At Least Two Polymers Derived From Carboxylic Acid Ester Reactants Patents (Class 525/228)
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Publication number: 20130102725Abstract: A crosslinkable rubber composition comprising 0.2 to 10 parts by weight of an aromatic secondary amine-based anti-aging agent and 0.5 to 20 parts by weight of a polyamine-based crosslinking agent with respect to 100 parts by weight of a nitrile rubber including an ?,?-ethylenically unsaturated nitrile unit and an ?,?-ethylenically unsaturated dicarboxylic acid monoester unit, and with iodine value of 120 or less. The present invention can provide a crosslinkable rubber composition, providable of a cross-linked rubber excellent in a variety of properties such as mechanical strength and small in compression set, and a cross-linked rubber obtained by cross-linking the rubber composition.Type: ApplicationFiled: December 14, 2012Publication date: April 25, 2013Applicant: ZEON CORPORATIONInventor: ZEON CORPORATION
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Patent number: 8404755Abstract: Polyester compositions described herein have properties which are particularly suitable for extrusion blow molding (EBM). These properties relate primarily to the rate of crystallization and melt strength or melt viscosity. Articles prepared from the polyester compositions exhibit good clarity, aesthetics, and other physical properties. The polyester compositions also exhibit broad molecular weight distribution (MWD), resulting in improved processability and melt strength. The crystallization rate allows for good drying characteristics while also enabling the use of regrind. In addition, the compositions exhibit improved recyclability, such as in existing PET recycling streams. In one aspect, articles are prepared in an extrusion blow molding method by combining a dry first polyester copolymer component, a dry second polyester component, and a chain extender to form a feed material suitable for extrusion blow molding.Type: GrantFiled: April 17, 2009Date of Patent: March 26, 2013Assignee: PepsiCo, Inc.Inventor: Clarence Sequeira
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Publication number: 20130059980Abstract: To provide a highly transparent thermoplastic resin composition without requiring, for example, a special molecular design or incorporation of an additive, with the refractive index of the composition being readily controllable. The highly transparent and refractive-index-controllable thermoplastic resin composition can be produced by blending a thermoplastic resin (A) containing a structural unit derived from a (meth)acrylic acid ester monomer represented by a specific chemical formula and a structural unit derived from an aromatic vinyl monomer represented by a specific chemical formula, with a thermoplastic resin (B) obtained by hydrogenating aromatic double bonds of a thermoplastic resin which contains a structural unit derived from a (meth)acrylic acid ester monomer represented by a specific chemical formula and a structural unit derived from an aromatic vinyl monomer represented by a specific chemical formula.Type: ApplicationFiled: May 2, 2011Publication date: March 7, 2013Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yoshio Aoki, Kazuya Sato, Hiroki Oguro, Nobuyuki Koike
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Patent number: 8389598Abstract: The present invention provides a dental polymerizable composition which has excellent handling property by the brush-dip technique and the bulk-mix technique, particularly excellent handling property by the brush-dip technique, contains few air bubbles, is excellent in color tone, polishability, mechanical properties and the discoloration resistance of a cured product at the time of curing and is used for many purposes such as the repair of a denture base or artificial tooth, a tooth crown prosthetic restoration and a temporary prosthetic restoration which is used until a bridge is completed when it is a two-composition type self-curing resin. The dental polymerizable composition comprises three different types of (meth)acrylate polymer particles, each having specific particle size characteristics and specific molecular weight characteristics.Type: GrantFiled: September 12, 2008Date of Patent: March 5, 2013Assignee: Sun Medical Co., Ltd.Inventors: Yasukazu Saimi, Yasuhiro Nukii, Masami Arata
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Patent number: 8383734Abstract: The present invention relates to bone cements and, more particularly, to acrylic-based orthopedic bone cements, their use in spinal applications, and methods for making the same. An embodiment of the present invention provides a method of grafting PMMA brushes on cross-linked PMMA nanospheres comprising at least one of the following steps: performing a hydrolysis reaction of surface methyl ester groups of said cross-linked PMMA nanospheres to form surface carboxylic acid groups of said cross-linked PMMA nanospheres; forming a 2-aminoethyl acrylate compound; coupling said surface carboxylic acid groups of said cross-linked PMMA nanospheres with said 2-aminoethyl acrylate compound to form a coupled compound with an initiating site; and grafting said PMMA brushes onto said initiating site.Type: GrantFiled: April 21, 2010Date of Patent: February 26, 2013Assignee: Syracuse UniversityInventors: Julie M. Hasenwinkel, Jeremy L. Gilbert, Danieli C. Rodrigues, Rebecca Bader
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Publication number: 20130046060Abstract: The present invention provides a material for a golf ball which increases the spin rate in wet conditions and allows a golf ball to stop well on approach shots, and a golf ball produced using the material for a golf ball. The present invention relates to a material for a golf ball including an acrylic elastomer, and having shear loss moduli G1? (Pa) and G2? (Pa) which satisfy the following inequality (1): G1?/G2?>1.65??(1) when the shear loss moduli are measured with a dynamic viscoelasticity apparatus under measurement conditions for G1? of mode: shear, vibration frequency: 10 Hz, temperature: ?30° C., and strain: 0.05%, and measurement conditions for G2? of mode: shear, vibration frequency: 10 Hz, temperature: 0° C., and strain: 0.05%.Type: ApplicationFiled: August 17, 2012Publication date: February 21, 2013Inventor: Toshiyuki TARAO
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Patent number: 8372517Abstract: An acrylic thermoplastic resin composition is obtained by melt-kneading a methacrylic resin (A) and a polyvinyl acetal resin (B) at a resin temperature of not less than 140° C. while applying shear at a shear rate of 100 sec?1 or more, and then cooling the kneaded product to not more than 120° C. In the acrylic thermoplastic resin composition, at least the methacrylic resin (A) forms a continuous phase, and among glass transition temperatures of the acrylic thermoplastic resin composition, a glass transition temperature TgA P ascribed to the methacrylic resin (A) indicates a value between a glass transition temperature (TgA) of the methacrylic resin (A) alone and a glass transition temperature (TgB) of the polyvinyl acetal resin (B) alone. A film- or sheet-like molded article is obtained by molding the resin composition. An acrylic resin composite is obtained by laying a layer of metal and/or metal oxide on at least one side of the acrylic resin molded article.Type: GrantFiled: October 23, 2007Date of Patent: February 12, 2013Assignee: Kuraray Co., Ltd.Inventors: Kazuki Tokuchi, Nobuhiro Moriguchi, Yohei Kamata, Yukiatsu Komiya
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Publication number: 20120322932Abstract: Provided is a molding composition comprising, based on the total weight of the composition, (A) 50.0% by weight to 99.5% by weight of at least one (co)polymer which is a homopolymer or copolymer of at least 80% by weight of methyl methacrylate, (B) 0.5% by weight to 50.0% by weight of at least one copolymer obtained by polymerization of a monomer, and (C) at least one low molecular weight (meth)acrylate (co)polymer having a solution viscosity in chloroform at 25° C. (ISO 1628—part 6) of less than or equal to 55 ml/g.Type: ApplicationFiled: June 26, 2012Publication date: December 20, 2012Applicant: EVONIK ROEHM GMBHInventors: Klaus Schultes, Werner Hoess, Nils Mehler
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Patent number: 8329822Abstract: A polymer composition comprising A) a first polymer comprising (a) hydrophobized nanoparticle; (b) C1 to C18, straight, branched, or cyclic alkyl(meth)acrylate; (c) N-methylol(meth)acrylamide or a monomer of formula (I) R—(OCH2CH2)a—O—C(O)—C(R1)?CH2??(I) ?wherein R is hydrogen, C1-C4 alkyl, or —C(O)—C(R1)?CH2, and R1 is H or —CH3; said first polymer in contact with B) a second polymer comprising (d) a fluorinated monomer of formula (II) Rf1-L-X—C(O)—C(R)?CH2??(II) ?wherein Rf1 is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having 2 to about 100 carbon atoms; optionally interrupted by 1 to about 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least 2:1 and no oxygen atoms are bonded to each other; L is a bond or a linear or branched divalent linking group having 1 to about 20 carbon atoms, said linking group optionally interrupted by 1 to about 4 hetero-radicals selected from the group consisting of —O—, —NR6—, —S—, —SO—, —SO2—, and —N(R6)Type: GrantFiled: November 9, 2009Date of Patent: December 11, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Gerald Oronde Brown, Victoria A. Helinski
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Publication number: 20120252978Abstract: The present invention relates to a polymerization-initiating agent for acrylic adhesives containing an epoxidized silane.Type: ApplicationFiled: September 15, 2010Publication date: October 4, 2012Applicant: JacretInventor: Arnaud Curet
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Patent number: 8273452Abstract: A melt processed film comprising a polymer having several acrylic components.Type: GrantFiled: June 27, 2008Date of Patent: September 25, 2012Assignee: Rohm and Haas CompanyInventors: Hailan Guo, Jiun-Chen Wu
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Patent number: 8258240Abstract: The present invention provides a water-dispersed acrylic PSA composition suitable for forming a PSA sheet. The PSA composition contains 0.5 to 15 parts by weight of an acrylic copolymer (polymer H) with a Tg of 30° C. to 120° C. in relation to 100 parts by weight of an acrylic copolymer (polymer L) with a Tg of ?70° C. to ?50° C. The polymer L is obtained by polymerization of a monomer starting material comprising 60 wt % or more of an alkyl (meth)acrylate with a C8-C12 alkyl group; and 0.5 to 10 wt % of a radical polymerizable monomer with a carboxyl group.Type: GrantFiled: October 14, 2009Date of Patent: September 4, 2012Assignee: Nitto Denko CorporationInventors: Toshihide Suzuki, Kenichi Yamamoto, Yutaka Tosaki, Akiko Takahashi
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Publication number: 20120219544Abstract: The adhesive composition for soft tissues, the adhesive composition for wound dressing or the wound dressing agent composition of the present invention is an adhesive composition for soft tissues, an adhesive composition for wound dressing or a wound dressing agent composition, comprising a monomer (A), a polymer (B) and a polymerization initiator composition (C) containing an organoboron compound, and is characterized by having a viscosity of 0.4 to 75,000 cp within 30 seconds after mixing of the components (A), (B) and (C). The composition of the present invention not only has low toxicity, low harmfulness and high adhesive strength but also is excellent in workability during application and is capable of forming films of excellent properties.Type: ApplicationFiled: November 18, 2010Publication date: August 30, 2012Applicant: MITSUI CHEMICALS, INC.Inventors: Noriaki Asada, Shinya Aoki, Hiroshi Naruse, Shoichi Miyakoshi, Masami Arata
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Publication number: 20120157566Abstract: A dental appliance comprising a hard, shaped body having at least one portion comprising a polymerized blend of: From 0% to about 50% of an uncrosslinked polymer capable of dissolving in component;From about 0% to 50% of a monofunctional polymerizable monomer;From about 0% to 40% of a highly crosslinked polymer in the form of ground particles having average diameters up to about 500 microns;From about 0% to 50% of a crosslinked polymer in the form of discrete particles having average diameters up to about 500 microns and being easily swellable by said monomer; and From about 5% to about 35% of a di- or polyfunctional crosslinking agent.Type: ApplicationFiled: January 26, 2010Publication date: June 21, 2012Inventor: Benjamin J. Sun
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Patent number: 8202943Abstract: A fluidity-improving agent containing 0.5 to 99.5 parts by mass of a polymer (A) which is obtained by polymerizing a monomer mixture (a) containing 0.5 to 99% by mass of (a1) an aromatic vinyl monomer, 0.5 to 99% by mass of (a2) a phenyl(meth)acrylate or a phenyl(meth)acrylate containing a substituent in a phenyl group, and 0.5 to 5% by mass of (a3) a vinyl monomer including a functional group (X), and 0.5 to 99.5 parts by mass of a polymer (B) which is obtained by polymerizing a monomer mixture (b) containing (b1) a phenyl(meth)acrylate or a phenyl(meth)acrylate containing a substituent in a phenyl group with a compound including a functional group (Y) reactive with the functional group (X), where the total of the polymer (A) and the polymer (B) is 100 parts by mass.Type: GrantFiled: December 25, 2007Date of Patent: June 19, 2012Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Shinji Matsuoka, Yasuhiko Nabeshima
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Publication number: 20120142796Abstract: An object of the present invention is to provide a foaming vinyl chloride resin composition having excellent foaming properties and providing a foam molded product with an excellent appearance by enhancing the melt strength of the vinyl chloride resin composition. A processability improver for foam molding according to the present invention includes a (meth)acrylic polymer powder with a weight average molecular weight of 2,000,000 to 7,000,000, wherein the (meth)acrylic polymer powder includes 1 to 20% by weight of a (meth)acrylic polymer (A) with a weight average molecular weight of 10,000 to 300,000, and 80 to 99% by weight of a (meth)acrylic polymer (B) with a weight average molecular weight of 2,000,000 to 7,000,000.Type: ApplicationFiled: May 25, 2010Publication date: June 7, 2012Applicant: KANEKA CORPORATIONInventors: Mitsutaka Sato, Hideyuki Sakamoto, Hiroomi Tokimoto
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Patent number: 8178619Abstract: The present invention provides a (meth)acrylic polymer containing 15 to 65 parts by weight of a polymer (A) having a specific viscosity of 0.90 to 2.00 and containing 70 to 100 weight percent of methyl methacrylate, 0 to 30 weight percent of a (meth)acrylic ester other than methyl methacrylate, and 0 to 10 weight percent of another monomer copolymerizable with these; 20 to 75 parts by weight of a polymer (B) having a specific viscosity of 0.40 or more and less than 0.90 and containing 70 to 100 weight percent of methyl methacrylate, 0 to 30 weight percent of a (meth)acrylic ester other than methyl methacrylate, and 0 to 10 weight percent of another monomer copolymerizable with these; and 1 to 30 parts by weight of a polymer (C) having a specific viscosity of 0.80 to 2.Type: GrantFiled: March 8, 2006Date of Patent: May 15, 2012Assignee: Kaneka CorporationInventors: Mitsutaka Sato, Yasushi Nakanishi
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Publication number: 20120108751Abstract: A thermoplastic composition comprising the melt blending product of one or more thermoplastic polymers; and from 2 to 20 PHR, of one or more gloss reducing additives wherein each gloss reducing additive comprises a (meth)acrylate copolymer having a glass transition temperature of greater than or equal to 40° C. and 0.001 to 0.04 PHM derived from one or more crosslinking monomers and/or graft-linking agents having two or more ethylenically unsaturated radicals capable of free-radical polymerization, wherein a test specimen produced from the thermoplastic composition has roughness according to DIN 4768 of Ra greater than or equal to 0.6 microns, Rz greater than or equal to 6 microns, Rmax greater than or equal to 7 microns, and a gloss less than 65, 75 degree angle, is provided. Methods for producing the thermoplastic compositions, methods for producing articles from the thermoplastic compositions and such articles are also provided.Type: ApplicationFiled: October 10, 2011Publication date: May 3, 2012Applicant: ROHM AND HAAS COMPANYInventors: Paul R. Van Rheenen, Veera Nelliappan, Seth T. Stewart
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Publication number: 20120107595Abstract: The present invention relates to a plastics moulding composition encompassing at least one poly(meth)acrylate A) and at least one impact-modified poly(meth)acrylate B), wherein the die swell of the plastics moulding composition is at least 15%, measured at 5 MPa and 2200 C to DIN 54811 (1984), and the melt flow rate of the poly(meth)acrylate A) is at least 10 ml per 10 minutes, measured to ISO 1133 at 2300 C with a load of 3.8 kg. The present invention also describes mouldings which encompass the plastics moulding composition described above, and processes for the production of the said mouldings.Type: ApplicationFiled: July 7, 2009Publication date: May 3, 2012Applicant: EVONIK ROESH GMBHInventors: Werner Hoess, Klaus Schultes, Guomin Liu
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Publication number: 20120071608Abstract: Methods for making a heterogeneous polymer blend comprising one or more anionic polymers, one or more cationic polymers, and one or more non-ionic polymers, which method comprises (a) adding to a non-neutral solution a first amount of polymerization initiator and one or more anionic or cationic monomers, wherein each monomer has the same charge; (b) a second amount of the polymerization initiator and one or more non-ionic monomers; (c) adding a third amount of the polymerization initiator and one or more ionic monomers that are oppositely charged from the monomers of (a); adding stepwise, a fourth amount of the polymerization initiator to react any residual monomer, and (e) neutralizing the resulting polymer blend. Also claimed are heterogeneous polymer blends containing polymers formed from one or more anionic, cationic, and non-ionic monomers, either polymerized in situ or separately and then combined.Type: ApplicationFiled: November 10, 2011Publication date: March 22, 2012Inventors: Frank J. Sutman, Joseph M. Mahoney
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Patent number: 8124664Abstract: The present invention relates to an acrylic foam composition comprising an acrylic polymer and an acrylic processing aid which exhibits increased flexibility characteristics over other types of foam compositions.Type: GrantFiled: October 30, 2009Date of Patent: February 28, 2012Assignee: Rohm and Haas CompanyInventors: Paul Van Rheenen, Sekhar Sunduram
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Patent number: 8119728Abstract: A composition is described, encompassing a constituent selected from the group consisting of a modified resin acid (I), a fatty acid (II) and a mixture composed of a modified resin acid (I) and of a fatty acid (II), where the degree of neutralization of the constituent is from 104 to 165%. Its use for the production of microgels is also described.Type: GrantFiled: November 9, 2009Date of Patent: February 21, 2012Assignee: LANXESS Deutschland GmbHInventor: Werner Obrecht
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Publication number: 20120035296Abstract: The invention has as its objects the provision of a bone cement composition, a bone cement composition kit for obtaining the bone cement composition, and a production method of a bone cement hardened material, which are short in doughing time that is a time required to become a state in which a good handling operation can be conducted, and have consequently capable of achieving a high working efficiency by shortening the time required before the handling operation is started. The bone cement composition of the invention contains large-diameter (meth)acrylate polymer particles having an average particle diameter of 10 to 60 ?m, small-diameter (meth)acrylate polymer particles having an average particle diameter of 0.1 to 2.0 ?m, a (meth)acrylate monomer and a polymerization initiator, wherein the content of the small-diameter (meth)acrylate polymer particles is 5 to 30% by mass based on the total mass of the small-diameter (meth)acrylate polymer particles and the large-diameter (meth)acrylate polymer particles.Type: ApplicationFiled: February 23, 2010Publication date: February 9, 2012Inventors: Takashi Nakamura, Koji Goto, Takehiro Shibuya, Yoshimichi Ueda, Tokuo Suita, Masashi Imamura, Hiroaki Nishii
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Publication number: 20120022218Abstract: In one aspect of the present invention, there is provided a polymeric film comprising one or more polyolefin and one or more acrylic polymer, wherein the weight ratio of said acrylic polymer to said polyolefin is from 0.02:1 to 5:1, wherein said polyolefin comprises polymerized units of one or more functional monomer, wherein the amount of said polyolefin in said polymeric film is more than 30% by weight, based on the weight of said polymeric film, and wherein said acrylic polymer comprises polymerized units of one or more hydrogen-bondable monomer.Type: ApplicationFiled: July 11, 2011Publication date: January 26, 2012Inventors: Hailan Guo, Jian-Yang Cho
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Publication number: 20120000599Abstract: Provided is a adhesive and an adhesive sheet which exhibit excellent chip-holding properties during dicing and from which chips can be easily stripped during pick up, even when considering changes over time. It is a adhesive composition which contains both (A) a (meth)acrylic acid ester copolymer component that has functional-group containing monomer units and a weight average molecular weight of less than 350,000 and (B) a (meth)acrylic ester copolymer component that has functional-group containing monomer units and a weight average molecular weight of 350,000 to 2,000,000 at a weight ratio of 10:90 to 90:10, and further contains 0.5 to 20 parts by mass of a crosslinking agent per 100 parts by mass of components (A) and (B) in total, the crosslinking agent being a crosslinking agent that reacts with both the functional groups of the component (A) and the functional groups of the component (B).Type: ApplicationFiled: February 9, 2010Publication date: January 5, 2012Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Tomomichi Takatsu, Masashi Kume
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Publication number: 20110318515Abstract: The invention relates to methyl methacrylate characterized in that at least one portion of the carbons thereof is biologically sourced and, more specifically, in that it contains between 0.2×10?10 and 1.2×10?10 wt.-% of 14C in relation to total carbon weight according to the ASTM D6866 standard. The preparation method comprises the use of acetone cyanohydrin as a raw material, said acetone cyanohydrin being obtained by condensing cyanohydric acid on acetone, and the methyl methacrylate is prepared using a process involving the addition of methanol. According to the invention, at least one from among the acetone, cyanohydric acid and methanol is obtained by means of a reaction or series of reactions involving the biomass.Type: ApplicationFiled: May 28, 2009Publication date: December 29, 2011Applicant: Arkema FranceInventors: Jean-Luc Dubois, Jean Francois Crolzy, Lucie Campora, Camille Croizy, Pauline Croizy
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Patent number: 8084543Abstract: Light-scattering compositions comprising diffuser polymer particles are disclosed. Also disclosed are methods of making and using the light-scattering compositions.Type: GrantFiled: January 10, 2011Date of Patent: December 27, 2011Assignee: Rohm and Haas CompanyInventors: Edward E. LaFleur, Jiun-Chen Wu
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Publication number: 20110310462Abstract: This invention relates to coloured polymer particles preferably with surface functionality for charge retention, a process for their preparation, the use of these particles for the preparation of an electrophoretic device, and to colour electrophoretic displays comprising such particles.Type: ApplicationFiled: January 29, 2010Publication date: December 22, 2011Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Louise Diane Farrand, Ashley Nathan Smith, Mark James, Jonathan Henry Wilson, Daniel Walker
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Patent number: 8080612Abstract: The present invention provides polymeric compositions having a high polymer size and a low Tg. These novel compositions are useful as plastic additives. Also provided is a method of improving the processing of a matrix resin by adding one or more of the novel polymeric compositions.Type: GrantFiled: July 14, 2005Date of Patent: December 20, 2011Assignee: Rohm and Haas CompanyInventors: Edward Joseph Troy, David John McDonald, Jane Elizabeth Weier
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Publication number: 20110297896Abstract: The present invention relates to an acrylic copolymer resin containing: 1) an alklyl (meth)acrylate-based monomer; 2) a (meth)acrylate-based monomer containing an aliphatic ring and/or an aromatic ring; and 3) at least an imide-based monomer or a styrene-based monomer, to a resin composition containing said acrylic copolymer resin and a resin containing an aromatic ring and/or an aliphatic ring in the main chain thereof, to an optical film comprising said resin composition, and to a liquid crystal display device comprising said optical film. The optical film according to the present invention has excellent heat resistance, optical transparency, etc.Type: ApplicationFiled: February 18, 2010Publication date: December 8, 2011Inventors: Su-Kyung Kim, Byoung-ll Kang, Dae-Woo Lee, Byoung-Kue Chun, Chang-Hun Han, Da-Eun Sung
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Publication number: 20110263739Abstract: A hardenable two part acrylic composition, a polymer component of the two part hardenable composition and a method of producing a polymer component of the two part composition are disclosed. The hardenable two part acrylic composition includes an acrylic polymer composition first part and an acrylic monomer composition second part. The acrylic polymer composition first part includes a first type of acrylic polymer particles wherein each first type of acrylic polymer particle is formed of a network of coalesced emulsion polymerized acrylic microparticles or is microporous. The acrylic polymer composition may include emulsion polymerised acrylic polymer particles of particle size between 10 and 2000 nm and includes the use of acrylic polymer particles formed of a network of coalesced emulsion polymerized acrylic microparticles as a dough time reduction agent in a hardenable two part acrylic composition.Type: ApplicationFiled: August 13, 2009Publication date: October 27, 2011Applicant: LUCITE INTERNATIONAL UK LIMITEDInventors: Michael Stephen Chisholm, David McDonald, Sera Saheb Abed-Ali
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Patent number: 8043424Abstract: Aqueous coating composition comprising an oxidatively drying resin and an alkali-soluble acrylate having an acid number of at least 15 mg KOH/g in a content of at least 1.5 wt. %. Optionally a second acrylate can also be used, such as a polyurethane acrylate.Type: GrantFiled: May 30, 2006Date of Patent: October 25, 2011Assignee: Akzo Nobel Coatings International B.V.Inventors: Detlef Thiel, Irene Buss
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Patent number: 8025758Abstract: The invention relates to a heat-sealing system consisting of an olefin polymer or olefin copolymer A, a methacrylate copolymer B, a graft polymer AB that is composed of the aforementioned components, a polyester C and an optional polymer D or an optional polymer blend DA, in addition to a solvent or solvent mixture L. The heat-sealing system is characterised by a high heat resistance, excellent barrier properties and short sealing times in relation to various plastics and aluminium foil or PET film.Type: GrantFiled: June 6, 2006Date of Patent: September 27, 2011Assignee: Evonik Rohm GmbHInventors: Gerd Loehden, Sven Balk, Manfred Braum, Juergen Hartmann, Marita Kaufmann, Michael Wicke
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Publication number: 20110224377Abstract: Poly(vinyl ester) block copolymers comprising blocks of two or more different vinyl ester repeating units. The vinyl ester repeating units may be wherein R is H, C1-C22 straight or branched alkyl or alkylhalide, or phenyl or substituted phenyl, and n is 10 to 12,000. Methods of making poly(vinyl ester) block copolymers, including reversible-addition fragmentation chain transfer, organobismuthine-mediated living radical polymerization, and cobalt mediated radical polymerization. Chemically-degradable and biodegradable polymers comprising poly(vinyl ester) block copolymers.Type: ApplicationFiled: March 11, 2010Publication date: September 15, 2011Inventors: Mahesh Kalyana Mahanthappa, Corinne Elizabeth Lipscomb
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Patent number: 7999032Abstract: An acrylic resin composition suitable for use as films excellent in transparency, weatherability, hardness, impact resistance, flex cracking resistance, and formability. The resin composition comprises an acrylic graft copolymer (A) including a rubbery acrylic ester polymer (A-a) and a methacrylic polymer (B) comprising 80 wt. % or more methyl methacrylate units, the acrylic resin composition having a specific value of reduced viscosity (0.2-0.8 dl/g), specific values of content (5-45 wt. %) and average particle diameter (50-200 nm) of the rubbery polymer (A-a), a specific relationship between the particle diameter and the crosslinking agent amount (0.02d?w?0.05d; d, average particle diameter (nm); w, amount of crosslinking agent (wt. %)), and a specific value of the degree of grafting (50-250%). The resin composition contains an ultraviolet absorber incorporated therein through copolymerization.Type: GrantFiled: July 5, 2006Date of Patent: August 16, 2011Assignee: Kaneka CorporationInventors: Kazuhito Wada, Kimihide Nishimura, Norito Doi
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Publication number: 20110166293Abstract: The present invention relates to a composition containing at least one (meth)acrylic polymer and at least one copolymer containing motifs from at least one first monomer (A), enabling compatibility with said (meth)acrylic polymer, and at least one second motif (B) carrying an associative group. The invention also relates to the use of such a copolymer having associative groups to improve the properties of a (meth)acrylic polymer. The invention also relates to uses of the abovementioned composition.Type: ApplicationFiled: June 12, 2009Publication date: July 7, 2011Applicants: Arkema France, CNRSInventors: Nicolas Dufaure, François-Genes Tournilhac, Manuel Hidalgo, Ludwik Leibler
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Publication number: 20110152461Abstract: Disclosed is a resin having excellent impact resistance and color, and a method of preparing the same, and more specifically, a resin having the excellent impact resistance and color, and a method of preparing the same, in which the resin includes (a) an occlusion seed consisting of i) a base seed including 99.95 to 99 wt % of alkyl methacrylate and 0.05 to 1 wt % of crosslinker, and ii) a copolymer of aromatic vinyl compound and alkyl acrylate occluding the base seed; (b) a polymer core surrounding the occlusion seed; and (c) a polymer shell surrounding the core, and according to the present invention, it is effective in providing a resin having superior impact strength, transparency, and color, in which the resin can be used as an excellent impact modifier when applying on a polymethylmethacrylate resin, and a method of preparing the same.Type: ApplicationFiled: November 10, 2010Publication date: June 23, 2011Applicant: LG CHEM, LTD.Inventors: Se Eun LEE, Dong Jo Ryu, Seon Hee Han, Jeong Heon Ahn
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Publication number: 20110144262Abstract: The invention provides a process for producing spiral polymers controlled in the direction of spiral winding easily from inexpensive general-purpose polymers; and spiral polymers controlled in the direction of spiral winding. The invention relates to a process for the production of syndiotactic polymethacrylate- or polyacrylate-type spiral polymers controlled in the direction of spiral winding which comprises dissolving a syndiotactic polymethacrylate- or polyacrylate-type polymer and a chiral compound in a solvent preferably under heating, subjecting the obtained solution to cooling or concentration to form a solid matter, and separating the solid matter; and so on.Type: ApplicationFiled: March 18, 2008Publication date: June 16, 2011Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Takehiro Kawauchi, Jiro Kumaki, Eiji Yashima
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Patent number: 7960476Abstract: An acrylic resin composition containing the following acrylic resins (1) and (2): an acrylic resin (1) containing a structural unit (a) derived from a monomer (a) and a structural unit (b) derived from a monomer (b); an acrylic resin (2) having a molecular weight of 1,100,000 to 1,500,000, and containing the structural unit (a) as the main component and a structural unit(c)derived from a monomer (c) and substantially not containing the structural unit (b); (a): a (meth)acrylate of the formula (A) (wherein, R1 and R2 are defined in the specification), (b): a monomer containing an olefinic double bond and at least one 5- or more-membered heterocyclic group in the molecule, (c): a monomer not containing 5- or more-membered heterocyclic group and containing one olefinic double bond and at least one polar functional group which is a carboxyl, hydroxyl, amide, amino, epoxy, oxetanyl, aldehyde or isocyanate group in the molecule.Type: GrantFiled: January 4, 2008Date of Patent: June 14, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Akira Kawamura, Ryu Takeko, Tomo Iwata
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Patent number: 7947774Abstract: Solution blending of masterbatch of cationically functionalized polyvinyl acetate copolymer/silicate nanocomposite where the silicate is substantially exfoliated, and ethylene-vinyl acetate copolymer (EVA), produces product of increased tensile strength and Young's Modulus compared to neat EVA and reduced flammability compared to neat EVA. The product can be injection molded or compression molded or extruded without loss of these advantages.Type: GrantFiled: October 22, 2007Date of Patent: May 24, 2011Assignee: Cornell Research Foundation, Inc.Inventors: Dotsevi Y. Sogah, Yaru Shi
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Patent number: 7939604Abstract: Provided are a pressure sensitive adhesive composition for optical members and a pressure sensitive adhesive composition for optical members. The pressure sensitive adhesive composition for optical members according to the present invention comprises 100 parts by weight of an acrylic polymer (A) having a weight-average molecular weight of 500,000 or more, containing at least 50 wt % alkyl (meth)acrylate having an alkyl group with 5 or more carbon atoms and 0.2 to 2 wt % unsaturated carboxylic acid as the monomer unit, 0.1 to 4 parts by weight of an acrylic polymer (B) having a weight-average molecular weight of 2,000 to 50,000, containing at least 70 wt % alkyl (meth)acrylate and 1 to 7 wt % unsaturated carboxylic acid as the monomer unit and having a higher carboxylic acid equivalent than that of the acrylic polymer (A), 0.01 to 1 part by weight of a silane coupling agent, and a crosslinking agent.Type: GrantFiled: April 24, 2008Date of Patent: May 10, 2011Assignee: Nitto Denko CorporationInventors: Yutaka Moroishi, Fumiko Nakano, Tetsuo Inoue, Yoshihide Kawaguchi, Kohei Yano
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Patent number: 7927703Abstract: Described are adhesive compositions containing a mixture of a pressure sensitive adhesive, a high Tg polymer, and a crosslinker to form a compatibilized blend that is optically clear. Methods of using the adhesive compositions, and multilayer assemblies such as optical elements prepared using the adhesives, are also provided.Type: GrantFiled: April 11, 2003Date of Patent: April 19, 2011Assignee: 3M Innovative Properties CompanyInventors: Jianhui Xia, Ying-Yuh Lu, Zhiming Zhou
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Publication number: 20110070434Abstract: The present invention relates to an acrylic pressure-sensitive adhesive including: a) an acrylic polymer containing, as a monomer unit, an alkyl (meth)acrylate including an alkyl group having 1 to 20 carbon atoms in an amount of 50% by weight or more; and b) a tackifier resin, in which the acrylic polymer a) contains two kinds of monomer units having a difference in solubility parameter (SP value) of 0.2 (MPa)1/2 or more, each in an amount of 15% by weight or more.Type: ApplicationFiled: March 16, 2009Publication date: March 24, 2011Applicant: NITTO DENKO CORPORATIONInventors: Tetsuya Hirose, Shinji Inokuchi, Kazuhisa Maeda, Yusuke Sugino
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Patent number: 7893157Abstract: The present invention provides polymeric compositions having a high polymer size and a low Tg. These novel compositions are useful as plastic additives. Also provided is a method of improving the processing of a matrix resin by adding one or more of the novel polymeric compositions.Type: GrantFiled: May 5, 2003Date of Patent: February 22, 2011Assignee: Rohm and Haas CompanyInventors: Edward Joseph Troy, David John McDonald, Jane Elizabeth Weier
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Patent number: 7893162Abstract: Light-scattering compositions comprising diffuser polymer particles are disclosed. Also disclosed are methods of making and using the light-scattering compositions.Type: GrantFiled: January 15, 2008Date of Patent: February 22, 2011Assignee: Rohm and Haas CompanyInventors: Edward E. Lafleur, Jiun-Chen Wu
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Publication number: 20110023943Abstract: Provided herein is a blend composition useful as a cross-linkable encapsulant layer and consisting essentially of two ethylene copolymers and optionally one or more additives. The first ethylene copolymer comprises copolymerized units of ethylene, optionally a first olefin having the formula CH2?C(R1)CO2R2, and a second olefin having the formula CH2?C(R3)COOH. The second ethylene copolymer consists essentially of copolymerized units of ethylene, optionally a first olefin having the formula CH2?C(R1)CO2R2, and a third olefin having the formula CH2?C(R4)D. R1, R3 and R4 represent hydrogen or an alkyl group; R2 represents an alkyl group; and D represents a moiety containing an epoxy group. Further provided are solar cell modules comprising the encapsulant layer. The encapsulant layer comprises the blend composition or the product of cross-linking the blend composition, in which some acid groups of the second olefin have reacted with some epoxy groups of the third olefin.Type: ApplicationFiled: July 30, 2010Publication date: February 3, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: George Wyatt Prejean
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Publication number: 20100280182Abstract: The invention relates to a method for producing meth)acrylate-based ABA triblock copolymers in which the A blocks are amine-functionalized.Type: ApplicationFiled: April 12, 2007Publication date: November 4, 2010Applicant: Evonik Roehm GmbHInventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
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Publication number: 20100273945Abstract: The invention relates to a new polymer blend comprising: 20 to 70 wt % of a mixture (A) of two or more polyalkylene phthalates; 2 to 60 wt % of a cross-linked acrylate rubber; 0.5 to 20 wt % of an ionomer; and 1 to 30 wt % of a terpolymer of ethylene, butylacrylate (BA) and glycidylmethacrylate (GMA); wherein the weight percentages are based on the sum of the above ingredients. The polymer blend of the invention is particularly suitable for blow-moulding, to make parts for high-temperature, high-oil-exposure uses.Type: ApplicationFiled: July 7, 2009Publication date: October 28, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Serge Cavalli, Vincent Decombes, Philippe Leboeuf, Jean-Michel Philippoz, Michel C. Renaud
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Patent number: 7820762Abstract: Disclosed is a resin composition having excellent impact resistance and resistance to whitening by impact without deteriorating excellent transparency of a methacrylic resin. Specifically, an impact resistance modifier composed of a multilayered polymer having at least three layers, namely an innermost-layer polymer derived from an alkyl methacrylate, an intermediate-layer polymer derived from an alkyl acrylate and an outer-layer polymer having its Tg within the range of 20 to 80° C., wherein mass average particle diameter of the intermediate-layer polymer is 200 to 300 nm and the mass ratio of each layer is within an appropriate range, is blended with a methacrylic resin.Type: GrantFiled: March 28, 2005Date of Patent: October 26, 2010Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshio Nagasaka, Toshimi Yanai, Hiroki Hatakeyama
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Publication number: 20100187965Abstract: There is provided a resin which, in spite of having excellent impact resistance because of containing a rubber ingredient, can be molded into a haze-free and beautiful state across the entire surface of molded products even if the molded products are large-sized injection molded products, and is suitable for molded products on which a vapor deposition layer is formed by the direct vapor deposition method, and is suitable for molded products which are joined by the hot plate welding method, particularly molded products such as housing members of automotive lamps, which require weatherability. Also provided is a graft copolymer (B) obtained by polymerizing a (meth)acrylate monomer (b1) a homopolymer of which has a glass transition temperature exceeding 0° C. in the presence of a composite rubber (A) containing a polyorganosiloxane (A1) and a poly(meth)acrylate (A2), and then polymerizing an aromatic vinyl monomer (b2) and a cyanided vinyl monomer (b3).Type: ApplicationFiled: July 10, 2008Publication date: July 29, 2010Applicants: Mitsubishi Rayon Co., Ltd., Techno Polymer Co., Ltd.Inventors: Tsuneki Wakita, Toshihiro Kasai, Masaki Maeda, Yasunobu Kaneko