ПРОДУКТ С ТВЕРДОЙ ПОВЕРХНОСТЬЮ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Настоящее изобретение относится к термоотверждаемому материалу с твердой поверхностью, а также к способу его получения. Указанный термоотверждаемый материал получен из жидкой композиции, содержащей по меньшей мере один полиол, по меньшей мере один металлосодержащий катализатор, по меньшей мере один изоцианат и расширяемые полимерные микросферы. Диаметр полимерных микросфер увеличивается в 2-5 раз по отношению к нерасширенному состоянию. Полиол представляет собой простой полиэфир, сложный полиэфир, полиол на основе поликарбоната или полиол на основе макрогликоля. Количество полиола составляет от 4 до 20% по массе относительно композиции. Термоотверждаемый материал с твердой поверхностью является жестким, непрозрачным или полупрозрачным и частично расширенным, сохраняя при этом твердые участки. 2 н. и 14 з.п. ф-лы, 4 ил., 5 табл., 5 пр.

РАСШИРЯЮЩИЕСЯ ПОКРОВНЫЕ КОМПОЗИЦИИ И ИХ ПРИМЕНЕНИЕ

Изобретение предлагает устойчивые к ударам и/или теплоизоляционные покровные композиции для защитных упаковок. В частности, защитные упаковки включают конверты, подушечки и пакеты с боковыми складками, в которых содержатся хрупкие и/или скоропортящейся предметы в процессе транспортировки или почтовой пересылки. Описана покровная композиция, содержащая: (a) полимер на водной основе, изготовленный путем эмульсионной полимеризации; (b) множество расширяющихся микросфер, имеющих температуру Tначала расширения и температуру Tмаксимального расширения; и (c) необязательную добавку, в которой полимер имеет модуль упругости, составляющий менее чем 0,3 МПа, и значение tanδ, составляющее более чем 0,35 в средней точке между Tи Tрасширяющихся микросфер, т.е. при [T+(T-T)/2]. Также описаны способ изготовления изделия и защитное упаковочное изделие. Технический результат состоит в повышении устойчивости к ударам, прочности и теплоизоляционных свойств защитных упаковок. 4 н. и 6 з.п. ф-лы, 3 табл.

КАУЧУКОВАЯ КОМПОЗИЦИЯ ДЛЯ ПРОТЕКТОРА ШИНЫ

Изобретение относится к каучуковой композиции для протектора шины, способу изготовления ее, а также к нешипованной шине. Каучуковая композиция содержит диеновый каучук, от 1 до 20 весовых частей вальцуемого кремнекаучукового компаунда, от 0,2 до 20 весовых частей термически расширяемых микрокапсул и от 10 до 100 весовых частей наполнителей, содержащих кремнезем и углеродную сажу, на 100 весовых частей диенового каучука. Композиция также содержит от 3 до 15 вес.% силанового связывающего агента относительно общего количества кремнезема, введенного в вулканизированную каучуковую композицию. При этом вальцуемый кремнекаучуковый компаунд содержит кремнезем, а твердость каучука вальцуемого кремнекаучукового компаунда составляет от 10 до 50. Изобретение обеспечивает улучшенные характеристики трения шин на льду, превосходя обычные показатели. 3 н. и 4 з.п. ф-лы, 1 ил., 5 табл., 25 пр.

Вспениваемое изделие

... 1. Изделие, содержащее:удлиненную сердцевину, содержащую первый материал и имеющую первый и второй концы и наружную основную поверхность; инаружный слой, содержащий второй материал и покрывающий по меньшей мере часть наружной основной поверхности удлиненной сердцевины, при этом второй материал содержит неактивированный пенообразователь с расширяющимися сферами и неактивированный химический пенообразователь;при этом неактивированные пенообразователи могут быть активированы для увеличения объема наружного слоя, и сердцевина имеет жесткость, которая больше, чем жесткость наружного слоя.2. Изделие по п. 1, отличающееся тем, что второй материал содержит от 0,5% по весу до 3% по весу неактивированного химического пенообразователя.3. Изделие по п. 1, отличающееся тем, что второй материал содержит от 0,5% по весу до 9,5% по весу неактивированного пенообразователя с расширяющимися сферами.4. Изделие по п. 1, отличающееся тем, что второй материал содержит от 90% до 99% по весу стирол-этилен-бутилен-стирола ...

ПОЛИУРИТАНОВАЯ СИСТЕМА И СПОСОБ ПРОИЗВОДСТВА ВСПЕНЕННЫХ ОБУВНЫХ ИЗДЕЛИЙ НИЗКОЙ ПЛОТНОСТИ С ЦЕЛЬНОЙ ОБОЛОЧКОЙ

... 1. Жидкая полиуретановая реактивная система для производства обувных изделий с цельной оболочкой, включающей по меньшей мере один полиол, предназначенный для реакции с по меньшей мере одним изоцианатным форполимером, расширяющий агент, добавки, включающие катализатор и расширяемые микросферы, отличающаяся тем, что количество расширяемых микросфер находится в пределах от 1,0 до 30 вес.% в расчете на вес указанных полиола и присадок, а количество расширяющего агента находится в пределах от 0,15 до 3,5 вес.% в расчете на вес указанных полиола и присадок. 2. Полиуретановая система по п.1, отличающаяся тем, что упомянутым расширяющим агентом является вода. 3. Полиуретановая система по п.2, отличающаяся тем, что количество расширяемых микросфер находится в пределах от 1,5 до 20 вес.% в расчете на вес указанных полиола и добавок, а количество воды находится в пределах от 0,75 до 3,0 вес.% в расчете на вес указанных полиола и добавок. 4. Полиуретановая система по п.3, отличающаяся тем, что количество ...

СПОСОБНЫЕ РАСШИРЯТЬСЯ И РАСШИРЕННЫЕ ТЕРМОПЛАСТИЧНЫЕ МАТЕРИАЛЫ И СПОСОБЫ ИХ ПОЛУЧЕНИЯ

Schäumbare thermoplastische Zusammensetzung, die flüchtige Treibmittel und expandierbare Mikrokugeln enthält

A syntactic phenolic foam composition

System and method for selecting a driveline gear ratio

A method for selecting a gear ratio for a driveline of vehicle is provided. The method comprises gathering information relating to one or more parameters associated with the vehicle 102 and anticipating, based on the gathered information 106, an occurrence of an event relating to the vehicle for which a change in driveline gear ratio is needed. The anticipated even may be a speed change as requested by a cruise control user interface. The method further comprises identifying a suitable driveline gear ratio for the anticipated event 108, generating a command signal representative of a request to change the gear ratio of the driveline to the identified gear ratio 112, and communicating the command signal to a driveline subsystem of the vehicle 114. Preferably the information gathering step may relate to the nature of the terrain over which the vehicle is travelling.

Syntactic foam

There is provided a method of selectively depositing a syntactic foam, i) selecting a low density polymer with a density in the range of from 0.8 to 1.2 g/cm3, ii) forming an admixture of a pre-polymer 50-95%vol that will form the said low density polymer, and hollow microspheres in the range of from 5- 50%vol; iii) selectively depositing the admixture via a nozzle to form a layer, causing solidification of the polymer, repeating step iii) to form the device on the substrate wherein the syntactic foam has a density in the range of from 0.3 to 0.9g/cm3. Preferably the deposition process produces cavities with no syntactic foam which decreases the density of the syntactic foam. The polymer may be a thermoset polymer, particularly an epoxy, or a thermoplastic polymer chosen from polyamide, polypropylene, high density polyethylene, low density polyethylene or polyetherimide. The microspheres may be glass, ceramic, polymer or metal spheres. Flotation devices and vehicles using the foams are ...

EXPAND-CASH THERMOPLASTIC GEL COMPOSITION

PARTIALAROMATIC COPOLYAMIDE WITH HIGH CRYSTALLINITY

GESCHLOSSENPORIGE HALBZEUGE UND FORMSTOFFE

VORMISCHUNG AND FOAMING OF POLYMERS MICRO SPHERES

SILICONE FOAM RUBBER COMPOSITION

Method of making an earplug

A method of making personal protective equipment, such as a push- in earplug, is disclosed. The method includes the steps of covering a substrate (310) with an outer layer (330) that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold (370), and activating the foaming agent such that a portion of the outer layer expands.

Expandable coating compositions and use thereof

The present invention is directed to impact resistant and/or thermally insulative coating compositions for protective packages. Particularly, the protective packages include envelopes, pillows and Gusseted bags that house fragile and/or perishable objects during transport or mailing. The coating composition, upon heat or radiation trigger, expands at least 2500% in volume. The protective packages coated with the coating composition provide impact resistance, high strength, thermal insulation and light-weighting.

Rubber structure and method of making the same

Articles that include a polymer foam and method for preparing same

EXPANDABLE THERMOPLASTIC POLYMER PARTICLES AND METHOD FOR MAKING THE SAME

... ▓▓▓An improved process for manufacture of expandable polymer particles is ▓provided. The continuous process disclosed produces expandable polymer pellets ▓in a single step while eliminating many of the dangers inherent in processes ▓of prior art employed for the same. The polymers produced herein are of ▓uniform size, and may be molded into various articles of manufacture using ▓existing equipment and techniques known to those skilled in the art.▓ ...

FOAMED THERMOPLASTIC POLYURETHANES

Process for the preparation of foamed thermoplastic polyurethanes characterised in that the foaming of the thermoplastic polyurethane is carried out in the presence of thermally expandable microspheres.

FOAMED RUBBER STRUCTURE AND METHOD OF MAKING THE SAME

A foamed rubber having a plurality of microvoids comprising microspheres incorporated therein characterised in that the microspheres are expanded during heating and vulcanisation of the rubber and the volume fraction of the expanded microspheres is 35-80% in the foamed rubber. The microspheres may be thermoplastic microspheres filled with a volatile liquid. The microspheres may have an unexpanded diameter of 5 to 10 .mu.m and an expanded diameter of between 300 .mu.m and 1000 .mu.m. Also disclosed is a method of manufacture of a rubber comprising the steps of: providing a rubber; incorporating additives; adding and mixing microspheres into the rubber composition; and heating the rubber to effect vulcanisation. The vulcanisation of the rubber may be delayed to allow for expansion of expandable microspheres during heating, such a delay may be achieved by adding a delayed action accelerator or a retarder to the rubber.

FOAM INSULATION MADE WITH EXPANDABLE MICROSPHERES AND METHODS

A polyurethane and/or polyisocyanurate foam is made using expandable microspheres which encapsulate a primary blowing agent. By expanding during the foam making process, the microspheres function as a blowing agent. The foam preferably has at least 10% by weight expandable micro spheres which encapsulate a non-halogenated hydrocarbon chemical or a non-halogenated hydrocarbon chemical blend and less than 2% by weight of any non-encapsulated blowing agents.

INORGANIC FILLED LIGHTWEIGHT POLYURETHANE COMPOSITES

Provided are construction products with a density in the range from about 10 pcf to about 125 pcf and comprising an inorganic filler cross-linked in a polyurethane matrix produced by an exothermic reaction between at least one alcohol having two or more reactive hydroxyl groups per molecule and at least one isocyanate having more than one reactive isocyanate group per molecule, wherein a molar ratio of the alcohol to the isocyanate is in the range from 0.25:1 to 5:1. Methods for making the products are provided as well.

APPARATUS AND METHOD FOR EXPANDING THERMALLY EXPANDABLE THERMOPLASTIC MICROSPHERES TO EXPANDED THERMOPLASTIC MICROSPHERES

An apparatus and a method for expanding a slurry of thermally expandable thermoplastic microsphere is disclosed. The apparatus and method expand the slurry of thermally expandable thermoplastic microsphere without any direct contact to a fluid heat transfer medium. The apparatus and method utilise a distribution pipe attached to an outlet pipe.

METHOD AND APPARATUS FOR MODIFYING POLYMER COMPOSITIONS

A system for applying a melted polymer/hot melt adhesive includes structure for adding one or more components to the polymer/hot melt stream at selected locations of the stream depending on the desired final characteristics of the polymer/hot melt adhesive, the heat histories of the polymer/hot melt adhesive and the modifying component, and the physical or chemical characteristics of the modifying component. The modifying component can be supplied in a fluid carrier.

Pneumatische Zylinder-Kolbeneinheit für ein Bremsgestänge eines Schienenfahrzeuges

Composition pour protection temporaire et méthode associée.

La composition (1) de la présente invention comprend un premier élément ou ensemble d'éléments (E1) pouvant réagir dans des premières conditions prédéterminées (C1) pour produire une première transformation (B) de la composition (1) en une composition (1'). La composition (1) comprend en outre un second élément ou ensemble de seconds éléments (E2) pouvant réagir dans des secondes conditions prédéterminées (C2) différentes des premières conditions prédéterminées (C1) pour produire une seconde transformation de la composition (1') en une composition (1"). La composition (1) est utilisée comme moyen de protection temporaire des pièces manufacturées. La présente invention couvre également un procédé de protection temporaire de pièces manufacturées au moyen de la composition (1).

КОМПОЗИЦИИ ПОЛИСТИРОЛА, СПОСОБЫ ИХ ПОЛУЧЕНИЯ И ПРИМЕНЕНИЯ

Предложен способ, включающий соединение полистирола с сажей и вспениваемыми микросферами с образованием композиции и вспенивание микросфер для вспенивания композиции. Также предложена вспененная композиция, включающая полистирол, сажу и вспениваемые микросферы. Предложенные полистирольные композиции обладают улучшенными механическими свойствами.

ЖИДКАЯ ПОЛИУРЕТАНОВАЯ РЕАКТИВНАЯ СИСТЕМА ДЛЯ ПРОИЗВОДСТВА ОБУВНЫХ ИЗДЕЛИЙ С ЦЕЛЬНОЙ ОБОЛОЧКОЙ, СПОСОБ ПРОИЗВОДСТВА ВСПЕНЕННЫХ ОБУВНЫХ ИЗДЕЛИЙ С ЦЕЛЬНОЙ ОБОЛОЧКОЙ И ПЕНОПОЛИУРЕТАНОВЫЙ КОМПОНЕНТ ОБУВИ

Вспененные продукты со спонтанной плотностью от 0,05 до 0,22 получают реакцией по меньшей мере одного полиола с по меньшей мере одним изоцианат-форполимером в присутствии некоторого количества расширяемых микросфер в пределах от 1,0 до 30 % мас. в расчете на массу указанного полиола и некоторого количества расширяющего агента, который составляет от 0,5 до 1 количества микросфер, и осуществлением стадии расширения полимера при температуре, достаточной для того, чтобы вызвать расширение микросфер.

METHOD OF FORMING SHOE SOLE FROM A VULCANIZED FOAM RUBBER AND CORRESPONDING SHOE SOLE FROM A VULCANIZED FOAM RUBBER

Articles that include polymer foam and method for preparing same

Comprising the foamed poly lactic acid product and its manufacturing method

Mixed-foam

FORMULATIONS FOR DIRECT OBTAINING EXPANDED SHEETS, CALANDREES OR LAMINEES, MANUFACTORING PROCESS OF THESE SHEETS USING THESE FORMULATIONS AND CORRESPONDING SHEETS OBTAINED

Formulation pour l'obtention directe de feuilles expansées, calandrées ou laminées, comprenant : (A) au moins un polymère de matrice choisi parmi les polychlorures de vinyle (PVC) obtenus par polymérisation en masse ou en suspension ayant une valeur de K allant de 50 à 90 et, de préférence, comprise entre 57 et 65, les PVC chlorés ayant un indice de viscosité, mesuré selon la norme ISO R 174 (NFT 51-013) allant de 60 à 200 cm3 /g; et (B) au moins un agent d'expansion constitué par des microsphères polymériques contenant un liquide ou un gaz dilatable, par exemple des microsphères en polymère thermoplastique, par exemple acrylique, remplies d'isopentane.

COMPOSITIONS FOR HEAT-RECOVERABLE FOAM TUBING

Provided is a melt composition for a heat shrinkable foam structure that includes at least one base polymer and a blowing agent made from at least one heat-activated chemical compound encapsulated by a plurality of polymeric shells. The melt composition may also include a crosslinking promoter or other additives. Also provided is a method for making a heat- shrinkable polymer foam tubing. A melt composition containing at least one base polymer material having a melt temperature and a blowing agent having an activation temperature is provided. The melt composition is mixed at an elevated temperature. The melt composition is then extruded through a die at a high temperature. The extruded foam tube is then processed, often heat-processed. Additionally provided is a heat shrinkable foamed polymer tube containing an inner layer and an outer layer of an extruded foamed polymer tube, where each layer is made from at least one base polymer and a blowing agent and the blowing agent includes a heat-activated ...

B-STAGEABLE OR PRE-FORMED UNDERFILL ENCAPSULANT HAVING SUFFICIENT FLOWABILITY TO PROVIDE GOOD ADHESION WHILE INDIVIDUAL CHIP IS FINALLY ADHERED TO SUBSTRATE

PURPOSE: An underfill encapsulant is provided to be used to apply a chip scale package to a substrate, to be B-stageable or to be capable of being formed into film, and to have sufficient flowability to form fillet and to impart good adhesion between a chip and a substrate. CONSTITUTION: The expandable thermoplastic or thermosetting underfill encapsulant is used to encapsulate at least one electronic part(1) adhered to at least one substrate(4) with solders(2) reflowable at reflow temperature. The underfill encapsulant comprises (a) a high-molecular-weight solid resin system including a thermoplastic polymer resin or thermosetting resin, at least one catalyst, and optionally at least one phenoxy-containing compound, (b) at least one expandable filler, and (c) optionally at least one material selected from the group consisting of a surfactant, a coupling agent, a reactive diluent, an air release agent, a flow additive, an adhesion accelerator, a solvent, and mixtures thereof. The underfill ...

열팽창성 열가소성 마이크로스피어 및 이의 제조 방법

... 본 발명은 열팽창성 열가소성 마이크로스피어의 제조 방법에 관한 것이다. 이러한 방법은 열가소성 중합체의 형성을 위한 중합에 적합한 단량체 물질과 하나 이상의 발포제의 혼합물을 제공하는 단계, 이러한 혼합물에, 적어도 소수성 오르가노실란기에 의해 표면-변형된 콜로이드 실리카를 제공하여 에멀젼을 형성하는 단계를 포함한다. 중합이 수행되어, 열팽창성 열가소성 마이크로스피어가 형성된다. 나아가, 본 발명은 열팽창성 열가소성 마이크로스피어, 팽창된 마이크로스피어, 및 생성물의 제조에서 이들의 용도에 관한 것이다.

EXPANDABLE COATING COMPOSITIONS AND USE THEREOF

Foamed adhesive, more particularly pressure-sensitive adhesive, process for the production and also the use thereof

HYBRID FOAM

The invention relates to highly elastic polyurethane foams which are suitable as functional materials having heat-insulating properties.

MICROSPHERES

The present invention relates to thermally expandable thermoplastic microspheres comprising a polymer shell made from ethylenically unsaturated monomers encapsulating a propellant, said ethylenically unsaturated monomers comprising from 21 to 80 wt% of methacrylamide and from 20 to 70 wt% methacrylonitrile, the total amount of methacrylamide and methacrylonitrile being from 70 to 100 wt% of the ethylenically unsaturated monomers. Furthermore, the invention relates to production and use of such microspheres.

PUSH-IN EARPLUG

A push-in earplug (100) including an elongate core (110) and outer layer (120) is disclosed. The outer layer includes a sound attenuating portion (121) having a first average density and a stem portion (122) having a second average density, and the second average density is greater than the first average density.

EXPANDED AND EXTRUDED BIODEGRADABLE AND REDUCED EMISSION FOAMS MADE WITH METHYL FORMATE-BASED BLOWING AGENTS

Expanded and extruded biodegradable polymer foams are obtained using biodegradable polymers and environmentally benign non-VOC methyl formate as a blowing agent. The blowing agent can be a blend further including at least one co- blowing agent, preferably an environmentally friendly species (e.g., non-soc), which is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s), water or any combination thereof), or a chemical co-blowing agent, or combinations thereof. The blowing agent blend can include any combination of methyl formate and one or more co-blowing agents. The polymer foam can include a biodegradable polymer or its blends with other biodegradable polymers or conventional (non-biodegradable) polymers. The methyl formate-based blowing agent blends produce stable foams for various applications, including containers, packaging systems, as well as for insulation and protective cushioning. Processes ...

METHOD FOR PRODUCING A PLASTIC COMPOSITE BODY AND PLASTIC COMPOSITE BODY

The invention relates to a housing surrounding an electric circuit (7), comprising a shell material (22) and at least one coating material (23), covering said electric circuit (7). The coating material (23) and the shell material (22) have the same chemical base.

MULTI-DENSITY FLEXIBLE FOAM

A multi-density foam material and method of manufacturing thereof comprises combining in a mold a polyol mixture with an isocyanate mixture in a ratio of about .2 to 1.0 parts by weight of the polyol mixture, with expandable beads in an amount of about .1 to 1.5 parts per weight of the polyol mixture. The polyol mixture and the isocyanate mixture react exothermically to form a flexible foam, and heat generated from the reaction causes the expandable beads to at least partially expand, but the mold is at a temperature below that where significant expansion of the expandable beads occurs. The resulting foam material has a center with a first density, and an exterior edge with a second density different than the first density.

COMPOSITION AND PROCESS FOR THE REALIZATION OF LOW DENSITY EXPANDED PRODUCTS

Foam products with densities between 0.10 and 0.28 are obtained by reacting at least one polyol with at least one isocyanate-prepolymer, in the presence of an amount of expandable microspheres within the range of 0.5 to 10% by weight on the weight of said polyol and an amount of expanding agent which is from 0.5 to 4,0 times the amount normally used for such polyol/isocyanate-prepolymer systems, and carrying out the polymer expansion step at a temperature which is sufficient to cause the substantially simultaneous expansion of the microspheres.

EXPANDABLE POLYMERIC MICROSPHERES, THEIR METHOD OF PRODUCTION, AND USES AND PRODUCTS THEREOF

La présente invention concerne des microsphères thermoexpansibles, et les microbilles, la mousse microcellulaire ou le matériau composite expansé résultant du chauffage des microsphères. Les microsphères thermoexpansibles de l'invention se caractérisent en ce qu'ils présentent une paroi polymérique entourant une ou plusieurs poches ou particules d'un gonflant ou propulseur à l'intérieur des microsphères. La surface de la paroi polymérique peut comporter des groupes fonctionnels réactifs pouvant donner un microsphère fusible. Lorsque les microsphères sont chauffés, ils s'expansent pour former des microbilles présentant des coquilles polymériques entourant un ou plusieurs vides gazeux internes, et lorsque les microsphères sont expansés pendant qu'ils sont au contact les uns des autres, une mousse microcellulaire peut être formée. La mousse est constituée d'une pluralité de microbilles agrégées par fusion, avec le concours éventuel de groupes fonctionnels présents à la surface des microsphères ...

HEAT-EXPANDABLE MICROCAPSULES AND METHOD OF UTILIZING THE SAME

Heat-expandable microcapsules produced from acrylonitrile and an N-substituted maleimide as the major polymerizable monomers and other polymerizable monomers comprising a monomer giving a homopolymer having a Tg of 50 to 200 °C and an unsaturated carboxylic acid (or anhydride) having polymerizability; a resin foam made using the same; and a process for producing a foamed resin composite. The microcapsules are less apt to discolor even upon thermal expansion at 200 °C or higher. The resin foam and the foamed resin composite are capable of having a processed surface, e.g., a matte surface giving a bulky feeling.

Method of Preparing Superabsorbent Polymer

Provided is a method of preparing a superabsorbent polymer. More specifically, provided is a method of preparing a superabsorbent polymer capable of exhibiting improved initial absorbency and a rapid absorption rate by polymerizing monomers having acidic groups, of which part is neutralized with a basic material including potassium hydroxide, in the presence of an encapsulated foaming agent.

Energy absorbing flexible foam

An energy absorbing foam capable of passing FMVSS 202A, parts 2.6 and 2.7 and a method of manufacturing such foam are disclosed. Such energy absorbing foams are produced by combining, preferably in a mold, a polyol component with an isocyanate component at an NCO Index of from about 10 to about 120. Expandable beads are included in the foam-forming mixture in an amount of from about 10 to about 150 parts by weight, per 100 parts by weight of the polyol component. The polyol component and the isocyanate component react exothermically to form a flexible foam, and heat generated from the reaction causes the expandable beads to at least partially expand, but the mold is at a temperature below that where significant expansion of the expandable beads occurs.

Expandable hollow particles

Microspheres are described which have a shell of thermally expandable polymer and a hollow interior that contains a fluorinated hydrocarbon that boils at a temperature below the melting point of the polymer, and contains an organic ester or ether or ketone. The ester or ether or ketone improves the quality of microsphere product. The expandable particles are useful in insulation, packaging, for expanding other polymer such as polytetrafluoroethylene, and the like.

Method for synthesizing thermo-expandable polymeric microspheres

The present invention is directed to thermo-expandable microspheres and to the expanded microballoons, microcellular foam or foamed composite material that results upon heating the microspheres. The thermo-expandable microsphere of the present invention is characterized by having a polymeric wall surrounding one or more pockets or particles of blowing agent or propellant within the microsphere. The polymeric wall may have reactive functional groups on its surface to give a fusible microsphere. When the microspheres are heated, they expand to form microballoons comprising polymeric shells surrounding one or more internal gaseous voids, and when the microspheres are expanded while in contact with each other, a microcellular foam may be formed. The foam consists of a plurality of microballoons fused together, optionally aided by functional groups present on the surface of the heated microspheres that act to crosslink the material. When microspheres are mixed with a matrix, which can optionally ...

POLYMER COMPOSITION BASED ON THERMOPLASTIC COPOLYESTER ELASTOMER, MANUFACTURED ARTICLE MADE WITH SUCH POLYMER COMPOSITION AND PRODUCTION PROCESS OF SUCH POLYMER COMPOSITION

The invention relates to a polymer composition based on thermoplastic copolyester elastomer comprising: —from 90% to 70% by weight of the thermoplastic copolyester elastomer containing ester and ether bonds; —from 5% to 25% by weight of one or more saturated esters with a molecular weight between about 200 and 1,000, and preferably between 300 and 380; —from 2 to 10% by weight of expanding additives. This invention also covers a manufactured article obtained by injection moulding a predefined amount of the polymer composition according to this invention, as well as a production process of such polymer composition. 1. Polymer composition based on thermoplastic copolyester elastomer comprising:from 90% to 70% by weight of the thermoplastic copolyester elastomer containing ester and ether bonds;from 5% to 25% by weight of one or more saturated esters with a molecular weight between about 200 and 1,000, and preferably between 300 and 380;from 2 to 10% by weight of expanding additives.2. Polymer composition according to claim 1 , wherein said one or more saturated esters are present in the composition from 5% to 20% by weight.4. Polymer composition according to claim 3 , wherein said alternating-structure thermoplastic copolyester elastomer is obtained by:esterification/transesterification of one or more dicarboxylic acids, of one or more esters of dicarboxylic acids and/or of one or more dimer or trimer carboxylic acids with diols and with diol polyglycols, the esters of dicarboxylic acids and the dimer or trimer carboxylic acids having a molecular weight greater than 300 and the corresponding carboxylic acid having a molecular weight less than 300; andsubsequent polycondensation of the products of esterification/transesterification.5. Polymer composition according to claim 4 , wherein the long-chain ester units are the reaction products of the esterification/transesterification of one or more diol polyglycols selected from the group consisting of: polytetramethylene ...

Foamed thermoplastic polyurethanes

Process for the preparation of foamed thermoplastic polyurethanes characterised in that the foaming of the thermoplastic polyurethane is carried out in the presence of thermally expandable microspheres.

Thermally expandable sheet and thermally expandable sheet production method

A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material and a first binder, the first thermally expansive layer having a first ratio of the first thermally expandable material with respect to the first binder; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material and a second binder, the second thermally expansive layer having a second ratio of the second thermally expandable material with respect to the second binder, wherein the first ratio is lower than the second ratio.

FOAMED ADHESIVE, MORE PARTICULARLY PRESSURE-SENSITIVE ADHESIVE, PROCESS FOR THE PRODUCTION AND ALSO THE USE THEREOF

Process for producing a pressure-sensitive adhesive comprising expanded microballoons, wherein the constituients for forming the adhesive are mixed in a first mixing assembly, the mixed adhesive is transferred into a second mixing assembly into which, at the same time, unexpanded microballoons are fed, the microballoons are expanded in the second mixing assembly or on exit from the second mixing assembly, the adhesive mixture with the expanded microballoons is shaped to a layer in a shaping assembly in which expanded microballoons which have broken through the surface are pressed into the layer surface and the layer of adhesive mixture together with the expanded microballoons are optionally applied to a weblike backing material. 1. Process for producing a pressure-sensitive adhesive which comprises expanded microballoons , whereinthe constituents for forming the adhesive are mixed in a first mixing assembly, the mixed adhesive from the first mixing assembly is transferred into a second mixing assembly, into which, at the same time, unexpanded microballoons are fed, the microballoons are expanded in the second mixing assembly or on exit from the second mixing assembly, the adhesive mixture together with the expanded microballoons is shaped to a layer in a shaping assembly in which expanded microballoons which have broken through the surface are pressed into the layer surface, and the layer of adhesive mixture together with the expanded microballoons is optionally applied to a weblike backing material.2. Process for producing a pressure-sensitive adhesive which comprises expanded microballoons , whereinthe constituents for forming the adhesive are mixed with unexpanded microballoons in a first mixing assembly under superatmospheric pressure and are heated to a temperature below the expansion temperature of the microballoons,the mixed adhesive from the first mixing assembly is transferred to a second assembly and heated to expansion temperature of the microballoons ...

Expanding medium, system and method for decorating surfaces

The invention is a decorating medium, system and method for producing relief art on substrate surfaces. The decorating medium is an acrylic emulsion based medium containing an expandable polymer which expands the medium upon heating. The acrylic emulsion is produced with a mixture of an acrylic binder and an acrylic thickener or a cellulosic thickener combined in the appropriate range to obtain a medium rheology suitable for controlled application of the medium to the substrate surfaces. The decorating medium is applied to a substrate surface in a desired pattern either directly from a storage bottle or tube equipped with a nozzle or with an applicator such as a brush, a sponge, a knife or spatula. The desired pattern is achieved by free hand or by using a stencil or mask. After the decorating medium is applied to the surface of the substrate in the desired pattern, the medium is cured and heated. The heat causes the medium to expand and creates the relief art on the surface of the substrate ...

Highly compliant non-silicone putties and thermal interface materials including the same

Disclosed are exemplary embodiments of highly compliant non-silicone putties and thermal interface materials including the same. In an exemplary embodiment, a non-silicone putty includes at least one thermally-conductive filler and at least one other filler including hollow polymeric particles in a non-silicone polymer base or matrix. The non-silicone putty may have a thermal conductivity of at least about 3 Watts per meter-Kelvin and/or may have a hardness of less than about 30 Shore 00.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОЛУЧЕННИЯ ВСПЕНЕННЫХ МИКРОСФЕР

Группа изобретений относится к способу получения вспененных термопластичных микросфер и устройству для их получения. Способ получения вспененных термопластичных микросфер из невспененных термически вспенивающихся термопластичных микросфер, включающих оболочку из термопластичного полимера, инкапсулирующую вспенивающий агент, включает подачу суспензии вспенивающихся термопластичных микросфер в жидкой среде в зону нагрева, нагрев суспензии в зоне нагрева, без непосредственного контакта со средой теплоносителя, до достижения вспенивающимися микросферами температуры от 50 до 250°С, и поддержание давления в зоне нагрева от 4 до 50 бар (0,4 до 5 МПа), чтобы микросферы в суспензии не вспенились бы полностью, отведение суспензии вспенивающихся микросфер из зоны нагрева в зону с давлением, достаточно низким для того, чтобы микросферы вспенились. Группа изобретений развита в зависимых пунктах формулы изобретения. Технический результат – вспенивание микросфер в суспензии без необходимости введения ...

Вставляемая нажатием ушная заглушка

Изобретение относится к медицинской технике, а именно к ушным заглушкам. Заглушка содержит удлиненную сердцевину и наружный слой. Удлиненная сердцевина содержит первый материал и имеет первый и второй концы и наружную основную поверхность. Наружный слой содержит второй материал и покрывает по меньшей мере часть наружной основной поверхности удлиненной сердцевины. При этом второй материал содержит расширяющиеся сферы, включающие термопластические сферы, имеющие оболочку, в которую заключен газ; при этом наружный слой содержит шумогасящую часть, имеющую первую среднюю плотность ρ, и ножку, имеющую вторую среднюю плотность ρ, и при этом ρ>1,2ρ. 2 н. и 22 з.п. ф-лы, 8 ил.

УСТРОЙСТВО И СПОСОБ ДЛЯ РАСШИРЕНИЯ ТЕРМИЧЕСКИ РАСШИРЯЕМЫХ ТЕРМОПЛАСТИЧЕСКИХ МИКРОСФЕР ДО РАСШИРЕННЫХ ТЕРМОПЛАСТИЧЕСКИХ МИКРОСФЕР

ПРОДУКТ С ТВЕРДОЙ ПОВЕРХНОСТЬЮ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

ПРОФИЛЬ ДЛЯ УПЛОТНЕНИЯ И/ИЛИ ДЕМПФИРОВАНИЯ

... 1. Профиль для уплотнения и/или демпфирования для использования в туннелестроении, подземном строительстве, возведении верхних строений ж/д путей и/или для фасадов с окнами, причем профиль (1) состоит из поперечносшитого эластомера и эластичных микросфер (2), доля которых не превышает двух процентов по весу.2. Профиль по п.1, отличающийся тем, что профиль (1) по сравнению с уплотняющим и изолирующим профилем без микросфер, применяющимся в тех же целях, обладает примерно той же твердостью.3. Профиль по п.1 или 2, отличающийся тем, что доля эластичных микросфер (2) составляет 0,25-2 процента по весу, предпочтительно 0,25-1,5 процента по весу, еще более предпочтительно 0,25-1,0 процента по весу, еще более предпочтительно 0,25-0,75 процента по весу, наиболее предпочтительно 0,25-0,5 процента по весу, 0,25-0,4 процента по весу или 0,25-0,3 процента по весу.4. Профиль по п.1 или 2, отличающийся тем, что микросферы (2) имеют средний диаметр, равный 40-120 мкм, предпочтительно 40-80 или 80-120 ...

Вставляемая нажатием ушная заглушка

... 1. Ушная заглушка, содержащая:удлиненную сердцевину, содержащую первый материал и имеющую первый и второй концы и наружную основную поверхность; инаружный слой, содержащий второй материал и покрывающий по меньшей мере часть наружной основной поверхности удлиненной сердцевины;при этом наружный слой содержит шумогасящую часть, имеющую первую среднюю плотность ρ, и ножку, имеющую вторую среднюю плотность ρ, и при этом ρ2>1,2ρ.2. Ушная заглушка по п. 1, отличающаяся тем, что ρ>1,5ρ.3. Ушная заглушка по п. 1, отличающаяся тем, что ρсоставляет от 100 кг/мдо 180 кг/м.4. Ушная заглушка по п. 1, отличающаяся тем, что ρсоставляет от 200 кг/мдо 300 кг/м.5. Ушная заглушка по п. 1, отличающаяся тем, что наружный слой термически скреплен по меньшей мере с частью наружной основной поверхности удлиненной сердцевины.6. Ушная заглушка по п. 1, отличающаяся тем, что между наружной основной поверхностью удлиненной сердцевины и наружным слоем отсутствует адгезив.7. Ушная заглушка по п. 1, отличающаяся тем, ...

Kautschukzusammensetzung für Reifenlauffläche, Verfahren zum Herstellen der Kautschukzusammensetzung, vulkanisiertes Produkt und dessen Verwendung in einem Laufflächenabschnitt

Kautschukzusammensetzung für eine Reifenlauffläche, umfassend:einen Dienkautschuk, von 1 bis 20 Gewichtsteile einer fräsbaren Silikonkautschukverbindung und von 0,2 bis 20 Gewichtsteile einer thermisch expandierbaren Mikrokapsel, pro 100 Gewichtsteile des Dienkautschuks, wobei die fräsbare Silikonkautschukverbindung Silica enthält, eine durchschnittliche Glasübergangstemperatur des Dienkautschuks bei -50 °C oder niedriger liegt und eine Kautschukhärte der fräsbaren Silikonkautschukverbindung von 10 bis 50 beträgt.

VERNETZTER UND GESCHÄUMTER DRUCKHAFTKLEBER SOWIE VERFAHREN ZUR HERSTELLUNG DESSELBEN

A component matrix

Adhesive

Composite material formation

COHERENT INSERTION

SILICONE FOAM RUBBER COMPOSITION AND EXPAND-CASH SPONGE

GESCHLOSSENPORIGE HALBZEUGE UND FORMSTOFFE

EXPANDED AND EXTRUDED BIOLOGICAL DEGRADABLE ONE FOAM WITH REDUCED EMISSION MANUFACTURED USING BLOWING MEANS ON BASIS OF METHYL FORMATE

SYSTEM FOR POLYURETHAN-FOAM MATERIALS OF LOW DENSITY WITH CONSOLIDATED EDGE ZONE, MANUFACTURED USING EXPAND-CASH MICRO BALLS AND WATER AS COTREIBMITTEL

EXPAND-CASH THERMOPLASTIC PU BLENDS

ZUSAMMENSETZUGEN FOR HEATRESET-CASH FOAM MATERIAL HOSES

VERBUNDPLATTE MIT EINEM SCHAUMKERN

TIFF 00000005.TIF 294 208 ...

THERMOPLASTIC PU

PROCEDURE FOR EXPANDING A GEL

FOAMED THERMOPLASTIC PU

Methods of improving lofting agent retention using bicomponent fibers

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

Method of making an earplug

A method of making personal protective equipment, such as a push- in earplug, is disclosed. The method includes the steps of covering a substrate (310) with an outer layer (330) that includes an unactivated foaming agent, positioning at least a portion of the outer layer in a mold (370), and activating the foaming agent such that a portion of the outer layer expands.

Foam composites

Polystyrene-phenolic foam composites and precursor compositions comprising expandable polystyrene particles, phenolic resole resin, expandable thermoplastic microspheres, and acidic catalyst are disclosed. The composites exhibit excellent flame resistance properties and may be suitably prepared in standard expanded polystyrene processing equipment.

Foam composites

Polystyrene-phenolic foam composites and precursor compositions comprising expandable polystyrene particles, phenolic resole resin, expandable thermoplastic microspheres, and acidic catalyst are disclosed. The composites exhibit excellent flame resistance properties and may be suitably prepared in standard expanded polystyrene processing equipment.

LIQUID SILICONE RUBBER COMPOSITION AND METHOD FOR MANUFACTURE AND METHOD FOR MANUFACTURING FOAMED SILICONE RUBBER

... ▓▓A liquid silicone rubber composition that is easy to work with in mixing and ▓that▓upon curing becomes a foamed silicone rubber with a low specific gravity and ▓low▓thermal conductivity, a method for manufacturing this composition, and a ▓method for▓manufacturing a foamed silicone rubber. The liquid silicone rubber composition▓comprises a liquid silicone rubber base compound produced by mixing (A) a ▓liquid▓diorganopolysiloxane and an optional inorganic filler with (B) a thermoplastic ▓resin▓hollow-particle powder that expands when heated and performing a heat ▓treatment at a▓temperature sufficient to cause expansion of component B and adding to the ▓base▓compound (C) a curing agent in an amount sufficient to cure the liquid▓diorganopolysiloxane.▓ ...

WATER-BASED COATING-TYPE DAMPING MATERIAL

This invention provides a water-based coating-type damping material whereby detachment or deformation of a sealer can be prevented and anti-blister performance can be improved. Such water-based coating-type damping material comprises at least an aqueous resin emulsion, an inorganic filler, a water retention agent that retains the moisture of the resin emulsion, and microballoon particles comprising balloons encapsulating an expansion agent that is evaporated by heating so as to expand, the microballoon particles starting to expand in the presence of the expansion agent under heating temperature conditions of the water boiling point or lower.

FOAMABLE THERMOPLASTIC VULCANIZATE BLENDS, METHODS, AND ARTICLES THEREOF

METHOD AND A DEVICE FOR PREPARATION OF EXPANDED MICROSPHERES

The invention relates to a method and a device for the preparation of expanded thermoplastic microspheres from unexpanded thermally expandable thermoplastic microspheres comprising a thermoplastic polymer shell encapsulating a blowing agent. The method comprises: (a) feeding a slurry of such expandable thermoplastic microspheres in a liquid medium into a heating zone; (b) heating the slurry in the heating zone, without direct contact with any fluid heat transfer medium, so the expandable microspheres reach at least a temperature at which they would have started to expand at atmospheric pressure, and maintaining a pressure in the heating zone sufficiently high so the microspheres in the slurry do notfullyexpand; and, (c) withdrawing the slurry of expandable microspheres from the heating zone into a zone with a pressure sufficiently low for the microspheres to expand.

FOAMED THERMOPLASTIC POLYURETHANES, A PROCESS FOR PREPARING THEREOF AND A REACTION SYSTEM

ХИМИЧЕСКИЕ КОМПОЗИЦИИ, СПОСОБЫ ИХ ПОЛУЧЕНИЯ, ПРИМЕНЕНИЕ И ИЗДЕЛИЕ

Изобретение относится к твердой порошковидной композиции, которая включает в себя нерасширенные терморасширенные микросферы, которые включают термопластическую полимерную оболочку, инкапсулирующую пропеллент, и приблизительно от 0,1 приблизительно до 50 % масс., по меньшей мере, одного ингибитора, который выбирается из группы, которая состоит из кислот, которые имеют точку плавления, низшую приблизительно 200 °С, и их предшественников. Изобретение дополнительно относится к ее получению и применению, композиции, содержащей полимерную смолу, ее получению, способу изготовления полимерной смолы и материала, который получается из нее.

APPLICATION GEO-POLYMERIC ADDITIVE IN COMBINATION WITH NEBROMIROVANNYM RETARDANT IN POLYMER FOAM

ТЕРМОПЛАСТИЧНЫЕ ТЕРМОРАСШИРЯЮЩИЕСЯ МИКРОСФЕРЫ, СПОСОБ ИХ ПОЛУЧЕНИЯ ИСПОЛЬЗОВАНИЯ, ВОДНАЯ СУСПЕНЗИЯ, КОТОРАЯ ИХ СОДЕРЖИТ, И СПОСОБ ПОЛУЧЕНИЯ БУМАГИ

Изобретение касается термопластичных терморасширяющихся микросфер, включающих полимерную оболочку, изготовленную из этиленненасыщенных мономеров, инкапсулирующую пропеллент, причем этиленненасыщенные мономеры включают от 20 до 80 вес. % акрилонитрила и от 1 до 70 вес.% простого винилового эфира, который имеет только одну углерод-углеродную двойную связь, причем общее количество акрилонитрила и простого винилового эфира, который имеет только одну углерод-углеродную двойную связь, составляет от 30 до 100 вес. % этиленненасыщенных мономеров.

Curable compositions, processes for using such compositions to prepare composites and processes for preparing composites having superior surface finish and high fiber consolidation

Curable compositions, such as oxazine-based ones, are useful in applications within the aerospace industry, such as for example as a thermosetting resin composition for use as a matrix resin in processes, such as resin transfer molding, vacuum assisted transfer molding, resin film infusion, prepregging and towpregging, where the composites or laminates so prepared have superior surface finish and high fiber consolidation.

Foamable article

A foamable article is disclosed. The article includes a substrate and an outer layer covering at least a portion of the substrate and including an unactivated expandable sphere foaming agent and an unactivated chemical foaming agent. The unactivated foaming agents may be activated to increase the volume of the outer layer.

MULTI-LAYER PRODUCT

Multilayer product comprising at least one layer of an acrylate-based foam carrier (S); and a multiphase polymer composition (P) applied to this layer; the multiphase polymer composition (P) comprising: 1. Multilayer product comprisingat least one layer of an acrylate-based foam carrier (S); anda multiphase polymer composition (P) applied to this layer;the multiphase polymer composition (P) comprising:a comb copolymer (A) which is obtainable by polymerization of at least one (meth)acrylate monomer in the presence of at least one macromer selected from the group consisting of polymerizable ethylene-butylene, ethylene-propylene, ethylene-butylene-propylene and isobutylene macromers, and which forms a continuous acrylate phase and a discontinuous hydrocarbon phase Kw;and at least one hydrocarbon component (B) which is soluble in the hydrocarbon phase Kw of the comb copolymer (A) and comprises at least one plasticizer resin and at least one solid resin;the multiphase polymer composition (P) having a continuous acrylate phase with a static glass transition temperature Tg(Ac), measured by the DSC method, and a discontinuous hydrocarbon phase Kw1, comprising the hydrocarbon component (B) and having a static glass transition temperature Tg(Kw1), measured by the DSC method, where Tg(Kw1) is higher than Tg(Ac) by 35 to 60 kelvins.2. Multilayer product according to claim 1 , wherein the acrylate-based foam carrier (S) is a viscoelastic foam carrier.3. Multilayer product according to claim 1 , wherein claim 1 , the acrylate forming the layer of the foam carrier (S) is a polyacrylate obtained by free or controlled radical polymerization of one or more acrylates and alkyl acrylates.4. Multilayer product according to claim 1 , wherein claim 1 , the acrylate forming the layer of the foam carrier (S) is a crosslinked polyacrylate claim 1 , preferably a thermally crosslinked polyacrylate.6. Multilayer product according to claim 5 , wherein the monomers of group (a1) are selected from ...

MASTERBATCH AND APPLICATIONS THEREOF

A masterbatch containing an organic base component and heat-expandable microspheres including a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein. The organic base component has a melting point not higher than the expansion-initiation temperature of the heat-expandable microspheres and a melt flow rate (MFR, g/10 mm) higher than 50 and not higher than 2200. A ratio of the heat-expandable microspheres ranges from 30 to 80 wt % of the total weight of the heat-expandable microspheres and the organic base component. Also disclosed is a molding composition, a foamed molded article manufactured by molding the molding composition and a weathers tripping. 1. A masterbatch comprising:heat-expandable microspheres comprising a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein; andan organic base component;wherein the organic base component has a melting point not higher than the expansion-initiation temperature of the heat-expandable microspheres and a melt flow rate (MFR, g/10 min) higher than 50 and not higher than 2200, andthe ratio of the heat-expandable microspheres in the masterbatch ranges from 30 to 80 wt % of the total weight of the heat-expandable microspheres and the organic base component.2. The masterbatch as claimed in claim 1 , wherein the organic base component is an ethylenic polymer claim 1 , and a ratio of ethylene monomer to all monomers constituting the ethylenic polymer is at least 60 wt %.3. The masterbatch as claimed in claim 1 , wherein the organic base component has a melting point ranging from 45 to 180° C.4. The masterbatch as claimed in claim 1 , wherein the organic base component has a tensile fracture stress not higher than 30 MPa.5. The masterbatch as claimed in claim 1 , wherein the thermoplastic resin is produced by polymerizing a polymerizable component containing a nitrile monomer.6. The masterbatch as claimed in claim 5 , wherein the polymerizable component ...

Shape Memory Products and Method For Making Them

A method for producing a heat-shrinkable product is provided. First, a polymer composition containing a polymer, a crosslinking agent and a micro-encapsulated foaming agent uniformly dispensed therein is melt mixed. The foaming agent has a peak activation temperature which is higher than a temperature of the melt mixing. Next, the polymer composition is injection molded into a molded product. This carried out at the peak activation temperature to activate the foaming agent. Then, the molded product is crosslinked within the mold. 1. A method for producing a shape memory product comprising the steps of:(i) melt mixing a polymer composition containing a polymer, a crosslinking agent and a micro-encapsulated foaming agent uniformly dispensed therein, the micro-encapsulated foaming agent having a peak activation temperature which is higher than a temperature of the melt mixing,(ii) injection molding the polymer composition into a molded product, the injection molding carried out at the peak activation temperature to activate the micro-encapsulated foaming agent; and(iii) crosslinking the molded product within a mold.2. The method according to claim 1 , wherein the micro-encapsulated foaming agent is a blowing agent.3. The method according to claim 2 , wherein the polymer composition includes a polyolefin.4. The method according to claim 3 , wherein the polymer composition further includes polyethylene.5. The method according to claim 4 , wherein the polymer composition further includes ethylene-vinyl acetate copolymer (EVA).6. The method according to claim 1 , wherein the polymer composition includes 40 to 60% by weight of polyethylene and 10 to 20% by weight of EVA.7. The method according to claim 1 , wherein injection molding is carried out at a temperature in a range of 120 to 160° C.8. The method according to claim 7 , wherein the mold is heated to a temperature in a range of 170 to 210° C.9. The method according to claim 8 , wherein the injection molding is carried ...

CURABLE COMPOSITIONS, PROCESSES FOR USING SUCH COMPOSITIONS TO PREPARE COMPOSITES AND PROCESSES FOR PREPARING COMPOSITES HAVING SUPERIOR SURFACE FINISH AND HIGH FIBER CONSOLIDATION

Curable compositions, such as oxazine-based ones, are useful in applications within the aerospace industry, such as for example as a thermosetting resin composition for use as a matrix resin in processes, such as resin transfer molding, vacuum assisted transfer molding, resin film infusion, prepregging and towpregging, where the composites or laminates so prepared have superior surface finish and high fiber consolidation. 1. A resin transfer molding process , steps of which comprise:(a) providing a thermosetting resin composition into a closed mold containing a preform, optionally with an agent capable of expanding;(b) exposing the interior of the mold to a first elevated temperature and elevated pressure sufficient to wet the preform with the thermosetting resin composition; and(c) curing the thermosetting resin composition-impregnated preform within the mold at a second elevated temperature to form a resin transfer molded product, wherein the thermosetting resin composition comprises (i) a thermosetting resin comprising at least one of epoxy, episulfide, oxazine, oxazoline, cyanate ester, maleimide, nadimide, itaconimide, phenolic and thiophenolic, and wherein at least one of the thermosetting resin composition or the preform includes the agent capable of expanding.2. The resin transfer molding process of claim 1 , wherein the thermosetting resin composition further comprises (ii) a toughener component.3. (canceled)4. The resin transfer molding process of claim 1 , wherein the thermosetting resin composition has a viscosity in the range of 10 to 3000 centipoise at the resin injection temperature.5. The resin transfer molding process of claim 1 , wherein the time within which the viscosity of the thermosetting resin composition increases by 100% under the process conditions is in the range of 30 minutes to 10 hours at the injection temperature.6. The resin transfer molding process of wherein the plurality of fabric plies or unidirectional plies comprises fibers ...

PELLET BASED TOOLING AND PROCESS FOR BIODEGRADABLE COMPONENT

An example starch-based material for forming a biodegradable component includes a mixture of a starch and an expansion additive. The starch has an amylose content of less than about 70% by weight. The expansion additive enhances the expansion and physical properties of the starch. A method of preparing a starch-based material is also disclosed and an alternate starch-based material for forming a biodegradable component is also disclosed. 1. A starch-based material for forming a biodegradable component , comprising:a mixture of a starch having an amylose content of less than about 70% by weight and an expansion additive enhancing the physical and expansion properties of the starch.2. The starch-based material of claim 1 , wherein the expansion additive comprises between about 0.5% and 10% by weight of the mixture.3. The starch-based material of claim 1 , wherein the expansion additive includes polyvinyl butadiene.4. The starch-based material of claim 1 , wherein the expansion additive includes heat-expandable thermoplastic microspheres.5. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres comprise a high-elongation acrylic copolymer.6. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres are between about 45 and 120 microns in diameter in an unexpanded state.7. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres are unexpanded and comprise between about 1% and 5% by weight of the mixture.8. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres are at least partially or fully expanded and the expanded heat-expandable thermoplastic microspheres comprise between about 0.5% and 4% by weight of the starch-based material.9. The starch-based material of claim 1 , further comprising another claim 1 , second claim 1 , additive including at least one of an etherification additive claim 1 , latex claim 1 , peat ...

Perfected self-modelling padding, garment or support comprising said self-modelling padding, and manufacturing method thereof

A self-modelling padding for garments or supports which has an elastomeric matrix having a cross-linked, three-dimensional open cell structure, and a self-modelling paste embedded in the elastomeric matrix is provided. The elastomeric matrix is configured to have a shape memory. The self-modelling paste has a plastic behavior.

EXPANDABLE, SHELF STABLE POLYMER BEAD

The invention relates to an expandable bead comprising a) a polyolefin selected from polyethylene (PE), polypropylene (PP) and mixtures thereof and b) thermoplastic microspheres encapsulating a blowing agent. 1. An expandable bead comprisinga) a polyolefin selected from polyethylene (PE), polypropylene (PP) and mixtures thereof andb) thermoplastic microspheres encapsulating a blowing agent,wherein an aspect ratio, defined as quotient of a largest diameter D1 of the bead to a smallest diameter D2 of the bead, is in the range from ≥1.0 to ≤1.40, wherein the smallest diameter D2 of the bead is in the range from ≥0.5 to ≤2.5 mm.2. The expandable bead of wherein the expandable bead comprises the polyolefin in the range from ≥70% by weight to ≤98% by weight claim 1 ,wherein the total amount of the polyolefin and the thermoplastic microspheres is 100% by weight.3. The expandable bead of comprising a polypropylene having a melt flow index (MFI) of from ≥5 to ≤60 g/10 min claim 1 , as measured according to ISO 1133 at 230° C. and a load of 2.16 kg.4. The expandable bead of wherein the polypropylene is selected from homopolymer PP and random PP copolymer.5. The expandable bead of wherein the polyethylene is linear low density polyethylene (LLDPE) claim 1 , having a MFI in the range from ≥5 to ≤70 g/10 min as measured according to ISO 1133 at 190° C. and 2.16 kg and/orhaving a density in the range from ≥910 to ≤940 kg/m3 as measured according to ISO 1183;and/orhigh density polyethylene (HDPE), having a MFI in the range from ≥5 to ≤70 g/10 min as measured according to ISO 1133 at 190° C. and a load of 2.16 kg and/orhaving a density in the range from ≥940 to ≤970 kg/m3 as measured according to ISO 1183.6. The expandable bead of wherein the diameter D2 is in the range from ≥0.8 to ≤2.0 mm claim 1 ,and/orhaving a bulk density in the range from ≥430 to ≤600 kg/m3 and/orhaving a shelf-stability of at least 6 month.7. The expandable bead of havinga bulk density after its expansion in ...

POLYMER HOLLOW PARTICLE, A METHOD OF PREPARING THE SAME, AND COMPOSITE COMPRISING THE POLYMER HOLLOW PARTICLE

A method of preparing a polymer hollow particle, a low-specific gravity and monodispersed polymer hollow particle of various shapes prepared using the method, and a composite including the polymer hollow particle are provided. The method includes: a first step of providing, onto a substrate including a engraved pattern, at least one expandable particle comprising a foaming agent-containing expandable core and a thermoplastic polymer shell; a second step of removing an excess of the at least one expandable particle from a resulting product of the first step; a third step of expanding the at least one expandable particle in the engraved pattern of the substrate by thermally treating a resulting product of the second step; and a fourth step of separating, from the substrate, expanded hollow polymer particles which are a resulting product of the third step. 1. A method of preparing polymer hollow particles , the method comprising:a first step of providing, onto a substrate including a engraved pattern, at least one expandable particle comprising a foaming agent-containing expandable core and a thermoplastic polymer shell;a second step of removing an excess of the at least one expandable particle from a resulting product of the first step;a third step of expanding the at least one expandable particle in the engraved pattern of the substrate by thermally treating a resulting product of the second step; anda fourth step of separating, from the substrate, expanded hollow polymer particles which are a resulting product of the third step.2. The method of claim 1 , wherein the at least one expandable particle is provided as monodispersed or polydispersed particles into the engraved pattern of the substrate in the first step claim 1 , and the hollow polymer particles in the fourth step are monodispersed particles.3. The method of claim 1 , wherein claim 1 , in the first step claim 1 , the at least one expandable particle comprising the expandable core and the thermoplastic ...

Expandable Tacky Tape

In the manufacture of composite product, raw composite is layered on a shape or form and cured at a higher temperature. With some shapes, it is difficult or impossible to apply sufficient pressure to force and consolidate the composite material to adequately conform to the desired final shape during the curing process. The expandable tacky tape of this invention is comprised of a viscous medium incorporating thermally expandable material. Applied over the raw composite, the expandable tacky tape effectively forces the composite to conform to the desired shape during curing. 1. A viscous material containing a dispersion of thermally expandable material and applied to the outer surface of composite material overlaying a mandrel or form.2. The viscous material containing thermally expandable material of when the expandable material is microspheres from about 0.1 to about 60 percent by weight.3. The viscous material containing thermally expandable material of when the viscous material is selected from the group: butyl rubber claim 1 , latex claim 1 , urethane claim 1 , urea claim 1 , silicone claim 1 , neoprene.4. The viscous material containing thermally expandable material of when the viscosity allows the mixture to be poured claim 1 , sprayed claim 1 , or applied as caulking.5. The viscous material containing thermally expandable material of when the thermally expandable material is exfoliating graphite at a concentration of 0.1 percent to about 70 percent by weight.6. The method of manufacturing a composite product comprised of the following steps:a. Coating a mandrel or form with raw composite plastic,b. Applying a viscous material containing thermally expandable material on the surface side of the raw composite plastic,c. Placing the coated mandrel or form with applied viscous material containing thermally expandable material into a sealable bag, evacuating air from the bag and sealing the bag, andd. Heating the assembly and curing the composite material. This ...

Injection-molded foam of resin composition with satisfactory surface property and capable of weight reduction and rib design

A foam injection molded article includes a resin composition, wherein the resin composition includes: (A) a polycarbonate resin, (B) a thermoplastic polyester resin, (C) a polyester-polyether copolymer, and (D) a foaming agent. The article has an arithmetic average roughness (Ra) that is greater than 0.1 μm and less than 9 μm, a maximum height (Ry) that is greater than 1 μm and less than 90 μm; and a 10-point average roughness (Rz) that is greater than 1 μm and less than 70 μm.

Expanded Particle Molded Article

The present invention is concerned with an expanded beads molded article of expanded beads comprising a crosslinked multi-block copolymer containing a polyethylene block and an ethylene/α-olefin copolymer block, wherein a density is 40 to 150 g/L; a gel fraction by a hot xylene extraction method is 30 to 70% by weight; a tensile elongation is 120% or more; a bead weight of the expanded beads is 0.8 to 8 mg; and the number of expanded beads per unit area on a surface of the expanded beads molded article is 5 to 30 per cm, and is able to provide an expanded beads molded article which is light in weight and favorable in surface properties, fusion bondability, and durability. 1. An expanded beads molded article of expanded beads comprising a crosslinked multi-block copolymer containing a polyethylene block and an ethylene/α-olefin copolymer block , wherein a density of the expanded beads molded article is from 40 to 150 g/L; a gel fraction of the expanded beads molded article by a hot xylene extraction method is from 30 to 70% by weight; a tensile elongation of the expanded beads molded article is 120% or more; a bead weight of the expanded beads is from 0.8 to 8 mg; and the number of expanded beads per unit area on a surface of the expanded beads molded article is from 5 to 30 per cm.2. The expanded beads molded article according to claim 1 , wherein an average cell diameter of the expanded beads molded article is from 50 to 200 μm.3. The expanded beads molded article according to claim 1 , wherein the bead weight of the expanded beads is from 1 to 4 mg.4. The expanded beads molded article according to claim 1 , wherein a type C durometer hardness of a molded article surface of the expanded beads molded article is from 15 to 50.5. The expanded beads molded article according to claim 1 , wherein the expanded beads molded article has a thin-walled part having a minimum thickness of 5 mm or less.6. The expanded beads molded article according to claim 1 , wherein the multi ...

FOAMING PARTICLE MOLDED BODY

The present invention relates to an expanded beads molded article, which is obtained through in-mold molding of expanded thermoplastic elastomer beads, has voids, and has a density of 150 to 300 kg/mand a voidage of 10 to 70% by volume. 1. An expanded beads molded article , which is obtained through in-mold molding of expanded thermoplastic elastomer beads , comprises voids among expanded beads , and has a density of 150 to 300 kg/mand a voidage of 10 to 70% by volume.2. The expanded beads molded article according to claim 1 , wherein in the measurement of a compression set at 23° C. on a basis of JIS K6767:1999 claim 1 , the compression set of the expanded beads molded article 30 minutes after completion of compression is 7% or less.3. The expanded beads molded article according to claim 1 , wherein a tensile strength at break of the expanded beads molded article is 0.3 MPa or more.4. The expanded beads molded article according to claim 1 , wherein a modulus of repulsion elasticity of the expanded beads molded article is 50% or more.5. The expanded beads molded article according to claim 1 , wherein a modulus of repulsion elasticity of the thermoplastic elastomer constituting the expanded beads molded article is from 30 to 50%.6. The expanded beads molded article according to claim 1 , wherein the thermoplastic elastomer constituting the expanded beads molded article is a thermoplastic urethane elastomer having a type A durometer hardness of 95 or less. The present invention relates to an expanded thermoplastic elastomer beads molded article.The thermoplastic elastomer is hereinafter occasionally abbreviated as “TPE”. In addition, the expanded thermoplastic elastomer beads molded article is occasionally referred to simply as “expanded beads molded article”.A thermoplastic elastomer (TPE), such as a thermoplastic urethane elastomer (TPU), exhibits characteristics close to those of vulcanized rubbers, is excellent in flexibility and repulsion elasticity, and is used ...

FOAMABLE MASTERBATCH AND POLYOLEFIN RESIN COMPOSITION WITH EXCELLENT EXPANDABILITY AND DIRECT METALLIZING PROPERTY

The present disclosure provides a masterbatch prepared by melting and extruding a mixture including a polyolefin resin, wherein the mixture includes 10 to 89% by weight of a polyolefin resin, 5 to 30% by weight of a chemical blowing agent, 5 to 30% by weight of thermally expandable microcapsule, and 1 to 30% by weight of an inorganic filler. In addition, the present disclosure provides a polyolefin resin composition with excellent expandability and direct metallizing property, which includes the foamable masterbatch. A molded article obtained by foam injection molding of the polyolefin resin composition according to one form of the present disclosure can be useful in satisfying uniform distribution and mechanical properties of foamed cells so that the molded article can be widely applied to parts for automobile interior/exterior materials, and also improving fuel efficiency of automobiles by achieving lightweight parts. 1. A foamable masterbatch prepared by melting and extruding a mixture comprising a polyolefin resin ,wherein the mixture comprises:(A) 10 to 89% by weight of a polyolefin resin;(B) 5 to 30% by weight of a chemical blowing agent;(C) 5 to 30% by weight of thermally expandable microcapsule; and(D) 1 to 30% by weight of an inorganic filler.2. The foamable masterbatch of claim 1 , wherein the polyolefin resin (A) comprises at least one selected from the group consisting of a random copolymer formed by polymerization of a comonomer selected from the group consisting of homo-polypropylene (Homo-PP) claim 1 , propylene claim 1 , ethylene claim 1 , butylene claim 1 , and octene claim 1 , a block copolymer formed by blending an ethylene-propylene rubber with polypropylene claim 1 , and a copolymer of polyethylene claim 1 , ethylene vinyl acetate claim 1 , and α-olefin.3. The foamable masterbatch of claim 1 , wherein the chemical blowing agent (B) comprises at least one selected from the group consisting of azodicarbon amide claim 1 , p claim 1 ,p′-oxybis( ...

COMPOSITIONS AND METHODS OF MAKING THERMOSET FOAMS FOR SHOE SOLES

A footwear article is provided. The footwear article includes a shoe sole. The shoe sole includes a crosslinked foam polyolefin elastomer having a density less than 0.88 g/cm, the crosslinked foam polyolefin elastomer including: a silane-grafted polyolefin elastomer, a silane-grafted olefin block copolymer, a polyolefin elastomer (POE), an olefin block copolymer (OBC), or a combination thereof; an ethylene vinyl acetate (EVA) copolymer; a crosslinker; a condensation catalyst; and a foaming agent. The shoe sole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.). 1. A crosslinked foam polyolefin elastomer composition prepared by the process comprising:mixing or dry blending a silane-grafted polyolefin elastomer, a crosslinker, an ethylene vinyl acetate copolymer, and a blowing agent, to form a crosslinkable polyolefin blend, andmolding the crosslinkable polyolefin blend to form the crosslinked foam polyolefin elastomer composition.2. The crosslinked foam polyolefin elastomer composition of wherein the silane-grafted polyolefin elastomer was prepared using a silane crosslinker selected from vinyltrimethoxy silane (VTMO) claim 1 , vinyltriethoxy silane (VTEO) and a combination thereof.3. The crosslinked foam polyolefin elastomer composition of wherein the ethylene vinyl acetate copolymer also has silicone oil.4. The crosslinked foam polyolefin elastomer composition of wherein the molding is compression molding or injection molding.5. The crosslinked foam polyolefin elastomer composition of claim 1 , wherein the crosslinker comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides.6. The crosslinked foam polyolefin elastomer composition of claim 1 , wherein the expansion ratio of the composition is from about 136% to about 178% claim 1 , and wherein the specific gravity of the composition is from ...

Sponge Roller and Image-Forming Apparatus

The present invention provides a sponge roller comprising a shaft body and an elastic layer formed on an outer peripheral surface of the shaft body, wherein the elastic layer is formed of a millable silicone rubber, unexpanded microballoon cells and chemical blowing agent cells, and an image forming apparatus comprising the sponge roller. The sponge roller has high durability, excellent surface smoothness and small permanent compression set. 1. A sponge roller comprising a shaft body and an elastic layer formed on an outer peripheral surface of the shaft body ,wherein the elastic layer is formed of a millable silicone rubber, unexpanded microballoon cells and chemical blowing agent cells.2. The sponge roller according to claim 1 , comprising a shaft body and an elastic layer formed on an outer peripheral surface of the shaft body claim 1 ,wherein a cell area ratio of the unexpanded microballoon cells and the chemical blowing agent cells on a cross section of the elastic layer is 95:5 to 50:50.3. The sponge roller according to claim 1 , wherein a specific gravity of the elastic layer is 0.9 to 0.3.4. The sponge roller according to claim 1 , wherein the elastic layer has composite cells formed of the unexpanded microballoon cells having an average cell diameter of 150 μm or less and the chemical blowing agent cells having an average cell diameter of 300 μm or less.5. The sponge roller according to claim 1 , wherein 25% permanent compression set of the elastic layer is 15% or less claim 1 , and a hardness decrease in 25% compression durability test of the elastic layer is 15% or less.6. An image forming apparatus comprising the sponge roller according to . The present invention relates to a sponge roller and an image forming apparatus. More particularly, the present invention relates to a sponge roller having high durability, excellent surface smoothness and small permanent compression set, and an image forming apparatus comprising the sponge roller.A rubber sponge ...

MASTER BATCH, POLYCARBONATE RESIN COMPOSITION, INJECTION FOAM MOLDED BODY AND METHOD FOR PRODUCING SAME

A masterbatch (C) containing thermally expandable microcapsules (A) and a carrier resin composition (B) is provided. The carrier resin composition (B) contains a carrier resin (B1) and a plasticizer (B2), the carrier resin (B1) being an acrylic resin having a weight average molecular weight of 8,000 or more and 350,000 or less, and the plasticizer (B2) being an acrylic plasticizer having a weight average molecular weight of 1,000 or more and 20,000 or less. The carrier resin composition (B) is substantially compatible with a polycarbonate resin and has a shear viscosity of 1.0 Pa·s or more and 1.5×10Pa·s or less at 80° C. The occurrence of whitening is suppressed and a good appearance can be obtained in an injection molded foam made with the masterbatch. A polycarbonate resin composition, an injection molded foam, and a method for producing an injection molded foam are provided. 1. A masterbatch (C) comprising:thermally expandable microcapsules (A); anda carrier resin composition (B), wherein the carrier resin composition (B) contains a carrier resin (B1) and a plasticizer (B2), the carrier resin (B1) being an acrylic resin having a weight average molecular weight of 8,000 or more and 350,000 or less and being a solid at 20° C., andthe plasticizer (B2) being a liquid at 20° C. and having a weight average molecular weight of 1,000 or more and 20,000 or less, and{'sup': '6', 'wherein the carrier resin composition (B) is substantially compatible with a polycarbonate resin and has a shear viscosity of 1.0 Pas or more and 1.5×10Pa·s or less at 80° C.'}2. The masterbatch according to claim 1 , wherein the masterbatch (C) is used for the polycarbonate resin.3. The masterbatch according to claim 1 , wherein the polycarbonate resin further comprises at least one other thermoplastic resin selected from the group consisting of a polyester resin claim 1 , a polyester-polyether copolymer claim 1 , an acrylonitrile-butadiene-styrene copolymer claim 1 , an acrylonitrile-ethylene- ...

Silicone resin foam and sealing material

A silicone resin foamed body according to the present invention comprises: a silicone resin cured product (A); and a plurality of particles (B) dispersed in the silicone resin cured product (A) and each having a cavity portion (b1) therein, wherein the silicone resin foamed body has a cavity portion (C) surrounded with the silicone resin cured product (A) or with the silicone resin cured product (A) and the particles (B) in the silicone resin cured product (A).

HEAT-EXPANDABLE MICROSPHERES

Provided are heat-expandable microspheres in which the water content can be adjusted easily and quickly by efficiently dehydrating the water present in the heat-expandable microspheres. 1. Heat-expandable microspheres having a structure in which a foaming agent is encapsulated inside an outer shell formed from a polymer , an average value of the degrees of circularity , calculated based on a parameter indicating a particle diameter of each particle of the heat-expandable microspheres and a parameter indicating a circumference , being 0.985 or less;an average particle diameter of a particle of the heat-expandable microspheres being from 15 to 200 μm;the outer shell containing acrylonitrile; andthe acrylonitrile constituting the outer shell being contained in an amount of 70 mass % or greater per 100 mass % total of a nitrile compound.2. The heat-expandable microspheres according to claim 1 , wherein the average value of the degrees of circularity is 0.980 or less.3. The heat-expandable microspheres according to claim 1 , wherein the parameter indicating the particle diameter is a parameter calculated from a parameter indicating an area of the particle obtained based on a picture image obtained by taking an image of the particle by an imaging means.4. The heat-expandable microspheres according to claim 1 , wherein the parameter indicating the circumference is a parameter calculated from a parameter indicating the area of the particle obtained based on the picture image obtained by taking an image of the particle by the imaging means.5. (canceled)6. The heat-expandable microspheres according to claim 1 , wherein the average particle diameter of the particles of the heat-expandable microspheres is from 40 to 200 μm.7. (canceled) The present invention relates to heat-expandable microspheres and a wet cake containing the heat-expandable microspheres.A heat-expandable microsphere is obtained by microcapsulating a volatile foaming agent with a polymer and is also called a ...

POLISHING PAD AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE SAME

Provided is a polishing pad including a polishing layer, wherein the nuclear magnetic resonance (NMR) C spectrum of a processed composition prepared by adding 1 g of the polishing layer to a 0.3 M aqueous solution of potassium hydroxide (KOH) and allowing the mixture to react in a closed container at a temperature of 150° C. for 48 hours includes a first peak appearing at 15 ppm to 18 ppm, a second peak appearing at 9 ppm to 11 ppm, a third peak appearing at 138 ppm to 143 ppm, and a fourth peak appearing at 55 ppm to 65 ppm, and the softening control index calculated by Equation 1 is 0.10 to 0.45. The polishing pad includes the polishing layer having physical properties corresponding to the softening control index, and thus may exhibit a removal rate and defect prevention performance within desired ranges in polishing of a polishing target. 2. The polishing pad of claim 1 , whereina percentage of the area of the fourth peak relative to a total area of the first peak and the second peak is 30% to 75%, anda percentage of the total area of the first peak and the second peak relative to a total area of the first peak, the second peak and the third peak is 60% to 70%.3. The polishing pad of claim 1 , whereinan area ratio of the third peak to the second peak is 1:1 to 5:1.4. The polishing pad of claim 1 , whereinan area ratio of the first peak to the second peak is 10:1 to 10:5.6. The polishing pad of claim 4 , whereinthe weight-average molecular weight (Mw) is 2,600 to 4,000, andthe number-average molecular weight (Mn) is 2,500 to 3,000.7. The polishing pad of claim 1 , whereinthe polishing layer comprises a cured product of a preliminary composition containing a urethane-based prepolymer,{'sup': '13', '#text': 'a nuclear magnetic resonance (NMR) C spectrum of the preliminary composition shows a fifth peak and a sixth peak in descending order of peak position (ppm) at 16 ppm to 20 ppm, and'}an area ratio of the fifth peak to the sixth peak is 1:1 to 5:1.8. The polishing ...

DIELECTRIC HEATING OF FOAMABLE COMPOSITIONS

A method for dielectrically heating foamable composition to foam and set the composition is described. In particular, radio frequency (RF) heating is used to heat the foamable composition to provide insulation in the manufacture of an article. 1. A method for making an article comprising a substrate and a foamed composition comprising:(a) preparing a foamable composition comprising (i) a water-based polymer in water, (ii) a plurality of expandable microspheres having an initial expansion temperature range of from about 80° C. to about 110° C., and a maximum expansion temperature range of from about 90° C. to about 150° C., and (iii) optionally, an additive;(b) applying the foamable composition onto the substrate;(c) exposing the foamable composition to a dielectric heating for a time sufficient to induce expansion of the plurality of microspheres, thereby forming the foamed composition on the substrate,wherein the steps (b) and (c) are completed in less than one minute,wherein the foamed composition has a thickness of about 0.125-0.135 inches, and less than 10% of the substrate comprises wrinkles following formation of the foamed composition on the substrate.2. The method according to claim 1 , further comprising step (b2) claim 1 , which occurs after step (b) and prior to step (c) claim 1 , wherein step (b2) comprises applying a second substrate onto the foamable composition claim 1 , whereby the foamable composition is sandwich between the substrate and the second substrate.3. The method according to claim 1 , further comprising step (d) after step (c) claim 1 , wherein step (d) comprises exposing the article to direct heating.4. The method according to claim 1 , wherein the foamable composition has a water content greater than 20 wt % at step (b).5. The method according to claim 1 , wherein the substrate is selected from the group consisting of fibreboards claim 1 , chipboards claim 1 , corrugated boards claim 1 , corrugated mediums claim 1 , solid bleached ...

MODIFIED DIENE-CONTAINING (CO)POLYMER, METHOD FOR PREPARING THEREOF AND USE AS A FLAME RETARDANT

Disclosed herein are modified diene-containing (co)polymers, in particular, modified styrene-butadiene copolymer, which can be used as flame retardants for expandable polystyrene polymer compositions. In particular, disclosed is a modified diene-containing (co)polymer, a method for preparing it, and use as a flame retardant for expandable polystyrene. The modified diene-containing (co)polymer claimed in the invention is characterized by high thermostability, namely, a 5% weight loss temperature of at least 180° C., a molecular weight of at least 1500 g/mol and a halogen content of at least 35 wt. %; the content of tertiary and/or allyl halogenides is in the range from 0 to less than 1.5 wt. %, and also does not affect the polymerization process and the formation of polystyrene granules either, and allows to obtain polystyrene granules with a yellowness index of 2 to 6 units, comparable to the yellowness index of polystyrene granules containing HBCD (from 0 to 3 units). 1. A modified diene-containing (co)polymer , wherein a 5% weight loss temperature is at least 180° C. , having an average molecular weight of at least 1500 g/mol and a halogen content of at least 35 wt. % , characterized in that it comprises in its structure in addition to halogen atoms at least one epoxy group , at least one hydroxyl group , and from 0 to less than 1.5 wt. % of tertiary and/or allyl halogenides.2. The modified diene-containing (co)polymer according to claim 1 , characterized in that the indicated (co)polymer has a 5% weight loss temperature of at least 220° C.3. The modified diene-containing (co)polymer according to claim 1 , characterized in that the (co)polymer has a weight-average molecular weight from 2000 to 280000 g/mol.4. The modified diene-containing (co)polymer according to claim 1 , characterized in that the content of halogen atoms is at least 60 wt. %.5. The modified diene-containing (co)polymer according to claim 1 , characterized in that the content of epoxy groups is ...

Processes for preparing foam composites

Processes for preparing polystyrene-phenolic foam composites and precursor compositions are described. The processes yield composites having advantageous properties useful in insulation and fire resisting applications.

PARTICLE-BASED MULTI-NETWORK POLYMERS

Disclosed are polymerizable compositions, methods, and articles and coatings related to multi-polymer networks wherein at least one of the polymer networks is based on particles. In an embodiment, the polymerizable compositions comprise at least two parts: 1) a polymer forming part comprising one or more compounds comprising a polymerizable group, wherein a composition consisting of the polymer forming part, if 90% or more polymerized, has a Tg of less than 25° C. and a prescribed volume average cross-link density at 100° C.; and 2) swellable particles comprising cross-links and having a Tg of less than 25° C. and a prescribed cross-link density. The swellable particles swell to a prescribed swelling ratio by mass from their non-swollen state if the swellable particles are swollen to equilibrium in a mixture consisting of the polymer forming part and the swellable particles. 1. A polymerizable composition comprising: i. one or more compounds comprising a polymerizable group, and', 'ii. optionally, an initiator,, 'a. a polymer forming part comprising'}wherein a composition consisting of the polymer forming part, if 90% or more of the polymerizable groups in the polymer forming part are polymerized, has a Tg as determined by DMTA of less than 25° C. and a volume average cross-link density at 100° C. as determined by DMTA of 0.2 mol/l or less, i. a Tg of less than 25° C., as determined by DMTA by first drying the swellable particles in air until they form a film and then drying the film for 16 hours in a vacuum oven at 80° C.,', {'sub': 2', '2', '2, 'sup': 1', '−1, 'ii. a 1/Tof from 0.1 msto 10 ms, where Tis the time at which the signal amplitude has decayed to 1/e of its original value as determined by solid state NMR Trelaxometry at 110° C. using a HEPS, and'}], 'b. swellable particles in an amount of 5 to 35 wt %, based on the total amount of the swellable particles and the polymer forming part in the polymerizable composition, the swellable particles comprising ...

Foaming Resin Composition, Preparation Method Therefor, and Foam Using Same

A foaming resin composition of the present invention contains an aromatic vinyl-based resin and zinc oxide, wherein the size ratio (B/A), in which peak A is a 370 nm to 390 nm region and peak B is a 450 nm to 600 nm region, of zinc oxide is approximately 0.01 to approximately 1 when photoluminescence is measured, and the BET surface area thereof is approximately 1 m/g to approximately 10 m/g. 1. A expandable resin composition comprising:an aromatic vinyl resin; andzinc oxide,{'sup': 2', '2, 'wherein the zinc oxide has a peak intensity ratio (B/A) of about 0.01 to about 1, where A indicates a peak in the wavelength range of 370 nm to 390 nm and B indicates a peak in the wavelength range of 450 nm to 600 nm in photoluminescence measurement and a BET surface area of about 1 m/g to about 10 m/g, as measured using a BET analyzer.'}2. The expandable resin composition according to claim 1 , wherein the zinc oxide is present in an amount of about 1 part by weight to about 10 parts by weight relative to 100 parts by weight of the aromatic vinyl resin.3. The expandable resin composition according to claim 1 , wherein the aromatic vinyl resin is a polymer of a monomer mixture comprising styrene claim 1 , α-methylstyrene claim 1 , vinyltoluene claim 1 , and/or chlorostyrene.4. The expandable resin composition according to claim 1 , wherein the zinc oxide has an average particle size of about 0.5 μm to about 3 μm.6. The expandable resin composition according to claim 1 , wherein the zinc oxide has a peak intensity ratio (B/A) of about 0.05 to about 0.5 in photoluminescence measurement.7. The expandable resin composition according to claim 1 , further comprising:an expanding agent comprising a hydrocarbon compound and/or a fluorinated hydrocarbon.8. A method of preparing an expandable resin composition claim 1 , comprising:forming a mixed composition by mixing an aromatic vinyl resin and zinc oxide; andextruding the mixed composition while introducing an expanding agent into the ...

Thermally expandable preparations

The subject matter of the present application is a thermally expandable preparation that can be pumped at application temperatures below 70° C., containing (a) at least one first epoxy resin E1 that has an epoxy equivalent weight of at most 280 g/eq and a viscosity of at most 1250 Pa*s at 25° C., (b) at least one second epoxy resin E2 that has an epoxy equivalent weight of at least 300 g/eq and a viscosity of at most 250 Pa*s at 25° C., (c) at least one hardener that can be thermally activated, (d) at least one propellant that can be thermally activated, and (e) at least 1 wt. % of organic fibres having a fibre length of 0.2 mm to 10 mm.

MICROWAVE MOLDED ARTICLE AND METHOD THEREOF

The present invention disclosures microwave molded articles, including molded articles having portions with different hardness; molded articles having sharp flanges; molded articles having portions with different colors; molded articles with designed pattern; molded articles made of plastic particles with hollow tubes; molded articles made of plastic and rubber particles composition; molded articles made of plastic particles in combination of pre-molded rubber blocks; a molded article made of plastic particles in combination of textile; and a molded article made of non-spherical type plastic particles. The manufacturing methods for the above molded articles are also provided. 1. A microwave molded article , comprising a plurality of particles bonded by microwave irradiation , the plurality of particles being foamed thermoplastic polyurethane , the plurality of particles including a plurality of first foamed particles and a plurality of second foamed particles having a different hardness from that of the first foamed particles.2. The microwave molded article according to claim 1 , wherein the microwave molded article comprises a first section formed from the plurality of first foamed particles bonded by microwave irradiation and a second section formed from the plurality of second foamed particles bonded by microwave irradiation.3. The microwave molded article according to claim 1 , wherein the microwave molded article is formed from the plurality of first foamed particles and the plurality of second foamed particles that are randomly dispersed claim 1 , mixed claim 1 , and bonded by microwave irradiation.4. The microwave molded article according to claim 1 , wherein the microwave molded article further comprises an outline on an outer surface of the microwave molded article claim 1 , and the outline keeps a portion of the shape of the particles as shown before the microwave irradiation.5. The microwave molded article according to claim 1 , wherein the microwave ...

Foam Thermoplastic Vulcanizate Pellet Compositions, Methods, and Articles Related Thereto

Foam pellets comprising a thermoplastic vulcanizate (TPV) and thermo-expandable microspheres, the foam pellet having a specific gravity of 0.2 to 1.0 and the TPV being composed of an at least partially vulcanized rubber component and a thermoplastic component. The foam pellets may be subsequently processed to form various foam articles without the need to include a foaming agent during processing. 1. A foam pellet comprising a thermoplastic vulcanizate (TPV) and thermo-expandable microspheres , the foam pellet having a specific gravity of 0.1 to 1.0 and the TPV comprising an at least partially vulcanized rubber component and a thermoplastic component.2. The foam pellet according to claim 1 , wherein the pellet has a specific gravity of 0.5 to 0.95.3. (canceled)4. The foam pellet according to claim 1 , wherein greater than 50% of the thermo-expandable microspheres have an un-ruptured shell.5. The foam pellet according to claim 1 , wherein the thermo-expandable microspheres are present in an amount of 0.5% to 10% by weight of the TPV.68-. (canceled)9. The foam pellet according to claim 1 , wherein the foam pellet does not comprise a thermoplastic modifier.10. The foam pellet according to claim 1 , wherein at least a portion of the thermo-expandable microspheres are unexpanded.11. The foam pellet according to claim 1 , wherein the at least partially vulcanized rubber is selected from the group consisting of an ethylene-propylene rubber; an ethylene-alpha olefin copolymer rubber; an ethylene-propylene-diene rubber; a natural rubber; a butyl rubber; a halobutyl rubber; a halogenated rubber copolymer of p-alkystyrene and at least one isomonoolefin having 4 to 7 carbon atoms; a copolymer of isobutylene and divinyl-benzene; a rubber homopolymer of a conjugated diene having from 4 to 8 carbon atoms; a rubber copolymer having at least 50 weight percent repeat units from at least one conjugated diene having from 4 to 8 carbon atoms and a vinyl aromatic monomer having from 8 to ...

FOAMED THERMOPLASTIC POLYURETHANE AND MICROWAVE MOLDED ARTICLE THEREOF

A foamable composition for preparing foamed thermoplastic polyurethane, and microwave molded articles thereof are provided. The foamable composition comprises non-foamed thermoplastic polyurethane particles and a foaming agent, wherein the non-foamed thermoplastic polyurethane particles have a viscosity between 10,000 poise and 40,000 poise measured at 170° C. according to JISK 7311 test method. 1. A foamable composition for preparing foamed thermoplastic polyurethane , comprising non-foamed thermoplastic polyurethane particles and a foaming agent , wherein the non-foamed thermoplastic polyurethane particles have a viscosity between 10 ,000 poise and 40 ,000 poise measured at 170° C. according to JISK 7311 test method.2. The foamable composition of claim 1 , wherein the viscosity of the non-foamed thermoplastic polyurethane particles is between 15 claim 1 ,000 poise and 35 claim 1 ,000 poise.3. The foamable composition of claim 1 , wherein the non-foamed thermoplastic polyurethane particles have a particle size between 2.5 mm and 4.5 mm.4. The foamable composition of claim 1 , wherein the non-foamed thermoplastic polyurethane particles have a hardness of 40 Shore A scale to 64 Shore D scale.5. The foamable composition of claim 1 , wherein the non-foamed thermoplastic polyurethane particles have a density between 1.0 g/cmand 1.25 g/cm.6. The foamable composition of claim 1 , comprising 100 parts by weight of the non-foamed thermoplastic polyurethane particles and 5 to 25 parts by weight of the foaming agent.7. The foamable composition of claim 1 , comprising 100 parts by weight of the non-foamed thermoplastic polyurethane particles and 5 to 20 parts by weight of the foaming agent.8. The foamable composition of claim 1 , wherein the foaming agent is composed of expandable microspheres claim 1 , carbon dioxide (CO) or hydrocarbons having 4 to 10 carbon atoms.9. The foamable composition of claim 1 , further comprising 0.1 to 5 parts by weight of talc powder.10. The ...

Epoxy Core with Expandable Microspheres

A method of fabricating a formed structure with expandable polymeric shell microspheres. A first plurality of polymeric shell microspheres are heated from an unexpanded state to an expanded state to form a plurality of expanded microspheres. The plurality of expanded microspheres are mixed with an epoxy resin and a second plurality of unexpanded polymeric shell microspheres. The mixture is formed in a shape to create a preform. The preform is wrapped with fiber tape to create a wrapped preform. The wrapped preform is placed in a mold. The mold is heated and the second plurality of unexpanded microspheres expand from an unexpanded state to an expanded state. The mold is cooled and the formed structure is removed from the mold. 1. A method of fabricating a hockey stick blade comprising:forming a mixture of microspheres in a shape to create a preform for an internal core, wherein the mixture forms a viscous fluid material;wrapping the preform with a first fiber tape to create a wrapped preform smaller than the hockey stick blade being formed and approximating a final geometry of the hockey stick blade;placing the wrapped preform in a mold;heating the mold and expanding the microspheres such that the mixture compresses and consolidates the fiber tape and the mixture bonds to the fiber tape;cooling the mold; andremoving the formed structure from the mold.2. The method according to wherein the fiber tape is preimpregnated with resin.3. The method according to wherein the preform comprises a first face surface claim 1 , a second face surface claim 1 , a first edge surface and a second edge surface claim 1 , the tape extending continuously around the first face surface claim 1 , the first edge surface claim 1 , the second face surface and the second edge surface.4. The method according to wherein the microspheres are about 10-12 microns in diameter prior to heating claim 1 , and are expanded to a diameter of about 40-50 microns during heating.5. The method according to ...

Heat-expandable microspheres, process for producing the same and application thereof

Heat-expandable microspheres having an almost spherical shape and high expansion performance and exhibiting good workability when mixed with a resin, a process for producing the heat-expandable microspheres, and applications thereof. The heat-expandable microspheres include a thermoplastic resin shell and a blowing agent encapsulated therein and vaporizable by heating. The thermoplastic resin is produced by polymerizing a polymerizable component containing a methacrylate monomer and a carboxyl-containing monomer, and optionally containing a nitrile monomer in an amount ranging from 0 to 30 parts by weight to 100 parts by weight of the total amount of the methacrylate monomer and the carboxyl-containing monomer. The blowing agent contains a hydrocarbon having at least 8 carbon atoms per molecule.

POLYMER COMPOSITION, CROSSLINKED BODY, AND TIRE

A polymer composition includes a conjugated diene polymer (A) and a compound (B). The compound (B) is at least one compound selected from the group consisting of a polysiloxane compound and a fluorine-containing compound. The conjugated diene polymer (A) contains, when the composition ratios (molar ratios) in the polymer of the structural units represented by formulas (1) to (4) are p, q, r, and s, respectively, a polymer (A-1) satisfying formula (i). 2. The polymer composition according to claim 1 , wherein a proportion of the polymer (A-1) in the conjugated diene polymer (A) is 50% by mass or more.3. The polymer composition according to claim 1 , wherein the polymer (A-1) has a glass transition temperature of −40° C. or lower.4. The polymer composition according to claim 1 , wherein the polymer (A-1) has a weight average molecular weight (Mw) in terms of polystyrene measured by a gel permeation chromatograph of 1.0×10to 2.0×10.5. The polymer composition according to claim 1 , wherein a content of the compound (B) is 0.01 to 5% by mass relative to the total composition.6. The polymer composition according to claim 1 , further comprising at least one selected from the group consisting of a foaming agent claim 1 , heat-expandable microcapsules claim 1 , and heat-expandable graphite.7. The polymer composition according to claim 1 , further comprising a cross-linking agent.8. The polymer composition according to claim 1 , further comprising an inorganic filler different from heat-expandable graphite.9. A crosslinked body obtained by using the polymer composition according to .10. A tire in which one or both of a tread and a sidewall are formed using the polymer composition according to . The present application is based on Japanese Patent Application No. 2020-166483, filed Sep. 30, 2020, the contents of which are incorporated herein by reference in their entirety.The present disclosure relates to a polymer composition, a crosslinked body, and a tire.Conjugated diene ...

Extrudable Composition and Product Having Abrasive Surface

An extruded thermoplastic product having a surface abrasive to insects. The extruded product is formed from a dry powder composition being comprised of a thermoplastic polymer, a plurality of pelletized diatomaceous earth, and a plurality of expandable microballoons. The composition is mixed and heated in an extrusion machine before being forced into a die of selected profile. Cooling the material immediately after being removed from the die allows the diatomaceous earth to remain at the surface of the material. The material with the surface abrasive to insects is used is used as a component in a product, such as conventional weatherization products, for placement in a building opening that insects use as ingress to the building. Products contemplated for use with the extrusion include door sweeps, door and window seals, and thresholds.

ANTIOXIDANT-CONTAINING FOAMABLE RESIN PARTICLES, METHOD FOR PRODUCING SAME, FOAMABLE PARTICLES, AND FOAM-MOLDED ARTICLE

Antioxidant-containing expandable resin particles including composite resin particles containing 100 to 400 parts by mass of polystyrene-based resin relative to 100 parts by mass of polypropylene-based resin, and a blowing agent and an antioxidant contained in the composite resin particles, wherein the polypropylene-based resin is abundantly present on the surface of the composite resin particles and poorly present at the center of the particles, and the composite resin particles contain 150 to 1500 ppm of antioxidant. 1. Antioxidant-containing expandable resin particles comprising composite resin particles containing 100 to 400 parts by mass of polystyrene-based resin relative to 100 parts by mass of polypropylene-based resin , and a blowing agent and an antioxidant contained in the composite resin particles , wherein:the polypropylene-based resin is abundantly present on the surface of the composite resin particles and poorly present at the center of the particles; andthe composite resin particles contain 150 to 1500 ppm of antioxidant.2. The antioxidant-containing expandable resin particles according to claim 1 , wherein a content of the polystyrene-based resin relative to 100 parts by mass of the polypropylene-based resin is 150 to 300 parts by mass.3. The antioxidant-containing expandable resin particles according to claim 1 , wherein the polypropylene-based resin is present on the surface of the composite resin particles at 51 to 85% and the polystyrene-based resin is present on the surface of the composite resin particles at 15 to 49%.4. The antioxidant-containing expandable resin particles according to claim 1 , wherein the composite resin particles contain 200 to 1400 ppm of antioxidant.5. A method for producing the antioxidant-containing expandable resin particles according to claim 1 , comprisingthe step of impregnating the composite resin particles with an antioxidant together with a flame retardant or a blowing agent.6. The method for producing the ...

Composition comprising a light-weight filler

The present invention relates to compositions containing at least one reactive binder, at least one curing agent and/or accelerator, at least one thermally activatable blowing agent and at least one light-weight filler, wherein at least one expanded particle of at least one glass-rich volcanic rock with a closed outer shell is contained as a light-weight filler. The invention also relates to a method for stiffening and/or reinforcing components with thin-walled structures with a corresponding composition as well as to correspondingly produced components.

A METHOD FOR THE COMBINED PROCESSING OF AT LEAST TWO POLYMER MELTS

The invention relates to a method for the combined processing of at least two polymer melts selected from the group consisting of (M), (M) and (M), wherein (M) is a polymer melt comprising a terephthalate polyester (A), (M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one aliphatic, ω-dicarboxylic acid and at least one aliphatic 1,ω-diol, and (M) is a polymer melt 0 comprising a copolyester (A) on the basis of terephthalic acid, at least one polytetramethylene glycol and at least one aliphatic 1,ω-diol. The method comprises the alternating processing of the at least two polymer melts into at least one product selected from the group consisting of pellets (P), fibers (P), expanded particles (P), preforms (P) and articles (P). 1123. A method for a combined processing of at least two polymer melts selected from the group consisting of (M) , (M) , and (M) , wherein{'b': 1', '1, '(M) is a polymer melt comprising a terephthalate polyester (A),'}{'b': 2', '2, '(M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one aliphatic 1,ω-dicarboxylic acid, and at least one aliphatic 1,ω-diol, and'}{'b': 3', '3, '(M) is a polymer melt comprising a copolyester (A) on the basis of terephthalic acid, at least one polytetramethylene glycol and at least one aliphatic 1,ω-diol, wherein'}{'b': 1', '2', '3', '4', '5, 'comprising alternating processing of the at least two polymer melts into at least one product selected from the group consisting of pellets (P), fibres (P), expanded particles (P), preforms (P), and articles (P).'}212311. The method according to claim 1 , wherein at least one polymer melt of the at least two polymer melts selected from the group consisting of (M) claim 1 , (M) claim 1 , and (M) is processed into pellets (P) claim 1 , wherein the processing into pellets (P) comprises:{'b': 1', '1, 'a) supplying the at least one polymer melt to a device (D), wherein the device (D) comprises ...

EPOXY RESIN COMPOSITION AND CURED PRODUCT OF SAME

The present invention relates to an epoxy resin composition containing an alicyclic epoxy compound (A), a polymer polyol having two or more terminal hydroxyl groups (B), and a Lewis acid-amine complex (C). The present invention provides an epoxy resin composition which can be cured by heating at low temperatures, and suppresses heat generation associated with curing (heat generation by curing). It is preferable that the epoxy resin composition further contains an antioxidant. Furthermore, it is preferable that the antioxidant is a phosphite ester compound. 1. An epoxy resin composition comprising:an alicyclic epoxy compound (A);a polymer polyol having two or more terminal hydroxyl groups (B); anda Lewis acid-amine complex (C).2. The epoxy resin composition according to claim 1 ,further comprising an antioxidant.3. The epoxy resin composition according to claim 2 ,wherein the antioxidant is a phosphite ester compound.5. The epoxy resin composition according to claim 1 ,further comprising at least one selected from the group consisting of a silica filler and glass bubble.6. A cured product of the epoxy resin composition according to .7. The epoxy resin composition according to claim 1 , whereinthe epoxy resin composition is a resin composition for forming a syntactic foam.8. A syntactic foam comprising:{'claim-ref': {'@idref': 'CLM-00007', 'claim 7'}, 'a cured product of the epoxy resin composition according to ; and'}microballoons dispersed in the cured product.9. The epoxy resin composition according to claim 2 ,further comprising at least one selected from the group consisting of a silica filler and glass bubble.10. The epoxy resin composition according to claim 3 ,further comprising at least one selected from the group consisting of a silica filler and glass bubble.11. The epoxy resin composition according to claim 4 ,further comprising at least one selected from the group consisting of a silica filler and glass bubble.12. A cured product of the epoxy resin ...

COMPOSITION FOR LOW SPECIFIC GRAVITY MOLDED FOAM AND METHOD FOR PRODUCING MOLDED FOAM USING THE COMPOSITION

Provided is a composition for a low specific gravity molded foam. The composition includes at least one polymer component selected from the group consisting of a peroxide-crosslinkable thermoplastic resin, a peroxide-crosslinkable rubber and a peroxide-crosslinkable thermoplastic elastomer, thermally expandable microspheres, and an organic peroxide crosslinking agent. 1. A method for producing a low specific gravity molded foam , comprising: providing a foamable composition comprising a mixture of at least one polymer component selected from the group consisting of a peroxide-crosslinkable thermoplastic resin , a peroxide-crosslinkable rubber and a peroxide-crosslinkable thermoplastic elastomer , thermally expandable microspheres , and an organic peroxide crosslinking agent; introducing the foamable composition into a mold for producing a molded foam; raising the temperature of the foamable composition to at least the expansion start temperature (T) of the thermally expandable microspheres to expand the foamable composition in the mold; forming a molded foam in a state in which the foamable composition is expanded to fill the mold; and releasing the molded foam from the mold.2. The method according to claim 1 , wherein the foamable composition is prepared by extrusion of the mixture.3. The method according to claim 1 , wherein the foamable composition is in the form of pellets claim 1 , rods or sheets.4. The method according to claim 1 , wherein the foamable composition is introduced in an amount to fill 50% or less of the volume of the mold.5. The method according to claim 1 , wherein the foamable composition introduced into the mold remains unfoamed or is only slightly foamed and the specific gravity of the only slightly foamed foamable composition is 0.7 to 0.9.6. The method according to claim 1 , wherein the temperature of the foamable composition is raised by directly or indirectly heating the mold with a heat source.7. The method according to claim 6 , wherein ...

METHOD FOR PRODUCING FOAMED PARTICLE MOLDED ARTICLE PROVIDED WITH SKIN

A method for producing a foamed particle molded article provided with a skin, includes: forming a hollow molded article; filling a hollow part of the hollow molded article with polypropylene-based resin foamed particles; and heating and fusing the particles to each other. A melt elongation at 190° C. of the polypropylene-based resin forming the hollow molded article is 100 m/min or more. A half-crystallization time at 100° C. of the polypropylene-based resin is between 25 to 80 seconds. In heat flux differential scanning calorimetry, a melting peak temperature of the polypropylene-based resin is between 130 to 155° C., a partial heat of fusion at 140° C. or more of the polypropylene-based resin is between 20 to 50 J/g, and a ratio of the partial heat of fusion of the polypropylene-based resin to the total (partial heat of fusion/total heat of fusion) is between 0.2 to 0.8. 1. A method for producing a foamed particle molded article provided with a skin , comprising: forming a hollow molded article by blow molding a parison in a softened state being formed by extruding a polypropylene-based resin; filling a hollow part of the hollow molded article with polypropylene-based resin foamed particles; and supplying a heating medium into the hollow molded article to heat and fuse the polypropylene-based resin foamed particles to each other and further to heat and fuse the polypropylene-based resin foamed particles and the hollow molded article , whereina melt elongation at 190° C. of the polypropylene-based resin forming the hollow molded article is 100 m/min or more, a half-crystallization time at 100° C. of the polypropylene-based resin is 25 seconds or more and 80 seconds or less, and in heat flux differential scanning calorimetry, a melting peak temperature of the polypropylene-based resin is 130° C. or more and 155° C. or less, a partial heat of fusion at 140° C. or more of the polypropylene-based resin is 20 J/g or more and 50 J/g or less, and a ratio of the partial ...

Method and a Device for Preparation of Expanded Microspheres

The invention relates to a method and a device for the preparation of expanded thermoplastic microspheres from unexpanded thermally expandable thermoplastic microspheres comprising a thermoplastic polymer shell encapsulating a blowing agent. The method comprises: (a) feeding a slurry of such expandable thermoplastic microspheres in a liquid medium into a heating zone; (b) heating the slurry in the heating zone, without direct contact with any fluid heat transfer medium, so the expandable microspheres reach at least a temperature at which they would have started to expand at atmospheric pressure, and maintaining a pressure in the heating zone sufficiently high so the microspheres in the slurry do not-fully expand; and, (c) withdrawing the slurry of expandable microspheres from the heating zone into a zone with a pressure sufficiently low for the microspheres to expand. 1. A method for the preparation of expanded thermoplastic microspheres from unexpanded thermally expandable thermoplastic microspheres comprising a thermoplastic polymer shell encapsulating a blowing agent , said method comprising:(a) feeding a slurry of such expandable thermoplastic microspheres in a liquid medium into a heating zone;(b) heating the slurry in the heating zone, without direct contact with any fluid heat transfer medium, so the expandable microspheres reach at least a temperature at which they would have started to expand at atmospheric pressure, and maintaining a pressure in the heating zone sufficiently high so the microspheres in the slurry do not fully expand; and,(c) withdrawing the slurry of expandable microspheres from the heating zone into a zone with a pressure sufficiently low for the microspheres to expand.2. The method of claim 1 , wherein the pressure in the heating zone is maintained from 5 to 50 bars.3. The method of claim 1 , wherein the slurry of expandable microspheres is heated in the heating zone to a temperature from 60° C. to 160° C.4. The method of claim 1 , ...

Method for Coating a Substrate

A process for the coating a substrate with a microporous layer includes at least incorporation by mixing of at least one physical and/or chemical blowing agent into an elastomer mixture, shaping of the elastomer mixture including the physical and/or chemical blowing agent by means of a calender or of a roller-head system, and application of the calendered elastomer mixture including the physical and/or chemical blowing agent to a substrate to be coated. Further, heating and blowing of the coating including the physical and/or chemical blowing agent is then provided by means of at least one heat source. In some cases, the blowing agent is composed of microspheres, which in some embodiments, may be present in non-expanded form. In some aspects, the heating and blowing of the coating directly follows the application procedure. The heat source may be an infrared source, such as a ceramic source. 19-. (canceled)10. A process for coating of a substrate comprising a microporous layer , the process comprising:in a first step, incorporation by mixing of at least one physical blowing agent into an elastomer mixture;in at least one further step, shaping of the elastomer mixture comprising the physical blowing agent by means of a calender or of a roller-head system;in at least one further step, application of the calendered elastomer mixture comprising the physical blowing agent to a substrate to be coated; andin a further step, heating and blowing of the coating comprising the physical blowing agent by means of at least one heat source.11. The process as claimed in claim 10 , wherein the blowing agent is composed of microspheres.12. The process as claimed in claim 11 , wherein the microspheres are present in non-expanded form.13. The process as claimed in claim 10 , wherein the heating and blowing of the coating directly follows the application procedure.14. The process as claimed in claim 10 , wherein the heat source is an infrared source.15. The process as claimed in claim ...

CLASSIFYING AND PURIFYING APPARATUS OF SOLID BLOWING AGENTS AND METHODS OF CLASSIFYING AND PURIFYING SOLID BLOWING AGENTS

A classifying and purifying apparatus of a solid blowing agent includes a classifier which classifies a supplied solid blowing agent into first microspheres and second microspheres, a storage connected to the classifier, in which the classified first microspheres flow in to be stored and emitted, and a filter arranged on the moving route of the solid blowing agent or the first microspheres which separates metallic substance from the object of filtering comprising the solid blowing agent or the first microspheres. 1. A classifying and purifying apparatus of a solid blowing agent comprising:a classifier which classifies a supplied solid blowing agent into first microspheres and second microspheres;a storage connected to the classifier, in which the classified first microspheres flow in to be stored and emitted; anda filter arranged on the moving route of the solid blowing agent or the first microspheres, which separates metallic substance from the object of filtering comprising the solid blowing agent or the first microspheres.2. The apparatus of claim 1 , wherein the filter comprises:a filter housing comprising an inside filter space configured to pass the solid blowing agent or the first microspheres;a filter cover arranged on the filter housing to be detachable for opening and closing of the filter space; anda filter material arranged in the filter space and generating magnetic force, and wherein the metallic substance is attached to the filter material by the magnetic force.3. The apparatus of claim 2 , wherein the filter material comprises:a holder located in the filter space; anda magnet arranged on the holder, andwherein the metallic substance is attached to the holder to be eliminated from the object of filtering.4. The apparatus of claim 2 , wherein a filter inlet connected to the filter space is formed in the filter housing claim 2 , andthe filter inlet is connected to a direction tangent to a perimeter of the filter space in a lower portion of the filter ...

Rubber Composition for Tire Tread

Provided is a rubber composition for tire treads containing a diene rubber, from 1 to 20 parts by weight of a silica containing millable silicone rubber compound, and from 0.2 to 20 parts by weight of thermally expandable microcapsules, per 100 parts by weight of the diene rubber. A rubber hardness of the millable silicone rubber compound is from 10 to 50. 1. A rubber composition for a tire tread comprising: a diene rubber , from 1 to 20 parts by weight of a millable silicone rubber compound and from 0.2 to 20 parts by weight of a thermally expandable microcapsule , per 100 parts by weight of the diene rubber , the millable silicone rubber compound containing silica , and a rubber hardness of the millable silicone rubber compound being from 10 to 50.2. The rubber composition for a tire tread according to claim 1 , wherein a weight ratio (X/Y) of a compounded amount (X) of the millable silicone rubber compound to a compounded amount (Y) of the thermally expandable microcapsule is from 20/80 to 90/10.3. The rubber composition for a tire tread according to further comprising a peroxide-based cross-linking agent.4. (canceled)5. The rubber composition for a tire tread according to claim 1 , wherein a rubber hardness of the millable silicone rubber compound is lower by 5 to 40 than a rubber hardness of a base rubber excluding the millable silicone rubber compound and the thermally expandable microcapsule from the rubber composition.6. A method of producing the rubber composition for a tire tread described in claim 1 , the method comprising: preparing a master batch by mixing the millable silicone rubber compound and the thermally expandable microcapsule in advance claim 1 , and mixing the master batch and the diene rubber.7. The method of producing the rubber composition for a tire tread according to claim 6 , wherein the master batch contains a peroxide-based cross-linking agent.8. A studless tire comprising a tread portion formed from the rubber composition for a tire ...

FOAMING PARTICLE MANUFACTURING DEVICE USING POLYOLEFIN-BASED RESIN PARTICLE AND METHOD FOR MANUFACTURING SAID FOAMING PARTICLE

An expanded particle producing apparatus includes a vessel and a blade stirrer that is located inside the vessel. The blade stirrer comprises a stirrer base and an impeller blade that is attached to the stirrer base. A distance from the bottom of the vessel to the center of the stirrer base (L) and a depth of the vessel (L) have a ratio (L/L) of 0.01 to 0.2. L is measured in a depth direction parallel to L, and a central axis of the blade stirrer coincides with a central axis of the vessel. The apparatus is configured to produce expanded particles. 1. An expanded particle producing apparatus , comprising:a vessel; anda blade stirrer that is located inside the vessel,wherein the blade stirrer comprises a stirrer base and an impeller blade that is attached to the stirrer base,{'b': 1', '2', '1', '2, 'wherein a distance from the bottom of the vessel to the center of the stirrer base (L) and a depth of the vessel (L) have a ratio (L/L) of 0.01 to 0.2,'}{'b': 1', '2, 'wherein L is measured in a depth direction parallel to L,'}wherein a central axis of the blade stirrer coincides with a central axis of the vessel, andwherein the apparatus is configured to produce expanded particles by: dispersing polyolefin resin particles in the vessel with water and a dispersing agent; maintaining the vessel at a certain internal temperature and a certain internal pressure; and thereafter releasing the polyolefin resin particles to an atmosphere having a pressure lower than the internal pressure of the vessel.212. The apparatus according to claim 1 , wherein the ratio L/L is 0.01 to 0.1.31. The apparatus according to claim 1 , wherein the impeller blade is inclined relative to the depth direction claim 1 , and has an angle of inclination (θ) of 20° to 70°.4222. The apparatus according to claim 1 , wherein a length (d) of the impeller blade and an inner diameter (D) of the vessel have a ratio (d/D) of 0.255 to 0.375 claim 1 , wherein D is an inner diameter of the vessel at the position ...

BEAD FOAM, RESIN COMPOSITE PROVIDED WITH SAME, AND METHOD FOR PRODUCING BEAD FOAM

A bead expanded article has a plurality of expanded particles, in which the bead expanded article has a property that a value obtained by dividing a 10% compression stress (MPa) of the bead expanded article by a density (g/cm) is 9.0 (MPa·cm/g) or more. 1. A bead expanded article comprising a plurality of expanded particles , wherein said bead expanded article has a property that a value obtained by dividing a 10% compression stress (MPa) of said bead expanded article by a density (g/cm) is 9.0 (MPa·cm/g) or more.2. The bead expanded article according to claim 1 , wherein said bead expanded article has a property that an average air permeability resistance measured from a piece cut from said bead expanded article is 30 s or more.3. The bead expanded article according to claim 1 , wherein said bead expanded article is used in formation of a resin composite containing the bead expanded article as a core material and a fiber-reinforced resin layer covering said core material.4. The bead expanded article according to claim 1 , wherein said bead expanded article contains a thermoplastic resin composition containing a polycarbonate-based resin as a main component.5. The bead expanded article according to claim 1 , wherein said bead expanded article has a fusion rate of 50% or more and/or an open cell rate of 20% or less.6. A resin composite comprising a bead expanded article as a core material and a fiber-reinforced resin layer covering said core material claim 1 , wherein said core material is the bead expanded article according to .8. The method for producing a bead expanded article according to claim 7 , wherein said thermoplastic resin composition contains a polycarbonate-based resin as a main component. The present invention relates to a bead expanded article, a resin composite comprising the same, and a method for producing a bead expanded article. More particularly, the present invention relates to a bead expanded article that can provide a resin composite ...

LOW DENSITY FLUOROPOLYMER FOAM

The invention relates to low density fluoropolymer foam, and preferably polyvinylidene fluoride (PVDF) foam, such as that made with KYNAR PVDF resins, and articles made of the foam. The foam is produced by adding microspheres containing blowing agents to the polymer and processing it through an extruder. The microspheres consist of a hard shell containing a physical blowing agent. The shell softens at elevated temperatures and allows the expansion of the blowing agent, and microsphere to create larger voids within the polymer matrix. By proper control of the polymer composition, viscosity, processing temperature, blowing agent selection, loading ratio, and finishing conditions, useful articles such as foamed PVDF pipe, tube, profiles, film, wire jacketing and other articles can be produced. The microspheres may be added to the fluoropolymer matrix by several means, including as part of a masterbatch with a compatible polymer carrier. 1. A fluoropolymer foam structure comprising:60 to 99.9 weight percent fluoropolymer; and0.1 to 40 weight percent of residual expandable microspheres.2. The fluoropolymer foam structure of claim 1 , wherein said fluoropolymer comprises at least 51 weight percent of vinylidene fluoride monomer units.3. The fluoropolymer foam structure of claim 1 , wherein said microspheres have an acrylic shell that is compatible with said fluoropolymer.4. The fluoropolymer foam structure of claim 1 , wherein said microspheres have an average particle size of 10 to 140 micron.5. The fluoropolymer foam structure of claim 1 , wherein said foam comprises from 0.1 to 30 weight percent of said microspheres.6. (canceled)7. The fluoropolymer foam structure of claim 1 , further comprising one or more additives selected from the group consisting of impact modifiers claim 1 , UV stabilizers claim 1 , plasticizers claim 1 , fillers claim 1 , coloring agents claim 1 , pigments claim 1 , dyes claim 1 , antioxidants claim 1 , antistatic agents claim 1 , surfactants ...

METHOD AND APPARATUS FOR MODIFYING POLYMER COMPOSITIONS

A system for applying a melted polymer/hot melt adhesive includes structure for adding one or more components to the polymer/hot melt stream at selected locations of the stream depending on the desired final characteristics of the polymer/hot melt adhesive, the heat histories of the polymer/hot melt adhesive and the modifying component, and the physical or chemical characteristics of the modifying component. The modifying component can be supplied in a fluid carrier. 1. A method of modifying the characteristics of a polymer , comprising the steps of heating the polymer to a first temperature at which the physical state of the polymer is such that it can flow and then injecting a modifying component into said heated polymer.2. A method according to wherein said modifying component increases the volume of the polymer.3. A method according to wherein said modifying component is temperature activated.4. A method according to wherein said modifying component is activated at about said first temperature and the heat capacity of said polymer is adequate to heat said modifying component to about said first temperature.5. A method according to wherein said modifying component is activated at a second temperature above said first temperature and further comprising the step of directing a mixture of said polymer and said modifying component to a heat exchanger that increases the temperature of said mixture to at least said second temperature.6. A method according to wherein said modifying component comprises microspheres that expand to reduce the density of the polymer.7. A method according to wherein said modifying component comprises microspheres that expand to reduce the density of the polymer.8. A method according to wherein said modifying component comprises microspheres that expand to reduce the density of the polymer.9. A method according to wherein said modifying component alters a chemical or physical property of said polymer.10. A method according to wherein said ...

Pressure sensitive adhesive foam

The present disclosure relates to a pressure sensitive adhesive foam comprising a rubber-based elastomeric material and at least one hydrocarbon tackifier, wherein the hydrocarbon tackifier(s) have a Volatile Organic Compound (VOC) value of less than 1000 ppm and a Volatile Fogging Compound (FOG) value of less than 1500 ppm, when measured by thermogravimetric analysis according to the weight loss test methods described in the experimental section. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive foam and uses thereof.

RUBBER-BASED PRESSURE SENSITIVE ADHESIVE FOAM

The present disclosure relates to a pressure sensitive adhesive foam comprising a rubber-based elastomeric material, at least one hydrocarbon tackifier and a crosslinking additive selected from the group of multifunctional (meth)acrylate compounds. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive foam and uses thereof. 1. A pressure sensitive adhesive foam comprising a rubber-based elastomeric material , at least one hydrocarbon tackifier , a crosslinking additive selected from the group of multifunctional (meth)acrylate compounds , and a filler material selected from the group consisting of microspheres , expandable microspheres , gaseous cavities , glass beads , glass microspheres , glass bubbles and any combinations or mixtures thereof.2. (canceled)3. A pressure sensitive adhesive foam according to claim 1 , wherein the multifunctional (meth)acrylate compound comprises at least two (meth)acryloyl groups claim 1 , in particular three or four (meth)acryloyl groups claim 1 , more in particular three (meth)acryloyl groups.4. A pressure sensitive adhesive foam according to claim 1 , wherein the multifunctional (meth)acrylate compound has the following Formula:{'br': None, 'sub': 2', '2', 'n, 'sup': 1', '2', '1, 'HC═C(R)—(CO)—O—R—[O—(CO)—(R)C═CH]'}{'sup': 1', '2, 'wherein Ris hydrogen or methyl; n is 1, 2, 3 or 4; and Ris an alkylene, arylene, heteroalkylene, or any combinations thereof.'}5. A pressure sensitive adhesive foam according to claim 1 , wherein the multifunctional (meth)acrylate is selected from the group consisting of 1 claim 1 ,6-hexanediol di(meth)acrylate claim 1 , trimethylolpropane tri(meth)acrylate claim 1 , and any combinations or mixtures thereof.6. A pressure sensitive adhesive foam according to claim 1 , which is crosslinked.7. A pressure sensitive adhesive foam according to claim 1 , wherein the rubber-based elastomeric material is selected from the group consisting of halogenated butyl rubbers; ...

COMPOSITIONS REMOVABLE BY THERMAL ACTIVATION, USES AND ASSEMBLIES COMPRISING SUCH COMPOSITIONS

The invention concerns a removable composition formed by at least: 1. A removable composition consisting at least of:a polyamide soluble in alcohol or a mixture of polyamides soluble in alcohol, andan expansion agent, the maximum expansion temperature of which is higher than the melting point of the polyamide or of the mixture of polyamides.2. The composition according to claim 1 , characterized in that the alcohol is chosen from light aliphatic alcohols or benzyl alcohol.3. The composition according to claim 1 , characterized in that the polyamide soluble in alcohol is a copolyamide soluble in alcohol or that the mixture of polyamides soluble in alcohol comprises at least one copolyamide soluble in alcohol.4. The composition according to claim 3 , characterized in that the copolyamide(s) is (are) chosen from aromatic claim 3 , aliphatic and alicyclic copolyamides.5. The composition according to claim 1 , characterized in that the expansion agent is chosen from thermally expandable microspheres claim 1 , azodicarbonamide claim 1 , expandable graphite claim 1 , polycarboxylic acids claim 1 , sulfonylhydrazides.6. The composition according to claim 1 , characterized in that the polyamide(s)/expansion agent or mixture of polyamide(s)/expansion agent ratio is between 100 to 1 and 1 to 1.7. The composition according to claim 1 , characterized in that the polyamide(s)/expansion agent or mixture of polyamide(s)/expansion agent ratio is between 10 to 1 and 10 to 4.8. The composition according to claim 1 , characterized in that it also comprises at least one other constituent chosen from pigments claim 1 , rheological agents claim 1 , deaerating agents claim 1 , fillers allowing heating by heat and electrical and/or thermal conductive fillers.9. The composition according to claim 1 , characterized in that it is in liquid form.10. The composition according to claim 1 , characterized in that it also comprises water.11. The composition according to claim 10 , characterized in ...

Thermally expandable sheet production method and shaped object production method

A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material, wherein the second thermally expandable material further contains white pigment.

SILICONE FOAM COMPOSITIONS RAPIDLY CROSS-LINKABLE AT AMBIENT TEMPERATURES AND METHODS OF MAKING AND USING SAME

Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ≤150 cPs for ≥1 min. post-preparation and ≤300 cPs≤5 min. post-preparation, at ambient temperature. 1. A two-part , rapidly cross-linkable silicone foam composition , comprising: a first low viscosity vinyl terminated polydimethylsiloxane present in an amount of from about 97 wt % to about 99.5 wt % based on the weight of the catalyst fluid and having a viscosity of from about 1 to about 150 cPs, and', {'sub': 2', '3', '2', '3', '2', '2', '3, 'a platinum divinyl disiloxane complex comprising Pt[(CH═CH)(CH)SiOSi(CH)(CH═CH)]having a platinum content of from about 2 ppm to about 32 ppm based on the catalyst fluid,'}, 'wherein the catalyst fluid has a viscosity of from about 1 to about 150; and, 'a catalyst fluid comprising'} a second low viscosity vinyl terminated polydimethylsiloxane present in an amount of from about 1 wt % to about 40 wt % based on the weight of the cross-linker suspension and having a viscosity of from about 1 to about 150 cPs,', 'a low viscosity hydride terminated polydimethylsiloxane present in an amount of from about 60 wt % to about 90 wt % based on the weight of the cross-linker suspension and having a viscosity of from about 1 to about 150 cPs,', 'a silicone cross-linker comprising polymethylhydrosiloxane polydimethylsiloxane copolymer present in an amount of from about 0.32 wt % to about 5.0 wt % based on the weight of the cross-linker suspension, and having a viscosity of from about 1 to about 150 ...

Elastomer Composition for an Insert for Supporting a Wheel Tyre, Insert Comprising the Composition and Mounted Assembly Incorporating the Insert

The invention concerns an elastomer composition for a self-supporting insert () intended to support a tyre of a wheel of a vehicle, an insert of which at least one layer () comprises said composition and a mounted assembly incorporating said insert. The invention applies to a non-pneumatic mounted assembly, in particular for a vehicle with two wheels, in which each of the tyres is permanently supported by said insert, The elastomer composition comprises, principally by mass, a mixture of at least one first thermoplastic elastomer and at least one second thermoplastic elastomer, and said composition is such that said at least one first thermoplastic elastomer is a copolyamide (COPA) and said at least one second thermoplastic elastomer is a thermoplastic styrene (TPS) elastomer. 1. An elastomeric composition for a self-supporting support insert for a non-pneumatic tire of a vehicle wheel , the composition comprising predominantly by weight a blend of at least one first thermoplastic elastomer and of at least one second thermoplastic elastomer , wherein said at least one first thermoplastic elastomer is a copolyamide (COPA) and said at least one second thermoplastic elastomer is a styrenic thermoplastic elastomer (TPS).2. The elastomer composition as claimed in claim 1 , wherein said blend comprises said at least one first thermoplastic elastomer in a weight fraction of less than or equal to that of said at least one second thermoplastic elastomer in said blend.3. The elastomer composition as claimed in claim 2 , wherein the composition is free of thermoplastic polyurethane (TPU) claim 2 , the weight fractions in said blend of said at least one first thermoplastic elastomer and of said at least one second thermoplastic elastomer being respectively between 5% and 49% and between 95% and 51%.4. The elastomer composition as claimed in claim 1 , wherein said at least one second thermoplastic elastomer comprises one said TPS of linear block type and one said TPS of block ...

Thermoplastic Polyurethane Foam Particle Molded Article And Method For Producing Same, And Thermoplastic Polyurethane Foam Particles

An in-mold molded article of expanded thermoplastic polyurethane beads containing a colorant, wherein when an average surface cell wall thickness of the in-mold molded article is 20 μm or more, the expanded TPU beads molded article is high in uniformity of color and good in color developing properties. Expanded thermoplastic polyurethane beads containing a colorant, wherein when an apparent density of the expanded beads is 80 to 300 kg/m, an average cell diameter of the expanded beads is 100 to 400 μm, and an average surface cell wall thickness of the expanded beads is 15 μm or more, a molded article resulting from in-mold molding of the expanded beads is suppressed in color unevenness and has high uniformity of color. 1. An expanded thermoplastic polyurethane beads molded article that is an in -mold molded article of expanded thermoplastic polyurethane beads containing a colorant , wherein an average surface cell wall thickness of the molded article is 20 μm or more.2. The expanded thermoplastic polyurethane beads molded article according to claim 1 , wherein a variation coefficient of surface cell wall thickness of the molded article is 0.8 or less.3. A method for producing an expanded thermoplastic polyurethane beads molded article claim 1 , comprising subjecting expanded thermoplastic polyurethane beads containing a colorant to in-mold molding to produce an expanded beads molded article claim 1 , wherein an average surface cell wall thickness of the expanded beads is less than 15 μm claim 1 , and at the time of in-mold molding claim 1 , and the expanded beads are heated with steam having a temperature of higher than ((melting temperature Tm)—25)° C. and not higher than the (melting temperature Tm)° C. of thermoplastic polyurethane constituting the expanded beads claim 1 , thereby regulating an average surface cell wall thickness of the expanded beads molded article to 20 μm or more.4. The method for producing an expanded thermoplastic polyurethane beads molded ...

ABRASIVE MATERIAL AND METHOD FOR MANUFACTURING SAME

An abrasive material containing a cured product of a thermosetting resin powder, comprising: a porous body having a plurality of bubbles derived from heat-expandable microspheres; and abrasive grains dispersed in the porous body. 1. An abrasive material containing a cured product of a thermosetting resin powder , comprising:a porous body having a plurality of bubbles derived from heat-expandable microspheres; and abrasive grains dispersed in the porous body.2. The abrasive material according to claim 1 , further comprising a cured foam of mixed powder containing the thermosetting resin powder claim 1 , the heat-expandable microspheres claim 1 , and the abrasive grains.3. The abrasive material according to claim 1 , wherein the heat-expandable microspheres are expandable at a temperature at or below a curing temperature of the thermosetting resin powder.4. The abrasive material according to claim 1 , wherein the thermosetting resin powder contains an epoxy resin.5. The abrasive material according to claim 1 , wherein an average particle diameter of the thermosetting resin powder is 5 to 300 μm.6. The abrasive material according to claim 1 , wherein the abrasive grains contain a first abrasive grain claim 1 , and a second abrasive grain having smaller granularity than the first abrasive grain.7. A method for manufacturing the abrasive material according to claim 1 , the method comprising:a step for filling a mold with a mixed powder containing a thermosetting resin powder, heat-expandable microspheres, and abrasive grains; anda heating step for heating the mold filled with the mixed powder to melt and cure the thermosetting resin powder.8. The method according to claim 7 , wherein the heat-expandable microspheres are expandable at a temperature at or below the heating temperature in the heating step. The present invention relates to an abrasive material and a method for manufacturing the material thereof.Conventionally, abrasive materials formed into disk shapes, ...

FOAMED INSULATION COATING ON PIPES AND METHODS THEREFOR

A method of providing a foamed insulation coating on at least a portion of a pipe, including extruding a melt stream over the pipe portion. The melt stream includes a matrix polymer and expandable fillers in an unexpanded state, the melt stream being maintained at a sufficiently high temperature to maintain the matrix polymer in extrudable form and at a sufficiently high pressure to maintain the expandable fillers in the unexpanded state. Once extruded, the expandable fillers are permitted to expand into an expanded state at a lower pressure. 1. An insulated pipe section comprising:a pipe section;a foamed insulation coating at least a portion of the pipe section; andthe foamed insulation coating having been formed by extruding a melt stream comprising expandable fillers in an unexpanded state over at least the portion of the pipe section and permitting the expandable fillers in the extruded melt stream to expand into an expanded state after extruding.2. The insulated pipe section of wherein the melt stream includes a matrix polymer selected from the group consisting of polyimides claim 1 , acrylonitrile-butadiene-styrene resins claim 1 , acetals claim 1 , chlorinated polyethers claim 1 , fluorocarbons claim 1 , polyamides (i.e. claim 1 , nylons) claim 1 , polycarbonates claim 1 , polyolefins (e.g. claim 1 , polyethylenes claim 1 , polypropylenes claim 1 , chlorinated or fluorinated polyolefins claim 1 , and copolymers thereof) claim 1 , polystyrenes and vinyls (e.g. claim 1 , polyvinyl chloride) claim 1 , thermoplastic polyurethanes and polyureas claim 1 , among others claim 1 , and mixtures thereof.3. The insulated pipe section of wherein the expandable fillers comprise expandable thermoplastic microspheres.4. The insulated pipe section of wherein the expandable thermoplastic microspheres are comprised of a thermoplastic material selected from the group consisting of: nitrile claim 3 , acrylic or halogenated resins and their co-polymers (e.g. claim 3 , poly ...

SHOCK-ABSORBING SHEET

A shock-absorbing sheet comprises a foamed resin layer having a thickness of 200 μm or less, a void ratio (P) of a plane directional cross section at a thickness of 0.1 T, a void ratio (P) of a plane directional cross section at a thickness of 0.5 T, and a void ratio (P) of a plane directional cross section at a thickness of 0.9 T from one surface of the foamed resin layer each ranging from 10 to 70 area %; and the standard deviation (Pσ) for an average void ratio found from the void ratio (P), the void ratio (P) and the void ratio (P) ranging from 1.0 to 20. 1. A shock-absorbing sheet comprising a foamed resin layer having a thickness (T) of 200 μm or less ,{'sub': 0.1', '0.5', '0.9, 'a void ratio (P) of a plane directional cross section at a thickness of 0.1 T, a void ratio (P) of a plane directional cross section at a thickness of 0.5 T, and a void ratio (P) of a plane directional cross section at a thickness of 0.9 T from one surface of the foamed resin layer each ranging from 10 to 70 area %, and'}{'sub': 0.1', '0.5', '0.9, 'a standard deviation (Pσ) for an average void ratio found from the void ratio (P), the void ratio (P) and the void ratio (P) ranging from 1.0 to 20.'}2. The shock-absorbing sheet according to claim 1 , wherein the foamed resin layer is a foamed acrylic resin layer made of an acrylic resin.3. The shock-absorbing sheet according to claim 2 , wherein the acrylic resin constituting the foamed acrylic resin layer has a glass transition temperature ranging from −25° C. to 15° C.4. The shock-absorbing sheet according to claim 1 , wherein a difference between a compressibility upon application of a load of 40 N and a compressibility upon application of a load of 10 N is 15% or more in a compression test for curved surface at 10° C.5. The shock-absorbing sheet according to claim 1 , wherein impact absorptivity at 23° C. is 35% or more.6. The shock-absorbing sheet according to claim 1 , wherein the sheet is used for electronic equipment.7. The shock- ...

HEAT-EXPANDABLE MICROSPHERES AND APPLICATIONS THEREOF

Heat-expandable microspheres having a thermoplastic resin shell and a thermally-vaporizable blowing agent encapsulated therein. The thermoplastic resin is a copolymer produced from a polymerizable component containing 15 to 90 wt % of acrylonitrile, 3 to 50 wt % of an acrylate ester monomer (A) represented by formula (1) shown below, and 3 to 70 wt % of a methacrylate ester monomer (B) represented by formula (2) shown below. The weight ratio of the acrylate ester monomer (A) represented by formula (1) to the methacrylate ester monomer (B) represented by formula (2) in the polymerizable component (A:B) ranges from 10:90 to 90:10: 2. The heat-expandable microspheres as claimed in claim 1 , wherein the total amount of acrylonitrile claim 1 , the acrylate ester monomer (A) represented by formula (1) and the methacrylate ester monomer (B) represented by formula (2) in the polymerizable component ranges from 70 to 100 wt %.3. The heat-expandable microspheres as claimed in claim 1 , wherein the acrylate ester monomer (A) represented by formula (1) is at least one monomer selected from the group consisting of n-propyl acrylate claim 1 , isopropyl acrylate claim 1 , n-butyl acrylate claim 1 , isobutyl acrylate claim 1 , t-butyl acrylate claim 1 , n-pentyl acrylate and n-hexyl acrylate.4. The heat-expandable microspheres as claimed in claim 1 , wherein the methacrylate ester monomer (B) represented by the formula (2) is methyl methacrylate.5. The heat-expandable microspheres as claimed in claim 1 , wherein an amount of methacrylonitrile in the polymerizable component ranges from 0 to less than 5 wt %.6. The heat-expandable microspheres as claimed in claim 1 , wherein an amount of vinylidene chloride in the polymerizable component ranges from 0 to less than 10 wt %.7. Hollow particles manufactured by expanding the heat-expandable microspheres as claimed in .8. A composition containing a base component and the heat-expandable microspheres as claimed in .9. A formed product ...

Acoustic filler including acoustically active beads and expandable filler

Aspects are disclosed of a filler for occupying a volume. The filler includes an expandable filler positioned in the volume so that it occupies a percentage of the volume. The expandable filler can permanently expand from a first dimension to a second dimension upon the application of an expansion trigger. The filler also includes an acoustic filler made up of a plurality of acoustically active beads positioned with the expandable filler in the volume so that the acoustic filler can adsorb gas flowing into the volume. Other embodiments are disclosed and claimed.

HIGH-STABILITY POLYURETHANE POLISHING PAD

The invention provides a polishing pad suitable for planarizing at least one of semiconductor, optical and magnetic substrates. The polishing pad is a cast polyurethane polymeric matrix formed from an isocyanate-terminated molecule and a curative agent. The cast polyurethane polymeric matrix contains 4.2 to 7.5 weight percent fluid-filled microspheres in the isocyanate-terminated molecule. The fluid-filled-microspheres is polymeric and has an average diameter of 10 to 80 μm and the polishing pad having a conditioner sensitivity (CS) of 0 to 2.6. 2. The polishing pad of wherein the curative contains 4 claim 1 ,4′-methylene-bis(2-chloroaniline) (MbOCA).3. The polishing pad of the curative contains a blend of 4 claim 1 ,4′-methylene-bis(2-chloroaniline) (MbOCA) and a multifunctional polyol.4. The polishing pad of wherein the polishing pad has a density of 0.5 to 0.75 g/cm.5. The polishing pad of wherein the fluid-filled-microspheres have an average diameter of 20 to 60 μm.7. The polishing pad of wherein the curative contains 4 claim 6 ,4′-methylene-bis(2-chloroaniline) (MbOCA).8. The polishing pad of the curative contains a blend of 4 claim 6 ,4′-methylene-bis(2-chloroaniline) (MbOCA) and a multifunctional polyol.9. The polishing pad of wherein the polishing pad has a density of 0.5 to 0.75 g/cm.10. The polishing pad of wherein the fluid-filled-microspheres have an average diameter of 20 to 60 μm. This specification relates to polishing pads useful for polishing and planarizing substrates and particularly to planarizing polishing pads having consistent dielectric removal rates.Polyurethane polishing pads are the primary pad-type for a variety of demanding precision polishing applications. These polyurethane polishing pads are effective for polishing silicon wafers, patterned wafers, flat panel displays and magnetic storage disks. In particular, polyurethane polishing pads provide the mechanical integrity and chemical resistance for most polishing operations used to ...

USE OF HOLLOW POLYMERIC MICROSPHERES IN COMPOSITE MATERIALS REQUIRING FLAME RESISTANCE

Disclosed is method of preparing microspheres wherein the microspheres do not increase the self-extinguishing time of a composition they are added to by more than 5% and their presence does not increase a viscosity of the composition by more than 65%. The microspheres are coated with a very high level of from 80 to 90% by weight of a flame retardant, preferably aluminum trihydroxide. Unexpectedly, the presence of the flame retardant on the microspheres at this high level reduces the need to add additional flame retardant to a composition along with the microspheres. Also unexpectedly, the location of the flame retardant on the microspheres completely prevents the normally expected increase in viscosity of the composition based on the level of the flame retardant added. The microspheres find use in many compositions requiring flame resistance including weld through sealants and adhesives. 1. A composition comprising:a base component;{'sup': '3', 'a plurality of hollow, expanded microspheres having a composite density of 0.1 g/cmor greater and comprising from 80 to 90% by weight of aluminum trihydroxide, wherein said microspheres are present in an amount of from 1 to 25% by weight based on the total weight of said composition and wherein the presence of said microspheres does not increase a self-extinguishing time of said base component by more than 5%.'}2. The composition as recited in claim 1 , wherein said base component comprises a weld through sealant.3. The composition as recited in claim 2 , wherein said weld through sealant has a self-extinguishing time of from 3 to 5 seconds.4. The composition as recited in claim 2 , wherein a viscosity of said composition is not increased by more than 65% by addition of said microspheres.5. The composition as recited in claim 1 , wherein said hollow claim 1 , expanded microspheres have a composite density of 0.12 g/cmor greater.6. The composition as recited in claim 1 , wherein said hollow claim 1 , expanded microspheres ...

Method for producing low specific gravity molded foam using propylene-based polymer

Provided is a method for producing a low specific gravity molded foam using a propylene-based polymer. The method includes: providing a foamable composition including a mixture of a propylene-based polymer and thermally expandable microspheres; introducing the foamable composition into a mold for producing a molded foam; raising the temperature of the foamable composition to at least the expansion start temperature (Tstart) of the thermally expandable microspheres to expand the foamable composition in the mold; forming a molded foam in a state in which the foamable composition is expanded to fill the mold; and releasing the molded foam from the mold.

FOAMED THERMOPLASTIC POLYURETHANE AND MICROWAVE MOLDED BODY THEREOF

The present invention relates to a foamable composition used to prepare foamed thermoplastic polyurethane and a microwave molded body thereof. The foamable composition includes unfoamed thermoplastic polyurethane particles, a thickener or a bridging agent, and a foaming agent, wherein the unfoamed thermoplastic polyurethane particles have a viscosity of 1,000 poise to 9,000 poise measured at 170° C. according to JISK 7311 test method. 1. A microwave molded body , wherein the microwave molded body is formed by subjecting foamed thermoplastic polyurethane to microwave , the foamed thermoplastic polyurethane is prepared through foaming and pelletizing of a foamable composition in a screw pelletizer , and the foamable composition comprises: 100 parts by weight of unfoamed thermoplastic polyurethane particles , 5 to 25 parts by weight of a foaming agent , and 0.5 to 5 parts by weight of a thickener or a bridging agent , wherein the unfoamed thermoplastic polyurethane particles have a viscosity of 1 ,000 poise to 9 ,000 poise measured at 170° C. according to JISK 7311 test method.2. The microwave molded body of claim 1 , wherein a density of the microwave molded body is 0.15 g/cmto 0.6 g/cm.3. The microwave molded body of claim 1 , wherein a hardness of the microwave molded body is 40 Shore C scale to 80 Shore C scale.4. The microwave molded body of claim 1 , wherein the thickener is selected from an inorganic thickener claim 1 , a polyacrylic acid thickener claim 1 , or a cellulose thickener.5. The microwave molded body of claim 1 , wherein the bridging agent is selected from dicumyl peroxide (DCP) claim 1 , benzoyl peroxide claim 1 , di-tert-butyl peroxide claim 1 , or dicumyl hydrogen peroxide 2 claim 1 ,5-dimethyl-2 claim 1 ,5-di-tert-butylperoxy hexane.6. The microwave molded body of claim 4 , wherein the inorganic thickener is selected from bentonite or aluminum silicate claim 4 , the polyacrylic thickener is selected from a thickener formed from a carboxylic acid ...

Dielectric heating of foamable compositions

A method for dielectrically heating foamable composition to foam and set the composition is described. In particular, radio frequency (RF) heating is used to heat the foamable composition to provide insulation in the manufacture of an article.

SILICONE FOAM COMPOSITIONS RAPIDLY CROSS-LINKABLE AT AMBIENT TEMPERATURES AND METHODS OF MAKING AND USING SAME

Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ≤150 cPs for ≥1 min. post-preparation and ≤300 cPs≤5 min. post-preparation, at ambient temperature. 1. A two-part , rapidly cross-linkable silicone foam composition , comprising: a first low viscosity vinyl terminated polydimethylsiloxane present in an amount of from about 97 wt % to about 99.5 wt % based on the weight of the catalyst fluid and having a viscosity of from about 1 to about 150 cPs, and', {'sub': 2', '3', '2', '3', '2', '2', '3, 'a platinum divinyl disiloxane complex comprising Pt[(CH═CH)(CH)SiOSi(CH)(CH═CH)]having a platinum content of from about 2 ppm to about 32 ppm based on the catalyst fluid,'}, 'wherein the catalyst fluid has a viscosity of from about 1 to about 150; and, 'a catalyst fluid comprising'} a second low viscosity vinyl terminated polydimethylsiloxane present in an amount of from about 1 wt % to about 40 wt % based on the weight of the cross-linker fluid and having a viscosity of from about 1 to about 150 cPs,', 'a low viscosity hydride terminated polydimethylsiloxane present in an amount of from about 60 wt % to about 90 wt % based on the weight of the cross-linker fluid and having a viscosity of from about 1 to about 150 cPs,', 'a silicone cross-linker comprising polymethylhydrosiloxane polydimethylsiloxane copolymer present in an amount of from about 0.32 wt % to about 5.0 wt % based on the weight of the cross-linker fluid, and having a viscosity of from about 1 to about 150 cPs, and', 'a ...

Foaming Agent Masterbatches for Foaming Thermoplastic Vulcanizates

The present disclosure relates to thermoplastic vulcanizate (TPV) compositions and foaming agent masterbatches suitable for foaming, as well as foamed TPV compositions, methods of making the foregoing, and applications of various foamed TPV compositions. In particular, the present disclosure provides foaming agent masterbatches having unconventionally lower loading of foaming agent in carrier polymer. The carrier polymer may advantageously comprise or be a plastomer and/or propylene-based elastomer that is also suitable for inclusion in the TPV composition, and foaming the TPV composition may include the use of relatively greater amounts of foaming agent masterbatch. The use of greater amounts of foaming agent masterbatch with lower loading may allow for superior distribution of the foaming agent in the TPV composition during foaming, leading to greater uniformity of extent of foaming (e.g., as may be shown through greater uniformity of specific gravity in the foamed TPV composition). 1. A method comprising: wherein the TPV composition comprises (i) an at least partially vulcanized rubber component dispersed in a thermoplastic component comprising a thermoplastic resin and, optionally, a first portion of a plastomer and/or a first portion of a propylene-based elastomer; (ii) oil; and (iii) optionally, one or more additives;', 'further wherein the foaming agent masterbatch comprises thermo-expandable microspheres in a carrier polymer comprising a second portion of the plastomer and/or a second portion of the propylene-based elastomer; and, '(a) combining 80 to 97 wt % of a thermoplastic vulcanizate (TPV) composition with 3 to 20 wt % of a foaming agent masterbatch;'} wherein the first portion of each of the plastomer and/or the propylene-based elastomer is within the range from 0 to 75 wt % of the total amount of the plastomer and/or propylene-based elastomer, respectively, in the foamed TPV composition; and', 'further wherein the second portion of each of the ...

System and Method for Flexible Sealant With Density Modifier

The disclosed latex system comprises a one-component, closed-cell, semi-foam, mastic sealant using gas-filled, flexible, organic microspheres to create a product that is elastic and compressible under pressure without protruding in an outward direction when compressed, thereby allowing the applied sealant to compress in an enclosed, maximum-filled channel unlike typical mastic sealants (while retaining the ability to rebound). This allows the sealant to function as a gasket, and, once fully cured, to have properties including vibration damping, insulating, and condensation resistance. The sealant can be formulated as an air barrier or a vapor barrier and at various degrees of moisture resistance. It may be applied by different packaging variations including aerosol can (bag in can or bag on valve), airless sprayer, cartridge tubes, foil tubes, squeeze tubes, and buckets to be applied using a brush, trowel, spatula, etc. The disclosed mastic sealant can also be formulated to be smoke-resistant and flame-resistant. 1. A sealant composition comprising:a. up to about 80 vol % of a polymeric dispersion;b. from about 20 vol % to about 65 vol % of a density modifier; andc. from about 0 vol % to about 10 vol % of one or more additives.2. The sealant composition of claim 1 , wherein the sealant composition is configured to be packaged in one or more of aerosol cans claim 1 , cartridge tubes claim 1 , foil tubes claim 1 , squeeze tubes claim 1 , buckets claim 1 , or combinations thereof.3. The sealant composition of claim 1 , wherein the density modifier includes microspheres comprising an outer shell encapsulating a gas.4. The sealant composition of claim 3 , wherein the outer shell is a thermoplastic polymer selected from the group consisting of acrylonitrile claim 3 , acrylonitrile copolymers with other acrylics claim 3 , methylmethacrylate claim 3 , vinylidene chloride claim 3 , and combinations thereof.5. The sealant composition of claim 3 , wherein the outer shell is ...

Foam Beads And Method Of Making The Same

The present disclosure relates to foam beads of an elastomeric composition comprising a propylene-based elastomer. The foam bead has a density of less than 0.5 g/cm. The foam beads can be made from pellets of elastomeric compositions by expanding with supercritical fluid blowing agent. The foamed bead has reduced lightness while maintaining elasticity. 1. A foam bead , comprising:a propylene-based elastomeric composition,{'sup': '3', 'the foam bead having a density of from about 0.01 to about 0.5 g/cm.'}2. The foam bead of having a density of from about 0.01 to about 0.30 g/cm.3. The foam bead of having a density of from about 0.03 to about 0.10 g/cm.4. The foam bead of claim 1 , wherein the foam bead has a diameter of from about 1 to about 20 mm.5. The foam bead of claim 1 , wherein the foam bead has diameter of from about 5 to about 15 mm.6. The foam bead of having an expansion ratio claim 1 , calculated by dividing the density of the propylene-based elastomeric composition by the density of the foam bead claim 1 , of at least about 3.7. The foam bead of claim 1 , wherein the propylene-based elastomeric composition has a density of greater than about 0.85 g/cm.8. The foam bead of claim 1 , wherein the propylene-based elastomeric composition comprises a propylene-based elastomer having at least about 75 wt. % units derived from propylene and less than about 25 wt. % of units derived from at least one of ethylene and/or C-Calpha-olefins claim 1 , based on the weight of the propylene-based elastomer claim 1 , and having a triad tacticity of three propylene units by C NMR of at least 75% claim 1 , and a heat of fusion of less than about 75 J/g.9. The foam bead of claim 8 , wherein the propylene-based elastomer comprises from about 83 wt. % to about 97 wt. % of propylene-derived units and from about 3 wt. % to about 17 wt. % of ethylene-derived units.10. The foam bead of claim 8 , wherein the propylene-based elastomer further comprising at least one of the following ...

Methods of manufacturing articles utilizing foam particles

Disclosed herein are cushioning elements comprising a first layer including a depression defined by a first surface, and a first component disposed within the depression of the first layer, the first component comprising a plurality of affixed foam particles. The cushioning element can optionally include a second surface opposing the first surface, defining an interior of a chamber that can be at least partially filled with a fluid. The first component can be thermally bonded or adhesively bonded to the first surface or the second surface. Methods for manufacturing the cushioning element, and articles including the cushioning element, including articles of footwear, apparel, and sporting equipment are also provided. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

METHODS OF MANUFACTURING ARTICLES UTILIZING FOAM PARTICLES

Methods for manufacturing articles, including articles of footwear, apparel, and sporting equipment are provided. The methods comprise decorating a plurality of foam particles. The decorating can comprise applying a coating on the foam particles, or embossing or debossing the foam particles, or both. The decorating can comprise applying a coating on the foam particles by printing, painting, dyeing, applying a film, or any combination thereof. The plurality of foam particles are affixed utilizing aspects of additive manufacturing methods. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. 1. A method of forming an article , the method comprising:decorating a portion of a plurality of foam particles, andarranging a plurality of foam particles, wherein the arranged plurality of foam particles comprises a first thermoplastic elastomeric material, and wherein the arranged plurality of foam particles has a number average particle size of about 0.04 millimeters to about 10 millimeters in a longest dimension; andaffixing together at least a portion of the plurality of foam particles, wherein the arranging and affixing are carried out for two or more iterations, forming a component.2. The method according to claim 1 , wherein the decorating comprises: applying a coating on the portion; or embossing or debossing the portion; or both.3. The method according to claim 2 , wherein the applying the coating on the portion of the plurality of foam particles comprises printing on the portion claim 2 , painting on the portion claim 2 , dyeing the portion claim 2 , applying a film on the portion claim 2 , or any combination thereof.4. The method according to claim 3 , wherein the portion of the plurality of foam particles have a first color claim 3 , and the coating has a second color which is different than the first color.5. The method according to claim 1 , wherein the arranging a ...

Foamed Thermoplastic Vulcanizate and Methods Related Thereto

Foamed thermoplastic vulcanizate compositions having minimal water absorption, and in particular having predominantly closed cell structure. The foam compositions exhibit desirable properties including, but not limited to, low density, tensile strength, ultimate elongation, and low modulus of elasticity. The foam may be used in one or more commercial products or articles, such as use in forming weather seals. 1. A foam comprising a thermoplastic vulcanizate including an at least partially vulcanized rubber component and a thermoplastic component having a density of about 0.4 grams per cubic centimeter (g/cm) to about 0.9 g/cmand a water absorption of less than about 5% at a pressure of 172 millibar (mbar) below atmosphere.2. The foam of claim 1 , wherein the water absorption is less than about 3.5% at a pressure of 172 millibar (mbar) below atmosphere.3. The foam of claim 1 , wherein the water absorption is less than about 0.7% at a pressure of 172 millibar (mbar) below atmosphere.4. The foam according of claim 1 , wherein the thermoplastic vulcanizate is foamed with a thermo-expandable microsphere foaming agent.5. The foam of claim 4 , wherein the thermo-expandable microsphere foaming agent is present in an amount of about 0.5% to about 5% by weight of the foam.6. The foam of claim 4 , wherein the thermo-expandable microsphere foaming agent has a maximum expansion temperature and the thermoplastic vulcanizate has a melt temperature claim 4 , both within a temperature range of ±40° C. of each other.7. The foam of claim 6 , wherein the temperature range is ±5° C.8. The foam of claim 6 , wherein the maximum expansion temperature and the melt temperature are about 160° C. to about 240° C.9. The foam of claim 6 , wherein the maximum expansion temperature and the melt temperature are about 170° C. to about 200° C.10. The foam of claim 1 , wherein the foam has a tensile strength at break of about 0.5 megapascal (MPa) to about 4 MPa.11. The foam of claim 1 , wherein the ...

METHOD OF MOLDING A VULCANIZED FOAM RUBBER SOLE FOR FOOTWEAR AND RELATED SOLE OF VULCANIZED FOAM RUBBER FOR FOOTWEAR

A method of molding a sole () in vulcanized foam rubber for footwear, includes preparing a rubber in the form of a strip, preformed and/or granules, mixing the rubber inside a loading and mixing chamber (), and preparing a mold () for the molding of a footwear sole (). The mold () defines a molding chamber () counter-shaped with respect to a footwear sole (). The mixed material is conveyed inside the molding chamber () and molding the footwear sole () inside the molding chamber () and the footwear sole () is removed from the mold (). The rubber includes a foaming agent able to generate an expansion of the material inside the molding chamber () during molding, so as to uniformly fill the molding chamber () with the foam rubber. The foam material is vulcanized inside the molding chamber (). 1. Method of molding a sole in vulcanized foam rubber for footwear comprising:preparing rubber formed as a strip, the rubber being preformed and/or granules,mixing said rubber inside a loading and mixing chamber,preparing a mold for molding a footwear sole, said mold defining a molding chamber counter-shaped with respect to the footwear sole,conveying material mixed inside said molding chamber, and molding the footwear sole inside the molding chamber,removing the footwear sole from said mold, the method beingthe rubber comprising a foaming agent generating an expansion of the material inside the molding chamber during molding, to uniformly fill said molding chamber with the foam rubber;vulcanizing the foam material inside the molding chamber.2. The method according to claim 1 , wherein the loading and mixing chamber is an injection chamber and wherein the rubber is loaded into the molding chamber by injection.3. The method according to claim 1 , wherein said foaming agent is added to the rubber as microspheres claim 1 , during the mixing and preparation of the rubber.4. The method according to claim 3 , wherein said microspheres have a diameter between 5 and 50 μm.5. The method ...

THERMALLY EXPANDABLE MICROCAPSULE AND FOAM-MOLDED ARTICLE

A thermally expandable microcapsule, which shows excellent heat resistance and a high expansion ratio and thereby can be suitably used for molding processes involving high shearing force, such as kneading molding, calender molding, extrusion molding, and injection molding. The thermally expandable microcapsule also provides a foamed product using the thermally expandable microcapsule. The thermally expandable microcapsule contains a shell made of a polymer; and a volatile expansion agent as a core agent encapsulated in the shell, the storage elastic modulus (E′) of the shell at a temperature of 200° C. and a frequency of 10 Hz being 1×10N/mor more, the storage elastic modulus (E′) of the shell at a temperature of 250° C. and a frequency of 10 Hz being 1×10N/mor more, and a maximum displacement amount measured by thermomechanical analysis being 300 μm or more. 1. A thermally expandable microcapsule , which comprises:a shell made of a polymer; anda volatile expansion agent as a core agent encapsulated in the shell,{'sup': 5', '2, 'a storage elastic modulus (E′) of the shell at a temperature of 200° C. and a frequency of 10 Hz being 1×10N/mor more,'}{'sup': 5', '2, 'the storage elastic modulus (E′) of the shell at a temperature of 250° C. and a frequency of 10 Hz being 1×10N/mor more, and'}a maximum displacement amount measured by thermomechanical analysis being 300 μm or more,wherein the shell comprises a polymer obtainable by polymerizing a monomer mixture that contains 95% by weight or more of (meth)acrylonitrile, the (meth)acrylonitrile containing 70% by weight or more of acrylonitrile, anda degree of crosslinkage is 60% by weight or more.2. A thermally expandable microcapsule , which comprisesa shell made of a polymer; anda volatile expansion agent as a core agent encapsulated in the shell,{'sup': 5', '2, 'a storage elastic modulus (E′) of the shell at a temperature of 200° C. and a frequency of 10 Hz being 1×10N/mor more,'}{'sup': 5', '2, 'the storage elastic ...

Method and A Device For Preparation of Expanded Thermoplastic Microspheres

The invention relates to a method of preparing expanded thermoplastic microspheres from thermally expandable thermoplastic microspheres comprising a polymer shell encapsulating a foaming agent, the method comprising heating the expandable microspheres within a flexible container () to effect expansion of said microspheres and withdrawing gas from said flexible container (). The invention further relates to an expansion device for preparing such expanded thermoplastic microspheres. 1. A method of preparing expanded thermoplastic microspheres from thermally expandable thermoplastic microspheres comprising a polymer shell encapsulating a foaming agent , the method comprising heating the expandable microspheres within a flexible container made of a material impermeable to gas to effect expansion of said microspheres , and withdrawing gas from said flexible container , and agitating said thermally expandable microspheres during the expansion.2. A method according to claim 1 , wherein gas is withdrawn from said flexible container through a conduit provided with a filter.3. A method according to claim 1 , wherein agitating is performed by rotating the flexible container during the expansion of the microspheres.4. A method according to claim 1 , wherein the thermally expandable microspheres are pre-mixed with a dispersing agent to prevent agglomeration of said microspheres.5. A method according to claim 4 , wherein said dispersing agent is silicon dioxide or titanium dioxide.6. A method according to claim 2 , wherein after completed expansion claim 2 , gas is blown through said filter to free it from microspheres.7. An expansion device for preparing expanded thermoplastic microspheres according to claim 1 , the device comprising a flexible container made of a material impermeable to gas and a heat source for heating the thermally expandable thermoplastic microspheres in the flexible container to effect expansion of said microspheres claim 1 , and an outlet for withdrawing ...

Foam composites

Polystyrene-phenolic foam composites and precursor compositions are disclosed. The composites exhibit excellent flame resistance properties and may be suitably prepared in standard expanded polystyrene processing equipment.

Rubber composition for vulcanization molding, process for manufacturing the same and application thereof

A rubber composition for vulcanization molding which can be manufactured into a rubber product with good dimensional stability, good appearance and sufficiently light weight, a process for manufacturing the same, and applications thereof. A rubber composition for vulcanization molding containing hollow particles and a base rubber, wherein the hollow particles are composed of a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein and have a specified further expansion ratio, and the base rubber has a Mooney viscosity ML (1+4) ranging from 5 to 90 at 100° C. Also disclosed is a process for manufacturing the rubber composition, hollow particles used for manufacturing the rubber composition, a masterbatch including the hollow particles and a rubber product manufactured from the rubber composition.

COMPOSITIONS AND METHODS OF MAKING THERMOSET FOAMS FOR SHOE SOLES

A footwear article is provided. The footwear article includes a shoe sole. The shoe sole includes a crosslinked foam polyolefin elastomer having a density less than 0.88 g/cm, the crosslinked foam polyolefin elastomer including: a silane-grafted polyolefin elastomer, a silane-grafted olefin block copolymer, a polyolefin elastomer (POE), an olefin block copolymer (OBC), or a combination thereof; an ethylene vinyl acetate (EVA) copolymer; a crosslinker; a condensation catalyst; and a foaming agent. The shoe sole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.). 1. A footwear article , comprising:a shoe sole,{'sup': '3', 'claim-text': a silane-grafted polyolefin elastomer, a silane-grafted olefin block copolymer, a polyolefin elastomer (POE), an olefin block copolymer (OBC), or a combination thereof;', 'an ethylene vinyl acetate (EVA) copolymer;', 'a crosslinker;', 'a condensation catalyst; and', 'a foaming agent,, 'wherein the shoe sole comprises a crosslinked foam polyolefin elastomer having a density less than 0.88 g/cm, the crosslinked foam polyolefin elastomer comprisingwherein the shoe sole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.).2. The footwear article of claim 1 , wherein the silane-grafted polyolefin elastomer and/or the silane-grafted olefin block copolymer comprises from about 60 wt % to about 97 wt % of an ethylene/α-olefin copolymer.3. The footwear article of or claim 1 , wherein the crosslinker comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides claim 1 , and the crosslinker is present in an amount from greater than 0.15 wt % to about 2 wt % of the crosslinked foam polyolefin elastomer.4. The footwear article of claim 1 , wherein the condensation catalyst comprises an acidic catalyst and/or a tin-based ...

EXPANDED BEADS, MOLDED FOAM, FIBER-REINFORCED COMPOSITE, AND AUTOMOTIVE COMPONENT

Expanded particles including a base resin including a copolymer of an aromatic vinyl compound, a (meth)acrylic acid ester, and an unsaturated dicarboxylic acid, in which the expanded particles have an average cell diameter of 5 to 50 μm and a standard deviation of the average cell diameter of less than 0.8. 1. Expanded particles comprising a base resin including a copolymer of an aromatic vinyl compound , a (meth)acrylic acid ester , and an unsaturated dicarboxylic acid , wherein said expanded particles have an average cell diameter of 5 to 50 μm and a standard deviation of the average cell diameter of less than 0.8.2. The expanded particles according to claim 1 , wherein said aromatic vinyl compound is selected from a styrene-based monomer claim 1 , said (meth)acrylic acid ester is selected from a (meth)acrylic acid alkyl ester (a carbon number of an alkyl group is 1 to 5) claim 1 , and said unsaturated dicarboxylic acid is selected from an aliphatic unsaturated dicarboxylic acid having 2 to 6 carbon atoms claim 1 , and when a total of units derived from three of said aromatic vinyl compound claim 1 , said (meth)acrylic acid ester claim 1 , and said unsaturated dicarboxylic acid is 100 parts by weight claim 1 , said copolymer comprises 30 to 80 parts by weight of the unit derived from said aromatic vinyl compound claim 1 , 8 to 35 parts by weight of the unit derived from said (meth)acrylic acid ester claim 1 , and 10 to 50 parts by weight of the unit derived from said unsaturated dicarboxylic acid.3. The expanded particles according to claim 1 , wherein said aromatic vinyl compound is selected from styrene claim 1 , α-methylstyrene claim 1 , vinyltoluene claim 1 , ethylstyrene claim 1 , i-propylstyrene claim 1 , t-butylstyrene claim 1 , dimethylstyrene claim 1 , bromostyrene claim 1 , chlorostyrene claim 1 , divinylbenzene claim 1 , trivinylbenzene claim 1 , divinyltoluene claim 1 , divinylxylene claim 1 , bis(vinylphenyl)methane claim 1 , bis(vinylphenyl)ethane ...

Nucleating Agent for Foamable Cable Insulation

A foamable composition comprises in weight percent based on the weight of the composition: (A) 45 to 95 wt % HDPE, (B) 4 to 54 wt % LDPE, and (C) 0.01 to 2 wt % of a nucleating agent comprising in weight percent based on the weight of the nucleating agent: (1) 20 to 80 wt % of fluororesin, e.g., PTFE, and (2) 80 to 20 wt % of expandable polymeric microspheres.

FILM ADHESIVE

Curable compositions are provided which comprise: a) 30-80 wt % of a room temperature liquid epoxy resin; b) 0.5-10 wt % of an epoxy curative; c) 5-40 wt % of a thermoplastic resin; and d) 0.5-10 wt % of a physical blowing agent. In some embodiments, the curable compositions may be fire retardant. In some embodiments, the curable compositions may be used in the form of films, and more particularly as core splice film adhesives. 1. A curable composition comprising:a) 30-80 wt % of a room temperature liquid epoxy resin;b) 0.5-10 wt % of an epoxy curative;c) 5-40 wt % of a thermoplastic resin; andd) 0.5-10 wt % of a physical blowing agent.2. The curable composition according to containing no epoxy resin other than room temperature liquid epoxy resin.3. The curable composition according to containing an epoxy/reactive diluent room temperature liquid epoxy resin.4. The curable composition according to containing a mixture of a neat room temperature liquid epoxy resin and an epoxy/reactive diluent room temperature liquid epoxy resin.5. The curable composition according to containing 40-60 wt % of the room temperature liquid epoxy resin.6. The curable composition according to wherein the thermoplastic resin has a softening point of between 60° C. and 150° C. claim 1 , as measured by DIN EN ISO 306 method A50.7. The curable composition according to wherein the thermoplastic resin is a polymer comprising phenylene oxide (-Ph-O—) units in its polymer backbone.8. The curable composition according to wherein the thermoplastic resin is a copolymer of bisphenol a and epichlorhydrin.9. The curable composition according to wherein the thermoplastic resin is a polyethersulfone.10. The curable composition according to containing 16-25 wt % of the thermoplastic resin.11. The curable composition according to additionally comprising 10-20 wt % flame retardants.12. The curable composition according to additionally comprising greater than 5 wt % of an intumescent graphite flame retardant ...

Composition for polishing pad, polishing pad and preparation method thereof

In the composition according to the embodiment, the composition of oligomers that constitute the chains in a urethane-based prepolymer may be adjusted to control the physical properties thereof such as gelation time. Thus, since the micropore characteristics, polishing rate, and pad cut rate of a polishing pad obtained by curing the composition according to the embodiment may be controlled, it is possible to efficiently manufacture high-quality semiconductor devices using the polishing pad.

Hybrid systems consisting of foamed thermoplastic elastomers and polyurethanes

A hybrid material contains a matrix of polyurethane and foamed particles of thermoplastic polyurethane contained therein. A process can be used for producing such hybrid materials and these hybrid materials can be used as bicycle saddles, upholstery and shoe soles.

Unvulcanized liquid or solid silicone rubber and method for using liquid or solid silicone rubber in an injection method

An unvulcanized liquid or solid silicone rubber containing a proportion of a filler material that expands at an increased temperature.

METHOD FOR CREATING A FOAMED MASS SYSTEM

A method for producing a foamed thermally crosslinked mass system, wherein the mass system is foamed at a first temperature in a first step, and crosslinker substances are added to the mass system in a subsequent step at a second temperature lower than the first temperature, wherein the crosslinker substances are crosslinker substances for thermal crosslinking of the mass system. 1. A method for producing a foamed thermally crosslinked mass system , in which a mass system having unexpanded microballoons mixed therein is foamed in a first step at a first temperature , and crosslinker substances are mixed into the mass system in a following step at a second temperature , which is lower than the first temperature , and the blended mass system is shaped to form a layer ,wherein the crosslinker substances are crosslinker substances for thermal crosslinking of the mass system.2. The method of claim 1 , whereinthe first temperature, at which the mass system is foamed, is equal to or above the expansion temperature of the microballoons, and the second temperature, at which the crosslinker substances are added to the mass system, is below the expansion temperature of the microballoons.3. The method of claim 1 , whereinin a first mixing assembly expandable microballoons and optionally further additives are introduced into a mass system;the mass system with the microballoons added is heated under superatmospheric pressure to a temperature which at least corresponds to, and is optionally higher than, the expansion temperature of the microballoons under atmospheric pressure,the microballoons are expanded on emergence from the first mixing assembly,the mass system is introduced into a second mixing assembly, whereby this second mixing assembly the mass system is at a temperature below the expansion temperature of the microballoons,the crosslinker substances are added in the second mixing assembly,the mass system thus blended is shaped.4. The method of claim 1 , whereinin a first ...

USE OF GEOPOLYMERIC ADDITIVE IN COMBINATION WITH NON-BROMINATED FLAME RETARDANT IN POLYMER FOAMS

The invention relates to the use of i) geopolymer and ii) non-brominated, phosphorus- and/or nitrogen-based flame retardants for improving the self-extinguishing properties of a composition comprising polymer. The polymer may be a vinyl aromatic polymer, and may be in a granulate or foam. 1. Use of a) a geopolymer;', 'b) a combination of a geopolymer with an athermanous additive; or', 'c) a geopolymer composite derived from geopolymer and comprising athermanous additive,, 'i) one or more geopolymer additives, wherein the geopolymer additive is'}and a) phosphorus-based flame retardants,', 'b) nitrogen-based flame retardants, and', 'c) phosphorus/nitrogen-based flame retardants,, 'ii) one or more non-brominated flame retardants selected from'}for improving the self-extinguishing properties of a composition comprising vinyl aromatic polymer.2. The use of claim 1 , wherein the composition is expandable vinyl aromatic polymer granulate claim 1 , or an expanded foam product made thereof claim 1 , vinyl aromatic polymer prepared from styrene monomer with optional incorporation of one or more vinyl comonomers and', {'sup': '2', 'c) 0.01-50 wt. % (by polymer weight, including solid and, if any, liquid additives, but exclusive of propellant) of geopolymer composite in powder form, with a particle size in a range of from 0.01 μm to 200 μm and a BET surface in a range of from 0.01 to 10,000 m/g.'}], 'which composition comprises'}3. The use of claim 1 , wherein the composition does not comprise polymeric brominated flame retardant claim 1 ,preferably wherein the composition does not comprise brominated flame retardant,in particular wherein the composition does not comprise halogenated flame retardant.4. The use of claim 1 , wherein the athermanous additive is one or more selected from the group consisting of(1) carbon-based athermanous additives,(2) metal athermanous additives,(3) metal oxide athermanous additives, and(4) metal sulfide athermanous additives.5. The use of claim 4 ...

SELF-SEALING TIRE SEALANT AND PNEUMATIC VEHICLE TIRE

Self-sealing tire sealants are provided which contain fragments and/or residues of expanded solids, where the solids are selected from the group containing expandable graphite and microspheres. In some aspects, the microspheres include at least isobutane and/or isopentane as blowing agents. The microspheres may also have a shell containing at least one polymer, and in some cases the polymer is at least one copolymer of acrylonitrile and methyl acrylate. The self-sealing tire sealant may further include graphene structures. In some aspects the interior of a pneumatic vehicle tire has the self-sealing tire sealant disposed on the inner surface, opposite the tire tread, and the layer thickness of the tire sealant may be from 0.5 to 8 mm. 17.-. (canceled)8. A self-sealing tire sealant comprising fragments of expanded solids , the solids being selected from the group containing expandable graphite and microspheres.9. The self-sealing tire sealant of claim 8 , wherein the microspheres comprise at least one of isobutane and isopentane as blowing agents.10. The self-sealing tire sealant of claim 8 , wherein the microspheres have a shell comprising at least one polymer.11. The self-sealing tire sealant of claim 10 , wherein the polymer is at least one copolymer of acrylonitrile and methyl acrylate.12. The self-sealing tire sealant of further comprising graphene structures.13. The self-sealing tire sealant of as disposed on an inner surface of claim 8 , and opposite the tread of claim 8 , a pneumatic vehicle tire.14. The self-sealing tire sealant of as disposed on the inner surface and having a layer thickness of from 0.5 to 8 mm.15. A self-sealing tire sealant comprising residues of expanded solids claim 13 , the solids being selected from the group containing expandable graphite and microspheres.16. The self-sealing tire sealant of claim 15 , wherein the microspheres comprise at least one of isobutane and isopentane as blowing agents.17. The self-sealing tire sealant of ...

HIGHLY COMPLIANT NON-SILICONE PUTTIES AND THERMAL INTERFACE MATERIALS INCLUDING THE SAME

Disclosed are exemplary embodiments of highly compliant non-silicone putties and thermal interface materials including the same. In an exemplary embodiment, a non-silicone putty includes at least one thermally-conductive filler and at least one other filler including hollow polymeric particles in a non-silicone polymer base or matrix. The non-silicone putty may have a thermal conductivity of at least about 3 Watts per meter-Kelvin and/or may have a hardness of less than about 30 Shore 00. 1. A thermal interface material comprising at least one thermally-conductive filler and at least one other filler including hollow polymeric particles in a non-silicone polymer base or matrix , wherein the thermal interface material has a thermal conductivity of at least about 3 Watts per meter-Kelvin and/or a hardness of less than about 30 Shore 00.2. The thermal interface material of claim 1 , wherein the hollow polymeric particles of the at least one other filler comprise hollow polymeric spheres.3. The thermal interface material of claim 1 , wherein the hollow polymeric particles of the at least one other filler comprise expandable microspheres.4. The thermal interface material of claim 1 , wherein the hollow polymeric particles of the at least one other filler comprise a thermoplastic shell encapsulating a low boiling point liquid hydrocarbon.5. The thermal interface material of claim 1 , wherein the hollow polymeric particles of the at least one other filler comprise EXPANCEL microspheres.6. The thermal interface material of claim 1 , wherein the non-silicone polymer base or matrix comprises a non-silicone oil gel resin.7. The thermal interface material of claim 1 , wherein the non-silicone polymer base or matrix comprises:a styrene and ethylene/butylene copolymers; and/ora styrene and ethylene/propylene copolymers.8. The thermal interface material of claim 1 , wherein the at least one thermally-conductive filler comprises aluminum and/or metal oxide powder.9. The thermal ...

THERMALLY EXPANDABLE THERMOPLASTIC MICROSPHERES AND PROCESS FOR THEIR PREPARATION

The invention relates to a process for the manufacture of thermally expandable thermoplastic microspheres. The process comprises, providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent, providing to the mixture a colloidal silica that is surface-modified with at least hydrophobic organosilane groups and forming an emulsion. A polymerisation is performed to form the thermally expandable thermoplastic microspheres. The invention further relates to thermally expandable thermoplastic micro spheres, expanded micro spheres and their use in the manufacture of products. 1. A process for the manufacture of thermally expandable thermoplastic microspheres , the process comprising:providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent,providing a colloidal silica that is surface-modified with at least hydrophobic organosilane groups;contacting the mixture of one or more monomers and at least one blowing agent with the surface-modified colloidal silica and forming an emulsion; andpolymerising to form an aqueous slurry of thermally expandable thermoplastic microspheres.2. The process according to claim 1 , wherein the colloidal silica that is surface-modified with at least hydrophobic organosilane groups have a particle size of 2-150 nm claim 1 , when calculated from the specific surface area (SSA) in m/g according to the formula 2727/SSA.3. The process according to claim 1 , wherein the hydrophobic organosilane groups are selected from alkyl claim 1 , alkenyl and aryl silyl groups claim 1 , for example methylsilyl claim 1 , dimethylsilyl claim 1 , trimethylsilyl claim 1 , propylsilyl claim 1 , vinylsilyl claim 1 , octylsilyl claim 1 , phenylsilyl claim 1 , mercaptopropylsilyl claim 1 , methacrylamidopropylsilyl and iso-butylsilyl groups.5. The process according to claim 4 , wherein the colloidal silica that is surface- ...

A PLASTIC ARTICLE AND A METHOD FOR MANUFACTURING THEROF

A plastic article made of a plastic material with metal antibacterial components and macroscopic-sized marker flakes dispersed in the plastic material. 1. A plastic article made of a plastic material comprising metal antibacterial components and macroscopic-sized marker flakes dispersed in the plastic material.2. The plastic article according to wherein the plastic material is translucent.3. The plastic article according to claim 1 , wherein the metal antibacterial components are metal nanoparticles and the plastic material comprises the metal nanoparticles immobilized on a blowing agent by means of soaking the blowing agent with a colloidal solution of the metal nanoparticles claim 1 , and drying of the blowing agent claim 1 , which are mixed with the granulate of the plastic material while processing the plastic material.4. The plastic article according to claim 1 , wherein metal antibacterial components are metal nanoparticles that are comprised in the plastic material in a concentration not less than 1 ppm claim 1 , and preferably in the concentration from 1 to 100 ppm.5. The plastic article according to claim 1 , wherein the marker flakes are comprised in the plastic material in the amount so as the visible surface of the marker flakes on the plastic article surface is from 1 to 99% of the total surface of the plastic article.6. The plastic article according to claim 1 , wherein the average surface of the marker flake ranges from 0.1 to 3 mm.7. The plastic article according to claim 1 , wherein the marker flakes are non-transparent.8. The plastic article according to claim 1 , wherein the metal antibacterial components are metal nanoparticles and the color of the marker flakes corresponds with the color of the macroscopic form of the metal nanoparticle comprised a plastic material of the plastic article.9. The plastic article according to claim 1 , wherein the metal antibacterial components are metal nanoparticles selected from the group consisting of silver ...

POLYCARBONATE-BASED RESIN FOAM PARTICLE AND FOAM MOLDED BODY

Expanded particles of a polycarbonate-based resin containing a polycarbonate-based resin containing a component derived from bisphenol A as abase resin, the expanded particles being expanded particles of a polycarbonate-based resin satisfying any one of the following conditions (a) to (c) in a GC/MS chart: (a) a peak derived from a molecular weight of from 145 to 230 and a peak derived from a molecular weight of from 320 to 350 are shown; (b) a peak derived from a molecular weight of from 210 to 230 is shown; and (c) a peak derived from a molecular weight of from 290 to 320 is shown. 1. Expanded particles of a polycarbonate-based resin comprising , as a base resin , a polycarbonate-based resin containing a component derived from bisphenol A ,the expanded particles satisfying any one of the following conditions (a) to (c) in a GC/MS chart with a retention time as an abscissa obtained through measurement by a reactive pyrolysis GC/MS method utilizing reaction of methyl etherifying an ester bond contained in the polycarbonate-based resin through hydrolysis with tetramethylammonium hydroxide as a reaction reagent under condition of helium used as a carrier gas with a carrier gas flow rate of 34 mL/min:(a) a peak derived from a molecular weight of from 145 to 230 and a peak derived from a molecular weight of from 320 to 350 are shown,the peak derived from a molecular weight of from 145 to 230 is observed at a retention time in a range of −15 minutes or less based on a retention time of a maximum peak showing the component derived from bisphenol A, andthe peak derived from a molecular weight of from 320 to 350 is observed at a retention time in a range of +10 minutes or less based on a retention time of a maximum peak showing the component derived from bisphenol A;(b) a peak derived from a molecular weight of from 210 to 230 is shown, andthe peak derived from a molecular weight of from 210 to 230 is observed at a retention time in a range of 5 minutes or less based on a ...

Method for manufacturing a construction material

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of a construction material. A method of manufacturing a construction material includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of the construction material to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with the construction material.

PRESSURE SENSITIVE ADHESIVE FOAM

The present disclosure relates to a pressure sensitive adhesive foam comprising a rubber-based elastomeric material and at least one hydrocarbon tackifier, wherein the hydrocarbon tackifier(s) have a Volatile Organic Compound (VOC) value of less than 1000 ppm and a Volatile Fogging Compound (FOG) value of less than 1500 ppm, when measured by thermogravimetric analysis according to the weight loss test methods described in the experimental section. The present disclosure also relates to a method of manufacturing such a pressure sensitive adhesive foam and uses thereof. 112-. (canceled)13. A multilayer pressure sensitive adhesive assembly comprising:(1) a first skin layer comprising a polyarcrylate pressure sensitive adhesive; (a) a rubber-based elastomeric material;', '(b) at least one hydrocarbon tackifier having a Volatile Organic Compound (VOC) value less than 100 ppm and a Volatile Fogging Compound (FOG) value less than 1000 ppm when measured by thermogravimetric analysis according to the weight loss test methods described in the experimental section; and', '(c) at least one plasticizer comprising polyisobutylene having a Volatile Organic Compound (VOC) value less than 100 ppm and a Volatile Fogging Compound (FOG) value less than 1000 ppm, wherein the polyisobutylene has a molecular weight in a range of 36,000 to 75,000 grams/mole when measured by thermogravimetric analysis according to the weight loss test methods described in the experimental section; and, '(2) a core layer comprising a pressure sensitive adhesive foam comprising'}(3) a second skin layer comprising a polyacrylate pressure sensitive adhesive.14. The multilayer pressure sensitive adhesive assembly of claim 13 , further comprising a primer layer positioned between the first skin layer and the core layer claim 13 , between the second skin layer and the core layer claim 13 , or both.15. The multilayer pressure sensitive adhesive assembly of claim 14 , wherein the primer layer is crosslinked.16. The ...

LARGE-DIAMETER HEAT-EXPANDING MICROSPHERES AND METHOD FOR PRODUCING SAME

Object: 1. Heat-expandable microspheres having a foaming agent encapsulated in an outer shell of a polymer , the heat-expandable microspheres having an average particle size (D50) before foaming of from 100 to 500 μm , and a coefficient of variation of a particle size distribution before foaming (logarithmic scale) of not greater than 15%;the outer shell of the polymer comprising from 25 to 100 mass % of a mixture of acrylonitrile and methacrylonitrile and from 0 to 75 mass % of at least one type of monomer selected from the group consisting of vinylidene chloride, acrylic acid esters, methacrylic acid esters, styrene, acrylic acid, methacrylic acid, and vinyl acetate;the foaming agent comprising isopentane, isooctane, and isododecane; anda foaming starting time being from 155 to 210° C.2. The heat-expandable microspheres according to claim 1 , wherein an average particle size of foamed particles formed by thermally expanding the heat-expandable microspheres is from 200 to 1000 μm.3. (canceled)4. (canceled)5. (canceled)6. A paint or molded product comprising the heat-expandable microspheres according to .7. A laminate comprising a coating film containing foamed particles formed by thermally expanding the heat-expandable microspheres according to claim 1 , or a molded product comprising the foamed particles.8. (canceled) The present invention relates to heat-expandable microspheres and a method for producing heat-expandable microspheres, and more particularly to heat-expandable microspheres capable of forming strong, large-diameter foamed particles, a molded product or the like containing the heat-expandable microspheres or the foamed particles, and a method for producing heat-expandable microspheres.In addition to applications as a foamed ink, the applications of heat-expandable microspheres (also called “heat-expandable microcapsules”) are spreading to various fields such as fillers for paints or plastic molded products for the purpose of weight reduction. Heat- ...

Foam particles, and moulded article thereof

The present invention is concerned with expanded beads that are olefin-based thermoplastic elastomer expanded beads containing a coloring agent, wherein an apparent density of the expanded beads is 40 to 300 g/L, and an average surface layer membrane thickness (a) is 3 to 25 μm, and a molded article thereof, and is able to provide expanded beads capable of producing an expanded beads molded article which is excellent in in-mold moldability and excellent in tensile characteristics and an expanded beads molded article using the expanded beads.

RESIN COMPOSITION FOR PREPARING POLYOLEFIN BASED FLAME RETARDANT FOAMED ARTICLES AND FLAME RETARDANT FOAMED ARTICLES THEREFROM

The present disclosure relates to a resin composition for preparing polyolefin-based foamed articles having flame retardancy and flame retardant foamed articles formed therefrom. The resin composition according to the present disclosure can provide foamed articles having excellent flame retardancy and flame resistance while exhibiting a high fusion ratio and a low shrinkage ratio in the foam molding. 1. A resin composition for preparing polyolefin-based flame retardant foamed articles , comprising 94 to 97 wt % of a polyolefin resin and 3 to 6 wt % of a flame retardant ,wherein the flame retardant contains a bromine-based flame retardant, a phosphorus-based flame retardant, and a nitrogen-based flame retardant in a weight ratio of 1:0.6 to 30:0.6 to 20.2. The resin composition for preparing polyolefin-based flame retardant foamed articles of claim 1 ,wherein the flame retardant consists of 0.06 to 1.75 wt % of the bromine-based flame retardant, 0.5 to 3.25 wt % of the phosphorous-based flame retardant, and 0.5 to 2.25 wt % of the nitrogen-based flame retardant based on a total weight of the resin composition.3. The resin composition for preparing polyolefin-based flame retardant foamed articles of claim 1 ,wherein the polyolefin resin is at least one resin selected from the group consisting of polyethylene, polypropylene, polybutene, polyisobutylene, polymethylpentene, an ethylene-propylene copolymer, an ethylene-butene copolymer, and a propylene-butene copolymer.4. Polyolefin-based flame retardant foamed articles comprising foam-molded articles of the resin composition according to .5. The polyolefin-based flame retardant foamed articles of claim 4 ,having an HF-1 rating according to a UL 94 HBF Test, andsatisfying a carbonized distance of 15 cm or less according to Article 7 (Standards and Methods for Flame Resistant Performance Measurement of synthetic resin plates, plywood and the like) of ‘Flame Resistant Performance Standards’ of the Korean Ministry of Public ...

System and method for flexible sealant with density modifier

The disclosed latex system comprises a one-component, closed-cell, semi-foam, mastic sealant using gas-filled, flexible, organic microspheres to create a product that is elastic and compressible under pressure without protruding in an outward direction when compressed, thereby allowing the applied sealant to compress in an enclosed, maximum-filled channel unlike typical mastic sealants (while retaining the ability to rebound). This allows the sealant to function as a gasket, and, once fully cured, to have properties including vibration damping, insulating, and condensation resistance. The sealant can be formulated as an air barrier or a vapor barrier and at various degrees of moisture resistance. It may be applied by different packaging variations including aerosol can (bag in can or bag on valve), airless sprayer, cartridge tubes, foil tubes, squeeze tubes, and buckets to be applied using a brush, trowel, spatula, etc. The disclosed mastic sealant can also be formulated to be smoke-resistant and flame-resistant.

HIGH-ELASTICITY EXTRUDED FOAM COMPOSITION

Provided is a composition for a highly elastic extruded foam. The composition includes a peroxide-crosslinkable thermoplastic polymer, an organic peroxide, thermo-expandable microspheres, and a silane coupling agent. 1. A composition for a highly elastic extruded foam , comprising a peroxide-crosslinkable thermoplastic polymer , an organic peroxide , thermo-expandable microspheres , and a silane coupling agent.2. The composition according to claim 1 , wherein the peroxide-crosslinkable thermoplastic polymer is selected from the group consisting of ethylene-based polymers claim 1 , chlorinated polyethylene claim 1 , ethylene-propylene rubbers claim 1 , thermoplastic elastomers claim 1 , and mixtures thereof.3. The composition according to claim 2 , wherein the ethylene-based polymer is an ethylene homopolymer or ethylene copolymer.4. The composition according to claim 2 , wherein the ethylene-propylene rubber is an EPM rubber or EPDM rubber.5. The composition according to claim 2 , wherein the thermoplastic elastomer is selected from the group consisting of styrene-butadiene-styrene (SBS) block copolymers claim 2 , styrene-isoprene-styrene (SIS) block copolymers claim 2 , styrene-ethylene-butadiene-styrene (SEBS) block copolymers claim 2 , styrene-butylene-butadiene-styrene (SBBS) block copolymers claim 2 , and styrene-ethylene-propylene-styrene (SEPS) block copolymers claim 2 , 1 claim 2 ,2-polybutadiene (1 claim 2 ,2-PB) claim 2 , thermoplastic polyolefin (TPO) claim 2 , thermoplastic vulcanizates (TPVs) claim 2 , and mixtures thereof.6. The composition according to claim 1 , wherein the expansion start temperature (T) of the thermo-expandable microspheres is equal to or lower than the 1 minute half-life temperature of the organic peroxide crosslinking agent.7. The composition according to claim 1 , wherein the content of the thermo-expandable microspheres is 0.5 to 20 parts by weight claim 1 , based on 100 parts by weight of the peroxide-crosslinkable ...