HAERTBARES STICKING MEANS.

PRESSURE-SENSITIVE ADHESIVE COMPOSITION ON ACRYLATE BASIS.

THERMALLY AND WITH AKTINI RADIATION HARDENABLE MATERIAL MIXTURE, PROCEDURE FOR ITS PRODUCTION AND ITS USE

DETENTION ADHESIVES WITH SMALL QUANTITIES STYRENE

ACRYLATE-BASED ADHESIVE POLYMER

A (meth)acrylate-based adhesive polymer composition is improved by the use of itaconic acid and a hydroxyalkyl (meth)acrylate, such as hydroxyethyl acrylate, polymerized therein. From 1 to 5 weight percent itaconic acid and from 1.5 to 17 weight percent hydroxyalkyl (meth)acrylate are used to improve the combinations of tack and shear strength in these adhesive polymers. With an optional tackifier, these polymers are found especially useful in pressure sensitive adhesive applications.

CURABLE FILM-FORMING COMPOSITIONS CONTAINING HYDROXYL FUNCTIONAL ACRYLIC POLYMERS AND BISUREA COMPOUNDS AND MULTILAYER COMPOSITE COATINGS

A curable film-forming composition is provided, comprising: (a) an acrylic polyol prepared from a monomer mixture comprising a hydroxyl functional monomer, wherein the hydroxyl functional monomer comprises a hydroxyalkyl group with an alkyl chain of at least four carbon atoms; (b) a rheology modifier comprising: (1 ) a non-aqueous dispersion of an internally crosslinked organic polymer; and (2) a reaction product of an amine and an isocyanate; and (c) a curing agent comprising functional groups that are reactive with hydroxyl functional groups. Also provided are a multi-component composite coating that includes the curable film-forming composition described above and methods for forming a composite coating on a substrate.

NON-WHITENING EMULSION PRESSURE SENSITIVE ADHESIVES

Water resistant, non-water-whitening acrylic emulsion pressure sensitive adhesive compositions for use with energy control films and optical films are disclosed. These emulsion pressure sensitive adhesives comprise 10% to 50% of hydroxy alkyl (meth)acrylate, 50% to 90% of alkyl (meth)acrylate and 0% to 6% di-acrylate crosslinker. These emulsion pressure sensitive adhesives can be used in the water lamination process, and exhibit less than 2% haze, less than 2% opacity and greater than 95% transmittance in the wet lamination process.

WATERBORNE CROSSLINKABLE COATING COMPOSITIONS

Disclosed are aqueous, storage-stable, crosslinkable polymer compositions comprising: (a) an aqueous dispersion of a an acrylic polymer component containing certain carbonyl-containing functional-groups; (b) a nitrogencontaining compound having at least two carbonyl-reactive nitrogen groups; and (c) optionally, co-solvents, pigments, fillers, dispersants, wetting agents, anti-foam agents, UV absorbers, antioxidants, biocides, and stabilizers. Such compositions are useful as coatings or binders in coating compositions, or as adhesives.

Haftkleber auf Basis von Lösungen von Acryl- oder Methacrylsäureester-Mischpolymerisaten in organischen Lösungsmitteln

Photocurable resin composition and cured product of same, resin sheet and production method for same, and display device

Adhesive composition and adhesive sheet

Urea-based and urethane-based pressure sensitive adhesive blends

Method for manufacturing laminated body

Can be radical-curable adhesive composition containing the same and polarizing plate and optical member

Process for forming solid pressure sensitive adhesive polymer microspheres

점착제층 부착 편광 필름, 그 제조 방법 및 화상 표시 장치

... 편광자, 폴리비닐알코올계 수지를 함유하는 앵커 코팅층 및 점착제층을 이 순서대로 갖는 점착제층 부착 편광 필름으로서, 상기 점착제층이 이소시아네이트계 가교제를 함유하지 않아도, 상기 앵커 코팅층과 점착제층의 투묘력이 양호한 점착제층 부착 편광 필름을 제공한다. 편광자, 앵커 코팅층 및 점착제층을 이 순서대로 갖는 점착제층 부착 편광 필름으로서, 상기 앵커 코팅층은 수계 수지 및 히드록실기와 반응 가능한 제1급의 알코올을 분자 말단에 적어도 하나 갖는 화합물(a)을 함유하는 수계 수지 조성물로부터 형성된 것이며, 상기 점착제층은 히드록실기를 갖는 베이스 폴리머 및 머캅토기 함유 실란 커플링제를 함유하는 점착제 조성물로부터 형성된 것이다.

점착 필름 및 그의 제조방법

... 각종 표면 보호 필름용 등에 사용하는, 피시 아이가 적고, 기계적 강도 및 내열성이 우수하며, 양호한 점착 특성을 갖는 점착필름을 제공한다. 폴리에스테르 필름의 적어도 편면에, 탄소수가 4 이상인 알킬기를 에스테르 말단에 갖는 (메타)아크릴레이트 유닛을 20중량% 이상 갖는 (메타)아크릴 수지를 함유하는 점착층을 갖고, 당해 점착층과 폴리메틸메타크릴레이트판과의 점착력이 l mN/cm 이상인 점착필름.

ADHESIVE COMPOSITION

천연물 유래 아이소솔바이드를 포함하는 아크릴 공중합체, 이를 포함한 아크릴 공중합체 수지 및 필름, 이의 제조방법

... 본 발명은 하기 화학식 1과 같은 유연성 제어요소, 접착력 제어요소, 응집력 제어요소를 포함하는 천연물 유래 아이소솔바이드를 포함하는 아크릴 공중합체에 관한 것이다. [화학식 1] ...

ANTISTATIC ACRYLIC PRESSURE-SENSITIVE ADHESIVE

An antistatic acrylic pressure-sensitive adhesive characterized by comprising an acrylic copolymer (A) having a hydroxy group and an alkylene oxide chain in side chains, an ionic compound (B), a hardener (C), and an antioxidant (D). The antistatic pressure-sensitive adhesive is suitable for use as a pressure-sensitive adhesive for pressure-sensitive adhesive films for protecting the surface of an optical member. The pressure-sensitive adhesive solution before incorporation of the hardener has satisfactory storage stability. The antistatic pressure-sensitive adhesive has excellent transparency, is almost colorless, has excellent strippability after application, and is less apt to cause electrification upon stripping. © KIPO & WIPO 2008 ...

편광판용 점착제 조성물, 점착 시트 및 점착제층 부착 편광판

... [과제] 액정셀의 휨(벤딩)을 억제할 수 있고, 또한 내구성이 우수한 점착제층을 형성하는 것이 가능한 편광판용 점착제 조성물을 제공한다. [해결수단] (A)알킬기의 탄소수가 4~18의 (메타)아크릴산 알킬에스터 및 수산기 함유 모노머를 포함하는 모노머 성분을 공중합하여 얻어지고, 또한 겔 퍼미에이션 크로마토그래피법/다각도 레이저 광산란 검출기(GPC-MALS)에 의해 측정되는 분기도가 0.55 이하인 (메타)아크릴계 공중합체와, (B)아이소사이아네이트 화합물을 함유하는 것을 특징으로 하는 편광판용 점착제 조성물.

광학적으로 투명한 접착제와의 직접적인 접합을 사용하는 나노 크기의 금속에 기초한 새로운 전기 전도체의 보호

... 본 발명은 전기 전도체를 안정화시키는 접착제 조성물이다. 접착제 조성물은 베이스 중합체, 및 금속의 광산화를 방해하는 첨가제를 포함한다. 접착제 조성물이 전기 전도체와 접촉할 때, 전기 전도체는 약 500시간의 광 노출 기간에 걸쳐 약 20% 미만의 전기 저항 변화를 갖는다.

RESIN COMPOSITION AND DISPLAY APPARATUS

Provided is a thin display apparatus wherein a display section performs high luminance and high contrast display without generating a display failure due to deformation of the display section. The display apparatus is provided with an image display section (2), and a light transmitting protecting section (3) arranged on the image display section (2). A cured resin layer (5) is arranged between the display section (2) and the protecting section (3). The cured resin layer (5) has a transmissivity of 90% or more in a visible light area and a storage elastic modulus of 1810Pa or less at 25°C. The cured resin layer (5) is formed of a resin composition having a curing shrinkage factor of 5% or less.7 © KIPO & WIPO 2009 ...

ADHESIVE COMPOSITION FOR OPTICAL FILM HAVING EXCELLENT RE-SEPARATION AND COATABILITY AND MAINTAINING EXCELLENT DURABILITY EVEN AFTER LONG-TERM STORAGE

PURPOSE: An adhesive composition is provided to effectively coat even in state comprising a large amount of solid phase, to extremely increase productivity of an optical film for a polarizer, and to able to provide an excellent adhesive with excellent reliability and reworkability, etc. CONSTITUTION: An adhesive composition comprises 2.5-5.5 parts by weight of a hydroxy group-containing monomer and 0.05-0.3 parts by weight of a carboxy group-containing monomer as polymerization units, and comprises an acrylic polymer of which average molecular weight is 700,000-1,200,000 and a polyfunctional crosslinking agent. A coating solid content of the composition is 20 weight% or more. A gel fraction after crosslinking reaction is 55-85%. The hydroxyl group-containing monomer is hydroxyalkyl (meth)acrylate or hydroxyalkyleneglycol (meth)acrylate. COPYRIGHT KIPO 2013 ...

ADHESIVE COMPOSITION FOR ELECTROMAGNETIC WAVE-SHIELDING FILM, WHICH COMPRISES ACRYLIC COPOLYMER AND MULTIFUNCTIONAL ISOCYANATE CROSSLINKING AGENT, AND ELECTROMAGNETIC WAVE-SHIELDING FILTER USING THE SAME

PURPOSE: An adhesive composition for an electromagnetic wave-shielding film and an electromagnetic wave-shielding filter using the same are provided to improve the durability and color stability by preventing the oxidation of copper. CONSTITUTION: The acrylic adhesive composition for an electromagnetic wave-shielding film comprises an acrylic copolymer of a (meth)acrylic ester monomer having an alkyl group with C1-12 and a vinyl monomer containing a hydroxyl group, and a multifunctional isocyanate crosslinking agent. The electromagnetic wave-shielding filter for a plasma display panel becomes transparent by using the above-mentioned acrylic adhesive composition. © KIPO 2005 ...

접착제 및 발광 장치

... 본 발명의 접착제는 에폭시 화합물과, 양이온 촉매와, 아크릴산과 히드록실기를 갖는 아크릴산에스테르를 포함하는 아크릴 수지를 함유한다. 아크릴 수지 중의 아크릴산이 에폭시 화합물과 반응하여, 아크릴 수지의 섬과 에폭시 화합물의 바다와의 연결을 발생시킴과 함께, 산화막의 표면을 거칠게 하여 에폭시 화합물의 바다와의 앵커 효과를 강하게 한다. 또한, 아크릴 수지 중의 히드록실기를 갖는 아크릴산에스테르가, 히드록실기의 극성에 의하여 배선에 대하여 정전기적인 접착력을 얻는다. 이와 같이 산화막에 대하여 아크릴 수지의 섬 및 에폭시 화합물의 바다로 구성된 경화물 전체에서 접착됨으로써, 우수한 접착력을 얻는다.

내구성 플라스틱 결합을 위한 광학적으로 투명한 접착제

... 본 발명은 약 25 내지 약 80 질량부의 알킬 (메트)아크릴레이트, 약 15 내지 약 50 질량부의 하이드록실 기-함유 단량체, 및 약 5 내지 약 25 질량부의 유리 전이 온도(Tg)가 약 50℃ 이상인 거대단량체를 포함하는 단량체 혼합물의 공중합체이다. 공중합체는 실질적으로 산 기를 함유하지 않는다.

자외선 경화형 점착 시트 및 점착 시트

... 본 발명이 해결하고자 하는 과제는, 단차 추종성, 시트 유지성, 내습열 백화성이 뛰어나고, 재단시에 칼날에 풀이 남지 않는 자외선 경화형 점착 시트를 제공하는 것이다. 본 발명은, 수산기 및/또는 카르복실기를 갖는 아크릴 수지 (A), 가교제 (B), 2개 이상의 (메타)아크릴로일기를 갖는 (메타)아크릴 화합물 (C), 유기용제 (D), 및, 광중합 개시제 (E)를 함유하는 점착제 조성물을 박리지에 도공하고, 유기용제 (D)를 건조시켜 얻어지는 자외선 경화형 점착 시트이며, 상기 자외선 경화형 점착 시트의 온도 20℃, 주파수 10-7Hz의 조건에서 측정한 저장 탄성률이, 5×103Pa을 초과하고 1×105Pa 이하인 것을 특징으로 하는 자외선 경화형 점착 시트를 제공하는 것이다.

OPTICAL ADHESIVE SHEET

Provided is an optical adhesive sheet having corrosion resistance regarding a silver nanowire layer. The optical adhesive sheet for a silver nanowire layer of the present invention is an adhesive sheet having an adhesive layer. The amount of acrylate ions extracted from the adhesive layer with pure water under the condition of 100°C for 45 minutes is less than equal to 5 μg/g for 1 g of the adhesive layer. The adhesive layer is favorably an acrylic adhesive layer. COPYRIGHT KIPO 2016 ...

지방족 다환구조를 포함하는 자기조직화막의 하층막 형성조성물

... [과제] 자기조직화막이 원하는 수직패턴으로 배열되기 쉽도록 하기 위하여 필요한 하층막을 형성하기 위한 조성물을 제공한다. [해결수단] 지방족 다환 화합물의 지방족 다환 구조를 주쇄에 포함하는 단위 구조를 갖는 폴리머를 포함하는 자기조직화막의 하층막 형성조성물. 폴리머가 지방족 다환 화합물의 지방족 다환 구조와, 방향환 함유 화합물의 방향환 구조, 또는 비닐기 함유 화합물의 비닐기에서 유래하는 중합쇄를 주쇄에 포함하는 단위 구조를 갖는 폴리머이다. 폴리머가 하기 식(1): [화학식 1] (식 중, X는 단결합, 비닐기 함유 화합물에서 유래하는 비닐구조를 중합쇄로 하는 2가의 기, 또는 방향환 함유 화합물에서 유래하는 방향환 함유 구조를 중합쇄로 하는 2가의 기이며, Y는 지방족 다환 화합물에서 유래하는 지방족 다환 구조를 중합쇄로 하는 2가의 기이다.)로 표시되는 단위구조를 가진다. 지방족 다환 화합물이 2환 내지 6환의 디엔 화합물이다. 지방족 다환 화합물이 디시클로펜타디엔, 또는 노보나디엔이다.

Optical laminate and display device including the same

Pressure-sensitive adhesive film and touch panel

The present invention relates to an adhesive film and to a touch panel. According to the present invention, even when the adhesive film is applied to a touch panel, for example, a capacitive touch panel, and directly attached to a conductive layer, the adhesive film effectively prevents the resistance of the conductive layer from being raised and exhibits superior heat resistance. In addition, according to the present invention, an adhesive film having superior durability, optical characteristics, cuttability, workability, wettability and resistance to warping is provided.

Adhesive composition, adhesive film, and surface-protective adhesive film

The present invention provides an adhesive composition, an adhesive film, and a surface-protective adhesive film that have excellent antistatic performance, that have excellent adhesive strength balance in the peel rate of a slow rate region and a high rate region, and that further also have excellent durability performance and reworking performance. In accordance with the present invention, an adhesive composition containing an antistatic agent, wherein the adhesive composition includes an acrylic-based polymer having, as the main component thereof, an alkyl (meth)acrylate having a C4 to C10 alkyl group; contains, with respect to 100 parts by weight of the acrylic-based polymer, 85 to 98.5 parts by weight of the main component alkyl (meth)acrylate, 0.1 to 15 parts by weight of a hydroxyl group-containing copolymerizable monomer, 0.1 to 2 parts by weight of a carboxyl group-containing copolymerizable monomer, and 0.1 to 5 parts by weight of a cross-linking agent; the acid value of the acrylic-based ...

Adhesive composition, adhesive agent, and adhesive sheet

An adhesive composition for constituting an adhesive agent that is brought into contact with a metallic member upon use, said adhesive composition comprising: a (meth)acrylic acid ester polymer (A) which contains a monomer having a hydroxy group in an amount of more than 15% by mass and 30% by mass or less and does not contain a monomer having a carboxyl group as the monomer constituting the polymer; and a benzotriazole-type anti-corrosive agent (B). The adhesive composition does not corrode a metallic member when the adhesive composition is in contact with the metallic member, and has excellent wet-heat blushing resistance.

Optical adhesive film, method for manufacturing optical adhesive film and touch screen panel comprising optical adhesive film

This invention provides an optical adhesive film containing sheet-like inorganic nanoparticles and curable resin. The optical adhesive film has increased insulation property for moisture and gas and light transmittance and has excellent durability and peeling property.

Adhesive composition and optical member using the same

Pressure-sensitive adhesive composition for a film used for processing wafer

ADHESIVE COMPOSITION FOR A WAFER PROCESSING FILM

The present invention relates to an adhesive composition for a wafer processing film, a wafer processing film, and a semiconductor wafer processing method. In the semiconductor wafer processing process such as a dicing process or a back grinding process, a delaminating force with respect to a wafer to be attached may be effectively reduced to improve process efficiency and prevent the wafer from being warped or cracked.

ADHESIVE COMPOSITION, AND POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

The present invention relates to an adhesive composition, and to a polarizing plate and liquid crystal display device using same. More particularly, the present invention relates to an environmentally friendly adhesive composition, and a polarizing plate and liquid crystal display device using same, wherein the composition is capable of: maintaining the adhesiveness and durability which are required for a typical adhesive, and also reducing the curing time so as to improve productivity by comprising an acryl copolymer, a crosslinking agent, and a basic accelerator at an optimized composition ratio, wherein the acryl copolymer has an average molecular weight of 250,000 to 850,000 and a viscosity of 1,000 to 4,000 cp at 23°C when the solid content is 30% by weight; obtaining a sufficient pot-life by suppressing variations in viscosity; and minimizing the amount of a dilution solvent used during coating.

ADHESIVE COMPOSITION FOR OPTICAL FILMS, ADHESIVE LAYER FOR OPTICAL FILMS, ADHESIVE OPTICAL FILM, AND IMAGE DISPLAY DEVICE

The adhesive composition for optical films containing a (meth)acrylic polymer of 300,000-1,200,000 weight average molecular weight on gel permeation chromatography obtained by copolymerizing as monomer units 30-98.9 weight% of alkyl (meth)acrylate, 1-50 weight% of polymerizable aromatic ring-containing monomer, and 0.1-20 weight% of hydroxyl group-containing monomer, is characterized in that the (meth)acrylic polymer does not contain carboxyl group-containing monomers as monomer units, the content of solids is 20 weight% or more, and the solvent content is 80 weight% or less.

RESIN FILM WITH ADHESIVE AND OPTICAL LAMINATE USING THE SAME

Disclosed is a resin film with adhesive, which is obtained by forming an adhesive layer on the surface of a resin film. The adhesive layer is excellent in durability and provided with high antistatic properties which hardly change over time. Specifically disclosed is a resin film with adhesive, which is obtained by forming an adhesive layer on at least one side of a resin film such as an optical film or a surface protection film. The adhesive layer is made from a composition containing 0.2-8 parts by weight of an ionic compound (B) having an organic cation, which is in a solid state at room temperature, per 100 parts by weight of an acrylic resin (A) mainly composed of a structural unit derived from a (meth)acrylate represented by the following formula (I). In the formula (I), R1 represents a hydrogen atom or a methyl group; and R2 represents an alkyl or aralkyl group having 1-14 carbon atoms which may be substituted by an alkoxy group having 1-10 carbon atoms.

HYDROPHILIC POLYMERS, PRESSURE SENSITIVE ADHESIVES AND COATINGS

A method for the preparation of gel-free polymers in alcohol, in water, and in solutions of alcohol and water. The polymers produced by the method of the invention are useful as hydrophilic pressure sensitive adhesives, coatings, hydrogels, films, topical compositions, cosmetic compositions, transdermal drug delivery systems, and carrier for a mucus membrane drug delivery systems.

AQUEOUS-BASED ADHESIVE FOR BONDING LOW SURFACE ENERGY SUBSTRATES

The present invention relates to a 2-part adhesive formulation comprising, in the first part, water, a surfactant, and a protected alkylborane complex, and an acrylic monomer and a trialkylborane-displacing initiator in the second part. The formulation can be applied to a low surface energy substrate to make an effective adhesive without the aid of any surface pretreatment. The adhesive formulation can also be prepared by combining the complex with a mixture of the water, the surfactant, the monomer, as well as other additives and thixotropes, and applying the combination to the low surface energy substrate.

PRESSURE-SENSITIVE ADHESIVE FOR APPLYING OPTICALLY FUNCTIONAL FILM, OPTICALLY FUNCTIONAL FILM AND PRODUCTION PROCESS FOR THE SAME

Provided is a pressure-sensitive adhesive for an optically functional film which can carry out adhesion with a good durability in adhesion of an optically functional film such as adhesion of a polarizing plate, particularly a polarizing plate integrated with a viewing angle expanding film and the like with a liquid crystal cell, adhesion of a polarizing plate with a retardation film, adhesion of a retardation film with a retardation film and adhesion of a retardation film with a liquid crystal cell and which has the characteristics that a liquid crystal display obtained therefrom is less liable to cause light leakage even under the environment of high temperature and high humidity and that static electricity is less liable to be produced when peeling off a release film from a pressure-sensitive adhesive layer. The pressure-sensitive adhesive for applying an optically functional film comprises a pressure-sensitive adhesive resin and an antistatic agent, wherein a storage elastic modulus ...

COMPOSITION FOR ADHESIVE AND ADHESIVE FILM, COMPOSITION FOR POWER STORAGE DEVICE, SLURRY FOR POWER STORAGE DEVICE ELECTRODE, POWER STORAGE DEVICE ELECTRODE, SLURRY FOR PROTECTIVE FILM, AND POWER STORAGE DEVICE

Provided are a composition for an adhesive, which has an adhesive characteristic that hardly changes along with a temperature change, and an adhesive film excellent in productivity, molding processability, and adhesive property. Also provided is a composition for an electrical storage device, which can form a layer excellent in adhesiveness with a current collector or a separator, and enables the production of an electrical storage device excellent in charge-discharge characteristic. The composition according to the present invention includes: heterophasic polymer particles (A); and a liquid medium (B), in which the heterophasic polymer particles (A) each have: a repeating unit derived from a conjugated diene; a repeating unit derived from an unsaturated carboxylic acid ester; and a repeating unit derived from an unsaturated carboxylic acid. 1. A composition for an adhesive , comprising:heterophasic polymer particles (A); and a repeating unit derived from a conjugated diene;', 'a repeating unit derived from an unsaturated carboxylic acid ester; and', 'a repeating unit derived from an unsaturated carboxylic acid., 'wherein the heterophasic polymer particles (A) each have, 'a liquid medium (B),'}2. The composition for an adhesive according to claim 1 , wherein claim 1 , when the heterophasic polymer particles (A) are subjected to differential scanning calorimetry (DSC) in conformity to JIS K7121 claim 1 , two or more endothermic peaks in a temperature range of from −100° C. to 0° C. are observed.3. The composition for an adhesive according to claim 1 , wherein the heterophasic polymer particles (A) have a number average particle diameter of from 50 nm to 400 nm.4. The composition for an adhesive according to claim 1 , wherein the heterophasic polymer particles (A) each have a THF insoluble content of 30% or less.5. An adhesive film claim 1 , wherein the adhesive film is produced using the composition for an adhesive of .6. A composition for an electrical storage ...

PRESSURE-SENSITIVE ADHESIVE SHEET

The present invention provides a pressure-sensitive adhesive (PSA) sheet that achieves, in the form having a support substrate, both low initial adhesiveness and strong adhesiveness during use. The PSA sheet provided in this application includes a support substrate and a PSA layer laminated on at least one side of the support substrate. The PSA layer has a thickness of 3 μm or more but less than 100 μm. The support substrate has a thickness of 30 μm or more. The PSA sheet is configured so that a relationship between an elastic modulus Et′ [MPa] of the PSA sheet and a thickness Ts [mm] of the support substrate fulfils the following formula: 0.1 [N·mm] Подробнее

Pressure sensitive adhesive composition for electro-magnetic shielding film and electro-magnetic shielding filter using the same

The present invention relates to an adhesive composition for an electro-magnetic shielding film and an electro-magnetic shielding filter using the same, and more particularly to an adhesive composition for an electromagnetic shielding film comprising: a) an acrylic copolymer of i) (meth)acrylate ester monomers having C1, to C12 alkyl groups and ii) vinylic monomers having hydroxyl groups; and b) a multifunctional isocyanate crosslinking agent. The electro-magnetic shielding filter of the present invention offers good durability because transparentization is performed with an acrylic adhesive composition having no acidic groups, and thus oxidation of copper is prevented.

Adhesive Composition Having Excellent Kisstack

An adhesive composition characterized in that the kisstack, which is defined as the force measured when a sheet coated with the adhesive composition is instantaneously peeled off after being attached, is about 6 N/inch or higher. The composition not only has excellent loop tack but also exhibits high kisstack characteristics, and thus can be widely used for various substrates. 1. An adhesive composition including acrylic emulsion resin particles , and 1 to 45 parts by weight of a water dispersible tackifier based on 100 parts by weight of the acrylic emulsion resin particles ,wherein the acrylic emulsion resin particles are obtained by a reaction between a (meth)acrylic acid ester monomer having a C1-C14 alkyl group, and0.1 to 4.5 parts by weight of a monomer having a carboxyl group, a hydroxy group, or both carboxyl and hydroxy groups, or a mixture of the monomer thereof, 0.5 to 12 parts by weight of a styrene-based monomer, 1 to 30 parts by weight of a vinyl acetate-based monomer, 0.01 to 2 parts by weight of a molecular weight modifier, and 0.01 to 2 parts by weight of a crosslinking agent, based on 100 parts by weight of the (meth)acrylic acid ester monomer.2. The adhesive composition according to claim 1 , wherein the (meth)acrylic acid ester monomer having a C1-C14 alkyl group is at least one selected from the group consisting of methyl(meth)acrylate claim 1 , ethyl (meth)acrylate claim 1 , propyl (meth)acrylate claim 1 , isopropyl (meth)acrylate claim 1 , butyl (meth)acrylate claim 1 , t-butyl (meth)acrylate claim 1 , 2-ethylhexyl (meth)acrylate claim 1 , octyl (meth)acrylate claim 1 , and lauryl (meth)acrylate.3. The adhesive composition according to claim 1 , wherein the monomer having a carboxyl group is at least one selected from the group consisting of maleic anhydride claim 1 , fumaric acid claim 1 , crotonic acid claim 1 , itaconic acid claim 1 , acrylic acid claim 1 , and methacrylic acid.4. The adhesive composition according to claim 1 , wherein the ...

Pressure sensitive adhesive composition for touch panel

Provided are a pressure-sensitive adhesive composition for a touch panel, a conductive film, a touch panel and a pressure-sensitive adhesive film. The exemplary pressure-sensitive adhesive composition for a touch panel, the conductive film or the pressure-sensitive adhesive film has excellent durability and optical properties such as transparency. In addition, such physical properties are stably maintained under severe conditions. Particularly, a pressure-sensitive adhesive layer is attached to a conductor thin film, and thus resistance change of the conductor thin film is effectively inhibited even when the conductor thin film is exposed to the severe conditions. Therefore, the pressure-sensitive adhesive composition may be effectively used to manufacture a touch panel.

MULTIMODAL COPOLYMERS, PRODUCTION OF SAME, AND USE THEREOF IN BULK CONTACT ADHESIVE

Radical copolymerization method comprising the steps of (a) providing a monomer or monomer mixtures having unsaturated CC double bonds; (b) starting the radical (co)polymerization by means of a first addition of an initiator, and then (c) adding at least one amino acid as a regulating substance, wherein the addition of the regulating substance takes place after reaching a conversion of 50% relative to the unsaturated CC double bonds of the monomer or monomer mixture provided in step (a) ...

Photocurable adhesive film for organic electronic device seal, organic electronic device, and method for sealing same

Provided are a photocurable pressure-sensitive adhesive composition including an acrylic polymer, an epoxy resin, and a cationic photopolymerization initiator, an organic electronic device having an encapsulant including a photocured product of the composition using a curable pressure-sensitive adhesive film which is a film-state product including the composition, and a method for manufacturing an organic electronic device using the curable pressure-sensitive adhesive film. Particularly, due to the method including laminating a photocurable pressure-sensitive adhesive film including a curable pressure-sensitive adhesive layer including an acrylic polymer, an epoxy resin, and a cationic photopolymerization initiator to an top substrate, and radiating light to an entire surface of the curable pressure-sensitive adhesive layer to perform photocuring, and laminating the photocured curable pressure-sensitive adhesive layer to a bottom substrate on which an organic light emitting element is formed ...

HARDENED MATERIALS, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF

Use of an adhesive dispersion for film lamination

Beschrieben wird die Verwendung einer Klebstoffdispersion für die Glanzfolienkaschierung, wobei die Klebstoffdispersion mindestens ein in Wasser dispergiertes Polymer enthält, welches gebildet ist durch Emulsionscopolymerisation aus einem Monomergemisch, enthaltend (a) mindestens 40 Gew.% mindestens eines Hauptmonomeren, ausgewählt aus C1 bis C20 Al-kyl(meth)acrylaten, Vinylestern von bis zu 20 C-Atome enthaltenden Carbonsäuren, Vinylaromaten mit bis zu 20 C-Atomen, ethylenisch ungesättigten Nitrilen, Vinylhalogeniden, Vinylethern von 1 bis 10 C Atome enthaltenden Alkoholen, aliphatischen Kohlenwasserstoffen mit 2 bis 8 C Atomen und ein oder zwei Doppelbindungen oder Mischungen dieser Monomeren; (b) mindestens 1 Gew.% mindestens eines C1 bis C20 Hydroxyalkyl(meth)acrylats, (c) mindestens 0,6 Gew.% mindestens eines ethylenisch ungesättigten, radikalisch polymerisierbaren Monomers mit mindestens einer Glycidylgruppe und (d) 0 bis 10 Gew.% mindestens eines Säuremonomers.

NEW LOW-MOLECULAR ONES OH-FUNCTIONAL COPOLYMERS WITH HIGH SIDE CHAIN BYPASS, PROCEDURES FOR YOUR PRODUCTION AS WELL AS YOUR USE

ELECTRICALLY DIRECTIONS OF DETENTION ADHESIVES

BONDING EMULSION FOR FOIL WITH SHIELD EFFECT IN RELATION TO ELECTROMAGNETIC JETS AS WELL AS ITS USE IN A FILTER WITH SHIELD EFFECT IN RELATION TO ELECTROMAGNETIC JETS

AGAIN SOLVABLE ADHESIVE AND AGAIN SOLVABLE ADHESIVE FILM

ADHESIVES ON ACRYLIC POLYMER BASIS

HARDENED MATERIALS, PROCEDURES FOR YOUR PRODUCTION AND YOUR USE

INTERLACED DETENTION ADHESIVE COMPOSITIONS AS WELL AS ON THIS BASING, FOR APPLICATIONS OF HIGH TEMPERATURES USABLE ONE STICKING ARTICLES

POLYCAPROLACTON KLEBEMITTELZUSAMMENSETZUNG

PRESSURE-SENSITIVE STICKING CENTRAL COMPOSITION CONTAINING STYRENE MALEIC ACID COPOLYMERS

Pressure sensitive materials with small amounts of styrene

NON-SELF-ADHERENT COATING MATERIALS

Liquid adhesive coating materials are prepared that protect surfaces, such as medical devices and biological surfaces, including skin and mucous membranes, from pressure, shear, and friction. The liquid coating materials utilize an amphophilic siioxysilane/hydroxyaikyi ester polymer-containing coating material dissolved in a volatile solvent, with or without an antimicrobial agent, where when the polymer coating is formed after solvent evaporation and is folded against itself or placed against another material, the surface of said coating does not adhere, while the bottom of the coating remains attached to the original surface.

PRESSURE SENSITIVE MATERIALS WITH SMALL AMOUNTS OF STYRENE

Polymerizate, made of a) 50-99.98 wt.% of a C1-C12 alkyl(meth)acrylate, b) 0,02-1.8 wt.% of a vinyl aromatic compound, c) 0-10 wt.% of an ethylenically unsaturated acid or an ethylenically unsaturated acid anhydrided and d) 0-40 wt.% of other monomers, wherein the percentages by weight are related to the polymerizate.

High-efficiency noise-blocking acrylic wallpaper primer and preparation method and application thereof

Water-based nitrolacquer-resistant adhesive tape and method for preparing adhesive of adhesive tape

Adhesive tape

General-purpose aluminum plating film composite adhesive for gold and silver paperboard and preparation method thereof

Adhesive and adhesive sheet

Primer and laminate including resin film formed from the primer

Image display device, resin composition and resin cured layer

Water-based adhesive composition , method for manufacturing same, and adhesive film

ADHESIVE INCLUDING PENDANT (METH)ACRYLOYL GROUPS, ARTICLE, AND METHOD

OPTICAL ADHESIVE, OPTICAL FILM WITH ADHESIVE AND IMAGE DISPLAY

점착제 조성물 및 점착 필름

... 본 발명은 편광판의 편광자에 포함되는 요오드와 반응하지 않아, 편광판의 퇴색을 억제할 수 있고, 대전 방지성이 우수한 점착제 조성물 및 그것을 사용한 점착 필름을 제공한다. 점착제 폴리머와, 가교제와, 대전 방지제를 함유하는 점착제 조성물로서, 상기 점착제 폴리머가 (A) 알킬기의 탄소수가 C1∼C14인 (메타)아크릴산알킬에스테르 모노머의 적어도 1종과, 다른 공중합성 비닐 모노머를 함유하는 공중합체 조성물이고, 상기 대전 방지제로서 융점이 25℃∼50℃이고, 온도 25℃에서 고체인 이온성 화합물을 함유하며, 상기 이온성 화합물이 양이온과 음이온으로 이루어지고, 유기 요오드 화합물을 함유하는 것을 특징으로 한다.

Pressure-sensitive adhesive composition for touch panel

Pressure-sensitive adhesive composition, polarizer and liquid crystal display

METHOD FOR MANUFACTURING DEVICE WITH REINFORCING FILM, AND REINFORCING FILM

Acrylic Pressure-sensitive Adhesive Composition with Good Re-workability

ACRYLIC POLYMER-BASED ADHESIVES

THERMAL-CURING TYPE ADHESIVE COMPOSITION AND DISPLAY DEVICE USING SAME

Provided is a thermal-curing type adhesive composition comprising polyfunctional acrylate and a display device including the same. By irradiating UV to a thermal-cured adhesive pattern, adhesion of the adhesive pattern is reduced so a re-work process can be proceeded. COPYRIGHT KIPO 2017 ...

ADHESIVE COMPOSITION FOR TOUCH PANEL HAVING EXCELLENT DURABILITY BY COMPRISING AN EPOXY-BASED SILANE COUPLING AGENT, AN ADHESIVE FILM, AND A TOUCH PANEL

PURPOSE: An adhesive composition for a touch panel is provided to have excellent wettability-adhesion to various objects, workability, and durability, and not to cause excitation, bubbles, curl, etc, if applied to an electrostatic capacity type touch panel. CONSTITUTION: An adhesive composition for touch panel comprises a partially polymerized acrylic resin, a polyfunctional cross linking agent, and an epoxy-based silane coupling agent. The weight average molecular weight of the partially polymerized acrylic resin is 1,000,000 or more, and the polymerization degree is 5-60 %, the partially polymerized acrylic resin is a polymer of a monomer mixture containing a (meth)acrylate ester based monomer, and a crosslinkable monomer. An adhesive film(10) comprises a base film(11), and an adhesive layer(12) containing a cured material of the adhesive composition, formed on both sides or one side of the substrate film. COPYRIGHT KIPO 2012 ...

PRESSURE SENSITIVE ADHESIVES FOR LOW SURFACE ENERGY SUBSTRATES

PRESSURE SENSITIVE ADHESIVE COMPOSITION

Method for manufacturing pressure sensitive adhesive film and optical laminate

The present application relates to a method for manufacturing a pressure-sensitive adhesive film and an optical laminate, and according to one example of the present application, there is provided a method for manufacturing a pressure-sensitive adhesive film comprising steps of applying a pressure-sensitive adhesive composition comprising an isocyanate compound, a metal compound and an acrylic polymer on at least one side of a base layer; and drying it at a temperature of 100 DEG C or higher to form a pressure-sensitive adhesive layer.

Method for manufacturing electronic device

A method for manufacturing an electronic device of the present invention at least includes: a step (1) of preparing a structure body (100), the structure body (100) including: an adhesive film (50) which includes a base layer (10), an adhesive resin layer (A) disposed on a first surface (10A) side of the base layer (10) and configured to temporarily fix an electronic component (70), and an adhesive resin layer (B) disposed on a second surface (10B) side of the base layer (10) and whose adhesive force is reduced by an external stimulus; the electronic component (70) attached to the adhesive resin layer (A) of the adhesive film (50); and a support substrate (80) attached to the adhesive resin layer (B) of the adhesive film (50); a step (2) selected from at least one of a step (2-1) of reducing a water content in the adhesive film (50) and a step (2-2) of reducing a water content in the structure body (100); and a step (3) of sealing the electronic component (70) with a sealing material (60 ...

Adhesive composition, and adhesive film, surface-protective film using the same

The present invention provides an adhesive composition, and an adhesive film and a surface protecting film using the same. The adhesive composition has an excellent adhesion property, and can achieve both an antistatic property and an anti-contamination property at the same time. The adhesive composition contains an acrylic polymer having a alkyl (meth)acrylic acid ester as the main component, an antistatic agent, a cross-linker, and a polyether modified siloxane, wherein the polyether modified siloxane has been purified to deodorize. The polyether modified siloxane is contained in a ratio of 0.01 to 1.0 parts by weight based on 100 parts by weight of an acrylic polymer.

Easily-disassemblable adhesive composition and easily-disassemblable adhesive tape

Pressure-sensitive adhesive functional film and display device

The present invention provides a transparent pressure-sensitive adhesive functional film in which interference fringes hardly occur and corrosion resistance is excellent. The invention relates to a pressure-sensitive adhesive functional film including a transparent substrate, a functional layer (hard coat layer and/or anti-reflection layer) on one surface of the transparent substrate, and a pressure-sensitive adhesive layer on the other surface of the transparent substrate, wherein an amount of (meth)acrylic acid ion extracted from the pressure-sensitive adhesive functional film under the specific conditions is suitably controlled, and an approximate integral value calculated by using a transmittance curve at a wavelength of 400 to 780 nm is suitably controlled.

Pressure-sensitive adhesive sheet

The present invention provides a pressure-sensitive adhesive sheet excellent in anti-white turbidity and anti-foaming release property under a high-temperature and high-humidity environment and corrosion resistance. The invention provides a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which includes an acrylic polymer (A) and has a gel fraction of 70 to 100 wt %, wherein the acrylic polymer (A) is formed from a component including, as an essential monomer component, methyl methacrylate and a hydroxyl group-containing monomer in an amount of 10 to 40 wt % based on a total amount (100 wt %) of the monomer component, the component forming the acrylic polymer (A) substantially does not contain a carboxyl group-containing monomer.

Dielectric adhesive film for electronic paper display device

A dielectric adhesive film for an electronic paper display device. A lower electrode to which voltage is applied and an image upper electrode coated with charged particles whose colors are changed depending on the applied voltage are attached to the adhesive film. Thickness of the adhesive film is controlled to be uniform and constant, and a resistance value in the thickness direction of the adhesive film, i.e., a resistance value in the direction where an electric field is formed, is controlled without changing adhesive properties and reliability as the thickness of the adhesive film is controlled. Since loss of the applied voltage is minimized and the charged particles are freely driven, driving performance of the display device is excellent although a high voltage is not applied in driving a flexible display device, such as a flexible LED, an organic electro luminescence (EL) element including an electronic paper, and the like.

Epoxy-based composition, ashesive film, dicing die-bonding film and semiconductor device

Provided are an epoxy composition, an adhesive film, a dicing die bonding film and a semiconductor device using the same. Specifically, the epoxy composition and a use thereof are provided, wherein the epoxy composition has a gel content of 5˜20%, measured under certain conditions. The epoxy composition according to the present invention, as an adhesive agent, shows excellent elastic properties, when prepared to have a low glass transition temperature, exhibiting good adhesion at high temperature and having minimal occurrence of burrs during processing. According to the present invention, it is therefore possible to prevent defects owing to die cut shift, during a wire bonding or molding process at high temperature, and obtain a highly reliable semiconductor device owing to the excellent adhesiveness and workability of the adhesive agent.

Pressure-sensitive adhesive sheet and use thereof

The present invention provides a PSA sheet combining higher levels of antistaticity, anchoring and less contaminating nature. The PSA sheet comprises a substrate film formed from a resin material, a pressure-sensitive adhesive layer provided on a first face thereof, and an antistatic layer provided between the first face and the pressure-sensitive adhesive layer. The antistatic layer comprises an antistatic ingredient ASu. The pressure-sensitive adhesive layer comprises an acrylic polymer as a base polymer, and an ionic compound as an antistatic ingredient ASp.

Polarizing film with adhesive layer and image display apparatus

A pressure-sensitive adhesive layer-attached polarizing film of the present invention includes a polarizing film and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film includes a polarizer with a thickness of 10 μm or less and a transparent protective film or films provided on one or both sides of the polarizer, and the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an ionic compound (B). The pressure-sensitive adhesive layer-attached polarizing film has an antistatic function and exhibits durability.

Adhesive sheet and electronic device

An object to be achieved by the present invention is to provide an industrially useful adhesive sheet that can be used to bond various adherends and has excellent peel adhesion, excellent push strength, and excellent holding power under static load. The object of the present invention can be achieved by an adhesive sheet having, on one side or both side of a substrate, an adhesive layer (A) having a tensile strength of 6 N/cm 2 or more as determined from a stress-strain curve (a so-called S-S curve) at a strain of 100%.

Optically clear adhesives for durable plastic bonding

The present invention is a copolymer of a monomer mixture including about 25 to about 80 parts by mass of an alkyl (meth)acrylate, approximately 15 to approximately 50 parts by mass of a hydroxyl group-containing monomer, and approximately 5 to approximately 25 parts by mass of a macromer having a glass transition temperature (Tg) of approximately 50° C. or higher. The copolymer contains substantially no acidic groups.

Adhesive composition containing ionic antistatic agent

An adhesive composition includes an acryl copolymer, a cross-linking agent, and an ionic antistatic agent represented by Formula 1, thereby exhibiting excellent antistatic property, as well as, significantly improved durability, maintaining excellent adhesiveness under severe conditions such as high temperature and high humidity atmospheres, and securing sufficient antistatic property even if used in a small amount.

OPTICAL LAYERED BODY AND METHOD FOR MANUFACTURING SAME

An optical layered body including a substrate and an adhesive layer formed on the substrate, wherein the adhesive layer includes an acrylic adhesive composition containing an acrylic polymer, and a light scattering particle, the acrylic polymer is a copolymer of a copolymerizing component [I] which contains 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to by weight of a hydroxyl group-containing monomer (a2), the acrylic polymer has a weight-average molecular weight of 200,000 or less, the light scattering particle has a volume concentration V relative to the adhesive layer of 3% to 35%, the acrylic adhesive composition has a refractive index of 1.52 to 1.67, and the light scattering particle has a refractive index of 1.4 to 1.49. 1. An optical layered body comprising a substrate and an adhesive layer formed on the substrate , whereinthe adhesive layer includes an acrylic adhesive composition containing an acrylic polymer, and a light scattering particle,the acrylic polymer is a copolymer of a copolymerizing component [I] which contains 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to 60% by weight of a hydroxyl group-containing monomer (a2),the acrylic polymer has a weight-average molecular weight of 200,000 or less,the light scattering particle has a volume concentration V relative to the adhesive layer of 3% to 35%,the acrylic adhesive composition has a refractive index of 1.52 to 1.67, andthe light scattering particle has a refractive index of 1.4 to 1.49.2. The optical layered body according to claim 1 , wherein the light scattering particle is a silicone particle or an acryl particle.3. The optical layered body according to claim 1 , wherein at least ¼ in volume of the light scattering particle contained in the adhesive layer has a particle diameter of 0.1 μm to 1 μm.4. The optical layered body according to claim 1 , whereinthe light scattering particle has an average ...

Pressure Sensitive Adhesive Compositions and Methods for Preparing Same

The present invention relates to a pressure sensitive adhesive composition comprising the emulsion polymerization product of a monomer mixture, the monomer mixture comprising: (a) more than 38 wt.-% of at least one alkyl ester of (meth)acrylic acid; (b) more than 10 wt.-% to less than 20 wt:-% of at least one vinyl aromatic monomer; (c) 0.1 to 8 wt.-% of at least one hydroxyl functional (meth)acrylate monomer; (d) 0.05 to 3 wt.-% of least one ureido substituted ethylenically unsaturated monomer; (e) 0 to 6 wt.-% at least one ethylenically unsaturated carboxylic acid; (f) 0 to 25 wt.-% at least one ethylenically unsaturated monomer different from monomers (a) to (e), wherein the amounts of monomers (a) to (f) add up to 100 wt-% based on the total weight of the monomer mixture.

ACRYLIC ADHESIVES HAVING CHEMICAL RESISTANCE

This disclosure is directed at specific acrylic PSA compositions that are capable of resisting a broad array of solvents. Acrylic PSA's primarily derived from C?1#191-C?4#191 acrylate monomers and functional acrylates exhibit a strong resistance to a wide array of solvents, including both polar and non-polar solvents. 1. A composition comprising an acrylic pressure sensitive adhesive derived from the reaction product of:(a) about 20 percent by weight to about 60 percent by weight of a methyl acrylate,(b) about 40 percent by weight to about 80 percent by weight of a monomer comprising ethyl acrylate, propyl acrylate, butyl acrylate, or combinations thereof,(c) about 0.2 percent by weight to about 5 percent by weight of a functional acrylate monomer, and(d) a crosslinking agent.2. A composition according to claim 1 , wherein the functional acrylate monomer comprises hydroxyethyl (meth)acrylate claim 1 , hydroxypropyl (meth)acrylate claim 1 , hydroxybutyl (meth)acrylate claim 1 , isocyanatoethyl (meth)acrylate claim 1 , (meth)acrylic acid claim 1 , glycidyl (meth)acrylate or combinations thereof.3. A composition according to claim 1 , wherein the crosslinking agent comprises compounds containing functional groups selected from hydoxy claim 1 , carboxylic claim 1 , isocyanate claim 1 , epoxy and azilidine.4. A composition according to claim 1 , wherein the acrylic pressure sensitive adhesive exhibits a resistance to polar and non-polar solvents as demonstrated by a solvent swell ratio of 1.8 or less after immersion in a 1:1 water and isopropyl alcohol mixture in accordance with the Swelling Ratio Test and solvent swell ratio of 1.5 or less after immersion in oleic acid in accordance with Swelling Ratio Test.5. A composition according to claim 1 , wherein the acrylic pressure sensitive adhesive exhibits a peel adhesion strength of 0.7 N/mm or greater in accordance with the Peel Adhesion Test.6. An article comprising an acrylic pressure sensitive adhesive assembly having ...

ACRYLIC ADHESIVE AND PROTECTIVE FILM INCLUDING THE SAME

Disclosed is an acrylic adhesive, including an acrylic polymer obtained by polymerizing a mixture of about 120 parts by weight to about 250 parts by weight of acrylic monomers with about 0.1 parts by weight to about 1 parts by weight of an azo initiator, about 0.5 parts by weight to about 1 parts by weight of a filler, about 1.5 parts by weight to about 2.5 parts by weight of a crosslinking agent, and about 0.5 parts by weight to 1 parts by weight of an anti-static agent. 1. An acrylic adhesive composition , comprising:an acrylic polymer obtained by polymerizing a mixture of about 120 parts by weight to about 250 parts by weight of acrylic monomers with about 0.1 parts by weight to about 1 parts by weight of an azo initiator, about 0.5 parts by weight to about 1 parts by weight of a filler, about 1.5 parts by weight to about 2.5 parts by weight of a crosslinking agent, and about 0.5 parts by weight to about 1 parts by weight of an anti-static agent.2. The acrylic adhesive composition as claimed in claim 1 , wherein the acrylic monomers include 2-ethylhexylacrylate and 2-(2-ethoxyethoxy)ethyl acrylate.3. The acrylic adhesive composition as claimed in claim 2 , wherein the acrylic monomers include about 100 parts by weight of the 2-ethylhexylacrylate and about 5 parts by weight to about 45 parts by weight of the 2-(2-ethoxyethoxy)ethyl acrylate.4. The acrylic adhesive composition as claimed in claim 2 , wherein the acrylic monomers further include butylacrylate.5. The acrylic adhesive composition as claimed in claim 4 , wherein the acrylic monomers include about 10 parts by weight to about 60 parts by weight of the butylacrylate.6. The acrylic adhesive composition as claimed in claim 4 , wherein the acrylic monomers further include hydroxyethylacrylate.7. The acrylic adhesive composition as claimed in claim 6 , wherein the acrylic monomers include about 4 parts by weight to about 45 parts by weight of the hydroxyethylacrylate.8. The acrylic adhesive composition as ...

Adhesive composition, cured product, and bonded body

An adhesive composition which is excellent in adhesion to various hardly adhesive materials such as polyethylene terephthalate, polyethylene, polypropylene, modified polyphenylene ether, polyphenylene sulfide, and a cycloolefin polymer. Further, an adhesive composition containing the following components (A) to (C) may be described Component (A): (Meth) acrylic triblock elastomer having a weight average molecular weight of 80,000 or more, Component (B): (Meth) acrylate monomer having no hydroxyl group and having a phenoxy group, and Component (C): Radical initiator.

OPTICAL ADHESIVE LAYER, MANUFACTURING METHOD OF OPTICAL ADHESIVE LAYER, OPTICAL FILM WITH ADHESIVE LAYER, AND IMAGE DISPLAY DEVICE

The purpose of the present invention is to provide an optical pressure-sensitive adhesive layer which is excellent in durability such that foaming, peeling, etc. does not occur under heating/humidification conditions on an adherend and does not cause light leakage even in a narrow frame panel; a pressure-sensitive adhesive layer attached optical film, having the aforementioned optical pressure-sensitive adhesive layer on at least one surface of the optical film; and further a liquid crystal display device using the aforementioned pressure-sensitive adhesive layer attached optical film. 1. An optical pressure-sensitive adhesive layer which is formed from a pressure-sensitive adhesive composition containing a (meth)acrylic polymer, wherein the optical pressure-sensitive adhesive layer has a gel fraction exceeding 90% and a weight average molecular weight (Mw) of 350,000 or more of a sol component. 1. An optical pressure-sensitive adhesive layer which is formed from a pressure-sensitive adhesive composition containing a (meth)acrylic polymer ,wherein the optical pressure-sensitive adhesive layer has a gel fraction exceeding 90% and a weight average molecular weight (Mw) of 350.000 or more of a sol component.2. The optical pressure-sensitive adhesive layer according to claim 1 , wherein a polydispersity (weight average molecular weight (Mw)/number average molecular weight (Mn)) of the (meth)acrylic polymer is 3.0 or less.3. The optical pressure-sensitive adhesive layer according to claim 1 , wherein the pressure-sensitive adhesive composition contains a peroxide-based crosslinking agent.4. The optical pressure-sensitive adhesive layer according to claim 3 , wherein the peroxide-based crosslinking agent is an amount of 0.01 to 3 parts by weight per 100 parts by weight of the (meth)acrylic polymer.5. The optical pressure-sensitive adhesive layer according to claim 1 , wherein the (meth)acrylic polymer contains 0.01 to 7% by weight of a hydroxyl group-containing monomer as ...

Adhesive sheet for temporary attachment and method for producing semiconductor device using the same

The present disclosure relates to an adhesive sheet for temporary attachment which is excellent in heat resistance and can realize sufficient adhesive strength even when being subjected to a high temperature process during the semiconductor production process, and can exhibit a sufficient reduction in adhesive strength due to photocuring in a peeling step, and a method for producing a semiconductor device using the same.

Optical Laminate

The present application relates to an optical laminate. The present application can provide an optical laminate which can have stable durability even at a high temperature, particularly an ultra-high temperature of about 100° C. or higher, and that base material adhesiveness is excellent, other physical properties required for the optical laminate are also excellent, and even in the case of being disposed adjacent to the electrode, corrosion of the relevant electrode or the like is not induced. 1. An optical laminate comprisingan optical film; anda pressure-sensitive adhesive layer formed on a side of the optical film, a first alkyl (meth)acrylate unit having an alkyl group with 4 or more carbon atoms,', 'a second alkyl (meth)acrylate unit having an alkyl group with 3 or less carbon atoms,', 'an aromatic group-containing monomer unit and', 'a hydroxyl group-containing monomer unit, and, 'wherein the pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive polymer including'}wherein the pressure-sensitive adhesive polymer includes the first alkyl (meth)acrylate unit in an amount of 45 wt % to 70 wt %, and 30 to 65 parts by weight of the second alkyl (meth)acrylate unit, 20 to 45 parts by weight of the aromatic group-containing monomer unit, and 4 to 8 parts by weight of the hydroxyl group-containing monomer unit, relative to 100 parts by weight of the first alkyl (meth) acrylate unit.2. The optical laminate according to claim 1 , wherein the pressure-sensitive adhesive layer has a storage modulus at room temperature of 0.07 MPa or more.3. The optical laminate according to claim 1 , wherein the pressure-sensitive adhesive layer has a gel fraction of 80 wt % or more according to Equation 1 below:{'br': None, 'i': 'B/A×', 'Gel fraction=100 \u2003\u2003[Equation 1]'}wherein, A is a mass (unit: g) of the pressure-sensitive adhesive layer before immersing the pressure-sensitive adhesive layer in ethyl acetate, and B represents the dry mass (unit: g) of an ...

ANTISTATIC ADHESIVE COMPOSITION AND POLARIZING PLATE MANUFACTURED USING SAME

An antistatic adhesive composition includes a polyalkyleneglycol compound having one or more carboxyl group or thiol group in a molecule, an acryl copolymer, a cross-linking agent, and an antistatic agent. The antistatic composition exhibits excellent antistatic property, as well as significantly improving adhesiveness, thus to exhibit superior durability even at a high temperature. A polarizing plate fabricated using the antistatic composition is also provided. 1. An adhesive composition , comprising:a polyalkyleneglycol compound having at one of a carboxyl group or a thiol group in a molecule;an acryl copolymer;a cross-linking agent; andan antistatic agent.4. The adhesive composition according to claim 2 , wherein the polyalkyleneglycol compound is polyethyleneglycol bis(carboxymethyl) ether having a weight average molecular weight ranging from 100 to 1 claim 2 ,000.5. The adhesive composition according to claim 2 , wherein the polyalkyleneglycol compound is any one selected from the group consisting of polyethyleneglycol methyletherthiol having a weight average molecular weight ranging from 500 to 1 claim 2 ,200 claim 2 , polyethyleneglycol dithiol having a weight average molecular weight ranging from 500 to 1 claim 2 ,500 claim 2 , and a mixture thereof.6. The adhesive composition according to claim 1 , wherein the polyalkyleneglycol compound is included in an amount of 0.1 to 10 parts by weight relative to 100 parts by weight of the acryl copolymer based on solid content.7. The adhesive composition according to claim 1 , wherein the antistatic agent is at least one of bis(fluorosulfonyl)imide potassium (KN(FSO)) or bis(fluorosulfonyl)imide sodium (NaN(FSO)).8. An adhesive sheet comprising an adhesive layer formed of the adhesive composition according to .9. A polarizing plate comprising an adhesive layer formed of the adhesive composition according to on at least one surface thereof.10. The polarizing plate according to claim 9 , further comprising a polarizer ...

Conductive laminate, and touch panel comprising same

The present invention is relates to conductive laminate. The conductive laminate is applied to a touch panel or touch screen, thereby exhibiting excellent durability, and a pressure-sensitive adhesive layer included in the conductive laminate may prevent a change in resistance of a conductive layer, and effectively inhibit lift-off or peeling, or generation of bubbles at a pressure-sensitive adhesive interface. As a result, performances of the touch panel or touch screen including the conductive laminate may be stably maintained for a long time.

MAGNETIC DISC DRIVE, HELIUM GAS FILLED CONTAINER, AND APPARATUS

A magnetic disk drive includes a base having an opening, a cover configured to close the opening of the base, and a pressure-sensitive adhesive sheet configured to seal a gap between the base and the cover. The pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer, and a substrate layer configured to support the pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer has a storage modulus of 250 kPa or less at 23° C. The substrate layer has an elastic modulus of 1,680 N/cm to 3,000 N/cm. The pressure-sensitive adhesive sheet shows a deviation amount less than 1.0 mm, the amount being the deviation amount of the pressure-sensitive adhesive sheet per 250 gf/cmof the sheet in a holding ability test at 80° C. after one hour from a time when the holding ability test is started. Helium gas is accommodated in a cavity defined by the base and the cover. 2. The magnetic disk drive according to claim 1 , wherein the helium gas accommodated in the cavity is filled at a pressure of 3 claim 1 ,000 Pa.3. The magnetic disk drive according to claim 2 , wherein the pressure-sensitive adhesive sheet seals the gap between the base and the cover such that a proportion of the helium gas accommodated in the cavity which leaks from the inner area to a 1 Pa environment is less than 1×10Pa·m/s.4. The magnetic disk drive according to claim 1 , wherein the at least one sidewall of the base or the cover comprises at least one through-hole claim 1 , and the pressure-sensitive adhesive sheet seals the at least one through-hole.5. The magnetic disk drive according to claim 1 , wherein a surface of the base and the cover has an arithmetic average roughness (Ra) of 0.5 μm or less and having a ten-point average roughness (Rz) of 7 μm or less.6. The magnetic disk drive according to claim 1 , wherein one or more of the base or the cover comprises one or more of a metal claim 1 , an alloy claim 1 , a metal-covered surface claim 1 , or an alloy-covered surface.7 ...

ADHESIVE TAPE AND ARTICLE

A problem to be solved by the present invention is to provide an adhesive tape capable of maintaining excellent adhesive strength for a long time even when sweat, sebum, an alcohol, or the like adheres thereto. The present invention relates to an adhesive tape having an adhesive layer containing an acrylic adhesive, the acrylic adhesive including an acrylic copolymer, in which the acrylic copolymer contains, as constituent components, (A) 5 to 20% by mass of a carboxyl group-containing monomer, (B) 0.01 to 1% by mass of a hydroxyl group-containing monomer, and (C) one or two or more selected from the group consisting of other alkyl (meth)acrylate monomers and alicyclic monomers, in which the average number of carbon atoms of saturated hydrocarbon groups included in the monomers (C) is 4 or less. 1. An adhesive tape having an adhesive layer comprising an acrylic adhesive , the acrylic adhesive including an acrylic copolymer ,wherein the acrylic copolymer contains, as constituent components,(A) 5 to 20% by mass of a carboxyl group-containing monomer,(B) 0.01 to 1% by mass of a hydroxyl group-containing monomer, and(C) one or two or more selected from the group consisting of other alkyl (meth)acrylate monomers and alicyclic monomers,wherein the average number of carbon atoms of saturated hydrocarbon groups included in the monomers (C) is 4 or less.2. The adhesive tape according to claim 1 , wherein the acrylic copolymer has a weight average molecular weight of 400 claim 1 ,000 or more.3. The adhesive tape according to claim 1 , wherein the adhesive layer has a thickness of 5 to 200 μm.4. The adhesive tape according to claim 1 , wherein a value of initial adhesive strength is in a range of 5 N/5 mm to 20 N/5 mm.5. The adhesive tape according to claim 1 , wherein adhesive strength after being left to stand in an environment of 60° C. and 90% RH for 3 days in a state of being immersed in an oleic acid solution having a concentration of 99% by mass is 3.5 N/5 mm or more. ...

Flame retardant pressure-sensitive tape

Pressure-sensitive adhesive formulations based on acrylic or rubber adhesives are provided in combination with an aluminum phosphorous salt intumescent flame retardant and a nitrogen containing flame retardant which can act as a blowing agent through thermal decomposition. These flame retardant additives can be incorporated into the adhesive in levels of 10 to 30 percent by weight. These formulations are then placed on a polymeric flame retardant substrate in either a single-sided or double-sided form.

Optical member, pressure-sensitive adhesive composition and liquid crystal display

Provided are an optical member, a pressure-sensitive adhesive composition, and an LCD. The optical member may have excellent endurance reliability even when a pressure-sensitive adhesive layer is formed to have a thickness of 20 μm or less.

Pressure-sensitive adhesive composition

A pressure-sensitive adhesive composition, a protective film, an optical element and a display device are provided. The pressure-sensitive adhesive composition has excellent storage stability, exhibits proper low-speed and high-speed peel strengths after formation of a cross-linked structure, and also has an excellent balance between the low-speed and high-speed peel strengths. Therefore, when the pressure-sensitive adhesive composition is applied to a protective film, the pressure-sensitive adhesive composition can have an excellent protective effect, and can also be advantageous to perform a high-speed process since the pressure-sensitive adhesive composition is easily peeled during a high-speed peeling process. In the high-speed peeling process, the pressure-sensitive adhesive composition can exhibit excellent antistatic characteristics.

Laminate sheet

Provided is a laminate sheet comprising a PSA layer as well as first and second films laminated on first and second faces of the PSA layer. The first film is a release film having a face A in contact with the PSA layer, with the face A being a release face. The face A of the first film has a maximum protrusion height Rp 1A of less than 50 nm. The first and second films have a combined thickness T SUM of 80 μm or greater.

UV CURABLE CONDUCTIVE ADHESIVE

A composition of matter includes an ultraviolet (UV) and thermally curable, non-epoxy acrylic adhesive having a concentration in the range of 5 to 30 weight percent of the composition and conductive metal particles having a concentration in the range of 70 to 95 weight percent of the composition. 1. A composition of matter , comprising:an ultraviolet (UV) and thermally curable, non-epoxy acrylic adhesive having a concentration in the range of 5 to 30 weight percent of the composition; andconductive metal particles in the range of 70 to 95 weight percent of the composition.2. The composition of matter of claim 1 , wherein the conductive metal particles comprises one selected from the group consisting of: silver claim 1 , copper claim 1 , gold claim 1 , titanium claim 1 , and alloys of silver claim 1 , copper claim 1 , titanium claim 1 , and gold.3. The composition of matter of claim 1 , wherein the UV and thermally curable claim 1 , non-epoxy acrylic adhesive has a concentration of 20 percent of the composition and the conductive metal particles has a concentration of 80 percent of the composition.4. The composition of matter of claim 1 , wherein the composition of matter has a viscosity in the range of 12 claim 1 ,000 to 18 claim 1 ,000 centipoise.5. The composition of matter of claim 1 , wherein the composition of matter has a hardness in the range of 85 to 95 on the Shore D hardness scale.6. The composition of matter of claim 1 , wherein the composition of matter has a viscosity in the range of 72 claim 1 ,000 to 78 claim 1 ,000 centipoise.7. The composition of matter of claim 1 , wherein the acrylic adhesive includes an acrylate oligomer claim 1 , (hydroxyethyl) methacrylate claim 1 , carboxyethyl acrylate claim 1 , acrylic acid claim 1 , a photoinitiator claim 1 , and a thermal catalyst.8. The composition of matter of claim 1 , wherein the metal particles comprise metal flakes having a randomized geometry of interlocking and stacking features.9. A composition of ...

Aqueous adhesive compositions

A latex emulsion that includes an aqueous carrier liquid and a latex copolymer formed from reactants comprising butyl methacrylate, wherein the reactants comprise at least 20 wt. % a vinyl monomer, based on the total weight of ethylenically unsaturated monomers in the latex copolymer. A homopolymer formed from the vinyl monomer preferably exhibits a glass transition temperature of between about −10° C. and about 30° C. A coating formed from the latex emulsion preferably exhibits a dry adhesion of greater than about 4 pounds per linear inch when applied between a thermoplastic polyolefin roofing membrane and a plywood roofing substrate at an average coat weight of about 6 lbs/100 ft 2 and subjected to 180° peel testing according to ASTM D903 with a 2-inch per minute pull rate. The latex emulsion may include a second latex copolymer or stage, and may be used as part of an aqueous adhesive composition.

ADHESIVE COMPOSITION AND POLARIZING PLATE COMPRISING SAME

The present invention provides an adhesive composition comprising a tertiary amine group-containing acrylic copolymer and a sulfonate group-containing acrylic copolymer, a polarizing plate and a liquid crystal display device comprising the adhesive composition. The adhesive composition of the present invention comprises a tertiary amine group-containing acrylic copolymer and a sulfonate group-containing acrylic copolymer wherein an ionic functional group can be introduced by cross-linking reaction thereof, thereby exhibiting good antistatic properties and excellent durability. 1. An adhesive composition comprising a tertiary amine group-containing acrylic copolymer and a sulfonate group-containing acrylic copolymer.2. The adhesive composition of claim 1 , wherein the tertiary amine group-containing acrylic copolymer is obtained by copolymerization of a (meth)acrylate monomer and a monomer simultaneously containing an unsaturated double bond and a tertiary amine group within the molecule.3. The adhesive composition of claim 2 , wherein the monomer simultaneously containing an unsaturated double bond and a tertiary amine group within the molecule is a (meth)acrylate containing a tertiary amine group.4. The adhesive composition of claim 2 , wherein the monomer simultaneously containing an unsaturated double bond and a tertiary amine group within the molecule is present in an amount of 1 to 20 wt % based on 100 wt % of the tertiary amine group-containing acrylic copolymer.6. The adhesive composition of claim 1 , wherein the sulfonate group-containing acrylic copolymer is obtained by copolymerization of a (meth)acrylate monomer and a monomer simultaneously containing an unsaturated double bond and a sulfonate group within the molecule.7. The adhesive composition of claim 6 , wherein the monomer simultaneously containing an unsaturated double bond and a sulfonate group within the molecule is a (meth)acrylate containing a sulfonate group.8. The adhesive composition of ...

RESIN COMPOSITION, ADHESIVE MEMBER, AND DISPLAY DEVICE INCLUDING THE SAME

A resin composition including at least one of a monofunctional (meth)acrylate having an imide ring structure or a monomer having a 2-pyrrolidone skeleton and a radical curable group in an amount of about 0.1 weight percent to about 5 weight percent based on the total weight of the resin composition, wherein the resin composition has a viscosity of about 5 millipascal seconds to less than about 50 millipascal seconds at 25° C., and wherein a glass transition temperature of the resin composition after being cured satisfies a value of about −50° C. to less than about 0° C. 1. A resin composition comprising:at least one of a monofunctional (meth)acrylate having an imide ring structure or a monomer having a 2-pyrrolidone skeleton and a radical curable group in an amount of about 0.1 weight percent to about 5 weight percent based on the total weight of the resin composition,wherein the resin composition has a viscosity of about 5 millipascal seconds to less than about 50 millipascal seconds at 25° C., andwherein a glass transition temperature of the resin composition after being cured is about −50° C. to less than about 0° C.2. The resin composition of claim 1 , wherein a 180° peel strength of the resin composition after being cured on glass or a polyimide film is about 1000 gram-force per 25 millimeter.3. The resin composition of claim 1 , further comprising a urethane (meth)acrylate oligomer claim 1 ,wherein the urethane (meth)acrylate oligomer is present in an amount of about 2 weight percent to about 15 weight percent based on the total weight of the resin composition.4. The resin composition of claim 1 , wherein the monofunctional (meth)acrylate of the resin composition comprises:at least one (meth)acrylate monomer having a molecular weight of about 1 to about 500 grams per mole, andat least one (meth)acrylate oligomer having a weight average molecular weight of about 6000 grams per mole or greater.5. The resin composition of claim 1 , further comprising an organic ...

ADHESIVE COMPOSITION AND POLARIZING PLATE COMPRISING SAME

The present invention provides an adhesive composition, comprising an alkali metal carboxylate containing an alkylene glycol group as a cross-linking promoting agent, an acrylic copolymer, and a cross-linking agent, a polarizing plate and a liquid crystal display device comprising the adhesive composition. The adhesive composition according to the present invention has the great solubility of the cross-linking promoting agent in a solvent for adhesive coating, and can shorten a curing period to increase productivity and can inhibit the increase of peeling strength in a release film over time. 1. An adhesive composition , comprising an alkali metal carboxylate containing an alkylene glycol group as a cross-linking promoting agent , an acrylic copolymer , and a cross-linking agent.3. The adhesive composition of claim 2 , wherein R is Calkyl;n is an integer of 1 to 3; and{'sup': +', '+', '+', '+, 'M is Li, Na, K or Cs.'}5. The adhesive composition of claim 1 , wherein the alkali metal carboxylate containing an alkylene glycol group is present in an amount of 0.001 to 0.3 parts by weight based on 100 parts by weight of the acrylic copolymer.6. A polarizing plate claim 1 , including an adhesive layer comprising the adhesive composition of .7. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell.8. A polarizing plate claim 2 , including an adhesive layer comprising the adhesive composition of .9. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell.10. A polarizing plate claim 3 , including an adhesive layer comprising the adhesive composition of .11. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell.12. A polarizing plate claim 4 , including an adhesive layer comprising the adhesive composition of .13. A liquid crystal display device having the polarizing plate of on at least one side of a liquid ...

Resistant Aqueous Polymer Dispersion for Adhesive Applications

The present invention relates to an aqueous polymer dispersion suitable for use as a pressure sensitive adhesive (PSA). The aqueous polymer dispersion may be capable of a high level of performance relative to other aqueous polymer dispersions by achieving an overall balance of adhesive properties, i.e. high tack, high peel strength, and high shear strength. Without limitation, the aqueous polymer dispersion may be used for tapes, tiles, panels, slates, and the like. In addition, the invention relates to a method for making the aqueous polymer dispersion. 1. An aqueous polymer dispersion comprising:(A) between 0 wt. % to 2.0 wt. % of at least one unsaturated carboxylic acid;(B) between 0 wt. % to 9.0 wt. % of an acetate ester;(C) between 40.0 wt. % to 55.0 wt. % of at least one acrylate monomer;(D) between 0 wt. % to 1.0 wt. % of at least one hydroxyl functional (meth)acrylic monomer;(E) between 0 wt. % to 1.0 wt. % of at least one formulation stabilizer; anda bimodal particle size distribution, wherein the bimodal particle size distribution contributes to an overall balance of adhesive properties in an aqueous polymer dispersion comprising components (A) through (E).2. The aqueous polymer dispersion of claim 1 , further comprising (F) optionally claim 1 , at least one free radical initiator claim 1 , (G) optionally claim 1 , at least one surfactant claim 1 , and (H) optionally claim 1 , preserving agents and/or biocides.3. The aqueous polymer dispersion of claim 1 , wherein the at least one unsaturated carboxylic acid comprises an unsaturated monocarboxylic acid claim 1 , such as acrylic acid claim 1 , methacrylic acid claim 1 , hydracrylic acid claim 1 , crotonic acrylic acid claim 1 , β-carboxyethyl acrylate claim 1 , vinyl acetic acid claim 1 , and vinyl lactic acid.4. The aqueous polymer dispersion of claim 1 , wherein the acetate ester comprises methyl acetate claim 1 , ethyl acetate claim 1 , isopropyl acetate claim 1 , vinyl acetate claim 1 , ethylhexyl ...

Composition

A composition having excellent adhesiveness to poorly adhesive materials such as polyolefins is provided. The solution is a composition comprising the following (1) to (2): (1) (meth)acrylates containing the following (1-1) to (1-3): (1-1) a (meth)acrylate having a hydroxyl group, (1-2) an alkyl (meth)acrylate, and (1-3) a (meth)acrylate having a cyclic ether skeleton, and (2) an organoboron compound. The content ratio of (1-1), (1-2), and (1-3) is (1-1):(1-2):(1-3)=(10 to 90):(5 to 80):(5 to 80) in mass ratio in 100 parts by mass of (1) (meth)acrylates.

ACTIVE-ENERGY-RAY-CURABLE ADHESIVE COMPOSITION, LAMINATED POLARIZING FILM, METHOD FOR PRODUCING SAME, LAMINATED OPTICAL FILM, AND IMAGE DISPLAY DEVICE

An active-energy-ray-curable adhesive composition comprises at least radical polymerizable compounds. The radical polymerizable compounds comprise a component A having a log Pow of −2 to 2, and a component B having a log Pow more than 7, each of these log Pow values representing an octanol/water distribution coefficient. The component A preferably comprises at least one nitrogen-containing monomer selected from the group consisting of (meth)acrylamide derivatives, amino-group-containing monomers, and nitrogen-containing and heterocycle-containing vinyl monomers. The component B preferably comprises an alkyl (meth)acrylate having 18 to 20 carbon atoms. 1. An active-energy-ray-curable adhesive composition , comprising at least radical polymerizable compounds ,wherein the radical polymerizable compounds comprise a component A having a log Pow of −2 to 2, and a component B having a log Pow more than 7, each of these log Pow values representing an octanol/water distribution coefficient.2. The active-energy-ray-curable adhesive composition according to claim 1 , wherein the component A comprises at least one nitrogen-containing monomer selected from the group consisting of (meth)acrylamide derivatives claim 1 , amino-group-containing monomers claim 1 , and nitrogen-containing and heterocycle-containing vinyl monomers.3. The active-energy-ray-curable adhesive composition according to claim 1 , wherein the component B comprises an alkyl (meth)acrylate having 18 to 20 carbon atoms.4. The active-energy-ray-curable adhesive composition according to claim 1 , wherein when a total amount of the radical polymerizable compounds is regarded as 100% by weight claim 1 , a proportion of the component A is 10% or more by weight.5. The active-energy-ray-curable adhesive composition according to claim 1 , wherein when a/the total amount of the radical polymerizable compounds is regarded as 100% by weight claim 1 , a proportion of the component B is 15% or more by weight.6. The active- ...

POLARIZING PLATE FOR LIGHT EMITTING DISPLAY DEVICE AND LIGHT EMITTING DISPLAY DEVICE INCLUDING SAME

Provided are a polarizing plate for a light emitting display device and the light emitting display device including same, the polarizing plate for a light emitting display device having a first adhesive film, a second protective layer, a polarizer, and a first protective layer sequentially laminated therein. The polarizing plate includes a UV absorber; and an as value of the polarizing plate is about −2.0 to about −20.0, and a bs value of the polarizing plate is about 3.0 to about 30.0. 1. A polarizing plate for light emitting displays , comprising a first adhesive film , a second protective layer , a polarizer , and a first protective layer sequentially stacked in the stated order ,wherein the polarizing plate contains a UV absorber, andwherein the polarizing plate has an as value of about −2.0 to −20.0 and a bs value of about 3.0 to about 30.0.2. The polarizing plate for light emitting displays according to claim 1 , wherein the UV absorber is contained in at least one of the first adhesive film claim 1 , the second protective layer claim 1 , and the first protective layer.3. The polarizing plate for light emitting displays according to claim 1 , wherein the polarizing plate has a light transmittance of about 30% or less at a wavelength of 400 nm to 420 nm.4. The polarizing plate for light emitting displays according to claim 1 , wherein the UV absorber is contained in the first adhesive film and is present in an amount of about 0.1 wt % to about 2 wt % in the first adhesive film.5. The polarizing plate for light emitting displays according to claim 1 , wherein the UV absorber has an absorbance of about 0.8 AU to about 1.0 AU claim 1 , as measured at a wavelength of 390 nm in 10 mg/L of chloroform (path 1 cm).8. The polarizing plate for light emitting displays according to claim 1 , wherein the second protective layer comprises at least one of a protective film claim 1 , a protective coating layer claim 1 , and a retardation film.9. The polarizing plate for light ...

Adhesive film and display member including the same

An adhesive film and a display member, the adhesive film being formed of an adhesive composition that includes a monomer mixture comprising a hydroxyl group-containing (meth)acrylate and a comonomer, wherein the adhesive film has a recovery rate of about 40% to about 99%, the recovery rate being determined according to Method A as described herein, and wherein the adhesive film has a bubble generation area of about 0%, the bubble generation area being determined according to Method B as described herein.

ADHESIVE COMPOSITION, ADHESIVE FILM PREPARED FROM THE SAME AND DISPLAY MEMBER INCLUDING THE SAME

An adhesive film has an average slope of about −9.9 to about 0, as measured over a temperature range of about −20° C. to about 80° C. in a graph depicting a temperature-dependent storage modulus distribution of the adhesive film where the x-axis represents temperature (° C.) and the y-axis represents storage modulus (kPa). The adhesive film also has a storage modulus at about 80° C. of about 10 kPa to about 1,000 kPa. 1. An adhesive film having an average slope of −9.9 to 0 , as measured over a temperature range of −20° C. to 80° C. in a graph of storage modulus versus temperature in which the x-axis represents temperature (° C.) and the y-axis represents the storage modulus (kPa) ,the adhesive film having a storage modulus at 80° C. of 10 kPa to 1,000 kPa.2. The adhesive film according to claim 1 ,wherein the adhesive film has a T-peel strength of 200 gf/in to 3,000 gf/in, as measured at 25° C. after the adhesive film having a thickness of 100 μm is transferred to a PET film with a thickness of 50 μm, adhered to a PET film and passed through 2 kg roller.3. The adhesive film according to claim 1 ,wherein the adhesive film has a T-peel strength of 100 gf/in to 2,000 gf/in, as measured at 60° C. after the adhesive film having a thickness of 100 μm is transferred to a PET film with a thickness of 50 μm, adhered to a PET film and passed through 2 kg roller.4. The adhesive film according to claim 1 ,wherein the adhesive film has a T-peel strength of 400 gf/in to 4,000 gf/in, as measured at 25° C. after the adhesive film having a thickness of 100 μm is transferred to a PET film with a thickness of 50 μm, adhered to a corona treated PET film and passed through 2 kg roller.5. The adhesive film according to claim 1 ,wherein the adhesive film has a T-peel strength of 200 gf/in to 2,000 gf/in, as measured at 60° C. after the adhesive film having a thickness of 100 μm is transferred to a PET film with thickness of 50 μm, adhered to a corona treated PET film and passed through 2 ...

Transparent resin layer, pressure-sensitive-adhesive-layer-attached polarizing film, and image display device

A transparent resin layer (A) having a surface resistance of 1.0×10 13 Ω/□ or less is placed more on the viewer side than the most viewer side polarizing film ( 1 ) in an image display device (B). The transparent resin layer (A) can be made from a transparent pressure-sensitive adhesive or a transparent liquid resin. Without degrading the reliability of the most viewer side polarizing film ( 1 ), the transparent resin layer (A) can impart an antistatic function at such a level as not to reduce the sensitivity of a touch panel.

ADHESIVE COMPOSITION AND POLARIZING PLATE COMPRISING SAME

The present invention provides an adhesive composition, comprising an alkali metal carboxylate containing a branched or alicyclic Calkyl group as a cross-linking promoting agent, an acrylic copolymer, and a cross-linking agent, a polarizing plate and a liquid crystal display device comprising the adhesive composition. The adhesive composition according to the present invention has the great solubility of the cross-linking promoting agent in a solvent for adhesive coating, and can shorten a curing period to increase productivity and can inhibit the increase of peeling strength in a release film over time. 1. An adhesive composition , comprising an alkali metal carboxylate containing a branched or alicyclic Calkyl group as a cross-linking promoting agent , an acrylic copolymer , and a cross-linking agent.4. The adhesive composition of claim 1 , wherein the alkali metal carboxylate containing a branched or alicyclic alkyl group is present in an amount of 0.001 to 0.3 parts by weight based on 100 parts by weight of the acrylic copolymer.5. A polarizing plate claim 1 , including an adhesive layer comprising the adhesive composition of .6. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell.7. A polarizing plate claim 2 , including an adhesive layer comprising the adhesive composition of .8. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell.9. A polarizing plate claim 3 , including an adhesive layer comprising the adhesive composition of .10. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell.11. A polarizing plate claim 4 , including an adhesive layer comprising the adhesive composition of .12. A liquid crystal display device having the polarizing plate of on at least one side of a liquid crystal cell. The present invention relates to an adhesive composition and a polarizing plate comprising the same ...

THERMALLY CONDUCTIVE PRESSURE-SENSITIVE ADHESIVE SHEET

Provided is a thermally conductive PSA sheet that comprises a PSA layer comprising a thermally conductive filler. The PSA sheet has a thermal resistance less than 6.0 cm·K/W, and also has an adhesive strength N1 at 30 minutes of standing at 23° C. after applied to a stainless steel plate and an adhesive strength N2 at 23° C. after subjected to 5 minutes of heating at 80° C. after applied to a stainless steel plate, satisfying N2/N1≥2. 1. A thermally conductive pressure-sensitive adhesive sheet that comprises a pressure-sensitive adhesive layer comprising a thermally conductive filler , the pressure-sensitive adhesive sheet having{'sup': '2', 'a thermal resistance less than 6.0 cm·K/W,'}an adhesive strength N1 at 30 minutes of standing at 23° C. after applied to a stainless steel plate, andan adhesive strength N2 at 23° C. after subjected to 5 minutes of heating at 80° C. after applied to a stainless steel plate, wherein N2 is at least two times N1.2. The thermally conductive pressure-sensitive adhesive sheet according to claim 1 , wherein the thermally conductive filler content accounts for 80% by weight or less of the pressure-sensitive adhesive layer.3. The thermally conductive pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer has a thickness Ta and the thermally conductive filler has a mean particle diameter of 0.5 Ta or smaller.4. The thermally conductive pressure-sensitive adhesive sheet according to claim 1 , wherein the adhesive strength N2 is 15 N/20 mm or greater.5. The thermally conductive pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer has a thickness of 55 μm or larger.6. The thermally conductive pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer is formed of a pressure-sensitive adhesive comprising an adhesive strength rise retarder.7. The thermally conductive pressure-sensitive adhesive sheet ...

AQUEOUS POLYMER FORMULATION

Provided is a composition comprising an aqueous medium, and further comprising, dispersed in the aqueous medium: (a) particles (a) that comprise a maleated polyolefin (a), and (b) particles (b) that comprise an acrylic polymer (b), wherein the acrylic polymer (b) comprises, by weight based on the solid weight of the acrylic polymer (b): (i) 0.1% to 10% polymerized units of hydroxyl functional acrylic monomer, (ii) 1% to 20% polymerized units of carboxyl functional monomer, and (iii) 70% to 98.9% polymerized units of one or more additional monomer (iii) selected from the group consisting of acrylic monomers, styrenic monomers, and mixtures thereof, wherein the maleated polyolefin (a) is present in an amount of 1% to 19% by weight based on the sum of the solid weights of maleated polyolefin (a) and acrylic polymer (b). Also provided is a method of binding fibers using the composition. 2. The composition of claim 1 , wherein the maleated polyolefin (a) is maleated polypropylene.3. The composition of claim 1 , wherein the additional monomer (iii) comprises one or more acrylic monomers that have Tg of 0° C. or below4. The composition of claim 1 , wherein the additional monomer (iii) comprises one or more styrenic monomers.5. A method of binding fibers comprising bringing an aqueous binder composition into contact with the fibers claim 1 , and then causing or allowing water to evaporate from the aqueous binder composition claim 1 , wherein the aqueous binder composition is the composition of . Polymers that act to bind fibers together are useful in the textile industry. Such polymers, often called “binders,” may be applied to fibers either in the form of a non-woven mat or in the form of threads that have been woven to form a textile. The presence of such polymers can act to improve the tensile strength of the nonwoven or woven fabric, especially when the fabric is impregnated with a liquid, either with water (i.e., “wet strength”) or with solvent (i.e, “solvent strength ...

ADHESIVE COMPOSITION, ADHESIVE FILM, ADHESIVE OPTICAL FILTER AND DISPLAY DEVICE

The present application relates to an adhesive composition, an adhesive film, an adhesive optical filter and a display device. 2. The adhesive composition of claim 1 , comprising at least one selected from the group consisting of an antistatic agent claim 1 , a crosslinking agent claim 1 , an antioxidant claim 1 , a tin-based catalyst and a coupling agent.3. The adhesive composition of claim 1 , wherein R in the Chemical Formula 1 is a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.4. The adhesive composition of claim 1 , wherein the compound having the functional group represented by Chemical Formula 1 has a molecular weight of 700 g/mol to 750 g/mol.8. The adhesive composition of claim 1 , comprising:the acryl-based adhesive resin in 10 parts by weight to 30 parts by weight;the azo-based metal complex dye in 0.01 parts by weight to 5 parts by weight andthe compound having the functional group represented by Chemical Formula 1 in 0.1 parts by weight to 10 parts by weight.9. An adhesive film comprising the adhesive composition of or a cured material thereof.11. The adhesive film of claim 9 , further comprising a release layer provided on one surface of the adhesive film.12. An adhesive optical filter comprising:{'claim-ref': {'@idref': 'CLM-00009', 'claim 9'}, 'the adhesive film of ; and'}an anti-reflection film provided on one surface of the adhesive film.13. The adhesive optical filter of claim 12 , further comprising a base material between the adhesive film and the anti-reflection film.14. A display device comprising the adhesive optical filter of .15. The display device of claim 14 , wherein the display device is an OLED device including an OLED panel; and the adhesive optical filter provided on one surface of the OLED panel.16. The adhesive film of claim 10 , further comprising a release layer provided on one surface of the adhesive film.17. An adhesive optical filter comprising:{'claim-ref': {'@idref': 'CLM-00010', 'claim 10'}, 'the ...

METHOD OF IMPROVING SHEAR STABILITY OF HIGHLY CONCENTRATED AQUEOUS ADHESIVE POLYMER COMPOSITIONS

Method of improving shear stability of highly concentrated aqueous adhesive polymer compositions comprising a specific adhesive polymer which has been prepared by emulsion polymerization and which is dispersed in the aqueous adhesive composition. Said method comprises treating the aqueous adhesive polymer composition with at least one anion exchange resin. 116.-. (canceled)18. The method according to claim 17 , wherein the adhesive polymer is a pressure-sensitive adhesive polymer and has a glass transition temperature of less than 10° C. measured by differential scanning calorimetry according to ASTM D 3418-08 as the midpoint temperature when evaluating the second heating curve at a heating rate of 20° C./min.19. The method according to claim 17 , wherein the adhesive polymer has a bimodal or a multimodal particle size distribution.20. The method according to claim 19 , wherein a first particle mode has a weight average particle diameter in the range of 50 to 200 nm claim 19 , a second particle mode has a weight average particle diameter in the range of 250 to 1200 nm and the weight average particle diameters of the first and second mode differ by at least 50 nm.21. The method according to claim 17 , wherein the anion exchange resin has a total anion exchange capacity of at least 0.9 eq/L and is used in an amount of more than 1 wt.-% claim 17 , based on the amount of adhesive polymer.22. The method according to claim 17 , wherein the anion exchange resin is selected from the group consisting of copolymers of styrene and divinyl benzene with quaternary ammonium functional groups claim 17 , copolymers of styrene and divinyl benzene with tertiary amine functional groups claim 17 , crosslinked acrylic polymers with quaternary ammonium functional groups and crosslinked acrylic polymers with tertiary amine functional groups.23. The method according to claim 17 , wherein the monomers a) are selected from the group consisting of C1 to C10 alkyl acrylates claim 17 , C1 to ...

Pressure Sensitive Adhesive Compositions and Methods for Preparing Same

A pressure sensitive adhesive composition is described. The pressure sensitive adhesive composition includes a polymerization product of a monomer mixture. The monomer mixture includes the following components: (a) at least one alkyl ester of (meth)acrylic acid or cyclic hydrocarbon acrylates; (b) at least one vinyl ester of a C-Ccarboxylic acid; (c) at least one hydroxyl functional (meth)acrylate monomer, or at least one epoxy functional (meth)acrylate monomer; (d) at least one ureido substituted ethylenically unsaturated monomer; and one or more optional monomer components (e)-(g). The pressure sensitive adhesive composition provides a desirable combination of low and high temperature performance, and good adhesion to both metal and organic polymer surfaces. 1. A pressure sensitive adhesive composition comprising a polymerization product of a monomer mixture , the monomer mixture comprising the following components:(a) one or more alkyl ester of (meth)acrylic acid or cyclic hydrocarbon acrylate, wherein the one or more alkyl ester of (meth) acrylic acid or cyclic hydrocarbon acrylates comprises at least one low Tg monomer that produces a homopolymer having a Tg of less than −20° C., and wherein the sum of all of the one or more alkyl ester of (meth) acrylic acid or cyclic hydrocarbon is more than 30 wt. %;{'sub': 4', '20, '(b) 0.1 to less than 25 wt. % of at least one vinyl ester of C-Ccarboxylic acids;'}(c) 0.1 to 8 wt. % of at least one hydroxyl functional (meth)acrylate monomer, or 0.1 to 10 wt. % of at least one epoxy functional (meth)acrylate monomer;(d) 0.05 to 3 wt. % of least one ureido substituted ethylenically unsaturated monomer;(e) optionally 0 to 6 wt. % at least one ethylenically unsaturated carboxylic acid;(f) optionally 0 to 20 wt. % of at least one vinyl aromatic monomer; and(g) optionally 0 to 25 wt. % of at least one ethylenically unsaturated monomer different from monomers (a) to (f),wherein the wt. % is based on the total weight of the monomer ...

POLARIZING FILM, METHOD FOR PRODUCING SAME, OPTICAL FILM, AND IMAGE DISPLAY DEVICE

A polarizing film, wherein transparent protective films are laid, respectively, on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b), respectively, between both surfaces of a polarizer, and transparent protective films. The adhesive layer (a) on/over one of both the surfaces has a glass transition temperature of −60° C. or higher and lower than 40° C. The adhesive layer (b) on/over the other surface has a glass transition temperature of 40° C. or higher. The adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a). The active-energy-ray-curable adhesive composition (a) comprises, as radical polymerizable compounds, a component A having a logPow of −2 to 2, and a component B having a logPow more than 7, these logPow values being each an octanol/water distribution coefficient. 1. A polarizing film , wherein transparent protective films are laid , respectively , on/over both surfaces of a polarizer to interpose an adhesive layer (a) and an adhesive layer (b) , respectively , between both surfaces of a polarizer , and transparent protective films;the adhesive layer (a) on/over one of both the surfaces has a glass transition temperature of −60° C. or higher and lower than 40° C.;the adhesive layer (b) on/over the other surface has a glass transition temperature of 40° C. or higher;the adhesive layer (a) is a layer formed in the form of a cured product layer yielded by radiating an active energy ray to an active-energy-ray-curable adhesive composition (a); andthe active-energy-ray-curable adhesive composition (a) comprises, as radical polymerizable compounds, a component A having a logPow of −2 to 2, and a component B having a logPow more than 7, these logPow values being each an octanol/water distribution coefficient.2. The polarizing film according to claim 1 , wherein in the active-energy-ray-curable adhesive ...

Pressure-sensitive adhesive composition

The present invention relates to a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition of the present invention exhibits excellent dependability under a high temperature or high humidity condition, and also has excellent stress relaxation property and reworkability when being applied to a polarizing plate, and thus, it can effectively prevent warpage. Accordingly, the pressure-sensitive adhesive composition can be usefully applied for an optical film.

Method for improving adhesion of polyurethane adhesive to polyester based laminate without surface preparation

Disclosed is a composite laminate made from unsaturated polyester resin that can be bonded using polyurethane adhesive without secondary treatment of the composite laminate and with improved bond strength and failure mode. Also disclosed are methods of making such composite laminates.

ADHESIVE FILM FOR POLARIZING PLATE, POLARIZING PLATE AND OPTICAL DISPLAY COMPRISING THE SAME

An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition including a (meth)acrylic copolymer and a cellulose ester binder. The (meth)acrylic copolymer contains an alkyl group, a hydroxyl group, an alicyclic group, and a hetero-alicyclic group. The adhesive film has a modulus at ° C. of about Pa or more. 1. An adhesive film for polarizing plates formed of an adhesive composition comprising: a (meth)acrylic copolymer containing an alkyl group , a hydroxyl group , an alicyclic group , and a hetero-alicyclic group; and a cellulose ester binder , the adhesive film having a modulus at 30° C. of about 100 ,000 Pa or more.3. The adhesive film for polarizing plates according to claim 1 , wherein the adhesive has a creep of about 250 μor more at 85° C.4. The adhesive film for polarizing plates according to claim 1 , wherein the adhesive film has a modulus of about 80 claim 1 ,000 Pa or less at 120° C.5. The adhesive film for polarizing plates according to claim 1 , wherein the (meth)acrylic copolymer is a copolymer of a monomer mixture comprising an alkyl group-containing (meth)acrylic monomer claim 1 , a hydroxyl group-containing (meth)acrylic monomer claim 1 , an alicyclic group-containing (meth)acrylic monomer claim 1 , and a hetero-alicyclic group-containing (meth)acrylic monomer.6. The adhesive film for polarizing plates according to claim 5 , wherein the alicyclic group-containing (meth)acrylic monomer is present in an amount of about 1 mol % to about 30 mol % in the monomer mixture.7. The adhesive film for polarizing plates according to claim 5 , wherein the hetero-alicyclic group-containing (meth)acrylic monomer is present in an amount of about 1 mol % to about 20 mol % in the monomer mixture.8. The adhesive film for polarizing plates according to claim 5 , wherein the alicyclic group-containing (meth)acrylic monomer ...

ADHESION-STRENGTHENING ADDITIVE AND COATING COMPOSITION CONTAINING SAME

The present invention relates to a use of at least one homopolymer or copolymer which is obtainable by polymerizing ethylenically unsaturated monomers and which is composed of at least one structural unit (W) or of at least two structural units (W) and (W) differing from one another, and also optionally of at least one other structural unit (W) differing from (W), (W) and (W), where each structural unit (W) contains not only at least one functional group comprising at least one phosphorus atom, but also at least one functional group reactive towards an isocyanate group, each structural unit (W) has at least one functional group having at least one phosphorus atom, each structural unit (W) has at least one functional group reactive towards an isocyanate group, where none of the structural units (W) comprises phosphorus atoms, and the homopolymer or copolymer contains, relative to the total quantity of the at least one structural unit (W) within the main polymer chain of the homopolymer or copolymer, from 1 to 100 mol % of the structural units (W) or, relative to the total quantity of the at least two structural units (W) and (W) within the main polymer chain of the homopolymer or copolymer, from 1 to 80 mol % of the structural units (W) and from 1 to 80 mol % of the structural units (W), as adhesion-strengthening additive, a coating composition containing this type of homopolymer or copolymer as component (A) and at least one binder as component (B), and also a use of this coating composition as clearcoat, on production lines, for rehabilitation, or for maintenance. 1. A method comprising utilizing as an adhesion-strengthening additive , at least one homopolymer or copolymer obtained by polymerization of ethylenically unsaturated monomers ,{'b': 0', '3', '0, 'which is composed of at least one structural unit (W) and optionally at least one further structural unit (W) different from (W),'}wherein{'b': '0', 'each structural unit (W) both contains at least one ...

Adhesive composition, adhesive film prepared from the same and display member including the same

An adhesive film has an average slope of about −9.9 to about 0, as measured over a temperature range of about −20° C. to about 80° C. in a graph depicting a temperature-dependent storage modulus distribution of the adhesive film where the x-axis represents temperature (° C.) and the y-axis represents storage modulus (kPa). The adhesive film also has a storage modulus at about 80° C. of about 10 kPa to about 1,000 kPa.

ADHESIVE SHEET AND OPTICAL DISPLAY COMPRISING THE SAME

An adhesive sheet and an optical display including the same are provided. An adhesive sheet includes an adhesive film including: a first region; and a second region coplanar with the first region and having a higher modulus than the first region. 1. An adhesive sheet comprising an adhesive film , the adhesive film comprising: a first region; and a second region coplanar with the first region and having a higher modulus than a modulus of the first region.2. The adhesive sheet according to claim 1 , wherein a modulus ratio of the second region to the first region is from about 1.1 to about 12 at each of −20° C. and 25° C.3. The adhesive sheet according to claim 2 , wherein the first region has a modulus of about 0.1 MPa to about 10 MPa at −20° C.4. The adhesive sheet according to claim 2 , wherein the first region has a modulus of about 0.01 MPa to about 3 MPa at 25° C.5. The adhesive sheet according to claim 1 , wherein a difference in glass transition temperature between the second region and the first region is from about 2° C. to about 50° C.6. The adhesive sheet according to claim 1 , wherein the adhesive film has a thickness of about 200 μm or less.7. The adhesive sheet according to claim 1 , wherein the adhesive film further comprises a third region having a modulus between the modulus of the first region and the modulus of the second region.8. The adhesive sheet according to claim 1 , wherein the adhesive film is formed of an adhesive composition comprising a (meth)acrylic copolymer claim 1 , a monofunctional (meth)acrylic monomer claim 1 , a polyfunctional (meth)acrylic monomer claim 1 , and an initiator.9. The adhesive sheet according to claim 8 , wherein the monofunctional (meth)acrylic monomer has a boiling point of about 200° C. or more.10. The adhesive sheet according to claim 9 , wherein the monofunctional (meth)acrylic monomer comprises at least one of isobornyl (meth)acrylate claim 9 , 2-ethylhexyl (meth)acrylate claim 9 , isooctyl (meth)acrylate ...

INTRINSICALLY REVERSIBLE SUPERGLUES

The invention concerns adhesives comprising a polymer network capable of conversion between two different elastic modulus states with essentially no residual stress evolved in conversion between the two different elastic modulus states, wherein the polymer network comprises either or both of (i) poly(2-hydroxy ethyl methacrylate) (PHEMA) hydrogel and/or a copolymers thereof, and (ii) a shape memory polymer. The invention also concerns methods of using such adhesives. 1. An adhesive , comprising:a polymer network capable of conversion between two different elastic modulus states with essentially no residual stress evolved in conversion between the two different elastic modulus states,wherein said polymer network comprises either or both of (i) poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogel and/or a copolymer thereof, and (ii) a shape memory polymer.2. The adhesive of claim 1 , wherein the PHEMA is copolymerized with one or more of poly(methyl methacrylate) (PMMA) claim 1 , poly(acrylic acid) claim 1 , poly(methacrylic acid) claim 1 , poly(N claim 1 , N-isopropyl acrylamide) claim 1 , polyethylene glycol diacrylate (PEGDA) claim 1 , and polyethylene glycol dimethacrylate. (PEGDMA).3. The adhesive of claim 1 , comprising a shape memory polymer claim 1 , the shape memory polymer optionally comprising one or more of bisphenol A-based epoxy crosslinked by polyether amine and decylamine claim 1 , ethylvinyl acetate (EVA) claim 1 , polyurethane claim 1 , poly(ε-caprolactone) (PCL) and poly(cyclohexyl methacrylate) (PCHMA).4. The adhesive of claim 1 , wherein the hydrogel's modulus increases by at least three orders of magnitude when dry versus wet.5. The adhesive of claim 1 , wherein the hydrogel claim 1 , when wet claim 1 , has a Young's modulus of from 10 to 200 kPa and the hydrogel claim 1 , when dry claim 1 , has a modulus of 100 MPa to 10 GPa.6. The adhesive of claim 1 , wherein the hydrogel claim 1 , when contacted with a substrate claim 1 , substantially does not ...

Adhesive film, optical member including same, and optical display device including same

Provided are an adhesive film, an optical member including the same, and an optical display device including the same, the adhesive film being formed from a monomer mixture comprising an alkyl group-containing acrylate and a hydroxyl group-containing acrylate, wherein the adhesive film has a modulus of 80 kPa or less at −20° C., and the adhesive film has a value of 40% to 140% in equation 1 at 25° C.

RESIN COMPOSITION AND DISPLAY UNIT

A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer can have a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10Pa or less. The cured resin layer can be formed from a resin composition that has a cure shrinkage of 5% or less. 1. An image display unit comprising:an image display part;a light-transmitting protective part arranged on the image display part; anda cured resin layer arranged between the image display part and the protective part,wherein:{'sup': '7', 'the cured resin layer has a transmittance of 90% or higher in a visible range, a storage modulus at 25° C. of 1×10Pa or less, and a cure shrinkage of 5% or less, and'} at least one polymer selected from the group consisting of polyurethane acrylate, polyisoprene acrylate, ester of polyisoprene acrylate, hydrogenated terpine resin, and butadiene polymer;', 'at least one acrylate monomer,', 'a first photopolymerization initiator which can cure in the visible range, and', 'a second photopolymerization initiator which can cure in an ultraviolet range., 'the cured resin layer is formed of a photocurable resin composition comprising2. The image display unit according to claim 1 , wherein the first photopolymerization initiator which can cure in the visible range is 2 claim 1 ,4 claim 1 ,6-trimethylbenzoyldiphenylphosphine oxide.3. The image display unit according to claim 1 , wherein the cured resin layer has a thickness in a range of from 50 μm to 200 μm.4. The image display unit according to claim 1 , wherein the image display part is a liquid crystal display panel.5. The image display unit according to claim 1 , wherein the protective part is formed of an acrylic resin.6. The image display unit according to claim 1 , wherein the protective part is formed of an optical glass.7. The image display ...

FORMULATIONS AND APPLICATIONS OF WET-ADHESIVES

The present application discloses methods for using an adhesive composition comprising a polymer of the formulae A, B and C: 6. The method of claim 1 , wherein B claim 1 , N and Y are each independently a substituted aryl group.11. The method of claim 1 , wherein B claim 1 , N and Y are each independently an aryl or a substituted aryl group.12. The method of claim 2 , wherein each R claim 2 , R claim 2 , Rand Ris independently hydrogen or a substituted aryl group.13. The method of claim 1 , wherein at least one of A claim 1 , B claim 1 , M claim 1 , N claim 1 , X and Y is independently selected from the group consisting of the formulae:{'br': None, 'sup': 1', '1', '1', '1', '1', '+, 'sub': 3', '3', '3', '2', '3', '2', '3, '-L-COOH, -L-O—SOH, -L-SOH, -L-O—POH, —POHand -L-NH;'}{'br': None, 'sup': 3', '3', '3', '3', '3', '+, 'sub': 3', '3', '3', '2', '3', '2', '3, '-L-COOH, -L-O—SOH, -L-SOH, -L-O—POH, —POHand -L-NH; and'}{'br': None, 'sup': 5', '5', '5', '5', '5', '+, 'sub': 3', '3', '3', '2', '3', '2', '3, '-L-COOH, -L-O—SOH, -L-SOH, -L-O—POH, —POHand -L-NH;'}{'sup': 1', '3', '5, 'sub': 2', '3', '2', '3', '2', '6', '5, 'wherein each L, Land Lis independently selected from a bond, —CH—, —O—, —S— and —NR′— where R′ is selected from H, —CH, —CHCHand —CHCH.'}17. The method of claim 1 , wherein the adhesive is enhanced in moisture claim 1 , in water or in salted water.18. The method of claim 1 , wherein the surface is selected from the group consisting of human skin claim 1 , wood claim 1 , paper claim 1 , leather claim 1 , metal claim 1 , plastic claim 1 , foam claim 1 , glass claim 1 , plaster and fabric.19. The method of claim 1 , wherein the grip or tackiness of the surface is maintained even with slippery or sweaty skin.20. The method of claim 1 , wherein the solvent is selected from the group consisting of methanol claim 1 , ethanol claim 1 , propanol claim 1 , isopropanol claim 1 , acetone claim 1 , THF claim 1 , MEK claim 1 , MIBK claim 1 , MTBE claim 1 , water ...

PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED POLARIZING FILM AND IMAGE DISPLAY

A pressure-sensitive adhesive layer-attached polarizing film of the invention includes: a polarizing film; and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film includes a polarizer and a transparent protective film provided on only one side of the polarizer, the pressure-sensitive adhesive layer is provided on a side of the polarizer where the transparent protective film is absent, and the pressure-sensitive adhesive layer is made of a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an alkali metal salt (B). The pressure-sensitive adhesive layer-attached polarizing film has a pressure-sensitive adhesive layer with an antistatic function and satisfactory durability and whose optical properties are less likely to be degraded. 115-. (canceled)16. A pressure-sensitive adhesive layer-attached polarizing film , comprising:a polarizing film; anda pressure-sensitive adhesive layer provided on the polarizing film, whereinthe polarizing film includes a polarizer and a transparent protective film provided on only one side of the polarizer,the pressure-sensitive adhesive layer is provided on a side of the polarizer where the transparent protective film is absent,the pressure-sensitive adhesive layer is made of a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an alkali metal salt (B), andan amount of change AP (%) of the pressure-sensitive adhesive layer-attached polarizing film is 0.05 or less, AP being a difference between a degree of polarization of the pressure-sensitive adhesive layer-attached polarizing film before storage at 60° C./95% RH for 500 hours and a degree of polarization of the pressure-sensitive adhesive layer-attached polarizing film after the storage.17. The pressure-sensitive adhesive layer-attached polarizing film according to claim 16 , wherein the alkali metal salt (B) is a lithium salt.18. The pressure-sensitive adhesive layer- ...

Pressure-sensitive adhesive sheet

Provided is a PSA sheet highly durable against repeated deformation and suited for use in a flexible device as well. The PSA sheet provided by this invention comprises a PSA layer. The PSA sheet shows a recovery rate at 100% elongation of 70% or higher. The PSA layer shows a displacement of 0.5 mm or greater according to the following holding power test: <Holding Power Test> At 23° C., the PSA layer is applied over a 10 mm wide by 20 mm long bonding area to a Bakelite plate as an adherend; a 1 kg load is applied in the length direction; after one hour, the displacement from the initial position where first applied is determined.

DOUBLE-FACED PRESSURE-SENSITIVE ADHESIVE SHEET AND USE THEREOF

Provided is a double-faced PSA sheet having excellent detergent resistance. The PSA sheet according to this invention comprises a PSA layer and is adhesive on both faces. The PSA sheet shows a push-peel strength of 30 N/cmor greater after a detergent immersion test involving immersion in a standard detergent at 40° C. for 24 hours. It also has an adhesive strength retention rate of 50% or higher, determined as the ratio of push-peel strength P after the detergent immersion test to push-peel strength P before the detergent immersion test. 1. An adhesively double-faced pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer ,{'sup': '2', 'exhibiting a push-peel strength of 30 N/cmor greater after a detergent immersion test involving immersion in a standard detergent at 40° C. for 24 hours, and'}{'b': 2', '1, 'having an adhesive strength retention rate of 50% or higher, determined as the ratio of push-peel strength P after the detergent immersion test to push-peel strength P before the detergent immersion test.'}2. The double-faced pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer is an acrylic pressure-sensitive adhesive layer comprising an acrylic polymer as its base polymer.3. The double-faced pressure-sensitive adhesive sheet according to claim 2 , wherein the acrylic polymer is crosslinked with at least one species of crosslinking agent selected from the group consisting of isocyanate crosslinking agents and epoxy-based crosslinking agents.4. The double-faced pressure-sensitive adhesive sheet according to claim 2 , wherein the pressure-sensitive adhesive layer comprises at least one species of tackifier resin selected from the group consisting of a rosin-based tackifier resin claim 2 , a terpene-based tackifier resin claim 2 , a phenolic tackifier resin and a petroleum resin.5. The double-faced pressure-sensitive adhesive sheet according to claim 4 , wherein the tackifier resin content ...

ADHESIVE SHEET, OPTICAL FILM WITH ADHESIVE LAYER, MULTILAYER BODY AND IMAGE DISPLAY DEVICE

A pressure sensitive adhesive sheet () according to the present invention contains an acryl-based base polymer having a crosslinked structure, and an acryl-based oligomer having a glass transition temperature of 60° C. or higher. The pressure sensitive adhesive sheet has a storage elastic modulus G′of 5 to 75 kPa at 25° C. and 1 Hz, a loss tangent tan δof 0.2 to 0.45 at 25° C. and 1 Hz, a loss tangent tan δof 0.2 to 0.45 at 100° C. and 1 Hz, a difference between the tan 625 and the tan δof −0.09 to 0.09, and a glass transition temperature of −15° C. or lower. 1. A pressure sensitive adhesive sheet for bonding members of a bendable image display device , the pressure sensitive adhesive sheet comprising:an acryl-based base polymer having a crosslinked structure; andan acryl-based oligomer having a glass transition temperature of 60° C. or higher, [{'sub': '25', 'a storage elastic modulus G′of 5 to 75 kPa at 25° C. and 1 Hz,'}, {'sub': '25', 'a loss tangent tan δof 0.2 to 0.45 at 25° C. and 1 Hz,'}, {'sub': '100', 'a loss tangent tan δof 0.2 to 0.45 at 100° C. and 1 Hz,'}, {'sub': 25', '100, 'a difference between the tan δand the tan δof −0.09 to 0.09, and'}, 'a glass transition temperature of −15° C. or lower., 'wherein the pressure sensitive adhesive has'}2. The pressure sensitive adhesive sheet according to claim 1 , wherein the pressure sensitive adhesive sheet has a storage elastic modulus G′of 3 to 50 kPa at 100° C. and 1 Hz.3. The pressure sensitive adhesive sheet according to claim 1 , wherein the pressure sensitive adhesive sheet has a gel fraction of 55 to 85%.4. The pressure sensitive adhesive sheet according to claim 1 , wherein the acryl-based base polymer is a copolymer containing: 30 to 70 parts by weight of a (meth)acrylic acid Cchain alkyl ester; 15 to 60 parts by weight of a (meth)acrylic acid Cchain alkyl ester; and 5 to 25 parts by weight of one or more polar group-containing monomers selected from the group consisting of hydroxy group-containing ...

Ultraviolet-curable Resin Composition, Cured Product, and Optical Member

The present invention relates to an optical member fabricated by laminating together at least two substrates by means of a cured product layer of an ultraviolet-curable resin composition containing (A) a (meth)acrylic polymer having a weight average molecule weight of 1,500 to 30,000, (B) a (meth)acrylate compound having a (meth)acrylic equivalent of 200 g/eq. or more and having at least two (meth)acryloyl groups, and (C) a photopolymerization initiator, and an ultraviolet-curable resin composition for laminating together at least two substrates, and is useful as an optical transparent adhesive exhibiting high curability, allowing for lesser shrinkage during curing, and being excellent in the transparency of the cured product as well as in the adhesiveness to a substrate and the flexibility.

HAND-TEARABLE DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE

A double-sided pressure-sensitive adhesive tape includes a support base member having a hand tearable property, a first acrylic adhesive layer on one surface of the support base member, and a second acrylic adhesive layer on another surface of the support base member. The first acrylic adhesive layer has a thickness t1 that is 5 μm or more and 50 μm or less, the second acrylic adhesive layer has a thickness t2 that is greater than the thickness t1 of the first acrylic adhesive layer and is 20 μm or more, the second acrylic adhesive layer has gel fraction X2 that is 20 mass % or more and 75 mass % or less, and the second acrylic adhesive layer has adhesive force greater than adhesive force of the first acrylic adhesive layer. 1. A double-sided pressure-sensitive adhesive tape comprising:a support base member having a hand tearable property;a first acrylic adhesive layer on a side of one surface of the support base member; anda second acrylic adhesive layer on a side of another surface of the support base member, whereinthe first acrylic adhesive layer has a thickness t1 that is 5 μm or more and 50 μm or less,the second acrylic adhesive layer has a thickness t2 that is greater than the thickness t1 of the first acrylic adhesive layer and is 20 μm or more,the second acrylic adhesive layer has gel fraction X2 that is 20 mass % or more and 75 mass % or less, andthe second acrylic adhesive layer has adhesive force greater than adhesive force of the first acrylic adhesive layer.2. The double-sided pressure-sensitive adhesive tape according to claim 1 , wherein the first acrylic adhesive layer has gel fraction X1 that is 35 mass % or more and 90 mass % or less.3. The double-sided pressure-sensitive adhesive tape according to claim 1 , wherein the gel fraction X1 of the first acrylic adhesive layer is greater than the gel fraction X2 of the second acrylic adhesive layer.4. The double-sided pressure-sensitive adhesive tape according to claim 1 , wherein the support base ...

OPTICAL ADHESIVE LAYER, MANUFACTURING METHOD OF OPTICAL ADHESIVE LAYER, OPTICAL FILM WITH ADHESIVE LAYER, AND IMAGE DISPLAY DEVICE

The purpose of the present invention is to provide: an optical pressure-sensitive adhesive layer which can suppress the occurrence of foaming, peeling, lifting or the like on an adherend (an optical film) under heating and humidification conditions, and which has high adhesion reliability and excellent durability at high temperatures; a pressure-sensitive adhesive layer attached optical film, having the aforementioned optical pressure-sensitive adhesive layer on at least one surface of the optical film; and further a liquid crystal display device using the aforementioned pressure-sensitive adhesive layer attached optical film. An optical pressure-sensitive adhesive layer formed from a pressure-sensitive adhesive composition containing a (meth)acrylic polymer, wherein the optical pressure-sensitive adhesive layer has a gel fraction of 70% or more and a creep value of 55 μm or more when a load of 500 g is applied to the optical pressure-sensitive adhesive layer for 1 hour under an environment of 115° C. 1. An optical pressure-sensitive adhesive layer formed from a pressure-sensitive adhesive composition containing a (meth)acrylic polymer ,wherein the optical pressure-sensitive adhesive layer has a gel fraction of 70% or more and a creep value of 55 μm or more when a load of 500 g is applied to the optical pressure-sensitive adhesive layer for 1 hour under an environment of 115° C.2. The optical pressure-sensitive adhesive layer according to claim 1 , wherein a polydispersity (weight average molecular weight (Mw)/number average molecular weight (Mn)) of the (meth)acrylic polymer is 3.0 or less.3. The optical pressure-sensitive adhesive layer according to claim 1 , wherein a weight average molecular weight (Mw) of the (meth)acrylic polymer is from 900 claim 1 ,000 to 3 claim 1 ,000 claim 1 ,0004. The optical pressure-sensitive adhesive layer according to claim 1 , wherein the pressure-sensitive adhesive composition contains a peroxide-based crosslinking agent.5. The ...

Pressure Sensitive Adhesive Compositions and Methods for Preparing Same

A pressure sensitive adhesive composition is described. The pressure sensitive adhesive composition includes a polymerization product of a monomer mixture. The monomer mixture includes the following components: (a) at least one alkyl ester of (meth)acrylic acid or cyclic hydrocarbon acrylates; (b) at least one vinyl ester of a C-Ccarboxylic acid; (c) at least one hydroxyl functional (meth)acrylate monomer, or at least one epoxy functional (meth)acrylate monomer; (d) at least one ureido substituted ethylenically unsaturated monomer; and one or more optional monomer components (e)-(g). The pressure sensitive adhesive composition provides a desirable combination of low and high temperature performance, and good adhesion to both metal and organic polymer surfaces. 1. A pressure sensitive adhesive composition comprising a polymerization product of a monomer mixture , the monomer mixture comprising the following components:(a) one or more alkyl ester of (meth)acrylic acid or cyclic hydrocarbon acrylate, wherein the one or more alkyl ester of (meth) acrylic acid or cyclic hydrocarbon acrylates comprises at least one low Tg monomer that produces a homopolymer having a Tg of less than −20° C., and wherein the sum of all of the one or more alkyl ester of (meth) acrylic acid or cyclic hydrocarbon is more than 30 wt. %;{'sub': 4', '20, '(b) 0.1 to less than 25 wt. % of at least one vinyl ester of C-Ccarboxylic acids;'}(c) 0.1 to 8 wt. % of at least one hydroxyl functional (meth)acrylate monomer, or 0.1 to 10 wt. % of at least one epoxy functional (meth)acrylate monomer;(d) 0.05 to 3 wt. % of least one ureido substituted ethylenically unsaturated monomer;(e) optionally 0 to 6 wt. % at least one ethylenically unsaturated carboxylic acid;(f) optionally 0 to 20 wt. % of at least one vinyl aromatic monomer; and(g) optionally 0 to 25 wt. % of at least one ethylenically unsaturated monomer different from monomers (a) to (f),wherein the wt. % is based on the total weight of the monomer ...

Resin composition and display unit

A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10 7 Pa or less. The cured resin layer is formed from a resin composition that has a cure shrinkage of 5% or less.

OPTICALLY CLEAR ADHESIVE AND OPTICAL LAMINATE

Problem: To provide an optically clear adhesive with a high dielectric constant having an excellent balance of adhesive strength and cohesive strength as well as excellent optical characteristics, and an optical laminate containing the same. Solution: The optically clear adhesive of an embodiment of the present disclosure comprises a polymer of an acrylic monomer composition containing a hydroxyl group-containing monomer and at least 0.09 mass % and less than 50 mass % of a monofunctional alkyl (meth)acrylate, wherein the number of moles of OH in 100 g of the adhesive is at least 0.3 and at most 0.90. 1. An optically clear adhesive comprising a polymer of an acrylic monomer composition containing a hydroxyl group-containing monomer and at least 0.09 mass % and less than 50 mass % of a monofunctional alkyl (meth)acrylate , a number of moles of OH in 100 g of the adhesive being at least 0.30 and at most 0.90.2. The optically clear adhesive according to claim 1 , wherein the acrylic monomer composition contains more than 50 mass % of the hydroxyl group-containing monomer.3. The optically clear adhesive according to claim 1 , wherein the optically clear adhesive contains a hydroxyl group-containing acrylic oligomer having a molecular weight of at least 1 claim 1 ,000 and at most 60 claim 1 ,000.4. The optically clear adhesive according to claim 1 , wherein the adhesive is nonaqueous.5. The optically clear adhesive according to claim 1 , wherein a dielectric constant of the adhesive is at least 8.0 at 100 kHz.6. The optically clear adhesive according to claim 1 , wherein the acrylic monomer composition further contains an alkoxyalkyl (meth)acrylate.7. The optically clear adhesive according to claim 1 , wherein the monofunctional alkyl (meth)acrylate has a straight-chain alkyl group with from 4 to 12 carbon atoms.8. The optically clear adhesive according to claim 1 , wherein a storage modulus G′ of the adhesive is at least 1×10Pa and at most 5×10Pa at 25° C. and 1 Hz.9. ...

PRESSURE SENSITIVE ADHESIVE SHEET, METHOD FOR MANUFACTURING THEREOF, AND PRESSURE SENSITIVE ADHESIVE FILM

The pressure sensitive adhesive sheet is a sheet shaped pressure sensitive adhesive including an acryl-based base polymer. The acryl-based base polymer contains an acryl-based segment and a urethane-based segment, and a content of the urethane-based segment is 3 to 30 parts by weight based on 100 parts by weight of the acryl-based segment. The urethane-based segment includes at least one urethane chain selected from the group consisting of a polyether urethane and a polyester urethane. The content of the urethane-based segment other than the polyether urethane-based segment is 15 parts by weight or less based on 100 parts by weight of the acryl-based segment. 1. A pressure sensitive adhesive sheet in which a pressure sensitive adhesive comprising an acryl-based base polymer is formed in a layer shape ,the acryl-based base polymer contains an acryl-based segment and a urethane-based segment, and a content of the urethane-based segment is 3 to 30 parts by weight based on 100 parts by weight of the acryl-based segment,the urethane-based segment includes at least one urethane chain selected from the group consisting of a polyether urethane and a polyester urethane, and a content of the urethane-based segment other than polyether urethane-based segment is 15 parts by weight or less based on 100 parts by weight of the acryl-based segment.2. The pressure sensitive adhesive sheet according to claim 1 , wherein a weight average molecular weight of the urethane-based segment is 3000 to 50000.3. The pressure sensitive adhesive sheet according to claim 1 , wherein an amount of a (meth)acrylic acid alkyl ester having a linear or branched alkyl group having 6 or less carbon atoms is 30 to 80% by weight based on a total amount of constituent monomer components of the acryl-based segment.4. The pressure sensitive adhesive sheet according to claim 1 , wherein a content of a polyether urethane-based segment is 3 parts by weight or more based on 100 parts by weight of the acryl-based ...

Polyfunctional polymer and method for producing same

The present invention is a method for producing a polyfunctional polymer that contains a structural unit having a urethane bond and a polymerizable unsaturated bond in a side chain, and is characterised by including a reaction process in which a polymer (P) containing a structural unit (a) having a hydroxy group in a side chain and a monomer (M) having an isocyanate group and a polymerizable unsaturated bond are reacted in the presence of a bismuth carboxylate.

FLEXIBLE DISPLAY APPARATUS

A flexible display apparatus includes a display unit, a first adhesive film on the display unit, an optical film on the first adhesive film, a second adhesive film on the optical film, and a window film on the second adhesive film, and the second adhesive film has a higher modulus than the first adhesive film at −20° C. to 25° C. 1. A flexible display apparatus comprising:a display unit;a first adhesive film on the display unit;an optical film on the first adhesive film;a second adhesive film on the optical film; anda window film on the second adhesive film,wherein the second adhesive film has a higher modulus than the first adhesive film at −20° C. to 25° C.2. The flexible display apparatus according to claim 1 , wherein a modulus ratio of the modulus of the second adhesive film to the modulus of the first adhesive film at −20° C. to 25° C. is greater than about 1.0 to about 10.3. The flexible display apparatus according to claim 1 , wherein a modulus ratio of a modulus of the second adhesive film to a modulus of the first adhesive film at 80° C. is about 1.0 or greater.4. The flexible display apparatus according to claim 1 , wherein the optical film comprises at least one of a polarizing plate and a touchscreen panel.5. The flexible display apparatus according to claim 1 , wherein the first adhesive film has a modulus of about 150 kPa or less at −20° C.6. The flexible display apparatus according to claim 1 , wherein the second adhesive film has a modulus of about 25 kPa or less at 80° C.7. The flexible display apparatus according to claim 1 , wherein each of the first adhesive film and the second adhesive film has a peel strength of about 800 gf/in or greater at 25° C.8. The flexible display apparatus according to claim 1 , wherein the flexible display apparatus has a bubble generation area ratio of 5% or less.9. The flexible display apparatus according to claim 1 , wherein each of the first adhesive film and the second adhesive film is a cured product of an ...

OLED-COMPATIBLE ADHESIVE MASSES HAVING SILANE WATER SCAVENGERS

A barrier adhesive for the encapsulation of an (opto)electronic arrangement comprising an adhesive base composed of at least one reactive resin having at least one activatable group, at least one polymer, especially an elastomer, optionally at least one tackifying resin, where the adhesive base has a water vapour permeation rate after the activation of the reactive resin of less than 100 g/md, preferably of less than 50 g/md, especially less than 15 g/md, a transparent molecularly dispersed getter material and optionally a solvent, wherein the getter material is at least one silane having at least one alkoxy group and at least one activatable group. 1: Barrier adhesive comprising at least one reactive resin having at least one activatable group,', 'at least one polymer,', 'optionally at least one tackifying resin,, 'an adhesive base composed of'}{'sup': '2', 'wherein the adhesive base has a water vapor permeation rate after the activation of the reactive resin of less than 100 g/md,'}a transparent molecularly dispersed getter material andoptionally a solvent,whereinthe getter material is at least one silane having at least one alkoxy group and at least one activatable group.2: Barrier adhesive according to claim 1 , wherein the reactive resin and silane have the same kind of groups.3: Barrier adhesive according to claim 1 , wherein the alkoxy group is an ethoxy group.4: Barrier adhesive according to claim 1 , wherein the amount of getter material is at least 2% by weight of the adhesive.5: Barrier adhesive according to claim 1 , wherein the amount of getter material is not more than 15% by weight.6: Barrier adhesive according to claim 1 , wherein the amount of getter material is 3% to 15% by weight.7: Barrier adhesive according to claim 1 , wherein the activatable group is at least one group selected from the group consisting of cyclic ether groups claim 1 , acrylates and methacrylates.8: Barrier adhesive according to claim 1 , wherein the at least one reactive ...

Pressure sensitive adhesive-equipped polarizing plate

Disclosed is a pressure sensitive adhesive-equipped polarizing plate ( 100 ) including a first pressure sensitive adhesive sheet arranged on one principal surface of a polarizing plate containing a polyvinyl alcohol-based polarizer. The polarizing plate includes a transparent protective film bonded to the second principal surface of the polarizer, and a urethane layer having a thickness of 0.1 to 10 μm disposed in contact with the first principal surface of the polarizer. The value XD 2 of the first pressure sensitive adhesive sheet disposed on the urethane layer is 1×10 −7 g/24 h or more, where X is a water-vapor permeability of the pressure sensitive adhesive sheet, and D is a thickness of the pressure sensitive adhesive sheet.

Curable acrylic composition, acrylic tape, acrylic rubber roll and method for preparing the acrylic rubber roll

Disclosed is a method for preparing an acrylic rubber roll. The method includes mixing and stirring 50-77 wt % 2-ethylhexyl acrylate, 2-10 wt % acrylic acid, 20-40 wt % 2-hydroxyethyl acrylate, and 0.1-0.5 wt % curing agent at room temperature to form a mixture; adding 0.1-0.2 wt % photoinitiator into the mixture, and continuing to stir until the photoinitiator is fully dissolved in order to form an acrylic composition; irradiating the acrylic composition with UV light to crosslink and cure the acrylic composition in order to obtain an acrylic tape; and cutting the acrylic tape according to a size of a plastic rubber roll shaft, and evenly sticking the acrylic tape to a freely-rotatable rubber roll while avoiding air bubbles so as to obtain the acrylic rubber roll.

OPTICAL ADHESIVE SHEET

The present invention provides an optical adhesive sheet including a layered structure of a first adhesive layer and a second adhesive layer, in which the first adhesive layer has a glass transition temperature of −50° C. to −30° C. and a modulus of 0.3×10Pa to about 0.6×10Pa, and the second adhesive layer has a glass transition temperature of −20° C. to −10° C. and a modulus of 0.7×10Pa to 1.0×10Pa. 1. An optical adhesive sheet comprising a layered structure of a first adhesive layer and a second adhesive layer ,{'sup': 5', '5, 'wherein the first adhesive layer has a glass transition temperature of −50° C. to −30° C. and a modulus of 0.3×10Pa to 0.6×10Pa, and'}{'sup': 5', '5, 'the second adhesive layer has a glass transition temperature of −20° C. to −10° C. and a modulus of 0.7×10Pa to 1.0×10Pa.'}2. The optical adhesive sheet of claim 1 , wherein the first adhesive layer is formed by curing a first adhesive composition comprising a first acrylic resin formed by copolymerizing two or more (meth)acrylic acid ester-based monomers and a crosslinkable monomer containing a hydroxy group.3. The optical adhesive sheet of claim 2 , wherein in a total polymerizable monomer component which forms the first acrylic resin claim 2 , the content of the two or more (meth)acrylic acid ester-based monomers is 70 wt % to 90 wt % claim 2 , and the content of the crosslinkable monomer containing a hydroxy group is 10 wt % to 30 wt %.4. The optical adhesive sheet of claim 2 , wherein the first adhesive composition further comprises 0.01 parts by weight to 5.1 parts by weight of a polyfunctional (meth)acrylate-based compound based on 100 parts by weight of the first acrylic resin.5. The optical adhesive sheet of claim 2 , wherein the first adhesive layer is formed by UV-curing the first adhesive composition.6. The optical adhesive sheet of claim 1 , wherein the second adhesive layer is formed by curing a second adhesive composition comprising a second acrylic resin formed by ...

PRESSURE-SENSITIVE ADHESIVE SHEET

A pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer and a substrate layer configured to support the pressure-sensitive adhesive agent layer. The pressure-sensitive adhesive layer has a storage modulus of 250 kPa or less at 23° C. The substrate layer has an elastic modulus of 1680 N/cm to 3000 N/cm both inclusive. The pressure-sensitive adhesive sheet shows a deviation amount less than 1.0 mm The amount is the deviation amount of the pressure-sensitive adhesive sheet per 250 gf/cmof the sheet in a holding ability test at 80° C. after one hour from a time when the test is started. 1. A pressure-sensitive adhesive sheet comprising:a pressure-sensitive adhesive layer; anda substrate layer configured to support the pressure-sensitive adhesive layer, whereinthe pressure-sensitive adhesive layer having a storage modulus of 250 kPa or less at 23° C.,the substrate layer having an elastic modulus of 1680 N/cm to 3000 N/cm both inclusive, and{'sup': '2', 'the pressure-sensitive adhesive sheet showing a deviation amount less than 1.0 mm, the amount being the deviation amount of the pressure-sensitive adhesive sheet per 250 gf/cmof the sheet in a holding ability test at 80° C. after one hour from a time when the test is started.'}2. The pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer has a probe tack of 20 kN/mor more at 23° C.3. The pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer has a storage modulus of 12 kPa or more at 23° C.4. The pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer has a thickness of 15 μm or more.5. The pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer has a surface tension of 20 dyn/cm or more.6. The pressure-sensitive adhesive sheet according to claim 1 , wherein the substrate layer has a thickness of 10 μm to 100 μ ...

ADHESIVE AGENT

Provided are: an adhesive that offers high adhesiveness to bond and secure an adherend even in a high-temperature environment, as long as securing is necessary. The adherend can be removed without failure and without adhesive residue once securing becomes unnecessary; and a method for processing an adherend using the adhesive. The adhesive according to the present invention contains a multivalent vinyl ether compound (A) and at least one of a compound (B) and a compound (C). The compound (B) is represented by Formula (b). The compound (C) includes two or more constitutional units each represented by Formula (c). Formulae (b) and (c) are expressed as follows: 3. The adhesive according to one of and , further comprisingan acid generator.4. The adhesive according to claim 1 ,wherein the compound (C) has a weight-average molecular weight of 1500 or more as determined by GPC and calibrated with a polystyrene standard.7. The adhesive according to claim 1 , further comprisinga surfactant.8. A method for temporarily securing an adherend to a support using an adhesive claim 1 , the method comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'subjecting the adhesive according to to a heat treatment to give a polymer derived from the multivalent vinyl ether compound (A) and at least one of the compound (B) represented by Formula (b) and the compound (C) including two or more constitutional units each represented by Formula (c), and securing the adherend to the support via the polymer; and'}subjecting the polymer to a heat treatment or to light irradiation in combination with the heat treatment to soften or liquefy, and removing the adherend from the support.9. A method for processing an adherend claim 1 , the adherend being temporarily secured using an adhesive claim 1 , the method comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'subjecting the adhesive according to to a heat treatment to give a polymer derived from the ...

ADHESIVE COMPOSITION FOR TOUCH SCREEN PANEL, OPTICAL ADHESIVE FILM AND TOUCH SCREEN PANEL

Provided is an adhesive composition including: a (meth)acrylic acid ester-based photo-curable resin; and an oxygen-free di-functional diene-based rubber hardener. 1. An adhesive composition comprising:a (meth)acrylic acid ester-based photo-curable resin; andan oxygen-free di-functional diene-based rubber hardener.2. The adhesive composition of claim 1 , wherein the oxygen-free di-functional diene-based rubber hardener comprises a diene-based di-functional group at both ends thereof.3. The adhesive composition of claim 1 , wherein the oxygen-free di-functional diene-based rubber hardener comprises one selected from the group consisting of a di-functional polybutadiene claim 1 , a di-functional isoprene rubber claim 1 , a di-functional isobutylene-isoprene rubber claim 1 , a di-functional styrene-butylene rubber claim 1 , and a combination thereof.4. The adhesive composition of claim 1 , wherein the oxygen-free di-functional diene-based rubber hardener has a weight average molecular weight from 3 claim 1 ,000 to 20 claim 1 ,000.5. The adhesive composition of claim 1 , wherein the oxygen-free di-functional diene-based rubber hardener has a dielectric constant k value from 2.1 to 2.5 measured at a frequency of 100 kHz.6. The adhesive composition of claim 1 , wherein the adhesive composition comprises:100 parts by weight of the (meth)acrylic acid ester-based photo-curable resin; and0.1 to 2 parts by weight of the oxygen-free di-functional diene-based rubber hardener.7. The adhesive composition of claim 1 , wherein the (meth)acrylic acid ester-based photo-curable resin is a resin in which a (meth)acrylic acid ester monomer and a crosslinkable monomer comprising at least one selected from the group consisting of a hydroxy group-containing monomer claim 1 , a carboxyl group-containing monomer claim 1 , or a nitrogen-containing monomer claim 1 , and a combination thereof are copolymerized with each other.8. The adhesive composition of claim 7 , wherein the (meth)acrylic acid ...

ADHESIVE FOR MOUNTING ELECTRONIC COMPONENT AND ADHESIVE FILM FOR MOUNTING FLIP CHIP

The present invention aims to provide an adhesive for mounting an electronic component. The adhesive enables sufficient soldering while preventing solder flow in a short mounting time, suppresses voids, and is excellent in reflowing resistance. The present invention also aims to provide an adhesive film for mounting a flip chip including the adhesive for mounting an electronic component. The present invention relates to an adhesive for mounting an electronic component including: an acrylic polymer having a (meth)acryloyl group in a side chain and having a double bond equivalent of 1 to 5 meq/g; a tri- or higher functional (meth)acrylate compound; and a radical polymerization initiator. 1. An adhesive for mounting an electronic component comprising:an acrylic polymer having a (meth)acryloyl group in a side chain and having a double bond equivalent of 1 to 5 meq/g;a tri- or higher functional (meth)acrylate compound; anda radical polymerization initiator.2. The adhesive for mounting an electronic component according to claim 1 , wherein the radical polymerization initiator is a heat radical polymerization initiator.3. The adhesive for mounting an electronic component according to claim 1 , further comprising an epoxy resin and an epoxy curing agent.4. The adhesive for mounting an electronic component according to claim 3 ,wherein the epoxy resin contains an epoxy compound having an epoxy group and a (meth)acryloyl group in one molecule.5. The adhesive for mounting an electronic component according to claim 1 , further comprising an inorganic filler.6. The adhesive for mounting an electronic component according to claim 1 , further comprising a silane coupling agent having a (meth)acrylic group.7. The adhesive for mounting an electronic component according to claim 1 ,wherein the acrylic polymer having a (meth)acryloyl group in a side chain and having a double bond equivalent of 1 to 5 meq/g has a (meth)acryloyl group only in the side chain.8. An adhesive film for ...

MODIFIED POLYOLEFIN RESIN

Provided is a modified polyolefin resin that is excellent in adhesion to nonpolar substrates such as a polyolefin substrate, and excellent in stability in an alcohol solvent. In the modified polyolefin resin, the following polymer (A) is grafted on the following resin (B). 1. A modified polyolefin resin , comprising:a polymer (A), which is a polymer comprising constitutional unit selected from the group consisting of a constitutional unit derived from an α,β-unsaturated carboxylic acid and a constitutional unit derived from a derivative of an α,β-unsaturated carboxylic acid, and having a hydroxyl value in a range of 10 mgKOH/g or larger and 200 mgKOH/g or smaller, anda resin (B), which is a polyolefin resin or a modified product thereof,wherein the polymer (A) is grafted on the resin (B).2. The modified polyolefin resin according to claim 1 , wherein the modified polyolefin resin is a chlorinated resin.3. The modified polyolefin resin according to claim 2 , wherein the resin (B) is a chlorinated polyolefin resin.4. The modified polyolefin resin according to claim 1 , wherein the polymer (A) has a glass transition temperature (Tg) in a range of −10° C. or higher and 60° C. or lower.5. The modified polyolefin resin according to claim 1 , wherein the polymer (A) comprises a constitutional unit derived from an α claim 1 ,β-unsaturated carboxylic acid ester.6. The modified polyolefin resin according to claim 1 , wherein a content of the polymer (A) is in a range of 30% by weight or higher and 90% by weight or lower.7. The modified polyolefin resin according to claim 1 , wherein the modified polyolefin resin has a weight-average molecular weight in a range of 10 claim 1 ,000 or higher and 200 claim 1 ,000 or lower.8. A resin dispersion claim 1 , comprising:a dispersing medium comprising 50% by weight or higher of alcohols; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the modified polyolefin resin according to .'}9. A composition for adhesives claim 1 , comprising ...

RESIN COMPOSITION AND DISPLAY UNIT

A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10Pa or less. The cured resin layer is formed from a resin composition that has a cure shrinkage of 5% or less. 2. The image display unit according to claim 1 , the first photopolymerization initiator which can cure in the visible range is 2 claim 1 ,4 claim 1 ,6-trimethylbenzoyldiphenylphosphine oxide.3. The image display unit according to claim 1 , wherein the cured resin layer has a thickness in a range of from 50 μm to 200 μm.4. The image display unit according to claim 1 , wherein the image display part is a liquid crystal display panel.5. The image display unit according to claim 1 , wherein the protective part is formed of an acrylic resin.6. The image display unit according to claim 1 , wherein the protective part is formed of an optical glass.7. The image display unit according to claim 1 , wherein the storage modulus at 25° C. of the cured resin layer is in a range of from 1×10Pa to 1×10Pa.8. The image display unit according to claim 1 , wherein the cure shrinkage of the resin composition is in a range of from 0 to 2.0%.9. The image display unit according to claim 1 , wherein a surface of the protective part or a surface of the image display part has an average surface roughness of 6 nm or less.10. The image display unit according to claim 1 , wherein the at least one acrylate monomer is selected from the group consisting of isobornyl acrylate claim 1 , dicyclopentenyloxyethyl methacrylate claim 1 , and 2-hydroxybutyl methacrylate.11. The image display unit according to claim 1 , wherein the cured resin layer has a refractive index in a range of from 1.45 to 1.55.12. The image display unit according to claim 1 , further comprising a ...

Self-healing polymeric materials via unsaturated polyester resin chemistry

Disclosed herein are self-healing materials, which are smart materials that are capable of repairing themselves without any external intervention when they are damaged. The self-healing materials may be microencapsulated, for example in a one-capsule system or a two-capsule system, and damage to a matrix containing the microcapsules may rupture the microcapsules and cause the healing materials to be released into the site of damage, where it may polymerize and restore the functional capabilities of the matrix. The self-healing materials may be based on unsaturated multi-functional resins capable of oxygen-initiated cross-linking, and may include alkyd resins, such as alkyd resins that include one or more telechelic end groups.

Adhesive including pendant (meth)acryloyl groups, article, and method

An adhesive including a (meth)acrylate copolymer having pendant (meth)acryloyl groups, wherein the (meth)acrylate copolymer has a weight average molecular weight of 50,000 Daltons to 600,000 Daltons and an average molecular weight between (meth)acryloyl groups equal to at least 6,000 Daltons.

Liquid optical adhesive compositions

The disclosure describes a curable composition comprising a) a solute (meth) acryloyl oligomer having a plurality of pendent, ethylenically unsaturated, free-radically polymerizable functional groups and nucleophilic, hydrophilic groups, a M w of 5 k to 30 k. a T g <20° C.; b) a solvent monomer component; and non-reactive oligomer an a photolnitiator. The curable composition may be used as an adhesive in optical applications.

Multilayer adhesive article

An adhesive article is described comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications and is designed to fail cohesively.

Adhesive composition

Provided is an adhesive composition having high adhesiveness to polyamides. An adhesive composition for bonding adherends comprising a polyamide, comprising the following components (1) to (4): (meth)acrylates (1), excluding the component (2), comprising the following ingredients (1-1), (1-2), and (1-3): a (meth)acrylate (1-1), excluding an ingredient (1-3), having an aromatic group; a (meth)acrylate (1-2) having a hydroxy group; and a (meth)acrylate (1-3) represented by general formula (A); an acidic phosphate compound (2); a polymerization initiator (3); and a reducing agent (4) comprising a transition metal salt.

ADHESIVE COMPOSITION AND ADHESIVE FILM FOR TOUCH PANEL

Provided are: an adhesive composition for a touch panel, including an acrylic resin, a first curing agent having one to three functional groups, a second curing agent having four to six functional groups, and an ultraviolet blocking agent containing a benzotriazole group; and an adhesive film for a touch panel, including a cured product of the composition. 1. An adhesive composition for a touch panel , comprising: an acrylic resin; a first curing agent having one to three functional groups; a second curing agent having four to six functional groups; and an ultraviolet blocking agent containing a benzotriazole group.2. The adhesive composition of claim 1 , wherein a weight ratio of the first curing agent:the second curing agent is 2:1 to 4:1.3. The adhesive composition of claim 1 , wherein the first curing agent and the second curing agent are a hexamethylene diisocyanate (HDI)-based curing agent.4. The adhesive composition of claim 1 , wherein the acrylic resin is formed by polymerizing a monomer component including: a (meth)acrylic acid ester-based monomer; and a hydrophilic functional group-containing monomer.5. The adhesive composition of claim 4 , wherein the monomer component comprises the hydrophilic functional group-containing monomer in an amount of 5 to 15 parts by weight based on 100 parts by weight of the (meth)acrylic acid ester-based monomer.6. The adhesive composition of claim 4 , wherein the hydrophilic functional group-containing monomer comprises at least one selected from the group consisting of a hydroxyl group-containing monomer claim 4 , an amino group-containing monomer claim 4 , a carboxyl group-containing monomer claim 4 , a sulfone group-containing monomer claim 4 , a morpholine group-containing monomer claim 4 , a glycidyl group-containing monomer claim 4 , and a combination thereof.7. The adhesive composition of claim 4 , wherein the (meth)acrylic acid ester-based monomer is a linear or branched alkyl (meth)acrylate having 1 to 14 carbon ...

RESIN COMPOSITION AND DISPLAY UNIT

A display unit that includes an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the display part and the protective part. The cured resin layer has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10Pa or less. The cured resin layer is formed from a resin composition that has a cure shrinkage of 5% or less. 1. An image display unit comprising:an image display part;a light-transmitting protective part arranged on the image display part; anda cured resin layer arranged between the image display part and the protective part,wherein: at least one polymer selected from the group consisting of polyurethane acrylate, polyisoprene acrylate, ester of polyisoprene acrylate, hydrogenated terpine resin, and butadiene polymer;', 'at least one acrylate monomer, and', 'at least two photopolymerization initiators, one of the at least two photopolymerization initiators being 1-hydroxy-cyclohexyl-phenyl ketone, and another of the at least two photopolymerization initiators being 2,4,6-trimethylbenzoyldiphenylphosphine oxide, and, 'the cured resin layer is formed of a photocurable resin composition comprising{'sup': '7', 'the cured resin layer has a transmittance of 90% or higher in a visible range, a storage modulus at 25° C. of 1×10Pa or less, and a cure shrinkage of 0 to 2.0%.'}2. The image display unit according to claim 1 , wherein the cured resin layer has a thickness in a range of from 50 μm to 200 μm.3. The image display unit according to claim 1 , wherein the image display part is a liquid crystal display panel.4. The image display unit according to claim 1 , wherein the protective part is formed of an acrylic resin.5. The image display unit according to claim 1 , wherein the protective part is formed of an optical glass.6. The image display unit according to claim 1 , wherein the storage modulus at 25° C. of the cured resin layer is in a range of ...

BIOBASED PRE-POLYMERS AND USES THEREOF FOR PREPARING POLYMERS WHICH ARE OF USE AS ADDITIVES IN A POLY(LACTIC ACID) MATRIX

The present invention relates to the use of a compound having the following formula (I): 2. The method according to claim 1 , wherein the additives enhance the reinforcement against shocks of a matrix of polyester claim 1 , poly(vinyl chloride) claim 1 , polyurethane claim 1 , polyamide claim 1 , poly(alkyl acrylate) claim 1 , poly(alkyl methacrylate) claim 1 , polystyrene or polyolefin claim 1 , and/or to assist in the nanostructuring of the said matrix.3. (canceled)10. Adhesives claim 7 , surfactants claim 7 , films claim 7 , thermoplastic elastomers claim 7 , paints or fibers comprising compounds having the formulas (IV) according to .11. A composition comprising a matrix of polyester claim 1 , poly(vinyl chloride) claim 1 , polyurethane claim 1 , polyamide claim 1 , poly(alkyl acrylate) claim 1 , poly(alkyl methacrylate) claim 1 , polystyrene or polyolefin claim 1 , and at least one compound having the formulas (II) claim 1 , (III) claim 1 , (IV) claim 1 , (V) or (VI) such as defined in claim 1 , or mixtures thereof claim 1 , and possibly at least one other polymer.12. The method according to claim 2 , wherein the matrix is poly(lactic acid).13. The composition according to claim 11 , wherein the other polymer is selected from poly(butadiene) claim 11 , poly(isoprene) claim 11 , poly(ε-caprolactone) claim 11 , poly(tetrahydrofuran) and poly(ricinoleic acid).14. The Adhesives claim 8 , surfactants claim 8 , films claim 8 , thermoplastic elastomers claim 8 , paints or fibers comprising compounds having the formula (V) according to .15. The Adhesives claim 9 , surfactants claim 9 , films claim 9 , thermoplastic elastomers claim 9 , paints or fibers comprising compounds having the formula (VI) according to . The object of the present invention relates to novel polymers, and in particular polyurethanes, polyesters and polyamides.The object of the present invention also relates to novel pre-polymers, as well as the methods of preparation thereof, and the use thereof ...

RADIATION CURABLE COMPOSITION

The present invention generally relates to the field of radiation curable compositions comprising (meth)acrylated acrylic polymers comprising pendant hydroxyl groups, methods for making these radiation curable compositions and their uses. In particular, the present invention refers to a radiation curable composition (X) comprising at least one (meth)acrylated acrylic polymer (AA) comprising pendant hydroxyl groups which is the reaction product of: a) At least one water-insoluble(meth)acrylic polymer (AP) comprising pendant hydroxyl groups which is the reaction product of: a1) at least one hydroxy functional ethylenically unsaturated monomer (AP1), and a2) at least one ethylenically unsaturated monomer (AP2) which is different from (AP1), and b) At least one isocyanate group-containing monoadduct (MA) comprising at least one (meth)acrylate group and which attaches to the water-insoluble(meth)acrylic polymer (AP) comprising pendant hydroxyl groups by an urethane linkage and which is the reaction product of: b1) at least one polyisocyanate (MA1), and b2) at least one hydroxy functional (meth)acrylate monomer (MA2), wherein the equivalent ratio of NCO groups to OH groups of the radiation curable composition (X) is from 1:0.5 to 1:10 and the glass transition temperature (Tg) of the radiation curable composition (X) after the acrylation is at least 10° C. 1. A radiation curable composition (X) comprising at least one (meth)acrylated acrylic polymer (AA) comprising pendant hydroxyl groups which is the reaction product of: a1) at least one hydroxy functional ethylenically unsaturated monomer (AP1), and', 'a2) at least one ethylenically unsaturated monomer (AP2) which is different from (AP1), and, 'a) At least one water-insoluble (meth)acrylic polymer (AP) comprising pendant hydroxyl groups which is the reaction product of b1) at least one polyisocyanate (MA1), and', 'b2) at least one hydroxy functional (meth)acrylate monomer (MA2),, 'b) At least one isocyanate group- ...

ADHESIVE COMPOSITION FOR OPTICAL USE AND ADHESIVE FILM FOR OPTICAL USE

The present invention relates to an adhesive composition for optical use, which is applied to optical devices or display devices and thus may exhibit excellent adhesion performance while exhibiting a high barrier performance based on a low water vapor transmission rate, and may implement both excellent optical characteristics and durability, and specifically, provides an adhesive composition for optical use, the adhesive composition including: a thermally curable rubber including an isobutylene-isoprene rubber having a carboxyl group and an isobutylene-isoprene rubber having a hydroxy group; and a thermal crosslinking agent. Further, the present invention provides an adhesive film for optical use, including an adhesive layer including photocured products of the adhesive composition for optical use. 1. An adhesive composition for optical use , comprising:a thermally curable rubber comprising an isobutylene-isoprene rubber having a carboxyl group and an isobutylene-isoprene rubber having a hydroxy group; anda thermal crosslinking agent.2. The adhesive composition of claim 1 , wherein a content of an isoprene unit of the isobutylene-isoprene rubber is 1 mol % or more and 30 mol % or less based on a total mole number of an isobutylene unit and an isoprene unit.3. The adhesive composition of claim 1 , wherein the carboxyl group and the hydroxy group are each grafted to the isoprene unit of the isobutylene-isoprene rubber.4. The adhesive composition of claim 1 , wherein the isobutylene-isoprene rubber having the carboxyl group and the isobutylene-isoprene rubber having the hydroxy group each have a degree of unsaturation of 0 to 1.0.5. The adhesive composition of claim 1 , wherein the isobutylene-isoprene rubber having the carboxyl group and the isobutylene-isoprene rubber having the hydroxy group each have a weight average molecular weight (Mw) of 10 claim 1 ,000 to 1 claim 1 ,000 claim 1 ,000.6. The adhesive composition of claim 1 , wherein a content of the carboxyl ...

PRESSURE SENSITIVE ADHESIVE COMPOSITION

Provided are a pressure-sensitive adhesive composition, a pressure-sensitive adhesive optical laminate, a pressure-sensitive adhesive polarizing plate and a display device. The pressure-sensitive adhesive composition offers a pressure-sensitive adhesive that has excellent durability and processability in manufacturing due to increased hardness even when the pressure-sensitive adhesive layer is formed thinner than a typical adhesive composition, and that can prevent a pressure mark and leakage of the pressure-sensitive adhesive, as well as a bending problem generated when applied on an optical member such as a polarizing plate, etc. 1. A pressure-sensitive adhesive composition , comprising:a pressure-sensitive adhesive polymer including a polymerization unit of a first monomer which forms a homopolymer having a glass transition temperature of less than 0° C., a polymerization unit of a second monomer which forms a homopolymer having a glass transition temperature of 0° C. or more, and a polymerization unit of a cross-linking monomer, and having an acid value of 1 mgKOH/g or less; anda cross-linking catalyst in an amount of 1 to 40 ppm,wherein the first monomer is an alkyl (meth)acrylate containing an alkyl group with 1 to 20 carbon atoms and the second monomer is an alkyl acrylate or vinyl acetate containing a straight-chain or branched-chain alkyl group with 1 to 6 carbon atoms, andwherein the pressure-sensitive adhesive polymer comprises the polymerization unit of the first monomer at 60 to 95 parts by weight, the polymerization unit of the second monomer at 1 to 40 parts by weight, and the polymerization unit of the cross-linking monomer at 0.1 to 10 parts by weight, andwherein the pressure-sensitive adhesive polymer has a weight average molecular weight ranging from 100,000 to 3,000,000, andwherein the pressure-sensitive adhesive composition has a storage modulus at 30° C. and 1 rad/sec ranging from 0.01 MPa to 0.5 MPa in a state in which a cross-linked structure ...

AQUEOUS ADHESIVE COMPOSITIONS

A latex emulsion that includes an aqueous carrier liquid and a latex copolymer formed from reactants comprising butyl methacrylate, wherein the reactants comprise at least 20 wt. % a vinyl monomer, based on the total weight of ethylenically unsaturated monomers in the latex copolymer. A homopolymer formed from the vinyl monomer preferably exhibits a glass transition temperature of between about −10° C. and about 30° C. A coating formed from the latex emulsion preferably exhibits a dry adhesion of greater than about 4 pounds per linear inch when applied between a thermoplastic polyolefin roofing membrane and a plywood roofing substrate at an average coat weight of about 6 lbs/100 ftand subjected to 180° peel testing according to ASTM D903 with a 2-inch per minute pull rate. The latex emulsion may include a second latex copolymer or stage, and may be used as part of an aqueous adhesive composition. 1. A composition comprising:an aqueous carrier liquid;a latex copolymer formed from reactants comprising a vinyl monomer having an alkyl group including between 2 and 20 carbon atoms, wherein the reactants comprise at least 20 wt. % of the vinyl monomer having an alkyl group including between 2 and 20 carbon atoms, based on the total weight of ethylenically unsaturated monomers used to make the latex copolymer, and wherein a homopolymer formed from the vinyl monomer exhibits a glass transition temperature of between about −10° C. and about 30° C.; and{'sup': '2', 'wherein a coating formed from the aqueous adhesive composition exhibits a dry adhesion of greater than about 4 pounds per linear inch when applied between a thermoplastic polyolefin roofing membrane and a plywood roofing substrate at an average coat weight of about 6 lbs/100 ftand subjected to 180° peel testing according to ASTM D903 with a 2-inch per minute pull rate.'}2. The composition of claim 1 , wherein the vinyl monomer comprises butyl methacrylate claim 1 , ethylhexyl methacrylate claim 1 , VeoVa™ 10 claim ...

Optical adhesive sheet, polarizing film with adhesive layer and liquid crystal display device

An optical adhesive sheet having a lamination structure includes a first adhesive layer, a second adhesive layer, and a substrate located between the first and the second adhesive layers. The first adhesive layer has a thickness of 30 μm or more and a storage modulus of 1.0×10 4 Pa or more at 95° C. The second adhesive layer has a loss tangent of 0.08 or more at 95° C. A polarizing film having a lamination structure including a polarizing film and the optical adhesive sheet. A liquid crystal display device having a multilayer structure including a resin-made covering member, a liquid crystal panel, and the optical adhesive sheet. In the liquid crystal display device, the optical adhesive sheet is attached to the resin-made covering member on the side of the first adhesive layer and attached to the polarizing film of the liquid crystal panel on the side of the second adhesive layer.

Two Part Adhesive Composition

The present disclosure relates to an acrylic adhesive composition exhibiting excellent lap shear strength and adhesive strength by including an adhesion enhancer of a specific component. 1. A two-part adhesive composition , comprising: (i) a first part containing the following components (a1) to (a4); and (ii) a second part containing the following components (b1) and (b2) in a weight ratio of 1:1 to 20:1:(i)(a1) 100 parts by weight of a (meth)acrylate-based monomer, and based thereon,(a2) 5 to 70 parts by weight of a styrene-acrylonitrile copolymer;(a3) 50 to 100 parts by weight of an adhesion enhancer; and(a4) 1 to 10 parts by weight of a filler,(ii)(b1) 100 parts by weight of an epoxy resin, and based thereon,(b2) 50 to 150 parts by weight of an initiator.2. The two-part adhesive composition of claim 1 ,wherein the (meth)acrylate-based monomer comprises an alkyl (meth)acrylate compound and a (meth)acrylate compound containing at least one hydroxyl group in the molecule.3. The two-part adhesive composition of claim 2 ,wherein the alkyl (meth)acrylate is selected from the group consisting of methyl methacrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, t-butyl (meth)acrylate, sec-butyl (meth)acrylate, pentyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-octyl (meth)acrylate, isooctyl (meth)acrylate, isononyl (meth)acrylate, lauryl (meth)acrylate, and tetradecyl (meth)acrylate.4. The two-part adhesive composition of claim 2 ,wherein the (meth)acrylate compound containing at least one hydroxyl group in the molecule is selected from the group consisting of 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 2-hydroxyethylene glycol (meth)acrylate, and 2-hydroxypropylene glycol (meth)acrylate.5. The two-part adhesive composition of claim 1 ,wherein the adhesion enhancer comprises at least one selected from the group consisting of a vinyl terminated butadiene rubber, a ...

ADHESIVE COMPOSITION, ADHESIVE FILM PREPARED FROM THE SAME AND DISPLAY MEMBER INCLUDING THE SAME

An adhesive film has an average slope of about −9.9 to about 0, as measured over a temperature range of about −20° C. to about 80° C. in a graph depicting a temperature-dependent storage modulus distribution of the adhesive film where the x-axis represents temperature (° C.) and the y-axis represents storage modulus (kPa). The adhesive film also has a storage modulus at about 80° C. of about 10 kPa to about 1,000 kPa. 1. An adhesive film having an average slope of −9.9 to 0 , as measured over a temperature range of −20° C. to 80° C. in a graph of storage modulus versus temperature in which the x-axis represents temperature (° C.) and the y-axis represents the storage modulus (kPa) , the adhesive film having a storage modulus at 80° C. of 10 kPa to 1 ,000 kPa , andthe adhesive film being formed from an adhesive composition comprising a monomer mixture configured to form a hydroxyl group-containing (meth)acrylic copolymer.2. The adhesive film according to claim 1 , wherein the average slope is −5 to 0.3. The adhesive film according to claim 1 , wherein the average slope is −3 to 0.4. The adhesive film according to claim 1 , wherein the average slope is −0.6 to 0.5. The adhesive film according to claim 1 , wherein the adhesive film has a T-peel strength of about 200 gf/in to about 3 claim 1 ,000 gf/in claim 1 , as measured at 25° C. with respect to a non-corona-treated polyethylene terephthalate (PET) film claim 1 , and the adhesive film has a T-peel strength of about 100 gf/in to about 2 claim 1 ,000 gf/in claim 1 , as measured at 60° C. with respect to a non-corona-treated polyethylene terephthalate (PET) film.6. The adhesive film according to claim 1 , wherein the adhesive film has a T-peel strength of about 400 gf/in to about 4 claim 1 ,000 gf/in claim 1 , as measured at 25° C. with respect to a corona-treated polyethylene terephthalate (PET) film.7. The adhesive film according to claim 1 , wherein the adhesive film has a T-peel strength of about 200 gf/in to about ...

ELECTRON BEAM CURABLE PRESSURE SENSITIVE ADHESIVE COMPRISING ACRYLIC POLYMER WITH BOUND VINYL GROUP

The invention relates to a process for making e-Beam curable pressure sensitive adhesive compositions by derivatizing an acrylic polymer having one or more hydroxy groups or one or more acid groups with a derivatizing agent prepared from a hydroxy-functional acrylate monomer and a diisocyanate. The pressure sensitive adhesive can be effectively cured without a photoinitiator or reactive diluent. Also disclosed are e-Beam curable pressure sensitive adhesives made with the derivatizing agent and methods for adhering substrates with the pressure sensitive adhesive compositions. 1. A process for making an electron beam (“e-Beam”) curable pressure sensitive adhesive (“PSA”) comprising the steps of derivatizing an acrylic polymer having one or more hydroxy groups or one or more acid groups with a derivatizing agent prepared from a hydroxy-functional acrylate monomer and a diisocyanate , and curing the PSA with exposure to an e-Beam.2. The process of claim 1 , wherein the ratio of hydroxy-functional acrylate monomer to diisocyanate is greater than 1:1.3. The process of claim 1 , wherein the PSA comprises no photoinitiator.4. The process of any one of claim 1 , wherein the acrylic polymer has a molecular weight of about 40 claim 1 ,000 to about 150 claim 1 ,000 Daltons.5. The process of claim 4 , wherein the acrylic polymer has a molecular weight of about 40 claim 4 ,000 to about 100 claim 4 ,000 Daltons.6. The process of claim 1 , wherein the acrylic polymer is polymerized by a monomer selected from the group consisting of 2-ethylhexyl acrylate claim 1 , iso-octyl acrylate claim 1 , iso-decyl acrylate claim 1 , lauryl acrylate claim 1 , n-butyl acrylate and combinations thereof;and at least one backbone hydroxyl-functional monomer.7. The process of claim 1 , wherein the acrylic polymer is polymerized by a monomer selected from the group consisting of 2-ethylhexyl acrylate claim 1 , iso-octyl acrylate claim 1 , iso-decyl acrylate claim 1 , lauryl acrylate claim 1 , n-butyl ...

Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive sheet, optical component, and touch panel

Provided are an optical component having an excellent corrosion inhibition effect while achieving a high level of adhesion reliability and transparency, and pressure-sensitive adhesive composition and sheet that can produce such an optical component efficiently at a low cost. The pressure-sensitive adhesive composition according to the present invention includes a rust inhibitor, and a mixture of at least one monomer component for constituting a base polymer or a partially polymerized product of a mixture of at least one monomer component for constituting a base polymer. The monomer component includes no or substantially no acid group-containing monomer. The pressure-sensitive adhesive composition contains no or substantially no organic solvent. The pressure-sensitive adhesive sheet has a pressure-sensitive adhesive layer formed from such pressure-sensitive adhesive composition.

PRESSURE-SENSITIVE ADHESIVE COMPOSITION

Provided are a pressure-sensitive adhesive composition, a protective film, an optical device, and a display device. The pressure-sensitive adhesive composition may exhibit excellent storage stability, suitable low speed and high speed peel-off strengths after forming a crosslinking structure, and have an excellent balance between them. Accordingly, the pressure-sensitive adhesive composition may exhibit an excellent protective effect when applied to a protective film, may be easily peeled in a high speed peel-off and thus advantageous for a high speed process, and may exhibit an excellent antistatic characteristic. 2. The pressure sensitive adhesive composition according to claim 1 , wherein the nitrogen-containing monomer is dialkyl (meth)acrylamide.3. The pressure sensitive adhesive composition according to claim 1 , wherein the polymer comprises a polymerization units of 0.1 to 6.0 parts by weight of the monomer of Formula 1 claim 1 , 1 to 30 parts by weight of the nitrogen-containing monomer claim 1 , 0.1 to 15 parts by weight of the first monomer and 0.1 to 5 parts by weight of the second monomer.5. The pressure sensitive adhesive composition according to claim 4 , wherein claim 4 , in Formula 3 claim 4 , Ris a hydrogen atom claim 4 , an alkyl group having 1 to 8 carbon atoms claim 4 , or an alkoxy group having 4 to 16 carbon atoms claim 4 , Rand Rare each independently an alkyl group having 1 to 12 carbon atoms claim 4 , and L is claim 4 , for example claim 4 , an alkylene group having 4 to 12 carbon atoms or an alkylidene group having 2 to 10 carbon atoms.6. The pressure sensitive adhesive composition according to claim 4 , wherein the compound of Formula 3 is bis(1 claim 4 ,2 claim 4 ,2 claim 4 ,6 claim 4 ,6-pentamethyl-4-piperidyl)sebacate claim 4 , methyl 1 claim 4 ,2 claim 4 ,2 claim 4 ,6 claim 4 ,6-pentamethyl-4-piperidyl sebacate claim 4 , propanedioic acid 2- l [[3 claim 4 ,5-bis (1 claim 4 ,1-dimethylethyl)-4-hydroxyphenyl]methyl]-2-butyl- 1 claim 4 , ...

ADHESIVE HYDROGELS AND USES THEREOF

Adhesive hydrogels comprising a (co)polymer matrix, wherein the adhesive hydrogel comprises at least one rough surface as well as processes for preparing such hydrogels are disclosed. 1. An adhesive hydrogel comprising a (co)polymer matrix , wherein the adhesive hydrogel comprises at least one rough surface.2. The adhesive hydrogel of claim 1 , wherein the adhesive hydrogel further comprises at least one smooth surface.3. The adhesive hydrogel of claim 1 , wherein the adhesive hydrogel comprises two rough surfaces.4. The adhesive hydrogel of claim 3 , wherein each of the two rough surfaces are situated on opposites sides of the adhesive hydrogel to each other.5. The adhesive hydrogel of claim 1 , wherein the (co)polymer matrix comprises a biocompatible (co)polymer.6. The adhesive hydrogel of claim 5 , wherein the biocompatible (co)polymer is a homopolymer or copolymer of 2-hydroxyethyl methacrylate.7. The adhesive hydrogel of claim 6 , wherein the biocompatible (co)polymer is a copolymer of 2-hydroxyethyl methacrylate and poly(ethylene glycol) diacrylate.8. The adhesive hydrogel of claim 2 , wherein the root mean square roughness of the at least one rough surface is at least one order of magnitude higher than the root mean square roughness of the at least one smooth surface.9. A process for preparing the adhesive hydrogel of claim 2 , comprising the steps of:(1) providing a reaction mixture comprising at least one monomer and water;(2) charging a container comprising a smooth interior surface with a volume of the reaction mixture, such that the volume of the reaction mixture is less than the volume of the container; and(3) covering the charged container with a lid and polymerizing the at least one monomer in the presence of the water to obtain the adhesive hydrogel comprising at least one rough surface and at least one smooth surface.10. A process for preparing the adhesive hydrogel of claim 3 , comprising the steps of:(1) providing a reaction mixture comprising at ...

Adhesive Composition, Adhesive Film Comprising Same, Backplate Film Comprising Adhesive Film, and Plastic Organic Light-Emitting Display Comprising Adhesive Film

The present application relates to an adhesive composition comprising a (meth)acrylate-based resin and a polymer having a melting temperature (Tm) of 35° C. or higher, an adhesive film comprising a base film and an adhesive sheet comprising the adhesive composition, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film.

OPTICAL DISPLAY COMPRISING AN ADHESIVE FILM

An adhesive film and an optical display, the adhesive film being prepared from an adhesive composition that includes a (meth)acrylic copolymer, wherein the adhesive film has an elongation of about 750% to about 3,000%, and satisfies the following Equation 1: 110.-. (canceled)11. An optical display comprising an adhesive film prepared from an adhesive composition that includes a (meth)acrylic copolymer , {'br': None, 'i': 'PB/PY', '=about 3.0 to about 20,\u2003\u2003[Equation 1]'}, 'wherein the adhesive film has an elongation of about 750% to about 3,000%, and satisfies the following Equation 1wherein PB is a break point in gf of the adhesive film and PY is a yield point in gf of the adhesive film.12. The optical display as claimed in claim 11 , wherein the adhesive film has an elongation of about 750% to about 1 claim 11 ,500%.13. The optical display as claimed in claim 11 , wherein the adhesive film satisfies the following Equation 1:{'br': None, 'i': 'PB/PY', '=about 3.0 to about 5.0,\u2003\u2003[Equation 1]'}wherein PB is a break point in gf of the adhesive film and PY is a yield point in gf of the adhesive film.14. The optical display as claimed in claim 11 , wherein the adhesive film has a yield point of about 60 gf to about 120 gf claim 11 , and a break point of about 220 gf to about 380 gf.15. The optical display as claimed in claim 11 , wherein the adhesive composition further includes a crosslinking agent claim 11 , the crosslinking agent comprising a bi-functional urethane (meth)acrylate claim 11 , and an initiator.16. The optical display as claimed in claim 11 , wherein the (meth)acrylic copolymer is prepared from a monomer mixture that includes about 20 wt % to about 80 wt % of an alkyl group-containing (meth)acrylic monomer claim 11 , and about 20 wt % to about 80 wt % of a hydroxyl group-containing (meth)acrylic monomer claim 11 , all wt % being based on a total weight of the monomer mixture.17. The optical display as claimed in claim 11 , wherein the ...