Coating Is Adhesive Or Is Intended To Be Made Adhesive (e.g., Release Sheet Or Coating, Etc.) Patents (Class 427/516)
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Patent number: 11898067Abstract: The present invention relates to a reactive adhesive film comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from an initiator, in particular a radical initiator, or an activator, featuring enhanced heat-and-humidity resistance, and to a reactive 2-component adhesive system in film form for bonding diverse materials, such as, for example, metal, wood, glass and/or plastic material.Type: GrantFiled: November 22, 2017Date of Patent: February 13, 2024Assignee: TESA SEInventors: Uwe Schümann, Clementine Pradier
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Patent number: 11370944Abstract: An adhesive composition is described comprising a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications.Type: GrantFiled: May 11, 2020Date of Patent: June 28, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Kathleen S. Shafer, Thomas Q. Chastek, Cyrus A. Anderson
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Patent number: 11034866Abstract: An adhesive article is described comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxy-functional film-forming polymer. The adhesive may be used in structural and semi-structural bonding applications and is designed to fail cohesively.Type: GrantFiled: November 21, 2017Date of Patent: June 15, 2021Assignee: 3M Innovative Properties CompanyInventors: Cyrus A. Anderson, Kathleen S. Shafer, Thomas Q. Chastek, Jonathan E. Janoski, Michael C. Martin, Anthony F. Schultz, Carla S. Thomas, Peter O. Rekow
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Patent number: 10808146Abstract: The invention relates to a UV-cross-linked, polyacrylate-based adhesive mass that has high adhesive force and high cohesion and that can be produced by means of a hot-melt process with subsequent cross-linking. This is achieved by providing an adhesive mass that can be obtained by cross-linking a composition, which comprises at least one poly(meth)acrylate having a weight-average molar mass Mw of at least 100,000 g/mol and at least one polyfunctional ?-cleaver and is characterized in that the composition contains at least one adhesive-force-increasing resin having a weight average molar mass Mw of at most 30,000 g/mol, which resin can be obtained by polymerizing a monomer composition M1, comprising at least one compound according to formula (I) H2C?C(R1)(COOR2), wherein R1 represents a hydrogen atom or a methyl group and R2 represents a hydrogen atom or a functionalized or non-functionalized C1-C20 alkyl group.Type: GrantFiled: August 16, 2016Date of Patent: October 20, 2020Assignee: TESA SEInventors: Jennifer Beschmann, Alexander Prenzel
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Patent number: 9890305Abstract: Problem: To provide a method for producing a laminate comprising a thick, highly transparent cured adhesive sheet exhibiting flow characteristics accompanied by satisfactory fluidity and satisfactory initial adhesion to an adherend before irradiation, and satisfactory hardness (in particular, a high storage modulus) after irradiation.Type: GrantFiled: April 22, 2014Date of Patent: February 13, 2018Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Suwa, Hikaru Takeda
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Patent number: 9487679Abstract: An acrylic adhesive tape exhibiting good adhesion to a curved surface and good peel characteristics under a constant load even in the absence of a cross-linking agent includes an acrylic adhesive layer photo-polymerized by irradiation with ultraviolet rays. The acrylic adhesive layer contains: an acrylic polymer A formed by irradiating a solvent-free photo-polymerizable monomer composition containing an acrylic monomer and a photopolymerization initiator with ultraviolet rays so that the acrylic polymer A is formed by photopolymerization of the acrylic monomer and has a weight average molecular weight of 700,000 to 3,000,000 when a cross-linking agent is absent; an acrylic polymer B having a weight average molecular weight of 350,000 to 650,000; and an adhesion-imparting polymer having a weight average molecular weight of 2,000 to 10,000. The acrylic adhesive layer has a molecular weight distribution of 2.4 to 4.4.Type: GrantFiled: September 27, 2011Date of Patent: November 8, 2016Assignee: DEXERIALS CORPORATIONInventors: Takanori Ogata, Azumi Koike
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Patent number: 9475968Abstract: A process for making UV curable pressure sensitive adhesive compositions by derivatizing an acrylic polymer with a derivatizing agent prepared from a hydroxy-functional acrylate monomer and a diisocyanate. The derivatizing agent typically has a ratio of hydroxy-functional acrylate monomer to diisocyanate greater than about 1:1. Also disclosed are UV curable pressure sensitive adhesives made with the derivatizing agent and methods for adhering substrates with pressure sensitive adhesive compositions.Type: GrantFiled: April 11, 2014Date of Patent: October 25, 2016Assignee: ASHLAND LICENSING AND INTELLECTUAL PROPERTY, LLCInventors: Terry Emerson Hammond, Xiaochuan Hu
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Patent number: 9353204Abstract: Presented is a (meth)acrylate composition that can be cured even in an unirradiated portion that is not reached by light. The (meth)acrylate composition contains a compound having one or more vinyl groups in a molecular structure thereof. The compound has a ratio of a molecular weight thereof to a number of the vinyl groups of 300 or lower. The composition generates a heat of reaction during photopolymerization thereof, and the heat of reaction causes thermal polymerization of the composition.Type: GrantFiled: August 9, 2013Date of Patent: May 31, 2016Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITYInventors: Tatsuya Hase, Kazuo Nakashima, Makoto Mizoguchi
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Patent number: 9346982Abstract: The present invention relates to amphiphilic pressure sensitive adhesives, specifically, pressure sensitive adhesives with amphiphilic copolymers which improve adhesion under moist environment. The amphiphilic copolymers comprise at least one hydrophobic acrylic monomer or oligomer and at least one hydrophilic or amphiphilic monomer or oligomer. The present invention also relates to the use of such adhesives in securing medical devices to human skin.Type: GrantFiled: August 15, 2011Date of Patent: May 24, 2016Assignee: CONVATEC TECHNOLOGIES INC.Inventors: Mahesh Sambasivam, Xiang Yu, Joseph C Salamone, Ann Beal Salamone
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Patent number: 9248468Abstract: Methods and compositions concerning an ultraviolet light curable formulation useful for repairing composite materials including the repair of a hole in the exterior of an airplane. The formulation may contain an acrylic oligomer, an acrylic monomer, an organic peroxide, a dialkylaniline promoter, a photoinitiator. The formulation can include a filler such as carbon fabric or Kevlar fabric.Type: GrantFiled: January 18, 2011Date of Patent: February 2, 2016Assignee: Texas Research International, Inc.Inventor: John W. Bulluck
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Publication number: 20150079303Abstract: Disclosed are a base material composition for a foam tape which has high foam stability and excellent peel strength, a foam tape prepared using the same, and a preparation method thereof. According to the present invention, the base material composition for a foam tape comprises an acrylic monomer, a radical initiator, a cross-linking agent, a porous filler, and a surfactant, wherein the surfactant comprises 60-90 wt % of a siloxane-based polymer and 10-40 wt % of a non-siloxane-based polymer. A foam tape prepared thereby is economical compared with conventional foam tapes, is free from a deteriorating adhesive force, and has excellent foam stability.Type: ApplicationFiled: April 22, 2013Publication date: March 19, 2015Inventors: Ji-Hye Kim, Seung-Min Yoo, Jang-Soon Kim
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Publication number: 20150079389Abstract: Adhesive compound as a permeant barrier, comprising (i) block copolymers having a construction A-B-A, (A-B)n, (A-B)nX, or (A-B-A)nX, where X is the radical of the coupling reagent, n is a whole number between 2 and 10, A is a polymer made of a vinyl aromatic compound and B is a polymer block made of an alkene or diene, wherein this polymer block can also be hydrated, with the condition that at least part of the A blocks is sulfonated, optionally with two-block copolymers in the form of A-B as an admixture component, and (ii) at least one tackifier resin.Type: ApplicationFiled: March 25, 2013Publication date: March 19, 2015Inventors: Thorsten Krawinkel, Klaus Keite-Telgenbüsher, Judith Grünauer, Jan Ellinger
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Publication number: 20150041054Abstract: The present invention relates to a security element for a security paper, a valuable article or the like having a substrate (1), the substrate being at least partially furnished with a coating (2) that is substantially tack free at room temperature, and the coating (2) including at least one radiation-crosslinkable component.Type: ApplicationFiled: April 7, 2014Publication date: February 12, 2015Applicant: GIESECKE & DEVRIENT GMBHInventors: Winfried HOFFMULLER, Kerstin SANDER
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Patent number: 8927615Abstract: A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.Type: GrantFiled: May 8, 2013Date of Patent: January 6, 2015Assignees: Immunolight, LLC, Duke UniversityInventors: Frederic Avery Bourke, Jr., Tuan Vo-Dinh
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Publication number: 20140255679Abstract: A multilayer pressure sensitive adhesive (PSA) film having a first pressure sensitive adhesive layer for bonding glass substrates and at least a second opposing layer, the first pressure sensitive adhesive layer being a polymerization reaction product of a precursor comprising a monomer or a partially prepolymerized monomer, in particular a (meth)acrylate based monomer, having a curable ethylenically unsaturated group, whereas the precursor further comprises an oligomeric organofunctional silane having at least 2 Si atoms, in particular 2 to 10 Si atoms, wherein the monomer having a curable ethylenically unsaturated further has a coupling group with a Zerewitinow-active H-atom and wherein the oligomeric organofunctional silane has at least one coupling group which is reactive to the coupling group of the monomer having a curable ethylenically unsaturated group, or wherein the oligomeric organofunctional silane has at least one coupling group with a Zerewitinow-active H-atom and wherein the monomer having a cuType: ApplicationFiled: October 5, 2012Publication date: September 11, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Siegfried R. Goeb, Silke D. Mechernich, Steffen Traser, Claudia Torre, Jan D. Forster
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Patent number: 8828500Abstract: A photocurable resin composition for sealing an organic EL device is provided, which can seal the organic EL device without exerting any bad influence on the device, thereby suppress the formation and growth of dark spots positively, and which can ensure a high transmittance of light, thereby maintain a stable light emitting characteristic over a long period of time. The composition comprises (A) an epoxy resin containing at least two glycidyl groups in each molecule thereof and having a molecular weight of 200 to 7000, (B) an epoxy resin containing at least one glycidyl group in each molecule thereof and having a molecular weight of 20000 to 100000, (C) a latent acid photo catalyst adapted to be activated and produce an acid upon being irradiated with energy beam, and (D) a silane coupling agent containing a glycidyl group in each molecule thereof, the composition exhibiting non-fluidity at 25° C., but exhibiting fluidity in a temperature range of 50° to 100° C.Type: GrantFiled: November 6, 2009Date of Patent: September 9, 2014Assignee: Three Bond Co., Ltd.Inventors: Yoshihide Arai, Hiromasa Kitazawa, Kenichi Horie
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Publication number: 20140220255Abstract: Provided is a method for producing a pressure-sensitive adhesive sheet having an ultraviolet-ray curing-type acrylic pressure-sensitive adhesive layer that has a high conversion per unit amount of light, is excellent in productivity, and is also excellent in balance between pressure-sensitive adhesive performances. The method includes: a pressure-sensitive adhesive layer forming step in which the composition is irradiated with and cured by ultraviolet rays to form a pressure-sensitive adhesive layer; wherein an ultraviolet lamp that radiates the ultraviolet rays in the pressure-sensitive adhesive layer forming step is an LED lamp; the ultraviolet rays are radiated intermittently; and the time of bright periods when the ultraviolet rays are radiated is from 1 second to 30 seconds, and the time of dark periods when the rays are not radiated is from 0.1 timed to 20 times the time of the bright periods.Type: ApplicationFiled: January 31, 2014Publication date: August 7, 2014Inventors: Jun AKIYAMA, Tooru NAKASHIMA
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Patent number: 8785515Abstract: Polycyclic aromatic compounds of formula (I) having at least two conjugated aromatic rings at least one of which has a substituent comprising a cyclic carbonate group can be used as sensitizers for cationic photoinitiators, especially iodonium compounds, and may also function as monomers in cationically initiated radiation curable compositions, especially coating compositions, such as printing inks and varnishes.Type: GrantFiled: May 9, 2008Date of Patent: July 22, 2014Assignee: Sun Chemical CorporationInventors: Shaun Lawrence Herlihy, Robert Stephen Davidson
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Publication number: 20140193598Abstract: A multilayer pressure sensitive adhesive (PSA) film having a first acrylic pressure sensitive adhesive layer and an opposing second acrylic pressure sensitive adhesive layer, wherein the first pressure sensitive adhesive layer has a glass transition temperature Tg?0° C. and a content of a strongly polar acrylate of 7.5 to 15 wt.-% in its precursor, and the second pressure sensitive adhesive layer has a Tg?0° C. and contains 0.5 to 12 wt.-% of a strongly polar acrylate in its precursor, wherein the content of the strongly polar acrylate of the precursor of the first pressure sensitive adhesive layer exceeds the content of the strongly polar acrylate of the precursor of the second pressure sensitive adhesive layer by at least 2 wt.-% and wherein the Tg of the first pressure sensitive adhesive layer exceeds the Tg of the second pressure sensitive adhesive layer by at least 5° C.Type: ApplicationFiled: August 8, 2012Publication date: July 10, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steffen Traser, Jan D. Forster, Bernd Kuehneweg, Tobias Pick
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Publication number: 20140193599Abstract: A kind of light-heat dual curing anisotropic conductive adhesive includes light curing activated monomer 15.0-18.0%, light-cured resin 4.5-12.5%, thermosetting resin 20.0-25.0%, elastomer 5.0-10.0%, insulating nanoparticles 8.0-15.0%, conductive particles 4.0-18.0%, light curing agent 3.0-5.0% and latent heat curing agent 12.0-16.0%, wherein the components are counted according to weight percentage. The present invention also discloses a kind of light-heat dual curing anisotropic conductive film (ACF) and its preparation methods. Ultraviolet light curing method is applied to produce ACF can avoid using solvent to protect the natural environment. When using ACF, heat curing method is then applied to guarantee the quality of banding and the reliability.Type: ApplicationFiled: April 24, 2013Publication date: July 10, 2014Inventors: Ren-Liang Xiao, Chang-Hou Zhao, Cheng-Cui Liu, Xian-Fei Wan, Chang-Wu Yang, Hua-Guo Yin
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Publication number: 20140186541Abstract: The present invention relates to a process for the preparation of a radiation curable composition comprising at least one (meth)acrylic copolymer A and at least one radiation curable compound B, said process comprising a first copolymerization step, and a subsequent ring opening step.Type: ApplicationFiled: July 6, 2012Publication date: July 3, 2014Inventors: Graham Clark, Jurgen Van Holen
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Publication number: 20140154478Abstract: According to one embodiment, a self-adhesive insulation product is provided. The self-adhesive insulation product includes an elongated fibrous insulation blanket having a length, a width, a thickness, and a first major surface and a second major surface which each extend for the length and width of the fibrous insulation blanket. The self-adhesive insulation product also includes a coating of an adhesive applied to the first major surface of the fibrous insulation blanket. The adhesive includes an emulsion of a polymer material and water with the water evaporated so that the adhesive forms a dry layer atop the first major surface. The adhesive is nonbondable or nonadherable to other objects when in the dry state and is bondable or adherable to other objects upon the subsequent application of water.Type: ApplicationFiled: December 3, 2012Publication date: June 5, 2014Applicant: JOHNS MANVILLEInventor: Thomas John Fellinger
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Publication number: 20140154500Abstract: In a double-sided adhesive tape in which acrylic-based adhesive layers are formed on respective sides of an electron beam cross-linked polyethylene foam substrate, the acrylic-based adhesive layers are formed from a cured resin composition formed by irradiating a solvent-free photopolymerizable monomer composition containing an acrylic-based monomer and a photopolymerization initiator with ultraviolet rays to photo-polymerize the acrylic-based monomer. The cured resin composition contains an adhesion-imparting polymer having a weight average molecular weight of 2,000 to 10,000, an acrylic-based polymer A obtained by photopolymerization in the absence of a cross-linking agent and having a weight average molecular weight of 700,000 to 3,000,000, and an acrylic-based polymer B obtained by photopolymerization in the absence of a cross-linking agent and having a weight average molecular weight of 350,000 to 650,000.Type: ApplicationFiled: May 10, 2012Publication date: June 5, 2014Applicant: DEXERIALS CORPORATIONInventors: Noboru Araki, Tomoyuki Abe, Takanori Ogata
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Publication number: 20140147599Abstract: The present invention relates to a method in which: a photoreactive composition layer is formed on a support while conveying the support in one direction, the support is turned around at least once so that the support before turnaround faces the support after turnaround by conveying the support in the direction opposite the foregoing one direction to make a conveying route of the support multistage traveling, and in the course of multistage traveling, the support is turned around while keeping contact with three or more conveying rollers at least during the first turnaround, and light is emitted toward the support from a light irradiator to cause photopolymerization of the photoreactive composition layer formed on the support.Type: ApplicationFiled: November 27, 2013Publication date: May 29, 2014Applicant: NITTO DENKO CORPORATIONInventors: Jun AKIYAMA, Tooru NAKASHIMA
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Publication number: 20140120345Abstract: A backing sheet for a flexographic printing plate and a method for manufacturing the backing sheet are provided. The method includes the steps below. A flexible base plate is provided, and an adhesive is coated thereon. The adhesive includes a resin, a photo initiator and a photocurable compound. A first exposure is then performed so as to convert the adhesive to an adhesive layer, in which the conversion rate of the unsaturated groups of the adhesive layer is in a range of 10 to 65%. The backing sheet manufactured by the above-mentioned method is also provided.Type: ApplicationFiled: May 1, 2013Publication date: May 1, 2014Applicant: Far Eastern New Century CorporationInventors: Shu-Chuan Liu, Chung-Kai Chang
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Patent number: 8697240Abstract: A photocurable resin composition including: (A) a urethane (meth)acrylate oligomer having a polyoxyalkylene structure, (B) a (meth)acrylic polymer, (C) a (meth)acrylic monomer, and (D) a photopolymerization initiator, wherein the component (A) is produced using monomer components including (a1) a polyoxyalkylene polyol, (a2) a polyisocyanate, and (a3) a hydroxyl group-containing mono(meth)acrylate compound, a relationship N (=n1/n2) between the total mass n1 of the monomer components and the total equivalent weight n2 of acryloyl groups within the all monomer components is 4,000 or greater, and the component (A) is substantially free of unreacted isocyanate groups.Type: GrantFiled: July 15, 2010Date of Patent: April 15, 2014Assignee: Hitachi Chemical Company, Ltd.Inventors: Yoshinobu Ogawa, Futoshi Oikawa, Hiromasa Kawai
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Publication number: 20140087166Abstract: The invention relates to a process to manufacture an adhesive layer in an easy to handle process, whereby the adhesive is applied in a molten state to a substrate in an amount to form a layer of 150 to 5000 ?m and the adhesive is cured by UV-radiation whereby the adhesive comprises a polyurethane bearing at least one unsaturated curable group in the chain and the radiation source is preferably an UV-LED.Type: ApplicationFiled: November 25, 2013Publication date: March 27, 2014Inventor: Riju Davis
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Patent number: 8628847Abstract: An adhesive binder, an adhesive composition including the same, an optical member, and associated methods, the adhesive binder including a (meth)acrylic copolymer having urethane, hydroxyl, aromatic, and vinyl groups in side chains thereof.Type: GrantFiled: December 28, 2010Date of Patent: January 14, 2014Assignee: Cheil Industries, Inc.Inventors: Kyoung Jin Ha, Kil Sung Lee, Mi Sun Kim, Irina Nam, Chang Min Lee
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Patent number: 8617637Abstract: A thermal spraying method includes forming a coating layer of heat resistant resin on the whole spray area of the metal surface, securely fixing a test piece of the same material as that of the metal as a constituent of heat resistant equipment on the surface of the coating layer, spraying a heat shield coating material onto the test piece, detaching the test piece from the surface of the coating layer, inspecting the condition of spray and setting spray conditions, removing the coating layer and, under the above set spray conditions, spraying the heat shield coating material onto the metal surface to thereby form a heat shield coating layer.Type: GrantFiled: June 25, 2008Date of Patent: December 31, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Hitoshi Morimoto, Yoriaki Inoue
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Publication number: 20130330549Abstract: Compositions useful for preparing pressure sensitive adhesives, coatings, and/or films are provided, along with methods of making and using the same. The compositions are made from renewable, plant-based materials. The compositions comprise plant oil triglycerides that are polymerized and crosslinked to yield polymer matrices. Plant-based carriers and/or tackifiers can be used in the invention, including epoxidized plant oil triglycerides, acrylated epoxidized plant oil triglycerides, and dihydroxylated plant oil triglycerides. Natural tackifiers such as rosin esters and terpenes can also be used in the compositions. Dihydroxylated plant oil triglyceride tackifiers for use in biobased and synthetic adhesives are also provided.Type: ApplicationFiled: January 20, 2012Publication date: December 12, 2013Applicant: KANSAS STATE UNIVERSITY RESEARCH FOUNDATIONInventors: Xiuzhi Susan Sun, Byungjun Kollbe Ahn, Donghai Wang
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Patent number: 8597786Abstract: The present invention relates to a pressure-sensitive adhesive composition including, as a main ingredient, a monomer mixture or an acrylic copolymer material obtained by at least partially polymerizing the monomer mixture, the monomer mixture including: at least one monomer (monomer m1) selected from alkyl (meth)acrylates represented by the following formula (I) CH2?C(R1)COOR2 in which R1 is a hydrogen atom or a methyl group, and R2 is an alkyl group having 1 to 20 carbon atoms: at least one monomer (monomer m2) selected from N-hydroxyalkyl(meth)acrylamides represented by the following formula (II) CH2?C(R1)CONHR4 in which R3 is a hydrogen atom or a methyl group, and R4 is a hydroxyalkyl group having 2 to 4 carbon atoms: and at least one monomer (monomer m3) selected from N-vinyl cyclic amides and (meth)acrylamides that may have an N-alkyl group; and the monomer mixture including substantially no carboxyl group-containing monomer.Type: GrantFiled: May 21, 2009Date of Patent: December 3, 2013Assignee: Nitto Denko CorporationInventors: Masahito Niwa, Masayuki Okamoto, Naoaki Higuchi
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Patent number: 8598250Abstract: The present invention relates to a photocurable acrylic viscoelastic material composition including: an acrylic monomer mixture containing an alkyl (meth)acrylate as a main monomer component and a polar group-containing vinyl monomer, or a partial polymerization product thereof; a (meth)acrylate compound having at least one isocyanate group within the molecule thereof; and a photopolymerization initiator. The photocurable acrylic viscoelastic material composition of the present invention has, by virtue of the above-described construction, excellent pot life and excellent storage stability, despite containing an isocyanate compound having at least one isocyanate group within the molecule thereof, and further can form an acrylic viscoelastic material excellent in the holding power at high temperatures through photocuring. Also, the acrylic viscoelastic material and acrylic viscoelastic material layer tape or sheet of the present invention is excellent in the holding power at high temperatures.Type: GrantFiled: January 22, 2009Date of Patent: December 3, 2013Assignee: Nitto Denko CorporationInventors: Akira Hirao, Kunio Nagasaki, Kazuhisa Maeda
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Patent number: 8557351Abstract: The present invention provides a method adhering a layer to a substrate that features defining first and second interfaces by having a composition present between the layer and the substrate that forms covalent bonds to the layer and adheres to the substrate employing one or more of covalent bonds, ionic bonds and Van der Waals forces. In this manner, the strength of the adhering force of the layer to the composition is assured to be stronger than the adhering force of the layer to the composition formed from a predetermined adhering mechanism, i.e., an adhering mechanism that does not include covalent bonding.Type: GrantFiled: July 22, 2005Date of Patent: October 15, 2013Assignee: Molecular Imprints, Inc.Inventor: Frank Y. Xu
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Publication number: 20130251912Abstract: The present invention relates to a process for the preparation of a radiation curable composition comprising at least (meth)acrylic copolymer A and at least one radiation curable epoxy based compound B, said process comprising a first copolymerization step, and a subsequent esterification step.Type: ApplicationFiled: December 13, 2011Publication date: September 26, 2013Inventors: Graham Clark, Jurgen Van Holen, Marc Van Muylder
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Publication number: 20130224417Abstract: An acrylic adhesive tape exhibiting good adhesion to a curved surface and good peel characteristics under a constant load even in the absence of a cross-linking agent includes an acrylic adhesive layer photo-polymerized by irradiation with ultraviolet rays. The acrylic adhesive layer contains: an acrylic polymer A formed by irradiating a solvent-free photo-polymerizable monomer composition containing an acrylic monomer and a photopolymerization initiator with ultraviolet rays so that the acrylic polymer A is formed by photopolymerization of the acrylic monomer and has a weight average molecular weight of 700,000 to 3,000,000 when a cross-linking agent is absent; an acrylic polymer B having a weight average molecular weight of 350,000 to 650,000; and an adhesion-imparting polymer having a weight average molecular weight of 2,000 to 10,000. The acrylic adhesive layer has a molecular weight distribution of 2.4 to 4.4.Type: ApplicationFiled: September 27, 2011Publication date: August 29, 2013Applicant: DEXERIALS CORPORATIONInventors: Takanori Ogata, Azumi Koike
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Publication number: 20130220355Abstract: A multi-layered foil appliqué for decorating nails is cut from a laminated sheet having the following layers: a first adhesive layer residing on a releasable substrate; a base coat residing on the first adhesive layer; a UV-curable adhesive layer residing on the base coat; a foil layer residing on the UV-curable adhesive layer; and a top coat residing on the foil layer. The foil is applied to the UV-curable adhesive layer by contact between the metallic side of a metallized plastic sheet and the adhesive before the adhesive is cured. The bottom coat and top coat are formed from organic solvent-based nail enamels. Sufficient solvent remains in the appliqué to keep it stretchable before use. Residual solvent evaporates after the appliqué is applied to a user's nail.Type: ApplicationFiled: April 9, 2013Publication date: August 29, 2013Inventor: Fa Young Park
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Publication number: 20130192112Abstract: A label and a label manufacturing method for securely curing an adhesive. The label includes a substrate sheet 11, an adhesive layer 12 formed on the substrate sheet 11, and a cured layer 13 formed on part of the adhesive layer 12, in which the cured layer 13 is formed by curing an acrylic-base bonding adhesive. Manufacturing includes applying an adhesive on the substrate sheet 11 to form the adhesive layer 12, applying the bonding adhesive on the adhesive layer 12, and forming a cured layer by irradiating the adhesive layer 12 and the bonding adhesive with an active energy ray to cure the adhesive layer 12 and the bonding adhesive.Type: ApplicationFiled: May 2, 2011Publication date: August 1, 2013Inventors: Hiromi Yamamuro, Yoshihito Fujii
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Publication number: 20130183455Abstract: Provided is a method for producing an pressure-sensitive adhesive sheet having an ultraviolet-ray curing-type acrylic pressure-sensitive adhesive layer that can undergo, about one or more monomers therefor, high rate-polymerization to be excellent in productivity, and is also excellent in balance between pressure-sensitive adhesive performances. The method includes: applying, onto a substrate, an ultraviolet-ray curing-type acrylic pressure-sensitive adhesive composition including a photopolymerization initiator, and a monomer-component set that is/includes an alkyl (meth)acrylate; and radiating ultraviolet rays to the composition, thereby curing the composition to form a pressure-sensitive adhesive layer. In the method, the irradiance of the rays radiated in the pressure-sensitive adhesive layer forming step is 25 mW/cm2 or more.Type: ApplicationFiled: January 10, 2013Publication date: July 18, 2013Applicant: NITTO DENKO CORPORATIONInventor: NITTO DENKO CORPORATION
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Publication number: 20130040069Abstract: Pressure sensitive adhesives comprising an acrylate polymer and surface-modified nanoparticles are described. The surface-modified nanoparticles comprise a nanoparticle having a silica surface and surface modifying groups covalently attached to the silica surface. At least one surface-modifying group is a polymeric silane surface modifying group. At least one surface-modifying group is a non-polymeric silane surface modifying group. Methods of preparing such adhesives, including their exposure to UVA and UVC radiation are also described.Type: ApplicationFiled: April 19, 2011Publication date: February 14, 2013Inventors: Michele A. Craton, Kelly S. Anderson, Belma Erdogan-Haug, Jayshree Seth
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Publication number: 20130011573Abstract: At least one inert-gas supply section is provided in a coating section and a light-irradiating section that are sealingly coupled to each other at a side of the coating section where a base material enters, the coating section coating a photopolymerizable composition onto the base material and the light-irradiating section applying light to the photopolymerizable composition layer after coating. Inert gas supplied from a first inert-gas supply section is sprayed from the inert-gas chamber toward the base material, and is supplied into each of the coating section and the light irradiating section.Type: ApplicationFiled: June 26, 2012Publication date: January 10, 2013Applicant: NITTO DENKO CORPORATIONInventors: Tooru NAKASHIMA, Toshihisa YAMANE
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Publication number: 20120275088Abstract: Techniques or processes for producing assemblies using adhesives and substrate material, such as glass. In one embodiment, the assemblies may be for portable electronic devices. For example, a cover glass of a portable electronic device may have a first layer of a self-leveling adhesive, which may be adhesively coupled with the cover glass. A second layer of a second adhesive, which may be different than the self-leveling adhesive of the first layer, may be adhesively coupled with the first layer. An optical component may be adhesively coupled with the second layer, so as to secure the optical component. The first layer may be cured prior to securing the optical component, so that the optical component may be substantially isolated from stress effects of adhesive cure shrinkage of the first layer. Flexure, warpage or optical distortion of the optical component due to adhesive cure shrinkage may be substantially avoided.Type: ApplicationFiled: April 27, 2011Publication date: November 1, 2012Inventor: Wayne W. Huang
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Publication number: 20120164408Abstract: A flexible substrate structure includes a supporting carrier, a flexible substrate, and a release layer. The flexible substrate is disposed on the supporting carrier. The release layer is disposed between and in contact with the supporting carrier and the flexible substrate. The release layer includes a bonding region with adhesion property, the bonding region is for bonding the flexible substrate and the supporting carrier together, and a release region without adhesion property, the release region is for supporting the flexible substrate.Type: ApplicationFiled: June 30, 2011Publication date: June 28, 2012Inventors: Keh-Long Hwu, Pin-Fan Wang, Chih-Jen Hu
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Publication number: 20120156483Abstract: An object of the present invention is to obtain a pressure-sensitive adhesive tape or pressure-sensitive adhesive sheet which is capable of free design of a pressure-sensitive adhesive and is peelable after use without adding special components to the pressure-sensitive adhesive, and to obtain a base material for use in such a pressure-sensitive adhesive tape or pressure-sensitive adhesive sheet. The base material for pressure-sensitive adhesive tape or pressure-sensitive adhesive sheet according to the present invention, the base material being a composite film containing a urethane polymer having an acryloyl group at its molecular chain end and a (meth)acrylic polymer, in which the composite film has a water absorption ratio of 5% or more. A (meth)acrylic monomer for forming the (meth)acrylic polymer preferably contains at least one compound selected from the group consisting of (meth)acrylic acid and (meth)acryloylmorpholine.Type: ApplicationFiled: August 26, 2010Publication date: June 21, 2012Applicant: NITTO DENKO CORPORATIONInventors: Yuta Shimazaki, Eiichi Imoto, Kunio Nagasaki
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Publication number: 20120140329Abstract: A light guide body includes a first solidified colloid layer, a second solidified colloid layer and a third solidified colloid layer. The first solidified colloid layer has a number of light-scattering microstructures at an upper portion thereof. The second solidified colloid layer is formed on and coming into contact with the upper portion of the first colloid layer, and the second colloid layer covers the microstructures. The third solidified colloid layer is formed on the second colloid layer, and the third colloid layer has a plurality of light condensing prisms at an opposite side thereof to the second colloid layer. The light guide body has an integral structure with a number of optical functions. A method for making the light guide body is also provided.Type: ApplicationFiled: February 15, 2011Publication date: June 7, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: SEI-PING LOUH
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Publication number: 20110318579Abstract: The present invention relates to a pressure-sensitive adhesive transfer tape, taking the form of a carrierless adhesive tape with an adhesive layer comprising a pressure-sensitive adhesive based on a poly(meth)acrylate copolymer with the following monomers: a1) acrylic acid and/or acrylic esters of the following formula: CH2?C(R1)(COOR2), where R1=H or CH3 and R2 is an alkyl chain with 1-30 C atoms, a2) olefinically unsaturated monomers with functional groups, with monomers of group a1) being present to an extent of at least 50% by weight, based on the total component (a), and with monomers of group a2) being present at 0%-30% by weight, based on the total component (a), and b) a photoinitiator with a fraction of 0%-5% by weight, based on the overall polymer mixture, the pressure-sensitive adhesive being crosslinked to differing extents on its top and bottom faces by actinic radiation, the crosslinking of the pressure-sensitive adhesive being such that on both its top face and its bottom face it has a PSTC-1Type: ApplicationFiled: January 22, 2010Publication date: December 29, 2011Applicant: tesa SEInventors: Marc Husemann, Daniel Klier, Bernd Luhmann
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Patent number: 8034417Abstract: There can be provided a casting film for producing a ceramic green sheet which film comprises a substrate film, an undercoat layer and a cured layer, wherein the undercoat layer is composed of a condensation polymer from a metal alkoxide and/or a partially hydrolyzed product of a metal alkoxide, and the cured layer is formed by heat treating at 40 to 120° C., an addition reaction type silicone resin composition containing a photosensitizer in a coating amount of 0.01 to 0.3 g/m2 expressed in terms of solid content, and thereafter ultraviolet irradiating the composition to cure the same.Type: GrantFiled: February 23, 2010Date of Patent: October 11, 2011Assignee: Lintec CorporationInventors: Tomomi Fukaya, Toru Nakamura
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Patent number: 7985477Abstract: A cationically polymerizable composite coating composition comprising: a) a condensation product of at least one hydrolyzable silane having a fluorine-containing group, b) at least one cationically polymerizable organic resin, and c) a cationic initiator, provides, upon curing, substrates with an alkali-resistant, liquid-repellent coating. The composite coating composition may be used in pattern forming methods.Type: GrantFiled: December 8, 2005Date of Patent: July 26, 2011Assignees: Leibniz- Institut Fuer Neue Materialien Gemeinnuetzige GmbH, Canon Kabushiki KaishaInventors: Helmut Schmidt, Carsten Becker-Willinger, Pamela Kalmes, Etsuko Hino, Norio Ohkuma
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Publication number: 20110159283Abstract: An adhesive binder, an adhesive composition including the same, an optical member, and associated methods, the adhesive binder including a (meth)acrylic copolymer having urethane, hydroxyl, aromatic, and vinyl groups in side chains thereof.Type: ApplicationFiled: December 28, 2010Publication date: June 30, 2011Inventors: Kyoung Jin HA, Kil Sung Lee, Mi Sun Kim, Irina Nam, Chang Min Lee
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Patent number: 7964249Abstract: Method for producing a polyacrylate adhesive compound by a hot-melt method in which a polyfunctional ?-cleaving initiator, which is present as an oligomer, is added to the polymer to be crosslinked prior to the hot-melt method and ultraviolet crosslinking is carried out after treatment in the hot-melt method.Type: GrantFiled: October 5, 2001Date of Patent: June 21, 2011Assignee: tesa SEInventors: Ulf Cartellieri, Marc Husemann, Christian Ring, Stephan Zöllner
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Patent number: 7919140Abstract: The present invention relates to a process for producing a pressure-sensitive adhesive layer, which includes irradiating a photopolymerizable acrylic pressure-sensitive adhesive composition layer provided between two films with an active energy beam to polymerize the photopolymerizable acrylic pressure-sensitive adhesive composition layer, in which the polymerization is performed while a layer of a composition for preventing polymerization inhibition which is curable with an active energy beam in the atmosphere is provided on a side surface of the photopolymerizable acrylic pressure-sensitive adhesive composition layer. According to the process for producing a pressure-sensitive adhesive layer of the present invention, owing to the construction as discussed above, it is possible to reuse a film.Type: GrantFiled: January 31, 2008Date of Patent: April 5, 2011Assignee: Nitto Denko CorporationInventors: Kazuhisa Maeda, Isao Hirose, Kunio Nagasaki