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Acrylic

Acrylic-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Halogen-free flame retardant pressure sensitive adhesive and tape
3m Innovative Properties Company
February 15, 2018 - N°20180044564

A halogen-free flame retardant adhesive comprises an acrylic copolymer preparable by polymerization of monomers comprising a first monomer which comprises a low glass transition temperature (tg) monomer, a second monomer which comprises a high tg monomer, wherein at least one of the first and second monomers comprises a (meth)acrylate, and a phosphinate containing monomer.
Pressure-sensitive adhesive composition for optical film, pressure-sensitive adhesive layer for optical film, pressure-sensitive adhesive optical ...
Nitto Denko Corporation
February 15, 2018 - N°20180044556

A pressure-sensitive adhesive composition for an optical film of the present invention includes a (meth)acrylic polymer(a) that comprises, as monomer units, 67 to 96. 99% by weight of alkyl (meth)acrylate(a1), 1 to 20% by weight of benzyl (meth)acrylate(a2), 2 to 10% by weight of a carboxyl group-containing monomer(a3) and 0. 01 to 3% by weight of a hydroxyl group-containing monomer(a4), has a ...
Pressure-sensitive adhesive sheet
Nitto Denko Corporation
February 15, 2018 - N°20180044554

Provided is a pressure-sensitive adhesive (psa) sheet having a low relative dielectric constant, satisfactory metal corrosion preventing property, and excellent member holding performance. The present invention provides a psa sheet having a psa layer including a base polymer and a rust inhibitor. The base polymer is an acrylic polymer, and monomeric components constituting the acrylic polymer comprise a (meth)acrylate ...
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Methacrylic resin composition
Kuraray Co., Ltd.
February 15, 2018 - N°20180044517

A methacrylic resin composition comprising 10 to 99 parts by mass of a methacrylic resin (a) comprising 80% by mass or more of a methyl methacrylate unit, and 90 to 1 part by mass of a block copolymer (b) comprising 10 to 60% by mass of a methacrylic acid ester polymer block (b1) and 90 to 40% by mass of an acrylic acid ester polymer block (b2), wherein the ...
Resin composition, adhesive agent, and sealing agent
Namics Corporation
February 15, 2018 - N°20180044478

There is provided a photocurable and thermosetting resin composition which suppresses decrease of adhesive strength in a moisture resistance test of the cured resin composition, and has a sufficiently long pot life. The resin composition includes (a) an acrylic resin, (b) a multifunctional nitrogen-containing heterocyclic compound represented by a specific chemical formula, (c) a latent curing agent, (d) a radical ...
Acrylic processing aid and vinyl chloride resin composition comprising the same
February 15, 2018 - N°20180044460

The acrylic processing aid is used for sheet forming of the vinyl chloride resin, and facilitates manufacture of a high-quality vinyl chloride resin formed article having excellent transparency, adhesion resistance and heat stability, having no non-dispersed melt (fish-eye) production, and having significantly reduced air mark and flow mark occurrences.
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Acrylic Patent Applications
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Method to make an elastomeric polyolefin skin
Dow Global Technlogies Llc
February 15, 2018 - N°20180043392

The present invention relates to method to make a spray skin from an aqueous polyolefin dispersion composition comprising a an olefin block copolymer, a dispersing agent, preferably an ethylene acrylic acid, and water, wherein said aqueous dispersion preferably has a ph less than 12 and is derived from the melt blending. The method comprises the steps of spraying the aqueous polyolefin ...
Adhesive skin patch material and roll body of adhesive skin patch material
Nitto Denko Corporation
February 15, 2018 - N°20180043144

The present invention relates to an adhesive skin patch material, which comprises a polyurethane elastomer film, a pressure-sensitive adhesive layer provided on one side of the polyurethane elastomer film, and a release liner releasably laminated so as to cover the sticky surface of the pressure-sensitive adhesive layer. The polyurethane elastomer film has a thickness of 1 μm to 9 ...
Transdermal therapeutic system comprising buprenorphrine
Hexal Ag
February 15, 2018 - N°20180042861

The invention is concerned with a transdermal therapeutic system (tts) comprising buprenorphine and a method of manufacturing such a tts. The transdermal therapeutic system is used for the transdermal administration of buprenorphine and analogues thereof. In particular, the invention relates to the use of a transdermal therapeutic system (tts) for analgesic purposes. The tts according to the invention comprises a ...
Acrylic adhesive compositions and acrylic adhesive tapes which enable clean removal from delicate surfaces
3m Innovative Properties Company
February 08, 2018 - N°20180037783

An acrylic adhesive derived from the reaction product of (i) an acrylic acid ester of monohydric alcohol having an alkyl group of 5 to 10 carbon atoms; and (ii) a nonpolar acrylic monomer having a solubility of less than 9. 2 as measured with the fedors method using a homopolymer of the nonpolar acrylic monomer. The acrylic adhesive possesses performance characteristics that enable the ...
Pressure sensitive adhesive and laminate
3m Innovative Properties Company
February 08, 2018 - N°20180037782

A pressure sensitive adhesive containing an adhesive polymer having, as a monomer unit, a monomer having (a) a (meth) acrylic acid ester represented by formula (1) shown below, (b) a (meth) acrylic acid, and (c) a monomer having a nitrogen atom and a vinyl group, and a hydrophobic silica microparticle, where component (a) contains 50 parts or more by weight of the (...
2-cyanoacrylate adhesive composition
Toagosei Co., Ltd.
February 08, 2018 - N°20180037772

Provided is an adhesive composition which exhibits excellent water resistance and warm-water resistance without impairing instantaneous adhesiveness. The 2-cyanoacrylate adhesive composition contains a 2-cyanoacrylic acid ester, and a specific phthalic anhydride derivative, in which the content of the phthalic anhydride derivative is from 0. 01 to 5% by mass, relative to the total amount of the adhesive composition. Preferably, the adhesive composition further ...
Paint composition
Rohm And Haas Company
February 08, 2018 - N°20180037753

The present invention relates to a deep base or accent coating composition comprising an acrylic based binder and a zn++ additive. The composition of the present invention resists water staining better than comparable formulations that do not contain the additive.
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Acrylic Patent Applications
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Polymeric composition absorbing, comprising and releasing an odoriferous active compound, method for preparing it and ...
February 08, 2018 - N°20180037715

The present invention concerns also objects or articles comprising a polymeric elastomeric phase in form of an acrylic block copolymer and an odoriferous active compound, methods of absorption of odoriferous active compound by said objects and articles and releasing said odoriferous active compound over a given period of time.
Pumpable and thermally expandable filler compositions
Sika Technology Ag
February 08, 2018 - N°20180037708

Pumpable thermally foaming filler compositions based on combinations of a liquid epoxy resin and a polyvinyl chloride resin and/or an acrylic resin powder. The pumpable filler materials provide the advantage that they can be applied as needed using conventional injection equipment and can be expanded to provide foam with good physical strength, high expansion and excellent adhesion on oiled ...
Layered body and optical film or liquid crystal alignment film using same
Dic Corporation
February 08, 2018 - N°20180037680

The invention provides an acrylic resin-based transparent substrate having an alignment layer spread thereon, wherein the photo-alignment layer and the substrate are kept tightly bonded to each other. The invention also provides a layered body having an acrylic resin-containing transparent substrate and, as formed on one surface of the transparent substrate by spreading and bonding thereto, a photo-alignment layer containing ...
Silica glass precursor production method, silica glass precursor, silica glass production method, and silica glass
Kyushu University, National University Corporation
February 08, 2018 - N°20180037463

Provided is a method for producing, at low cost, a dense and porous silica glass precursor from which silica glass can be easily formed in a complex shape at low cost, and which can also be utilized in an absorbent or the like utilizing porousness thereof as another use. A silica glass precursor production method includes: a stirring step of ...
Heat diffusion sheet
Dexerials Corporation
February 08, 2018 - N°20180037001

A heat diffusion sheet includes a graphite sheet having a thickness of from 20 μm to 80 μm, an acrylic adhesive layer having a thickness within a range of from 5 μm to 15 μm and not containing a thermally conductive material, a polyester film having a thickness within a range of from 5 μm ...
Electrical connection tape
Alpha Assembly Solutions Inc.
February 08, 2018 - N°20180036818

A thermal managing electrical connection tape includes a carrier film and a composition including solder powder, with the composition being applied to the carrier film. The composition includes a soldering flux having the solder powder disposed therein. The composition contains between about 50 wt % and about 70 wt % soldering flux. The composition further contains between about 30 wt % and about 50 wt % solder powder. ...
Substrate for biochips and method for producing same
Nippon Light Metal Company, Ltd.
February 08, 2018 - N°20180036705

A substrate for biochips, in which carboxyl groups are immobilized on a substrate whose surface at least is composed of carbon; and a method for producing the substrate are disclosed. The substrate for biochips comprises a substrate whose surface at least is composed of carbon; and an acrylic polymer having free carboxyl groups in the molecular structure thereof, which acrylic ...
Low-stringiness thickener and cosmetic material admixed with said thickener
Shiseido Company, Ltd.
February 08, 2018 - N°20180036221

The invention provides methods of thickening aqueous compositions without increasing stringiness. The method involves using, as thickeners, polymers of polyacrylic acid, poly(2-acryamide-2-methylpropanesulfonate), or salts thereof, having a weight average molecular weight of 500,000-8,000,000. The polymers contain no more than 10 mass % of polymers having a molecular weight of 10,000,00 or more, and/or contain no more than 10 mass % of polymers ...
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