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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 8538. Отображено 100.
26-04-2012 дата публикации

Optical pressure-sensitive adhesive sheet, optical film and display device

Номер: US20120100359A1
Автор: Hiroaki Fumoto, Hiroaki Kishioka, Masatomo Natsui
Принадлежит: Nitto Denko Corp

The present invention provides an optical pressure-sensitive adhesive sheet in which white turbidity is not caused by humidification and durability is excellent as well. The present invention provides an optical pressure-sensitive adhesive sheet, comprising: a pressure-sensitive adhesive layer in which a moisture ratio after storage under an environment of 60° C. and 95% RH for 120 hours is 0.65 wt % or more, and a shear storage elastic modulus at 85° C. which is measured by a dynamic viscoelastic measurement is 5.0×10 4 to 5.0×10 5 Pa, wherein a peeling distance measured by the constant-load peel test is 30 mm or less when an adherend is a polyethylene terephthalate plate, and the peeling distance measured by the following constant-load peel test is 30 mm or less when the adherend is an acrylic plate.

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Номер записи: 1
18-10-2012 дата публикации

Pressure-sensitive adhesive dispersion comprising polymers with ureido groups or with ureido-analogous groups and prepared by stage polymerization

Номер: US20120261070A1
Автор: Dirk Wulff, Matthias Gerst, Thomas Christ
Принадлежит: BASF SE

A description is given of a pressure-sensitive adhesive dispersion comprising a water-dispersed polymer P1 formed by emulsion polymerization. The polymer P1 is formed from a monomer mixture comprising (a) at least 40% by weight of C4 to C20 alkyl (meth)acrylates which when polymerized as homopolymers have a glass transition temperature of −30° C. or less, (b) at least 0.05% by weight of (meth)acrylate monomers having a substituent of the formula where X is CH 2 , O, NH or NR and R is a C1 to C4 alkyl group, (c) at least 0.1% by weight of acid monomers. The polymer P1 is prepared by polymerization in at least 2 stages, the glass transition temperature of a polymer from monomers of the first stage being lower by at least 20° C. than the glass transition temperature of a polymer from monomers of a later, second stage.

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Номер записи: 2
01-11-2012 дата публикации

Adhesive Compositions For Easy Application and Improved Durability

Номер: US20120277341A1
Автор: Gary Allan McMaster, Timothy Michael Smith
Принадлежит: Curwood Inc

The present invention is directed to an adhesive composition comprising a crosslinkable acrylic copolymer, a multi-functionalized crosslinkable oligomer and a photoinitiator wherein the partially cured composition exhibits excellent wet out characteristics as reflected in a tan delta value of at least 0.4, preferably greater than 0.5, more preferable greater than 0.6 as measured at 20° C. resulting from a first curing stage, and the fully cured composition exhibits an improved stiffness and temperature resistance as reflected in a storage elastic modulus of at least 175,000 Pa at 20° C. and a shear adhesion failure temperature of at least 425° F. (218.3° C.) at 1 Kg/in 2 (0.155 Kg/cm 2 ), respectively, which result from a second sequential curing stage.

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Номер записи: 3
08-11-2012 дата публикации

Cloud point-resistant adhesives and laminates

Номер: US20120282479A1
Автор: Albert I. Everaerts, Jianhui Xia
Принадлежит: 3M Innovative Properties Co

Optically clear adhesives and laminates that include the adhesives are provided. The adhesives and laminates remain haze-free and are cloud point-resistant when placed in environments of high humidity and elevated temperature. The adhesives and laminates are useful in optical electronic display applications.

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Номер записи: 4
06-12-2012 дата публикации

Method for producing thermally-conductive adhesive sheet

Номер: US20120309879A1
Автор: Junichi Nakayama, Kenji Furuta, Takashi Wano, Yoshio Terada
Принадлежит: Nitto Denko Corp

Provided is a method for producing a thermally-conductive adhesive sheet including a thermally-conductive adhesive agent layer by performing: a composition preparation step of preparing a thermally-conductive adhesive agent composition including a thermally-conductive particle and an acrylic polymer component; and an adhesive agent layer formation step of forming a sheet-shaped thermally-conductive adhesive agent layer with the thermally-conductive adhesive agent composition, wherein in the composition preparation step, a cyclic organic compound of 8 or less carbon atoms, or an organic compound of 3 or less carbon atoms having a hydroxy, ketone, aldehyde, carboxyl or nitrile group is mixed as a constitutional component of the thermally-conductive adhesive agent composition.

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Номер записи: 5
03-01-2013 дата публикации

Acrylic pressure-sensitive adhesive composition for optical use and acrylic pressure-sensitive adhesive tape for optical use

Номер: US20130005910A1
Автор: Jun Akiyama, Kiyoe Shigetomi, Masahito Niwa, Masato Yamagata, Masayuki Okamoto
Принадлежит: Nitto Denko Corp

An acrylic pressure-sensitive adhesive composition for optical use includes: an acrylic polymer (A) that contains, as a monomer unit, a vinyl monomer having a nitrogen atom in its backbone and that does not substantially contain a carboxyl group-containing monomer; and a (meth)acrylic polymer (B) having a weight average molecular weight of 1000 or more and less than 30000.

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Номер записи: 6
07-02-2013 дата публикации

Display panel assembly and methods of making same

Номер: US20130034713A1
Автор: Audrey A. Sherman, David Scott Thompson, Patricia Tien, Robert S. Davidson, Stanley C. Busman
Принадлежит: 3M Innovative Properties Co

A display panel assembly is made by optically bonding a display panel and a substantially transparent substrate. Optical bonding is carried out by forming an optical bonding layer having regions of different physical properties.

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Номер записи: 7
14-02-2013 дата публикации

Adhesive composition, adhesive film including the same, method of preparing adhesive film, and display member using the same

Номер: US20130040123A1
Автор: Ik Hwan Cho, In Cheon Han
Принадлежит: Cheil Industries Inc

A UV curable adhesive composition includes a morpholine group-containing (meth)acrylic copolymer.

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Номер записи: 8
28-02-2013 дата публикации

Acrylic pressure-sensitive adhesives with acylaziridine crosslinking agents

Номер: US20130053508A1
Автор: Babu N. Gaddam, Belma Erdogan-Haug, Larry R. Krepski, Maureen A. Kavanagh
Принадлежит: 3M Innovative Properties Co

A pre-adhesive composition is described comprising an acid-functional (meth)acrylate copolymer and an acylaziridine crosslinking agent, which when crosslinked provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles.

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Номер записи: 9
25-04-2013 дата публикации

EASY-ADHESIVE FOR SOLAR CELL REAR SURFACE PROTECTION SHEET, SOLAR CELL REAR SURFACE PROTECTION SHEET, AND SOLAR CELL MODULE

Номер: US20130098441A1
Автор: Maeda Satoshi, UMEZAWA Mitsuo, Yaginuma Masaki, Yamaguchi Hiroshi, YANAGISAWA Makoto
Принадлежит:

To overcome a problem in related art and to provide an easy-adhesive having an excellent adhesive property and an excellent adhesive durability for a solar cell rear surface protection sheet, a solar cell rear surface protection sheet, and a solar cell module formed by using the solar cell rear surface protection sheet. An easy-adhesive for a solar cell rear surface protection sheet according to the present invention exhibits a specific glass transition temperature, a specific number average molecular weight, and a specific hydroxyl value Further, the easy-adhesive for a solar cell rear surface protection sheet contains a (meth)acrylic-based copolymer (A) having no (meth)acryloyl group (A), a compound having a (meth)acryloyl group, and a polyisocyanate compound (C) at a specific rate. 1. An easy-adhesive for a solar cell rear surface protection sheet , comprising:a (meth)acrylic-based copolymer (A) having a glass transition temperature of 10-60° C., a number average molecular weight of 25,000-250,000, and a hydroxyl value of 2-100 (mgKOH/g), and containing no (meth)acryloyl group;a compound containing a (meth)acryloyl group(s) (B); anda polyisocyanate compound (C), the polyisocyanate compound (C) being contained in such an amount that a number of an isocyanate group is 0.1-5 for every one hydroxyl group contained in the (meth)acrylic-based copolymer (A).2. The easy-adhesive for a solar cell rear surface protection sheet according to claim 1 , wherein the compound containing the (meth)acryloyl group(s) (B) is contained in an amount of 0.1-20 wt.pts. based on 100 wt.pts. of the (meth)acrylic-based copolymer containing no (meth)acryloyl group (A).3. The easy-adhesive for a solar cell rear surface protection sheet according to claim 1 , wherein the polyisocyanate compound (C) is a blocked polyisocyanate compound (C1).4. The easy-adhesive for a solar cell rear surface protection sheet according to claim 1 , wherein the compound containing the (meth)acryloyl group(s) (B) ...

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Номер записи: 10
25-04-2013 дата публикации

Polymeric adhesive for anchoring compliant materials to another surface

Номер: US20130103157A1
Автор: Chang Daniel, Hartdegen Vernon, Jaasma Michael J., Kourtis Lampros, Myung David, Sun Timothy, Yu Bing
Принадлежит:

Methods, compositions, and kits for adhering polymers and other materials to another material, and in particular to bone or bone-like structures or surfaces. A composition of matter includes a urethane dimethacrylate-methyl methacrylate copolymer with a plurality of first polymer regions based on urethane dimethacrylate and a plurality of second polymer regions based on methyl methacrylate. The method includes placing an orthopedic joint implant having an attachment surface in a joint space, applying a first non-urethane-containing precursor, a second urethane-containing precursor, and a initiator to the attachment surface; contacting the first and second precursors and the initiator with the joint surface; and copolymerizing the first and second precursors and forming an adhesive copolymer and attaching the implant to the joint. 1. A composition of matter comprising a urethane dimethacrylate-methyl methacrylate copolymer comprising a plurality of first polymer regions based on urethane dimethacrylate and a plurality of second polymer regions based on methyl methacrylate.2. The composition of wherein the first polymer regions based on urethane dimethacrylate comprise about 60%-99% (w/w) of the copolymer and the second polymer regions based on methyl methacrylate comprise about 1%-40% (w/w) of the copolymer.3. The composition of wherein the first polymer regions based on urethane dimethacrylate comprise about 60%-80% (w/w) of the copolymer and the second polymer regions based on methyl methacrylate comprise from about 20%-40% (w/w) of the copolymer.4. The composition of wherein the first polymer regions based on urethane dimethacrylate comprise soft segments based on poly(tetramethyl) glycol claim 1 , the soft segments having a molecular weight between about 100 Da and about 5000 Da.5. The composition of wherein the urethane dimethacrylate-methyl methacrylate copolymer defines a compressive modulus between about 30 MPa and about 2000 MPa.6. The composition of wherein ...

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Номер записи: 11
02-05-2013 дата публикации

Adhesive Compositions and Methods

Номер: US20130109801A1
Автор: Coffey James Norris, Horne-Campbell Lynette Eileen, Shipley Fran A
Принадлежит:

Compositions are disclosed comprising (i) a high molecular weight base polymer, and (ii) a relatively low molecular weight ester copolymer comprising an olefin and a copolymerizable ester, wherein the ester copolymer has a pour point less than 40° C. In certain embodiments, the high molecular weight base polymer and the relatively low molecular weight ester copolymer are both selected from ethylene-based copolymers such as ethylene-vinyl acetate and ethylene-n-butyl acrylate. 1. A composition comprising:a base polymer; andan ester copolymer comprising an olefin and a copolymerizable ester, wherein the ester copolymer has a pour point less than 40° C.2. The composition of claim 1 , wherein the base polymer is a solid at 50° C.3. The composition of claim 1 , wherein the base polymer has a peak melting point greater than 50° C.4. The composition of any one of to claim 1 , wherein the base polymer has a melt index from 0.1 g/10 minutes to 3 claim 1 ,000 g/10 min.5. The composition of any one of to claim 1 , wherein the base polymer has a melt index from 0.1 g/10 minutes to 2 claim 1 ,000 g/10 min.6. The composition of any one of to claim 1 , wherein the base polymer has a melt index from 0.1 g/10 minutes to 1 claim 1 ,000 g/10 min.7. The composition of any one of the preceding claims claim 1 , wherein the base polymer comprises a first olefin and a first copolymerizable ester wherein the base polymer has a peak melting point greater than 50° C.; and wherein the ester copolymer comprises a second olefin and a second copolymerizable ester claim 1 , wherein the first and second olefins can be the same or different claim 1 , wherein the first and second copolymerizable esters can be the same or different claim 1 , and wherein the ester copolymer has a pour point less than 40° C.8. The composition of any one of the preceding claims claim 1 , wherein the viscosity at 177° C. of the composition is less than 95% of the viscosity without incorporating the ester copolymer.9. The ...

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Номер записи: 12
16-05-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20130123417A1
Автор: Nonaka Takahiro, Takarada Shou
Принадлежит: NITTO DENKO CORPORATION

A pressure-sensitive adhesive sheet excellent in the resistance to clouding caused by humidification, and excellent in the level difference absorbability, in particular, in the level difference absorbability for a high level difference is provided. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes an acrylic polymer obtained by polymerizing monomer components; the monomer components includes alkyl (meth)acrylate having a linear or branched alkyl group having 10 to 16 carbon atoms and a hydrophilic monomer; the content of the alkyl (meth)acrylate is 30% by weight or more in relation to the total amount (100% by weight) of the monomers; and the content of the hydrophilic monomer is 10% by weight or more in relation to the total amount (100% by weight) of the monomers. 1. A pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer ,wherein the pressure-sensitive adhesive layer includes an acrylic polymer obtained by polymerizing monomer components;the monomer components include an alkyl (meth)acrylate having a linear or branched alkyl group having 10 to 16 carbon atoms and a hydrophilic monomer,the content of the alkyl (meth)acrylate is 30% by weight or more in relation to the total amount (100% by weight) of the monomer components; andthe content of the hydrophilic monomer is 10% by weight or more in relation to the total amount (100% by weight) of the monomer components.2. The pressure-sensitive adhesive layer according to claim 1 , wherein the content of the acrylic polymer is 50% by weight or more.3. The pressure-sensitive adhesive sheet according to claim 1 , wherein the gel fraction of the pressure-sensitive adhesive layer is 40 to 85% by weight and the shear storage modulus at 23° C. of the pressure-sensitive adhesive layer is 1.0×10Pa.4. The pressure-sensitive adhesive sheet according to ...

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Номер записи: 13
06-06-2013 дата публикации

LINERLESS LABEL

Номер: US20130143010A1
Автор: Büchner Jörg, Dijkstra Dirk, Kraus Harald, Nazaran Pantea
Принадлежит: Bayer Intellectual Property GmbH Creative Campus Monheim

The invention relates to an aqueous adhesive composition containing at least one acrylate polymer with a glass transition temperature Tg>50° C. and at least one amorphous polyurethane or polyurethane-polyurea polymer with a glass transition temperature Tg<+10° C., the use of the adhesive compositions for the manufacture of heat-activated adhesive layers, and planar formations containing adhesive layers based on the adhesive composition. 121-. (canceled)22. An aqueous adhesive composition comprising at least one acrylate polymer with a glass transition temperature in the range from 50° C. to 90° C. and at least one amorphous polyurethane or polyurethane-polyurea polymer with a glass transition temperature in the range from -50° C. to 10° C. , the glass transition temperature being determined by a DSC measurement according to DIN 65467 at a heating rate of 20 K/min.23. The aqueous adhesive composition of claim 22 , wherein the acrylate polymer has a glass transition temperature in the range from 50° C. to 80° C.24. The aqueous adhesive composition of claim 22 , wherein the amorphous polyurethane or polyurethane-polyurea polymer has a glass transition temperature in the range from −50° C. to +5° C.25. The aqueous adhesive composition of claim 22 , wherein the polyurethane or polyurethane-polyurea polymer has a weight average molecular weight Mw in the range from 15 claim 22 ,000 to 150 claim 22 ,000 g/mol.26. The aqueous adhesive composition of claim 22 , wherein the polyurethane or polyurethane-polyurea polymer in the dispersion has an average particle diameter in the range from 30 to 400 nm.27. The aqueous adhesive composition of claim 22 , wherein the acrylate polymer has a weight average molecular weight Mw in the range from 10to 10g/mol.28. The aqueous adhesive composition of claim 22 , wherein the acrylate polymer has an average particle diameter in the range from 40 to 200 nm.29. A method of manufacture of a heat-activated adhesive layer on a substrate which ...

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Номер записи: 14
06-06-2013 дата публикации

Liquid resin composition and semiconductor device

Номер: US20130143983A1
Автор: Kouji Makihara, Ryuichi Murayama
Принадлежит: Sumitomo Bakelite Co Ltd

According to the invention, a liquid resin composition which has favorable wet spreadability after mounting of a chip and exhibits excellent solder cracking resistance even in a high-temperature solder reflow process at about 260° C., i.e., even when being used in lead-free solder, and a semiconductor package using the liquid resin composition are provided. In the liquid resin composition of the invention, an acrylic copolymer having a radical polymerizable functional group contains alkyl(meth)acrylate as a constituent monomer having a linear or branched alkyl group having 6 to 9 carbon atoms in an amount of 10 wt % to 40 wt % of the entire constituent monomers.

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Номер записи: 15
06-06-2013 дата публикации

WATER-SOLUBLE PRESSURE SENSITIVE ADHESIVES

Номер: US20130143991A1
Автор: II Steven S., KANTNER
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A water-soluble pressure sensitive adhesive comprises a homogeneous blend comprising (a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof and (b) a non-volatile plasticizer comprising a monohydric or polyhydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10. The N-vinyl pyrrolidone copolymers comprise about 60% or less by weight N-vinyl pyrrolidone. 1. An adhesive comprising a homogeneous blend comprising:(a) a polymer selected from the group consisting of N-vinyl caprolactam homopolymers, N-vinyl pyrrolidone copolymers, and mixtures thereof, the N-vinylpyrrolidone copolymers comprising about 60% or less by weight N-vinyl pyrrolidone; and(b) a non-volatile plasticizer comprising a monohydric alcohol having hydrophilic-lipophilic balance of about 2 to about 10;wherein the plasticizer comprises from about 33% to about 80% by weight of the adhesive and the adhesive is pressure sensitive and water-soluble.2. The pressure sensitive adhesive of wherein the polymer comprises from about 35% to about 75% by weight of the pressure sensitive adhesive.3. The pressure sensitive adhesive of wherein the polymer is an N-vinyl caprolactam homopolymers.4. The pressure sensitive adhesive of wherein the polymer is an N-vinyl pyrrolidone copolymer.5. The pressure sensitive adhesive of claim 4 , wherein the polymer is selected from the group consisting of N-vinyl caprolactam/N-vinyl pyrrolidone copolymers and vinyl acetate/N-vinyl pyrrolidone copolymers claim 4 , the vinyl acetate/N-vinyl pyrrolidone copolymers comprising from about 20% to about 60% by weight N-vinyl pyrrolidone.6. The pressure sensitive adhesive of claim 5 , wherein the polymer is a copolymer of N-vinyl pyrrolidone and vinyl acetate comprising from about 30% to about 50% by weight N-vinyl pyrrolidone.7. The pressure sensitive adhesive of wherein the N-vinylpyrrolidone copolymers comprise about 30% or less by ...

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Номер записи: 16
20-06-2013 дата публикации

REMOVAL PRESSURE SENSITIVE ADHESIVE OF AQUEOUS EMULSION AND METHOD FOR PREPARING THE SAME

Номер: US20130157050A1
Автор: Ha Jae-Woung, KIM Young-Min, Lee Kum-Hyung, Song Kong-Ju
Принадлежит: LG CHEM, LTD.

Disclosed are a removal aqueous emulsion adhesive, as an aqueous adhesive, which is environmental-friendly, exhibits superior adhesive strength and heat resistance, and low removal noise and is free of ghosts, as compared to rubber-soluble adhesives, and is thus applicable to a variety of commercial labels including labels for cosmetics, medicine, foods, chemical products and promotion, as well as to adhesive sheets such as adhesive labels used for electric and electrical products that require heat resistance and absence of ghosts, and a method for preparing the same. 2. The adhesive according to claim 1 , wherein the (meth)acrylic acid ester monomer having an alkyl group having 1 to 14 carbon atoms (A)i) 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 claim 1 ,the monomer having a carboxyl group (A)ii) is at least one selected from the group consisting of anhydrous maleic acid, fumaric acid, crotonic acid, itaconic acid, acrylic acid and methacrylic acid, andthe monomer having a hydroxyl group (A)ii) is at least one selected from the group consisting of hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, hydroxybutyl (meth)acrylate, hydroxyhexyl (meth)acrylate, hydroxyoctyl (meth)acrylate, hydroxylauryl (meth)acrylate, and hydroxypropyl glycol (meth)acrylate.3. The adhesive according to claim 1 , wherein the rubber based resin (C) is at least one selected from the group consisting of styrene-butadiene rubbers (SBR) claim 1 , butadiene rubbers (BR) claim 1 , acrylonitrile-butadiene rubbers (NBR) claim 1 , chloroprene rubbers (CR) claim 1 , isoprene rubbers (IR) claim 1 , isobutylene-isoprene rubbers (IIR) claim 1 , ethylene-propylene rubbers (EPR) claim 1 , and ethylene ...

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Номер записи: 17
20-06-2013 дата публикации

OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20130158221A1
Автор: Banba Tomohide, FUMOTO Hiroaki, KISHIOKA Hiroaki, NATSUI Masatomo, Nonaka Takahiro, Suzuki Takashi, Takarada Shou
Принадлежит: NITTO DENKO CORPORATION

The present invention provides an optical pressure-sensitive adhesive sheet which can control the change in capacitance, which cause malfunction, when the optical pressure-sensitive adhesive sheet is applied to an optical member. The present invention provides an optical pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 2 to 8, and a dielectric tangent at a frequency of 1 MHz is more than 0 and 0.2 or less. 1. An optical pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer , wherein a relative dielectric constant at a frequency of 1 MHz is 2 to 8 , and a dielectric tangent at a frequency of 1 MHz is more than 0 and 0.2 or less.2. The optical pressure-sensitive adhesive sheet according to claim 1 , wherein the relative dielectric constant at a frequency of 1.0×10Hz is 60% or more of a relative dielectric constant at a frequency of 1.0×10Hz.3. The optical pressure-sensitive adhesive sheet according to claim 1 , wherein an absolute value of a difference between the dielectric tangent at a frequency of 1.0×10Hz and a dielectric tangent at a frequency of 1.0×10Hz is 0.15 or less.4. The optical pressure-sensitive adhesive sheet according to claim 1 , which has a thickness accuracy of 10% or less.5. The optical pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer is an acrylic pressure-sensitive adhesive layer.6. The optical pressure-sensitive adhesive sheet according to claim 5 , wherein the acrylic pressure-sensitive adhesive layer comprises claim 5 , as a base polymer claim 5 , an acrylic polymer formed from a component comprising claim 5 , as an essential monomer component claim 5 , alkyl (meth)acrylate having a straight-chain or branched alkyl group having 1 to 14 carbon atoms and/or alkoxyalkyl (meth)acrylate.7. The optical pressure-sensitive adhesive sheet according to claim 5 , wherein the ...

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Номер записи: 18
27-06-2013 дата публикации

ADHESIVE COMPOSITION FOR POLARIZING PLATE AND POLARIZING PLATE AND OPTICAL MEMBER INCLUDING ADHESIVE LAYER FORMED USING THE SAME

Номер: US20130165561A1
Автор: Chung Hae Ryong, JEONG Chul, JUNG Ri Ra, Kim Won, KIM Yi Eun
Принадлежит:

A polarizing plate and an optical member, the polarizing plate including an adhesive layer, the adhesive layer being prepared from an adhesive composition including a (meth)acrylic copolymer, a crosslinking agent, and a tackifier, the tackifier including an acrylic modified petroleum resin represented by Formula 1: 1. A polarizing plate comprising an adhesive layer , the adhesive layer being prepared from an adhesive composition including:a (meth)acrylic copolymer,a crosslinking agent, and {'br': None, 'R′—CO—O—R\u2003\u2003[Formula 1]'}, 'a tackifier, the tackifier including an acrylic modified petroleum resin represented by Formula 1{'sub': 1', '20', '6', '50, 'wherein R′ is a petroleum resin and R is a C-Calkyl group or a C-Caryl group.'}3. The polarizing plate as claimed in claim 2 , wherein each of Rto Rin Formula 2 is hydrogen and n is 0.4. The polarizing plate as claimed in claim 1 , wherein the acrylic modified petroleum resin has a softening point of about 50° C. to about 150° C.5. The polarizing plate as claimed in claim 1 , wherein the acrylic modified petroleum resin is present in the adhesive composition in an amount of about 0.1 to about 10 parts by weight claim 1 , based on 100 parts by weight of the (meth)acrylic copolymer.6. The polarizing plate as claimed in claim 1 , wherein the (meth)acrylic copolymer is a copolymer of a monomer mixture including a (meth)acrylic monomer having a hydroxyl group.7. The polarizing plate as claimed in claim 1 , wherein the (meth)acrylic copolymer is a copolymer of a monomer mixture including a vinyl monomer having a hydroxyl group and a vinyl monomer having a carboxylic acid group.8. The polarizing plate as claimed in claim 7 , wherein the monomer mixture includes:at least about 0.5 wt % of the vinyl monomer having a hydroxyl group, andat least about 0.1 wt % of the vinyl monomer having a carboxylic acid group.9. The polarizing plate as claimed in claim 1 , wherein:the (meth)acrylic copolymer is a copolymer of a ...

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Номер записи: 19
27-06-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE SHEET FOR GLASS PLATES

Номер: US20130165610A1
Автор: MIKI Kaori, NIWA Masahito
Принадлежит: NITTO DENKO CORPORATION

The present invention provides a pressure-sensitive adhesive sheet large in adhesive force when used for a surface of a glass member and capable of reducing the adhesive force to a degree allowing the occurrence of the cracking or breakage of the glass member to be suppressed when the sheet is peeled from the surface of the glass member. The pressure-sensitive adhesive sheet for glass plates of the present invention includes a pressure-sensitive adhesive layer including an acrylic polymer, wherein the content of the acrylic polymer in the pressure-sensitive adhesive layer is 30% by weight or more in relation to the total amount (100% by weight) of the pressure-sensitive adhesive layer; the acrylic polymer substantially includes no acidic functional group; the solvent-insoluble fraction of the pressure-sensitive adhesive layer is 50% or more; and the adhesive force to glass as determined by a specific method is 12.0 N or less. 1. A pressure-sensitive adhesive sheet for glass plates comprising a pressure-sensitive adhesive layer including an acrylic polymer ,wherein the content of the acrylic polymer in the pressure-sensitive adhesive layer is 30% by weight or more in relation to the total amount (100% by weight) of the pressure-sensitive adhesive layer;the acrylic polymer substantially comprises no acidic functional group;the solvent-insoluble fraction of the pressure-sensitive adhesive layer is 50% or more; andthe adhesive force to glass as determined by the following method is 12.0 N or less[Measurement Method of Adhesive Force to Glass]By using a pressure-sensitive adhesive sheet (width: 26 mm, length: 40 mm), a glass plateA (width: 50 mm, length: 100 mm, thickness: 0.7 mm) and a glass plate B (width: 26 mm, length: 760 mm, thickness: 1.0 mm) are laminated on each other to yield a laminate in such a way that: the size of the adhesion portion is 26 mm in width and 40 mm in length; the lengthwise direction of the pressure-sensitive adhesive sheet, the lengthwise ...

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Номер записи: 20
11-07-2013 дата публикации

TWO-PART, CYANOACRYLATE /CATIONICALLY CURABLE ADHESIVE SYSTEMS

Номер: US20130178560A1
Автор: Barnes Rory B., Burns Barry N., Guthrie John, HERSEE Rachel M., Tully Ray P.
Принадлежит: Henkel Ireland Limited

Two part cyanoacrylate/cationically curable adhesive systems, are provided. 1. A two part curable composition comprising:(a) a first part comprising a cyanoacrylate component and a cationic catalyst; and(b) a second part comprising a cationic curable component, wherein when mixed together the cationic catalyst initiates cure of the cationic curable component.2. The composition of claim 1 , wherein the cyanoacrylate component comprises HC═C(CN)—COOR claim 1 , wherein R is selected from alkyl claim 1 , alkoxyalkyl claim 1 , cycloalkyl claim 1 , alkenyl claim 1 , aralkyl claim 1 , aryl claim 1 , allyl and haloalkyl groups.3. The composition of claim 1 , wherein the cationic catalyst comprises salts of lithium and metals from Group II of the Periodic Table claim 1 , and non-nucleophilic acids.4. The composition of claim 1 , wherein the cationic catalyst is a non-nucleophilic acid having a pH of less than 1.0 when measured as a 10% by weight solution in water.5. The composition of claim 1 , wherein the cationic catalyst is a member selected from the group consisting of fluoroboric claim 1 , fluoroarsenic claim 1 , fluoroantimonic and fluorophosphoric acids; lithium tetrafluoroborate claim 1 , calcium di-tetrafluoroborate claim 1 , magnesium di-tetrafluoroborate claim 1 , lithum hexafluorophosphate claim 1 , calcium di-hexafluorophosphate claim 1 , magnesium di-hexafluorophosphate claim 1 , lithium hexafluoroantimonate and lithium hexafluoroarsenate; lanthanide triflate salts claim 1 , aryl iodonium salts claim 1 , aryl sulfonium salts claim 1 , lanthanum triflate claim 1 , ytterbium triflate claim 1 , trimethoxyboroxine claim 1 , trimethoxyboroxine-aluminum acetyl acetonate claim 1 , amine-boron trihalide complexes claim 1 , quaternary ammonium salts claim 1 , quaternary phosphonium salts claim 1 , tri-aryl sulfonium salts claim 1 , di-aryl iodonium salts claim 1 , and diazonium salts; trialkoxyboroxine curing agents; and combinations thereof.6. The composition of claim ...

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Номер записи: 21
11-07-2013 дата публикации

PHOTOCURABLE DICING DIE BONDING TAPE

Номер: US20130178585A1
Автор: Becker Kevin Harris, Chiang Pauline, LEE Byoungchul
Принадлежит: Henkel Corporation

A pressure sensitive adhesive comprising (A) pressure sensitive adhesive polymers having pendant carbon-carbon unsaturation and (B) hydrophobic polymers terminated with carbon-carbon unsaturation. In one embodiment the hydrophobic polymers are vinyl terminated polydimethoxyl siloxane polymers and/or vinyl terminated fluoropolymers reduces the interaction of the pressure sensitive adhesive with adherends and provides excellent release of the pressure sensitive adhesive after cure. 1. A pressure sensitive adhesive composition comprising:(A) pressure sensitive adhesive polymers having pendant carbon-carbon unsaturation, and(B) hydrophobic polymers terminated with carbon-carbon unsaturation.2. The pressure sensitive adhesive composition of in which the pressure sensitive adhesive polymers (A) have a polyethylenic backbone and at least one pendant acryloyl urethane group.3. The pressure sensitive adhesive composition of in which the hydrophobic polymers (B) are vinyl terminated siloxane polymers and/or vinyl terminated fluoropolymers.4. The pressure sensitive adhesive composition of further comprising a polyisocyanate in an amount effective to partially crosslink the (A) and (B) polymers of the composition.5. The pressure sensitive adhesive composition of in which the polyisocyanate is selected from the group consisting of diisophorone claim 4 , toluene diisocyanate claim 4 , diphenylmethane diisocyanate claim 4 , and 1 claim 4 ,5-naphthalene diisocyanate. This invention relates to a photocurable pressure sensitive adhesive coated on a polyolefin base film that is used in the manufacture of semiconductor devices.A semiconductor wafer, such as one prepared from silicon or gallium arsenide, is initially manufactured in a size larger than is used for the individual semiconductors. The wafer is typically thinned by grinding, and cut into small individual semiconductor dies, which are then transferred and adhered to the desired substrates. To support the wafer during these ...

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Номер записи: 22
18-07-2013 дата публикации

Highly Tackified, Hot Melt Processable, Acrylate Pressure Sensitive Adhesives

Номер: US20130184394A1
Автор: Ellis Mark F., Fong Nathan B., Hamer Craig E., Jacobsen John R., Lehmann Megan P., Satrijo Andrew
Принадлежит:

The methods of preparing hot melt processable pressure sensitive adhesives include combining an elastomeric (meth)acrylate random copolymer contained within a thermoplastic pouch and greater than 50 parts by weight per 100 parts by weight of hot melt processable elastomeric (meth)acrylate random co-polymer of at least one tackifying resin in a hot melt mixing apparatus, and mixing to form a hot melt processable pressure sensitive adhesive. The elastomeric (meth)acrylate random copolymer may contain branching agents and photosensitive crosslinking agents. The hot melt processable pressure sensitive adhesives can be used to prepare transfer tapes. 1. A method of preparing an adhesive comprising:providing a hot melt mixing apparatus;providing a hot melt processable elastomeric (meth)acrylate random co-polymer contained within a thermoplastic pouch, wherein the (meth)acrylate random co-polymer comprises at least 10 wt % of the adhesive formulation;providing greater than 50 parts by weight per 100 parts by weight of hot melt processable elastomeric (meth)acrylate random co-polymer of at least one tackifying resin;mixing the hot melt processable elastomeric (meth)acrylate random co-polymer and the tackifying resin in the hot melt mixing apparatus to form a hot melt blend; andremoving the hot melt blend from the hot melt mixing apparatus to form a hot melt processable pressure sensitive adhesive.2. The method of claim 1 , wherein the hot melt mixing apparatus comprises an extruder.3. The method of claim 1 , wherein the at least one tackifying resin comprises a mixture of two tackifying resins claim 1 , wherein one of the tackifying resins comprises a high Tg tackifying resin with a glass transition temperature of at least 20° C. claim 1 , and the other comprises a low Tg tackifying resin with a glass transition temperature of no greater than 0° C.4. The method of claim 1 , wherein the hot melt processable elastomeric (meth)acrylate random co-polymer comprises a copolymer ...

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Номер записи: 23
25-07-2013 дата публикации

FOAMED ADHESIVE

Номер: US20130186551A1
Автор: HENRY Christophe, Pedrollo Thomas
Принадлежит: Zephyros, Inc.

A foamable adhesive system is provided which can achieve necessary adhesion to an oily surface and which is not tacky to the touch once applied to the surface and has a melt viscosity in the bake phase high enough to retain its shape and adhesion to the substrate and in addition a melt viscosity sufficiently high to retain gas bubbles formed by the decomposition of the blowing agent and which also retains its shape and structure once formed by use of a polymer system containing a thixotropic filler and a two compartment (component) cross linking system. 1. A hot melt adhesive formulation comprising(i) one or more solid polymers;(ii) a thixotropic filler;(iii) a blowing agent system; and(iv) a cross linking system comprising:a first cross linking agent having an activation temperature within a bake phase temperature range to increase the melt viscosity of the adhesive to control the viscosity of the melted formulation at a temperature below an activation temperature of the blowing agent system and a second cross linking agent with an activation temperature within the range of a foaming temperature.2. A formulation according to in which the first cross linking agent has an activation temperature in the range 80° C. to 150° C.3. A formulation according to claim 1 , wherein the second cross linking agent has an activation temperature in the range of 130° C. to 220° C.4. A formulation according to claim 1 , wherein the one or more solid polymers are copolymers of ethylene and unsaturated esters such as vinyl esters and alkyl acrylates.5. A formulation according to claim 1 , wherein the one or more solid polymers comprises one or more of:(i) ethylene vinyl acetate copolymers;(ii) ethylene methyl acrylate copolymers;(iii) ethylene butyl acrylate copolymers;(iv) ethylene 2 hexylethyl acrylate copolymers;(v) polyamide polymers;(vi) glycidyl methacrylate, acrylic ester, ethylene copolymers;(vii) carboxylated ethylene methyl copolymers;(viii) carboxylated ethylene butyl ...

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Номер записи: 24
01-08-2013 дата публикации

HIGH REFRACTIVE INDEX PRESSURE-SENSITIVE ADHESIVES

Номер: US20130196149A1
Автор: Determan Michael D., Everaerts Albert I., Moore Cheryl L., Olson David B.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.50. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted biphenyl group. 2. The adhesive article of claim 1 , wherein the substrate comprises a flexible substrate comprising a plastic film.3. The adhesive article of claim 2 , wherein the plastic film comprises a polypropylene film claim 2 , a polyethylene film claim 2 , a polyvinyl chloride film claim 2 , a polyester film claim 2 , a polycarbonate film claim 2 , a polymethyl(meth)acrylate film claim 2 , a cellulose acetate film claim 2 , a cellulose triacetate film claim 2 , or an ethyl cellulose film.4. The adhesive article of claim 1 , wherein the substrate comprises an inflexible substrate comprising metal claim 1 , metallized polymeric film claim 1 , tin oxide coated glass claim 1 , tin oxide coated polyester claim 1 , polymethyl(meth)acrylate plate claim 1 , polycarbonate plate claim 1 , glass claim 1 , or a ceramic sheet.5. The adhesive article of claim 1 , wherein the coated pressure sensitive adhesive has a thickness of from 2-500 micrometers dry thickness.6. The adhesive article of claim 1 , wherein the coated pressure sensitive adhesive has a thickness of from 25-250 micrometers dry thickness.7. The adhesive article of claim 1 , wherein the pressure sensitive adhesive further comprises at least one additive.8. The adhesive article of claim 7 , wherein the additive comprises a UV absorber claim 7 , a hindered amine light stabilizer claim 7 , or a combination thereof.9. The adhesive article of claim 7 , wherein the additive comprises a UV absorber claim 7 , wherein the UV absorber is present in an amount of 1 to 5 weight % based on the total weight of the pressure sensitive adhesive composition.11. The pressure sensitive adhesive of claim 10 , wherein the additive comprises a UV absorber claim 10 , a hindered amine light stabilizer claim 10 , or a ...

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Номер записи: 25
01-08-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVES WITH ACID-EPOXY CROSSLINKING SYSTEMS

Номер: US20130196152A1
Автор: Gaddam Babu N., Krepski Larry R., Mahoney Wayne S., Weikel Arlin L.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A pre-adhesive composition is described comprising an acid-functional (meth)acryloyl copolymer and epoxy resin, which when crosslinked with or without using an ionic photoacid generator (PAG) provides a (e.g. pressure-sensitive) adhesive. 1. A crosslinkable syrup polymer composition comprising: i) an alkyl(meth)acrylate monomer;', 'ii) optionally an epoxy-functional (meth)acryloyl monomer;', 'iii) an acid-functional ethylenically unsaturated monomer;', 'iv) an optional non-acid functional polar monomer;', 'v) an optional vinyl monomer, and', 'vi) an optional multifunctional (meth)acrylate crosslinker;, 'a) a (meth)acrylic solute copolymer comprising interpolymerized monomers comprisingb) an epoxy resin; andc) optionally an ionic photoacid generatord) a solvent monomer mixture comprising an alkyl(meth)acrylate monomer.2. The crosslinkable syrup polymer composition of wherein the acid-functional ethylenically unsaturated monomer of said solute copolymer is used in amounts of 1 to 15 parts by weight of the 100 parts of the total monomer of the solute copolymer.3. The crosslinkable syrup polymer composition of wherein the epoxy resin comprises on average greater than 1 polymerizable epoxy group per molecule.4. The crosslinkable syrup polymer composition of wherein the epoxy resin contains cyclohexene oxide groups.5. The crosslinkable syrup polymer composition of wherein the epoxy-functional (meth)acryloyl monomer of the solute copolymer is used in an amount of 1 to 20 parts by weight relative to 100 parts by weight of the total monomer of the epoxy-functional copolymer.10. The crosslinkable syrup polymer composition of wherein the solvent monomer mixture comprisesi) an optional epoxy-functional (meth)acryloyl monomeri) an acid-functional ethylenically unsaturated monomer;iii) an optional non-acid functional polar monomer;iv) an optional vinyl monomer, andv) an optional multifunctional (meth)acrylate crosslinker.11. The crosslinkable syrup polymer composition of wherein ...

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Номер записи: 26
08-08-2013 дата публикации

HIGH PERFORMANCE WATER-BASED TACKIFIED ACRYLIC PRESSURE SENSITIVE ADHESIVES

Номер: US20130202885A1
Автор: Dodge Robert G., Severyns Kurt
Принадлежит: HONEYWELL INTERNATIONAL INC.

A pressure-sensitive adhesion composition comprising: a first polymer that is acrylate polymer or copolymer comprising polymerized monomers selected from the group consisting of acrylic acid, butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, octyl acrylate, styrene, vinyl acetate and combinations thereof; and b) a second polymer selected from the group consisting of ethylene-acrylic acid copolymer, oxidized polyethylene, oxidized ethylene-vinyl acetate copolymer, maleated polyolefin and combinations thereof; wherein the composition is water-based and adapted for pressure-sensitive adhesion to substrates. The adhesion composition may also comprise a tackifier resin selected from the group consisting of rosin ester resin, rosin acid resin, synthetic hydrocarbon resin, synthetic terpenic resin and combinations thereof. An article of manufacture comprising a support member and a pressure-sensitive adhesion layer attached thereto that comprises said pressure-sensitive adhesion composition. A process of forming a pressure-sensitive adhesive article of manufacture. 1. A pressure-sensitive adhesion composition comprising: a) a first polymer that is acrylate polymer or copolymer comprising polymerized monomers selected from the group consisting of acrylic acid , butyl acrylate , 2-ethylhexyl acrylate , methyl methacrylate , octyl acrylate , styrene , vinyl acetate and combinations thereof; and b) a second polymer selected from the group consisting of ethylene-acrylic acid copolymer , oxidized polyethylene , oxidized ethylene-vinyl acetate copolymer , maleated polyolefin and combinations thereof; wherein the composition is water-based and adapted for pressure-sensitive adhesion to substrates.2. The composition of claim 1 , further comprising a tackifier resin selected from the group consisting of rosin ester resin claim 1 , rosin acid resin claim 1 , synthetic hydrocarbon resin claim 1 , synthetic terpenic resin and combinations thereof.3. The composition of claim 2 ...

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Номер записи: 27
08-08-2013 дата публикации

ACRYLIC PRESSURE-SENSITIVE ADHESIVE TAPE

Номер: US20130203941A1
Автор: KATAMI Hirofumi, Nonaka Takahiro
Принадлежит: NITTO DENKO CORPORATION

An acrylic pressure-sensitive adhesive tape including an acrylic pressure-sensitive adhesive layer, wherein a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to a glass plate is 10 N/20 mm or more and a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to an acrylic plate is 10 N/20 mm or more. The acrylic pressure-sensitive adhesive layer contains an acrylic polymer (A), has a gel fraction of 65% or more, and has a 300% tensile residual stress of from 7 to 16 N/cm. 1. An acrylic pressure-sensitive adhesive tape comprising an acrylic pressure-sensitive adhesive layer , whereina 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to a glass plate is 10 N/20 mm or more,a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to an acrylic plate is 10 N/20 mm or more,the acrylic pressure-sensitive adhesive layer contains an acrylic polymer (A),the acrylic pressure-sensitive adhesive layer has a gel fraction of 65% or more, and{'sup': '2', 'the acrylic pressure-sensitive adhesive layer has a 300% tensile residual stress of from 7 to 16 N/cm.'}2. The acrylic pressure-sensitive adhesive tape according to claim 1 , wherein the acrylic polymer (A) contains claim 1 , as a monomer unit claim 1 , a monomer having a hydroxyl group in a molecule thereof.3. The acrylic pressure-sensitive adhesive tape according to claim 1 , wherein the acrylic pressure-sensitive adhesive layer further contains an acrylic polymer (B) having a weight average molecular weight of from 1 claim 1 ,000 to 30 claim 1 ,000.4. The acrylic pressure-sensitive adhesive tape according to claim 2 , wherein the acrylic pressure-sensitive adhesive layer further contains an acrylic polymer (B) having a weight average molecular weight of from 1 claim 2 ,000 to 30 claim 2 ,000.5. The acrylic pressure-sensitive adhesive tape according to claim 1 , which is an optical pressure-sensitive adhesive tape.6. The acrylic pressure- ...

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Номер записи: 28
29-08-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION

Номер: US20130224436A1
Автор: Chang Suk Ky, Kim Woo Ha, Yang Se Woo
Принадлежит: LG Chem, LTD

Provided is a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition may be applied as a light diffusing or scattering material to various display devices or lighting apparatuses. 2. The composition according to claim 1 , wherein the monomer component further comprises (meth)acrylic acid.4. The composition according to claim 1 , wherein the monomer component or polymer component is a partially polymerized product of a mixture comprising a (meth)acrylic acid ester monomer; and the compound represented by any one of the Formulas 1 to 3.5. The composition according to claim 4 , wherein the mixture comprises 50 to 99.9 parts by weight of a (meth)acrylic acid ester monomer and 0.1 to 50 parts by weight of the compound represented by any one of the Formulas 1 to 3.6. The composition according to claim 4 , wherein the mixture further comprises a (meth)acrylic acid.7. The composition according to claim 6 , wherein the mixture comprises 50 to 99.9 parts by weight of a (meth)acrylic acid ester monomer claim 6 , 0.1 to 20 parts by weight of (meth)acrylic acid and 0.1 to 40 parts by weight of the compound represented by any one of the Formulas 1 to 3.9. The composition according to claim 8 , wherein the mixture comprises 50 to 99.9 parts by weight of a (meth)acrylic acid ester monomer claim 8 , 0.1 to 50 parts by weight of the compound represented by Formula 4 and 0.1 to 40 parts by weight of the compound represented by any one of the Formulas 1 to 3.10. The composition according to claim 1 , wherein “b*” value on the CIE coordinate system is from −2 to 3 claim 1 , and YI value is from −8.0 to 7.5 after being cured.11. The composition according to claim 10 , wherein the “b*” value on the CIE coordinate system is from −1 to 3 after being cured.12. The composition according to claim 10 , wherein the YI value is from 0 to 7.5 after being cured.13. The composition according to claim 1 , wherein the monomer or polymer component has a viscosity at 25° C. ...

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Номер записи: 29
29-08-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, AND PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20130225740A1
Автор: ANDO Masahiko, ISEKI Toru, JO Souya, SASAKI Shogo
Принадлежит: NITTO DENKO CORPORATION

The present invention provides a pressure-sensitive adhesive composition comprising: an acrylic polymer (A) having a polyoxyalkylene chain in a side chain and a polyoxyalkylene oligomer (B), wherein a content of the polyoxyalkylene oligomer (B) is 5 to 150 parts by weight with respect to 100 parts by weight of the acrylic polymer (A), a pressure-sensitive adhesive layer comprising the pressure-sensitive adhesive composition, and a pressure-sensitive adhesive sheet comprising a backing and the pressure-sensitive adhesive layer. 1. A pressure-sensitive adhesive composition , comprising:an acrylic polymer (A) having a polyoxyalkylene chain in a side chain; anda polyoxyalkylene oligomer (B),wherein a content of the polyoxyalkylene oligomer (B) is 5 to 150 parts by weight with respect to 100 parts by weight of the acrylic polymer (A).2. A pressure-sensitive adhesive composition according to claim 1 , wherein the acrylic polymer (A) has a polyoxypropylene chain as the polyoxyalkylene chain.3. A pressure-sensitive adhesive composition according to claim 1 , wherein the acrylic polymer (A) has a polyoxyalkylene alkyl ether chain as the polyoxyalkylene chain.4. A pressure-sensitive adhesive composition according to claim 1 , wherein the acrylic polymer (A) has a polyoxyalkylene chain having an addition molar number of oxyalkylene units of 3 or more.5. A pressure-sensitive adhesive composition according to claim 1 , wherein the acrylic polymer (A) has at least one of a trioxypropylene monomethyl ether chain and a hexaoxypropylene monomethyl ether chain as the polyoxyalkylene chain.6. A pressure-sensitive adhesive composition according to claim 1 , wherein: the acrylic polymer (A) comprises claim 1 , as a monomer component claim 1 , a monomer having a polyoxyalkylene chain; and a content of the monomer having a polyoxyalkylene chain is 3 to 78 wt % with respect to a total weight of all monomer components.7. A pressure-sensitive adhesive composition according to claim 1 , ...

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Номер записи: 30
29-08-2013 дата публикации

MOISTURE-CURABLE REACTIVE HOT-MELT ADHESIVE AGENT COMPOSITION

Номер: US20130225745A1
Автор: Fujimoto Toyohisa, Maizuru Nobuyoshi
Принадлежит: KANEKA CORPORATION

The present invention aims to provide a moisture-curable reactive hot-melt adhesive composition which contains no vinyl chloride resin, which is excellent in adhesion to oily steel sheets and electroplated steel sheets, which has high strength immediately after application to effectively improve the production cycle, and which can be suitably used in vehicle applications. This challenge is solved by a moisture-curable reactive hot-melt adhesive that includes an oxyalkylene polymer containing a reactive silyl group, an alkyl (meth)acrylate (co)polymer, a tackifying resin, and a specific inorganic filler in combination. 2. The moisture-curable reactive hot-melt adhesive composition according to claim 1 ,wherein the calcium carbonate (D) is calcium carbonate treated with a fatty acid or its salt, or with a resin acid or its salt.3. The moisture-curable reactive hot-melt adhesive composition according to claim 1 ,wherein the calcium carbonate (D) is heavy calcium carbonate treated with a fatty acid or its salt, or with a resin acid or its salt.4. The moisture-curable reactive hot-melt adhesive composition according to claim 1 ,wherein the silica (D) is hydrophobic silica.6. The moisture-curable reactive hot-melt adhesive composition according to claim 1 , for use as a hot-melt adhesive composition for oily steel sheets.7. The moisture-curable reactive hot-melt adhesive composition for oily steel sheets according to claim 6 ,wherein the inorganic filler (D) is hydrophobic silica.8. The moisture-curable reactive hot-melt adhesive composition according to claim 2 ,wherein the calcium carbonate (D) is heavy calcium carbonate treated with a fatty acid or its salt, or with a resin acid or its salt. The present invention relates to a moisture-curable reactive hot-melt adhesive composition which contains no vinyl chloride resin, which is excellent in adhesion to oily steel sheets and electroplated steel sheets, which effectively improves the production cycle, and which can be ...

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Номер записи: 31
05-09-2013 дата публикации

CURABLE ADHESIVE COMPOSITIONS

Номер: US20130230706A1
Автор: Buazza Omar Mohamed, Turshani Yassin
Принадлежит: PixelOptics, Inc.

Curable adhesive compositions are provided that exhibit a high refractive index.

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Номер записи: 32
12-09-2013 дата публикации

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

Номер: US20130236672A1
Автор: Cha Hyung-Min, Kim Jang-Soon, Kim Seong-Jin, Kim Woong-Gi, Lee Won-Yup, Park Eun-Kyung, Song Min-Seok
Принадлежит: LG HAUSYS, LTD

The present invention relates to an adhesive composition for a touch panel, an adhesive film, and a touch panel. The adhesive composition for the touch panel of the present invention is applied to the touch panel, for example, to an electrostatic capacitance-type touch panel, for hiding the pattern of a conductive layer even when being coupled to the conductive layer formed with the pattern. Also, the adhesive composition of the present invention can prevent yellowing and whitening. 1. An adhesive composition for a touch panel comprising a partially polymerized acrylic resin; a multifunctional crosslinking agent; and urethane acrylate and satisfying Equation 1:{'br': None, 'sup': '2', 'X=20 kg/in\u2003\u2003[Equation 1]'}wherein X is the high-temperature shear strength of an adhesive that is a cured product of the adhesive composition, measured on a sample at a crosshead speed of 5 mm/min, the sample being prepared as follows: one side of the adhesive is attached to a first substrate and the other side thereof is attached to a second substrate, followed by storage at 100° C. for 1 hour.2. The adhesive composition according to claim 1 , wherein the partially polymerized acrylic resin has a weight average molecular weight of 1 claim 1 ,000 claim 1 ,000 or higher.3. The adhesive composition according to claim 1 , wherein the partially polymerized acrylic resin has a degree of polymerization of 5 to 60%.4. The adhesive composition according to claim 1 , wherein the partially polymerized acrylic resin comprises a polymer of a monomer mixture comprising a (meth)acrylic acid ester monomer and a crosslinking monomer.5. The adhesive composition according to claim 4 , wherein the (meth)acrylic acid ester monomer comprises alkyl (meth)acrylates.6. The adhesive composition according to claim 4 , wherein the crosslinking monomer comprises a hydroxyl group containing monomer claim 4 , a carboxylic group containing monomer claim 4 , or a nitrogen containing monomer.7. The adhesive ...

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Номер записи: 33
12-09-2013 дата публикации

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

Номер: US20130236674A1
Автор: Cha Hyung-Min, Kim Jang-Soon, Kim Seong-Jin, Kim Woong-Gi, Lee Won-Yup, Park Eun-Kyung, Song Min-Seok
Принадлежит: LG HAUSYS, LTD.

The present invention relates to an adhesive composition for a touch panel, an adhesive film, and a touch panel. When coupled to the touch panel, for example, to a conductive layer and to a hard coating surface of an electrostatic capacitive touch panel, the present invention has superior durability, such as resistance to peeling, detaching, or air bubbles under high-temperature and high-humidity conditions, and can provide an adhesive composition or adhesive agent also having superior workability, wettability, and adhesion to various objects to be adhered. 1. An adhesive composition for a touch panel comprising:a partially polymerized acrylic resin;a multifunctional crosslinking agent; andan epoxy silane coupling agent.2. The adhesive composition according to claim 1 , wherein the partially polymerized acrylic resin has a weight average molecular weight of 1 claim 1 ,000 claim 1 ,000 or higher.3. The adhesive composition according to claim 1 , wherein the partially polymerized acrylic resin has a degree of polymerization of 5 to 60%.4. The adhesive composition according to claim 1 , wherein the partially polymerized acrylic resin comprises a polymer of a monomer mixture comprising a (meth)acrylic acid ester monomer and a crosslinking monomer.5. The adhesive composition according to claim 4 , wherein the (meth)acrylic acid ester monomer comprises alkyl (meth)acrylates.6. The adhesive composition according to claim 4 , wherein the crosslinking monomer comprises a hydroxyl group containing monomer claim 4 , a carboxylic group containing monomer claim 4 , or a nitrogen containing monomer.7. The adhesive composition according to claim 1 , wherein the multifunctional crosslinking agent comprises multifunctional (meth)acrylates.8. The adhesive composition according to claim 7 , wherein the multifunctional (meth)acrylates comprise at least one selected from the group consisting of hexanediol di(meth)acrylate claim 7 , trimethylolpropanetrioxyethyl di(meth)acrylate claim 7 ...

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Номер записи: 34
19-09-2013 дата публикации

ADHESIVE FOR POLARIZING PLATE, AND POLARIZING PLATE COMPRISING SAME

Номер: US20130244041A1
Автор: Cho Sae-Han, Jeong Boong-Goon, Lee Nam-Jeong, Rah Kyun-Il, Seo Eun-Mi
Принадлежит: LG CHEM. LTD.

Provided are an adhesive for a polarizing plate and a polarizing plate comprising the same, and more particularly, an adhesive composition for a polarizing plate comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator, as well as a polarizing plate comprising a polarizer, a polymer film adhered to one side or both sides of the polarizer, and an adhesive layer for bonding the polarizer and the polymer film, in which the adhesive layer is formed of an adhesive composition comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator. 1. An adhesive composition for a polarizing plate comprising:one or more acrylic monomers having a hydrophilic group;a radical polymerization initiator;an epoxy resin; anda cationic photopolymerization initiator.2. The adhesive composition for a polarizing plate of claim 1 , wherein the adhesive composition for a polarizing plate comprises 20 to 80 parts by weight of the one or more acrylic monomers having a hydrophilic group claim 1 , 0.5 to 10 parts by weight of the radical polymerization initiator claim 1 , 30 to 80 parts by weight of the epoxy resin and 1 to 10 parts by weight of the cationic photopolymerization initiator.3. The adhesive composition for a polarizing plate of claim 1 , wherein the adhesive composition for a polarizing plate comprises 20 to 50 parts by weight of the one or more acrylic monomers having a hydrophilic group claim 1 , 0.5 to 5 parts by weight of the radical polymerization initiator claim 1 , 20 to 60 parts by weight of the epoxy resin and 1 to 7 parts by weight of the cationic photopolymerization initiator.4. The adhesive composition for a polarizing plate of claim 1 , wherein the adhesive composition for a polarizing plate comprises 30 parts by weight of the one or more acrylic monomers having a ...

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Номер записи: 35
26-09-2013 дата публикации

Activatable Adhesive, Labels, and Related Methods

Номер: US20130248103A1
Автор: Dong-Tsai Hseih, Johannes Lenkl, Kai Li, Kourosh Kian, Souphong Lee
Принадлежит: Avery Dennison Corp

An activatable adhesive that is formulated to readily absorb energy from a given radiation source, an activatable adhesive label that incorporates such an activatable adhesive, a system for activating such labels, and related methods and uses are described. The activatable adhesive includes a plasticizer, a tackifier, and an adhesive base polymer that includes butyl acrylate, styrene, methyl methacrylate, methacrylic acid, and acrylic acid.

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Номер записи: 36
26-09-2013 дата публикации

ADHESIVE LAYER FOR OPTICAL FILM, OPTICAL FILM HAVING ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND DETACHMENT METHOD FOR OPTICAL FILM

Номер: US20130248118A1
Автор: Hosokawa Toshitsugu, Inui Kunihiro, Ishii Takaaki, Makihata Yousuke, Okada Kenichi, Satake Masayuki, Shimokuri Taiki, Takahashi Toshitaka
Принадлежит: NITTO DENKO CORPORATION

A pressure-sensitive adhesive layer for an optical film made from an aqueous dispersion-type pressure-sensitive adhesive composition, wherein the aqueous dispersion-type pressure-sensitive adhesive composition is an aqueous dispersion comprising a water-dispersible (meth)acryl-based copolymer (A) having a glass transition temperature from −55° C. to less than 0° C.; and a water-soluble or water-dispersible component (B) having a glass transition temperature of 0° C. or more, a mixture ratio (A)/(B) is in the range of 50-97/3-50, the component (B) forms domains with maximum lengths between 1 nm and 200 nm in a resin component made of the (meth)acryl-based copolymer (A), and the pressure-sensitive adhesive layer has a haze value (H20) of 1% or less when having a thickness of 20 μm. The pressure-sensitive adhesive layer for an optical film, which is made from an aqueous dispersion-type pressure-sensitive adhesive composition has good reworkability or recyclability, and has a sufficient level of durability. 1. A pressure-sensitive adhesive layer for an optical film made from an aqueous dispersion-type pressure-sensitive adhesive composition , whereinthe aqueous dispersion-type pressure-sensitive adhesive composition is an aqueous dispersion comprising a water-dispersible (meth)acryl-based copolymer (A) containing an alkyl(meth)acrylate and a carboxyl group-containing monomer as monomer units and having a glass transition temperature from −55° C. to less than 0° C. (wherein the glass transition temperature is calculated based on monofunctional monomers for monomer units); and a water-soluble or water-dispersible component (B) having a glass transition temperature of 0° C. or more,a difference of the glass transition temperatures between the (meth)acryl-based copolymer (A) and the component (B) is 50° C. or more,a mixture ratio (A)/(B) (on a solid weight basis) of the (meth)acryl-based copolymer (A) and the component (B) is in the range of 50-97/3-50,the component (B) ...

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Номер записи: 37
26-09-2013 дата публикации

Activatable Adhesive, Labels, and Related Methods

Номер: US20130251944A1
Автор: Bharadwaj Rishikesh K., Edwards David N., Hseih Dong-Tsai, Kian Kourosh, LEE Souphong, Lenkl Johannes, Li Kai, Mallya Prakash
Принадлежит: AVERY DENNISON CORPORATION

An activatable adhesive that is formulated to readily absorb energy from a given radiation source, an activatable adhesive label that incorporates such an activatable adhesive, a system for activating such labels, and related methods and uses are described. The activatable adhesive includes a plasticizer, a tackifier, and an adhesive base polymer that includes butyl acrylate, styrene, methyl methacrylate, methacrylic acid, and acrylic acid. 1. A label assembly comprising a facestock layer and a heat activatable adhesive layer , and a functional coating layer disposed between the adhesive layer and the facestock layer.2. The label assembly of wherein the facestock layer includes paper or a polymeric film claim 1 , and the functional coating layer includes at least one of a barrier material claim 1 , a primer material claim 1 , and a reflective material.344-. (canceled)45. A label comprising:a facestock layer; and i. an adhesive base polymer including butyl acrylate, styrene, methyl methacrylate, methacrylic acid, acrylic acid, at least one multifunctional monomer, and at least one chain transfer agent,', 'ii. a plasticizer, and', 'iii. a tackifier., 'an adhesive layer that is coupled to the facestock layer and includes4669-. (canceled)70. A label comprising:a facestock layer;an adhesive layer; anda reflective layer that is coupled between the facestock layer and the adhesive layer.7188-. (canceled)89. A label comprising:a facestock layer defining an outer face and an oppositely directed inner face;an adhesive layer disposed on the inner face, wherein the adhesive exhibits an activation time of less than 1 second, exhibits an open time of at least 30 seconds and exhibits an initial tack to a substrate of at least 1.0 Newton.90135-. (canceled)136. Use of the label assembly of in a printer.137151-. (canceled)152. The label according to claim 45 , wherein:the label is configured to be exposed to a radiant energy;the radiant energy has a wavelength and an intensity that ...

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Номер записи: 38
26-09-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE LAYER, AND PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20130251990A1
Автор: HIGASHI Masatsugu, KAMIYA Katsuhiko, SHITARA Koji, Tanaka Akiko
Принадлежит: NITTO DENKO CORPORATION

A pressure-sensitive adhesive of the invention includes a (meth)acryl-based polymer obtained by polymerization of a monomer component including: an alkyl(meth)acrylate (a1) having a branched alkyl group of 8 to 24 carbon atoms at an ester end; and an alkyl(meth)acrylate (a2) having a linear alkyl group of 8 to 24 carbon atoms at an ester end. The pressure-sensitive adhesive can has a satisfactory level of adhesive performance and can form a pressure-sensitive adhesive layer with a lower dielectric constant. 1. A pressure-sensitive adhesive , comprising a (meth)acryl-based polymer obtained by polymerization of a monomer component including: an alkyl(meth)acrylate (a1) having a branched alkyl group of 8 to 24 carbon atoms at an ester end; and an alkyl(meth)acrylate (a2) having a linear alkyl group of 8 to 24 carbon atoms at an ester end.2. The pressure-sensitive adhesive according to claim 1 , wherein the total content of the alkyl(meth)acrylate (a1) having a branched alkyl group of 8 to 24 carbon atoms at an ester end and the alkyl(meth)acrylate (a2) having a linear alkyl group of 8 to 24 carbon atoms at an ester end in the monomer component is from 35 to 99.5% by weight.3. The pressure-sensitive adhesive according to claim 1 , wherein the alkyl(meth)acrylate (a2) having a linear alkyl group at an ester end is capable of forming a homopolymer with a Tg of −20° C. or lower.4. The pressure-sensitive adhesive according to claim 1 , wherein the monomer component further include at least one functional group-containing monomer selected from a carboxyl group-containing monomer claim 1 , a hydroxyl group-containing monomer claim 1 , and a cyclic ether group-containing monomer.5. The pressure-sensitive adhesive according to claim 1 , wherein the alkyl(meth)acrylate (a2) having a linear alkyl group at an ester end is an alkyl methacrylate having a linear alkyl group at an ester end.6. The pressure-sensitive adhesive according to claim 1 , wherein the monomer component further ...

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Номер записи: 39
26-09-2013 дата публикации

Pressure Sensitive Adhesive and Adhesive Tape

Номер: US20130251991A1
Автор: Aizoh Sakurai, Kosuke Sugawa
Принадлежит: 3M Innovative Properties Co

There is provided a pressure sensitive adhesive displaying sufficient adhesive force to the surface of PMMA under a wide range of temperatures including ambient, low, and high temperatures, and also an adhesive tape having an adhesive layer including the pressure sensitive adhesive. There is provided a pressure sensitive adhesive comprising a polymer obtained by polymerizing 100 mass parts of a monomer mixture comprising: a monomer component 1 comprising an acrylate mixture selected from an aliphatic alkyl(meth)acrylate having a carbon number of 4-6 and an aliphatic alkyl(meth)acrylate having a carbon number of 7-12; a monomer component 2 comprising an amide group-containing vinyl monomer; a monomer component 3 comprising an ester of a non-tertial aromatic alcohol and (meth)acrylic acid, or an ester of a non-tertial alicyclic alcohol and (meth)acrylic acid; and a monomer component 4 comprising (meth)acrylic acid.

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Номер записи: 40
03-10-2013 дата публикации

ELASTIC METHACRYLATE COMPOSITIONS

Номер: US20130261247A1
Автор: Briggs Paul C., Osae Samuel B.
Принадлежит: IPS CORPORATION

A two-part adhesive composition exhibiting improved elasticity wherein its composition includes one or more acrylate or methacrylate ester monomers, a sulfur bearing compound, preferably a sulfonyl chloride, an amine promoter, preferably, an amine aldehyde reaction product, and a thermoplastic block copolymer component selected from the group consisting of 120-. (canceled)21. A two-part adhesive composition component A and component B capable of being mixed in a 1:1 ratio to form elastic or ductile adhesives , whereincomponent A comprises one or more methacrylate or acrylate ester monomers, and a sulfur bearing compound, selected from the group consisting of chlorosulfonated polyethylene, sulfonyl chloride and sulfimides, andcomponent B comprises one or more acrylate or methacrylate ester monomers and an amine promoter selected from the group consisting of tertiary aromatic amines and amine-aldehyde promoters, a. a linear styrene-butadiene-styrene block copolymer,', 'b. a linear styrene-isoprene-styrene block copolymer,', 'c. a linear styrene-butadiene-isoprene-styrene block copolymer,', 'and mixtures thereof,, 'wherein either component A or component B or both further comprise a thermoplastic block copolymer component selected from the group consisting of'}and an adhesion promoting polymer.22. The two-part adhesive composition of wherein the one or more acrylate or methacrylate ester monomers are selected from the group consisting of methyl methacrylate monomers claim 21 , and higher molecular weight acrylate and methacrylate monomers claim 21 , wherein the alcohol portion of the monomer is based on a Cor higher hydrocarbon moiety and mixtures thereof.23. The two-part adhesive composition of wherein the sulfur bearing compound is selected from the group consisting of sulfonyl chloride and sulfimide.24. The two-part adhesive composition of wherein the thermoplastic block polymer component of further comprises an adhesion promoting polymer.25. The two-part adhesive ...

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Номер записи: 41
10-10-2013 дата публикации

COMPOSITIONS FOR PRODUCTION OF ABHESIVE COATINGS

Номер: US20130266811A1
Автор: Hinterwaldner Rudolf, Hinterwaldner Stephan
Принадлежит: HINTERWALDNER CONSULTING & PARTNER

The present invention relates to compositions which comprise an olefinic component and a compound reactive or curable with the olefinic component, and which are suitable for production of release layers 2. A composition as claimed in claim 1 , wherein A and B together contain at least 12 carbon atoms.3. A composition as claimed in claim 1 , wherein A and B independently of one another stand for an alkyl group having 6 to 24 carbon atoms.4. A composition as claimed in claim 1 , wherein A and B are different.5. A composition as claimed in claim 3 , wherein A is an unbranched alkyl group having 10 carbon atoms and B is an unbranched alkyl group having 8 carbon atoms.6. A composition as claimed in claim 1 , wherein component b) is selected from organosilicon compounds claim 1 , unsaturated polyester resins claim 1 , acrylate- or methacrylate-functionalized or allyl-functionalized polyalkylenediols claim 1 , and acrylic or methacrylic esters.7. A composition as claimed in claim 6 , wherein the organosilicon compound is radiation-curable.8. A composition as claimed in claim 7 , wherein the radiation-curable organosilicon compound is an organopolysiloxane containing epoxy groups claim 7 , an SiH-functional organosilicon compound or an organopolysiloxane containing acryloyloxy or methacryloyloxy groups.9. A composition as claimed in claim 8 , wherein the silicone containing epoxy groups are obtained by reacting a silane or siloxane having SiH groups with an olefinic epoxide claim 8 , in the presence of a tertiary amine and of a hydrosilylation catalyst.12. A composition as claimed in claim 1 , wherein the weight ratio of component (a) to component (b) is in the range from 1:5 to 2:1 claim 1 , more particularly in the range from 1:3 to 1:1.13. A composition as claimed in claim 1 , further comprising a photoinitiator claim 1 , a radical initiator or an initiator of cationic curing.14. (canceled)15. A method for producing an abhesive release layer claim 1 , wherein a ...

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Номер записи: 42
10-10-2013 дата публикации

ADHESIVE COMPOSITION FOR BONDING LOW SURFACE ENERGY POLYOLEFIN SUBSTRATES

Номер: US20130267670A1
Автор: Xie Xiaoyi
Принадлежит: IPS CORPORATION

A two-part acrylic adhesive composition comprising at least one organoborane-amine complex initiator and at least one multifunctional maleimide crosslinker. 1. A two-part acrylic adhesive composition comprising:at least one organoborane-amine complex initiator, andat least one multifunctional maleimide crosslinker.2. The two-part acrylic adhesive composition of wherein the organoborane-amine complex initiator is a trialkylborane-amine complex.3. The two-part acrylic adhesive composition of wherein the trialkylborane-amine complex is triethylborane-1 claim 2 ,3-diaminopropane.4. The two-part acrylic adhesive composition of wherein the multifunctional maleimide crosslinker comprises at least two maleimide end groups per molecule.5. The two-part acrylic adhesive composition of wherein the multifunctional maleimide crosslinker is a bismaleimide crosslinker.7. The two-part acrylic adhesive composition of wherein a first part that is an initiator part comprises at least one organoborane-amine complex initiator claim 1 , and optionally at least one non-polymerizable plasticizer.8. The two-part acrylic adhesive composition of wherein a second part that is an activator part further comprises at least one activator which is an amine acceptor for decomplexing the organoborane-amine complex.9. The two-part acrylic adhesive composition of wherein the at least one activator comprises at least one organic acid.10. The two-part acrylic adhesive composition of wherein the at least one organic acid is a carboxylic acid.11. The two-part acrylic adhesive composition of wherein the carboxylic acid comprises at least one member selected from the group consisting of (meth)acrylic acid claim 10 , acetic acid claim 10 , benzoic acid claim 10 , p-methoxybenzoic acid claim 10 , maleic acid claim 10 , succinic acid and mixtures thereof.12. The two-part acrylic adhesive composition of further comprising at least one polymerizable ethylenically unsaturated monomer claim 1 , oligomer or a ...

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Номер записи: 43
17-10-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE SHEET AND PRESSURE-SENSITIVE ADHESIVE COMPOSITION

Номер: US20130274361A1
Автор: HIGUCHI Naoaki, INOKUCHI Shinji, OGAWA Takuma, YAMANAKA Eiji
Принадлежит: NITTO DENKO CORPORATION

A pressure-sensitive adhesive sheet according to an embodiment of the present invention has a pressure-sensitive adhesive layer including an acrylic polymer. This acrylic polymer contains, as monomer components, an acrylic monomer not containing a polar group (A) and a polar group-containing monomer (B). The 100% modulus of this pressure-sensitive adhesive layer is 20 to 200 N/cm. 1. A pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer including an acrylic polymer , whereinthe acrylic polymer contains, as monomer components, an acrylic monomer not containing a polar group (A) and a polar group-containing monomer (B), and wherein{'sup': '2', '100% modulus of the pressure-sensitive adhesive layer is 20 to 200 N/cm.'}2. The pressure-sensitive adhesive sheet according to claim 1 , whereinthe content of the polar group-containing monomer (B) is 5 parts by mass or more, based on 100 parts by mass of the whole monomer components for forming the acrylic polymer.3. The pressure-sensitive adhesive sheet according to claim 1 , whereinthe polar group-containing monomer (B) is a carboxyl group-containing monomer.4. The pressure-sensitive adhesive sheet according to claim 1 , whereinthe pressure-sensitive adhesive layer contains a fine particle.5. The pressure-sensitive adhesive sheet according to claim 4 , whereinthe content of the fine particle is 5 parts by mass or more, based on 100 parts by mass of the whole monomer components for forming the acrylic polymer.6. The pressure-sensitive adhesive sheet according to claim 1 , whereinthe content of a bubble in the pressure-sensitive adhesive layer is 10% by volume or less, based on the whole volume of the pressure-sensitive adhesive layer.7. A pressure-sensitive adhesive composition including an acrylic polymer claim 1 , whereinthe acrylic polymer contains, as monomer components, an acrylic monomer not containing a polar group (A) and a polar group-containing monomer (B), and wherein{'sup': '2', 'when ...

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Номер записи: 44
17-10-2013 дата публикации

Acrylic pressure-sensitive adhesive composition and acrylic pressure-sensitive adhesive tape

Номер: US20130274419A1
Автор: Jun Akiyama, Kiyoe Shigetomi, Masahito Niwa, Masayuki Okamoto
Принадлежит: Nitto Denko Corp

An acrylic pressure-sensitive adhesive composition contains: an acrylic polymer (A); and a (meth)acrylic polymer (B) that includes, as a monomer unit, a (meth)acrylic monomer having a tricyclic or higher alicyclic structure and that has a weight average molecular weight of 1000 or more and less than 30000.

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Номер записи: 45
31-10-2013 дата публикации

ACTINICALLY CURABLE ADHESIVE COMPOSITION

Номер: US20130284360A1
Автор: Farah Hassan Mohamed, HELD ROBERT PAUL
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

A photocurable adhesive composition is disclosed herein that has high adhesive strength and optical clarity and which in the cured state is reworkable and exhibits low propensities for exhibiting glow mark and pooling effects. The composition contains a chain transfer agent, an urethane (meth)acrylate having a plurality of ethylenically unsaturated groups, a (meth)acrylate monomer and a photoinitiator. The composition may optionally contain a light stabilizer. 1. An actinically curable adhesive composition comprising:a) an aliphatic urethane acrylate having a plurality of ethylenically unsaturated groups;b) a (meth)acrylate monomer;c) a photoinitiator;d) a plasticizer; ande) pentaerythritol tetrakis(3-mercaptopropionate)wherein the level of the (meth)acrylate monomer plus the level of the plasticizer together range from 30 weight percent to 50 weight percent of the total weight of the composition.2. The actinically curable adhesive composition of wherein the composition in its actinically cured state in use in a display device is reworkable.3. The actinically curable adhesive composition of wherein the composition in its actinically cured state and in use for bonding a glass plate to a front polarizer of an LCD exhibits a glow mark test rating of 2 or less in a glow mark test.4. The actinically curable adhesive composition of wherein the composition in its actinically cured state and in use for bonding a glass plate to a front polarizer of an LCD exhibits a pooling test rating of 1 or less in a pooling test.5. The actinically curable adhesive composition of wherein level of the plasticizer ranges from 3 weight percent to 40 weight percent of the total weight of the composition.6. The actinically curable adhesive composition of wherein the composition upon curing exhibits a modulus of less than or equal to 0.27 megapascals.7. The actinically curable adhesive composition of wherein the composition upon curing exhibits a modulus that ranges from 0.01 megapascals to 0.1 ...

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Номер записи: 46
31-10-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR USE ON AN OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE LAYER-CARRYING OPTICAL FILM, AND IMAGE DISPLAY DEVICE

Номер: US20130288048A1
Автор: Goto Shusaku, Kamijo Takashi, Kimura Tomoyuki, Kitagawa Takeharu, Miyatake Minoru, Mori Tomohiro, Satake Masayuki, Toyama Yuusuke, Yasui Atsushi
Принадлежит: NITTO DENKO CORPORATION

A pressure-sensitive adhesive composition for use on an optical film, includes a (meth)acryl-based polymer obtained by copolymerization of 30 to 98.9% by weight of an alkyl(meth)acrylate, 1 to 50% by weight of an aromatic ring-containing polymerizable monomer, 0.1 to 20% by weight of a hydroxyl group-containing monomer, and 0 to 4% by weight of a carboxyl group-containing monomer, and a solvent. The (meth)acryl-based polymer has a weight average molecular weight of 300,000 to 1,200,000 as measured by gel permeation chromatography. The content of a solid including the (meth)acryl-based polymer is 20% by weight or more, and the content of the solvent is 80% by weight or less. 1. A pressure-sensitive adhesive composition for use on an optical film , comprising:a (meth)acryl-based polymer obtained by copolymerization of 30 to 98.9% o by weight of an alkyl(meth)acrylate, 1 to 50% by weight of an aromatic ring-containing polymerizable monomer, 0.1 to 20% by weight of a hydroxyl group-containing monomer, and 0 to 4% by weight of a carboxyl group-containing monomer, the (meth)acryl-based polymer having a weight average molecular weight of 300,000 to 1,200,000 as measured by gel permeation chromatography; anda solvent, whereinthe content of a solid including the (meth)acryl-based polymer is 20% by weight or more, and the content of the solvent is 80% by weight or less.2. The pressure-sensitive adhesive composition for use on an optical film according to claim 1 , wherein the aromatic ring-containing polymerizable monomer is benzyl(meth)acrylate.3. The pressure-sensitive adhesive composition for use on an optical film according to claim 1 , wherein the hydroxyl group-containing monomer is 4-hydroxybutyl acrylate.4. The pressure-sensitive adhesive composition for use on an optical film according to claim 1 , further comprising 0.02 to 2 parts by weight of a radical generating agent based on 100 parts by weight of the (meth)acryl-based polymer.5. The pressure-sensitive adhesive ...

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Номер записи: 47
31-10-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVES WITH TRIAZINE-EPOXY CROSSLINKING SYSTEM

Номер: US20130289219A1
Автор: Aloshyna ep Lesuffleur Marie, Gaddam Babu N., Krepski Larry R.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A crosslinkable composition is described comprising an acid- and epoxy-functional copolymer, which when cross-linked with a triazine crosslinking agent provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles. 1. A crosslinkable composition comprising: an epoxy-functional (meth)acryloyl monomer;', 'an acid-functional ethylenically unsaturated monomer; and', 'an optional multifunctional (meth)acrylate crosslinker; and, 'an acid- and epoxy-functional (meth)acrylic copolymer comprising interpolymerized monomers comprisinga chlorinated triazine crosslinking agent;wherein the epoxy-functional (meth)acryloyl monomer is used in an amount of no greater than 5 parts by weight, and the chlorinated triazine crosslinking agent is used in an amount of no greater than 0.01 part by weight, relative to 100 parts by weight of the total monomer content that would form an unmodified acid-functional (meth)acrylic copolymer.2. The crosslinkable composition of wherein the epoxy-functional (meth)acryloyl monomer is used in an amount of no greater than 1 part by weight.3. The crosslinkable composition of wherein the acid- and epoxy-functional (meth)acrylic copolymer comprises interpolymerized monomers comprising a (meth)acrylic acid ester of a non-tertiary alcohol claim 1 , an acid-functional ethylenically unsaturated monomer claim 1 , and an epoxy-functional (meth)acryloyl monomer.4. The crosslinkable composition of wherein the acid-functional ethylenically unsaturated monomer is used in an amount of at least 1 part by weight of the 100 parts of the total monomer content that would form an unmodified acid-functional (meth)acrylic copolymer.5. The crosslinkable composition of wherein the acid- and epoxy-functional (meth)acrylic copolymer comprises interpolymerized monomers comprising:85 to 99 parts by weight of a (meth)acrylic acid ester of a non-tertiary alcohol; and1 to 15 parts by weight of an acid-functional ethylenically unsaturated monomer;based on 100 parts of ...

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Номер записи: 48
07-11-2013 дата публикации

ADHESIVE COMPOSITION FOR POLARIZING PLATE AND POLARIZING PLATE PREPARED USING THE SAME

Номер: US20130295383A1
Автор: Jeong Eun Hwan, Kim Won, KIM Yi Eun
Принадлежит:

An adhesive composition and a polarizing plate, the adhesive composition including an isocyanate curing agent and having a creeping distance decrease rate of 10% or less, wherein the creeping distance decrease rate is calculated by Equation 1: 1. An adhesive composition comprising an isocyanate curing agent and having a creeping distance decrease rate of 10% or less , wherein the creeping distance decrease rate is calculated by Equation 1:{'br': None, 'i': A−B', 'A|×, 'Creeping distance decrease rate (%)=|()/100, \u2003\u2003[Equation 1]'}wherein, in Equation 1, A and B are creeping distances of an adhesive layer prepared from the composition, when a force of 2.25 kg is applied to a polarizing plate at 25° C. for 1,000 seconds after the polarizing plate formed with the adhesive layer is attached to a glass plate and left at 35° C. and 45% RH for 24 hours and for 36 hours, respectively.3. The adhesive composition as claimed in claim 1 , wherein the adhesive composition has a gel fraction of 70% or higher in 36 hours after formation of the adhesive layer on a film.4. The adhesive composition as claimed in claim 1 , wherein the adhesive composition has a viscosity change rate (Δη) of less than 10% claim 1 , expressed as Equation 3:{'br': None, 'i': b−a', 'a×, 'Δη=|()|/100, \u2003\u2003[Equation 3]'}wherein, in Equation 3, a is an initial viscosity of the adhesive composition, and b is a viscosity of the adhesive composition after storage at 25° C. for 2 days.5. An adhesive composition comprising an isocyanate curing agent and having a difference in gel fraction of greater than 0 and less than 5% between gel fraction measured 4 days after formation of an adhesive layer and gel fraction measured 1 day after formation of the adhesive layer claim 1 , {'br': None, 'i': 'D/C×', 'Gel fraction (%)=100, \u2003\u2003[Equation 2]'}, 'wherein the gel fraction is expressed as Equation 2wherein, in Equation 2, C is a weight of the adhesive composition after storing a predetermined ...

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Номер записи: 49
14-11-2013 дата публикации

MATERIALS HAVING A CONTROLLABLE DEGREE OF CROSSLINKING

Номер: US20130303678A1
Автор: BARNER-KOWOLLIK Christopher, Hilf Stefan, Schmidt Friedrich Georg, Zhou Jiawen
Принадлежит: Evonik Roehm GmbH

The present invention relates to innovative materials which can be crosslinked by means of two different crosslinking mechanisms, the first crosslinking mechanism being an irreversible crosslinking. The second crosslinking mechanism is a thermoreversible mechanism. 1. A partially reversibly crosslinkable formulation which is crosslinkable by:(A) a Diels-Alder reaction or a hetero-Diels-Alder reaction, said reactions activated at room temperature such that crosslinking is reversible to an extent of at least 50% at a higher temperature; and(B) a crosslinking reaction different than the Diel-Alder reactions (A).2. The formulation according to claim 1 , wherein the crosslinking (B) is an ester- claim 1 , amide- claim 1 , epoxy- claim 1 , silyl- or isocyanate-based crosslinking.3. The formulation according to claim 1 , wherein the crosslinking (B) is a UV-initiated claim 1 , thermally initiated or initiator-initiated radical crosslinking or vulcanization.4. The formulation according to claim 1 , wherein the crosslinking (B) is a physical crosslinking.5. The formulation according to claim 1 , wherein the crosslinking (B) is a reversible switchable Diels-Alder or hetero-Diels-Alder reaction claim 1 , and a crosslinking temperature and/or a deactivation temperature is higher by at least 40° C. than for the Diels-Alder reaction or hetero-Diels-Alder reaction of the crosslinking (A).6. The formulation according to claim 1 , comprising:a component A comprising at least two dienophilic double bonds;a component B comprising at least two diene functionalities; anda component C and an optional component D which can be activated by the crosslinking reaction (B),wherein:at least one of the component A and the component B comprises more than two functionalities; andat least one of the component A and the component B is a polymer.7. The formulation according to claim 6 , wherein the component A and the component B are polymers claim 6 , which may be identical or different.8. The ...

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Номер записи: 50
05-12-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE SHEET FOR OPTICAL USE

Номер: US20130323437A1
Автор: Banba Tomohide, FUMOTO Hiroaki, KISHIOKA Hiroaki, NATSUI Masatomo, Nonaka Takahiro, Suzuki Takashi, Takarada Shou
Принадлежит: NITTO DENKO CORPORATION

Provided is a pressure-sensitive adhesive sheet for optical use which less suffers from a misoperation-causing change in capacitance upon application to an optical member. 1. A pressure-sensitive adhesive sheet for optical use comprising a pressure-sensitive adhesive layer , the pressure-sensitive adhesive sheet having a dielectric constant (relative) of from 2 to 8 at a frequency of 1 MHz and a dielectric loss tangent of more than 0 and 0.2 or less at a frequency of 1 MHz ,wherein the pressure-sensitive adhesive layer is an acrylic pressure-sensitive adhesive layer;wherein the acrylic pressure-sensitive adhesive layer comprises, as a base polymer, an acrylic polymer derived from an acrylic monomer as an essential monomer component and a polar-group-containing monomer as a copolymerizable monomer component;wherein the essential monomer component is an alkyl (meth)acrylate alone or in combination with an alkoxyalkyl (meth)acrylate, the alkyl (meth)acrylate having a linear or branched chain alkyl group containing 1 to 4 carbon atoms;wherein the polar-group-containing monomer is at least one monomer selected from the group consisting of carboxyl-containing monomers or acid anhydrides of them, hydroxyl-containing monomers, amino-containing monomers, amido-containing monomers, and heterocycle-containing vinyl monomers.2. The pressure-sensitive adhesive sheet for optical use according to claim 1 , wherein the pressure-sensitive adhesive sheet has a dielectric constant (relative) at a frequency of 1.0×10Hz being 60% or more of a dielectric constant (relative) at a frequency of 1.0×10Hz.3. The pressure-sensitive adhesive sheet for optical use according to claim 1 , wherein the pressure-sensitive adhesive sheet has an absolute value of difference between a dielectric loss tangent at a frequency of 1.0×10Hz and a dielectric loss tangent at a frequency of 1.0×10Hz of 0.15 or less.4. The pressure-sensitive adhesive sheet for optical use according to claim 1 ,wherein the ...

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Номер записи: 51
05-12-2013 дата публикации

OPTICALLY CLEAR ADHESIVE, METHOD OF USE AND ARTICLES THEREFROM

Номер: US20130323521A1
Автор: Everaerts Albert I., Xia Jianhui
Принадлежит:

An adhesive composition includes an alkyl (meth)acrylate ester, wherein the alkyl group has 4 to 18 carbon atoms, a hydrophilic copolymerizable monomer and a free-radical generating initiator. The adhesive composition has a tan delta value of between about 0.5 and about 1.0 at a temperature of between about 25 C and about 100 C. 1. An adhesive composition comprising:an alkyl (meth)acrylate ester, wherein the alkyl group has 4 to 18 carbon atoms;a hydrophilic copolymerizable monomer; anda free-radical generating initiator;wherein the adhesive composition maintains a tan delta value of between about 0.5 and about 1.0 at a temperature of between about 25° C. and about 100° C.2. The adhesive composition of claim 1 , wherein the adhesive composition maintains a tan delta value of between about 0.6 and about 0.8 at a temperature of between about 25° C. and about 100° C.3. The adhesive composition of claim 1 , wherein the alkyl(meth)acrylate ester is selected from the group consisting of: 2-ethylhexyl acrylate (2-EHA) claim 1 , isobornyl acrylate (IBA) claim 1 , iso-octylacrylate (IOA) and butyl acrylate (BA).4. The adhesive composition of claim 1 , wherein the hydrophilic copolymerizable monomer is selected from the group consisting of: acrylic acid (AA) claim 1 , 2-hydroxyethyl acrylate (HEA) claim 1 , and hydroxypropyl acrylate (HPA) claim 1 , ethoxyethoxyethyl acrylate (V-190) claim 1 , acrylic amide (Acm) claim 1 , diacetone acrylamide claim 1 , N claim 1 ,N-dimethylacrylamide claim 1 , and N-morpholino acrylate (MoA).5. The adhesive composition of claim 1 , wherein the alkyl (meth)acrylate ester comprises a low Tg yielding alkyl (meth)acrylate ester claim 1 , wherein the low Tg alkyl (meth)acrylate ester as a homopolymer has a Tg of between about −70° C. and about 20° C.6. (canceled)7. The adhesive composition of claim 5 , wherein the alkyl (meth)acrylate ester further comprises a high Tg yielding alkyl (meth)acrylate ester claim 5 , wherein the high Tg alkyl (meth) ...

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Номер записи: 52
12-12-2013 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION

Номер: US20130331522A1
Автор: Chang Suk Ky, JEON Jong Rok, Yang Se Woo
Принадлежит: LG CHEM, LTD.

There is provided a pressure sensitive adhesive composition and a pressure sensitive adhesive. A pressure sensitive adhesive composition example of the present application can provide a pressure sensitive adhesive having, for example, a high shear resistance together with an excellent peeling property or tacking property with respect to an attachment target surface. 1. A pressure sensitive adhesive composition comprising:an adhesive acryl polymer containing a hydroxyl group or a carboxyl group; anda polyphenolic compound in an amount of 0.1 parts by weight to 20 parts by weight relative to 100 parts by weight of the acryl polymer.2. The pressure sensitive adhesive composition of claim 1 , wherein the pressure sensitive adhesive composition satisfies General Formula 1 or 2:{'br': None, 'i': X', '/X', '=ΔX, '95%≧(21)×100\u2003\u2003[General Formula 1]'}{'br': None, 'i': Y', '/Y', '=ΔY, '106%≦(21)×100\u2003\u2003[General Formula 2]'}wherein in General Formulas 1 and 2, ΔX represents a change in creep of a pressure sensitive adhesive before and after addition of the polyphenolic compound, ΔY represents a change in a peel strength of the pressure sensitive adhesive before and after addition of the polyphenolic compound, X1 and Y1 respectively represent creep and a peel strength of a pressure sensitive adhesive prepared from a pressure sensitive adhesive composition excluding the polyphenolic compound from the pressure sensitive adhesive composition, X2 and Y2 respectively represent creep and a peel strength of a pressure sensitive adhesive prepared from the pressure sensitive adhesive composition containing the polyphenolic compound, the creep is measured when a specimen having a width of 2.5 cm, a length of 2.5 cm, and a thickness of 40 μm produced with the pressure sensitive adhesive from the pressure sensitive adhesive composition is attached to glass and a load of 1 kg is applied to the specimen for 500 seconds, and the peel strength is measured when the specimen is ...

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Номер записи: 53
26-12-2013 дата публикации

ADHESIVE FILM, ADHESIVE COMPOSITION FOR THE SAME, AND OPTICAL MEMBER INCLUDING THE SAME

Номер: US20130345333A1
Автор: CHO Ik Hwan, HAN In Cheon, KIM Ki Yong, KIM Lee June, MUN Sung Hyun
Принадлежит:

An adhesive film, an adhesive composition for the same, and an optical member including the same, the adhesive film having an index of refraction of about 1.48 or more and a dielectric constant variation of about 30% or less, as expressed by Equation 1: 2. The adhesive film as claimed in claim 1 , wherein the adhesive film includes a (meth)acrylate copolymer having carbonate groups and aromatic groups claim 1 , a photocurable monomer claim 1 , an initiator claim 1 , and a crosslinking agent.3. The adhesive film as claimed in claim 2 , wherein the adhesive film is formed of a composition including about 1 wt % to about 65 wt % of the (meth)acrylate copolymer claim 2 , about 15 wt % to about 90 wt % of the photocurable monomer claim 2 , about 0.1 wt % to about 10 wt % of the initiator claim 2 , and about 0.01 wt % to about 10 wt % of the crosslinking agent.6. The adhesive film as claimed in claim 5 , wherein the adhesive film includes a (meth)acrylate copolymer having carbonate groups and aromatic groups claim 5 , a photocurable monomer claim 5 , an initiator claim 5 , and a crosslinking agent.7. The adhesive film as claimed in claim 6 , wherein the adhesive film is formed of a composition including about 1 wt % to about 65 wt % of the (meth)acrylate copolymer claim 6 , about 15 wt % to about 90 wt % of the photocurable monomer claim 6 , about 0.1 wt % to about 10 wt % of the initiator claim 6 , and about 0.01 wt % to about 10 wt % of the crosslinking agent.9. An adhesive composition comprising a (meth)acrylate copolymer having carbonate groups and aromatic groups.10. The adhesive composition as claimed in claim 9 , wherein the (meth)acrylate copolymer has a dielectric constant of about 3.0 or less at a frequency of 10Hz to 10Hz and an index of refraction of about 1.50 to about 1.60.11. The adhesive composition as claimed in claim 9 , wherein the (meth)acrylate copolymer has a weight average molecular weight of about 5 claim 9 ,000 g/mol to about 100 claim 9 ,000 g/ ...

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Номер записи: 54
16-01-2014 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM

Номер: US20140016068A1
Автор: Hwang In Ho, Kim No Ma, Lee Min Ki, Park In Kyu, Yoon Sung Soo
Принадлежит: LG CHEM, LTD.

A pressure-sensitive adhesive composition for an optical film, a method of preparing a pressure-sensitive adhesive for an optical film, a polarizing plate and a liquid crystal display are provided. The pressure-sensitive adhesive composition may be effectively coated even when a coating solid content is controlled to be high. Therefore, productivity in formation of a pressure-sensitive adhesive or manufacture of an optical film such as a polarizing plate may be significantly increased, and excellent durability and reliability and re-workability may be exhibited after the pressure-sensitive adhesive is prepared. 1. A pressure-sensitive adhesive composition for an optical film , comprising:an acrylic polymer which comprises, as polymerized units, 2.5 to 5.5 parts by weight of monomer having hydroxyl group and 0.05 to 0.3 parts by weight of monomer having carboxyl group, and of which a weight average molecular weight of 700,000 to 1,200,000; anda multifunctional crosslinking agent,wherein a coating solid content is 20 weight % or more, and a gel fraction is 55 weight % to 85 weight % after being crosslinked.2. The pressure-sensitive adhesive composition for an optical film of claim 1 , wherein the acrylic polymer has a weight average molecular weight of 700 claim 1 ,000 to 1 claim 1 ,000 claim 1 ,000.3. The pressure-sensitive adhesive composition for an optical film of claim 1 , wherein the monomer having hydroxyl group is hydroxyalkyl(meth)acrylate or hydroxyalkyleneglycol(meth)acrylate.4. The pressure-sensitive adhesive composition for an optical film of claim 1 , wherein the monomer having carboxyl group is (meth)acrylic acid claim 1 , 2-(meth)acrylolyoxy acetate claim 1 , 3-(meth)acryloyloxy propylate claim 1 , 4-(meth)acryloyloxy butyrate claim 1 , acrylic acid dimer claim 1 , itaconic acid claim 1 , maleic acid or maleic acid anhydride.5. The pressure-sensitive adhesive composition for an optical film of claim 1 , wherein the acrylic polymer comprises claim 1 , ...

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Номер записи: 55
16-01-2014 дата публикации

ADHESIVE, ADHESIVE TAPE, AND DISPLAY DEVICE

Номер: US20140017451A1
Автор: HWANG Hyeon-Deuk, JUNG Myung-Jae, LIM Dong-Hyuk
Принадлежит:

An adhesive includes an acrylic copolymer synthesized from a composition including a solution polymerizable acryl-based monomer, a vinyl-based monomer that is copolymerizable with the solution polymerizable acryl-based monomer, a β-carboxylethyl acrylate monomer, and a reaction initiator, and a compound including at least three epoxy functional groups. 1. An adhesive , comprising: a solution polymerizable acryl-based monomer,', 'a vinyl-based monomer that is copolymerizable with the solution polymerizable acryl-based monomer,', 'a β-carboxylethyl acrylate monomer, and', 'a reaction initiator; and, 'an acrylic copolymer synthesized from a composition includinga compound including at least three epoxy functional groups.3. The adhesive as claimed in claim 2 , wherein the β-carboxylethyl acrylate monomer includes a first β-carboxylethyl acrylate monomer represented by Chemical Formula 1 and a second β-carboxylethyl acrylate monomer represented by Chemical Formula 1 claim 2 , and the first and second β-carboxylethyl acrylate monomers have different values for n.5. The adhesive as claimed in claim 1 , wherein the β-carboxylethyl acrylate monomer is included in an amount of about 1 to about 10 parts by weight based on 100 parts by weight of a total amount of monomers.6. The adhesive as claimed in claim 1 , wherein the compound including at least three epoxy functional groups is included in an amount of about 0.1 to about 10 parts by weight based on 100 parts by weight of a total amount of monomers.7. The adhesive as claimed in claim 1 , wherein:the solution polymerizable acryl-based monomer is included in an amount of about 70 to about 90 parts by weight based on 100 parts by weight of a total amount of monomers,the vinyl-based monomer is included in an amount of about 1 to about 10 parts by weight based on 100 parts by weight of a total amount of monomers, andthe reaction initiator is included in an amount of about 0.1 to about 5 parts by weight based on 100 parts by ...

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Номер записи: 56
06-02-2014 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND FILM FOR OPTICAL MEMBER

Номер: US20140037955A1
Автор: Kamoi Akira, Miyazaki Hideki
Принадлежит: NIPPON CARBIDE INDUSTRIES CO., INC.

The invention provides a pressure-sensitive adhesive composition including: an acrylic copolymer (A) containing 40% to 80% by mass of a constituent unit derived from a (meth)acrylic acid alkyl ester having a Calkyl group, 10% to 59.9% by mass of a constituent unit derived from a (meth)acrylic acid alkyl ester having a Calkyl group, and 0.1% to 10% by mass of a constituent unit derived from a monomer having a hydroxyl group; a polyoxyalkylene group-containing copolymer (B) having a weight average molecular weight of 3,000 to 100,000 and containing 60% by mass or less of a constituent unit derived from a polyoxyalkylene group-containing monomer having an average addition mole number of alkylene oxide units of 20 or more; an alkali metal salt (C); and a dimethylpolysiloxane compound (D) having a polyoxyalkylene group in a molecule and having an HLB value of 9 or less. 1. A pressure-sensitive adhesive composition comprising:{'sub': 1-5', '6-18, 'an acrylic copolymer (A) containing 40% to 80% by mass of a constituent unit derived from a (meth)acrylic acid alkyl ester having a Calkyl group, 10% to 59.9% by mass of a constituent unit derived from a (meth)acrylic acid alkyl ester having a Calkyl group, and 0.1% to 10% by mass of a constituent unit derived from a monomer having a hydroxyl group;'}a polyoxyalkylene group-containing copolymer (B) containing a constituent unit derived from a polyoxyalkylene group-containing monomer having an average addition mole number of alkylene oxide units of 20 or more and a constituent unit derived from a monomer other than the polyoxyalkylene group-containing monomer, the copolymer (B) having a content ratio of the constituent unit derived from the polyoxyalkylene group-containing monomer of 60% by mass or less, and the copolymer (B) having a weight average molecular weight of from 3,000 to 100,000;an alkali metal salt (C); anda dimethylpolysiloxane compound (D) having a polyoxyalkylene group in a molecule and having an HLB value of 9 or ...

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Номер записи: 57
06-02-2014 дата публикации

RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE LAYER, AND RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20140039128A1
Автор: ANDO Masahiko, KAMIYA Katsuhiko, Nonaka Takahiro, SHIGETOMI Kiyoe, Takarada Shou, Yamamoto Shinya
Принадлежит: NITTO DENKO CORPORATION

An object of the present invention is to provide a radiation-curable pressure-sensitive adhesive layer that satisfies both reworkability and adhesion reliance. Further, another object of the present invention is to provide a pressure-sensitive adhesive sheet containing the radiation-curable pressure-sensitive adhesive layer. The invention relates to a radiation-curable pressure-sensitive adhesive layer, which has an adhesive strength of 1.0 N/20 mm or less before radiation curing and an adhesive strength of 3.0 N/20 mm or more after radiation curing, and a peeling adhesive strength of 40.0 N/(20 mm×20 mm) or less before radiation curing, to an acrylic plate. 1. A radiation-curable pressure-sensitive adhesive layer , which has an adhesive strength of 1.0 N/20 mm or less before radiation curing and an adhesive strength of 3.0 N/20 mm or more after radiation curing , and a peeling adhesive strength of 40.0 N/(20 mm×20 mm) or less before radiation curing , with respect to an acrylic plate.2. The radiation-curable pressure-sensitive adhesive layer according to claim 1 , which is formed from a radiation-curable pressure-sensitive adhesive comprising a base polymer and a polyfunctional monomer.3. The radiation-curable pressure-sensitive adhesive layer according to claim 2 , wherein the base polymer is a (meth)acryl-based polymer and the polyfunctional monomer is a polyfunctional monomer having an ether bond and at least two radically polymerizable functional groups with a carbon-carbon double bond in the molecule.4. The radiation-curable pressure-sensitive adhesive layer according to claim 2 , wherein the content of the polyfunctional monomer is 0.1 to 50 parts by weight based on 100 parts by weight of the base polymer.5. A radiation-curable pressure-sensitive adhesive sheet having a support and the radiation-curable pressure-sensitive adhesive layer according to formed on at least one side of the support.6. The radiation-curable pressure-sensitive adhesive sheet according ...

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Номер записи: 58
13-02-2014 дата публикации

DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET AND PORTABLE ELECTRONIC DEVICE

Номер: US20140044915A1
Автор: HIGUCHI Naoaki, NIWA Masahito, YAMANAKA Eiji
Принадлежит: NITTO DENKO CORPORATION

A double-sided pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer including an acrylic polymer (A) containing 9 to 30 mass % of building blocks derived from at least one kind of polar monomer. 1. A double-sided pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer including an acrylic polymer (A) containing 9 to 30 mass % of building blocks derived from at least one kind of polar monomer.2. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the double-sided pressure-sensitive adhesive sheet is configured for use in a portable electronic device to fix a member installed in the portable electronic device.3. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the double-sided pressure-sensitive adhesive sheet has a shape selected from the group consisting of a tape shape claim 1 , a slip shape claim 1 , a U shape claim 1 , an L shape claim 1 , and a frame shape.4. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the acrylic polymer (A) contains building blocks derived from (meth)acrylic acid alkyl ester including any one of a linear-chain alkyl group with a carbon number of 1 to 20 and a branched-chain alkyl group with a carbon number of 1 to 20.5. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the at least one kind of polar monomer is selected from the group consisting of a carboxyl group-containing monomer claim 1 , a hydroxyl group-containing monomer claim 1 , an amide group-containing monomer claim 1 , and a heterocycle-containing vinyl monomer.6. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the acrylic polymer (A) contains building blocks derived from a polyfunctional monomer including at least two polymerizable functional groups.7. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive ...

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Номер записи: 59
27-02-2014 дата публикации

Alkaline hydrolysis resistant adhesive

Номер: US20140053967A1
Автор: Michael Lindsay Boyd, Richard Clinch
Принадлежит: Interface Australia Pty Ltd, RLA POLYMERS PTY LTD

There is described herewith an alkaline hydrolysis resistant carpet adhesive comprising an n-butyl acrylate acrylic polymer.

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Номер записи: 60
06-03-2014 дата публикации

Pressure-sensitive adhesive composition

Номер: US20140065324A1
Автор: Ki Seok Jang, Min Soo Park, Se Woo Yang, Suk Ky Chang
Принадлежит: LG Chem Ltd

The present invention relates to a pressure sensitive adhesive composition, a polarizer and a liquid crystal display device. The present invention may provide a pressure sensitive adhesive which can have excellent stress relaxation characteristic to effectively inhibit light leakage by dimension change of optical films such as polarizing plates. In addition, a pressure sensitive adhesive having excellent physical properties such as adhesion durability and workability may be provided.

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Номер записи: 61
06-03-2014 дата публикации

DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET

Номер: US20140065403A1
Автор: HIGUCHI Naoaki, YAMANAKA Eiji
Принадлежит: NITTO DENKO CORPORATION

A double-sided pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer is substantially free of bubbles and includes an acrylic polymer (A) and hollow microspheres. The acrylic polymer (A) includes a monomer composition containing (meth)acrylic acid alkyl ester (a1) and a polar group-containing copolymerizable monomer (a2) with polymerizable unsaturated double bond. The (meth)acrylic acid alkyl ester (a1) includes a linear-chain alkyl group with a carbon number of 1 to 20 and a branched-chain alkyl group with a carbon number of 1 to 20. The monomer composition contains the polar group-containing copolymerizable monomer (a2) in an amount of 5 to 9 parts by mass, based on 100 parts by mass of a total of the (meth)acrylic acid alkyl ester (a1) and the polar group-containing copolymerizable monomer (a2). 1. A double-sided pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer , the pressure-sensitive adhesive layer being substantially free of bubbles and comprising:an acrylic polymer (A) including a monomer composition containing (meth)acrylic acid alkyl ester (a1) and a polar group-containing copolymerizable monomer (a2) with polymerizable unsaturated double bond, the (meth)acrylic acid alkyl ester (a1) including any one of a linear-chain alkyl group with a carbon number of 1 to 20 and a branched-chain alkyl group with a carbon number of 1 to 20, the monomer composition containing the polar group-containing copolymerizable monomer (a2) in an amount of 5 to 9 parts by mass, based on 100 parts by mass of a total of the (meth)acrylic acid alkyl ester (a1) and the polar group-containing copolymerizable monomer (a2); andhollow microspheres.2. The double-sided pressure-sensitive adhesive sheet according to claim 1 , wherein the pressure-sensitive adhesive layer includes the hollow microspheres in an amount of 1 to 15 parts by mass claim 1 , based on 100 parts by mass of the acrylic ...

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Номер записи: 62
03-04-2014 дата публикации

WATER-BORNE ADHESIVES

Номер: US20140093740A1
Автор: Chen Mai
Принадлежит: Rohm and Haas Company

There is provided a method of bonding a first substrate to a second substrate, wherein said method comprises 2. The method of wherein said first substrate or said second substrate is a polymer film that comprises one or more slip agent3. The method of wherein said slip agent is a fatty amide.4. The method of wherein said first substrate or said second substrate is a polymer film that comprises low density polyethylene and that comprises one or more fatty amide.5. The composition of claim 1 , wherein said waterborne adhesive composition further comprises one or more water dispersible polyisocyanate.6. The composition of claim 1 , wherein the amount of polymerized units of all ionizable monomers in said vinyl polymer is 0% to 0.4% by weight based on the weight of said vinyl polymer.7. The composition of claim 1 , wherein said amide monomer is acrylamide.8. A bonded article formed by the method of .9. The bonded article of claim 8 , wherein said first substrate or said second substrate is a polymer film that comprises low density polyethylene and that comprises one or more fatty amide. The following is the background of the invention.It is often desired to bond two or more substrates together using an adhesive composition in situations in which one or more of the substrates contains a slip agent. For example, a bonded article may be formed by bonding two substrates made of polymer together when one or both of the substrates is made of a polymer that contains one or more fatty amide as a slip agent. Such slip agents are sometimes added to a polymer so that the surface of a substrate made from that polymer will have relatively low coefficient of friction. One problem that arises in such systems is that the slip agent may migrate from the substrate into the adhesive, thereby depleting the amount of slip agent in the substrate and consequently increasing the coefficient of friction of that substrate.One method that has been used in the past to reduce depletion of slip ...

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Номер записи: 63
10-04-2014 дата публикации

ADHESIVE FILM, ADHESIVE COMPOSITION FOR THE SAME, AND DISPLAY MEMBER INCLUDING THE SAME

Номер: US20140099495A1
Автор: CHO Ik Hwan, HAN In Cheon, Kim Chan Woo, KIM Ki Yong, KIM Lee June
Принадлежит: CHEIL INDUSTRIES INC.

An adhesive film includes a cured product of a (meth)acrylic copolymer and has a refractive index from about 1.5 to about 1.6. An adhesive composition for preparing the adhesive film includes a (meth)acrylic copolymer of a monomer mixture. A display member includes the adhesive film coated on one or more surfaces of an optical film. 1. An adhesive film , comprising a cured reaction product of an adhesive composition , the adhesive composition comprising a (meth)acrylic copolymer of a monomer mixture , and the adhesive film having a refractive index from about 1.5 to about 1.6.2. The adhesive film according to claim 1 , wherein the monomer mixture comprises a monomer having at least two aromatic groups.3. The adhesive film according to claim 1 , wherein the monomer mixture comprises about 20 wt % or more of a monomer having at least two aromatic groups claim 1 , based on a total weight of the monomer mixture.6. The adhesive film according to claim 2 , wherein the monomer having at least two aromatic groups comprises at least one of phenoxybenzyl (meth)acrylate and phenylphenoxyethyl (meth)acrylate.7. The adhesive film according to claim 1 , wherein the monomer mixture comprises about 10 wt % to about 50 wt % of a (meth)acrylate monomer having a Cto Calkyl group claim 1 , about 1 wt % to about 30 wt % of a (meth)acrylate monomer having an alicyclic group claim 1 , about 10 wt % to about 30 wt % of a monomer having a hydroxy group claim 1 , and about 20 wt % to about 50 wt % of a monomer having at least two aromatic groups claim 1 , each based on a total weight of the monomer mixture.8. The adhesive film according to claim 7 , wherein the monomer mixture further comprises about 0.1 wt % to about 10 wt % of a monomer having a carboxylic acid group claim 7 , based on a total weight of the monomer mixture.9. The adhesive film according to claim 1 , wherein the (meth)acrylic copolymer has a viscosity from about 1 claim 1 ,000 cPs to about 50 claim 1 ,000 cPs at 25° C.10. ...

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Номер записи: 64
10-04-2014 дата публикации

Polymer composition, adhesive composition, temperature-responsive sheet produced using said polymer composition, and cold-release adhesive sheet produced using said adhesive composition

Номер: US20140100335A1
Автор: Asami DOI, Atsushi Takashima
Принадлежит: Nitto Denko Corp

The purpose of the present invention is to provide a polymer composition which enables the steady and easy production of a temperature-responsive sheet. Provided is a polymer composition comprising a water-dispersible side-chain crystalline polymer and a water-dispersible amorphous polymer.

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Номер записи: 65
07-01-2016 дата публикации

SELECTIVE SYNTHESIS OF 2-OCTYL ACRYLATE BY ACID CATALYZED ESTERIFICATION OF 2-OCTANOL AND ACRYLIC ACID

Номер: US20160002140A1
Автор: Clem Tabitha A., Colby Joshua L., Hutt Aaron E., Spawn Terence D., Teply Wade T.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

A method of making 2-octyl acrylate comprising reacting 2-octanol with acrylic acid in the presence of an acid catalyst and added water is described. The 2-octanol may be derived from renewable resources, such as castor oil. The method is efficient and provides selectivity for 2-octyl acrylate. 1. A method of making 2-octyl acrylate comprising reacting 2-octanol with acrylic acid in the presence of an acid catalyst and added water.2. The method of wherein the acid catalyst comprises a heterogeneous acid catalyst.3. The method of wherein functional groups on the acid catalyst comprise sulfonic acid.4. The method of wherein the acid catalyst comprises a cation exchange resin.5. The method of wherein the 2-octanol and acrylic acid are provided in a 3:1 to a 1:3 molar ratio.6. The method of wherein the 2-octyl acrylate comprises between 50% and 100% by weight biobased carbon claim 1 , as determined using ASTM D6866-12.7. The method of wherein the 2-octanol is derived from castor oil.8. The method of wherein the added water comprises 1 to 5 percent by weight of the total reactants.9. The method of wherein the reaction is performed at a temperature of 60° C. to 130° C.10. The method of wherein the reaction is performed in a continuous reactor at a weight hourly space velocity (WHSV) of 0.1 hto 3 h claim 1 , wherein the WHSV is a ratio of mass flow of 2-octanol and acrylic acid entering the system per hour to the mass of the acid catalyst.11. The method of wherein 15 to 70% by weight of the 2-octanol is converted to 2-octyl acrylate.12. The method of wherein the acid catalyst comprises a liquid homogeneous acid catalyst.13. The method of wherein the 2-octanol has a C/C ratio of 1.0×10or higher.14. 2-octyl acrylate made by a method comprising reacting 2-octanol with acrylic acid in the presence of an acid catalyst and added water.15. The 2-octyl acrylate of wherein the acid catalyst comprises a cation exchange resin.16. The 2-octyl acrylate of wherein the 2-octanol and ...

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Номер записи: 66
07-01-2016 дата публикации

CONDUCTIVE LAMINATE

Номер: US20160002502A1
Автор: KIM Hyun Cheol, Kwon Yoon Kyung, PARK Hyon Gyu
Принадлежит:

Provided are a conductive laminate, a method of manufacturing the same, and an electronic device including the same. The conductive laminate may prevent bubbles from being generated from a pressure-sensitive adhesive layer during thermal treatment for crystallizing a conductive layer. 1. A conductive laminate , comprising:a base layer;a pressure-sensitive adhesive layer formed under the base layer, and comprising a crosslinkable polymer comprising a monomer having a boiling point of 150° C. or less, or 200° C. or more as a polymerization unit; anda conductive layer formed on the base layer.2. The laminate according to claim 1 , further comprising:a second base layer formed under the pressure-sensitive adhesive layer; anda second conductive layer formed under the second base layer.3. The laminate according to claim 1 , wherein the crosslinkable polymer does not comprise a monomer having a boiling point of more than 150° C. and less than 200° C.4. The laminate according to claim 1 , wherein the monomer having a boiling point of 150° C. or less claim 1 , or 200° C. or more is ethyl (meth)acrylate claim 1 , n-propyl (meth)acrylate claim 1 , isopropyl (meth)acrylate claim 1 , n-butyl (meth)acrylate claim 1 , pentyl (meth)acrylate claim 1 , 2-ethylhexyl (meth)acrylate claim 1 , 2-hydroxyethyl (meth)acrylate claim 1 , 2-hydroxypropyl acrylate claim 1 , 2-hydroxybutyl acrylate claim 1 , 4-hydroxybutyl acrylate claim 1 , n-octyl (meth)acrylate claim 1 , isooctyl (meth)acrylate claim 1 , isononyl (meth)acrylate claim 1 , lauryl (meth)acrylate claim 1 , tetra decyl (meth)acrylate claim 1 , methyl (meth)acrylate claim 1 , t-butyl (meth)acrylate claim 1 , isobornyl acrylate claim 1 , cyclohexyl (meth)acrylate claim 1 , acrylic acid claim 1 , maleic acid claim 1 , styrene claim 1 , vinyl acetate claim 1 , isopropyl methacrylate claim 1 , acrylonitrile dihydrodicyclo pentadienyl acrylate claim 1 , N-vinylformamide claim 1 , benzyl acrylate claim 1 , diacetone acrylamide claim 1 , ...

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Номер записи: 67
07-01-2016 дата публикации

PRESSURE SENSITIVE ADHESIVE AND IMAGE DISPLAY DEVICE USING THE SAME

Номер: US20160002505A1
Автор: Hasegawa Yuki, Hikita Takami, Mizutani Masaki, Motegi Yusuke, Takarada Shou, Yamamoto Shinya
Принадлежит: NITTO DENKO CORPORATION

The pressure sensitive adhesive of the present invention includes an acryl-based base polymer and a hydrogenated terpene phenolic resin having a softening point of 70° C. to 150° C. The hydrogenated terpene phenolic resin preferably has a terpene molar ratio of 0.1 to 0.7. The content of acryl-based base polymer is preferably 45 to 95 parts by weight based on total 100 parts by weight of the pressure sensitive adhesive composition. In addition, total content of the acryl-based base polymer and the hydrogenated terpene phenolic resin is preferably 70 parts by weight or more. The pressure sensitive adhesive of the present invention is hardly clouded even under a high-temperature and high-humidity environment, and has level difference followability, thus can be used by disposing between a front transparent plate and a touch panel, between a front transparent plate and an image display panel or between a touch panel and an image display panel. 1. A pressure sensitive adhesive configured to be disposed between a front transparent plate and a touch panel , between a front transparent plate and an image display panel or between a touch panel and an image display panel , whereinthe pressure sensitive adhesive contains an acryl-based base polymer, and a hydrogenated terpene phenolic resin having a softening point of 70° C. to 150° C.,the hydrogenated terpene phenolic resin has a terpene molar ratio of 0.1 to 0.7, andbased on total 100 parts by weight of a pressure sensitive adhesive composition, a content of the acryl-based base polymer is 45 to 95 parts by weight, and a total content of the acryl-based base polymer and the hydrogenated terpene phenolic resin is 70 parts by weight or more.2. The pressure sensitive adhesive according to claim 1 , whereinthe acryl-based base polymer has a polar monomer unit content of 3 to 50% by weight based on a total amount of constituent monomer components.3. An image display device comprising: an image display panel; at least one of a ...

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Номер записи: 68
07-01-2016 дата публикации

ADHESIVE SHEET, LAMINATE FOR TOUCH PANEL, AND CAPACITANCE-TYPE TOUCH PANEL

Номер: US20160002506A1
Автор: MITAMURA Yasuhiro, OGIKUBO Shinya, SHIBATA Michihiro
Принадлежит: FUJIFILM Corporation

In an adhesive sheet, temperature dependence of a relative dielectric constant that is determined by a test for evaluating temperature dependence is equal to or less than 30%, and a 180° peel strength determined by a test for evaluating adhesiveness is equal to or greater than 0.20 N/mm. The adhesive sheet can inhibit the occurrence of malfunctioning of a capacitance-type touch panel in an environment of a wide temperature range from a low temperature to a high temperature, and can be included in a laminate for a touch panel and a capacitance-type touch panel. 1. An adhesive sheet ,wherein temperature dependence of a relative dielectric constant that is determined by a test for evaluating temperature dependence is equal to or less than 30%,a 180° peel strength determined by a test for evaluating adhesiveness is equal to or greater than 0.20 N/mm,in the test for evaluating temperature dependence, the adhesive sheet is sandwiched between aluminum electrodes, a temperature of the adhesive sheet is increased by 20° C. from −40° C. to 80° C., a relative dielectric constant of the adhesive sheet at each temperature is calculated by measuring impedance at 1 MHz, a minimum value and a maximum value are selected from calculated relative dielectric constants, and a value (%) calculated by an equation of [(maximum value−minimum value)/minimum value×100] is determined to be the temperature dependence, andin the test for evaluating adhesiveness, the adhesive sheet is bonded to a glass substrate, and the 180° peel strength of the adhesive sheet is determined based on JIS 0237.2. The adhesive sheet according to claim 1 ,wherein the maximum value of the relative dielectric constants calculated at temperatures increased by 20° C. from −40° C. to 80° C. is equal to or less than 3.8.3. The adhesive sheet according to claim 1 , comprising:an adhesive in which a ratio of a value of inorganicity to a value of organicity is 0.05 to 0.3,wherein the ratio represents the value of ...

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Номер записи: 69
07-01-2016 дата публикации

Curable Acrylate or Methacrylate Compositions

Номер: US20160002507A1
Автор: Houlihan James, Kneafsey Brendan, SWEENEY Nigel
Принадлежит:

A curable composition based on a curable acrylate or methacrylate component; an organoborane initiator component; a vinyl ether component; and an activator for the organoborane component. The composition exhibits good storage stability and good bonding properties when used to bond low surface energy substrates. 1. A curable composition comprising:a curable acrylate or methacrylate component;an organoborane initiator component;a vinyl ether component; andan activator for the organoborane component.2. A curable composition according to wherein the vinyl ether component comprises a vinyl ether molecule which has at least two vinyl ether groups.3. A composition according to wherein the vinyl ether component comprises at least one of 1 claim 1 ,4-butanediol divinyl ether claim 1 , diethyleneglycol divinyl ether claim 1 , and triethyleneglycol divinyl ether.4. A curable composition according to in the form of a two-part composition comprising:a curable acrylate or methacrylate component in at least one of the first part or the second part;a first part comprising an organoborane initiator component and a vinyl ether component; anda second part comprising an activator for the organoborane component.5. A composition according to wherein the organoborane initiator component comprises a trialkyl borane.6. A composition according to wherein the organoborane initiator component comprises a borane:amine complex.7. A composition according to wherein the organoborane initiator component comprises a trialkylborane:amine complex.8. A composition according to wherein the organoborane initiator component is present in an amount from about 0.1 to about 10% weight percentage based on the total weight of the composition.9. A composition according to wherein the activator for the organoborane compound is selected from the group consisting of Lewis acids claim 1 , carboxylic acids claim 1 , phosphoric acids claim 1 , anhydrides and isocyanates and combinations thereof.10. A composition ...

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Номер записи: 70
05-01-2017 дата публикации

ADHESIVE FILM AND DISPLAY MEMBER COMPRISING THE SAME

Номер: US20170002237A1
Автор: CHO Ik Hwan, HAN Jae Hyun, Kang Ji Won, Kim Il Jin, KIM Jee Hee, KIM Ji Ho, KIM Yong Tae, Kwak Byeong Do, LEE Gwang Hwan, Lee Woo Jin, Moon Hyung Rang, MUN Sung Hyun, SHIN Seon Hee
Принадлежит:

An adhesive film and a display member including the same are disclosed. The adhesive film is formed of an adhesive composition including: a copolymer of a monomer mixture including a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles. The adhesive film has a creep at −20° C. of about 50 μm to about 100 μm and a gel fraction of about 50% to about 75%. 1. An adhesive film formed of an adhesive composition comprising: a copolymer of a monomer mixture comprising a hydroxyl group-containing (meth)acrylate and a comonomer; and nanoparticles , wherein the adhesive film has a creep at −20° C. of about 50 μm to about 100 μm and a gel fraction of about 50% to about 75%.2. The adhesive film according to claim 1 , wherein the hydroxyl group-containing (meth)acrylate is present in an amount of about 10 wt % to about 40 wt % in the monomer mixture.3. The adhesive film according to claim 1 ,wherein the nanoparticles have an average particle diameter of about 10 nm to about 400 nm, andwherein the nanoparticles are present in an amount of about 0.1 parts by weight to about 10 parts by weight relative to 100 parts by weight of the monomer mixture.4. The adhesive film according to claim 1 , wherein the adhesive film has a creep of about 60 μm to about 350 μm at 25° C.5. The adhesive film according to claim 1 ,wherein the adhesive film has a T-peel strength of about 400 gf/in to about 4,000 gf/in with respect to a corona-treated PET film at 25° C., andwherein the adhesive film has a T-peel strength of about 200 gf/in to about 3,000 gf/in with respect to a corona-treated PET film at 60° C.6. The adhesive film according to claim 1 ,wherein the adhesive film has a storage modulus of about 10 kPa to about 100 kPa at 25° C., andwherein the adhesive film has a storage modulus of about 10 kPa to about 100 kPa at 80° C.7. The adhesive film according to claim 1 , wherein the adhesive film has a ratio of storage modulus at −20° C. to storage modulus at 25° C. of about 1: ...

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Номер записи: 71
02-01-2020 дата публикации

Adhesive composition, adhesive agent, adhesive tape, and airtight waterproof adhesive tape

Номер: US20200002579A1
Автор: Akira IKEBATA, Toshifumi Akui
Принадлежит: Mitsubishi Chemical Corp

An adhesive composition contains an acrylic resin (A) obtained by copolymerizing a copolymerization formulation (a), the copolymerization formulation (a) including predetermined proportions of: (a1) at least one selected from the group consisting of a (meth)acrylate having a C1 to C3 alkyl group, t-butyl (meth)acrylate, a cyclic structure-containing monomer, and a C3 to C10 vinyl ester monomer; (a2) a (meth)acrylate having a C4 to C24 alkyl group (excluding t-butyl (meth)acrylate); (a3) a terminal carboxyl-containing monomer having a specific structure; and (a4) (meth)acrylic acid. The adhesive composition provides firm adhesion to a higher-polarity adherend, a lower-polarity adherend, a poor-adhesion adherend such as of ethylene propylene diene rubber (EPDM), and a rough surface, and is excellent in holding force and adhesiveness in a high-temperature/high-humidity environment, with reduced susceptibility to deterioration in adhesiveness over time.

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Номер записи: 72
02-01-2020 дата публикации

ELECTRICALLY DEBONDABLE ADHESIVE COMPOSITION, ADHESIVE SHEET, AND ADHERED BODY

Номер: US20200002581A1
Автор: Akamatsu Kaori, Akazawa Koji, AWANE Ryo, HIRAO Akira, MIZOBATA Kaori, Shimizu Yosuke, Tanaka Akiko, Yokoyama Junji
Принадлежит:

An object of the present invention is to provide an electrically debondable composition for forming an electrically debondable adhesive layer suitable for suppressing corrosion of a metal adherend surface. The present invention further provides an adhesive sheet having the electrically debondable adhesive layer, and an adhered body including the adhesive sheet. An electrically debondable composition of the present invention includes a polymer, an ionic liquid, and at least one additive selected from the group consisting of a carbodiimide compound, an adsorptive inhibitor and a chelate-forming metal deactivator. 1. An electrically debondable adhesive composition comprisinga polymer,an ionic liquid, andat least one additive selected from the group consisting of a carbodiimide compound, an adsorptive inhibitor and a chelate-forming metal deactivator.2. The electrically debondable adhesive composition according to claim 1 , wherein the carbodiimide compound is contained in an amount of 0.01 parts by mass or more and 10 parts by mass or less claim 1 , per 100 parts by mass of the polymer.3. The electrically debondable adhesive composition according to claim 1 , wherein the adsorptive inhibitor contains an alkylamine claim 1 , and the content of the alkylamine is 0.01 parts by mass or more and 20 parts by mass or less claim 1 , per 100 parts by mass of the polymer.4. The electrically debondable adhesive composition according to claim 1 , wherein the adsorptive inhibitor contains a carboxylic acid salt or a carboxylic acid derivative claim 1 , and the total content of the carboxylic acid salt and the carboxylic acid derivative is 0.01 parts by mass or more and 10 parts by mass or less claim 1 , per 100 parts by mass of the polymer.5. The electrically debondable adhesive composition according to claim 1 , wherein the adsorptive inhibitor contains an alkyl phosphoric acid salt claim 1 , and the content of the alkyl phosphoric acid salt is 0.01 parts by mass or more and 10 ...

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Номер записи: 73
07-01-2021 дата публикации

BACK-GRINDING TAPE

Номер: US20210002518A1
Автор: KIM Eun Yeong, Kim Sang Hwan, KIM Sera, LEE Kwang Joo, Park Sung Chan, YOON Mi Seon
Принадлежит: LG CHEM, LTD.

A back grinding tape including a hard coating layer, an intermediate layer including a polyurethane-based resin, and an adhesive layer provided has an excellent water resistance, thus easily protecting patterns, and has an excellent adhesion between each layer, and thus each layer is not separated in the process of removing the tape, such that the back grinding tape is suitable for a back grinding process. 1. A back grinding tape comprising: a hard coating layer; an intermediate layer comprising a polyurethane-based resin; and an adhesive layer ,wherein a sum of polar energy values of the hard coating layer and the intermediate layer calculated according to Mathematical Equation 1 is 13 dyne/cm to 17 dyne/cm, and {'br': None, 'Polar Energy (dyne/cm)=Surface free energy (dyne/cm)−Dispersion (dyne/cm)\u2003\u2003[Mathematical Equation 1]'}, 'the polar energy value of the intermediate layer calculated according to the Mathematical Equation 1 is 3.5 dyne/cm or less{'sub': 2', '2, 'wherein, in the Equation, the surface free energy and the dispersion are measured using water and diiodomethane (CHI) solutions according to a Wu-harmonic method.'}2. The back grinding tape according to claim 1 , wherein the sum of the polar energy values of the hard coating layer and the intermediate layer is 13.3 dyne/cm to 16 dyne/cm claim 1 , and the polar energy value of the intermediate layer is 3.0 dyne/cm or less.3. The back grinding tape according to claim 1 , wherein a thickness of the hard coating layer is 0.1 μm to 10 μm.4. The back grinding tape according to claim 1 , wherein a thickness of the intermediate layer ee is 50 μm to 500 μm.5. The back grinding tape according to claim 1 , wherein a thickness of the adhesive layer is 0.5 μm to 60 μm.6. The back grinding tape according to claim 1 , wherein the hard coating layer comprises one or more selected from the group consisting of a polyester-based compound claim 1 , an acryl-based compound claim 1 , a modified polyurethane-based ...

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Номер записи: 74
07-01-2021 дата публикации

Substrate-Free Adhesive Tape

Номер: US20210002524A1
Автор: Ji Hye Kim, Jun Hyoung Park, Ki Seung Seo, Kyung Jun Yoon, Sang Hwan Kim
Принадлежит: LG Chem Ltd

A substrate-free adhesive tape that is excellent in adhesive physical properties and is suitable for a continuous process is provided. The substrate-free adhesive tape includes a release film, and an adhesive layer provided on one surface of the release film and the adhesive layer containing a cured product of an adhesive composition, wherein when the release film is fixed on the outer surface of a semicircular tip part of a jig, the semicircular tip part having a radius of 22.5 mm, a breaking distance of the adhesive layer is 110 mm or less when the adhesive layer is stretched at a rate of 20 m/min from a semicircular center of the semicircular tip part toward an outermost direction of the semicircular tip part.

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Номер записи: 75
07-01-2021 дата публикации

Cosmetic Adhesive Compositions

Номер: US20210002525A1
Автор: LEE Wilson, Ridini Jennifer
Принадлежит:

Single phase cosmetic adhesive compositions that are flexible and resistant to water below a selected temperature, 43° C. for example. The adhesive compositions wear well, are smudge and flake resistant, as well as oil resistant, making them very suitable for long wear without adhesive failure. Adhesive compositions according to the invention comprise specific combinations of acrylates/VA copolymer and acrylates copolymer in a cosmetically acceptable base or delivery vehicle. Adhesive compositions according to the invention are hydrophilic and easily removed when scrubbed with water above a certain temperature, but not as easily removed with water below that temperature. The adhesive compositions are easy to manufacture, flexible and comfortable, and suitable for use on skin, lips, hair and nails, particularly to secure strips of false eyelashes and eyebrows, as well as individual lash and brow extensions. Cosmetic adhesives of the present invention may also be used to affix glitter or extensions to skin, hair, lips, or nails, and other cosmetic products to keratinic surfaces. 1. A single phase , aqueous cosmetic adhesive composition comprising , by total weight of the composition:20% to 30% of acrylates/VA copolymer;0.5% to 2.5% of acrylates copolymer;wherein the ratio of the acrylates/VA copolymer to the acrylates copolymer is in the range of 12:1 to 60:1;40% to 65% of water;no more than 0.5% of hydrophobic oils or waxes;no more than 4% glycol;no more than 3% of surfactants and emulsifiers;no more than 0.25% of clay particles or undissolved particulate material; andno more than 0.5% of polyurethane.2. The adhesive composition of having no hydrophobic oils or waxes.3. The adhesive composition of having no surfactants or emulsifiers.4. The adhesive composition of having no clay particles or undissolved particulate material.5. The adhesive composition of having no polyurethane.6. The adhesive composition of having less than 0.5% glycol.7. The adhesive composition of ...

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Номер записи: 76
03-01-2019 дата публикации

CURABLE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE, AND THE METHOD FOR MAKING THE SAME

Номер: US20190002734A1
Автор: Zhang Wenjie
Принадлежит:

Curable adhesive compositions that can be used to prepare the pressure-sensitive adhesives, and methods of making the pressure-sensitive adhesives are provided. More particularly, the pressure-sensitive adhesives contain (a) a (meth)acrylate copolymer having a weight average molecular weight greater than 500,000 grams/mole (Daltons), (b) a high glass transition temperature (meth)acrylate polymer tackifier having a Tg of at least 5° C. and (c) a low glass transition temperature (meth)acrylate polymer tackifier having a Tg no greater than 0° C. The pressure-sensitive adhesives advantageously are prepared by ultraviolet (UV) curing a curable adhesive composition that contains minimal or no organic solvents. 1. A curable adhesive composition comprising: (1) a non-tertiary alkyl acrylate; and', '(2) an acid-functionalized ethylenically unsaturated monomer; and, '(a) a first syrup polymer formed from a first reaction mixture, the first reaction mixture comprising'} (i) 1 to 30 weight percent of a partially polymerized acid-functionalized (meth)acrylate copolymer based on a total weight of monomers in the first reaction mixture, wherein the partially polymerized acid-functionalized (meth)acrylate copolymer has a weight average molecular weight greater than 500,000 grams/mole (Daltons); and', '(ii) 70 to 99 weight percent of un-reacted monomers based on the total weight of monomers in the first reaction mixture; and, 'wherein the first syrup polymer comprises'}(b) a high glass transition temperature (meth)acrylate polymer tackifier having a glass transition temperature of at least 5° C.; and(c) a low glass transition temperature (meth)acrylate polymer tackifier having a glass transition temperature no greater than 0° C.; and(d) an ultraviolet photoinitiator.2. The curable adhesive composition of claim 1 , wherein the weight average molecular weight of the high glass transition temperature (meth)acrylate polymer tackifier is in a range of 10 claim 1 ,000 to 150 claim 1 ,000 ...

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Номер записи: 77
03-01-2019 дата публикации

PERMANENT ADHESIVE COMPOSITION FOR IMAGE SENSORS, AND BONDING METHOD AND LAMINATE USING SAME

Номер: US20190002744A1
Автор: Hayashi Kentaro, Isozaki Masayoshi, Maeda Masatoshi, Takeuchi Hiroaki, YAMADAYA Tokunori
Принадлежит:

A permanent adhesive composition for image sensors which provides an adhesive layer having excellent heat resistance and thermal shock resistance, and a bonding method and laminate using the permanent adhesive composition. The permanent adhesive composition for image sensors contains a thermosetting or photocurable resin containing a specific bifunctional (meth)acrylic acid ester-derived structural unit, a polymerizable monomer, and an antioxidant, and used to bond together a substrate and a support for the substrate. The bonding method includes bonding together a substrate and a support for the substrate using the permanent adhesive composition. The laminate is provided with a substrate, a support for the substrate, and an adhesive layer for bonding the substrate and the support together, and the adhesive layer is formed of the permanent adhesive composition. 2. The permanent adhesive composition according to claim 1 ,wherein the antioxidant (C) includes a phenol-based antioxidant.4. The permanent adhesive composition according to claim 1 , wherein the substrate includes a silicon substrate or a sapphire substrate.5. The permanent adhesive composition according to claim 1 , wherein the support body includes a glass substrate.6. A bonding method comprising bonding a substrate and a support body for the substrate to each other claim 1 , using the permanent adhesive composition according to .7. A laminate comprising a substrate claim 1 , a support body for the substrate claim 1 , and an adhesion layer that bonds the substrate and the support body claim 1 , wherein the adhesion layer is formed from the permanent adhesive composition according to . The present invention relates to a permanent adhesive composition for image sensors, and a bonding method and a laminate using the permanent adhesive composition.Patent Document 1 describes an adhesive composition including a hydrocarbon resin and a predetermined solvent, as an adhesive composition having excellent product ...

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Номер записи: 78
01-01-2015 дата публикации

Pressure-sensitive adhesive, pressure-sensitive adhesive layer, and pressure-sensitive adhesive sheet

Номер: US20150004407A1
Автор: Aimi Matsuura, Akiko Tanaka, Masatsugu Higashi, Tetsuo Inoue
Принадлежит: Nitto Denko Corp

The pressure-sensitive adhesive of the invention contains a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 40 to 99.5% by weight of an alkyl (meth)acrylate having a branched alkyl group of 6 to 9 carbon atoms at an ester end and more than 0 to 40% by weight of a cyclic nitrogen-containing monomer having a six or more-membered cyclic nitrogen-containing structure. The pressure-sensitive adhesive of the invention can form a pressure-sensitive adhesive layer having a satisfactory level of adhesion performance and optical properties, a low dielectric constant, and moisture resistance reliability.

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Номер записи: 79
13-01-2022 дата публикации

PACKAGED VISCOELASTIC POLYMER SUBSTANCE

Номер: US20220010079A1
Автор: BRANDES Kay, Lass Volker, MASSOW Klaus
Принадлежит: TESA SE

Packaged viscoelastic polymer substances and methods for the production of the packaged viscoelastic polymer substances are provided. The packaged viscoelastic polymer substances are further processable under the influence of heat and shear. 1. A method for producing a packaged viscoelastic polymer substance , the method comprising:a) plastifying a viscoelastic polymer substance at elevated temperatures, the viscoelastic polymer substance being a polymer substance based on poly(meth)acrylates having a weight-average molecular weight of 500,000 g/mol or more;b) continuously dispensing the plastified viscoelastic polymer substance into a protective polymer film, that has no self-adhesive properties and which, before being filled with the plastified viscoelastic polymer substance, has been brought into a tubular form, to give a strandlike polymer assembly having a diameter of 55 to 70 mm, a core of the plastified viscoelastic polymer substance, and a shell of the protective polymer film, wherein a fraction of the protective polymer film, based on a total weight of the protective polymer film and the plastified viscoelastic polymer substance, is less than 1.0 wt %, and wherein the plastified viscoelastic polymer substance has a viscosity of more than 100 Pas at the instant of being dispensed into the tubular protective polymer film;c) converting the strandlike polymer assembly into a flattened strandlike polymer assembly with a smallest cross-section having a ratio of width to height of about 2:1 to 7:1;d) cooling the flattened strandlike polymer assembly to a temperature at which the strandlike polymer assembly is still plastically deformable; ande) subsequently winding the flattened strandlike polymer assembly onto a reel, wherein the strandlike polymer assembly wound onto the reel has a length of more than 30 meters.2. The method of claim 1 , wherein the converting of the strandlike polymer assembly into the flattened strandlike polymer assembly in c) is carried out ...

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Номер записи: 80
02-01-2020 дата публикации

OPTICALLY CLEAR RESIN COMPOSITION AND DISPLAY DEVICE INCLUDING THE SAME

Номер: US20200006698A1
Автор: Cho Yong Youl, YOU Jong Sung
Принадлежит:

An optically transparent adhesive resin composition includes an ester polymer which contains an ester bond within a repeating unit, a (meth)acrylic ester polymer which contains a (meth)acrylic ester bond within the repeating unit, a rubber polymer, and a crystalline polymer. 1. An optically transparent adhesive resin composition , comprising:an ester polymer comprising an ester bond within a repeating unit;a (meth)acrylic ester polymer comprising a (meth)acrylic ester bond within the repeating unit;a rubber polymer; anda crystalline polymer.2. The optically transparent adhesive resin composition of claim 1 , wherein the crystalline polymer comprises at least one of polypropylene claim 1 , syndiotatic polystyrene claim 1 , polyamide claim 1 , polycaprolactone claim 1 , polycarbonate-diol claim 1 , polyethylene terephthalate (PET) claim 1 , polyphenylene sulfide claim 1 , polybutylene terephthalate (PBT) claim 1 , polyarylate (PAR) claim 1 , poly(DPAA) claim 1 , polyether imide (PEI) claim 1 , polyacetal claim 1 , and polyoxymethylene (POM).3. The optically transparent adhesive resin composition of claim 1 , wherein:the ester polymer has a molecular weight in a range of 3000 to 6000;the rubber polymer has a molecular weight in a range of 2000 to 6000; andthe crystalline polymer has a molecular weight in a range of 4000 to 6000.4. The optically transparent adhesive resin composition of claim 1 , wherein:a content of the ester polymer is in a range of 20 wt % to 40 wt % based on a total weight of the composition;a content of the (meth)acrylic ester polymer is in a range of 10 wt % to 35 wt % based on the total weight of the composition;a content of the rubber polymer is in a range of 14 wt % to 35 wt % based on the total weight of the composition; anda content of the crystalline polymer is in a range of 4 wt % to 53 wt % based on the total weight of the composition.5. The optically transparent adhesive resin composition of claim 4 , wherein the crystalline polymer is in ...

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Номер записи: 81
20-01-2022 дата публикации

FORMALDEHYDE FREE ADHESIVE COMPOSITION

Номер: US20220017795A1
Автор: Feng Shaoguang, Hu Minbiao, Jiang Jingui, Li Yan, Pan Shi, Sun Tong, Zhai Xuemei
Принадлежит:

A formaldehyde free adhesive composition and a plywood obtained from the adhesive composition is provided, and the plywood has a balanced performance, such as high adhesion strength, sufficient pot-life, and good workability. 1. A formaldehyde free adhesive composition comprising:(a) an aqueous emulsion of acrylic polymer; and(b) an aliphatic isocyanate crosslinker(s);wherein said acrylic polymer has at least one structural unit of one or more ethylenically unsaturated monomers carrying at least one hetero functional group, and said acrylic polymer has a glass transition temperature of −45° C. to 0° C.2. The adhesive composition according to claim 1 , wherein the hetero functional group is selected from the group consisting of ureido claim 1 , nitrile claim 1 , alkoxysilane claim 1 , and phosphorous groups.3. The adhesive composition according to claim 1 , wherein the acrylic polymer has a glass transition temperature of −45° C. to 0° C.4. The adhesive composition according to claim 1 , wherein the acrylic polymer is free of structural unit of hydroxy-containing monomers.5. The adhesive composition according to claim 1 , wherein the aqueous emulsion of acrylic polymer has a pH no higher than 9.6. The adhesive composition according to claim 1 , further comprising one or more additives selected from the group of fillers claim 1 , rheology modifiers claim 1 , and defoamers.7. The adhesive composition according to claim 1 , further comprising silanes.8. The adhesive composition according to claim 1 , wherein the aliphatic isocyanate cross-linker is a hydrophilically modified HDI prepolymer.9. A method for producing a plywood claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(a) providing a formaldehyde free adhesive composition according to ;'}(b) providing two or more layers of wood;(c) applying the formaldehyde free adhesive composition onto one or two surfaces of said two or more layers of wood;(d) stacking two or more layers of wood and ...

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Номер записи: 82
12-01-2017 дата публикации

ANTIMICROBIAL PRESSURE-SENSITIVE ADHESIVE SYSTEM

Номер: US20170007464A1
Автор: Ali Mahfuza B., CONRAD-VLASAK DEENA M., Johnson Elizabeth E., Liu Junkang J., STEPANOVA NARINA Y.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

An antimicrobial pressure-sensitive adhesive (PSA). The PSA system can include an antimicrobial polymer having a plurality of pendant groups. The plurality of pendant groups can include (i) a first pendant group comprising a nonpolar compound, (ii) a second pendant group comprising a quaternary ammonium compound, and (iii) a third pendant group different from the first pendant group or the second pendent group, wherein the third pendant group provides inter-reactivity, such that the antimicrobial polymer can include one or more intermolecular interactions. The antimicrobial polymer can be free of non-ionic hydrophilic moieties. The PSA system can have a glass transition temperature Tranging from 0 to 50 degrees C. 1. A pressure-sensitive adhesive (PSA) system comprising: a first pendant group comprising a nonpolar compound,', 'a second pendant group comprising a quaternary ammonium compound, and', 'a third pendant group different from the first pendant group or the second pendent group, wherein the third pendant group provides inter-reactivity, such that the antimicrobial polymer can include one or more intermolecular interactions, and wherein the antimicrobial polymer is free of non-ionic hydrophilic moieties; and, 'an antimicrobial polymer having a plurality of pendant groups comprising'}{'sub': 'g', 'wherein the PSA system has a glass transition temperature Tranging from 0 to 50 degrees C.'}2. The PSA system of claim 1 , wherein the PSA system has a glass transition temperature ranging from 10 to 40 degrees C.3. The PSA system of claim 1 , further comprising at least one of a tackifier and a plasticizer.4. The PSA system of claim 1 , further comprising an antimicrobial agent dispersed within the PSA system.5. The PSA system of claim 4 , wherein the antimicrobial agent includes at least one of chlorhexidine gluconate claim 4 , chlorhexidine digluconate claim 4 , polyhexymethyl biguanide claim 4 , a quaternary ammonium compound claim 4 , silver claim 4 , and a ...

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Номер записи: 83
14-01-2021 дата публикации

POLYMER MIXTURE WITH RESISTANCE AGAINST THE INFLUENCE OF ETHANOL

Номер: US20210007995A1
Автор: del Rosario Ferrand Jessica, Endres Thomas, Eurich Thomas, Hermes Florian, Jung Herbert, Meier Christian, Schattka Jan Hendrik
Принадлежит:

A polymer mixture includes 10 to 90 wt. % of polymer 1 and 10 to 90 wt. % of polymer 2, the total being 100 wt. %. Polymer 1 is polymerized from (a1) 70-95 wt. % of C-Calkylester of (meth)acrylic acid, and (b1) 5-30% wt. % of C-Calkyl ester of (meth)acrylic acid with a quaternary cationic group in the alkyl group. Polymer 2 is polymerized from (a2) 70-95 wt. % of C-Calkylester of (meth)acrylic acid, and (c2) 5-30 wt. % of C-Chydroxy-alkylester of (meth)acrylic acid. Monomers (a1) and (b1) add up to 98-100 wt. %, and most preferred to 100 wt. %. Monomers (a2) and (c2) add up to 98-100 wt. %, most preferred to 100 wt %. 1: A polymer mixture , comprising:10 to 90% by weight of a polymer 1, and10 to 90% by weight a polymer 2,wherein the weight percentages of polymer 1 and polymer 2 add up to 100%, [{'sub': 1', '12, '(a1) 70 to 95% by weight of a C-Calkylester of acrylic acid or of methacrylic acid, and'}, {'sub': 2', '8, '(b1) 5 to 30% by weight of a C-Calkyl ester of acrylic acid or of methacrylic acid with a quaternary cationic group in the alkyl group,'}], 'wherein polymer 1 is a polymer, polymerized from a monomer mixture comprising monomers'} [{'sub': 1', '12, '(a2) 70 to 95% by weight of a C-Calkylester of acrylic acid or of methacrylic acid, and'}, {'sub': 2', '6, '(c2) 5 to 30% by weight of a C-Chydroxy-alkylester of acrylic acid or methacrylic acid,'}], 'wherein polymer 2 is polymerized from a monomer mixture comprising monomers'}wherein in polymer 1, the monomers (a1) and (hl) add up to from 98 to 100% by weight, andwherein in polymer 2, independent from polymer 1, the monomers (a2) and (c2) add up to from 98 to 100% by weight.2: The polymer mixture as claimed in claim 1 , wherein the C-Calkyl ester of acrylic acid or of methacrylic acid (a1) or (a2) is 2-ethylhexyl methacrylate claim 1 , ethyl or methacrylate claim 1 , or a mixture thereof.3: The polymer mixture as claimed in claim 2 , wherein 2-ethylhexyl methacrylate and ethyl methacrylate are comprised in ...

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Номер записи: 84
12-01-2017 дата публикации

WATERBORNE POLYMERS FOR HEAT SEAL ADHESIVE

Номер: US20170009111A1
Автор: Bauer Leander H., Fish William, Horvath Stephan A., Hsu Shui-Jen Raymond, Stanislawczyk Vic
Принадлежит:

This invention relates to a heat sealable adhesive composition for packaging for moderate to high moisture food products. The adhesive comprises latex in water with a minimum film formation temperature near or below 25° C. and an ethylene-vinyl acetate copolymer dispersion in water, blocking resistance up to 50° C., heat seal-ability under reasonable conditions of contact time, temperature and pressure, good adhesive properties, and approval for food contact. 1. A waterborne polymer comprising a least one acrylic emulsion copolymer(s) A and dispersion of ethylene-vinyl acetate copolymer B , wherein said copolymer(s) A comprises an acrylic emulsion copolymer(s) having a minimum film formation temperature below 25° C. , said acrylic emulsion copolymer(s) comprising:{'sub': 1', '3, '(a1) about 10-50 wt. % of repeating units from styrene and/or C-C-alkyl substituted styrene,'}{'sub': 1', '12, '(a2) about 50-90 wt. % of repeating units from C-Cesters of (meth or eth) acrylic monomers,'}(a3) about 0.0-5 wt. % of repeating units from acid functional monomers repeating units (preferably acrylic, methacrylic acids),(a4) about 0-10% of acrylonitrile and/or methacrylonitrile repeating units, and(a5) about 0-20 wt. % of repeating units from other co-polymerizable monomers (other than al-a4) based on the weight of polymer A, andwherein said dispersion of ethylene-vinyl acetate copolymer B comprises a dispersion of ethylene-vinyl acetate copolymer in a liquid media with a minimum film formation temperature of at least 60° C., said copolymer B comprising:(b1) about 50-95 wt. % ethylene repeating units,(b2) about 5-50 wt. % vinyl acetate repeating units, and(b3) about 0-5 wt. % repeating units from other co-monomers based on the weight of polymer B andsaid copolymer(s) A and copolymer B being present in weight ratios of 95:5 to 40:60.2. A waterborne polymer according to claim 1 , wherein said acrylic emulsion copolymer further comprises 0.2-3 wt. % of N-methylol (meth)acrylamide ...

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Номер записи: 85
12-01-2017 дата публикации

AQUEOUS ADHESIVE COMPOSITION

Номер: US20170009112A1
Автор: Xue Yin, Yang Miao
Принадлежит:

Provided is an method for bonding substrates together using an aqueous adhesive composition comprising a polymer that comprises (a) polymerized units of one or more alkyl (meth)acrylate monomer, (b) polymerized units of acrylic acid or methacrylic acid or a mixture thereof, (c) polymerized units of one or more dialkyl diester of itaconic acid, and (d)polymerized units of one or more other monomer. 1. A method of bonding substrates together comprising(A) applying a layer of an aqueous adhesive composition to a first substrate,(B) drying said layer of said aqueous adhesive composition to produce a dried adhesive layer,(C) contacting said dried adhesive layer with a second substrate;wherein said adhesive composition comprises a polymer comprising(a) polymerized units of one or more alkyl (meth)acrylate monomer,(b) polymerized units of acrylic acid or methacrylic acid or a mixture thereof,(c) polymerized units of one or more dialkyl diester of itaconic acid, and(d) optionally, polymerized units of one or more other monomer.2. The method of claim 1 , wherein said polymer contains polymerized units of said monomer (c) in an amount of 0.1% to 15% by weight based on the dry weight of said polymer.4. The composition of claim 1 , wherein said polymer has weight-average molecular weight of 70 claim 1 ,000 to 300 claim 1 ,000.5. The composition of claim 1 , wherein said polymer has glass transition temperature of −30° C. or lower. Adhesive compositions are useful for a wide variety of purposes. One useful class of adhesive compositions is pressure sensitive adhesives (PSAs). It would be desirable if a PSA had both a high value of tack and also had excellent shear performance However, in the past, it has generally been observed that when a PSA had high tack, it had less than desirable shear performanceUS 2013/0065070 describes an aqueous emulsion that contains a vinyl polymer obtainable from itaconate ester monomers, a process for making such aqueous emulsion, a coating obtained ...

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Номер записи: 86
14-01-2016 дата публикации

Method for preparing (meth)acrylates of biobased alcohols and polymers thereof

Номер: US20160009628A1
Автор: Aaron E. Hutt, Jason D. Clapper, Joshua L. Colby, Tabitha A. CLEM, Terence D. Spawn
Принадлежит: 3M Innovative Properties Co

Polymers, particularly those used in pressure-sensitive adhesives, are prepared from a mixture of structural isomers of a secondary alkyl (meth)acrylate monomer. The mixture is made by dehydrating a biobased C 2 -C 22 alcohol with a first acid catalyst using a continuous process to form a mixture of olefins, and reacting (meth)acrylic acid with at least some of the mixture of olefins in the presence of a second acid catalyst. The adhesives are characterized by exhibiting an overall balance of adhesive and cohesive characteristics, and containing biobased material.

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Номер записи: 87
08-01-2015 дата публикации

PRESSURE SENSITIVE ADHESIVE COMPOSITION FOR PROTECTIVE FILM HAVING ANTI-STATIC PROPERTY AND MANUFACTURING PROCESS THEREOF

Номер: US20150010753A1
Автор: HA Jae Woung, Han Jung Sup, KIM Young-Min, Lee Kumhyoung, SONG Kong Ju
Принадлежит: LG CHEM, LTD. .

Provided is an adhesive composition for a protective film including an acrylic emulsion resin capable of providing contamination resistance on the film and low peel strength and minimizing generation of static electricity during peeling of the protective film. The acrylic emulsion resin includes a mixture including 80 to 99.9% by weight of a polymer of a (meth)acrylic acid ester monomer including a C-Calkyl group and a (meth)acrylic acid ester monomer including an alkylene oxide unit, and 0.1 to 20% by weight of a monomer including a carboxyl group and/or a hydroxyl group or a combination thereof, and 5 to 30 parts by weight of a reactive emulsifier having a double bond structure radical-polymerizable with the polymer and including an alkylene oxide unit based on 100 parts by weight of the mixture. 1. An adhesive composition for a protective film comprising acrylic emulsion resin particles and 0.5 to 5 parts by weight of an external cross-linking agent based on 100 parts by weight of the acrylic emulsion resin particles ,wherein the acrylic emulsion resin particles comprise:{'sub': 1', '14, 'a mixture comprising 80 to 99.9% by weight of a polymer of a (meth)acrylic acid ester monomer comprising a C-Calkyl group and a (meth)acrylic acid ester monomer comprising an alkylene oxide unit, and 0.1 to 20% by weight of a monomer comprising a carboxyl group and/or a hydroxyl group or a combination thereof; and'}5 to 30 parts by weight of a reactive emulsifier having a double bond structure radical-polymerizable with the polymer and comprising an alkylene oxide unit based on 100 parts by weight of the mixture.2. The adhesive composition according to claim 1 , wherein the (meth)acrylic acid ester monomer comprising a C-Calkyl group comprises at least one compound 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) ...

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Номер записи: 88
14-01-2016 дата публикации

ADHESIVE FILM FOR DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF

Номер: US20160009956A1
Автор: HWANG Hyeon Deuk
Принадлежит:

An adhesive film for a display device may include an upper release film, a lower release film facing the upper release film, and a photocurable adhesive interposed between the upper and lower release films. The photocurable adhesive may include a first area having a predetermined shape and a second area having a different storage modulus from the first area. 1. An adhesive film for a display device , comprising:an upper release film;a lower release film facing the upper release film; anda photocurable adhesive interposed between the upper and lower release films,wherein the photocurable adhesive comprises a first area having a predetermined shape and a second area having a different storage modulus from the first area.2. The adhesive film for a display device of claim 1 , wherein the upper and lower release films are a plastic film made of one of polyimide claim 1 , polyethylene terephthalate (PET) claim 1 , polyethylene naphthalate (PEN) claim 1 , polyethersulfone (PES) claim 1 , nylon claim 1 , polytetrafluoroethylene (PTFE) claim 1 , polyetheretherketone (PEEK) claim 1 , polycarbonate claim 1 , and polyarylate.3. The adhesive film for a display device of claim 1 , wherein the photocurable adhesive comprises an acrylic polymer and a photocurable compound.4. The adhesive film for a display device of claim 3 , wherein the acrylic polymer is an alkyl acrylate monomer selected from the group consisting of methyl acrylate claim 3 , ethyl acrylate claim 3 , propyl acrylate claim 3 , butyl acrylate claim 3 , pentyl acrylate claim 3 , hexyl acrylate claim 3 , octyl acrylate claim 3 , lauryl acrylate claim 3 , and tetradecyl acrylate.5. The adhesive film for a display device of claim 3 , wherein the acrylic polymer may further comprise an acrylic-acid based compound.6. The adhesive film for a display device of claim 3 , wherein the photocurable compound may further comprise a photocurable monomer and a photocurable oligomer.7. The adhesive film for a display device of ...

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Номер записи: 89
14-01-2016 дата публикации

MULTILAYER PRESSURE SENSITIVE ADHESIVE

Номер: US20160009957A1
Автор: Griffith, JR. William B., Lane Melissa
Принадлежит: Rohm and Haas Company

Provided is a pressure sensitive adhesive article comprising 1. A pressure sensitive adhesive article comprising(a) a substrate (Sa),(b) in contact with said substrate (Sa), a layer (Lb) of a composition (Cb) that comprises one or more acrylic polymer (POLb) having Tg of −10° C. or lower, and(c) in contact with said layer (Lb), a layer (Lc) of a composition (Cc) that comprises one or more acrylic polymer (POLc) that comprises 20% to 90% polymerized units of one or more high-aliphatic vinyl monomer, by weight based on the weight of said polymer (POLc).2. The article of claim 1 , wherein said one or more high-aliphatic vinyl monomer comprises one or more (meth)acrylate monomer.3. The article of claim 1 , wherein said acrylic polymer (POLb) comprises polymerized units of n-butyl acrylate claim 1 , iso-octyl acrylate claim 1 , or a mixture thereof.4. A bonded article made by a process of contacting a substrate (Sd) with the article of claim 1 , wherein said substrate (Sd) is in contact with said layer (Lc). Pressure sensitive adhesives (PSAs) that contain acrylic polymers have many desirable characteristics. For example, they generally have better resistance to chemical reagents and UV light than PSAs made from many other materials. It is often desired to provide a PSA that bonds well to polyolefin substrates. There is a need for PSAs that contain acrylic polymer, that show good adhesion to polyolefin substrates, and that have a relatively low amount of polymerized units of high-aliphatic vinyl monomer.Eric Bartholomew, in “Acrylic Pressure Sensitive Adhesives Exhibiting Enhanced Adhesion to Low Surface Energy Substrates” (presented at the Pressure Sensitive Tape Council conference Tech 34 in 2011) teaches PSAs that have polymerized units of low solubility parameter Tg modifying monomers.The following is a statement of the invention.A first aspect of the present invention is a pressure sensitive adhesive article comprisingA second aspect of the present invention is a ...

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Номер записи: 90
14-01-2016 дата публикации

ELECTRICALLY PEELABLE ADHESIVE COMPOSITION AND ELECTRICALLY PEELABLE ADHESIVE SHEET, AND METHOD FOR USING ELECTRICALLY PEELABLE ADHESIVE SHEET

Номер: US20160009960A1
Автор: HATANAKA Tomio, Kato Kiichiro, Kawada Satoshi, SUGINO Takashi, YAMADA Haruya
Принадлежит: LINTEC Corporation

An electrically peelable pressure sensitive adhesive composition consists of an emulsion type acrylic pressure sensitive adhesive (A) comprising an acrylic polymer (A1) obtained by emulsion polymerization in the presence of a surfactant using a monomer mixture comprising an alkyl(meth)acrylate, and a (poly)alkylene polyol (B) having a number average molecular weight of 2000 or less, wherein a content of the component (B) based on 100 parts by mass of active ingredient of the component (A) is 3.5 parts by mass or more. In the electrically peelable pressure sensitive adhesive composition, the adhesiveness before voltage application is high, but the adhesiveness can decrease effectively by voltage application for a short time. 1. An electrically peelable pressure sensitive adhesive composition comprising an emulsion type acrylic pressure sensitive adhesive (A) comprising an acrylic polymer (A1) obtained by emulsion polymerization in the presence of a surfactant of a monomer mixture comprising an alkyl(meth)acrylate , and a (poly)alkylene polyol (B) having a number average molecular weight of 2000 or less , whereina content of the component (B) is 3.5 parts by mass or more based on 100 parts by mass of active ingredient of the component (A).2. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the content of the component (B) is 3.5 to 50 parts by mass based on 100 parts by mass of active ingredient of the component (A).3. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the component (B) comprises a (poly)alkylene glycol.5. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the component (A1) is an acrylic copolymer comprising 60 to 99.9% by mass of a constituent unit (a1) derived from an alkyl(meth)acrylate claim 1 , and 0.1 to 40% by mass of a constituent unit (a2) derived from a functional group-containing unsaturated monomer.6. ...

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Номер записи: 91
14-01-2016 дата публикации

ELECTRICALLY PEELABLE ADHESIVE COMPOSITION AND ELECTRICALLY PEELABLE ADHESIVE SHEET, AND METHOD FOR USING ELECTRICALLY PEELABLE ADHESIVE SHEET

Номер: US20160009961A1
Автор: HATANAKA Tomio, Kato Kiichiro, Kawada Satoshi, SUGINO Takashi, YAMADA Haruya
Принадлежит: LINTEC Corporation

An electrically peelable pressure sensitive adhesive composition, which contains an acrylic polymer (A), a (poly)alkylene polyol (B) having a number average molecular weight of no greater than 2000, and an ammonium salt (C), has a high adhesiveness before voltage application, but the adhesiveness can decrease effectively by voltage application for a short time. 1. An electrically peelable pressure sensitive adhesive composition comprising an acrylic polymer (A) , a (poly)alkylene polyol (B) having a number average molecular weight of 2000 or less , and an ammonium salt (C).2. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the component(C) is an ammonium sulfonate.3. The electrically peelable pressure sensitive adhesive composition according to claim 2 , wherein the ammonium sulfonate is a compound represented by the following general formula (c-1):{'br': None, '[Chem. 1]'}{'br': None, 'sup': 1', '2, 'sub': n', '3', '4, 'RO\ue8a0RO\ue8a0SONH\u2003\u2003(c-1)'}{'sup': 1', '2, 'wherein Rrepresents any of an alkyl group that may have a substituent, an alkenyl group that may have a substituent, and an aryl group that may have a substituent, and a polycyclic aromatic hydrocarbon group is also included in the aryl group; Rrepresents an alkylene group having 1 to 10 carbon atoms that may have a substituent; and n represents a real number of 1 or more.'}4. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein a content of the component(C) is 3 to 250 parts by mass based on 100 parts by mass of the component(A).5. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the component(B) comprises a (poly)alkylene glycol.6. The electrically peelable pressure sensitive adhesive composition according to claim 5 , wherein the (poly)alkylene glycol is a compound represented by the following general formula (b-1):{'br': None, '[Chem. 2]'}{'br': None, ...

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Номер записи: 92
14-01-2016 дата публикации

ELECTRICALLY PEELABLE ADHESIVE COMPOSITION AND ELECTRICALLY PEELABLE PRESSURE SENSITIVE ADHESIVE SHEET, AND METHOD FOR USING ELECTRICALLY PEELABLE PRESSURE SENSITIVE ADHESIVE SHEET

Номер: US20160009962A1
Автор: Kato Kiichiro, YAMADA Haruya
Принадлежит: LINTEC Corporation

An electrically peelable pressure sensitive adhesive sheet has a pressure sensitive adhesive layer formed of an electrically peelable pressure sensitive adhesive composition comprising an acrylic copolymer (A) comprising 1 to 99 mass % of a constituent unit (a1) derived from a compound represented by the following general formula (a1), and a surfactant (B). The electrically peelable pressure sensitive adhesive sheet has high adhesion before voltage application, but the adhesion can be effectively decreased by voltage application for a short time. 2. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the acrylic copolymer (A) further comprises 0.1 to 30 mass % of a constituent unit (a2) derived from a functional group-containing monomer (a2).3. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the acrylic copolymer (A) further comprises 0.1 to 98 mass % of a constituent unit (a3) derived from an alkyl (meth)acrylate (a3) containing an alkyl group having 1 to 20 carbon atoms.4. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the compound represented by the general formula (a1) is one or more selected from the group consisting of 2-methoxyethyl (meth)acrylate claim 1 , 2-methoxyethylene glycol (meth)acrylate claim 1 , ethoxydiethylene glycol (meth)acrylate claim 1 , and methoxytriethylene glycol (meth)acrylate.5. The electrically peelable pressure sensitive adhesive composition according to claim 1 , wherein the component (B) is a compound represented by the following general formula (b1):{'br': None, 'sup': a', 'b', '−', '+, 'sub': m', '3, 'R\ue8a0RO\ue8a0SOX\u2003\u2003(b1)'}{'sup': a', 'b', '+, 'wherein Rrepresents any of unsubstituted or substituted alkyl group having 1 to 18 carbon atoms, unsubstituted or substituted cycloalkyl group having 3 to 18 ring carbon atoms, unsubstituted or substituted alkenyl group having 1 to 18 ...

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Номер записи: 93
14-01-2016 дата публикации

THERMALLY CONDUCTIVE SHEET

Номер: US20160009963A1
Автор: SUGITA Junichiro
Принадлежит:

A thermally conductive sheet in which an adhesive thermally conductive layer and a non-adhesive resin layer are stacked. The adhesive thermally conductive layer includes an acrylic resin formed by curing an acrylic compound and a thermally conductive filler, a glass transition temperature of the acrylic resin is from −80 to 15° C., a tack property of the adhesive thermally conductive layer is higher than a tack property of the non-adhesive resin layer, the tack property of the non-adhesive resin layer is from 6 to 30 kN/m2. The non-adhesive resin layer has a glass transition temperature from 60 to 110° C. The tack property is measured by pressing probe on a layer and peeling the probe under conditions of pressing speed of 30 mm/min, peeling speed of 120 mm/min, load of 196 g, pressing time of 5.0 sec, pulling distance of 5 mm, probe heating of 40° C. and sheet stage heating of 40° C. 1. A thermally conductive sheet in which an adhesive thermally conductive layer and a non-adhesive resin layer are stacked ,wherein the adhesive thermally conductive layer comprises an acrylic resin formed by curing an acrylic compound and a thermally conductive filler, a glass transition temperature of the acrylic resin is from -80 to 15° C., a tack property of the adhesive thermally conductive layer is higher than a tack property of the non-adhesive resin layer, the tack property of the non-adhesive resin layer is from 6 to 30 kN/m2,the non-adhesive resin layer has a glass transition temperature from 60 to 110° C., andthe tack property is measured as a probe tack by pressing an aluminum cylindrical probe on the adhesive thermally conductive layer or the non-adhesive resin layer and peeling the aluminum cylindrical probe from the adhesive thermally conductive layer or the non-adhesive resin layer under conditions of pressing speed of 30 mm/min, peeling speed of 120 mm/min, load of 196 g, pressing time of 5.0 sec, pulling distance of 5 mm, probe heating of 40° C. and sheet stage heating ...

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Номер записи: 94
11-01-2018 дата публикации

ACRYLIC ADHESIVE SHEET, MEDICAL ADHESIVE TAPE, AND METHOD FOR MANUFACTURING THE SAME

Номер: US20180010019A1
Автор: CHOI Tae-Yi, Han Jeong-In, Kim Dan-A, Kim Jang-Soon, YANG Ji-Yeon, Yue Seong-Hoon
Принадлежит: LG CHEM, LTD.

Provided are: an acrylic adhesive sheet having a porous structure including a plurality of pores and having a water vapor transmission rate of 2,000 g/m·24 h to 3,500 g/m·24 h at 24° C. and 25% RH, and a porosity of 10% to 60%; and a medical adhesive tape including the same. 1. An acrylic adhesive sheet having a porous structure comprising a plurality of pores and having a water vapor transmission rate of 2 ,000 g/m·24 h to 3 ,500 g/m·24 h at 24° C. and 25% RH , and a porosity of 10% to 60%.2. The acrylic adhesive sheet of claim 1 , wherein the pores have an average size of 500 nm to 100 μm.3. The acrylic adhesive sheet of claim 1 , wherein the acrylic adhesive sheet has a thickness of 10 μm to 100 μm.4. The acrylic adhesive sheet of claim 1 , wherein the acrylic adhesive sheet is formed to have the porous structure by carrying out foaming and thermal curing on an aqueous acrylic adhesive composition.5. The acrylic adhesive sheet of claim 4 , wherein the aqueous acrylic adhesive composition comprises at least one selected from the group consisting of an acrylic resin claim 4 , a surfactant claim 4 , a thermal foaming agent claim 4 , water claim 4 , other additives claim 4 , and a combination thereof.6. The acrylic adhesive sheet of claim 5 , wherein the aqueous acrylic adhesive composition further comprises or does not further comprise a separate cross-liking agent.7. The acrylic adhesive sheet of claim 4 , wherein the aqueous acrylic adhesive composition comprises the acrylic resin in an amount of 40 wt % to 70 wt %.8. The acrylic adhesive sheet of claim 4 , wherein the aqueous acrylic adhesive composition comprises a surfactant in an amount of 1 wt % to 10 wt %.9. The acrylic adhesive sheet of claim 8 , wherein the surfactant comprises at least one selected from the group consisting of a cationic surfactant claim 8 , an anionic surfactant claim 8 , an amphoteric surfactant claim 8 , a non-ionic surfactant claim 8 , and a combination thereof.10. The acrylic ...

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Номер записи: 95
14-01-2021 дата публикации

ADHESIVE SHEET AND METHOD OF APPLYING ADHESIVE SHEET TO ROUGH SURFACE

Номер: US20210009863A1
Автор: ABE Hidetoshi, Imamura Kengo, Ono Katsuya, TAKEDA Yoshihiko, Yamamoto Takeo
Принадлежит:

An adhesive sheet of an embodiment of the present disclosure is an adhesive sheet including: a rigid resin film having a thickness of 80 micrometers to 500 micrometers, and a first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, wherein the first pressure sensitive adhesive layer includes elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, and the first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres. 1. An adhesive sheet comprising:a rigid resin film having a thickness of 80 micrometers to 500 micrometers, anda first pressure sensitive adhesive layer being disposed on or above a surface of the rigid resin film, whereinthe first pressure sensitive adhesive layer comprises elastic resin microspheres having a volume average particle diameter of 110 micrometers or greater and a tacky binder, andthe first pressure sensitive adhesive layer has an uneven surface due to the presence of the microspheres.2. The adhesive sheet according to claim 1 , comprising:a transparent resin film having a graphic image printed on a surface of the transparent resin film.3. The adhesive sheet according to claim 1 , wherein the microspheres are tacky.4. The adhesive sheet according to claim 1 , wherein the microspheres have a compressive elastic modulus at 20° C. of 1 kPa to 100 kPa.5. The adhesive sheet according to claim 1 , wherein the rigid resin film has a yield modulus of 10 MPa to 300 MPa.6. The adhesive sheet according to claim 1 , wherein a product of the yield modulus and the thickness of the rigid resin film is 0.9×10N/m to 5×10N/m.7. The adhesive sheet according to claim 1 , wherein the rigid resin film has a tensile strength at 2% strain of 40 N/25 mm or greater.8. The adhesive sheet according to claim 1 , wherein the rigid resin film is a polyester film.9. The adhesive sheet according to claim 1 , wherein the ...

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Номер записи: 96
14-01-2021 дата публикации

RESIN COMPOSITION FOR BONDING SEMICONDUCTORS, ADHESIVE FILM FOR SEMICONDUCTOR USING THE SAME, DICING DIE BONDING FILM, AND METHOD FOR DICING SEMICONDUCTOR WAFER

Номер: US20210009867A1
Автор: Choi Byung Ju, JANG Jong Min, KIM Wanjung, LEE Kwang Joo
Принадлежит: LG CHEM, LTD.

The present invention relates to a resin composition for bonding semiconductors including two types of curing catalyst mixtures together with a heat dissipation filler in which a specific functional group is introduced onto the surface, an adhesive film for semiconductor produced therefrom, a dicing die bonding film and a method for dicing a semiconductor wafer. 2. The resin composition for bonding semiconductors according to claim 1 ,wherein a weight ratio of the imidazole-based compound and the organic acid compound is 0.5:1 to 10:1.3. The resin composition for bonding semiconductors according to claim 1 ,wherein the organic acid compound includes an aromatic polyacid compound.4. The resin composition for bonding semiconductors according to claim 1 ,wherein the imidazole-based compound includes an imidazole derivative compound containing an electron withdrawing functional group.6. The resin composition for bonding semiconductors according to claim 1 ,comprising the curing catalyst in an amount of 0.5% by weight to 2.0% by weight based on the total weight of the resin composition for bonding semiconductors.7. The resin composition for bonding semiconductors according to claim 1 ,wherein the (meth)acrylate-based resin has a hydroxyl equivalent weight of 0.15 eq/kg or less.8. The resin composition for bonding semiconductors according to claim 1 ,wherein a weight ratio of the (meth)acrylate-based resin relative to the total weight of the binder resin and the curing agent is 0.55 to 0.95.9. The resin composition for bonding semiconductors according to claim 1 ,wherein the (meth)acrylate-based resin includes a (meth)acrylate-based repeating unit containing an epoxy-based functional group and a (meth)acrylate-based repeating unit (BzMA) containing an aromatic functional group, andthe (meth)acrylate-based functional group containing an aromatic functional group is in an amount of 2% by weight to 40% by weight based on the total weight of the (meth)acrylate-based resin.10. ...

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Номер записи: 97
10-01-2019 дата публикации

TRANSFER TAPE WITH SECURITY FEATURES FOR THE SIDE EDGE OF AN ADHESIVE TAPE

Номер: US20190010364A1
Автор: HÄHNEL Marcel, Koops Arne
Принадлежит:

The invention relates to a method for attaching security features () to an adhesive tape (), by introducing the security features () into a transfer layer () and applying the transfer layer () to a carrier film () to form a transfer tape () and pressing an outer side of the transfer layer () onto an end face () of a roll () of the adhesive tape () and adhering the transfer layer () on the roll end face () and peeling the carrier film () from the transfer layer (), with the transfer layer () parting from the carrier film () and, with it, the security features () remaining on a side edge () of the adhesive tape (). 1. A method for attaching security features to an adhesive tape , comprising:introducing the security features into a transfer layer, andapplying the transfer layer to a carrier film to form a transfer tape, andpressing an outer side of the transfer layer onto an end face of a roll of the adhesive tape, andadhering the transfer layer on the roll end face, andpeeling the carrier film from the transfer layer, with the transfer layer parting from the carrier film and, with it, the security features remaining on a side edge of the adhesive tape.2. Method according to claim 1 ,wherein the carrier film is selected from a material selected from the group consisting of PET, PVC, PC, PP and PE.3. Method according to claim 1 ,wherein the transfer layer comprises a coating layer and the coating layer is anchored with a first adhesive force on the carrier film and the coating layer is pressed onto the roll end face and, between the coating layer and the tacky regions of the roll end face, a second adhesive force is developed which is greater than the first adhesive force.4. Method according to claim 1 ,wherein, between the coating layer and the carrier film, a primer layer is applied over the full area, and a third adhesive force between the primer layer and the coating layer is lower than the second adhesive force between the tacky regions of the roll end face and the ...

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Номер записи: 98
10-01-2019 дата публикации

PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND ARTICLE THEREOF

Номер: US20190010368A1
Автор: Chen Zhong, Jiang Xiaoming, Wang Shujun J., Zhang Yunshu
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

The present invention relates to a pressure-sensitive adhesive composition comprising an acrylate copolymer having a side carboxyl that is formed by a first monomer mixture containing a carboxyl-containing monomer, wherein, the content of the carboxyl-containing monomer is 0.1-10 wt. % based on the total weight of the first monomer mixture for forming the acrylate copolymer having the side carboxyl, the glass transition temperature Tg of the acrylate copolymer having the side carboxyl is larger than or equal to −55° C. and less than or equal to −30° C. The pressure-sensitive adhesive composition further comprises 1-25 wt. % of an acrylate oligomer with a weight-average molecular weight greater than or equal to 20,000 Da and a glass transition temperature Tg greater than or equal to 25° C., and 1-20 wt. % of a terpene tackifying resin based on the total weight of the acrylate copolymer having the side carboxyl and the acrylate oligomer. The pressure-sensitive adhesive composition also has a high peel force at room temperature and a high cohesive force at high temperature and has excellent anti-warping and anti-bubbling properties 1. A pressure-sensitive adhesive composition , comprising the reaction products of the following reaction components:acrylate copolymers having a side carboxyl, formed by a first monomer mixture containing a carboxyl-containing monomer, wherein, the content of the carboxyl-containing monomer is 0.1-10 wt. % based on the total weight of the first monomer mixture for forming the acrylate copolymer having the side carboxyl, the glass transition temperature Tg of the acrylate copolymer having the side carboxyl is greater than or equal to −50° C. and less than or equal to −30° C.;1-25 wt. % of an acrylate oligomer based on the total weight of the acrylate copolymer having the side carboxyl and the acrylate oligomer, the weight-average molecular weight of the acrylate oligomer is greater than or equal to 20,000 Da, the glass transition temperature ...

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Номер записи: 99
11-01-2018 дата публикации

OPTICAL STACK COMPRISING ADHESIVE

Номер: US20180011228A1
Автор: Carter Brandt K., Edmonds William F., Petaja Jason S.
Принадлежит:

Presently described are optical stacks comprising a first optical film comprising a plurality of structures comprising an optically active portion designed primarily to provide optical gain and optionally an optically in-active bonding portion disposed on a first surface bonded to a second optical film with a light-transmissive adhesive layer such that a portion of the structures penetrate the adhesive layer and a separation is provided between the adhesive layer and the first surface. In one embodiment, the optical stacks exhibit a combination of high peel strength and high retained brightness, particularly after aging. The adhesive layer preferably comprises an interpenetrating network of the reaction product of a polyacrylate component and a polymerizable monomer and the adhesive layer has an elastic modulus ranging from 100 to 2000 MPa at 25° C. 1. An optical stack comprising a first optical film comprising a plurality of structures comprising an optically active portion designed primarily to provide optical gain bonded to a second optical film with a light-transmissive adhesive layer such that a portion of the structures penetrate the adhesive layer and a separation is provided between the adhesive layer and the first surface , wherein the adhesive layer comprises an interpenetrating network of the reaction product of a polyacrylate component and a polymerizable monomer having functional groups and a molecular weight less than 150 g/mole per functional group , the peel strength of the optical stack is at least 50 grams force/inch and the stack exhibits a decrease in optical gain of no greater than 5% when the optical stack is conditioned at 65° C. and 95% relative humidity for 200 hours.2. An optical stack comprising a first optical film comprising a plurality of structures disposed on a first surface bonded to a second optical film with a light-transmissive adhesive layer such that a portion of the structures penetrate the adhesive layer defining an average ...

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