Polymer Derived From Methyl Acrylate Or Methyl Methacrylate Patents (Class 526/329.7)
  • Publication number: 20090020225
    Abstract: The use of a composition of low or no tack at 20° C. as an adhesive that can be adhered to itself (referred to below for short as an autoadhesive).
    Type: Application
    Filed: January 23, 2007
    Publication date: January 22, 2009
    Applicant: BASF SE
    Inventors: Dirk Wulff, Axel Weiss, Jose Maria Torres Llosa, Christofer Arisandy
  • Publication number: 20080318188
    Abstract: The present invention provides polymerizable dental compositions comprising a dimer acid-derived monomer such as a dimer acid-derived di(meth)acrylate monomer.
    Type: Application
    Filed: December 29, 2004
    Publication date: December 25, 2008
    Applicant: The Regents of the University of Colorado
    Inventors: Jeffrey W. Stansbury, Christopher N. Bowman, Marianela Trujillo
  • Publication number: 20080318072
    Abstract: To realize an imide resin which is favorable in optical use. The imide resin according to the present invention includes: a repeating unit represented by General Formula (1); a repeating unit represented by General Formula (2); and a repeating unit represented by General Formula (3), wherein an orientation birefringence of the imide resin ranges from ?0.1×10?3 to 0.
    Type: Application
    Filed: December 1, 2004
    Publication date: December 25, 2008
    Applicant: Kaneka Corporation
    Inventors: Hirosuke Kawabata, Tomoki Hiiro, Yasuhiro Sekiguchi, Kazuhito Wada, Kimihide Nishimura, Norito Doi
  • Publication number: 20080311415
    Abstract: The present invention concerns the use, in the surface treatment of waterproofed wood, of an aqueous dispersion comprising at least one latex obtained by emulsion polymerization of a mixture of monomers comprising at least one acrylic monomer B comprising at least one ureido function.
    Type: Application
    Filed: August 30, 2006
    Publication date: December 18, 2008
    Applicant: LAPEYRE
    Inventors: Jean-Christophe Castaing, William Bett, Jean-Noel Bousseau
  • Patent number: 7465498
    Abstract: Copolymers including structural units derived from ?-methylene-?-butyrolactone, styrene, methyl methacrylate and, optionally, acrylonitrile, may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 16, 2008
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: James Edward Pickett, Qing Ye
  • Publication number: 20080305350
    Abstract: A barrier laminate comprising at least one organic layer and at least one inorganic layer, in which the organic layer comprises a polymer having a structural unit of the following formula: wherein R1 and R2 represent a hydrogen atom or a methyl group; L represents an open-chain alkylene group having at least 8 carbon atoms and not containing an oxygen atom, a nitrogen atom and a sulfur atom.
    Type: Application
    Filed: February 11, 2008
    Publication date: December 11, 2008
    Inventor: Yuya AGATA
  • Publication number: 20080306233
    Abstract: A process for purifying a polymer containing residual volatile monomers by drying the polymer powder under vacuum at a pressure and at a temperature which allows the vaporization of the residual monomers and optionally de-aggregating by sieving.
    Type: Application
    Filed: December 18, 2006
    Publication date: December 11, 2008
    Applicant: Novartis AG
    Inventors: Gerhard Muhrer, Gesine Winzenburg
  • Publication number: 20080299503
    Abstract: The formation of high-resolution resist patterns by liquid immersion lithography with various fluids is enabled by protecting a resist film from deterioration (such as bridging) during the immersion exposure in a fluid (such as water) and the fluid from deterioration and improving the stability of a resist film in the storage after exposure without increase in the number of treatment steps. A material for forming resist protection films which comprises an alkali-soluble polymer for forming a protective overcoat for a resist film, characterized in that the contact angle of the polymer to water is 90° or above. The polymer is preferably an acrylic polymer which comprises as the essential components constituent units derived from (meth) acrylic acid and constituent units derived from a specific acrylic ester.
    Type: Application
    Filed: December 22, 2005
    Publication date: December 4, 2008
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Keita Ishiduka, Kotaro Endo
  • Patent number: 7459513
    Abstract: A description is given of (meth)acrylic acid copolymers containing methacrylic acid units, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for preparation thereof and use thereof for water treatment, scale inhibition in petroleum production and corrosion inhibition in aqueous systems.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: December 2, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Marcus Guzmann, Karl-Heinz Buechner, Pia Baum, Gregor Brodt
  • Patent number: 7452868
    Abstract: A formulation of octreotide or pharmaceutically acceptable salts thereof, which provides controlled release of a therapeutically effective amount of octreotide for a period of at least about two months. Methods of treating acromegaly, decreasing growth hormone, decreasing IGF-1, and treating conditions associated with carcinoid tumors and VIPomas by administering a controlled release formulation of octreotide are provided herein.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: November 18, 2008
    Assignee: Indevus Pharmaceuticals, Inc.
    Inventors: Petr Kuzma, Stephanie Decker
  • Publication number: 20080269449
    Abstract: The present invention provides methods for purifying polymers. In each embodiment of the invention disclosed herein, a supercritical fluid is contacted with an organic solution that includes a polymer to be purified dissolved in an organic solvent. The supercritical fluid extracts the organic solvent from the organic solution. Impurities such as residual monomers and process solvents are removed with the organic solvent and supercritical fluid, thereby purifying the polymer. The methods of the invention are particularly suitable for use in the purification of biodegradable polymers for use in pharmaceutical applications.
    Type: Application
    Filed: January 22, 2008
    Publication date: October 30, 2008
    Applicant: FERRO PFANSTIEHL LABORATORIES, INC.
    Inventors: Pratibhash Chattopadhyay, Boris Y. Shekunov, K. Adam Gibson
  • Publication number: 20080257493
    Abstract: The invention is based on the discovery that certain well-defined compounds derived from pentacyclopentadecane dimethanol are useful components in adhesive formulations. In particular, the invention compounds described herein provide high Tg values and low shrinkage. Compounds of the invention are useful as adhesives for use in the semiconductor packaging industry.
    Type: Application
    Filed: April 9, 2008
    Publication date: October 23, 2008
    Inventor: Stephen M. Dershem
  • Patent number: 7438978
    Abstract: A touch panel having excellent durability, in which depression is scarcely generated on the surface of the touch panel by pushing the surface with a pen, and a transparent conductive film and plate useful in the touch panel are provided. The transparent conductive film comprises a first polymer film having a transparent conductive thin layer thereon and a second polymer film having a hardcoat layer thereon, the first and second polymer films being bonded each other through an adhesive layer such that a surface having no transparent conductive thin layer of the first polymer film faces a surface having no hardcoat layer of the second polymer film, wherein work of the adhesive layer in elastic deformation is not less than 60%. The transparent conductive plate is provided with the adhesive layer, the touch panel is provided with the transparent conductive film or plate as an upper or lower electrode.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: October 21, 2008
    Assignee: Bridgestone Corporation
    Inventors: Hidefumi Kotsubo, Masato Yoshikawa, Yasuhiro Morimura, Kiyomi Sasaki
  • Patent number: 7439314
    Abstract: Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and ?-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: October 21, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Linda Kaye Johnson, Stephan J. McClain
  • Publication number: 20080255531
    Abstract: The invention relates to a superabsorbent powder consisting of polymer particles which have a core swelling in the presence of water and a superficially postcured shell, in which the powder is a screening fraction of such polymer particles which have not been crushed after the superficial postcure of their shell. This superabsorbent powder is especially suitable for the finishing of textile webs made of super-fine fibers or filaments with a diameter of less than 10 ?m, in particular for the finishing of sanitary products.
    Type: Application
    Filed: December 23, 2005
    Publication date: October 16, 2008
    Inventors: Horst Ring, Roland Harbig
  • Publication number: 20080224159
    Abstract: The invention relates to an optical element (1, 25) having a defined shape and comprising a thermoplastic material that has been further cross-linked during or following the shaping thereof. Such thermoplastic materials have an increased heat deflection temperature, distortion, but can be easily and economically shaped before the additional cross-linking as a result of the thermoplastic properties thereof.
    Type: Application
    Filed: April 18, 2006
    Publication date: September 18, 2008
    Inventors: Gertrud Krauter, Andreas Plossl
  • Publication number: 20080220198
    Abstract: A method for producing a laminate having a structure of an organic layer and an inorganic layer laminated thereon, which comprises polymerizing a mixture that contains a monomer of the following formula (1) wherein m is 2 and a monomer of the following formula (1) wherein m is 3 or more, thereby forming the organic layer: wherein R1 represents a hydrogen atom or a methyl group; and L represents an m-valent linking group.
    Type: Application
    Filed: February 19, 2008
    Publication date: September 11, 2008
    Inventors: Jiro Tsukahara, Yuya Agata
  • Publication number: 20080214766
    Abstract: Aqueous polyacrylate dispersions comprising hydrophobic co-solvents are provided. The dispersions are prepared from copolymers P) which are comprised of I) a hydroxy-functional, hydrophobic polymer containing as structural monomers Ia) (meth)acrylic acid esters having from C1- to C18-hydrocarbon radicals in the alcohol part and/or vinyl aromatic compounds and/or vinyl esters and Ib) hydroxy-functional monomers; and II) a hydroxy-functional, hydrophilic polymer containing as structural components IIa) (meth)acrylic acid esters having from C1- to C18-hydrocarbon radicals in the alcohol part and/or vinyl aromatic compounds and/or vinyl esters, IIb) hydroxy-functional monomers and IIc) acid-functional monomers, and as solvents C) one or more solvents selected from the group consisting of hydrophobic, water-immiscible hydrocarbons having an initial boiling point of from 170° C. to 250° C. and a dry point of from 200° C. to 280° C.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 4, 2008
    Inventors: Thomas Munzmay, Sandra Hackbarth, Martin Melchiors, Heinz-Dietmar Gewiss
  • Patent number: 7405263
    Abstract: A description is given of (meth)acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for the preparation thereof and the use thereof for watertreatment, scale inhibition in mineral oil extraction and corrosion inhibition in aqueous systems.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: July 29, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Erich Lutz, Marcus Guzmann, Karl-Heinz Buechner, Gregor Brodt
  • Publication number: 20080154008
    Abstract: One aspect of the invention relates to a methacrylate resin prepared by suspension polymerization using a polyalkylacrylate-acrylic acid as a suspension stabilizer. The suspension stabilizer is used in an amount of about 0.05 to about 0.25 parts by weight per 100 parts by weight of a monomer mixture. Another aspect of the invention relates to a method for preparing a methacrylate resin, which comprises: preparing a mixture by mixing an initiator and a chain-transfer agent with a monomer mixture comprising at least about 50% by weight of alkyl methacrylate; and adding the mixture to an aqueous solution of polyalkylacrylate-acrylic acid to conduct suspension polymerization.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jae Hoon JEONG, Doo Han HA, Jung Ho JANG
  • Patent number: 7385019
    Abstract: Water-based fluids that can viscosify under shear or can produce a gel or form a gel under shear are obtained by dissolving polymers in an aqueous phase. These polymers comprise three types of functional groups: non-ionic functional groups that are hydrosoluble at the temperature under consideration, ionic functional groups, and functional groups that are hydrophobic at the temperature under consideration. These three types of functional groups can be distributed or spread in a random distribution along the polymer chain. A slightly block distribution is acceptable. For applications to oil wells, functional groups are used which exhibit LCST (Lower Critical Solution Temperature) behavior (i.e., a low critical solution temperature) instead of hydrophobic functional groups. At temperatures below the LCST, the functional groups are hydrophobic.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: June 10, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Pierre Maroy, Arnaud Cadix, Dominique Hourdet, Ilias Iliopoulos, Françoise Lafuma
  • Patent number: 7378216
    Abstract: A resist material has a base polymer containing a compound including a copolymer of a first unit represented by a general formula of the following Chemical Formula 1 and a second unit represented by a general formula of the following Chemical Formula 2: wherein R1, R2, R3, R7, and R8 are the same or different and are a hydrogen atom, a fluorine atom, or a straight-chain alkyl group, a branched or cyclic alkyl group or a fluoridated alkyl group with a carbon number not less than 1 and not more than 20; R4 is a straight-chain alkylene group or a branched or cyclic alkylene group with a carbon number not less than 0 and not more than 20; R5 and R6 are the same or different and are a hydrogen atom, a straight-chain alkyl group, a branched or cyclic alkyl group or a fluoridated alkyl group with a carbon number not less than 1 and not more than 20, or a protecting group released by an acid; and R9 is a fluorine atom, or a straight-chain alkyl group, a branched or cyclic alkyl group or a fluoridated alkyl group
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: May 27, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinji Kishimura, Masayuki Endo, Masaru Sasago, Mitsuru Ueda, Hirokazu Imori, Toshiaki Fukuhara
  • Publication number: 20080085381
    Abstract: An optical element with a polarizer and a support layer is disclosed herein. The polarizer comprises an intrinsic polarizer and the support layer comprises the reaction product of: (a) from 50 to 99 parts by weight of a (meth)acryloyl oligomer having a plurality of pendant, free radically polymerizable functional groups and a Tg of greater than or equal to 20° C., (b) from 1 to 50 parts by weight of a free-radically polymerizable crosslinking agent and/or diluent monomer, and (c) from 0.001 to 5 parts by weight of an initiator. A method of forming the optical element is also disclosed herein. The optical element may be used in optical devices such as projector systems.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 10, 2008
    Inventors: Gunnar H. Gunnarsson, David M. Snively, Xuequn Hu, Ying-Yuh Lu, Kevin M. Lewandowski, Joseph D. Rule, Pradnya V. Nagarkar
  • Patent number: 7344768
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: March 18, 2008
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Patent number: 7341784
    Abstract: A light management film includes a first layer with a thermoplastic resin and a particular phosphonium sulfonate salt, and a second layer formed from a curable composition and having a refractive index of at least 1.5. The light management film exhibits reduced static electricity build-up and reduced dust attraction, making it easier to handle during fabrication of display devices such as the flat panel displays of laptop computers.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: March 11, 2008
    Assignee: General Electric Company
    Inventors: Chunghei Yeung, Yu Hu, Kevin Patrick Capaldo, Anne Elizabeth Herrmann, Yan Zhang, Bret Chisholm, Paul Smigelski, Dennis Joseph Coyle
  • Patent number: 7341771
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: March 11, 2008
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Patent number: 7335703
    Abstract: A novel polyolefin graft copolymer prepared by graft-copolymerizing an olefin monomer with a (meth)acryl macromonomer or an isobutylene macromonomer in the presence of a coordination polymerization catalyst based on a late transition metal complex and a method for making the novel polyolefin graft copolymer are provided.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: February 26, 2008
    Assignee: Kaneka Corporation
    Inventor: Yoshifumi Fukui
  • Patent number: 7326762
    Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 5, 2008
    Assignees: Orient Chemical Industries, Ltd., Osaka Municipal Government
    Inventors: Motoomi Arakawa, Kazuaki Sukata, Masayuki Shimada, Shigehiro Sasao
  • Patent number: 7323527
    Abstract: A method for producing a macroporous acrylic resin in an aqueous suspension from a C1-C4 alkyl acrylate, an organic solvent and a crosslinker.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: January 29, 2008
    Assignee: Rohm and Haas Company
    Inventors: James Charles Bohling, Roy Jeffrey Furbank, Bruce Maurice Rosenbaum
  • Publication number: 20080017308
    Abstract: The invention provides derivatives of poly(styrene-co-allylalcohol). These materials are useful as thermosetting monomers that can be incorporated into adhesive compositions. In some embodiments, the adhesive compositions are useful in the microelectronic packaging industry.
    Type: Application
    Filed: July 24, 2007
    Publication date: January 24, 2008
    Inventor: Stephen M. Dershem
  • Patent number: 7317062
    Abstract: The invention relates to copolymers, suitable as wetting agents and dispersants, obtainable by copolymerizing (a) 1 to 80 mol % of at least one ethylenically unsaturated 1,2-dicarboxylic acid derivative, (b) 2 to 80 mol % of at least one unsaturated monocarboxylic acid derivative having 12 to 30 carbon atoms, (c) 1 to 90 mol % of at least one polyalkyleneoxyallyl ether having a number-average molecular weight of up to 5000 g/mol and (d) 0 to 30 mol % of further, unsaturated monomers; and also reaction products of the copolymers with ammonia, amines, water, alcohols, amino alcohols and/or alkali metal hydroxides or alkaline earth metal hydroxides. The invention further relates to a process for preparing the copolymers and to their use as wetting agents and dispersants in coating materials and moulding compounds.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: January 8, 2008
    Assignee: BYK-Chemie GmbH
    Inventors: Wolfgang Pritschins, Karlheinz Haubennestel, Werner Tiegs
  • Publication number: 20070287760
    Abstract: A method for producing a macroporous acrylic resin in an aqueous suspension from a C1-C4 alkyl acrylate, an organic solvent and a crosslinker.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Inventors: James Charles Bohling, Roy Jeffrey Furbank, Bruce Maurice Rosenbaum
  • Patent number: 7304114
    Abstract: Liquid rubbers that are ordinarily immiscible in liquid thermoset resins can be made miscible by the addition of at least one non-functional aromatic end-group to the polymer chains of such liquid rubber compositions. Such addition may be initiated by high-temperature peroxides in non-functional aromatic solvents. The liquid rubbers are found to improve the fracture toughness of cured thermoset resins while maintaining dimensional and heat resistance.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: December 4, 2007
    Assignee: Rohm and Haas Company
    Inventor: Edward Ewart LaFleur
  • Patent number: 7288613
    Abstract: The present invention relates to selected 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) said piperidine derivatives. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-2,2,6,6 tetramethyl piperidine, 1-alkoxy-2,2 diethyl-6,6 dimethyl piperidine and 1-alkoxy-2,6 diethyl-2,3,6 dimethyl piperidine derivatives which are substituted in the 4 position by two oxygen atoms forming an open chain or cyclic ketal structure for controlled polymerization.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: October 30, 2007
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Peter Nesvadba, Marie-Odile Zink, Wiebke Wunderlich
  • Patent number: 7285615
    Abstract: An object of the present invention is to provide a particulate water-absorbent resin composition which is so excellent that: the absorption ability in an initial short time is secured in some degree, and further, the absorption capacity lastingly increases over a long period, and also the liquid permeability and the liquid diffusibility can be secured. As a means of achieving this object, a particulate water-absorbent resin composition according to the present invention is a particulate water-absorbent resin composition comprising a carboxyl-group-containing water-absorbent resin in an amount of not smaller than 80 mass %, with the composition being characterized by being: not less than 20 g/g in specific-particle-diameter absorption capacity under load (0.29 psi (2.00 kPa), 1 hour); and not less than 3 g/g in specific-particle-diameter absorption index increment in 20 hours.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 23, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yoshifumi Adachi, Toshimasa Kitayama, Yorimichi Dairoku
  • Patent number: 7264866
    Abstract: The object of the present invention is to provide a laminated film excellent in light resistance, scratch resistance, transparency, dimensional stability and adhesion to a hard coating layer. The present invention is a laminated film comprising a base material layer, an easily adhering layer and a hard coating layer, wherein the easily adhering layer is formed on the base material layer and the hard coating layer is formed on the easily adhering layer, and further wherein (1) the base material layer is formed of a polyester resin formed from naphthalenedicarboxylic acid as a main dicarboxylic acid component and ethylene glycol as a main glycol component, (2) the hard coating layer has an ultraviolet absorbing function and has a pencil hardness of H or higher on the hard coating layer surface, and (3) said laminated film has a variation (?b*) of less than 2.0 between transmittance b* values obtained before and after a 300 hours' xenon arc test of said laminated film.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 4, 2007
    Assignee: Teijin Dupont Films Japan Limited
    Inventors: Katsuyuki Hashimoto, Makoto Handa
  • Patent number: 7244796
    Abstract: Branched polymers are prepared by mixing together monofunctional vinylic monomer with from 0.3 to 100% w/w of polyfunctional vinylic monomer and from 0.0001 to 50% w/w of chain transfer agent and thereafter reacting the mixture to form a polymer. The resulting branched polymers are soluble and may be used as component of surface coatings and inks as well as molding resins.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: July 17, 2007
    Assignee: Lucite International UK Limited
    Inventors: Michael S. Chisholm, Andrew T. Slark, David Sherrington, Nial O'Brien
  • Patent number: 7238761
    Abstract: Multifunctional biocompatible hydrophilic gel contains, in % (w/w), acrylamide—1.95-8.0, methacrylamide—0.54-3.0, 2-hydroxyethyl methacrylate—0.003-0.4, N,N?-methylene-bis-acrylamide—0.006-0.6 and water—q.s. to 100. The hydrophilic gel is produced by co-polymerization of the above mentioned monomers in water medium in the presence of a peroxide initiator of polymerization in three stages which include (1) incubation of the reaction mixture at 20-30° C. for 12-24 hours, (2) exposure to ?-radiation at a dose of 0.4-1.0×106 rads, and (3) incubation at a temperature of 100-130° C. and pressure of 0-1.2 atm. for 20-40 minutes.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 3, 2007
    Assignee: Obschestvos Organichennoy Otvetstvennostyu “Vitagel”
    Inventor: Vladislav Victorovich Lopatin
  • Patent number: 7217377
    Abstract: An optical waveguide based on a photochromic diarylethene polymer dispersed in a polymeric matrix, and a method for preparing such waveguide is disclosed.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: May 15, 2007
    Assignee: Pirelli & C. S.p.A.
    Inventors: Marco Colombo, Antonio Zaopo, Yuri A. Dubitsky, Giuseppe Zerbi, Chiara Bertarelli, Maria Carla Gallazzi
  • Patent number: 7189303
    Abstract: Initiator systems of the present invention include both a complexed initiator and a carboxylic acid decomplexer. For example, dicarboxylic acid decomplexer, carboxylic acid ester decomplexers, and monocarboxylic acid decomplexers (preferably those comprising an alkyl group having at least nine carbon atoms for low odor compositions) are useful in the present invention.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: March 13, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Edward J. Deviny, Dean M. Moren
  • Patent number: 7183368
    Abstract: Disclosed is a chemical-amplification negative-working photoresist composition used for photolithographic patterning in the manufacture of semiconductor devices suitable for patterning light-exposure to ArF excimer laser beams and capable of giving a high-resolution patterned resist layer free from swelling and having an orthogonal cross sectional profile by alkali-development. The characteristic ingredient of the composition is the resinous compound which has two types of functional groups, e.g., hydroxyalkyl groups and carboxyl or carboxylate ester groups, capable of reacting each with the other to form intramolecular and/or intermolecular ester linkages in the presence of an acid released from the radiation-sensitive acid generating agent to cause insolubilization of the resinous ingredient in an aqueous alkaline developer solution.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: February 27, 2007
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hideo Hada, Takeshi Iwai, Satoshi Fujimura
  • Patent number: 7166661
    Abstract: An organic-inorganic composite material is formed by polycondensating a metal alkoxide through hydrolysis until the unreacted metal alkoxide is reduced to 3 vol. % or less, and mixing it with an organic polymer. The composite material has a light transmittance of at least 90% per 10 ?m material thickness for light of 600 to 1000 nm. The metal element content of the composite material is preferably 0.1 to 46 wt. %, more preferably 5 to 37 wt. %. By laminating layers of such organic-inorganic composite materials having respective different compositions, the resulting laminate has a concentration gradient wherein the metal element content increases or decreases monotonously, or increases and decreases in succession, from one side to the other side of the laminate. The resulting refractive index varies opposite the metal element content. The material can be used for an optical waveguide or a light transmission structure.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: January 23, 2007
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Keiichi Kuramoto, Hiroaki Izu, Koji Yamano, Hitoshi Hirano
  • Patent number: 7160965
    Abstract: A catalyst system useful to polymerize and co-polymerize polar and non-polar olefin monomers is formed by in situ reduction with a reducing agent of a catalyst precursor comprising {Cp*MRR?n}+{A}? wherein Cp* is a cyclopentadienyl or substituted cyclopentadienyl moiety; M is an early transition metal; R is a C1–C20 hydrocarbyl; R? are independently selected from hydride, C1–C20 hydrocarbyl, SiR?3, NR?2, OR?, SR?, GeR?3, SnR?3, and C?C-containing groups (R?=C1–C10 hydrocarbyl); n is an integer selected to balance the oxidation state of M; and A is a suitable non-coordinating anionic cocatalyst or precursor. This catalyst system may form stereoregular olefin polymers including syndiotactic polymers of styrene and methylmethacrylate and isotactic copolymers of polar and nonpolar olefin monomers such as methylmethacrylate and styrene.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: January 9, 2007
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Lubin Luo, Sung Cheol Yoon
  • Patent number: 7160970
    Abstract: The present invention is directed to methods for preparing multi-functional emulsion polymers.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: January 9, 2007
    Assignee: Rohm and Haas Company
    Inventors: Marianne Patricia Creamer, Lester William Greene, Jr., Ari Kenneth Kar, Miao Wang
  • Patent number: 7157542
    Abstract: Disclosed is a copolymer comprising a polyethylene segment which is a main chain; a reactive silicon-containing group which is a side group of the polyethylene segment; and a polycondensation segment bonded to the polyethylene segment, which is a part of the main chain together with the polyethylene segment or a side chain with respect to the polyethylene segment. There are provided a condensation polymer having many reactive silicon-containing groups with respect to one molecule and an organic-inorganic hybrid polymeric material having superior properties such as strength, heat resistance, weather resistance and chemical resistance by using the polymer.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: January 2, 2007
    Assignees: Orient Chemical Industries, Ltd., Osaka Municipal Government
    Inventors: Motoomi Arakawa, Kazuaki Sukata, Masayuki Shimada, Shigehiro Sasao
  • Patent number: 7157537
    Abstract: The invention relates to ?-halocarboxylic acid esters of polyhydric, at least trihydric, alcohols, which can be used as initiators for ATRP. Using those initiators it is possible to prepare block copolymers having branched structures.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 2, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Andreas Mühlebach, François Rime
  • Patent number: 7153581
    Abstract: The invention provides organic silicone copolymers based on a) from 30 to 99% by weight of a vinylaromatic, (meth)acrylic ester, vinyl ester, olefin, diene, and/or vinyl halide monomer, and b) from 1 to 70% by weight of a mixture of at least two diorganopolysiloxanes having the general formula R1aR3-aSiO(SiR2O)nSiR3-aR1a, in which each R denotes a monovalent, optionally substituted, C1-18 alkyl or C1-18 alkoxy radical, R1 denotes a polymerizable group, a is 0 or 1, at least one a being 1, and n is an integer, where b1) from 5 to 65% by weight of the silicone component b) is a diorganopolysiloxane with n?30 and only one terminal polymerizable group R1, and b2) from 35 to 95% by weight of the silicone component b) is a diorganopolysiloxane with n?55 and with one or two terminal polymerizable groups R1.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: December 26, 2006
    Assignee: Wacker Polymer Systems GmbH & Co. KG
    Inventor: Kurt Stark
  • Patent number: 7144931
    Abstract: A method of manufacturing polymer particles capable of increasing the easiness of handling of powder when the powder is collected and preventing the powder from adhering to the wall surface of a dryer and the outlet of the dryer from being clogged with the powder by suppressing the occurrence of ruptured particles to reduce the produced amount of the fine powder when polymer particles are produced by spraying and drying polymer latex, characterized in that, when the polymer latex having a minimum film forming temperature of 50° C. or higher is sprayed and dried with heating gas for drying in the dryer, the temperature of the heating gas for drying at the dryer outlet is less than the temperature obtained by adding 15° C. to the minimum film forming temperature of the polymer latex, the wet-bulb temperature thereof at the dryer outlet is higher than the temperature obtained by deducing 30° C.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: December 5, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masaki Omote, Akihiro Toritani, Daisuke Shiramizu, Hiroyuki Iyota
  • Patent number: 7132460
    Abstract: The present invention relates to an active energy ray curable composition for coating optical disc, comprising a urethane (meth)acrylate compound having at least one amide group in the molecule, an ethylenically unsaturated compound other than the urethane (meth)acrylate compound and a photopolymerization initiator; and an optical disc having a cured coating layer obtained by curing the composition.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: November 7, 2006
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Juichi Fujimoto, Kouji Hayama, Seiji Nushi, Hiroshi Fukushima
  • Patent number: 7125938
    Abstract: A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventional free radical polymerization, metathesis, ring opening polymerization, cationic ring opening polymerization, and coordination polymerization to form a macroinitiator comprising an ATRP initiating site and further initiating an ATRP polymerization of radically polymerizable monomers using the macroinitiator comprising an ATRP initiating site. Novel block copolymers may be formed by the disclosed method.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: October 24, 2006
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Scott G. Gaynor, Simion Coca