СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ СО СШИТЫМ ГИДРОФОБНЫМ ПОКРЫТИЕМ

Изобретение относится к способам нанесения сшитого гидрофильного покрытия на силиконовую контактную линзу. Предложен способ изготовления силиконовой гидрогелевой контактной линзы, на которой находится сшитое гидрофильное покрытие, включающий нагревание силиконовой гидрогелевой контактной линзы в водном растворе в присутствии растворимого в воде сильно разветвленного термически сшивающегося гидрофильного полимерного материала, содержащего положительно заряженные азетидиниевые группы, при температуре от 40°С до 140°С в течение периода времени, достаточного для ковалентного связывания термически сшивающегося гидрофильного полимерного материала на поверхности силиконовой гидрогелевой контактной линзы с помощью ковалентных связей, каждая из которых образована между одной азетидиниевой группой и одной из реакционноспособных функциональных групп на поверхности силиконовой гидрогелевой контактной линзы и/или вблизи от нее, и, таким образом, образование сшитого гидрофильного покрытия на силиконовой ...

ОТТАЛКИВАЮЩИЕ ЗЕМЛЮ И ГРЯЗЬ ПОКРЫТИЯ ИЗ ПОРОШКОВОГО МАТЕРИАЛА

Изобретение относится к вариантам отталкивающих землю и грязь покрытиям из порошкового материала, содержащим анионные фтористые поверхностно-активные вещества, и способу получения покрытий такого типа. Предложена отталкивающая грязь панель, содержащая подложку и нанесенное на эту подложку покрытие из порошкового материала, сформированное из смеси, содержащей связующее вещество, содержащее полимерную смолу, содержащую по меньшей мере две функциональные группы, которая по существу не содержит групп фторзамещенного углеводорода; сшивающее средство, которое реагирует с функциональными группами полимерной смолы; и состав поверхностно-активного вещества, который по существу не содержит растворителей и содержит анионное фтористое поверхностно-активное вещество. Анионное фтористое поверхностно-активное вещество присутствует в количестве от 0,05 до 4 мас.% от общей массы состава покрытия из порошкового материала. Технический результат – получение грязеотталкивающих покрытий без ухудшения прочности ...

ЭЛАСТОМЕРНЫЕ ПОКРЫТИЯ

Настоящее изобретение относится к покрытиям и способам формирования покрытий на подложках. Описано полимерное нанокомпозитное покрытие, включающее в себя эластомерную пленку, содержащую по меньшей мере 30 мас.% проводящих наночастиц, в пересчете на общую массу эластомера и проводящих наночастиц, причем эти проводящие наночастицы имеют средний размер частиц вдоль каждого измерения менее 500 нм для наночастиц, имеющих соотношение длины и шириныменее 20 : 1, или имеют средний размер частиц вдоль каждого измерения менее 2000 нм для наночастиц, имеющих соотношение длины и ширины 20 : 1 или больше, и эти проводящие наночастицы сформированы в агрегаты микро- и наноразмера, имеющие морфологию с направленными внутрь углами, где некоторая часть этих агрегатов выступает из эластомерной матрицы, тем самым открывая морфологию агрегатов с направленными внутрь углами и обеспечивая желаемую шероховатость поверхности покрытия. Также описаны подложка, способ получения полимерного нанокомпозитного покрытия ...

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ С ОБОГАЩЕННЫМИ ВОДОЙ ПОВЕРХНОСТЯМИ

... 1. Гидратированная силиконовая гидрогелевая контактная линза, включающая:переднюю поверхность и противолежащую заднюю поверхность; и слоистую структурную конфигурацию в диапазоне от передней поверхности до задней поверхности,где слоистая структурная конфигурация включает передний наружный гидрогелевый слой, внутренний слой силиконового гидрогелевого материала и задний наружный гидрогелевый слой,где силиконовый гидрогелевый материал обладает проницаемостью для кислорода, равной не менее примерно 50 барреров, и первым содержанием воды (обозначенным, как WC), равным от примерно 10% до примерно 70% мас.%, где передний и задний гидрогелевые слои обладают в основном постоянной толщиной и объединяются на наружной кромке контактной линзы, полностью закрывая внутренний слой силиконового гидрогелевого материала, где передний и задний гидрогелевые слои независимо друг от друга обладают вторым содержанием воды, превышающим WC, характеризующимся или (а) отношением набухания в воде, составляющим не менее ...

ПРОТИВОЗАГРЯЗНИТЕЛЬНАЯ СТРУКТУРА И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

Изобретение относится к противозагрязнительной структуре для использования в автомобильной детали и касается противозагрязнительной структуры и способа ее изготовления. Структура включает поверхностный слой, который сформирован на подложке и включает микропористую структуру, и фторсодержащую жидкость, удерживаемую в микропорах микропористой структуры. Элементарный фтор присутствует по меньшей мере в поверхностной части поверхностного слоя. Изобретение обеспечивает создание противозагрязнительной структуры с высокой теплостойкостью и износостойкостью. 4 н. и 17 з.п. ф-лы, 9 ил., 5 табл.

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ СО СШИТЫМ ГИДРОФИЛЬНЫМ ПОКРЫТИЕМ

Настоящее изобретение относится к области медицины, а именно к легко использующимся силиконовым гидрогелиевым контактным линзам, содержащим: предварительно сформированные силиконовые гидрогелевые контактные линзы; и сшитое гидрофильное покрытие, находящееся на предварительно сформированных силиконовых гидрогелевых контактных линзах, где сшитое гидрофильное покрытие содержит от 5 до 80 мас.% полимерных цепей, полученных из сополимера, который представляет собой продукт полимеризации композиции, содержащей (1) от 0,1 до 30 мас.% одного или большего количества реакционноспособных виниловых мономеров и (2) по меньшей мере одного содержащего фосфорилхолин винилового мономера, где указанными одним или большими количествами реакционноспособных виниловых мономеров являются виниловые мономеры, имеющие карбоксигруппу или аминогруппу, где легко использующиеся силиконовые гидрогелевые контактные линзы обладают (1) временем разрушения водяной пленки (ВРВП), составляющим 5 с или более, (2) проницаемостью ...

СПОСОБ ПОЛУЧЕНИЯ ПОВЕРХНОСТНО-МОДИФИЦИРОВАННОГО МАТЕРИАЛА

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ С ОБОГАЩЕННЫМИ ВОДОЙ ПОВЕРХНОСТЯМИ

... 1. Силиконовая гидрогелевая контактная линза, обладающая слоистой структурной конфигурацией и градиентом содержания воды от внутренней до наружной части силиконовой гидрогелевой контактной линзы, включающая: силиконовое гидрогелевое ядро (или объемный материал), полностью закрытое наружным (поверхностным) слоем гидрогеля, обладающим толщиной не менее 0,1 мкм, измеренной с помощью атомной силовой микроскопии по сечению от задней поверхности до передней поверхности силиконовой гидрогелевой контактной линзы в полностью гидратированном состоянии, где наружный гидрогелевый слой в основном не содержит кремнийи где содержание воды в наружном гидрогелевом слое не менее чем в 1,2 раза (или 120%) больше содержания воды в силиконовом гидрогелевом объемном материале в полностью гидратированном состоянии.2. Силиконовая гидрогелевая контактная линза по п.1, в которой наружный (поверхностный) слой гидрогеля обладает толщиной от 0,1 до 20 мкм, измеренной с помощью атомной силовой микроскопии по сечению ...

Non-fluorinated water-based compositions with plant-based materials for generating superhydrophobic surfaces

A non-fluorinated composition configured to create a superhydrophobic surface includes a hydrophobic matrix component free of fluorine; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 µm; and water, wherein the hydrophobic matrix component is in an aqueous dispersion. Also, a non-fluorinated composition configured to create a superhydrophobic surface includes a hydrophobic matrix component free of fluorine, wherein the hydrophobic matrix component includes a polyolefin, a natural wax, or a synthetic wax; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 µm; an emulsifier; and water, wherein the hydrophobic component is in an aqueous dispersion.

DEVICES INCORPORATING A LIQUID-IMPREGNATED SURFACE

An article with a liquid-impregnated surface (120), the surface (120) having a matrix of features (124) thereupon, spaced sufficiently close to stably contain a liquid (126) therebetween or therewithin, and preferable also a thin film thereupon. The surface (120) provides the article with advantageous non-wetting properties. Compared to previous non wetting surfaces (104), which include a gas (110) (e.g., air) entrained within surface textures (108), these liquid-impregnated surfaces (120) are resistant to impalement and frost formation, and are therefore more robust.

Novel antifouling technology by raft polymerization

Directed bioadhesion coatings, methods of forming directed bioadhesion coatings, and methods of directing bioadhesion are provided. In particular, methods of forming directed bioadhesion coatings include providing a substrate having a graft monomer layer on a surface thereof, selectively removing discrete portions of the graft monomer layer to expose the substrate surface, polymerizing any remaining portions of the graft monomer layer via reversible addition-fragmentation chain-transfer (RAFT) polymerization with a RAFT chain transfer agent to form a plurality of graft polymers, and simultaneously with polymerizing the remaining graft monomer layer, grafting the plurality of graft polymers to the substrate to form a chemical pattern on the substrate.

STRUCTURED SURFACES HAVING ELEVATIONS AND DEPRESSIONS, METHOD FOR PRODUCING SURFACES OF THIS TYPE AND THE USE THEREOF

Elastomeric coatings having hydrophobic and/or oleophobic properties

This disclosure deals with novel formulations to create highly durable hydrophobic, superhydrophobic, oleophobic and/or superoleophobic surfaces that can be nearly transparent. The formulations of this invention can be applied by dip, spray and painting processes.

Process for preparing a surface-modified material

The present invention relates to a method of manufacturing a surface-modified material, wherein a substrate, which comprises on at least one side a coating layer comprising a salifiable alkaline or alkaline earth compound, is treated with a liquid composition comprising an acid to form at least one surface-modified region on the coating layer.

Hydrophobic and oleophobic coatings

A hydrophobic surface comprises a surface texture and a coating disposed on the surface texture, wherein the coating comprises an amorphous diamond like carbon material doped with 10 to 35 atomic percent of Si, O, F, or a combination comprising at least one of the foregoing, or a low surface energy material selected from fluoropolymer, silicone, ceramic, fluoropolymer composite, or a combination comprising at least one of the foregoing; and wherein the surface texture comprises a micro texture, a micro-nano texture, or a combination of a micro texture and a micro-nano texture.

A SILICONE HYDROGEL LENS WITH A CROSSLINKED HYDROPHILIC COATING

A cost-effective method for making a silicone hydrogel contact lens has a crosslinked hydrophilic coating applied thereon. The method involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally- crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, and at a temperature from 40 Centigrade to 140 Centigrade for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a low water content silicone hydrogel core (or bulk material) completely covered with a layer of a water-rich (e.g., a water content greater than 80%), hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a low water content silicone hydrogel core (or bulk material) completely covered with a layer of a water-rich (e.g., a water content greater than 80%), hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.

SLIPPERY LIQUID-INFUSED POROUS SURFACES AND BIOLOGICAL APPLICATIONS THEREOF

A self-healing, scratch resistant slippery surface that is manufactured by wicking a chemically-inert, high-density liquid coating over a roughened solid surface featuring micro and nanoscale topographies is described. Such a slippery surface shows anti-wetting properties, as well as exhibits significant reduction of adhesion of a broad range of biological materials, including particles in suspension or solution. Specifically, the slippery surfaces can be applied to medical devices and equipment to effectively repel biological materials such as blood, and prevent, reduce, or delay coagulation and surface-mediated clot formation. Moreover, the slippery surfaces can be used to prevent fouling by microorganisms such as bacteria.

SLIPPERY LIQUID-INFUSED POROUS SURFACES AND BIOLOGICAL APPLICATIONS THEREOF

A self-healing, scratch resistant slippery surface that is manufactured by wicking a chemically-inert, high-density liquid coating over a roughened solid surface featuring micro and nanoscale topographies is described. Such a slippery surface shows anti-wetting properties, as well as exhibits significant reduction of adhesion of a broad range of biological materials, including particles in suspension or solution. Specifically, the slippery surfaces can be applied to medical devices and equipment to effectively repel biological materials such as blood, and prevent, reduce, or delay coagulation and surface-mediated clot formation. Moreover, the slippery surfaces can be used to prevent fouling by microorganisms such as bacteria.

WATER REPELLENT COATING COMPOSITION AND COATING FILMS AND COATED ARTICLES USING THE SAME

A water repellent coating composition comprises a fluororesin powder having a specific surface area ranging from 8 to 50 m2/g and a molecular weight ranging from 10,000 to 100,000; a binder resin; and a solvent. The fluororesin may be preferably at least one resin selected from polytetrafluoroethylene resins, tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer resins, and tetrafluoroethylene/hexafluoropropylene copolymer resins. The coating composition can be used in various fields including constructions, civil engineering, transportation, communication. The coating films and coated articles produced with the water repellent coating composition exhibit excellent water repellency, antisnow- or antiice-sticking properties, and weatherability.

PVC-based metallopolymer nanocomposite, coating composition comprising the same and coating film

A Composition for Surface-enhanced Road by Infiltration and Grooving Construction Method of Road Using the Same

ANTIMICROBIAL MATERIALS AND COATINGS

... 기판 상에 증착시킬 수 있는 내구성이 있는 항미생물 코팅, 이의 제조 방법및 제조 장치에 관한 것이다. 상기 코팅은 기판 및/또는 다른 입자에 부착되는 복수의 입자를 포함할 수 있다. 상기 입자는 전극의 한쪽 말단에서 전기적 아크나 방전을 발생시켜 전극으로부터 입자를 방출하도록 구성되어 있는, 단측 전극 장치를 이용하여 제공되며, 상기 아크 또는 방전은 전극의 말단이 접지된 물건에 근접하게 있지 않은 상태에서 발생될 수 있다. 입자는 평균 크기가 약 1000 nm, 800 nm, 500 nm 또는 200 nm 보다 작은 나노 크기의 입자들로 이루어진 한 층 이상으로 제공될 수 있다. 이러한 코팅의 두께는 약 1000 nm, 800 nm, 500 nm, 또는 250 nm 미만일 수 있다. 더 두꺼운 코팅도 제공될 수 있다. 코팅은 바람직하기로는 은, 텅스텐, 귀금속류, 세라믹 등의 비화학양론적 화합물, 희토류 금속 및 그 화합물 등의 그외 금속, 및 이의 조합을 포함할 수 있다. 이러한 코팅은 기판에서의 제거에 저항성을 보일 수 있으며, 항미생물 특성을 나타낼 수 있으며, 예컨대 박테리아 및 그외 미생물을 사멸시키거나 증식을 저해할 수 있다.

SURFACE TREATING AGENT WITH EXCELLENT WATER-REPELLENCY AND SCRATCH-RESISTANCE AND METHOD FOR SURFACE TREATING EXTERIOR OF AUTOMOBILE USING SAME

The present invention relates to a surface treating agent with excellent water-repellency and scratch-resistance, and to a method for surface treating the exterior of an automobile using the same. The surface treating agent of the present invention forms a transparent film after surface treatment by simultaneously forming a coating film and etching when surface treating a material to be surface treated. The surface treating agent of the present invention has excellent glossiness and scratch-resistance when surface treating the exterior of the automobile, and thus maintains high glossiness for a long period of time, thereby improving satisfaction of consumers on the exterior of automobiles. The method for surface treating the exterior of an automobile of the present invention not only simplifies the process by omitting an alkaline cleaning or acid cleaning for removing oxide and must, but maintains excellent glossiness when the film formed after the surface treatment is exposed to a high ...

Surface treatment number

수계 에멀전 표면 처리제

... 불소 함유 단량체, 특히 플루오로알킬기 함유 단량체를 사용하지 않는 표면 처리제를 제공한다. (1) (a) 식: [식 중, A11은, 수소 원자 또는 메틸기이며, A12는, 탄소수 18 내지 30의 직쇄 또는 분지의 지방족 탄화수소기이다.]로 표시되는 장쇄 (메트)아크릴레이트 에스테르 단량체로부터 유도된 반복 단위를 갖는 비불소 중합체, (2) 아미드기 및 아미노기의 한쪽 또는 양쪽을 갖는 계면 활성 화합물을 포함하는 계면 활성제, 및 (3) 물을 포함하는 액상 매체를 포함하는 수계 에멀전인 표면 처리제가 개시되어 있다.

하드 코트 적층 필름

... 본 발명의 하나의 양상은 80% 이상의 총 광 투과율을 갖고, (α) 방향족 디히드록시 화합물로부터 유래하는 구조 단위 전체가 100 몰% 일 때 4,4'-(3,3,5-트리메틸시클로헥산-1,1-디일)디페놀로부터 유래하는 구조 단위를 30 몰% 이상 함유하는 방향족-폴리카보네이트 수지 필름의 적어도 하나의 표면 상에 (γ) 하드 코트를 갖는 하드 코트 적층 필름이다. 본 발명의 또다른 양상은 80% 이상의 총 광 투과율을 갖고, (α) 방향족 디히드록시 화합물로부터 유래하는 구조 단위 전체가 100 몰% 일 때 4,4'-(3,3,5-트리메틸시클로헥산-1,1-디일)디페놀로부터 유래하는 구조 단위를 30 몰% 이상 함유하는 방향족-폴리카보네이트 수지 필름, 및 (β) 폴리(메트)아크릴이미드 수지 필름으로 구성된 투명 적층 필름의 적어도 하나의 표면 상의 (γ) 하드 코트를 갖는 하드 코트 적층 필름이다.

내오염성이 뛰어난 바닥재

... 본 발명은 내오염성이 우수한 바닥재 및 이의 제조방법에 관한 것으로, 상기 바닥재는 표면 처리층에 다관능성의 우레탄 아트릴레이트 올리고머와 실리콘 아크릴레이트 올리고머를 특정 비율로 포함하고, 표면 처리층의 표면에 미세 주름 구조를 높은 빈도로 구현하여 별도의 첨가제 없이 낮은 광택도를 구현하고, 내오염성이 우수한 이점이 있다.

A POLYMERIC FILM SURFACE

A surface on a polymeric film having an array of patterned structures, wherein the array of patterned structures influences fluid flow of the surface and causes reduced attachment of a biological material.

ADDITIVES FOR HIGHLY REPELLENT POLYMERIC SURFACES

An additive for an ultraphobic polymeric composite is provided. The additive can have an aspect ratio of greater than about 15:1, and a surface free energy of less than about 20 J/m2. In addition, no single dimension of the additive is greater than about 50 micrometers. Upon mixing with a polymeric material having a viscosity of less than about 3000 cP and a surface tension of greater than about 35 mN/m to form a polymeric composite, the additive can bloom to the air interface surface of the polymeric composite to form surface roughness and an ultraphobic surface on the polymeric material.

SLIPPERY SURFACES WITH HIGH PRESSURE STABILITY, OPTICAL TRANSPARENCY, AND SELF-HEALING CHARACTERISTICS

The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS). Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). SLIPS outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where SLIPS will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.

CONTAINERS, BOTTLES, DRUMS, VATS, AND TANKS HAVING A SLIPPERY SURFACE

The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). Slippery liquid-infused porous surfaces outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where slippery liquid-infused porous surfaces will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments. 184-. (canceled)85. A container comprising a slippery surface , wherein the slippery surface comprises:a roughened surface; anda lubricating liquid having an affinity for the roughened surface,wherein the affinity is such that the lubricating liquid spontaneously wets the roughened surface and adheres within the roughened surface to form a stabilized liquid overlayer forming the slippery surface.86. The container according to claim 85 , wherein the roughened surface is chemically functionalized with one or more chemical functional groups claim 85 , andwherein the lubricating liquid has an affinity for the one or more chemical functional groups.87. The container according to claim 86 , wherein the roughened surface has a roughness factor that is greater than 1 claim 86 , wherein the roughness factor is defined as a ratio between a real surface area of the roughened surface and a projected surface area of the roughened surface.88. The container according to claim 87 , wherein the roughness factor ...

Superoleophobic alumina coatings

A superhydrophobic surface can be formed by contacting an article with a suspension of fluorinated boehmite particles to leave a film of the fluorinated boehmite particles after removal of the suspending fluid. The film can be transparent or the film can be translucent or opaque. When the film is translucent or opaque, the film can render the surface superoleophobic.

Process for Preparing an Optically Clear Superhydrophobic Coating Solution

Optically clear hydrophobic and superhydrophobic coatings and solutions and methods for preparing them. Branched polysilicate structures having surface hydroxyl groups are formed by at least partially hydrolyzing an alkoxy silane precursor via water and an acid catalyst in a solvent, and catalyzing the hydrolysis product with a base to form a gel. The structures are dispersed to form a colloidal suspension, and then hydrophilic hydroxyl groups on the structures are reacted with a silylating agent and replaced with hydrophobic and/or oleophobic ligands. Additional solvent may be added to form a coating which is optically clear.

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ С ОБОГАЩЕННЫМИ ВОДОЙ ПОВЕРХНОСТЯМИ

Изобретение относится к силиконовой гидрогелевой контактной линзе. Контактная линза обладает слоистой структурной конфигурацией и градиентом содержания воды от внутренней до наружной части силиконовой гидрогелевой контактной линзы. Линза включает силиконовое гидрогелевое ядро или объемный материал, полностью закрытое наружным слоем гидрогеля, обладающим толщиной, равной не менее 0,1 мкм, измеренной с помощью атомной силовой микроскопии по сечению от задней поверхности до передней поверхности силиконовой гидрогелевой контактной линзы в полностью гидратированном состоянии. Наружный гидрогелевый слой в основном не содержит кремния. Содержание воды в наружном гидрогелевом слое не менее чем в 1,2 раза больше содержания воды в силиконовом гидрогелевом объемном материале в полностью гидратированном состоянии. Изобретение обеспечивает увеличение времени ношения контактной линзы. 3 н. и 39 з.п. ф-лы, 9 ил., 11 табл., 33 пр.

ПОКРЫТИЕ ИЗ ДЕНДРИТНОГО ПОЛИУРЕТАНА

Изобретение относится к защитному покрытию для поверхностей, поверхности, состоящей из защитного покрытия, и способу формирования защитного покрытия. В частности, оно относится к бесцветным полимерным защитным покрытиям для окрашенных поверхностей, которые применяются, помимо прочего, в автомобильной, судостроительной, авиационной и других отраслях промышленности. Композиция защитного покрытия включает первый компонент, включающий: дендритный полимер, имеющий примерно от 32 до 128 периферийных функциональных групп, периферийная функциональная группа включает в себя сшиваемую гидроксильную функциональную группу; по выбору один или несколько материалов из группы: акриловый полиол, имеющий примерно от 2 до 6 периферийных сшиваемых гидроксильных функциональных групп; совокупность наночастиц оксидов металлов, которые могут быть инкапсулированы в полимер, включающий в себя сшиваемую гидроксильную функциональную группу, и/или сурфактант фтора, включающий в себя сшиваемую гидроксильную функциональную ...

КОМПОЗИЦИЯ ПРОТИВООБРАСТАЮЩЕГО ПОКРЫТИЯ, ПОДВЕРЖЕННАЯ ЭРОЗИИ

ГРЯЗЕОТТАЛКИВАЮЩИЕ И ОБЕСПЕЧИВАЮЩИЕ УДАЛЕНИЕ ЛОС ПОКРЫТИЯ И ПРИМЕНЕНИЕ УКАЗАННЫХ ПОКРЫТИЙ

ЭЛАСТОМЕРНЫЕ ПОКРЫТИЯ

СИСТЕМА КРОЮЩЕЙ КОМПОЗИЦИИ, СПОСОБ ЕЕ ПОЛУЧЕНИЯ И ЕЕ ПРИМЕНЕНИЕ

ОТТАЛКИВАЮЩИЕ ЗЕМЛЮ И ГРЯЗЬ ПОКРЫТИЯ ИЗ ПОРОШКОВОГО МАТЕРИАЛА

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ СО СШИТЫМ ГИДРОФИЛЬНЫМ ПОКРЫТИЕМ

Изобретение относится к легким в использовании силиконовым гидрогелевым контактным линзам, а именно к упаковочному раствору для контактных линз, который представляет собой водный раствор, содержащий по меньшей мере один буферный агент в количестве, достаточном для поддержания значения pH, равного от 6,0 до 8,5 и от 0,01 % до 2 мас.% растворимого в воде и термически сшивающегося гидрофильного полимерного материала; где растворимый в воде и термически сшивающийся гидрофильный полимерный материал содержит (i) от 20% до 95 мас.% первых полимерных цепей, образованных из функционализированного эпихлоргидрином полиамина или полиамидоамина,(ii) от 5% до 80 мас.% гидрофильных фрагментов или вторых полимерных цепей, образованных по меньшей мере из одного увеличивающего гидрофильность агента, содержащего по меньшей мере одну реакционно-способную функциональную группу, выбранную из группы, включающей аминогруппу, карбоксигруппу, тиогруппу и их комбинацию, и (iii) положительно заряженные азетидиниевые ...

КОМПОЗИЦИЯ И СПОСОБ ДЛЯ РЕГУЛИРОВАНИЯ СМАЧИВАЕМОСТИ ПОВЕРХНОСТЕЙ

... 1. Композиция, содержащая:частицы ежевидной формы,по меньшей мере одно связующее средство, ипо меньшей мере одно средство, придающее гидрофобность, и/или по меньшей мере одно средство, придающее гидрофильность.2. Композиция по п. 1, характеризующаяся тем, что связующее средство действует как по меньшей мере одно средство, придающее гидрофобность, и/или по меньшей мере одно средство, придающее гидрофильность.3. Композиция по п. 1 или 2, характеризующаяся тем, что частицы ежевидной формы состоят из вещества, выбранного из группы, содержащей вещество, содержащее карбонат кальция, в особенности осажденный карбонат кальция, вещество, содержащее природный карбонат кальция, сатинит, и их смеси.4. Композиция по п. 1 или 2, характеризующаяся тем, что частицы ежевидной формы состоят из вещества, содержащего арагонитовый, кальцитовый, ватеритовый осажденный карбонат кальция, или их смеси.5. Композиция по п. 1 или 2, характеризующаяся тем, что частицы ежевидной формы состоят из вещества, содержащего ...

Hydrophober Artikel

Ein hydrophober Artikel, der ein Substrat und eine Nanopartikelschicht umfasst, die auf das Substrat aufgebracht wird und Nanopartikel-Agglomerate einschließt, wobei die Nanopartikel-Agglomerate eine Volumendurchschnitt-basierte Größe von mindestens 100 Nanometern aufweisen, wie unter Verwendung von Lichtstreuung gemäß ISO 13320 bestimmt. Der hydrophobe Artikel umfasst auch eine Bindemittelschicht, die auf und in direktem Kontakt mit der Nanopartikelschicht angeordnet ist, und ein oxidativ gehärtetes Produkt eines Silizium-basierten Harzes und eine äußerste Schicht, die dem Substrat gegenüber und auf und in direktem Kontakt mit der Bindemittelschicht angeordnet ist. Der hydrophobe Artikel weist einen Wasserkontaktwinkel von größer oder gleich 90 Grad auf, wie gemessen auf der äußersten Schicht des hydrophoben Artikels und unter Verwendung der modifizierten ASTM D5946-04 bestimmt.

Non-fluorinated water-based compositions with plant-based materials for generating superhydrophobic surfaces

A non-fluorinated composition configured to create a superhydrophobic surface includes a hydrophobic matrix component free of fluorine; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 µm; and water, wherein the hydrophobic matrix component is in an aqueous dispersion. Also, a non-fluorinated composition configured to create a superhydrophobic surface includes a hydrophobic matrix component free of fluorine, wherein the hydrophobic matrix component includes a polyolefin, a natural wax, or a synthetic wax; filler particles, wherein the filler particles are plant-based elements of a size ranging from 100 nm to 100 µm; an emulsifier; and water, wherein the hydrophobic component is in an aqueous dispersion.

A method for forming olephobic-hydrophillic coatings including paritcles and/or nano-particles, a coating formed thereby and an article to which the coating

Hydrophobic and oleophobic coatings

A hydrophobic surface comprises a surface texture and a coating disposed on the surface texture, wherein the coating comprises an amorphous diamond like carbon material doped with 10 to 35 atomic percent of Si, O, F, or a combination comprising at least one of the foregoing, or a low surface energy material selected from fluoropolymer, silicone, ceramic, fluoropolymer composite, or a combination comprising at least one of the foregoing; and wherein the surface texture comprises a micro texture, a micro-nano texture, or a combination of a micro texture and a micro-nano texture.

Durable polymer-aerogel based superhydrophobic coatings: a composite material

Soil and dirt repellent powder coatings

A dirt repellant panel coated with a powder coating composition that includes a polymeric binder and an anionic fluorosurfactant present in an amount ranging from about 0.1 wt. % to about 4 wt. %.

Superhydrophobic powder coatings

A superhydrophobic coating, comprises a superhydrophobic powder with superhydrophobic particles having a three dimensional nanostructured surface topology defining pores, and a resin. The superhydrophobic particles are embedded within the resin and the resin does not fill the pores of the superhydrophobic particles such that the three dimensional surface topology of the superhydrophobic particles is preserved. A precursor powder for a superhydrophobic coating and a method for applying a superhydrophobic coating to a surface are also disclosed.

Superhydrophobic powder coatings

A superhydrophobic coating, comprises a superhydrophobic powder with superhydrophobic particles having a three dimensional nanostructured surface topology defining pores, and a resin. The superhydrophobic particles are embedded within the resin and the resin does not fill the pores of the superhydrophobic particles such that the three dimensional surface topology of the superhydrophobic particles is preserved. A precursor powder for a superhydrophobic coating and a method for applying a superhydrophobic coating to a surface are also disclosed.

METHODS FOR PREPARING SUPERHYDROPHOBIC NANO-MICROSCALE PATTERNED FILMS

The present application discloses methods for preparing superhydrophobic nano-microscale patterned films, films prepared from such methods and uses of such films as superhydrophobic coatings. The superhydrophobic nano- microscale patterned films comprise high aspect ratio nanoparticles such as boron nitride nanotubes (BNNTs) and/or carbon nanotubes (CNTs).

DECORATIVE PRODUCT INCLUDING SOLUBLE PACKAGED BLEACH FOR INHIBITING SPOILAGE

A water-soluble texture enhancing composition, including a base powdered composition including powdered calcium carbonate, and a soluble packaged bleach, provided in sufficient quantity so that upon mixing with the base composition and water to form an aqueous slurry, and being agitated, the bleach provides an anti-microbial function for an extended period, preferably up to 80 hours. Also, a process for preparing a textured composition is provided, including providing a base powdered texture composition, providing soluble packaged bleach and mixing same with the base composition, and adding water to create an aqueous slurry, the soluble packaged bleach being provided in sufficient amount for inhibiting microbial growth in the solution for an extended period, preferably up to 80 hours.

SELF-CLEANING COATINGS AND METHODS FOR MAKING SAME

An embodiment of the present disclosure relates to a method of forming a self-cleaning coating on a substrate. Such a method comprises the step of selecting a substrate. In an embodiment, the substrate may be a flat or a non-flat substrate. In a related embodiment, the substrate may comprise of metals, metal oxides, organic/inorganic composites containing metals/metal oxides and plastic with silicon dioxide or metal oxides layer by sol-gel formation or other methods. In an embodiment, such a method comprises the step of cleaning the substrate. In another embodiment, the method comprises the step of roughening the substrate using an abrasive. In an embodiment, roughening of the substrate create microscopic tortuous grooves. Another embodiment of the method comprises coating the roughened surface with at least one hydrophobic chemical agent.

A SILICONE HYDROGEL LENS WITH A CROSSLINKED HYDROPHILIC COATING

A cost-effective method for making a silicone hydrogel contact lens has a crosslinked hydrophilic coating applied thereon. The method involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally- crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, and at a temperature from 40 Centigrade to 140 Centigrade for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.

APPARATUS AND METHODS EMPLOYING LIQUID-IMPREGNATED SURFACES

The invention is directed to apparatus comprising a liquid-impregnated surface (100), said surface (100) comprising an impregnating liquid and a matrix of solid features (102) spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin, and methods thereof. In some embodiments, one or both of the following holds: (i) 0 < f = 0.25, where f is a representative fraction of the projected surface area of the liquid-impregnated surface (100) corresponding to non- submerged solid at equilibrium; and (ii) Sow(a) < 0, where Sow(a) is spreading coefficient, defined as ? wa - ? wo - Yoa, where y is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid.

FORMULATION

The present invention relates to a process for coating a surface with micelles which comprise an AB block copolymer comprising the step of treating the surface with an apolar liquid containing the micelles; and to surfaces coated with such micelles.

FORMULATION

DEVICE AND METHODS OF USING IMPREGNATED WITH LIQUID AFTER SURFACES

COMPOSITION

SURFACE WITH LIQUID STNOI IMPREGNATION, METHODS OF MANUFACTURING AND THEIR PRODUCT

Cover material and packaging container

발수성 박막용 조성물, 이를 이용한 발수성 박막 및 그 제조방법

... 본 발명은 우수한 발수성을 나타내는 동시에 이와 상충관계(trade off)에 있는 투명성의 저하를 회피하거나 최소화할 수 있으며, 간단하고 신속하게 박막을 형성할 수 있는 발수성 박막용 조성물, 이를 이용한 발수성 박막 및 그 제조방법에 관한 것이다.

표면 처리제

... 불소 함유 단량체, 특히 플루오로알킬기 함유 단량체를 사용하지 않는 표면 처리제를 제공한다. (1) (i) 식: [식 중, A11은, 수소 원자 또는 메틸기이며, A12는, 탄소수 18 내지 30의 직쇄 또는 분지의 지방족 탄화수소기이다.]로 표시되는 장쇄 (메트)아크릴레이트 에스테르 단량체로부터 유도된 반복 단위, 및 (ii) 환상 탄화수소기를 갖는 (메트)아크릴레이트 단량체로부터 유도된 반복 단위를 갖는 비불소 중합체, 및 (2) 비이온성 계면 활성제 및 양이온성 계면 활성제의 한쪽 또는 양쪽을 포함하는 계면 활성제, 및 (3) 물을 포함하는 액상 매체를 포함하는 수계 에멀전인 표면 처리제가 개시되어 있다.

Lipophilic agent by modifying starch particles

ANTIBACTERIAL MATERIAL AND MANUFACTURING METHOD THEREOF

The present invention relates to an antibacterial material and a manufacturing method thereof. The antibacterial material comprises: a substrate; and a fluorine-based polymer thin film formed on the substrate and comprising poly(perfluoroalkyl methacrylate) or poly(perfluoroalkyl acrylate). The fluorine-based polymer thin film is provided with a regularly repeated circular pattern convexly formed. An antibacterial material in which a fluorine-based polymer thin film is formed according to the present invention, due to the fluorine-based polymer thin film formed with a pattern, inhibits bacterial growth on a surface of the thin film surface, has a high hydrophobicity and a high light transmittance, and thus, can be applied to a camera or the like for a medical apparatus. Further, the method for manufacturing an antibacterial material in which a fluorine-based polymer thin film is formed according to the present invention is not performed by a complicated process, there is no need of a post ...

FOULING-RESISTANT FUNCTIONAL COATING MATERIAL

The present invention relates to a coating technology for controlling the surface energy, and more specifically, to a fouling-resistant functional coating material which improves adhesive force with a base material such as a lens or the like and has fouling resistance and water repelling and oil repelling properties, and a coating film manufacturing technology using the same. The fouling-resistant functional coating material according to an embodiment of the present invention may comprise: a base material (10); a low reflection coating layer (20) of a multilayer structure in which a layer including silicon oxide (SiO_2) and a layer including titanium oxide (TiO_2) are alternately stacked; an antifouling coating layer (30) which is formed on the low reflection coating layer (20) and formed of organic-inorganic composite materials having a silicon compound and a fluorine compound coupled thereto; and an adhesive force-improving layer (40) which is interposed between the base material (10) ...

Composition for coating

FORMULATION

The present invention relates to a process for coating a surface with micelles which comprise an AB block copolymer comprising the step of treating the surface with an apolar liquid containing the micelles; and to surfaces coated with such micelles.

COATING METHOD OF KITCHEN CONTAINER

Disclosed is a coating method of kitchen container. Provided is a coating method of kitchen container, comprising the steps of: (a) placing a magnet at the lower portion of the bottom of a kitchen container; (b) applying a coating solution containing a magnetic substance to the bottom of the kitchen container; (c) letting the same stand for one hour to allow the magnetic substance to be aggregated by the magnetism of the magnet, thereby forming a protruded pattern; (d) separating the magnet from the bottom of the kitchen container; and (e) letting the same stand for two hours to allow the magnetic substance aggregated at the protruded pattern to be dispersed around by gravity and diffusion.

Slippery surfaces with high pressure stability, optical transparency, and self-healing characteristics

The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS). Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). SLIPS outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where SLIPS will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.

Fluorine-containing coating film and water- and oil-repellent coating composition

It is an object of the present invention to provide a coating film capable of realizing satisfactory sliding properties in addition to water- and oil-repellent properties and wear resistance evaluated by a static contact angle, and a coating composition for obtaining the coating film.The present invention is directed to a fluorine-containing coating film which has a root mean square roughness of less than 3.5 nm and has a perfluoropolyether structure. It is preferred that the coating film has a polysiloxane backbone and further has a structure in which a fluoroalkyl group is directly bonded to a silicon atom of the polysiloxane backbone, and that a sliding angle of 6 μL of a water droplet is 24.3° or less, or a speed of 20 μL of a water droplet sliding on a coating film inclined at 32° is 0.1 cm/second or more.

Method and device for restoring and maintaining superhydrophobicity under liquid

A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity.

METHOD FOR PRODUCING SURFACE-MODIFIED BASE MATERIAL, METHOD FOR PRODUCING JOINED BODY, NEW HYDROSILANE COMPOUND, SURFACE TREATMENT AGENT, SURFACE TREATMENT AGENT KIT, AND SURFACE-MODIFIED BASE MATERIAL

The method for producing a surface-modified base material according to the present invention includes a step of bringing a base material having a polar group present on a surface thereof into contact with a hydrosilane compound having a molecular structure A and having a Si—H group composed of a silicon atom of the molecular structure A and a hydrogen atom bonded to the silicon atom in the presence of a borane catalyst so as to allow a dehydrocondensation reaction to take place between the base material and the compound, thereby forming the base material surface-modified with the molecular structure A. This production method is capable of surface-modifying a base material at a lower temperature in a shorter time than conventional methods and allows a wide variety of options for the form, type, and application of the base material, the mode of the modification reaction, and the type of the molecular structure with which the base material is surface-modified. 1. A method for producing a surface-modified base material , comprising a step of bringing a base material having a polar group present on a surface thereof into contact with a hydrosilane compound having a molecular structure A and having a Si—H group composed of a silicon atom of the molecular structure A and a hydrogen atom bonded to the silicon atom in the presence of a borane catalyst so as to allow a dehydrocondensation reaction to take place between the base material and the compound , thereby forming the base material surface-modified with the molecular structure A.2. The method for producing a surface-modified base material according to claim 1 , wherein the polar group is a hydroxy group and/or a carbonyl group.3. The method for producing a surface-modified base material according to claim 1 , wherein the polar group is a hydroxy group.4. The method for producing a surface-modified base material according to claim 1 , wherein the catalyst is tris(pentafluorophenyl)borane.5. The method for producing a ...

SURFACE TREATMENT AGENT

... wherein: each of the symbols are as defined herein. A content of the fluorine containing oil having a molecular weight of 2.0 or more times higher than the number average molecular weight of the fluorine-containing oils among the fluorine containing oil of the formula (O) is 10 mol % or less.

AQUEOUS COMPOSITION AND A METHOD OF PRODUCING DURABLE AND EXTREMELY EFFICIENT WATER REPELLING SUPERHYDROPHOBIC MATERIALS AT AMBIENT CONDITION THEREOF

The present invention relates to adurable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.

SLIPPERY SURFACES WITH HIGH PRESSURE STABILITY, OPTICAL TRANSPARENCY, AND SELF-HEALING CHARACTERISTICS

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ С ОБОГАЩЕННЫМИ ВОДОЙ ПОВЕРХНОСТЯМИ

Изобретение относится к офтальмологическим устройствам, предпочтительно к силиконовым гидрогелевым контактным линзам, которые обладают структурной конфигурацией, создающей градиент содержания воды. Предложена гидратированная силиконовая гидрогелевая контактная линза, обладающая слоистой структурной конфигурацией: содержащая обладающее низким содержанием воды силиконовое гидрогелевое ядро (или объемный материал), полностью закрытое слоем обогащенного водой (например, обладающего содержанием воды, превышающим 80%) гидрогеля, совсем или в основном не содержащего кремния. Технический результат – предложенная гидратированная силиконовая гидрогелевая контактная линза обладает высокой проницаемостью для кислорода, которая необходима для обеспечения здорового состояния роговицы глаза, и мягкой, обогащенной водой гладкой поверхностью для обеспечения комфорта при ношении. 24 з.п. ф-лы, 9 ил., 11 табл., 33 пр.

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ СО СШИТЫМ ГИДРОФИЛЬНЫМ ПОКРЫТИЕМ

Изобретение относится к легким в использовании силиконовым гидрогелевым контактным линзам. Предложена силиконовая гидрогелевая контактная линза с нанесенным сшитым гидрофильным покрытием, образованным из термически сшивающегося гидрофильного полимерного материала. Технический результат – предложенная линза обладает смачивающимся и долговечным покрытием, улучшающим гидрофильность и гладкость ее поверхности. 39 з.п. ф-лы, 10 табл., 24 пр.

СИЛИКОНОВЫЕ ГИДРОГЕЛЕВЫЕ ЛИНЗЫ СО СШИТЫМ ГИДРОФИЛЬНЫМ ПОКРЫТИЕМ

Группа изобретений относится к области медицины, а именно к легко использующимся силиконовым гидрогелиевым контактным линзам, содержащим: силиконовые гидрогелевые контактные линзы и сшитое гидрофильное покрытие, находящееся на них, где сшитое гидрофильное покрытие содержит от 5% до 80 мас.% поли(этиленгликолевых) цепей (ПЭГ цепей), которые получены из по меньшей мере одного члена, выбранного из группы, состоящей из поли(этиленгликоля) с одной единственной аминогруппой, поли(этиленгликоля) с одной единственной карбоксигруппой, поли(этиленгликоля) с одной единственной тиогруппой, H2N-ПЭГ-NH2, HOOC-ПЭГ-COOH, HS-ПЭГ-SH, H2N-ПЭГ-COOH, HOOC-ПЭГ-SH, H2N-ПЭГ-SH, многолучевого ПЭГ с одной или большим количеством аминогрупп, многолучевого ПЭГ с одной или большим количеством карбоксигрупп, многолучевого ПЭГ с одной или большим количеством тиогрупп, ПЭГ дендримера с одной или большим количеством аминогрупп, ПЭГ дендримера с одной или большим количеством карбоксигрупп, ПЭГ дендримера с одной или большим ...

Способ получения многофункциональных защитных покрытий

Изобретение относится к получению многофункциональных защитных покрытий на лакокрасочной основе, обладающих водоотталкивающими, антифрикционными, противоизносными, противообрастающими свойствами, и может быть использовано в судостроении и судоремонте, в строительстве при возведении металлических конструкций и сооружений, в различных областях машиностроения. Способ заключается в нанесении на подложку лакокрасочного материала (ЛКМ) и наноструктурированного политетрафторэтилена (ПТФЭ), полученного термодеструкцией фторопласта-4 с последующей конденсацией из газовой фазы. Наноструктурированный порошок ПТФЭ вводят непосредственно в лакокрасочный материал в виде дисперсии в ксилоле в количестве 1-40% от веса сухого ЛКМ, либо наносят путем натирания на поверхность ЛКМ после его отверждения. Обеспечивается повышение срока службы лакокрасочных покрытий и расширение спектра их защитных функций. 2 н.п. ф-лы, 3 ил., 1 табл., 11 пр.

Transparenter Grundkörper mit Belag-hemmender Beschichtung

Ein transparenter Grundkörper mit einer Belag-hemmenden Beschichtung wird bereitgestellt, der einen transparenten Grundkörper einschließt, ausgestattet mit einer ersten Hauptoberfläche und einer zweiten Hauptoberfläche entgegengesetzt der ersten Hauptoberfläche, wobei auf einer Oberfläche der ersten Hauptoberfläche ein Blendschutz-Verfahren ausgeführt wird; und eine Beschichtung aus einer Fluor-enthaltenden organischen Silizium-Verbindung, die eine Belag-hemmende Beschichtung ist, auf einer ersten Hauptoberflächenseite des transparenten Grundkörpers bereitgestellt wird, wobei die Oberflächen-Rauigkeit RMS der Belag-hemmenden Beschichtung größer als oder gleich 0,05 m und weniger als oder gleich 0,25 m ist, und die mittlere Länge eines Rauigkeits-Kurven-Elements RSm der Belag-hemmenden Beschichtung größer als oder gleich 10 m und weniger als oder gleich 40 m ist.

Hydrophobic and oleophobic coatings

A silicone hydrogel lens with a crosslinked hydrophilic coating

A cost-effective method for making a silicone hydrogel contact lens has a crosslinked hydrophilic coating applied thereon. The method involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally- crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, and at a temperature from 40 Centigrade to 140 Centigrade for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.

Process for preparing a surface-modified material

The present invention relates to a method of manufacturing a surface-modified material, wherein a substrate, which comprises on at least one side a coating layer comprising a salifiable alkaline or alkaline earth compound, is treated with a liquid composition comprising an acid to form at least one surface-modified region on the coating layer.

Method of making superhydrophobic/superoleophilic paints, epoxies, and composites

Superhydrophobic paints and epoxies comprising superoleophilic particles and surfaces and methods of making the same are described. The superoleophilic particles can include porous particles having a hydrophobic coating layer deposited thereon.

STAIN REPELLENT AND VOC ELIMINATING COATINGS AND USE THEREOF

JAWs Ref: 303988AU/91 A coating dispersion or building article can include titanium dioxide, and a dihydrazide. The coating dispersion or building article can further include calcium carbonate, calcined aluminum silicate, acrylic polymers, and a fluoroalkyl polymer.

Novel antifouling technology by raft polymerization

Directed bioadhesion coatings, methods of forming directed bioadhesion coatings, and methods of directing bioadhesion are provided. In particular, methods of forming directed bioadhesion coatings include providing a substrate having a graft monomer layer on a surface thereof, selectively removing discrete portions of the graft monomer layer to expose the substrate surface, polymerizing any remaining portions of the graft monomer layer via reversible addition-fragmentation chain-transfer (RAFT) polymerization with a RAFT chain transfer agent to form a plurality of graft polymers, and simultaneously with polymerizing the remaining graft monomer layer, grafting the plurality of graft polymers to the substrate to form a chemical pattern on the substrate.

DEVICES INCORPORATING A LIQUID-IMPREGNATED SURFACE

An article with a liquid-impregnated surface (120), the surface (120) having a matrix of features (124) thereupon, spaced sufficiently close to stably contain a liquid (126) therebetween or therewithin, and preferable also a thin film thereupon. The surface (120) provides the article with advantageous non-wetting properties. Compared to previous non wetting surfaces (104), which include a gas (110) (e.g., air) entrained within surface textures (108), these liquid-impregnated surfaces (120) are resistant to impalement and frost formation, and are therefore more robust.

NOVEL ANTIFOULING TECHNOLOGY BY RAFT POLYMERIZATION

Directed bioadhesion coatings, methods of forming directed bioadhesion coatings, and methods of directing bioadhesion are provided. In particular, methods of forming directed bioadhesion coatings include providing a substrate having a graft monomer layer on a surface thereof, selectively removing discrete portions of the graft monomer layer to expose the substrate surface, polymerizing any remaining portions of the graft monomer layer via reversible addition-fragmentation chain-transfer (RAFT) polymerization with a RAFT chain transfer agent to form a plurality of graft polymers, and simultaneously with polymerizing the remaining graft monomer layer, grafting the plurality of graft polymers to the substrate to form a chemical pattern on the substrate.

SOIL AND DIRT REPELLENT POWDER COATINGS

A dirt repellant panel coated with a powder coating composition that includes a polymeric binder and an anionic fluorosurfactant present in an amount ranging from about 0.1 wt. % to about 4 wt. %.

COATINGS, COATING COMPOSITIONS, AND METHODS OF DELAYING ICE FORMATION

A coating includes at least one coating layer containing first particles, second particles, and third particles distributed throughout a cross-linked, continuous polymer matrix. An outer surface of the coating layer includes surfaces of at least first particles extending outward from a top periphery of the polymer matrix. The outer surface exhibits a property of delaying ice formation compared to the coating layer without the first particles. A method includes applying a coating composition in one application step. The one-step coating composition contains first particles, second particles, and third particles in a base containing a polymer. A coating composition includes first particles, second particles, and third particles distributed in a matrix precursor.

SUPERHYDROPHOBIC POWDER COATINGS

A superhydrophobic coating, comprises a superhydrophobic powder with superhydrophobic particles having a three dimensional nanostructured surface topology defining pores, and a resin. The superhydrophobic particles are embedded within the resin and the resin does not fill the pores of the superhydrophobic particles such that the three dimensional surface topology of the superhydrophobic particles is preserved. A precursor powder for a superhydrophobic coating and a method for applying a superhydrophobic coating to a surface are also disclosed.

A COMPOSITION AND METHOD FOR CONTROLLING THE WETTABILITY OF SURFACES

The present invention relates to a composition comprising hedgehog shaped particles, at least one binder, and at least one hydrophobizing agent and/or at least one hydrophilizing agent, a method for controlling the wettability of substrate surfaces using these compositions, as well as a material comprising these compositions.

COMPOUND MATERIAL BASED ON RICE HUSK AND BINDER, MODIFIED WITH CARBON NANOSTRUCTURES

Compound material based on water, cement, rice husk and polymeric resin modified with carbon nanostructures, in which variation of the ratios in which said components are combined together with production pressure and temperature results in a consistency suitable for said material to be used as paint, coating paste or panel-production conglomerate.

Article Coated with an Ultra High Hydrophobic Film and Process for Obtaining Same

The present invention relates to an article having at least one surface, wherein said surface is at least partially coated with a ultra high hydrophobic film having a surface roughness such that the film exhibits a static water contact angle at least equal to 115°, preferably 120°, even better 125°, and wherein said film is a nanostructured film comprising a first layer comprising nanoparticles bound by at least one binder adhering to the surface of the article, and a second layer of an anti-fouling top coat at least partially coating said first layer. The present invention also concerns a process for preparing the above article.

ANTIBIOFILM NANOPOROUS NANOSTRUCTURES AND METHOD TO PRODUCE SAME

Durable nanoporous nanostructured materials that modify, eliminate and destroy biofilms that may develop due to the presence of bacteria, fungi and other microbes and method for making the same. Such nanoporous nanostructures may be deposited as coatings on a substrate and such coatings may include at least one nanopore and a plurality of nanoparticles which adhere to the substrate and/or other particles. The nanostructure can be produced using a single-sided electrode arrangement which is configured to produce an electrical arc or discharge at one end of an electrode and to emit the nanoparticles. The nanoparticles form a non-porous framework which delineates any nanopores and which can be deposited as one or more layers of nanothickness. Such nano structures may be resistant to removal from the substrate. Also described are testing methods and apparatus for the quick, accurate and simple evaluation of the efficacy of the antibiofilm properties of the nanoporous nano structure. 1. A nanoporous structure comprising:a framework of non-porous material comprised of nanoparticles, andat least one nanopore supported in the framework, said nanopore measuring less than 1000 nanometers in one direction wherein the structure exhibits antibiofilm properties.2. The nanoporous structure of further comprising:a substrate, anda coating applied to a surface of the substrate, wherein the coating comprises the framework of non-porous material comprised of nanoparticles and a plurality of nanopores supported in the framework, wherein at least one portion of the substrate is covered by the coating.3. The nanoporous structure of wherein said coating is comprised of multiple nanoporous layers claim 2 , said multiple nanoporous layers forming a chemical gradient.4. The nanoporous structure of wherein said coating is comprised of multiple nanoporous layers claim 2 , said multiple nanoporous layers forming a porous gradient.5. The nanoporous structure of wherein said plurality of nanopores ...

SELF-ASSEMBLING SURFACE COATING

Mechanisms for coating surfaces of materials, the resulting coated materials, and solutions for use in material-coating processes are described. Triblock molecule components may be selected for desired properties. When applied in solution to a material, the molecules self-assemble into similarly oriented micro- or nanostructures coating the surface of the material. Various molecule properties can be tailored to produce a range of desirable surface coating properties. The surface coating may optionally be self cleaning if selected to be appropriately hydrophobic, allowing water and particulates to roll off of the surface with minimal friction. 120-. (canceled)21. A solution tailored for coating material surfaces , comprising:a solvent; [ a rigid rod portion comprising an aggregating phenol derivative; and', 'a terminal group portion comprising a hydroxyl group or carbon triflouride;, 'an end group portion comprising, 'a flexible spacer portion comprising a repeating hydrocarbon polymer with a double bond;', 'a random coil portion comprising molecules including styrene;', 'a hydrophilic end disposed proximal to the end group portion;', 'a hydrophobic end opposite the hydrophilic end, wherein hydrophobicity of the hydrophobic end is tailored to a desired hydrophobicity of a surface coating formed from nanostructures produced by self-assembly of the tribloc molecules during evaporation of the solvent; and, 'tribloc molecules mixed in the solvent, each tribloc molecule comprisinga bulk polymer blended with the tribloc molecules to develop surface texture of the surface coating.22. The solution of claim 21 , wherein the rigid rod portion aggregating phenol derivative comprises a biphenyl ester segment.23. The solution of claim 21 , wherein the terminal group portion comprises the hydroxyl group.24. The solution of claim 21 , wherein the terminal group portion comprises the carbon triflouride.25. The solution of claim 21 , wherein molecules in the terminal group portion ...

Superhydrophobic powder coatings

A superhydrophobic coating, comprises a superhydrophobic powder with superhydrophobic particles having a three dimensional nanostructured surface topology defining pores, and a resin. The superhydrophobic particles are embedded within the resin and the resin does not fill the pores of the superhydrophobic particles such that the three dimensional surface topology of the superhydrophobic particles is preserved. A precursor powder for a superhydrophobic coating and a method for applying a superhydrophobic coating to a surface are also disclosed.

A METHOD FOR TREATING A SURFACE AND AN ARTICLE COMPRISING A LAYER OF MICROBIAL STRUCTURES

The present invention provides a method of treating a surface of a substrate, the method comprising: a) growing a microbe on the surface of the substrate to be treated to form a layer of microbial structures, wherein the microbe is selected from fungi, algae, lichens and any combination thereof; and b) coating the microbial structures to form a first coating thereon, wherein the first coating has a thickness of no more than 1 μm. The present invention also provides an article comprising a layer of microbial structures, optionally made by using the method of the present invention. 1. A method of treating a surface of a substrate , the method comprising:a) growing a microbe on the surface of the substrate to be treated to form a layer of microbial structures, wherein the microbe is selected from fungi, bacteria, algae, lichens and any combination thereof; andb) coating the microbial structures to form a first coating thereon, wherein the first coating has a thickness of no more than 1 μm.2. A method according to claim 1 , wherein the microbe is selected from fungi or bacteria comprising hyphae with a diameter of between 0.3 μm and 100 μm.3. A method according to claim 2 , wherein the fungi or bacteria are selected from Molds claim 2 , Actinomycetes and any combination thereof.4Rhizopus, Mucor, Neurospora, Aspergillus, Penicillium, Streptomyces, Nocardia, Frankia, Actinoplanes, thermomonospora. A method according to claim 3 , wherein the fungi or bacteria are selected from and any combination thereof.5StreptomycesStreptomyces albus, Streptomyces griseus, Streptomyces venezuelae, Streptomyces aureofaciens. A method according to claim 4 , wherein the is selected from and any combination thereof.6. A method according to claim 1 , wherein the first coating is formed on the microbial structures by one or more methods selected from vapor deposition claim 1 , self-propagation high-temperature synthesis claim 1 , thermochemical synthesis claim 1 , thermal spraying claim 1 , ...

OMNIPHOBIC POLYURETHANE COMPOSITIONS, RELATED ARTICLES, AND RELATED METHODS

The disclosure relates to a thermoset omniphobic composition, which includes a thermoset polymer with first, second, and third backbone segments, first urethane groups linking the first and third backbone segments, and second urethane groups linking the first and second backbone segments. The first, second, and third backbone segments generally correspond to urethane reaction products of polyisocyanate(s), hydroxy-functional hydrophobic polymer(s), and polyol(s), respectively. The thermoset omniphobic composition has favorable omniphobic properties, for example as characterized by water and/or oil contact and/or sliding angles. The thermoset omniphobic composition can be used as a coating on any of a variety of substrates to provide omniphobic properties to a surface of the substrate. Such omniphobic coatings can be scratch-resistant, ink/paint resistant, dirt-repellent, and optically clear. The thermoset omniphobic composition can be applied by different coating methods including cast, spin, roll, spray and dip coating methods. 1. A thermoset omniphobic composition comprising: (i) first backbone segments,', '(ii) second backbone segments,', '(iii) third backbone segments,', '(iv) first urethane groups linking the first backbone segments and the third backbone segments, and', '(v) second urethane groups linking the first backbone segments and the second backbone segments;, 'a thermoset polymer comprising a crosslinked backbone, the crosslinked backbone comprising the first backbone segments have a structure corresponding to a urethane reaction product from at least one polyisocyanate,', {'sub': 'g', 'the second backbone segments have a structure corresponding to a urethane reaction product from at least one hydroxy-functional hydrophobic polymer having a glass transition temperature (T) of 70° C. or less,'}, 'the third backbone segments have a structure corresponding to a urethane reaction product from at least one polyol,', 'the first urethane groups have a ...

ANTIFOULING LAYER, ANTIFOULING SUBSTRATE, DISPLAY DEVICE, AND INPUT DEVICE

An antifouling substrate includes a substrate having a surface and an antifouling layer provided on the surface of the substrate. The antifouling layer contains at least one of a first compound having an ester linkage in a portion other than terminal ends and a second compound having a cyclic hydrocarbon group. The advancing contact angle of oleic acid on the surface of the antifouling layer is 15° or less, and the receding contact angle of oleic acid on the surface of the antifouling layer is 10° or less. 1. An antifouling substrate , comprisinga substrate having a surface, andan antifouling layer provided on the surface of the substrate, whereinthe antifouling layer contains at least one of a first compound having an ester linkage in a portion other than terminal ends and a second compound having a cyclic hydrocarbon group,the at least one of the first compound and the second compound is adsorbed on the surface of the substrate,an advancing contact angle of oleic acid on a surface of the antifouling layer is 15° or less, anda receding contact angle of oleic acid on the surface of the antifouling layer is 10° or less.4. The antifouling substrate according to claim 1 , wherein the antifouling layer has a surface on which a recess is provided.5. The antifouling substrate according to claim 4 , wherein the recess generates positive capillary pressure acting on a liquid present on the surface of the antifouling layer.6. The antifouling substrate according to claim 4 , whereina width W of the recess is within a range of 1 nm or more and 1 mm or less, anda depth D of the recess is within a range of 1 nm or more and 1 mm or less.7. The antifouling substrate according to claim 1 , wherein the antifouling layer is a monomolecular layer containing the at least one of the first compound and the second compound.8. The antifouling substrate according to claim 1 , wherein the antifouling layer is a coating layer.9. The antifouling substrate according to claim 8 , whereinthe ...

RESIN - FLUORINE-CONTAINING BORIC ACID COMPOSITE PARTICLES COMPOSITE MATERIAL

A composite material of resin—fluorine-containing boric acid composite particles comprising a resin, and a condensate of boric acid and a fluorine-containing alcohol represented by the general formula R-A-OH (wherein Ris a perfluoroalkyl group having 6 or less carbon atoms, or a polyfluoroalkyl group, in which some of the fluorine atom or atoms of the perfluoroalkyl group are replaced by a hydrogen atom or hydrogen atoms, and which contains a terminal perfluoroalkyl group having 6 or less carbon atoms and a perfluoroalkylene group having 6 or less carbon atoms; and A is an alkylene group having 1 to 6 carbon atoms, or comprising a resin, and a condensate of boric acid, the said fluorine-containing alcohol and an alkoxysilane at a molar ratio of 1.0 or less based on the fluorine-containing alcohol. These composite materials of resin—fluorine-containing boric acid composite particles has good adhesion to inorganic substrates, and the like. 1. A composite material of resin—fluorine-containing boric acid composite particles comprising: {'br': None, 'sub': 'F', 'R-A-OH \u2003\u2003[I]'}, 'a resin, and a condensate of boric acid and a fluorine-containing alcohol represented by the general formula{'sub': 'F', 'wherein Ris a perfluoroalkyl group having 6 or less carbon atoms, or a polyfluoroalkyl group, in which some of the fluorine atom or atoms of the perfluoroalkyl group are replaced by a hydrogen atom or hydrogen atoms, and which contains a terminal perfluoroalkyl group having 6 or less carbon atoms and a perfluoroalkylene group having 6 or less carbon atoms; and A is an alkylene group having 1 to 6 carbon atoms, or'} 'a resin, and a condensate of boric acid, the said fluorine-containing alcohol and an alkoxysilane at a molar ratio of 1.0 or less based on the fluorine-containing alcohol.', 'comprising2. The composite material of resin—fluorine-containing boric acid composite particles according to claim 1 , wherein the fluorine-containing alcohol represented by the ...

WATER/OIL REPELLANT COATING FILM AND MANUFACTURING METHOD THEREOF

In an aspect of the present invention, there is provided a water/oil repellent coating film, the water/oil repellent coating film being formed on a surface of a solid object, wherein 2. The water/oil repellant coating film according to claim 1 , whereina root mean square surface roughness Rq of the water/oil repellant coating film is equal to or less than 50 nm.3. The water/oil repellant coating film according to claim 1 , whereinany of alkoxy group and hydroxyl group does not exist on the surface of the water/oil repellant coating film.4. The water/oil repellant coating film according to claim 1 , whereinthe water/oil repellant coating film does not contain any organic group other than the methyl group included in the group expressed by chemical formula (A).5. The water/oil repellant coating film according to claim 1 , whereinthe water/oil repellant coating film is chemically bound with the surface of the solid object. An aspect of the present invention relates to manufacturing methods of water/oil repellent coating film and manufacturing methods of precursor solution thereof.Upon a droplet adhering to a surface of a solid object, corrosion, deterioration, and pollution may expand from the adhered point. For example, an exhaust pipe of an engine is continuously exposed to high temperature air. Meanwhile it is known that rusting is occurred from a point at which a water droplet is adhered if the water droplet is adhered or condensation is occurred when temperature of the exhaust pipe is low. Further, if oil adhered to a solid subject is continued to be exposed to high temperature air, the oil is carbonized and adheres with a high strength. Therefore, visibility may be decreased and choke may occur. Therefore, in various fields of engineering, material and surface treatment is tried to be developed, which makes it possible to prevent deterioration of capability for removing droplets over a long period of time even in a high-temperature environment.Recently, ...

Hydrophobic Article

A hydrophobic article includes a substrate and a nanoparticle layer disposed on the substrate and including nanoparticle agglomerates wherein the nanoparticle agglomerates have an average volume based size of at least 100 nanometers as determined using light scattering via ISO 13320. The hydrophobic article also includes a binder layer disposed on and in direct contact with the nanoparticle layer and including an oxidatively cured product of a silicon-based resin and an outermost layer that is disposed opposite the substrate and on and in direct contact with the binder layer. The hydrophobic article has a water contact angle of greater than or equal to 90 degrees as measured on the outermost layer of the hydrophobic article and determined using modified ASTM D5946-04. 1. A hydrophobic article comprising:A. a substrate;B. a nanoparticle layer disposed on said substrate and comprising nanoparticle agglomerates wherein the nanoparticle agglomerates have an average volume based size of at least 100 nanometers as determined using light scattering via ISO 13320;C. a binder layer disposed on and in direct contact with said nanoparticle layer and comprising an oxidatively cured product of a silicon-based resin; andD. an outermost layer that is disposed opposite said substrate and on and in direct contact with said binder layer;wherein said hydrophobic article has a water contact angle of greater than or equal to 90 degrees as measured on said outermost layer of said hydrophobic article and determined using modified ASTM D5946-04.2. The hydrophobic article of wherein said outermost layer is covalently bonded to said binder layer.3. The hydrophobic article of wherein said outermost layer is free of covalent bonds to said binder layer.4. The hydrophobic article of wherein said silicon-based resin has a molecular weight from 600 to 150 claim 1 ,000 g/mol and has at least two silicon-bonded hydrogen groups per molecule.5. The hydrophobic article of wherein said silicon-based ...

Surface-independent, surface-modifying, multifunctional coatings and applications thereof

The present invention provides a surface-independent surface-modifying multifunctional biocoating and methods of application thereof. The method comprises contacting at least a portion of a substrate with an alkaline solution comprising a surface-modifying agent (SMA) such as dopamine so as to modify the substrate surface to include at least one reactive moiety. In another version of the invention, a secondary reactive moiety is applied to the SMA-treated substrate to yield a surface-modified substrate having a specific functionality.

LIQUID-REPELLENT MODIFIED SILICA COATED SURFACES

The invention provides a method to design and fabricate organically modified silica particles (Ormosils) and sustainable Ormosils-based omniphobic or superomniphobic surfaces using short chain fluorocarbon molecules. The disclosed Ormosils-based liquid-repellant surfaces possess superior liquid-repellency that is equivalent to long chain fluorocarbon-based surfaces, for both high surface tension liquids (e.g., water) and low surface tension liquids (e.g., oils and alcohols). 2. The silica particle of wherein the silica particle comprises more than about 5 wt % of G1.3. The silica particle of wherein each X is F.4. The silica particle of wherein Y is F.5. The silica particle of wherein J is —(CH)— and m is 2.7. A substrate coated with a plurality of silica particles according to wherein the surface of the coated substrate is liquid-repellant.8. The substrate of wherein the liquid-repellant surface is omniphobic or superomniphobic.9. The substrate of wherein the liquid repellant surface is superomniphobic claim 8 , and a liquid in contact with the superomniphobic surface has a contact angle of about 150 degrees or more and a roll off angle of about 10 degrees or less.11. The liquid-repellant surface of wherein the mole ratio is about 0.8 to about 2.0.12. The liquid-repellant surface of wherein A is a nonafluorohexyl(trialkoxy)silane.13. The liquid-repellant surface of wherein the modified silica particles have a diameter of about 0.001 micrometers to about 100 micrometers.14. The liquid-repellant surface of wherein the modified silica particles are less toxic than a corresponding silica particle formed from a compound of Formula A wherein n is more than 6.15. The liquid-repellant surface of wherein the modified silica particles have a shorter half-life claim 14 , or bioaccumulate to a lesser extent claim 14 , than a corresponding silica particle formed from a compound of Formula A wherein n is more than 3.17. The method of wherein the base is ammonium hydroxide.18. ...

LIQUIDS AND VISCOELASTIC MATERIAL REPELLENT AND ANTI-BIOFOULING COATINGS

A coated smooth surface of a substrate repels liquids and viscoelastic materials and can have anti-staining and anti-biofouling properties. The smooth surface can be coated by applying a chemical layer on the surface and a lubricant. Such coated surfaces are useful for use in toilets, urinals, or other devices for the processing of liquids and viscoelastic materials such as solid or semi-solid metabolic waste of human digestive system. Such coated surfaces can also be applied to windows for buildings or vehicles such as automobiles or camera lenses to repel liquids (e.g., rain), ice, frost, insect residues, and birds' feces. 1. A coating on a smooth surface of a substrate comprising a chemical layer anchored on the surface and a lubricant layer over the chemical layer , wherein surface substrate is not roughened and wherein the surface has an average roughness Rof less than about 1 μm.2. The coating of claim 1 , wherein the surface has an average roughness Rof less than about 100 nm.3. The coating of claim 1 , wherein the surface has an average roughness Rof less than about 1 nm.4. The coating of claim 1 , wherein the chemical layer comprises a polymerized silane or siloxane or both anchored on the surface of the substrate.5. The coating of claim 4 , wherein the chemical layer comprises a polydimethylsiloxane anchored on the surface of the substrate.6. The coating of claim 4 , wherein the lubricant is a perfluorinated oil or a silicone oil or a mineral oil or a plant oil or any combination thereof.7. The coating of claim 1 , wherein the lubricant is a perfluorinated oil or a silicone oil or a mineral oil or a plant oil or any combination thereof.8. The coating of claim 1 , wherein the coating is on a device for processing waste from human digestive system.9. The coating of claim 1 , wherein the substrate surface comprises ceramic or porcelain.10. A window made of glass comprising the coating of .11. A process for preparing a repellant surface claim 1 , the process ...

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort. 164-. (canceled)65. A silicone hydrogel contact lens , comprising:a silicone hydrogel bulk material covered with an outer surface hydrogel layer,{'sub': 'SiHy', 'wherein the silicone hydrogel bulk material comprises (i) repeating units derived from a silicone-containing vinylic monomer, a silicone-containing vinylic macromer, a silicone-containing prepolymer or combinations thereof and (ii) repeating units derived from a hydrophilic vinylic monomer, and has a first water content (designated as WC) of from about 10% to about 70% by weight,'}wherein the outer surface hydrogel layer comprises a crosslinked polymeric material which comprises poly(ethylene glycol) chains which are designated as PEG chains, andwherein the silicone hydrogel contact lens has a silicon atomic percentage of about 5% or less of total elemental percentage as measured by XPS analysis of the silicone hydrogel contact lens in dried state,wherein the silicone hydrogel contact lens, when being fully hydrated, has: an oxygen transmissibility of at least about 40 barrers/mm; an elastic modulus (or Young's Modulus) of from about 0.3 MPa to about 1.8 MPa; and an averaged water contact angle of about 80 degrees or less.66. The silicone hydrogel contact lens of claim 65 , wherein the PEG chains are derived from at least one member selected from the group consisting of: PEG-N H; HN-PEG-NH; HN-PEG-COOH; a multi-arm PEG with one or more amino groups; a PEG dendrimer with one or more amino groups; and combinations thereof.67. The silicone ...

Synthetic Surfaces with Robust and Tunable Underwater Superoleophobicity

The present invention provides multilayer polymer films, materials and coatings which exhibit robust underwater superoleophobicity and have remarkable structural functional tolerance to a broad range of physical, chemical, and environmental challenges encountered by surfaces deployed in aqueous or aquatic environments. These materials can be fabricated on surfaces of arbitrary shape, size, and composition and provide straightforward means to manipulate surface chemistry and fine-tune other useful features of the interfacial behavior (e.g., underwater oil-adhesiveness). These materials address key obstacles to the application of non-wetting surfaces and anti-fouling ‘super-phobic’ materials in practical, real-world scenarios. 1. A method for preventing or reducing fouling by hydrophobic materials on a surface comprising the steps of:depositing an anti-fouling superoleophobic material on said surface, wherein said superoleophobic material comprises a multilayer polymer film attached to said substrate, said multilayer film comprising one or more bilayers,wherein each bilayer comprises a first polymer layer covalently linked with a second polymer layer, and wherein said multilayer polymer film attached to said substrate has nanoscale porosity and is non-wetting to oils when covered with an aqueous liquid.2. The method of wherein said multilayer polymer film comprises 10 or more bilayers.3. The method of wherein said material is superoleophobic at a pH range from 1 to 11.5. The method of wherein the first polymer layer comprises a polymer selected from the group consisting of poly(vinyl-4 claim 1 ,4-dimethylazlactone) claim 1 , poly(2-vinyl-4 claim 1 ,4-dimethyl-2-oxazolin-5-one) claim 1 , poly(2-isopropenyl-4 claim 1 ,4-dimethyl-2-oxazolin-5-one) claim 1 , poly(2-vinyl-4 claim 1 ,4-diethyl-2-oxazolin-5-one) claim 1 , poly(2-vinyl-4-ethyl-4-methyl-2-oxazolin-5-one) claim 1 , poly(2-vinyl-4-dodecyl-4-methyl-2-oxazolin-5-one) claim 1 , poly(2-vinyl-4 claim 1 ,4- ...

An Erodible Antifouling Coating Composition

An erodible antifouling coating composition for application, for example,to ship's hulls to potentially prevent the adhesion and build up of fouling agents on the hull is described. The coating composition comprises an erodible binder system excluding a triorgano tin based binder; optionally, one or more antifouling agents; and at least one silicone oil. A process for producing the composition, a substrate coated with the composition, and a process of coating a substrate with the composition are also described.

ANTIFOULING COATING FILM AND METHOD OF MANUFACTURING SAME, WATER CONTACTING STRUCTURE WITH ANTIFOULING COATING FILM, AND ANTIFOULING TAPE AND METHOD OF MANUFACTURING SAME

The present invention provides an antifouling coating film that exhibits suppressed elution of an organism repellent in exposure to a dynamic water flow in water and exhibits an antifouling property for a long time and a method of manufacturing the same, a water-contacting structure with an antifouling coating film, and an antifouling tape and a method of manufacturing the same, and relates to an antifouling coating film containing a binder (A) and an organism repellent (B), having a riblet structure on a surface thereof, the organism repellent (B) containing one or more kind selected from the group consisting of copper pyrithione, zinc pyrithione, 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile, and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, and a method of manufacturing the same. 1. An antifouling coating film comprising a binder (A) and an organism repellent (B) , having a riblet structure on a surface thereof ,the organism repellent (B) comprising one or more kind selected from the group consisting of copper pyrithione, zinc pyrithione, 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile, and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one.2. The antifouling coating film according to claim 1 , wherein the antifouling coating film formed with an antifouling coating composition comprising a binder forming component (a) and the organism repellent (B).3. The antifouling coating film according to claim 2 , wherein the binder forming component (a) comprises a curable organopolysiloxane.4. The antifouling coating film of claim 1 , wherein the antifouling coating film and/or the antifouling coating composition further comprises a slip agent (C).5. The antifouling coating film according to claim 4 , wherein the slip agent (C) comprises one or more kind selected from the group consisting of a silicone oil (C1) and a polymer (C2) comprising a constituent unit derived from a hydrophilic group-containing unsaturated monomer.6. The ...

Microgroove Structure For Controlling Frost Nucleation and Manufacturing Method Thereof

The present disclosure illustrates a microgroove structure for controlling frost nucleation, and the microgroove structure has a substrate which has a non-rough surface. The non-rough surface has one or more microgrooves extending along a first direction. The microgroove structure for controlling frost nucleation has nice anti-icing and deicing performances. 1. A microgroove structure for controlling frost nucleation , comprising:a substrate, having a smooth surface without holes and protrusions, and having one or more microgrooves extending along a first direction on the smooth surface,wherein along a second direction which is perpendicular to the first direction, the two adjacent microgrooves have a distance therebetween,wherein the distance is a center-to-center spacing of the two adjacent microgrooves, and the distance is 125 μm, 165 μm or 250 μm,wherein a width of the microgroove is 7 μm.2. (canceled)3. The microgroove structure for controlling frost nucleation according to claim 1 , wherein the microgroove is a V-shaped microgroove or a trapezoidal microgroove.4. The microgroove structure for controlling frost nucleation according to claim 1 , wherein a hydrophobic layer is coated on the smooth surface.56-. (canceled)7. The microgroove structure for controlling frost nucleation according to claim 4 , wherein the substrate is a silicon substrate and the hydrophobic layer is a PTFE layer.8. The microgroove structure for controlling frost nucleation according to claim 1 , wherein a droplet contact angle of the smooth surface is about 135 degrees through 145 degrees.9. A manufacturing method of a microgroove structure for controlling frost nucleation claim 1 , comprising:providing a substrate having a smooth surface without holes and protrusions; andforming at least one microgroove extending along a first direction on the smooth surface,wherein along a second direction which is perpendicular to the first direction, the two adjacent microgrooves have a distance ...

SILICONE HYDROGEL LENS WITH A CROSSLINKED HYDROPHILIC COATING

The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave. 120-. (canceled)21. A contact lens packaging solution , which is an aqueous solution comprising at least one buffering agent in an amount sufficient to maintain a pH of from about 6.0 to about 8.5 and from about 0.01% to about 2% by weight of a water-soluble and thermally-crosslinkable hydrophilic polymeric material;wherein the water-soluble and thermally-crosslinkable hydrophilic polymeric material which comprises (i) from about 20% to about 95% by weight of first polymer chains derived from an epichlorohydrin-functionalized polyamine or polyamidoamine, (ii) from about 5% to about 80% by weight of hydrophilic moieties or second polymer chains derived from at least one hydrophilicity-enhancing agent having at least one reactive functional group selected from the group consisting of amino group, carboxyl group, thiol group, and combination thereof, and (iii) positively-charged azetidinium groups which are parts of the first polymer chains or pendant or terminal groups covalently attached to the ...

NON-FLUORINATED WATER-BASED SUPERHYDROPHOBIC COMPOSITIONS

A superhydrophobic non-fluorinated composition includes a hydrophobic matrix component free of fluorine, a hydrophilic filler particles, wherein the filler particles are metal oxide nanoparticles, and water, wherein the hydrophobic component is in an aqueous dispersion. Also, a superhydrophobic non-fluorinated composition includes a hydrophobic polymer free of fluorine, a titanium dioxide nanoparticle filler particle, and water. In addition, a superhydrophobic non-fluorinated composition includes a hydrophobic polymer free of fluorine, wherein the hydrophobic polymer includes a polyolefin, titanium dioxide nanoparticles as filler, wherein the titanium dioxide nanoparticles are rutile titanium dioxide, anatase titanium dioxide, or a mixture of rutile and anatase titanium dioxide, and water. 1. A superhydrophobic non-fluorinated composition comprising:a hydrophobic matrix component free of fluorine;hydrophilic filler particles, wherein the filler particles are metal oxide nanoparticles; andwater, wherein the hydrophobic component is in an aqueous dispersion.2. The superhydrophobic composition of claim 1 , wherein the metal oxide nanoparticle is titanium dioxide.3. The superhydrophobic composition of claim 1 , wherein the metal oxide nanoparticle is rutile titanium dioxide claim 1 , anatase titanium dioxide claim 1 , or a mixture of rutile and anatase titanium dioxide.4. The superhydrophobic composition of claim 1 , wherein the metal oxide nanoparticle is mixed-phase titanium dioxide.5. The superhydrophobic composition of claim 4 , wherein the mixed-phase titanium dioxide has an average particle size of 21 nm.6. The superhydrophobic composition of claim 1 , wherein the filler particle is configured to form a protective bond with the hydrophobic component.7. The superhydrophobic composition of claim 1 , wherein the ratio of the filler particle to the hydrophobic component is at least 1.8. The superhydrophobic composition of claim 1 , wherein the hydrophobic component is ...

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort. 164-. (canceled)66. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.67. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.68. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.69. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 0.5 μm to about 12.5 μm.70. The silicone hydrogel contact lens of claim 69 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.71. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 1 μm to about 10 μm.72. The silicone hydrogel contact lens of claim 71 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.73. The silicone hydrogel contact lens of claim 65 , wherein the PEG chains which are derived from at least one member selected from the group consisting of: PEG-NH; PEG-SH; PEG-COOH; HN-PEG-NH; HOOC-PEG-COOH; HS-PEG-SH; HN-PEG-COOH; HOOC-PEG-SH; HN-PEG-SH; a multi-arm PEG with one or more amino claim 65 , carboxyl or thiol groups; a PEG dendrimer with one or more amino claim 65 , carboxyl or thiol groups; and combinations thereof.74. The silicone hydrogel contact lens of wherein ...

CLEAR-COATED STAINLESS STEEL SHEET

This clear-coated stainless steel sheet () includes a stainless steel sheet (), and a clear-coated film () formed on at least one surface () of the stainless steel sheet () and having an average film thickness of 0.05 μm or more and 3.00 μm or less. 1. A clear-coated stainless steel sheet , comprising:a stainless steel sheet; anda clear-coated film formed on at least one surface of the stainless steel sheet and having an average film thickness of 0.05 μm or more and 3.00 μm or less.2. The clear-coated stainless steel sheet according to claim 1 ,wherein a surface of the clear-coated film is an uneven surface,an interval between two adjacent protruding portions on the uneven surface is 50 μm or more and 500 μm or less, anda height difference between a protruding portion and a recessed portion adjacent to each other on the uneven surface is 2.00 μm or less.3. The clear-coated stainless steel sheet according to claim 1 , wherein a contact angle between a surface of the clear-coated film and pure water claim 1 , a halide aqueous solution claim 1 , or seawater is 90° or more.4. The clear-coated stainless steel sheet according to claim 1 , wherein the clear-coated film contains organic particles.5. The clear-coated stainless steel sheet according to claim 2 , wherein a contact angle between a surface of the clear-coated film and pure water claim 2 , a halide aqueous solution claim 2 , or seawater is 90° or more.6. The clear-coated stainless steel sheet according to claim 2 , wherein the clear-coated film contains organic particles.7. The clear-coated stainless steel sheet according to claim 3 , wherein the clear-coated film contains organic particles. The present invention relates to a clear-coated stainless steel sheet having corrosion resistance.The present application claims priority on Japanese Patent Application No. 2019-63335 filed on Mar. 28, 2019, the content of which is incorporated herein by reference.Due to the demand for maintenance-free operation in the ...

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort. 164-. (canceled)66. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.67. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.68. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.69. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 0.5 μm to about 12.5 μm.70. The silicone hydrogel contact lens of claim 69 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.71. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 1 μm to about 10 μm.72. The silicone hydrogel contact lens of claim 71 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.73. The silicone hydrogel contact lens of claim 65 , wherein the reactive vinylic monomer is selected from the group consisting of amino-C-Calkyl (meth)acrylate claim 65 , C-Calkylamino-C-Calkyl (meth)acrylate claim 65 , allylamine claim 65 , vinylamine claim 65 , amino-C-Calkyl (meth)acrylamide claim 65 , C-Calkylamino-C-Calkyl (meth)acrylamide claim 65 , acrylic acid claim 65 , C-Calkylacrylic acid claim 65 , N claim 65 ,N-2-acrylamidoglycolic acid claim 65 , and combinations ...

Transparent Durable Superhydrophobic Ceramic Coating

A superhydrophobic ceramic coating that is transparent and durable includes a dispersion of a multiplicity of silica nanoparticles stacked to form a topography that is rough that is infused with and conformally coated with a sol-gel glass matrix that has a fluoroalkyl silane or an alkyl silane monolayer on the surface of the coating. The silica nanoparticles do not scatter light to a large extent as they are sufficiently small and free of aggregation. The sol-gel glass is formed from a trialkoxysilane precursor and applied to the stacked silica nanoparticles to retain the rough topography of the deposited nanoparticles. 1. A superhydrophobic ceramic coating , comprising a dispersion of a multiplicity of silica nanoparticles wherein said nanoparticles are stacked to form a topography that is rough and bound within a sol-gel glass matrix that fills voids between said nanoparticles and conforms to said topography of said dispersion and wherein said sol-gel glass matrix has an air surface covered with a fluoroalkyl silane or an alkyl silane monolayer.2. The superhydrophobic ceramic coating according to claim 1 , wherein said silica nanoparticles are 20 to 100 nm in cross-section.3. The superhydrophobic ceramic coating according to claim 1 , wherein said silica nanoparticles are spherical in shape.4. The superhydrophobic ceramic coating according to claim 1 , wherein said sol-gel glass is a polycondensation product of a tetraalkoxysilane.5. The superhydrophobic ceramic coating according to claim 1 , wherein said sol-gel glass is a polycondensation product of a tetraethoxysilane (TEOS).6. The superhydrophobic ceramic coating according to claim 1 , wherein said fluoroalkyl silane has the structure FC(CF)CHCHSi where x is 2 to 20.7. The superhydrophobic ceramic coating according to claim 1 , wherein said superhydrophobic coating is transparent claim 1 , with a transmittance of at least 80%.8. The superhydrophobic ceramic coating according to claim 1 , wherein said ...

LAMINAR FLOW COATING FOR AERODYNAMIC SURFACES

A laminar flow coating for aerodynamic surfaces is provided. The laminar flow coating may comprise a base composition, such as an epoxy composition, a fluoropolyurethane composition, or a polyurethane composition. A filler composition may be dispersed within the base composition. The filler composition may comprise at least one of a nanomaterial composition or a microfiller composition. The filler composition may be doped with a hydrophobic surface modifier prior to being dispersed within the base composition. 1. A laminar flow coating , comprising:a base composition comprising at least one of an epoxy composition, a fluoropolyurethane composition, or a polyurethane composition; anda filler composition comprising at least one of a nanomaterial composition or a microfiller composition, wherein the filler composition is doped with a hydrophobic surface modifier and is dispersed within the base composition.2. The laminar flow coating of claim 1 , wherein the nanomaterial composition comprises at least one of a graphene nanoplatelet claim 1 , a graphene nanosheet claim 1 , a metal oxide particulate claim 1 , a nanoclay claim 1 , or a hexagonal boron nitride nanosheet.3. The laminar flow coating of claim 1 , wherein the microfiller composition comprises at least one of a metal oxide claim 1 , polytetrafluoroethylene (PTFE) claim 1 , fluoroethylene propylene (FEP) claim 1 , polyvinylidene fluoride (PVDF) claim 1 , or fluoroalkoxy polymer.4. The laminar flow coating of claim 1 , wherein the hydrophobic surface modifier comprises an organic molecule or an inorganic molecule containing a hydrolysable unit and a long chain alkane unit that can be at least one of hydrogenated or fluorinated.5. The laminar flow coating of claim 4 , wherein the hydrophobic surface modifier comprises at least one of an organic ligand or an inorganic ligand.6. The laminar flow coating of claim 5 , wherein the organic ligand comprises at least one of dodecylamine claim 5 , perfluorododecylamine ...

LOW-FLUORINE COMPOSITIONS WITH CELLULOSE FOR GENERATING SUPERHYDROPHOBIC SURFACES

A composition configured to create a superhydrophobic surface includes a fluorinated hydrophobic component dispersible in an aqueous dispersion; cellulosic elements of a size ranging from 100 nm to 100 μm; and water. The hydrophobic component is selected from the group consisting of fluorinated polymers, perfluorinated polymers, and mixtures thereof; and the cellulosic elements are micro- and nano-fibrillated cellulose. A disposable absorbent article includes a substrate having a surface, the surface including a composition including a fluorinated hydrophobic component dispersible in an aqueous dispersion; cellulosic elements of a size ranging from 100 nm to 100 μm; and water, wherein the surface exhibits a contact angle greater than 150 degrees. 1. A composition configured to create a superhydrophobic surface , the composition comprising:a fluorinated hydrophobic component dispersible in an aqueous dispersion;cellulosic elements of a size ranging from 100 nm to 100 μm; andwater.2. The composition of claim 1 , wherein the cellulosic elements are particles and/or fibers.3. The composition of claim 1 , wherein the composition is configured to be applied to a surface such that the surface exhibits a contact angle greater than 150 degrees.4. The composition of claim 1 , wherein the composition is configured to be applied to a surface such that the surface exhibits a roll off angle less than 10 degrees.5. The composition of claim 1 , wherein the surface exhibits contact angle hysteresis less than 20 degrees.6. The composition of claim 1 , wherein the fluorinated hydrophobic component is a fluorinated ethylene-acrylic acid co-polymer.7. The composition of claim 1 , wherein the cellulosic elements are micro- and nano-fibrillated cellulose.8. The composition of claim 1 , wherein the hydrophobic component is selected from the group consisting of fluorinated polymers claim 1 , perfluorinated polymers claim 1 , and mixtures thereof.9. The composition of claim 1 , wherein the ...

PROCESS FOR PREPARING A SURFACE-MODIFIED MATERIAL

The present invention relates to a method of manufacturing a surface-modified material, wherein a substrate, which comprises on at least one side a coating layer comprising a salifiable alkaline or alkaline earth compound, is treated with a liquid composition comprising an acid to form at least one surface-modified region on the coating layer. 1. A method of manufacturing a surface-modified material , comprising the following steps:a) providing a substrate, wherein the substrate comprises on at least one side a coating layer comprising a salifiable alkaline or alkaline earth compound, andb) applying a liquid treatment composition comprising an acid onto at least one region of the coating layer to form at least one surface-modified region on and/or within the coating layer.2. The method of claim 1 , wherein the substrate of step a) is prepared byi) providing a substrate,ii) applying a coating composition comprising a salifiable alkaline or alkaline earth compound on at least one side of the substrate to form a coating layer, andiii) drying the coating layer.3. The method of claim 1 , wherein the substrate is selected from the group comprising paper claim 1 , cardboard claim 1 , containerboard claim 1 , plastic claim 1 , cellophane claim 1 , textile claim 1 , wood claim 1 , metal claim 1 , glass claim 1 , mica plate claim 1 , nitrocellulose claim 1 , or concrete claim 1 , preferably paper claim 1 , cardboard claim 1 , containerboard claim 1 , or plastic.4. The method of claim 1 , wherein the salifiable alkaline or alkaline earth compound is an alkaline or alkaline earth oxide claim 1 , an alkaline or alkaline earth hydroxide claim 1 , an alkaline or alkaline earth alkoxide claim 1 , an alkaline or alkaline earth methylcarbonate claim 1 , an alkaline or alkaline earth hydroxycarbonate claim 1 , an alkaline or alkaline earth bicarbonate claim 1 , an alkaline or alkaline earth carbonate claim 1 , or a mixtures thereof claim 1 , preferably the salifiable alkaline or ...

METHOD OF MANUFACTURING DEW FORMATION PREVENTING MEMBER AND REFRIGERATOR AND EVAPORATOR HAVING DEW FORMATION PREVENTING MEMBER

A method of manufacturing a dew formation preventing member having a super water repellent surface of the present invention comprises the steps of: mixing a particular paint and polytetrafluorethylene at a predetermined ratio; particulate painting the mixed paint on a substrate surface; and heat treating the particulate painted substrate. A method of manufacturing a dew formation preventing member having a super water repellent surface according to another aspect of the present invention comprises the steps of: immersing a substrate in an electro deposition paint, and applying a direct current to conduct electro deposition painting; heat treating the substrate that has undergone the electro deposition painting; and plasma treating the surface of the substrate that has undergone the electro deposition painting. 1. A method for manufacturing a dew formation preventing member , the method comprising:electro-deposition painting comprising immersing a substrate in an electro-deposition paint and applying a direct current voltage to the substrate;heat treating the substrate painted with the electro-deposition paint; andplasma treating a surface of the substrate painted with the electro-deposition paint.2. The method according to claim 1 , wherein electro-deposition painting comprises electro-deposition painting with an anode electro-deposition paint comprising melamine formaldehyde claim 1 , and a cathode electro-deposition paint comprising aromatic polyurethane.3. The method according to claim 1 , wherein applying the direct current voltage comprises applying the direct current voltage in a range of 20V to 40V for 5 minutes to 15 minutes.4. The method according to claim 1 , wherein heat treating comprises heating the substrate by a heating gun to harden the electro-deposition paint on the substrate.5. The method according to claim 4 , wherein heat treating comprising heating the substrate to a temperature in a range of 250° C. to 350° C.6. The method according to claim 1 ...

COMPOSITION OF HYDROPHILIC PAINTED SURFACE

Paint configured to provide a hydrophilic paint surface comprising a paint base and a texture imprinting additive (TIA) that provides sacrificial particles upon drying of the paint. Loss of the sacrificial particles increases roughness and reduces the contact angle with water, providing a hydrophilic surface that is wettable and hence self-cleaning. Also described are specific types of TIA, methods of making the paint, methods of making a hydrophilic surface, and kits. 1. A paint , which is configured to provide a hydrophilic painted surface , comprising:a paint base;a texture imprinting additive (TIA), wherein the TIA is configured to provide sacrificial particles upon drying of the paint;wherein the TIA comprises one or more of a water soluble solid, a photodegrading material, an oxygen-degrading material, or a combination thereof;wherein the water soluble solid comprises at least one of a sugar, an organic salt, an inorganic salt, or a combination thereof;wherein the TIA has an average particle size in a range from about 0.001 μm to about 200 μm.23-. (canceled)4. The paint of claim 1 , wherein the water-soluble solid is selected from a group consisting of a sucrose claim 1 , a hydroxyapatite claim 1 , a magnesium sulfate hydrate claim 1 , a hydrated calcium sulphate claim 1 , an acid ammonium fluoride claim 1 , an ammonium bifluoride claim 1 , a sodium chloride claim 1 , a sodium nitrate claim 1 , a potassium nitrate claim 1 , a sodium carbonate claim 1 , a sodium bicarbonate claim 1 , a sodium acetate claim 1 , a copper phosphate dihydrate claim 1 , and a combination thereof.5. The paint of claim 1 , wherein the water-soluble solid is selected from a group consisting of a sulfate claim 1 , a phosphate claim 1 , a metal oxide claim 1 , a carbonate claim 1 , a bicarbonate claim 1 , a nitrate claim 1 , an acetate claim 1 , an ammonium claim 1 , a fluoride salt claim 1 , and a combination thereof.67-. (canceled)8. The paint of claim 1 , wherein the TIA comprises ...

APPARATUS AND METHODS EMPLOYING LIQUID-IMPREGNATED SURFACES

In certain embodiments, the invention is directed to apparatus comprising a liquid-impregnated surface, said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin, and methods thereof. In some embodiments, one or both of the following holds: (i) 0<φ≦0.25, where φ is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and (ii) S<0, where Sis spreading coefficient, defined as γ−γ−γ, where γ is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid. 1. An article comprising a liquid-impregnated surface , said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin , wherein one or both of the following holds:(i) 0<φ≦0.25, where φ is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and{'sub': ow(a)', 'ow(a)', 'wa', 'wo', 'oa, '(ii) S<0, where Sis spreading coefficient, defined as γ−γ−γ, where γ is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid.'}2. The article of claim 1 , wherein 0<φ≦0.25.3. The article of claim 2 , wherein 0<φ≦0.10.4. The article of claim 1 , wherein 0.001<φ≦0.25.5. The article of claim 1 , wherein 0.001<φ≦0.10.6. The article of claim 1 , wherein S<0.7. The article of claim 1 , wherein the impregnating liquid comprises an ionic liquid.8. The article of claim 1 , wherein the impregnating liquid comprises at least one member selected from the group consisting of tetrachloroethylene (perchloroethylene) claim 1 , phenyl isothiocyanate (phenyl mustard oil) claim 1 ...

METHOD OF PROVIDING A HYDROPHOBIC COATING USING NON-FUNCTIONALIZED NANOPARTICLES

An anti-corrosive coating for a substrate surface comprises an insulation layer positioned over the substrate and a cured epoxy layer positioned on the insulation layer, the cured epoxy layer including a plurality of nanoparticles having diameters within a range of about 200 nm to about 350 nm. Water droplets positioned on an external surface of the cured epoxy layer form a contact angle of at least 130 degrees. 1. An anti-corrosive coating for a substrate surface comprising:an insulation layer positioned over the substrate; anda cured epoxy layer positioned on the insulation layer, the cured epoxy layer including a plurality of nanoparticles having diameters within a range of about 200 nm to about 350 nm,wherein water droplets positioned on an external surface of the cured epoxy layer form a contact angle of at least 130 degrees.2. The anti-corrosive coating of claim 1 , wherein the plurality of nanoparticles is composed of silica.3. The anti-corrosive coating of claim 1 , wherein the substrate is a metallic surface of a pipe.4. The anti-corrosive coating of claim 1 , wherein water droplets positioned on an external surface of the cured epoxy layer form a contact angle of at least 134 degrees.5. The anti-corrosive coating of claim 1 , wherein the plurality of nanoparticles is composed of a metal oxide other than silica.6. A method of increasing the resistance of a structure covered with insulation to corrosion under insulation (CUI) claim 1 , the method comprising:preparing a powder composed of nanoparticles having diameters in a range of about 200 nm to 350 nm;depositing a layer of epoxy material over the insulation on the structure; andembedding the powder of nanoparticles within the deposited epoxy material;wherein the upon curing of the epoxy material, the nanoparticles become set in position within the layer of epoxy.7. The method of claim 6 , wherein the powder of nanoparticles is prepared using the Stober process.8. The method of claim 6 , wherein the ...

Tailorable surface topology for antifouling coatings

Embodiments are directed to a method of making an antifouling and bactericidal coating with tailorable surface topology. The method includes depositing a layer of branched polyethyleneimine (BPEI) and diamino-functionalized poly(propylene oxide) (PPO) in a mixture of water and organic solvent on a substrate to form a layer of BPEI/PPO. The method includes depositing a layer of glyoxal in a water-containing solution on the layer of BPEI/PPO. The method further includes curing the layer of BPEI/PPO and layer of glyoxal to form a homogenous, glyoxal crosslinked BPEI/PPO coating, where the curing induces local precipitation and alteration of the glyoxal crosslinked BPEI/PPO coating to provide a textured surface.

Optically Transparent Superhydrophobic Thin Film

A composition that is easily applied, clear, well-bonded, and superhydrophobic is disclosed. In one aspect, the composition includes a hydrophobic fluorinated solvent, a binder comprising a hydrophobic fluorinated polymer, and hydrophobic fumed silica nanoparticles. Also disclosed is a structure including a substrate coated with the composition, as well as a method for making the composition and a method of coating a substrate with the composition.

Antifouling materials

The invention provided herein presents a novel family of antifouling agents based on hydroxylated and fluorinated compounds.

Fabricating Porous Metallic Coatings Via Electrodeposition and Compositions Thereof

A method is provided for creating a porous coating on a surface of a substrate by electrodeposition. The substrate is a part of the cathode. An anode is also provided. A coating is deposited or disposed on the surface by applying a voltage that creates a plurality of porous structures on the surface to be coated. Continuing to apply a voltage creates additional porosity and causes portions of the attached porous structures to detach. A covering layer is created by applying a voltage that creates a thin layer that covers the attached porous structures and the detached portions which binds the porous structures and detached portions together. 1. An article , comprising: a surface having at least one region; and a porous coating on said at least one region of said surface , wherein the coating comprises a plurality of porous structures attached to said at least one region of said surface and at least one layer covering said porous structures.2. The article of wherein between said coating and said surface claim 1 , additionally applying one or more intermediate bonding layers between said coating and said surface.3. The article of wherein said coating and said surface are different materials claim 2 , and said one or more bonding layers are made of materials different from the materials of said coating and said surface.4. The article of claim 1 , wherein said coating is applied to said surface by electrodeposition5. The article of wherein said porous structures and said covering layer are separately selected from metals claim 1 , metal alloys claim 1 , metallic compounds claim 1 , conductive polymers or any combination thereof.6. The article of wherein said surface is a metal claim 1 , metal alloy claim 1 , metallic compound claim 1 , conductive polymer or any combination thereof.7. The article of wherein said coating and said surface are the same material.8. The article of wherein said coating and said surface are different materials.9. The article of wherein said ...

Stain repellent and voc eliminating coatings and use thereof

A coating dispersion or building article can include titanium dioxide, and a dihydrazide. The coating dispersion or building article can further include calcium carbonate, calcined aluminum silicate, acrylic polymers, and a fluoroalkyl polymer

Functional coatings comprising microspheres and nanofibers

Described herein are coating dispersions and coatings based on hydrophobic nanofiber and silicone microbeads dispersed in a hydrophobic polymer matrix that provide a damage tolerant hydrophobic, superhydrophobic, and/or snowphobic capability. Methods of creating snow resistant materials by employing the aforementioned coatings are also described.

SURFACE STRUCTURED ARTICLES AND METHODS OF MAKING THE SAME

Surface structured articles comprising a polymer matrix and a dispersed phase, the article having first and second opposed major surfaces, at least a portion of the first major surface is a microstructured, anisotropic surface comprises features having at least one dimension in a range from 1 micrometer to 500 micrometers, wherein the dispersed phase comprises an antimicrobial material, and wherein at least a portion of the dispersed phase is present on the microstructured, anisotropic surface. Surface structured articles are useful, for example, for marine applications (e.g., surfaces in contact with water (e.g., fresh water, ocean water)) such as boats, ships, piers, oil rigs, decks, and roofing materials. 118-. (canceled)19. A surface structured article comprising a polymer matrix and a dispersed phase , the article having first and second opposed major surfaces , at least a portion of the first major surface is a microstructured , anisotropic surface comprises features having at least one dimension in a range from 1 micrometer to 500 micrometers , wherein the dispersed phase comprises an antimicrobial material , and wherein at least a portion of the dispersed phase is present on the microstructured , anisotropic surface.20. The surface structured article of claim 19 , wherein the antimicrobial material comprises at least one of copper claim 19 , cobalt claim 19 , nickel claim 19 , zinc claim 19 , silver claim 19 , gold claim 19 , platinum claim 19 , copper oxide claim 19 , cobalt oxide claim 19 , nickel oxide claim 19 , zinc oxide claim 19 , silver oxide claim 19 , tin oxide claim 19 , tantalum oxide claim 19 , zirconium oxide claim 19 , titanium dioxide claim 19 , copper silicate claim 19 , cobalt silicate claim 19 , nickel silicate claim 19 , silver silicate claim 19 , gold silicate claim 19 , platinum silicate claim 19 , zinc silicate claim 19 , zirconium silicate claim 19 , copper sulfide claim 19 , cobalt sulfide claim 19 , nickel sulfide claim 19 , silver ...

(METH)ACRYLIC COPOLYMER, POLYMER SOLUTION, POLYMER-CONTAINING COMPOSITION, ANTI-FOULING COATING COMPOSITION, AND METHOD FOR PRODUCING (METH)ACRYLIC COPOLYMER

First embodiment of a (meth)acrylic copolymer in the present invention includes following: a (meth)acrylic copolymer having at least one kind of constitutional unit selected from the group consisting of a constitutional unit (A1) having at least one kind of structure (I) selected from the group consisting of structures represented by the following formula (1), formula (2), or formula (3) and a constitutional unit (A2) having a triorganosilyloxycarbonyl group and a constitutional unit (B) derived from a macromonomer (b): 2. The polymer-containing composition according to claim 1 ,{'sup': '4', 'wherein a viscosity of the polymer solution at 25° C. is 5×10mPa·s or less.'}5. An anti-fouling coating composition comprising the polymer-containing composition according to .6. The anti-fouling coating composition according to claim 5 , further comprising an anti-fouling agent.7. The anti-fouling coating composition according to claim 6 , wherein the anti-fouling agent contains at least one kind selected from the group consisting of cuprous oxide claim 6 , 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile claim 6 , pyridine-triphenylborane claim 6 , and medetomidine.8. The anti-fouling coating composition according to claim 5 , wherein a VOC content is 500 g/L or less. This application is a continuation application of prior U.S. application Ser. No. 15/922,339, filed Mar. 15, 2018, the disclosure of which is incorporated herein by reference in its entirety. U.S. application Ser. No. 15/922,339 is a continuation of PCT/JP2016/078242, filed Sep. 26, 2016, the disclosure of which is incorporated herein by reference in its entirety. U.S. application Ser. No. 15/922,339 claims the benefit of priority of the prior Japanese Patent Application No. 2015-188349 filed in Japan on Sep. 25, 2015 and the prior Japanese Patent Application No. 2015-190946 filed in Japan on Sep. 29, 2015, the entire contents of which are incorporated herein by reference.The present ...

STRUCTURAL COATINGS WITH DEWETTING AND ANTI-ICING PROPERTIES, AND COATING PRECURSORS FOR FABRICATING SAME

Variations of this invention provide durable, impact-resistant structural coatings that have both dewetting and anti-icing properties. The coatings in some embodiments possess a self-similar structure that combines a low-cost matrix with two feature sizes that are tuned to affect the wetting of water and freezing of water on the surface. Dewetting and anti-icing performance is simultaneously achieved in a structural coating comprising multiple layers, wherein each layer includes (a) a continuous matrix; (b) discrete templates dispersed that promote surface roughness to inhibit wetting of water; and (c) nanoparticles that inhibit heterogeneous nucleation of water. These structural coatings utilize low-cost, lightweight, and environmentally benign materials that can be rapidly sprayed over large areas using convenient coating processes. The presence of multiple layers means that if the surface is damaged during use, freshly exposed surface will expose a coating identical to that which was removed, for extended lifetime. 1. A structural coating that inhibits wetting and freezing of water , said structural coating comprising a plurality of layers , wherein each layer includes:(a) a substantially continuous matrix comprising a hardened material;(b) a plurality of discrete templates dispersed within said matrix, wherein said discrete templates are chemically different than said continuous matrix;(c) porous voids surrounding at least a portion of said discrete templates; and(d) a plurality of nanoparticles.2. The structural coating of claim 1 , wherein said discrete templates are uniformly dispersed within said matrix.3. The structural coating of claim 1 , wherein at least some of said discrete templates are anisotropic.4. The structural coating of claim 1 , wherein at least some of said discrete templates are geometrically asymmetric.5. The structural coating of claim 1 , wherein said structural coating has a void density from about 10to about 10voids per cm.6. The ...

APPARATUS AND METHODS EMPLOYING LIQUID-IMPREGNATED SURFACES

In certain embodiments, the invention is directed to apparatus comprising a liquid-impregnated surface, said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin, and methods thereof. In some embodiments, one or both of the following holds: (i) 0<φ≦0.25, where φ is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and (ii) S<0, where Sis spreading coefficient, defined as γ−γ−γ, where γ is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid. 1. An article comprising a liquid-impregnated surface , said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to stably contain the impregnating liquid therebetween or therewithin , wherein one or both of the following holds:(i) 0<φ≦0.25, where φ is a representative fraction of the projected surface area of the liquid-impregnated surface corresponding to non-submerged solid at equilibrium; and{'sub': ow(a)', 'ow(a)', 'wa', 'wo', 'oa, '(ii) S<0, where Sis spreading coefficient, defined as γ−γ−γ, where γ is the interfacial tension between the two phases designated by subscripts w, a, and o, where w is water, a is air, and o is the impregnating liquid.'}2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. The article of claim 1 , wherein the impregnating liquid comprises an ionic liquid.8. The article of claim 1 , wherein the impregnating liquid comprises at least one member selected from the group consisting of tetrachloroethylene (perchloroethylene) claim 1 , phenyl isothiocyanate (phenyl mustard oil) claim 1 , bromobenzene claim 1 , iodobenzene claim 1 , o-bromotoluene claim 1 , alpha-chloronaphthalene claim 1 , alpha-bromonaphthalene claim 1 , acetylene tetrabromide ...

CONTROLLED LIQUID/SOLID MOBILITY USING EXTERNAL FIELDS ON LUBRICANT-IMPREGNATED SURFACES

A method for precise control of movement of a motive phase on a lubricant-impregnated surface includes providing a lubricant-impregnated surface, introducing the motive phase onto the lubricant-impregnated surface, and exposing the droplets to an electric and/or magnetic field to induce controlled movement of the droplets on the surface. The lubricant-impregnated surface includes a matrix of solid features spaced sufficiently close to stably contain the impregnating lubricant therebetween or therewithin. The motive phase is immiscible or scarcely miscible with the impregnating lubricant. 1. A method for controlling movement of a motive phase (e.g. , liquid droplets , liquids , solids , semi-solids , films) on a liquid-impregnated surface , the method comprising:providing a liquid-impregnated surface, said surface comprising an impregnating liquid and a matrix of solid features spaced sufficiently close to contain (e.g., stably contain) the impregnating liquid therebetween or therewithin;introducing the motive phase onto the surface (e.g., wherein introducing the motive phase (e.g., liquid droplets) onto the surface comprises allowing the motive phase (e.g., liquid droplets) to form on the surface, e.g., via condensation), the motive phase comprising (or consisting essentially of) a phase that is immiscible with (or only scarcely miscible with) the impregnating liquid; andexposing the motive phase to an electric field and/or a magnetic field to induce controlled movement of the motive phase on the surface.2. The method of claim 1 , further comprising applying a non-uniform electric field (e.g. claim 1 , above the corona discharge threshold or below the corona discharge threshold) (e.g. claim 1 , via one or more electrodes positioned near claim 1 , on claim 1 , or otherwise in relation to the surface) to induce the controlled movement of the motive phase on the surface (e.g. claim 1 , via electrophoretic force or dielectrophoretic force).3. The method of claim 1 , ...

SURFACE TOPOGRAPHIES FOR NON-TOXIC BIOADHESION CONTROL

Disclosed herein is an article that includes a first plurality of spaced features. The spaced features are arranged in a plurality of groupings; the groupings of features include repeat units; the spaced features within a grouping are spaced apart at an average distance of about 1 nanometer to about 500 micrometers; each feature having a surface that is substantially parallel to a surface on a neighboring feature; each feature being separated from its neighboring feature; the groupings of features being arranged with respect to one another so as to define a tortuous pathway. The plurality of spaced features provide the article with an engineered roughness index of about 5 to about 20. 1. An article comprising:a first plurality of spaced features; the spaced features arranged in a plurality of groupings; the groupings of features comprising repeat units; the spaced features within a grouping being spaced apart at an average distance of about 1 nanometer to about 500 micrometers; each feature having a surface that is substantially parallel to a surface on a neighboring feature; each feature being separated from its neighboring feature; the groupings of features being arranged with respect to one another so as to define a tortuous pathway; the plurality of spaced features providing the article with an engineered roughness index of about 5 to about 30; where the article is an interuterine device.2. The article of claim 1 , wherein the plurality of spaced feature extend outwardly from a surface.3. The article of claim 2 , wherein the plurality of spaced features has a similar chemical composition to the surface.4. The article of claim 2 , wherein the plurality of spaced features has a different chemical composition from that of the surface.5. The article of claim 2 , wherein the plurality of spaced features is applied to the surface in the form of a coating.6. The article of claim 1 , wherein the plurality of spaced features comprises an organic polymer claim 1 , a ...

APPARATUS AND METHODS FOR PUMPING GASES FROM A CHAMBER

Apparatus and methods for pumping gases from a chamber are disclosed. In one example, an apparatus for evacuating gases from a chemical vapor deposition (CVD) chamber is disclosed. The apparatus includes: a housing including an internal surface and at least one inlet in fluid communication with the CVD chamber; and a coating on the internal surface. The coating is configured to make the internal surface hydrophobic. 1. An apparatus for evacuating gases from a chemical vapor deposition (CVD) chamber , comprising:a housing including an internal surface and at least one inlet in fluid communication with the CVD chamber; anda coating on the internal surface, wherein the coating is configured to make the internal surface hydrophobic.2. The apparatus of claim 1 , wherein the hydrophobic coating has a thickness less than 1 millimeter.3. The apparatus of claim 1 , wherein the coating is configured to make the internal surface have a water contact angle larger than 120 degrees.4. The apparatus of claim 1 , wherein the coating is formed by a liquid state material.5. The apparatus of claim 1 , wherein the coating does not chemically react with the gases from the CVD chamber.6. The apparatus of claim 1 , further comprising:a plurality of turbo blades inside the housing and surrounded by the internal surface, wherein the internal surface has a gap from the plurality of turbo blades such that the plurality of turbo blades will not damage the coating during pumping operation of the plurality of turbo blades.7. The apparatus of claim 1 , further comprising an input pumping line fluidly connecting the CVD chamber to the at least one inlet claim 1 , wherein:the gases are pumped out of the chamber through the input pumping line;an internal surface of the input pumping line has a second coating that is configured to make the internal surface of the input pumping line hydrophobic; andan internal surface of the at least one inlet has a third coating that is configured to make the ...

METHOD FOR COATING THE INNER WALL OF A TUBE

The invention relates to a method for forming a coating in the inner wall of a tube, including the following operations: 1. A method for forming a coating in the inner wall of a tube , comprising the following operations:moving a segment of a liquid composition of coating particles in suspension inside the tube at a constant controlled speed at least equal to 2 cm/s, so as to drive a homogeneous liquid film over the inner wall of the tube, andallowing the solvent of the liquid composition to evaporate and the coating particles in suspension to be deposited on the inner wall of the tube.2. The method according to claim 1 , characterized in that to allow the solvent of the liquid composition to evaporate and the coating particles in suspension to be deposited on the inner wall of the tube claim 1 , the tube is left idle at room temperature for at least one hour.3. The method according to claim 1 , characterized in that the static contact angle of a drop of the liquid composition of coating particles in suspension on the inner wall of the tube is at most equal to 20°.4. The method according to claim 1 , characterized in that said two preceding operations are repeated until the thickness of the coating is at least equal to 300 nm or until the coating has a micro-texture comprised between 100 nm and 50 μm.5. The method according to claim 1 , characterized in that said two preceding operations are repeated once.6. The method according to claim 5 , characterized in that said two preceding operations are repeated twice.7. The method according to claim 1 , characterized in that the movement speed of the liquid segment is at most equal to 50 cm/s.8. The method according to claim 7 , characterized in that the movement speed of the liquid segment is at least equal to 10 cm/s.9. The method according to claim 7 , characterized in that the movement speed of the liquid segment is at least equal to 5 cm/s.10. The method according to claim 1 , characterized in that prior to the ...

CYLINDRICAL TUBE WHOSE INNER WALL IS CONSTITUTED BY A HYDROPHOBIC COATING

The invention relates to a cylindrical tube made of polymer material or glass, whose cylindrical inner wall includes a coating of hydrophobic particles having a surface with a peak-to-valley distance of between 100 nm and 50 μm; 1. A cylindrical tube made of polymer material or glass comprising a cylindrical inner wall that is constituted by a coating of hydrophobic particles having a surface with a peak-to-valley distance of between 100 nm and 50 μm , such as between 0.3 and 20 μm.2. The tube of claim 1 , characterized in that the inside diameter of the tube is at most equal to 10 cm claim 1 , such as 5 cm claim 1 , such as 20 mm claim 1 , such as 10 mm claim 1 , or even 4 mm.3. The tube of claim 1 , characterized in that the internal diameter of the tube is at least equal to 1 mm.4. The tube of claim 1 , characterized in that the coating of hydrophobic particles has a thickness of at least 300 nm.5. The tube of claim 1 , characterized in that the hydrophobic particles comprise metal oxide particles such as silica bearing a hydrophobic coating claim 1 , hydrophobic polymer particles such as fluoropolymer claim 1 , polysiloxane claim 1 , polystyrene claim 1 , polyester claim 1 , silicone copolymer claim 1 , thermoplastic silicone vulcanizate claim 1 , copolyester claim 1 , polyamide claim 1 , polyethylene claim 1 , polypropylene claim 1 , polyether-ester copolymer claim 1 , thermoplastic polyurethane claim 1 , polyether amide block copolymer claim 1 , polyamide block copolymer claim 1 , styrene block copolymer claim 1 , polycarbonate claim 1 , polyolefin elastomer claim 1 , thermoplastic vulcanizate claim 1 , ionomer claim 1 , polyoxymethylene (POM) claim 1 , acrylonitrile butadiene styrene (ABS) claim 1 , acetal claim 1 , acrylic claim 1 , polyvinyl chloride (PVC) or a combination thereof.6. The tube of claim 5 , wherein the hydrophobic particles comprise silica bearing a hydrophobic coating.7. The tube of claim 1 , characterized in that the hydrophobic coating ...

Imprinted multi-layer structure

An imprinted multi-layer structure includes a support and a structured bi-layer on or over the support, The structured bi-layer includes a first cured layer having a first cross-linked material on or over the support. A second cured layer has a second material different from the first material on or over the first cured layer on a side of the first cured layer opposite the support. The structured bi-layer has at least a depth greater than the thickness of the second cured layer. The first material is cross-linked to the second material.

Active Energy Ray-Curable Resin Composition, Antifogging Antifouling Laminate, Article, Method for Producing Same, and Antifouling Method

An anti-fogging and anti-fouling laminate, including: a substrate; and an anti-fogging and anti-fouling layer on the substrate where a surface of the anti-fogging and anti-fouling layer is flat, wherein the anti-fogging and anti-fouling layer is a cured product obtained by curing an active energy ray curable resin composition through an active energy ray, wherein the active energy ray curable resin composition includes a hydrophilic monomer having a radically polymerizable unsaturated group and a photopolymerization initiator, wherein a content of the hydrophilic monomer having a radically polymerizable unsaturated group in the active energy ray curable resin composition is 60% by mass or more, and wherein a surface of the anti-fogging and anti-fouling layer has a pure water contact angle of 90° or more.

LIQUID IMPREGNATED SURFACES FOR LIQUID REPELLANCY

Articles including repellent surfaces and methods of making and using these articles are disclosed. The repellant surface can comprise a polymer having a roughened surface and a fluorinated silane and a lubricating liquid deposited on the roughened surface. The repellent surface, and by extension the articles described herein, can exhibit superomniphobic properties. The methods for producing the repellant surface can comprise dissolving a polymer in a solvent to produce a polymer solution and optionally adding a non-solvent to the polymer solution to produce a casting mixture. The polymer solution or casting mixture can be deposited on a surface of a substrate and the solvent and/or the non-solvent evaporated to provide a coated-substrate having a roughened surface. A functional layer comprising a fluorinated silane followed by a lubricating liquid can be deposited on the roughened surface to form the repellant surface. 1. A method for producing a repellant surface , the method comprising:dissolving a polymer in a solvent to produce a polymer solution;adding a non-solvent to the polymer solution to produce a casting mixture;depositing the casting mixture on a surface of a substrate;evaporating the solvent and the non-solvent from the casting mixture to provide a coated-substrate having a roughened surface; andintroducing a lubricating liquid to the roughened surface to form a liquid impregnated layer.2. The method of claim 1 , further comprising depositing a functional layer comprising a fluorinated silane on the roughened surface.3. (canceled)4. The method of claim 1 , wherein the polymer includes a hydrophobic polymer comprising a polyalkylene claim 1 , a vinyl aromatic polymer claim 1 , an acrylonitrile butadiene styrene copolymer claim 1 , copolymers thereof claim 1 , or blends thereof.5. The method of claim 1 , wherein the solvent comprises an organic solvent.6. The method of claim 1 , wherein the polymer and the solvent are present in the casting mixture at a ...

COMPOSITION FOR FORMING A HARD COATING LAYER HAVING EXCELLENT ANTI-FOULING PROPERTY

Provided is a composition for forming a hard coating layer including about 0.1 wt % to about 15 wt % of a polysilazane, about 55 wt % to about 94.6 wt % of a reactive solvent containing hydroxyl group, about 5 wt % to about 20 wt % of a titanium dioxide (TiO), and about 0.3 wt % to about 10 wt % of a zirconia (ZrO). The composition provides a hard coating film which has excellent anti-fouling and superhydrophilicity, scratch resistance, abrasion resistance, antimicrobial property, weatherability, and a method for manufacturing the same which allow non-vacuum wet coating, thereby shortening fabrication time and providing excellent processability. 1. A composition for forming a hard coating layer , comprising:about 0.1 wt % to about 15 wt % of a polysilazane;about 55 wt % to about 94.6 wt % of a reactive solvent containing hydroxyl group;{'sub': '2', 'about 5 wt % to about 20 wt % of a titanium dioxide (TiO); and'}{'sub': '2', 'about 0.3 wt % to about 10 wt % of a zirconia (ZrO).'}3. The composition for forming a hard coating layer according to claim 1 ,wherein the reactive solvent containing hydroxyl group is an alcohol-based solvent, a silanol-based solvent, an alkoxysilane-based solvent, or a combination thereof.4. The composition for forming a hard coating layer according to claim 3 ,wherein the reactive group-containing reactive solvent comprises ethanol and tetraethoxysilane (TEOS), andwherein the weight ratio of ethanol to tetraethoxysilane (TEOS) is about 1:0.001 to about 1:0.5.5. The composition for forming a hard coating layer according to claim 1 ,{'sub': '2', 'the titanium dioxide (TiO) has an average particle diameter (D50) of about 8 nm to 15 nm, and'}{'sub': '2', 'the zirconia (ZrO) has an average particle diameter (D50) of about 10 nm to 25 nm.'}6. A hard coating film comprising:a substrate; and a hard coating layer formed on the substrate,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the hard coating layer is formed from the composition ...

SUPERHYDROPHOBIC UV CURABLE COATING

The present invention describes hydrophobic hybrid solvent-based and energy curable compositions that include monomers and/or oligomers that have a composite molar average functionality greater than 1; optionally a photoinitiator; hydrophobic nanoparticles with particle size 1 nm to 30 μm; and one or more solvents. The reaction product of the monomers and/or oligomers is a polymer having greater than 1% mole % alkylenic reactive sites of unsaturation. The surfaces of the compositions are hydrophobic when dried and cured. In certain embodiments, the compositions are super-hydrophobic. The compositions further maintain robust hydrophobicity after aging at elevated temperature. 1. A hydrophobic hybrid solvent-based and energy curable coating or ink composition , comprising:a) one or more monomers and/or oligomers containing alkylenic unsaturated reactive groups having an alkylenically unsaturated composite molar average functionality higher than 1.00;b) particles having a particle size of between about 1 nm and 30 microns; andc) one or more solvents;wherein the dried and cured coating or ink composition has a water contact angle of equal to or greater than 110 degrees; and/or wherein the dried and cured coating or ink composition has a water roll off angle of less than or equal to 10 degrees.2. (canceled)3. The coating or ink composition of claim 1 , wherein the one or more monomers and/or oligomers react to form a polymer having alkylenic reactive sites of unsaturation.4. The coating or ink composition of claim 3 , wherein the polymer having alkylenic reactive sites of unsaturation has greater than 1% mol % alkylenic reactive sites of unsaturation.5. The coating or ink composition of claim 1 , wherein the one or more monomers and/or oligomers have an alkylenically unsaturated composite molar functionality of higher than 1.25; or higher than 1.50; or higher than 1.75; or higher than 2.00; or higher than 2.50; or higher than 2.75; or higher than 3.00.6. (canceled)7. ( ...

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort. 164-. (canceled)66. The hydrated silicone hydrogel contact lens of claim 65 , wherein the PEG chains are derived from at least one member selected from the group consisting of: PEG-SH; HS-PEG-SH; HOOC-PEG-SH; HN-PEG-SH; a multi-arm PEG with one or more thiol groups; a PEG dendrimer with one or more thiol groups; PEG-NH; HN-PEG-NH; HN-PEG-COOH; a multi-arm PEG with one or more amino groups; a PEG dendrimer with one or more amino groups; PEG-COOH; HOOC-PEG-COOH; a multi-arm PEG with one or more carboxyl groups; a PEG dendrimer with one or more carboxyl groups; and combinations thereof.67. The hydrated silicone hydrogel contact lens of claim 66 , wherein said at least one polysiloxane-containing vinylic monomer and/or said at least one polysiloxane-containing vinylic macromer are a monomethacrylated or monoacrylated polydimethylsiloxane claim 66 , a vinyl carbonate-terminated polydimethylsiloxane claim 66 , a vinyl carbamate-terminated polydimethylsiloxane claim 66 , a vinyl terminated polydimethylsiloxane claim 66 , a methacrylamide-terminated polydimethylsiloxane claim 66 , an acrylamide-terminated polydimethylsiloxane claim 66 , an acrylate-terminated polydimethylsiloxane claim 66 , a methacrylate-terminated polydimethylsiloxane claim 66 , bis-3-methacryloxy-2-hydroxypropyloxypropyl polydimethylsiloxane; N claim 66 ,N claim 66 ,N′ claim 66 ,N′-tetrakis(3-methacryloxy-2-hydroxypropyl)-alpha claim 66 ,omega-bis-3-aminopropyl-polydimethylsiloxane claim 66 , a polysiloxanylalkyl (meth)acrylic ...

SUBSTRATE WITH A SUPERHYDROPHOBIC COATING AND A METHOD OF FABRICATING THEREOF

A substrate with a superhydrophobic coating, wherein the superhydrophobic coating includes a binding layer disposed on the substrate, and a hydrophobic layer disposed on the binding layer, wherein the hydrophobic layer includes perfluoroalkyl-functionalized silica nanoparticles, and a method of fabricating the substrate with the superhydrophobic coating. Various combinations of embodiments of the substrate with the superhydrophobic coating and the method of fabricating thereof are provided. 1: A method of forming a superhydrophobic coating , comprising:mixing a solution comprising an alkyl alkoxysilane, a glycidyl-containing alkoxysilane, an alcohol, ammonium hydroxide, and water to form a mixture and applying the mixture onto a substrate;heating the substrate and the mixture applied thereon, wherein the substrate is functionalized with the alkyl alkoxysilane and the glycidyl-containing alkoxysilane, thereby forming a coated substrate comprising a binding layer on the substrate; andapplying a suspension comprising perfluoroalkyl-functionalized silica nanoparticles onto the coated substrate to form a hydrophobic layer on the binding layer, thereby forming the superhydrophobic coating.2: The method of claim 1 , further comprising:annealing the substrate with the superhydrophobic coating at a temperature in the range of 100° C. to 300° C. for no more than 2 hours,wherein the alkyl alkoxysilane is selected from the group consisting of methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, trimethylethoxysilane, and dimethyldiethoxysilane, andwherein the glycidyl-containing alkoxysilane is (3-glycidyloxypropyl)trimethoxysilane.3: The method of claim 1 ,wherein the mixture is applied onto the substrate by spray-coating, andwherein the suspension is applied onto the coated substrate by spray-coating.4: The method of claim 1 , wherein the substrate and the mixture applied thereon are heated at a temperature of 30 to 90° C. for no more than 3 hours.5: The ...

MICRO-NANO HIERARCHICAL STRUCTURE FOR DRAG REDUCTION AND MICROBIAL ADHESION PREVENTION AND MARINE STRUCTURE COMPRISING THE SAME

A micro-nano hierarchical structure for drag reduction and microbial adhesion prevention includes a metallic support plate having formed on its surface a plurality of arrays which are each composed of a plurality of metallic micro-structures and which are arranged in parallel, and a plurality of metallic nano-structures uniformly formed on the micro-structures and the support plate. 1. A micro-nano hierarchical structure for drag reduction and microbial adhesion prevention , the micro-nano hierarchical structure comprising:a metallic support plate having formed on its surface a plurality of arrays which are each composed of a plurality of metallic micro-structures and which are arranged in parallel; anda plurality of metallic nano-structures uniformly formed on the micro-structures and the support plate.2. The micro-nano hierarchical structure of claim 1 , wherein the micro-structures are in the form of protrusions having a long axis and a short axis.3. The micro-nano hierarchical structure of claim 2 , wherein the micro-structures have a width of 10-2000 μm along a cross-section of the long axis claim 2 , and have a height-to-width ratio greater than 0 but not greater than 5.4. The micro-nano hierarchical structure of claim 2 , wherein a shape of each of the micro-structures is any one or a combination of two or more selected from the group consisting of a pyramidal shape claim 2 , a V-groove shape claim 2 , a U-groove shape and a spherical protrusion shape.5. The micro-nano hierarchical structure of claim 1 , wherein the plurality of arrays claim 1 , which are each composed of the plurality of micro-structures claim 1 , are spaced from one another at a distance of 5-2000 μm.6. The micro-nano hierarchical structure of claim 2 , wherein the plurality of micro-structures are arranged such that the long axes of the micro-structures of one array of adjacent arrays cross those of the other array.7. The micro-nano hierarchical structure of claim 2 , wherein a width and/ ...

METHOD FOR FABRICATING A HYDROPHOBIC COATING FOR CORROSION PROTECTION

A method of fabricating a hydrophobic coating on a surface of a solid substrate which includes a layer-integrable material includes the steps of depositing a deformable layer of the layer-integrable material onto the surface of the solid substrate, forcibly embedding a plurality of particles within the deformable layer, and solidifying the deformable layer including the plurality of particles so as to be integral with the surface of the solid substrate. At least a portion of the plurality of particles is embedded at a threshold depth within the deformable layer prior to solidification. 1. A method of fabricating a hydrophobic coating on a surface of a solid substrate which includes a layer-integrable material , the method comprising:depositing a deformable layer of the layer-integrable material onto the surface of the solid substrate;forcibly embedding a plurality of particles within the deformable layer; andsolidifying the deformable layer including the plurality of particles so as to be integral with the surface of the solid substrate,wherein at least a portion of the plurality of particles is embedded at a threshold depth within the deformable layer prior to solidification.2. The method of claim 1 , wherein the step of forcibly embedding a plurality of particles within the deformable layer includes bombarding the deformable layer with a stream of particles at selected momenta.3. The method of claim 1 , wherein the plurality of particles have a size in a range of about 1 nm to about 50 μm.4. The method of claim 3 , wherein the plurality of particles have a size in the range of about 5 nm to about 50 nm.5. The method of claim 1 , wherein the plurality of particles has a size distribution ranging between 1 and 50 percent from an average size value.6. The method of claim 1 , wherein the plurality of particles has a multimodal size distribution.7. The method of claim 1 , wherein the deformable layer is deposited in one of a fluid claim 1 , semi-viscous or viscous form ...

METHOD OF MANUFACTURING SUPER-HYDROPHOBIC AND SUPER-HYDROREPELLENT SURFACE

Provided is a method of manufacturing a super-hydrophobic and super-hydrorepellent surface, and more particularly, a method of manufacturing a super-hydrophobic and super-hydrorepellent surface by plasma treatment. The method includes providing a sample having a surface formed of a polytetrafluoroethylene (PTFE)-based polymer material to a plasma apparatus; injecting oxygen and argon gases into the plasma apparatus; and generating plasma by applying power to the plasma apparatus and plasma-treating the surface of the sample. 1. A method of manufacturing a super-hydrophobic and super-hydrorepellent surface , the method comprising:providing a sample having a surface formed of a polytetrafluoroethylene (PTFE)-based polymer material to a plasma apparatus;injecting oxygen and argon gases into the plasma apparatus; andgenerating plasma by applying power to the plasma apparatus and plasma-treating the surface of the sample.2. The method according to claim 1 , wherein in the providing of the sample having the surface formed of the PTFE-based polymer material to the plasma apparatus claim 1 , the sample comprises at least one of a substrate in which a PTFE-based polymer material is molded into a flat plate shape claim 1 , a substrate in which a PTFE-based polymer material has a curved surface claim 1 , a substrate in which a PTFE-based polymer material is coated on a surface of a metallic material claim 1 , and a substrate in which a PTFE-based polymer material is coated on a surface of an organic/inorganic polymer material.3. The method according to claim 1 , wherein the generating of the plasma by applying power to the plasma apparatus and the plasma-treating of the surface of the sample comprises applying a power of 100 W to 1000 W to the plasma apparatus.4. The method according to claim 1 , wherein the generating of the plasma by applying power to the plasma apparatus and the plasma-treating of the surface of the sample comprises plasma-treating the surface of the sample ...

SEMICONDUCTOR MANUFACTURED NANO-STRUCTURES FOR MICROBE OR VIRUS TRAPPING OR DESTRUCTION

A device for isolating a microbe or a virion includes a semiconductor substrate; and a trench formed in the semiconductor substrate and extending from a surface of the semiconductor substrate to a region within the semiconductor substrate; wherein the trench has dimensions such that the microbe or the virion is trapped within the trench. 1. A method for isolating microorganisms , comprising:forming an annealed layer of epitaxial silicon germanium on a silicon substrate, the annealed layer of epitaxial silicon germanium comprising a roughened nanosurface comprising nanoscale germanium agglomerates;forming a plurality of spaced trenches in the roughened nanosurface between the nanoscale germanium agglomerates, the plurality of spaced trenches comprising a fractal pattern, wherein a first trench of the plurality of spaced trenches comprises a first dimension and a second trench of the plurality of spaced trenches comprises a second dimension; andpassing a solution comprising a first microorganism and a second microorganism through the plurality of spaced trenches to isolate the first microorganism from the second microorganism.2. The method of claim 1 , wherein the first dimension is selected based on a size of the first microorganism to ensure that the first microorganism is too large to pass through the first trench.3. The method of claim 2 , wherein the second microorganism can pass through the first trench.4. The method of claim 3 , wherein the second dimension is selected based on a size of the second microorganism to ensure that the second microorganism is too large to pass through the second trench.5. The method of claim 1 , wherein each trench of the plurality of spaced trenches is configured to damage or destroy one or more targeted microorganisms having a specific size range.6. The method of claim 5 , wherein each trench further comprises a material having an affinity for the one or more targeted microorganisms.7. The device of claim 1 , wherein the first ...

DUST REPELLANT AND ANTI-REFLECTIVE INORGANIC COATING AND METHOD FOR PREPARING THE SAME

The invention provides a dust repellant and anti-reflective inorganic coating and the method for preparing the coating. The dust repellant and anti-reflective inorganic coating includes nano-porous silica (SiO) network of about 5 nm to about 35 nm and is characterized by cracks. The method of preparing the dust repellant and anti-reflective inorganic coating on a substrate includes mixing of aqueous SiOsolution with a solvent. The aqueous SiOsolution with the solvent is stirred to form a solution. The solution is coated on the substrate to form a film on the surface of the substrate. Thereafter, the film is annealed by heating the film to a temperature of about 500° C. to about 700° C. within a period of about 2 minutes to about 2 hours. Finally, the film is allowed to cool down. 1. A dust repellant and anti-reflective inorganic coating comprising nano-porous silica network and silica nanoparticles of about 5 nanometer (nm) to about 35 nm , wherein the dust repellant and anti-reflective inorganic coating is characterized by cracks; andwherein the cracks are about 0.3 micrometer (μm) to about 3 μm in length and about 0.01 μm to 0.05 μm in width to impart an anti-reflective property to the coating.2. (canceled)3. A method of preparing a dust repellant and anti-reflective inorganic coating on a substrate , the method comprising:mixing aqueous silica (SiO2) solution with a solvent, wherein the silica is about 5 nm to about 35 nm in size;stirring the aqueous SiO2 solution with the solvent to form a solution;coating the solution on the substrate to form a film on the surface of the substrate;annealing the film by heating the film to a temperature of about 500 degree Celsius (° C.) to about 700° C. within a period of about 2 minutes to about 2 hours to create cracks about 0.3-3.0 micrometers (μm) in length and about 0.01-0.05 μm in width to impart an anti-reflective property to the film; andallowing the film to cool down.4. The method of claim 3 , wherein the substrate is ...

SELF-CLEANING FILM SYSTEM AND METHOD OF FORMING SAME

A method of forming a film system includes depositing a monolayer formed from a fluorocarbon onto a substrate. After depositing, the method includes ablating the monolayer to define a plurality of cavities therein, wherein each of the plurality of cavities is spaced apart from an adjacent one of the plurality of cavities along the monolayer. After ablating, the method includes embedding a photocatalytic material into each of the plurality of cavities to form a film on the substrate and thereby form the film system. The film system includes a plurality of regions including the photocatalytic material and disposed within the monolayer such that each of the plurality of regions abuts and is surrounded by the fluorocarbon. 1. A method of forming a film system , the method comprising: a monolayer formed from the fluorocarbon; and', 'a plurality of regions each formed from the functionalized photocatalytic material and each disposed within the monolayer such that each of the plurality of regions abuts and is surrounded by the fluorocarbon., 'concurrently chemisorbing a fluorocarbon and a functionalized photocatalytic material onto a substrate to form a film chemically bonded to the substrate and thereby form the film system, wherein the film includes2. The method of claim 1 , wherein concurrently chemisorbing includes simultaneously depositing the fluorocarbon and the functionalized photocatalytic material onto the substrate.3. The method of claim 2 , wherein concurrently chemisorbing includes simultaneously adsorbing the fluorocarbon and the functionalized photocatalytic material onto the substrate.4. The method of claim 3 , wherein concurrently chemisorbing includes simultaneously chemically bonding the fluorocarbon and the functionalized photocatalytic material to the substrate.5. The method of claim 1 , wherein the film has a first surface that is substantially free from squalene and a second surface spaced opposite the first surface and abutting the substrate;wherein ...

METHOD FOR PREVENTING MARINE BIOFOULING BY USING PRINCIPLE OF HARMONIC VIBRATION

The disclosure provides a method for preventing marine biofouling by using the principle of harmonic vibration. The method includes coating a surface of a device to be disposed in water with an elastic material layer. The elastic material may vibrate harmonically under the influence of the water traveling wave, thereby forming a cosine wave form. Taking “a” as the wavelength of the harmonic vibration, “b” as the amplitude of the harmonic vibration and “L” as the body length of a mussel larva, an algae larva or a barnacle larva, where L/2 is larger than “a” or “b”, the larva will be easily stripped off under the effect of harmonic vibration. The frequency of the cosine wave ranges from 0.02 Hz to 0.1 Hz so that the larva has insufficient time to stay, thereby preventing the larva from attaching. 1. A device to be disposed in water , comprising:a body having a surface, the surface being to be immersed at least in part in water; andan elastic coating disposed on the surface of the body and configured to vibrate harmonically under an influence of a water traveling wave to form a dynamic surface for preventing biofouling in the water.2. The device according to claim 1 , wherein the dynamic surface has a dynamic cosine waveform so that fouling organisms in the water have insufficient area and time to attach to.3. The device according to claim 2 , wherein the dynamic cosine waveform has a frequency of 0.02 Hz to 0.1 Hz.4. The device according to claim 2 , wherein the dynamic cosine waveform satisfy at least one of the following formulas:{'br': None, 'i': L/', '>a;, '2and'}{'br': None, 'i': L/', '>b,, '2'}wherein L is a length of the fouling organisms, a is a wavelength of the dynamic cosine waveform, and b is an amplitude of the dynamic cosine waveform.5. The device according to claim 1 , wherein the elastic coating has an elastic modulus Ep satisfying the following formula:{'br': None, 'i': 'Ep≦', '1.5 MPa≦8.6 MPa.'}6. The device according to claim 1 , wherein the elastic ...

STRUCTURE FOR PREVENTING ADHESION OF MICROORGANISMS AND METHOD OF MANUFACTURING THE SAME

The present invention relates to a structure for preventing the adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, and a method of manufacturing the same. The structure for preventing the adhesion of microorganisms includes: a nano-structure configured to include a plurality of protruding structures each having a sharp end, and made of a resin composition; and a plurality of nano-metal particles configured to be distributed inside the nano-structure. A method of manufacturing a structure for preventing adhesion of microorganisms includes preparing a liquid resin; mixing the liquid resin with nano-metal particles; depositing the liquid resin on a substrate; pressing the liquid resin with a master template on which a pattern corresponding to a plurality of protruding structures is formed; and setting or curing the liquid resin. 1. A method of manufacturing a structure for preventing adhesion of microorganisms , which is capable of preventing microorganisms from adhering to and growing on a surface of an object , the method comprising:preparing a liquid resin;mixing the liquid resin with a plurality of nano-metal particles;depositing the liquid resin on a substrate;pressing the liquid resin with a master template on which a pattern corresponding to a plurality of protruding structures is formed;controlling distribution of the nano-metal particles by applying an electric field to the master template; andsetting or curing the liquid resin.2. The method of claim 1 , further comprising claim 1 , after setting or curing the liquid resin claim 1 , performing a post process so that the plurality of nano-metal particles are exposed out of a surface of the set or cured resin.3. The method of claim 1 , wherein the plurality of nano-metal particles is made of one or more metals selected from the group consisting of copper Cu claim 1 , silver Ag claim 1 , platinum Pt claim 1 , gold Au claim 1 , zinc Zn ...

ARTICLES AND METHODS FOR MODIFYING CONDENSATION ON SURFACES

The articles and methods described herein provide a way to manipulate condensation on a surface by micro/nano-engineering textures on the surface and filling the spaces between the texture features with an impregnating liquid that is stably held therebetween or therewithin. The articles and methods allow droplets of water, or other condensed phases, even in micrometer size range, to easily shed from the surface, thereby enhancing contact between a condensing species and the condensing surface. It has been found that dropwise condensation is enhanced by the use of an impregnating (secondary) liquid that has a relatively high surface tension, and, even more preferably, an impregnating liquid that has both a high surface tension and a low viscosity. 1. An article comprising a liquid-impregnated surface configured to promote or inhibit condensation thereupon and/or shedding of condensate thereupon , said surface comprising a matrix of features on a solid substrate and an impregnating liquid , said features spaced sufficiently close to stably contain an impregnating liquid therebetween or therewithin.4. The article of claim 1 , wherein all of (a) claim 1 , (b) claim 1 , (c) claim 1 , and (d) holds such that the impregnating liquid does not spread on the condensate claim 1 , the condensate does not displace the impregnating liquid claim 1 , and the condensate does not spread on the impregnating liquid in filmwise condensation.5. The article of claim 1 , wherein the surface is configured to promote condensation and/or shedding of condensate thereupon claim 1 , and wherein the impregnating liquid has a surface tension from about 30% to about 95% of the surface tension of the condensate.6. The article of claim 5 , wherein the impregnating liquid has a surface tension from about 33% to about 67% of the surface tension of the condensate.7. The article of claim 1 , wherein the condensate is water.8. The article of claim 7 , wherein the surface tension of the impregnating liquid ...

SURFACE-INDEPENDENT, SURFACE-MODIFYING, MULTIFUNCTIONAL COATINGS AND APPLICATIONS THEREOF

The present invention provides a surface-independent surface-modifying multifunctional biocoating and methods of application thereof. The method comprises contacting at least a portion of a substrate with an alkaline solution comprising a surface-modifying agent (SMA) such as dopamine so as to modify the substrate surface to include at least one reactive moiety. In another version of the invention, a secondary reactive moiety is applied to the SMA-treated substrate to yield a surface-modified substrate having a specific functionality. 2. The method of wherein the reactive moiety is a metal.4. The method of wherein the biofouling-resistant reactive moiety is selected from the group consisting of thiols claim 3 , primary amines claim 3 , secondary amines claim 3 , nitriles claim 3 , aldehydes claim 3 , imidazoles claim 3 , azides claim 3 , halides claim 3 , polyhexamethylene dithiocarbonate claim 3 , hydrogen claim 3 , hydroxyls claim 3 , carboxylic acids claim 3 , aldehydes claim 3 , carboxylic esters or a carboxamides.5. The method of wherein the modified substrate is part of a medical device.7. The kit of further comprising a reactive moiety selected from the group consisting of thiols claim 6 , primary amines claim 6 , secondary amines claim 6 , nitriles claim 6 , aldehydes claim 6 , imidazoles claim 6 , azides claim 6 , halides claim 6 , polyhexamethylene dithiocarbonate claim 6 , hydrogen claim 6 , hydroxyls claim 6 , carboxylic acids claim 6 , aldehydes claim 6 , carboxylic esters or carboxamides.8. The kit of further comprising a substrate surface to be modified.9. The kit of wherein the surface-modifying agent is in solution.10. The kit of wherein the surface-modifying agent is in powdered form. This application is a divisional of U.S. application Ser. No. 13/939,386 filed Jul. 11, 2013, which is a divisional of U.S. application Ser. No. 11/875,237 filed Oct. 19, 2007, and has issued as U.S. Pat. No. 8,541,060 on Sep. 24, 2013, which claims priority to U.S. ...

Superoleophobic Alumina Coatings

A superhydrophobic surface can be formed by contacting an article with a suspension of fluorinated boehmite particles to leave a film of the fluorinated boehmite particles after removal of the suspending fluid. The film can be transparent or the film can be translucent or opaque. When the film is translucent or opaque, the film can render the surface superoleophobic. 1. A coating composition , comprising fluorinated boehmite nanoplatelets , wherein a multiplicity of fluorinated moieties are bound to plurality of boehmite nanoplatelets.2. The coating composition according to claim 1 , wherein the boehmite nanoplatelets are 10 to 400 nm in cross-section.3. The coating composition according to claim 1 , wherein the fluorinated moieties comprise a fluorinated organosilane.4. The coating composition according to claim 3 , wherein the fluorinated organosilane comprises a fluorinated hydrocarbon group.5. The coating composition according to claim 3 , wherein the fluorinated organosilane comprises CFCHCH— claim 3 , where x is 1 to 30.6. The coating composition according to claim 1 , further comprising a solvent.7. A method of preparing a coating composition according to claim 1 , comprising:providing a plurality of boehmite nanoparticles;providing a fluorinated organosilane coupling agent;dispersing the boehmite nanoparticles in a fluid comprising a first solvent the fluorinated organosilane coupling agent wherein fluorinated boehmite nanoplatelets form;optionally, isolating the fluorinated boehmite nanoplatelets, andoptionally, suspending the fluorinated boehmite nanoplatelets in a second solvent.8. The method according to claim 7 , wherein the fluorinated organosilane coupling agent comprises RSiX) claim 7 , where n is 1-3; X is independently claim 7 , hydroxyl claim 7 , H claim 7 , Cl claim 7 , Br claim 7 , I claim 7 , C-Calkoxy claim 7 , C-Caryloxy claim 7 , C-Cacyloxy claim 7 , amino claim 7 , C-Calkylamino claim 7 , C-Cdialkylamino claim 7 , or any combination thereof ...

PROCESSES FOR COATING SUBSTRATES WITH POLYMERS FORMED FROM TRANS-1,3,3,3-TETRAFLUOROPROPENE AND VINYLIDENE DIFLUORIDE

The present invention generally relates to processes for coating substrates, preferably metals, with solutions having fluoro-copolymers that comprise trans-1,3,3,3-tetrafluoropropene monomers and vinylidene difluoride monomers and at least 50 weight percent of the fluoro-copolymer comprises trans-1,3,3,3-tetrafluoropropene monomers. The fluoro-copolymer has a surface energy below about 40 mJ/m. The surfaces of the substrates may be subjected to a phosphate treatment prior to application of the fluoro-copolymer coating, and/or the fluoro-copolymer coating may be applied directly onto the surface of the substrate. 1. A process for applying a coating to a surface of a metal substrate , the process comprising:{'sup': '2', 'applying a coating solution directly to the surface of the metal substrate, the coating solution comprising a fluoro-copolymer dissolved in a solvent, wherein a concentration of the fluoro-copolymer in the coating solution is from about 1 to about 50 weight percent, wherein the fluoro-copolymer comprises trans-1,3,3,3-tetrafluoropropene monomers and vinylidene difluoride monomers, wherein at least 50 wt. % of the fluoro-copolymer comprises trans-1,3,3,3-tetrafluoropropene monomers, and wherein the fluoro-copolymer has a surface energy below about 40 mJ/m.'}2. The process of claim 1 , further comprising pretreating the surface with a metal phosphate solution before applying the coating solution.3. The process of claim 2 , wherein the metal phosphate solution comprises zinc phosphate or iron phosphate.4. The process of claim 3 , wherein the metal phosphate solution has a concentration of about 1 wt % to about 50 wt % metal phosphate.5. The process of claim claim 3 , wherein the solvent is selected from the group consisting of: ethyl acetate; acetone; cis- or trans-1-chloro-3 claim 3 ,3 claim 3 ,3-trifluoropropene; tetrahydrofuran; dimethylformamide; dimethylsulfoxide; dimethylacetamide; 1 claim 3 ,1 claim 3 ,1 claim 3 ,3 claim 3 ,3-pentafluorobutane; N- ...

Novel antifouling technology by raft polymerization

Directed bioadhesion coatings, methods of forming directed bioadhesion coatings, and methods of directing bioadhesion are provided. In particular, methods of forming directed bioadhesion coatings include providing a substrate having a graft monomer layer on a surface thereof, selectively removing discrete portions of the graft monomer layer to expose the substrate surface, polymerizing any remaining portions of the graft monomer layer via reversible addition-fragmentation chain-transfer (RAFT) polymerization with a RAFT chain transfer agent to form a plurality of graft polymers, and simultaneously with polymerizing the remaining graft monomer layer, grafting the plurality of graft polymers to the substrate to form a chemical pattern on the substrate.

SILICONE HYDROGEL LENS WITH A CROSSLINKED HYDROPHILIC COATING

The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave. 120-. (canceled)21. A readily-usable silicone hydrogel contact lens , comprising:{'sub': 2', '2', '2', '2, 'a silicone hydrogel contact lens and a crosslinked hydrophilic coating thereon, wherein the crosslinked hydrophilic coating comprises from about 5% to about 80% by weight of poly(ethylene glycol) chains which are designated as PEG chains and derived from at least one member selected from the group consisting of: a poly(ethylene glycol) with one sole amino group, a poly(ethylene glycol) with one sole carboxyl group, a poly(ethylene glycol) with one sole thiol group, HN-PEG-NH, HOOC-PEG-COOH, HS-PEG-SH, HN-PEG-COOH, HOOC-PEG-SH, HN-PEG-SH, a multi-arm PEG with one or more amino groups, a multi-arm PEG with one or more carboxyl groups, a multi-arm PEG with one or more thiol groups, a PEG dendrimer with one or more amino groups, a PEG dendrimer with one or more carboxyl groups, a PEG dendrimer with one or more thiol groups, and combinations thereof, wherein the readily-usable silicone hydrogel ...

Nanoengineered superhydrophobic anti-corrosive aluminum surfaces

An aluminum substrate is provided with a superhydrophobic surface structure that comprises a porous alumina layer having a hydrophobic coating. The porous alumina layer is created on the aluminum substrate by an anodizing process, and is engineered such that the thickness of the alumina layer and the diameters of the pores have nanoscale values. The anodizing process is performed in two anodizing steps with an intermediate etching step. The superhydrophobic surface provides protection against corrosion by entrapping air in the pores so as to prevent penetration of water to the aluminum metal.

Water-Repellent Protective Film, and Chemical Solution for Forming Protective Film

A surface treatment was conducted by using a liquid chemical containing a water-repellent protective film forming agent represented by the following general formula [1], subsequent to a step of cleaning a metal-based wafer and prior to a step of drying the wafer. (R 1 represents a C 1 -C 18 monovalent hydrocarbon group the hydrogen elements of which may partially or entirely be replaced with a fluorine element(s). R 2 mutually independently represents a monovalent organic group having a C 1 -C 18 hydrocarbon group the hydrogen elements of which may partially or entirely be replaced with a fluorine element(s). “a” is an integer of from 0 to 2.)

LIQUID-IMPREGNATED SURFACES, METHODS OF MAKING, AND DEVICES INCORPORATING THE SAME

The invention is directed to an article with a liquid-impregnated surface, the surface having a matrix of features thereupon, spaced sufficiently close to stably contain a liquid therebetween or therewithin, and preferable also a thin film thereupon. The surface provides the article with advantageous non-wetting properties. Compared to previous non-wetting surfaces, which include a gas (e.g., air) entrained within surface textures, these liquid-impregnated surfaces are resistant to impalement and frost formation, and are therefore more robust. 1. An article comprising a liquid-impregnated surface , said surface comprising a matrix of features spaced sufficiently close to stably contain a liquid therebetween or therewithin.2. The article of claim 1 , wherein said liquid has viscosity at room temperature no greater than about 1000 cP.3. The article of claim 1 , wherein said liquid has vapor pressure at room temperature no greater than about 20 mm Hg.4. The article of claim 2 , wherein said liquid has a viscosity at room temperature no greater than about 100 cP.5. The article of claim 2 , wherein said liquid has a viscosity at room temperature no greater than about 50 cP.6. The article of claim 1 , wherein the features have substantially uniform height and wherein the liquid fills space between the features and coats the features with a layer at least about 5 nm in thickness over the top of the features.7. The article of claim 1 , wherein the features define pores or other wells and wherein the liquid fills the features.8. The article of claim 1 , wherein the liquid has receding contact angle of 0° such that the liquid forms a stable thin film on the top of the features.9. The article of claim 1 , wherein the matrix has a feature-to-feature spacing from about 1 micrometer to about 100 micrometers.10. The article of claim 1 , wherein the matrix has a feature-to-feature spacing from about 5 nanometers to about 1 micrometer.11. The article of claim 1 , wherein the matrix ...

Pagophobic coating compositions, method of manufacture and methods of use

Some embodiments of the invention include a pagophobic coating assembly including a wick layer coupled an outer layer. The wick layer includes a fluid reservoir with an antifreeze material. The wick can be a hydrophilic or superhydrophilic material, and the outer layer can include a superhydrophobic or omniphobic material. In some embodiments, the wick includes a nylon-based polymer, and the outer layer includes a silicone or siloxane based polymer. In some embodiments of the invention, the antifreeze material includes an alkylene glycol. In some embodiments, the wick layer can enable the antifreeze material to migrate from the wick layer into the outer layer, and the outer layer is configured to enable the antifreeze to migrate to the upper surface of the outer layer. Some embodiments include an article of manufacture including the pagophobic coating assembly. Some further embodiments of the invention include a method of forming the pagophobic coating assembly.

Slippery liquid-infused porous surfaces having improved stability

Methods and articles disclosed herein relate to liquid repellant surfaces having selective wetting and transport properties. An article having a repellant surface includes a substrate comprising surface features with re-entrant curvature and an immobilized layer of lubricating liquid wetting over the surface features. The surface features with re-entrant curvature can be designed to provide high repellency even after failure or removal of the immobilized layer of lubricating liquid under certain operating conditions.

SANITATION SYSTEMS AND COMPONENTS THEREOF HAVING A SLIPPERY SURFACE

The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). Slippery liquid-infused porous surfaces outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where slippery liquid-infused porous surfaces will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments. 1. An article comprising a slippery surface capable of reducing adhesion of a foreign material to the article ,wherein the article is a component of a sanitation system;wherein the article comprises:(i) a substrate comprising a roughened surface, and(ii) a lubricating liquid having a chemical affinity for the roughened surface, the lubricating liquid wetting and adhering to the roughened surface to provide a liquid overlayer on the roughened surface, without dewetting from the substrate, to form the slippery surface; andwherein the foreign material comprises waste water, dirt, a fecal matter, urine, blood, a bacterium, a virus, a fungus, a bodily fluid, a tissue, or a combination thereof.2. The article according to claim 1 , wherein the article is a toilet or a sink.3. The article according to claim 1 , wherein the chemical affinity of the lubricating liquid for the roughened surface is determined by an equilibrium contact angle of less than 90°.4. The article according to claim 1 , wherein the ...

SEMICONDUCTOR MANUFACTURED NANO-STRUCTURES FOR MICROBE OR VIRUS TRAPPING OR DESTRUCTION

A device for isolating a microbe or a virion includes a semiconductor substrate; and a trench formed in the semiconductor substrate and extending from a surface of the semiconductor substrate to a region within the semiconductor substrate; wherein the trench has dimensions such that the microbe or the virion is trapped within the trench. 1. A device for damaging or destroying a microbe or a virion , comprising:a semiconductor substrate; andan array of protrusions having nanoscale dimensions extending from the semiconductor substrate; andwherein the microbe or the virion is damaged or destroyed after being disposed on the array of protrusions.2. The device of claim 1 , wherein the array of protrusions comprise epitaxial growth on a semiconductor fin structure.3. The device of claim 1 , wherein the array of protrusions comprise nanospikes with a sharp end to puncture the microbe or the virion.4. The device of claim 1 , wherein the array of protrusions has protrusions having different dimensions.5. The device of claim 1 , wherein the array of protrusions has protrusions having blunt ends.6. The device of claim 1 , wherein the array of protrusions has protrusions having a rod shape.7. The device of claim 1 , wherein the semiconductor substrate is a flexible film.8. The device of claim 7 , wherein the flexible film is formed into a tubular shape claim 7 , and the array of protrusions extend into a central region of the tubular shape. This application is a divisional of and claims priority to U.S. patent application Ser. No. 14/988,887, filed on Jan. 6, 2016, entitled “SEMICONDUCTOR MANUFACTURED NANO-STRUCTURES FOR MICROBE OR VIRUS TRAPPING OR DESTRUCTION”, the entire contents of which are incorporated herein by reference.The present invention relates to semiconductors, and more specifically, to semiconductor nanostructures.Semiconductor materials have an electrical conductivity value that falls between that of a conductor, such as copper, and an insulator, such as glass. ...

STRUCTURE FOR PREVENTING ADHESION OF MICROORGANISMS AND METHOD OF MANUFACTURING THE SAME

The present invention relates to a structure for preventing the adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, and a method of manufacturing the same. The structure for preventing the adhesion of microorganisms includes: a nano-structure configured to include a plurality of protruding structures each having a sharp end, and made of a resin composition; and a plurality of nano-metal particles configured to be distributed inside the nano-structure. A method of manufacturing a structure for preventing adhesion of microorganisms includes preparing a liquid resin; mixing the liquid resin with nano-metal particles; depositing the liquid resin on a substrate; pressing the liquid resin with a master template on which a pattern corresponding to a plurality of protruding structures is formed; and setting or curing the liquid resin. 1. A structure for preventing adhesion of microorganisms , which is capable of preventing microorganisms from adhering to and growing on a surface of an object , the structure comprising:a nano-structure layer including a plurality of patterned protrusions, wherein the patterned protrusions form a top surface of the nano-structure layer and prevent adhesion of microorganisms, and the nano-structure layer is made of a resin composition; anda plurality of nano-metal particles distributed in the nano-structure layer;wherein the distribution of the nano-metal particles is controlled by means of an electric field so that density of the nano-metal particles is highest at the top surface of the nano-structure layer and decreases in a direction inward from the top surface of the nano-structure layer.2. The structure of claim 1 , wherein the patterned protrusions are a plurality of tip-shaped structures each having a sharp end.3. The structure of claim 1 , wherein the patterned protrusions are one of sinusoidal structures claim 1 , column-shaped structures claim 1 , and ...

Compositions and methods for fabricating durable, low-ice-adhesion coatings

This invention provides durable, low-ice-adhesion coatings with excellent performance in terms of ice-adhesion reduction. Some variations provide a low-ice-adhesion coating comprising a microstructure with a first-material phase and a second-material phase that are microphase-separated on an average length scale of phase inhomogeneity from 1 micron to 100 microns. Some variations provide a low-ice-adhesion material comprising a continuous matrix containing a first component; and a plurality of discrete inclusions containing a second component, wherein the inclusions are dispersed within the matrix to form a phase-separated microstructure that is inhomogeneous on an average length scale from 1 micron to 100 microns, wherein one of the first component or the second component is a low-surface-energy polymer, and the other is a hygroscopic material. The coatings are characterized by an AMIL Centrifuge Ice Adhesion Reduction Factor up to 100 or more. These coatings are useful for aerospace surfaces and other applications.

LIQUIDS AND VISCOELASTIC MATERIAL REPELLENT AND ANTI-BIOFOULING COATINGS

A process for preparing a repellant smooth surface includes applying a coating composition onto a smooth surface of a substrate having hydroxyl functional groups thereon and an average roughness Ra of less than 4 μm. The coating composition includes: (i) a polymerizable silane or siloxane or both selected from the group consisting of dimethyldimethoxysilane, dimethoxy-methyl(3,3,3-trifluoropropyl)silane, dimethoxy(methyl)octylsilane, diethoxydimethylsilane, (ii) a solvent and (iii) an acid catalyst. The process further includes polymerizing the silane or siloxane or both from the hydroxyl functional groups on the smooth surface of the substrate to form a chemical layer of graft polymers having ends anchored to the smooth surface and applying a lubricant coating over the formed chemical layer to adhere and maintain the lubricant on the smooth surface and form a lubricant-entrenched smooth surface as the repellant smooth surface. 1. A process for preparing a repellant smooth surface , the process comprising:applying a coating composition onto a smooth surface of a substrate having hydroxyl functional groups thereon, wherein the smooth surface has an average roughness Ra of less than 4 μm and wherein the coating composition includes: (i) a polymerizable silane or siloxane or both selected from the group consisting of dimethyldimethoxysilane, dimethoxy-methyl(3,3,3-trifluoropropyl)silane, dimethoxy(methyl)octylsilane, diethoxydimethylsilane, (ii) a solvent and (iii) an acid catalyst;polymerizing the silane or siloxane or both from the hydroxyl functional groups on the smooth surface of the substrate to form a chemical layer of graft polymers having ends anchored to the smooth surface; andafter polymerizing the coating composition to form the chemical layer, applying a lubricant coating over the formed chemical layer to adhere and maintain the lubricant on the smooth surface and form a lubricant-entrenched smooth surface as the repellant smooth surface.2. The process of ...

Superhydrophobic and Oleophobic Coatings with Low VOC Binder Systems

Coating compositions for the preparation of superhydrophobic (SH) and/or oleophobic (OP) surfaces that employ low amounts of volatile organic compounds are described. Also described are the resulting coatings/coated surfaces and methods of their preparation. Such coatings/surfaces have a variety of uses, including their ability to prevent or resist water, dirt and/or ice from attaching to a surface. 1. A coating composition for the application of superhydrophobic and/or oleophobic coatings on surfaces comprising:a polyurethane dispersion or suspension comprising one or more of a polyester urethane, a polyacrylic urethane and/or a polycarbonate urethane;about 5 to about 30% by weight of second particles comprising one or more siloxanes, and/or one or more alkyl, haloalkyl, fluoroalkyl, or perfluoroalkyl containing moieties;said composition optionally comprising up to about 26% by weight of third particles;wherein said coating composition optionally comprises less than 0.3 pounds per gallon of volatile non-exempt organic compounds; andwherein the superhydrophobic coating resulting from the application of said composition to a surface retains its superhydrophobicity after 150-1,400 Taber abrasion cycles at a 1000 g load for coating thickness range of 25-300 microns, and/or 100-2,500 Taber abrasion cycles at a 250 g load, using a CS10 wheel, as judged by the inability of more than 50% of the water droplets applied to the area of the coating subjected to said abrasion cycles to remain on the surface when the planar surface is inclined at 3 degrees.2. The composition of claim 1 , wherein said composition does not comprise first particles and the superhydrophobic coating resulting from the application of said composition to a planar surface retains its superhydrophobicity after 150-800 Taber abrasion cycles at a 1 claim 1 ,000 g load claim 1 , for a thickness range of 25-75 microns claim 1 , and/or 200-1 claim 1 ,400 Taber abrasion cycles at a 250 g load for a thickness ...

Slippery surfaces with high pressure stability, optical transparency, and self-healing characteristics

The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS). Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). SLIPS outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where SLIPS will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.

METHOD AND DEVICE FOR RESTORING AND MAINTAINING SUPERHYDROPHOBICITY UNDER LIQUID

A superhydrophobic surface includes a plurality of microfeatures disposed on a substrate and a gas generator disposed within the microfeatures, the gas generator configured to generate a gas within the microfeatures. Gas is generated within the microfeatures when at least a portion of the microfeatures is in a wetted state to restore the microfeatures to a dewetted state. Gas generation is self-regulating in that gas generation automatically starts when a wetted condition exists and stops when sufficient gas has been generated to recover a dewetted state that restores superhydrophobicity. 120-. (canceled)21. A method of restoring or maintaining superhydrophobicity in liquid on a superhydrophobic surface having a plurality of microfeatures disposed thereon and defining spaces there between comprising:generating a gas within the spaces located between adjacent microfeatures when at least a portion of the superhydrophobic surface is in a wetted state to restore the superhydrophobic surface to a dewetted state, wherein gas generation is self-regulated such that gas generation automatically starts when liquid invades the spaces to form a wetted state and automatically stops when the liquid is expelled from the spaces to form a dewetted state.22. The method of claim 21 , wherein gas is generated by electrolysis.23. The method of claim 21 , wherein the gas is generated by a chemical reaction.24. The method of claim 21 , wherein the gas is generated by boiling.25. The method of claim 21 , wherein the gas is generated intermittently.26. (canceled)27. The method of claim 21 , wherein substantially all of the generated gas remains within the spaces located between adjacent microfeatures.28. The method of claim 21 , wherein the superhydrophobic surface is disposed on a vessel hull.29. The method of claim 21 , wherein the superhydrophobic surface is disposed on an interior pipe surface.30. The method of claim 21 , wherein the surface is substantially free of fouling after being ...

ANTI-REFLECTIVE LENS AND METHOD FOR MANUFACTURING THE SAME

An anti-reflective lens comprises a lens substrate and an anti-reflective layer formed on at least one surface of the lens substrate. The anti-reflective layer comprises a plurality of nano-structures spaced from each other. The plurality of nano-structures protrudes from the at least one surface of the lens substrate to form a compound-eye array. The anti-reflective layer is made of sol-gel composition. The disclosure also provides a method for manufacturing an anti-reflective lens. 1. A method for manufacturing an anti-reflective lens , comprising:providing a sol-gel composition, a lens substrate, and at least one template, wherein each of the at least one template comprises a plurality of nano-patterns spaced from each other, the at least one template corresponds to at least one surface of the lens substrate, the plurality of nano-patterns is recessed from a surface of each of the least one template facing the lens substrate;coating the sol-gel composition on the at least one surface of the lens substrate, and pressing the at least one template on the least one surface of the lens substrate to cause the sol-gel composition to fully infill the plurality of nano-patterns;heating and curing the sol-gel composition coated on the at least one surface of the lens substrate, thereby forming an anti-reflective layer combined with the lens substrate, wherein the anti-reflective layer comprises a plurality of nano-structures corresponding to the plurality of nano-patterns, the plurality of nano-structures protrudes from the at least one surface of the lens substrate to form a compound-eye array; andremoving the template.2. The method of claim 1 , wherein each of the plurality of nano-patterns is a conical groove or a hemispherical groove claim 1 , and each of the plurality of nano-structures is a conical structure or a hemispherical structure.3. The method of claim 2 , wherein each of the plurality of nano-structures has a width on the at least one surface of the lens ...

Precursors for forming heterophasic anti-fouling polymeric coatings

An aqueous precursor liquid for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor liquid includes a first fluorine-containing polyol precursor having a functionality >about 2 that forms a fluorine-containing polymer component defining a first phase in the coating. The precursor liquid also includes a second precursor that forms a second component present as a second phase. The first phase can be a continuous phase and the second phase can be a discrete phase, or the second phase can be the continuous phase and the first phase can be the discrete phase. The discrete phase includes a plurality of domains each having an average size of ≥to about 500 nm to ≤to about 25,000 nm. A crosslinking agent, water, and optional acid or base are also present. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.

ROUGH POLYELECTROLYTE COMPLEX COATINGS AND METHODS OF FORMING

Articles are provided comprising a substrate and a coating. The coating comprises a polyelectrolyte complex having surface roughness. The polyelectrolyte complex has a thickness of at least 10 micrometers and a roughness of at least 1 micrometer. 1. A coating comprising a polyelectrolyte complex , the polyelectrolyte complex comprising an interpenetrating blend of a positively charged polyelectrolyte and a negatively charged polyelectrolyte , the polyelectrolyte complex having a thickness of at least 10 micrometers and a surface roughness of at least about 1 micrometer.2. The coating of wherein the polyelectrolyte complex comprises an inner surface in contact with a substrate claim 1 , a bulk region claim 1 , and an outer surface claim 1 , wherein the outer surface comprises the surface roughness of at least about 1 micrometer.3. The coating of wherein the outer surface comprises a polyelectrolyte comprising fluorinated repeat units.4. The coating of wherein the outer surface comprises a polyelectrolyte comprising zwitterionic repeat units.6. The coating of wherein the polyelectrolyte comprises a first surface roughness having a first length scale and a second surface roughness having a second length scale claim 1 , wherein the first length scale and the second length scale are different.7. The coating of wherein the first length scale and the second length scale differ by more than a factor of about 2.8. The coating of wherein the first length scale and the second length scale differ by more than a factor of about 4.9. The coating of wherein the first length scale and the second length scale differ by more than a factor of about 10.10. The coating of wherein the first length scale and the second length scale differ by more than a factor of about 100.11. The coating of wherein the polyelectrolyte complex has a thickness of at least 100 micrometers and a surface roughness of at least 10 micrometers.12. The coating of further comprising particles claim 1 , the ...

(METH)ACRYLIC COPOLYMER, POLYMER SOLUTION, POLYMER-CONTAINING COMPOSITION, ANTI-FOULING COATING COMPOSITION, AND METHOD FOR PRODUCING (METH)ACRYLIC COPOLYMER

First embodiment of a (meth)acrylic copolymer in the present invention includes following: a (meth)acrylic copolymer having at least one kind of constitutional unit selected from the group consisting of a constitutional unit (A1) having at least one kind of structure (I) selected from the group consisting of structures represented by the following formula (1), formula (2), or formula (3) and a constitutional unit (A2) having a triorganosilyloxycarbonyl group and a constitutional unit (B) derived from a macromonomer (b): 2. A polymer solution comprising:a (meth)acrylic copolymer having a constitutional unit (A3) having at least one kind of structure (III) selected from the group consisting of structures represented by the following formula (4) or (5) and a constitutional unit (B) derived from a macromonomer (b); andan organic solvent, wherein{'sup': '4', 'claim-text': [{'br': None, '—COO-M-OCO\u2003\u2003(4)'}, {'br': None, 'sup': '32', '—COO-M-R\u2003\u2003(5)'}], 'a viscosity of the polymer solution at 25° C. is 5×10mPa·s or less{'sup': '32', '(where, M represents Zn, Cu, Mg, or Ca and Rrepresents an organic acid residue other than a (meth)acryloyloxy group).'}3. A polymer-containing composition comprising the polymer solution according to claim 2 , whereina content of an organic solvent is 30% by mass or more with respect to a total amount of the polymer-containing composition excluding the (meth)acrylic copolymer.4. The polymer-containing composition according to claim 3 , wherein a water content is 15% by mass or less.8. A polymer-containing composition comprising the (meth)acrylic copolymer according to .10. An anti-fouling coating composition comprising the polymer-containing composition according to .11. The anti-fouling coating composition according to claim 10 , further comprising an anti-fouling agent.12. The anti-fouling coating composition according to claim 11 , wherein the anti-fouling agent contains at least one kind selected from the group consisting ...

LIPOPHILIC LAMINATE, METHOD FOR MANUFACTURING THE SAME, PRODUCT, AND METHOD FOR MANUFACTURING THE SAME

A lipophilic laminate, including: a substrate made of a resin; and a lipophilic resin layer on the substrate made of a resin, wherein the lipophilic resin layer includes micro convex portions or micro concave portions in a surface thereof, and wherein an oleic acid contact angle of the surface of the lipophilic resin layer is 10° or less. 1. A lipophilic laminate , comprising:a substrate made of a resin; anda lipophilic resin layer on the substrate made of a resin,wherein the lipophilic resin layer comprises micro convex portions or micro concave portions in a surface thereof, andwherein an oleic acid contact angle of the surface of the lipophilic resin layer is 10° or less.2. The lipophilic laminate according to claim 1 , wherein the lipophilic laminate has an elongation percentage of 10% or more.3. The lipophilic laminate according to claim 1 , wherein a Martens hardness of the lipophilic resin layer is 50 N/mmto 300 N/mm.4. The lipophilic laminate according to claim 1 , further comprising an anchor layer between the substrate made of a resin and the lipophilic resin layer.5. The lipophilic laminate according to claim 1 , wherein the oleic acid contact angle of the surface of the lipophilic resin layer gets smaller over time when the oleic acid contact angle is measured.6. The lipophilic laminate according to claim 1 , wherein the micro convex portions or the micro concave portions are spaced from each other.7. A method for manufacturing a lipophilic laminate claim 1 , comprising:forming an uncured resin layer by applying an active energy ray curable resin composition to a substrate made of a resin; andforming a lipophilic resin layer by bringing a transfer matrix having micro convex portions or micro concave portions into contact with the uncured resin layer, irradiating the uncured resin layer in contact with the transfer matrix with an active energy ray to cure the uncured resin layer, thereby transferring the micro convex portions or the micro concave portions ...

SOIL AND DIRT REPELLENT POWDER COATINGS

A dirt repellant panel coated with a powder coating composition that includes a polymeric binder and an anionic fluorosurfactant present in an amount ranging from about 0.1 wt. % to about 4 wt. %. 1. A powder coating composition comprising a blend ofa binder comprising a polymer resin that is substantially free of fluoro-carbon groups; anda pigment that is pre-treated with an anionic fluorosurfactant;wherein the blend is substantially free of solvent.2. The powder coating composition of claim 1 , wherein the anionic fluorosurfactant is present in an amount ranging from 0.05 wt. % to 4 wt. % based on the total weight of the powder coating composition.3. The powder coating composition of wherein the anionic fluorosurfactant is present in an amount ranging from 0.7 wt. % to 3.0 wt.% based on the total weight of the powder coating.4. The powder coating composition of wherein the anionic fluorosurfactant comprises a phosphate group substituent.5. The powder coating composition of wherein the anionic fluorosurfactant has a pH ranging from 1 to 6.6. The powder coating composition of wherein the anionic fluorosurfactant has a melting point ranging from 50° C. to 70° C.7. The powder coating composition according to claim 1 , wherein the blend further comprises a cross-linker.8. The dirt repellant panel of wherein the polymer resin comprises hydroxyl-terminated polyester resin and the cross-linker comprises a blocked polyisocyanate.9. The dirt repellant panel of wherein the polymer resin comprises carboxylated polyester resin and a glycidyl-functional acrylic polymer resin and the cross-linker comprises a hydroxyl-functional compound claim 7 , and a combination thereof.10. The dirt repellant panel of wherein the polymer resin has a glass transition temperature ranging from 45° C. to 90° C.11. The dirt repellant panel of wherein the pigment is present in an amount ranging from 10 wt. % to 30 wt. % based on the total weight of the powder coating composition.12. A dirt repellant ...

ANTI-SMUDGE BODY, DISPLAY DEVICE, INPUT DEVICE, ELECTRONIC DEVICE, AND ANTI-SMUDGE ARTICLE

An anti-smudge body having a surface that, when fingerprints adhere to the surface, allows the fingerprint patterns to spread spontaneously to thereby cause them to become less noticeable has the surface and a plurality of protrusions provided thereto. The protrusions contain at least one of a first compound having an ester linkage in a portion other than terminal ends and a second compound having a cyclic hydrocarbon group. 1. An anti-smudge body comprisinga surface and a plurality of protrusions provided thereto, whereinthe protrusions contain at least one of a first compound having an ester linkage in a portion other than terminal ends and a second compound having a cyclic hydrocarbon group.2. The anti-smudge body according to claim 1 , wherein an average height of the protrusions is in a range of 10 nm or larger and 150 nm or smaller claim 1 , andan average pitch of the protrusions is in a range of 100 nm or larger and 500 nm or smaller.3. The anti-smudge body according to claim 2 , wherein the average height of the protrusions is in a range of 10 nm or larger and 100 nm or smaller.4. The anti-smudge body according to claim 1 , comprisinga substrate having a surface, andan anti-smudge layer provided on the surface of the substrate, whereinthe anti-smudge layer has a surface on which the plurality of protrusions are disposed.5. The anti-smudge body according to claim 4 , whereinthe anti-smudge layer contains at least one resin composition of an energy ray-curable resin composition and a thermosetting resin composition, andthe resin composition contains the at least one of the first compound and the second compound.6. The anti-smudge body according to claim 1 , wherein the first compound and the second compound are each an additive.7. The anti-smudge body according to claim 6 , wherein the additive is a leveling agent.8. The anti-smudge body according to claim 4 , wherein a plurality of protrusions are disposed on the surface of the substrate claim 4 , andthe anti ...

SYSTEMS, METHODS, AND APPARATUSES FOR REDUCING HYDRODYNAMIC FRICTIONAL DRAG

Systems, methods and apparatuses are provided for the reduction of hydrodynamic frictional drag. These systems, methods and apparatuses can include a vessel surface having an external layer and a plurality of dimples, wherein the external layer comprises a hydrophilic material, and wherein each of the dimples includes an inner surface having a superhydrophobic coating. The dimples can be configured to maintain an air-water interface as one or more fluids flow over the vessel surface. In some embodiments, a pressure reservoir can be coupled with the dimples, and can include an acoustic speaker to vibrate the air-water interface. 1. A system for reducing hydrodynamic frictional drag , the system comprising: wherein the external layer comprises a hydrophilic material,', 'wherein each of the plurality of dimples includes an internal surface having a superhydrophobic coating, and', 'wherein each of the plurality of dimples is adapted to maintain an air bubble within, as one or more fluids flow over the vessel surface; and, 'a vessel surface having an external layer and a plurality of dimples,'}a pressure reservoir coupled with the plurality of dimples, wherein the pressure reservoir is configured to maintain an air-water interface over the plurality of dimples.2. The system of claim 1 , wherein the external layer is substantially flat.3. The system of claim 1 , wherein each of the plurality of dimples has a hexagonal cross section.4. The system of claim 1 , wherein each of the plurality of dimples has a circular cross section.5. The system of claim 1 , wherein each of the plurality of dimples is coupled to the pressure reservoir by an air channel through which air and sound can be conducted.6. The system of claim 1 , wherein the pressure reservoir includes an acoustic speaker configured to vibrate the air-water interface over the plurality of dimples.7. The system of claim 6 , wherein the acoustic speaker is further configured to output an acoustic wave at a ...

SUPER WATER-REPELLENT LAYER STRUCTURE ON WHICH DROPLETS CAN MOVE IN ONE DIRECTION AND METHOD FOR MANUFACTURING SAME

Provided is a super water-repellent layer structure. The super water-repellent layer structure comprises a substrate having a ratchet structure formed on the upper surface thereof and a super water-repellent nanowire structure formed on the ratchet structure, wherein water drops can move in one direction without an external force. A super water-repellent layer structure can be provided which enables water drops to move in one direction using the ratchet structure and the super water-repellent nanowire structure even without force applied from the outside in a state in which the surface thereof is hardly inclined. Thus, such a super water-repellent layer structure can be applied to various industries such as water harvesting, drainage of condensation water of a heat exchanger, etc., a microfluidic industry. 1. A super water-repellent layer structure , comprising:a substrate having a ratchet structure formed on an upper surface thereof; anda super water-repellent nanowire structure formed on the ratchet structure,wherein water droplets can move in one direction on the substrate without an aid of an external force.2. The super water-repellent layer structure of claim 1 , wherein water droplets can move in one direction on the substrate without an aid of an external force claim 1 , even when a surface of the substrate is inclined by 5° or less.3. The super water-repellent layer structure of claim 1 , wherein the ratchet structure satisfies conditions in which an absolute value of W−Wis 50° or more and a height of a constituent triangle of the ratchet structure is 100 μm to 400 μm claim 1 ,{'sub': 1', '2, 'wherein Wis any one of two angles at a bottom of the constituent triangle of the ratchet structure, and Wis the other of the two angles at the bottom of the constituent triangle of the ratchet structure.'}4. The super water-repellent layer structure of claim 1 , wherein the super water-repellent nanowire structure contains at least one selected from the group ...

PVC-Based Metallopolymer Nanocomposites, and Coating Composition and Coating Film Comprising Same

The present invention relates to a PVC-based metallopolymer nanocomposite. The PVC-based metallopolymer nanocomposite includes a core-forming metal ion, a nucleophilic thiol having three mercapto functional groups, and poly(vinyl chloride) (PVC). The present invention also relates to a metallopolymer nanocomposite surface modified with silica that is prepared by grafting the PVC-based metallopolymer nanocomposite with a silane compound.

DURABLE SUPERHYDROPHOBIC AND SUPEROLEOPHOBIC COATINGS WITH NANOPARTICLES

A hydrophobic and oleophobic coating material, comprising: nanoparticles, comprising a metal oxide or a metalloid oxide and having a particle diameter ranging from 50 to 600 nm; with a functionalizing coating on the surfaces of said nanoparticles, said functionalizing coating comprising a compound having a haloalkyl moiety or a haloalkylsilane moiety. The hydrophobic and oleophobic coating material, when applied to a substrate, provides a coated substrate that is characterized by hydrophobicity having a water contact angle of 150° or more and oleophobicity having an oil contact angle of 150° or more. 1. A hydrophobic and oleophobic coating material , comprising:nanoparticles, comprising a metal oxide or a metalloid oxide and having an average particle diameter ranging from 50 to 600 nm; anda functionalizing coating directly applied to a surface of said nanoparticles, said coating comprising a compound having a haloalkyl moiety or a haloalkylsilane moiety,wherein said coating material, when applied to a substrate, exhibits hydrophobicity having a water contact angle of 150° or more and oleophobicity having an oil contact angle of 150° or more, and wherein said substrate does not comprise a binder, or comprises a binder applied directly to the substrate and/or comprises a binder present in between or mixed with the functionalized nanoparticles.2. The coating material of claim 1 , wherein said binder is present and comprises a silane coupling agent claim 1 , an epoxy resin claim 1 , or a fluoropolymer.3. The coating material of claim 2 , wherein said binder comprises an alkoxysilane containing an aminoalkyl group.4. The coating material of claim 3 , wherein said binder comprises N-(2-aminoethyl)-3-aminopropyl-trimethoxysilane.5. The coating material of claim 1 , wherein two or more different sizes of nanoparticles are used to form the coating.6. A method of manufacturing a hydrophobic and oleophobic coated substrate claim 1 , the coating on the substrate comprising ...

Coatings, Coating Compositions, and Methods of Delaying Ice Formation

A coating includes at least one coating layer containing first particles, second particles, and third particles distributed throughout a cross-linked, continuous polymer matrix. An outer surface of the coating layer includes surfaces of at least first particles extending outward from a top periphery of the polymer matrix. The outer surface exhibits a property of delaying ice formation compared to the coating layer without the first particles. A method includes applying a coating composition in one application step. The one-step coating composition contains first particles, second particles, and third particles in a base containing a polymer. A coating composition includes first particles, second particles, and third particles distributed in a matrix precursor. 1. A method comprising:applying a coating composition in one application step, the one-step coating composition containing first particles, second particles, and third particles in a base containing a polymer, the second particles having a composition different from the third particles and first particles, and the third particles having a composition different from the first particles;curing the applied one-step coating composition, forming a cross-linked, continuous polymer matrix, and forming a layer of a cured coating, the cured layer exhibiting a porosity of at most 25 vol %;substantially homogeneously distributing first particles throughout a thickness of the cross-linked, continuous polymer matrix, the thickness of the polymer matrix extending inward from a top periphery of the polymer matrix to a bottom periphery of the polymer matrix;substantially homogeneously distributing second particles throughout the thickness of the polymer matrix;substantially homogeneously distributing third particles throughout the thickness of the polymer matrix; andforming an outer surface of the cured layer including surfaces of at least first particles extending outward from the top periphery of the polymer matrix, the ...

SYSTEM AND METHOD TO INCREASE SURFACE FRICTION ACROSS A HYDROPHOBIC, ANTI-FOULING, AND OLEOPHOBIC COATED SUBSTRATE

A system and method to increase surface friction across a hydrophobic, anti-fouling, and oleophobic coated substrate. The substrate has a hydrophobic surface defined by a surface friction. The system works to increases the surface friction, or roughness, across the hydrophobic surface. The increase in surface friction is accomplished by generating power through an ion source to create an ion cloud. The ion cloud is generated in proximity to the substrate. The ions interact with the hydrophobic surface to create a roughing effect thereon. A gas carrier device introduces an inert carrier gas through the ion cloud to increase density of the ions, which in turn increases surface friction. The system is variable, selectively increasing and decreasing surface friction by: varying the duration that the hydrophobic surface is exposed to the ion cloud; varying power applied to ion source; and varying distance between the ion cloud and the hydrophobic surface. 1. A method to increase surface friction across a hydrophobic substrate , the method comprising:providing a substrate, the substrate having a hydrophobic surface, or a superhydrophobic surface, the surfaces being defined by a surface friction;generating, with a power source, electrical power;generating ions;passing the electrical power through the ions, whereby an ion cloud forms;introducing, with a gas carrier device a carrier gas to the ion cloud, whereby the density of ions in the ion cloud increases;positioning the ion cloud at a predetermined distance from the hydrophobic surface of the substrate, whereby the hydrophobic surface immerses in the ion cloud, whereby the surface friction of the hydrophobic surface increases;varying the duration that the hydrophobic surface is exposed to the ion cloud, whereby the surface friction of the hydrophobic surface is increased or decreased;varying the electrical power applied to the ion source, whereby the surface friction of the hydrophobic surface is increased or decreased; ...

Fabricating Porous Metallic Coatings Via Electrodeposition and Compositions Thereof

A method is provided for creating a porous coating on a surface of a substrate by electrodeposition. The substrate is a part of the cathode. An anode is also provided. A coating is deposited or disposed on the surface by applying a voltage that creates a plurality of porous structures on the surface to be coated. Continuing to apply a voltage creates additional porosity and causes portions of the attached porous structures to detach. A covering layer is created by applying a voltage that creates a thin layer that covers the attached porous structures and the detached portions which binds the porous structures and detached portions together. 1. An article , comprising: a surface having at least one region; and a porous coating on said at least one region of said surface , wherein the coating comprises a plurality of porous structures attached to said at least one region of said surface and at least one layer covering said porous structures.228-. (canceled)29. An application of the article of wherein said coating is used in anti-corrosion claim 1 , anti-fouling claim 1 , anti-condensation claim 1 , anti-ice claim 1 , self-cleaning claim 1 , anti-condensation claim 1 , anti-friction claim 1 , or anti-clotting applications.30. An application of the article of wherein said porous coating is used to enhance the bonding of said coating to paint or polymer.31. An application of the article of wherein said porous coating is used as a catalyst.32. The application of claim 31 , wherein the said covering layer comprises a catalytic material.3335-. (canceled) This application claims the benefit U.S. Provisional Application No. 61/765,438, filed Feb. 15, 2013 and herein incorporated by reference.Not Applicable.Not Applicable.The manufacture and use of porous coatings on surfaces have received great interest due to their importance in both fundamental research and commercial applications. In particular, porous metallic coatings are widely used as catalysts or utilized to enhance ...

MULTIFUNCTIONAL SUPERHYDROPHOBIC DIATOMACEOUS EARTH FOR CHEMICAL ADHESION AND COLOR CHANGE

Provided herein is a multifunctional particle and methods of forming the same. The multifunctional particle includes: a silica particle; a hydrophobic silane; and a silane coupling agent; where each of the hydrophobic silane and the silane coupling agent are chemically bonded to the surface of the silica particle; where the multifunctional particle is superhydrophobic and chemically reactive. 1. A multifunctional particle comprising:a silica particle;a hydrophobic silane chemically bonded to at least a portion of the surface of the silica particle;a silane coupling agent chemically bonded to at least a portion of the surface of the silica particle;wherein, the silica particle is rinsed with a solvent after contacting at least one of the hydrophobic silane or the silane coupling agent to remove impurities and to remove any of the at least one of the hydrophobic silane or the silane coupling agent that are unattached to the silica particle; andwherein the multifunctional particle is superhydrophobic and chemically reactive.2. The particle of claim 1 , wherein the silica particle comprises a diatomaceous earth particle claim 1 , a fused silica particle claim 1 , or a rice husk ash particle.3. The particle of claim 1 , wherein the ratio of the hydrophobic silane and the silane coupling agent chemically reacted with the surface of the silica particle is from 5:1 to 3:1.4. The particle of claim 1 , wherein the silane coupling agent is selected from the group consisting of amino-functional hydrocarbon silanes claim 1 , N-(6-aminohexyl)-3-aminopropyltrimethoxysilane claim 1 , aminohexylaminoethyltrimethoxysilane claim 1 , aminopropyltrimethoxysilane claim 1 , aminopropyltriethoxysilane claim 1 , N-(2-Aminoethyl)-3-aminopropyl-trimethoxysilane claim 1 , methyacryloxypropyl-trimethoxysilane claim 1 , and combinations thereof.5. The particle of claim 1 , wherein the silane coupling agent comprises amine silanes claim 1 , olefin silanes claim 1 , anhydride silanes claim 1 , ...

FLOW METER AND REFLECTOR

Disclosed is a flow meter comprising at least two measuring sensors spaced apart from each other, preferably ultrasonic sensors, whose measuring signals are reflected by a deposition-resistant reflector. 19.-. (canceled)10. A flow meter comprising a measuring channel adapted to be inserted in a pipe section through which fluid is flowing , in which measuring channel at least two ultrasonic sensors are arranged , wherein a reflector is arranged at a transverse wall of the measuring channel remote from the ultrasonic sensors , the reflector having a deposition-resistant surface structure , wherein a deposition resistance of the reflector is achieved by a bionic structure.11. The flow meter according to claim 10 , wherein the bionic structure has a sharkskin effect.12. The flow meter according to claim 10 , wherein the bionic structure has a lotus effect.13. The flow meter according to claim 10 , wherein the bionic structure has a rice leaf effect.14. The flow meter according to claim 10 , wherein the bionic structure has a combination of a sharkskin effect and/or a lotus effect and/or a rice leaf effect.15. The flow meter according to claim 10 , wherein the measuring channel has an oval shape.16. The flow meter according to claim 10 , wherein the reflector is inserted to be flush with the measuring channel and/or is inserted in a pocket of the measuring channel.17. The reflector according to claim 10 , wherein the reflector has a deposition-resistant surface.18. The reflector according to claim 17 , adapted for use in the flow meter. This application is a national stage of, and claims priority to, Patent Cooperation Treaty Application No. PCT/EP2018/071396, filed on Aug. 7, 2018, which application claims priority to German Application No. DE 10 2017 118 020.6, filed on Aug. 8, 2017, which applications are hereby incorporated herein by reference in their entireties.Disclosed is a flow meter for measuring the flow of fluids in a pipeline or the like and to a reflector ...

ANTIFOULING STRUCTURE AND AUTOMOTIVE COMPONENT USING ANTIFOULING STRUCTURE

The antifouling structure of the present invention includes a porous structural layer and a non-volatile liquid in pores and/or on a surface of the porous structural layer. The porous structural layer includes a modified portion at least at a surface part of the porous structural layer, and the elemental ratio of fluorine to silicon (F/Si) in the surface part is within the range of 3 to 50. 111-. (canceled)12. An antifouling structure , comprising: 'wherein', 'a porous structural layer; and a non-volatile liquid in pores and/or on a surface of the porous structural layer,'}an average diameter of the pores is within the range of 10 nm to 50 nm,the porous structural layer comprises a modified portion at least at a surface part of the porous structural layer, andan elemental ratio of fluorine to silicon (F/Si) in the surface part is within the range of 3 to 50.13. The antifouling structure , comprising 'wherein', 'a porous structural layer; and a non-volatile liquid in pores and/or on a surface of the porous structural layer,'}the porous structural layer comprises a modified portion at least at a surface part of the porous structural layer, andthe elemental ratio of fluorine to silicon (F/Si) in the surface part is within the range of 3.3 to 7.1.14. The antifouling structure according to claim 13 , wherein an average diameter of the pores is within the range of 10 nm to 100 nm.15. The antifouling structure according to claim 12 , wherein the modified portion contains an alkoxy oligomer having a fluoride functional group.16. The antifouling structure according to claim 12 , wherein the porous structural layer is made of an inorganic material mainly composed of silicon oxide.17. The antifouling structure according to claim 12 , wherein a surface roughness (Ra) of the porous structural layer is within the range of 10 nm to 1000 nm.18. The antifouling structure according to claim 12 , wherein the non-volatile liquid has an evaporation loss in an environment of 120° C. ...

DURABLE SUPERHYDROPHOBIC SURFACES

Durable superhydrophobic components have a superhydrophobic material disposed (e.g., disposed) thereon that exhibits an apparent advancing dynamic contact angle of ≥about 150° and a roll-off angle of about ≤15° for water after at least 100 abrasion cycles. The superhydrophobic material may comprise a low surface energy material and a polymeric material. The superhydrophobic material may be self-healing and capable of recovering its wettability after damage. In yet other aspects, a component comprises a surface that is superhydrophobic and reduces drag in turbulent flow conditions. The surface has an apparent advancing dynamic contact angle of ≥about 150° and a roll-off angle of ≤about 15° for water, and a product of dimensionless roughness (k) and a higher-pressure contact angle hysteresis of less than or equal to about 5.8. Methods of making such materials are also provided. 1. A durable superhydrophobic component comprising a surface having a superhydrophobic material disposed thereon that exhibits an apparent advancing dynamic contact angle of greater than or equal to about 150° for water and a roll-off angle of less than or equal to about 15° for water after at least 100 abrasion cycles.2. The durable superhydrophobic component of claim 1 , wherein the surface has a superhydrophobic potential (P*) less than or equal to about 1.3. The durable superhydrophobic component of claim 1 , wherein the superhydrophobic material comprises a low surface energy material and a polymeric material claim 1 , wherein a miscibility parameter (S*) for the low surface energy material and the polymeric material is less than about 1.4. The durable superhydrophobic component of claim 3 , wherein the low surface energy material is selected from the group consisting of: octakis(1H claim 3 ,1H claim 3 ,2H claim 3 ,2H-heptadecafluorodecyl) polyhedral oligomeric silsesquioxane (F-POSS) claim 3 , octakis(1H claim 3 ,1H claim 3 ,2H claim 3 ,2H-tridecafluorooctyl) polyhedral oligomeric ...