Polymer Derived From Acrylic Or Methacrylic Esters, Or Vinyl Acetate Monomer Patents (Class 525/330.3)
  • Publication number: 20100092871
    Abstract: Binder for an electrode of an electrochemical system having a non-aqueous electrolyte, said binder comprising a first polymer which has functional groups capable of reacting with a crosslinking agent and is crosslinked with said crosslinking agent, the crosslinked first polymer forming a three-dimensional network in which a second polymer chosen from fluoropolymers is imprisoned.
    Type: Application
    Filed: February 8, 2008
    Publication date: April 15, 2010
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, INSTITUT NATIONAL POLYTECHNIQUE DE GRENOBLE
    Inventors: Franck Medlege, Helene Rouault, Naceur Belgacem, Anne Blayo
  • Publication number: 20100093931
    Abstract: Proposed is a process for the continuous hydrogenation of carbon-carbon double bonds in an unsaturated polymer to produce a hydrogenated polymer, said unsaturated polymer being based on a conjugated diolefin and at least one other copolymerizable monomer, in the presence of a homogeneous or heterogeneous catalyst, wherein said unsaturated polymer, hydrogen and said homogeneous or heterogeneous catalyst is passed through a multistage agitated reactor, comprising a cylindrical, elongated shell having closed ends and separated by baffles into a multiplicity of discrete chambers with access from one chamber to another through concentric circular openings, axially centered with said baffles and a continuous rotatable shaft extending concentric with said baffles within said shell with at least one impeller attached thereto positioned in each chamber, said continuous rotatable shaft and said circular openings providing annular openings and said hydrogenated polymer being withdrawn at the opposite end of the multista
    Type: Application
    Filed: July 21, 2009
    Publication date: April 15, 2010
    Applicant: LANXESS INC.
    Inventors: GARRY REMPEL, QINMIN PAN, LIFENG ZHANG
  • Patent number: 7696138
    Abstract: A novel reaction product and method for making the reaction product. The reaction product is a copolymer obtained by reacting together i) an acylated alkylacrylate copolymer having a number average molecular weight ranging from about 5,000 to about 500,000; ii) a hydrocarbyl acylating agent having a number average molecular weight ranging from about 500 to about 5000; and iii) a compound selected from the group consisting of (a) a polyamine; (b) a polyol; and (c) an aminoalcohol to provide a functionalized polyalkylacrylate copolymer. According to the reaction, a mole ratio of component (i) to (ii) ranges from about 1:10 to about 5:1.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: April 13, 2010
    Assignee: Afton Chemical Corporation
    Inventors: Naresh C. Mathur, John T. Loper, Akhilesh Duggal
  • Publication number: 20100072421
    Abstract: A particulate water-absorbent agent containing a polyacrylate salt-type water-absorbent resin. The agent has an absorption capacity without load of 28 g/g or higher and has a diffusion absorption index of 1.40 to 10.0 g/g min. The amount of water-soluble components in the agent, with stirring, is 15-60% by mass. The difference between this amount and the amount of water-soluble components, without stirring, is 15-50% by mass. Also disclosed is a method of making the above-identified agent.
    Type: Application
    Filed: February 28, 2008
    Publication date: March 25, 2010
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Takahiro Kitano, Takaaki Kawano, Katsuyuki Wada
  • Publication number: 20100043969
    Abstract: Pressure-sensitive adhesive tape made of a flat, support material each side of which is coated with a pressure-sensitive adhesive, the pressure-sensitive adhesive on at least one side being produced from a monomer mixture comprising a monomer of the formula CH2?CH(R1)(COOR2), where R1=H or CH3 and R2 is an alkyl radical having 1 to 10 carbon atoms or H and the homopolymer possesses a static glass transition temperature of <?30° C.
    Type: Application
    Filed: October 2, 2009
    Publication date: February 25, 2010
    Applicant: TESA SE
    Inventors: Marc Husemann, Torsten Runge, Stephan Zollner
  • Patent number: 7652112
    Abstract: A polymer extender composition comprising monomers copolymerized in the following percentages by weight: (a) from about 5% to about 90% of a monomer of the formula I: R1—OC(O)—C(R)?CH2??(I) (b) from about 5% to about 85% of vinylidene chloride, vinyl chloride, vinyl acetate, or a mixture thereof, (c) from about 0.5% to about 3% of a monomer of the formula II: HO—CH2—NH—C(O)—C(R)?CH2??(II) (d) from about 0.5% to about 3% of a monomer of the formula III HO—CH2CH2—OC(O)—C(R)?CH2??(III) and (e) from about 1% to about 5% of a monomer of the formula IV: H—(OCH2CH2)m—O—C(O)—C(R)?CH2??(IV) (f) from 0% to about 25% of methyl methacrylate, vinylbenzyl chloride, styrene or a mixture thereof, wherein each R is independently H or CH3; R1 is a linear or branched or cyclic alkyl chain having from about 4 to about 18 carbon atoms, and m is 2 to about 10.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: January 26, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Ying Wang, John J. Fitzgerald
  • Patent number: 7649054
    Abstract: A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an ethylenically unsaturated monomer having a reactive ring-opened azlactone functional group. A telechelic polymer that is the reaction product of these components is also described.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: January 19, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Duane D. Fansler, Babu N. Gaddam
  • Publication number: 20100010166
    Abstract: Silane-terminated prepolymers which contain, on at least one silicon atom, at least one hydrolyzable aryloxy type functional group. The use of these prepolymers, containing silyl-aryloxy terminated groups, in adhesive sealant formulations increases their reactivity so enabling the use of metal-based catalysts, which are in most cases toxic and act as oxidation catalysts, to be avoided or their quantity to be reduced compared with the standard quantity used in conventional formulations, yet ensuring considerably shorter cross-linking times than those of formulations based on known silane-terminated prepolymers.
    Type: Application
    Filed: September 14, 2007
    Publication date: January 14, 2010
    Applicant: N.P.T. S.R.L.
    Inventors: Alessandro Galbiati, Paolo Galbiati
  • Publication number: 20100004152
    Abstract: Synthetic microgel polymer compositions are useful for treating and/or modifying hard surfaces, in particular by promoting the hydrophilization thereof, notably in cleaning or rinsing operations.
    Type: Application
    Filed: December 12, 2006
    Publication date: January 7, 2010
    Applicant: RHODIA OPERATIONS
    Inventors: Katerina Karagianni, Claire Pitois
  • Patent number: 7642321
    Abstract: A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an ethylenically unsaturated monomer having a reactive ring-opened azlactone functional group. A telechelic polymer that is the reaction product of these components is also described.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: January 5, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Duane D. Fansler, Kevin M. Lewandowski, Babu N Gaddam
  • Publication number: 20090318622
    Abstract: The invention concerns methods for grafting bioactive polymers on a prosthetic material, the materials obtainable by said method and applications thereof. More specifically, the invention concerns a method for directly grafting polymers on the surface of prosthetic materials.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 24, 2009
    Inventors: Véronique Migonney, Gérard Helary, Flavie Noirclere
  • Patent number: 7632892
    Abstract: Provided are an acrylic copolymer composition, a method for preparing an acrylic copolymer, and a vinyl chloride resin composition including the acrylic copolymer. The acrylic copolymer composition includes 5-15 wt % of a crosslinking agent and an alkyl acrylate monomer constituting an alkyl acrylate crosslinked polymer and 85-95 wt % of methyl methacrylate and at least one monomer selected from the group consisting of alkyl acrylate and alkyl methacrylate. Addition of the acrylic copolymer to the vinyl chloride resin composition enhances the foaming property of the vinyl chloride resin. Combination of the acrylic copolymer with an impact modifier further enhances the impact strength of the vinyl chloride resin.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: December 15, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Hun Lee, Jung-sup Han, Hyung-Jun Son
  • Patent number: 7629419
    Abstract: It is an object of the invention to provide a method for producing a modified polymer compound and a production apparatus of a modified polymer capable of producing a modified polymer compound with a high purity in a short time, and such a modified polymer compound. The invention provides a method for producing a modified polymer compound, which comprises chemically modifying a polymer compound in a supercritical fluid or a high temperature and high pressure fluid, said modified polymer compound being composed of monomer units obtainable by chemically modifying part of or all of monomer units composed of the polymer compound before modification reaction.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: December 8, 2009
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Katsunori Toyoshima, Toshio Tada, Yohei Nishimura
  • Patent number: 7625989
    Abstract: Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer having a homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strength additive are provided.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: December 1, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Robert Lee Barcus, Khosrow Parviz Mohammadi
  • Patent number: 7625445
    Abstract: An aggregate for making a molded article and a method of making the aggregate is disclosed. The aggregate consists of an acrylate based resin matrix and anti abrasive particles chiefly quartz particles having a size of between 0.1 mm and 1.2 mm, at least 30 percent of the anti abrasive particles being broken particles having irregular shape with sharp edges silanized and non-silanized. The aggregate includes fine powders, cross linking agent and Peroxides. The molded article made from the aggregate has anti-abrasive properties and “look and feel” of natural material.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: December 1, 2009
    Inventors: Chirag Parekh, Ashwin Parekh
  • Patent number: 7622531
    Abstract: The present invention relates to a powder paint composition comprising at least (a) a thermosetting polymer having functional groups capable of reacting with ?-hydroxyalkylamide units (b) a compound comprising ?-hydroxyalkylamide units and (c) a deceleration agent, capable of reversibly blocking the functional groups of polymer (a). The deceleration agent is present in an amount sufficient to block at least 9% of the total amount of functional groups of polymer (a). The present invention relates also to the use of a specific amine compound as a deceleration agent in a powder paint composition.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: November 24, 2009
    Assignee: DSM IP Assets B.V.
    Inventors: Antonia Urmanova, Eimbert Gerrit Belder, Jurjen Bolks, Coenraad Maarten Gehrels
  • Patent number: 7622533
    Abstract: Synthesis methods for creating polymeric compounds comprising dihydroxyphenyl derivatives (DHPD), or DHPp i.e. polymers modified with DHPD, with desired surface active effects are described. The polymer backbone of DHPp has structural or performance features that can be tailored to control physical properties of DHPp, allowing it to be useful for different applications i.e. tissue adhesives or sealants, adhesion promoting coatings, and antifouling coatings.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: November 24, 2009
    Assignee: Nerites Corporation
    Inventor: Bruce P. Lee
  • Publication number: 20090280318
    Abstract: Provided is a new adhesive polyolefin resin composition, containing 1 to 100% by weight of a high polymer structure, that has good heat resistance and excellent adhesion performance to polyolefins and various polar materials, wherein a polyolefin segment (A) is bonded with an addition polymer segment (B) of a non-olefinic vinyl monomer and a reactive group is introduced into the addition polymer segment (B) and an adhesive or dispersion obtained therefrom.
    Type: Application
    Filed: December 8, 2006
    Publication date: November 12, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tomoaki Matsugi, Junji Saito, Hideyuki Kaneko, Norio Kashiwa, Shin-ichi Kojoh, Takayuki Onogi, Motoaki Isokawa, Seiji Ota, Shigeyuki Yasui
  • Patent number: 7608663
    Abstract: The invention provides methods for preparing polymers bearing a terminal propionic acid. The method involves first reacting a water soluble and non-peptidic polymer comprising at least one hydroxyl group with a tertiary alkyl acrylate in the presence of a catalyst to form a propionic acid ester of the polymer, wherein the polymer has a weight average molecular weight of at least about 10,000 Da; and then treating the propionic acid ester of the polymer with a strong acid to form a propionic acid of the polymer.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: October 27, 2009
    Assignee: Nektar Therapeutics
    Inventors: Antoni Kozlowski, Samuel P. McManus
  • Patent number: 7601675
    Abstract: A clayish subterranean formation, such as may be encountered in rock surrounding a well bore during hydrocarbon recovery operations may be stabilized with a polyamine salt of an imide of polymaleic anhydride. The salt may be unneutralized or partially neutralized. The invention is particularly relevant to hydraulic fracturing fluids used in enhanced oil recovery. The compositions of this invention are more environmentally friendly than some current technology.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: October 13, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: David J. Poelker, JoAnn McMahon, John A. Schield
  • Patent number: 7598331
    Abstract: Processes for making temporary wet strength additives, more particularly, processes for oxidizing a homo-crosslinking monomeric unit present in a polymer comprising the homo-crosslinking monomeric unit and a cationic monomeric unit to produce a temporary wet strength additive are provided.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 6, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Robert Lee Barcus, Khosrow Parviz Mohammadi
  • Patent number: 7598321
    Abstract: Disclosed is a composition which comprises or consists essentially of a high melt index ethylene acid copolymer comprising monomer units derived from ethylene, an alkyl (meth)acrylate, a (meth)acrylic acid, and an optional comonomer. Also disclosed is a composition comprising the ethylene acid copolymer crosslinked with a polyamine, a polyvalent metal salt, or combinations thereof. Also disclosed is a solution of the ethylene acid copolymer which can be used for solutions application to substrates.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: October 6, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Charles J. Talkowski
  • Patent number: 7598303
    Abstract: A process for making an aqueous dispersion is provided. More specifically, a process for making an aqueous dispersion having at least two polymeric components is provided.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: October 6, 2009
    Assignee: Rohm and Haas Company
    Inventor: Willie Lau
  • Patent number: 7572863
    Abstract: The present invention relates to the development of hydrophobically modified polymers [HMPs], which have emerged as promising materials in diverse fields such as paints, cosmetics, oils, food and textiles. They are used as thickeners in these applications. In our study, the hydrophobic modification on PAA was performed using hydrophobic compounds obtained from naturally occurring materials such as Cashew Nut Shell Liquid, [CNSL]. The DCCI coupling method was chosen for the hydrophobic modification of PAA. A series of hydrophobically modified PAAs were synthesized with different degrees of hydrophobic contents and were characterized by solution rheology.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: August 11, 2009
    Assignees: Countil of Scientific and Industrial Research, Ecole Superieur de Physique et Chimie Industrielles de la Ville de Paris (ESPCI)
    Inventors: Manohar Virupax Badiger, Prakash Purushot Wadgaonkar, Ashish Kishori Lele, Aarti Subhash Shedge, Dominque Hourdet, Patrick Perrin, Christophe Chassenieux
  • Patent number: 7563831
    Abstract: A method for curing a chemical composition, the composition containing at least one or more binders having ethylenically unsaturated groups, as well as one or more initiators for triggering a radical polymerization. The method includes a thermal curing step, in which the curing of the composition is effected by a radical polymerization of the binder, which is triggered by a thermal initiator and is carried out under protective gas. Paint films having improved mechanical properties can be produced using the method according to the present invention.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: July 21, 2009
    Assignee: Daimler AG
    Inventors: Markus Bischof, Elisabeth Gemmler, Fritz Mezger, Thomas Raith, Christoph Ruechardt
  • Patent number: 7557166
    Abstract: A gel-type polymer electrolyte, wherein said polymer comprises (A) an ethylene-unsaturated carboxylic acid copolymer or a derivative thereof and (B) a polyalkylene oxide having a hydroxyl group at one terminal thereof or a derivative thereof, which are bonded together by an ester bond. The gel-type polymer electrolyte has a high ionic conductivity, and makes it possible to provides a cell which has excellent charge/discharge characteristics at low temperatures as well as at high temperatures.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: July 7, 2009
    Assignees: Du Pont-Mitsui Polychemicals Co. Ltd
    Inventors: Noboru Oyama, Yuki Fujimoto, Yoshiyuki Iwase, Kouichi Nishijima
  • Publication number: 20090163365
    Abstract: The present invention relates to a water-swellable material comprising an inherently crosslinked polymer matrix and inorganic solid particles bound therein with a time-dependent swelling behavior that corresponds to a water uptake of at least 7.5 times the inherent weight of the hybrid material within one hour, as well as the applications thereof. The present invention further relates to a method for manufacture of such a water-swellable hybrid material.
    Type: Application
    Filed: April 4, 2006
    Publication date: June 25, 2009
    Inventors: Wulf Bentlage, Reinmar Peppmoller, Jürgen Kunstmann, Oliver Zindel
  • Publication number: 20090148717
    Abstract: Crosslinked films having electro-optic activity, methods for making the films, polymers useful in making the films, and devices that include the films. The films include a host crosslinked polymer having aligned polarizable chromophore moieties and aligned guest polarizable chromophore compounds.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 11, 2009
    Applicant: WASHINGTON, UNIVERSITY OF
    Inventors: Kwan-Yue Jen, Jingdong Luo, Tae-Dong Kim
  • Patent number: 7544740
    Abstract: A multi-layer nano-particle composition including a polymer core and at least two additional layers is provided. The nano-particles have a mean average diameter less than about 100 nm. The nano-particles can be modified via, for example, hydrogenation or functionalization. The nano-particles can be advantageously incorporated into rubbers, elastomers, and thermoplastics.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: June 9, 2009
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Victor J. Foltz
  • Publication number: 20090123689
    Abstract: A carpet cushion has attached thereto or thereon a layer of polymer composition comprising, consisting essentially of, consisting of, or produced from a fatty acid-modified ionomer and optionally blended or coextruded with an ethylene-containing polymer wherein the ionomer comprises, consists essentially of, consists of, or is produced from an ethylene copolymer and a fatty acid.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 14, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Donna Lynn Visioli, Gregory E. Hindman
  • Publication number: 20090118433
    Abstract: A process for producing a polyfluoroalkyl (meth)acrylate, which comprises isolating, from a reaction mixture containing a polyfluoroalkyl (meth)acrylate obtained by reacting a polyfluoroalkyl iodide of the formula CnF2n+1(CH2)mI (wherein n is an integer of from 2 to 7, and m is an integer of from 1 to 4) with a metal (meth)acrylate in tert-butanol, said polyfluoroalkyl (meth)acrylate by the following steps (1) to (3): (1) a step of taking out a crude liquid from the reaction mixture by solid-liquid separation; (2) a step of distilling the crude liquid to separate it into compound group A of compounds having a lower boiling point than the polyfluoroalkyl (meth)acrylate and compound group B of the polyfluoroalkyl (meth)acrylate and compounds having a higher boiling point than the polyfluoroalkyl (meth)acrylate; and (3) a step of distilling and purifying the polyfluoroalkyl (meth)acrylate from the compound group B in the presence of a polymerization inhibitor.
    Type: Application
    Filed: January 8, 2009
    Publication date: May 7, 2009
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Shoji FURUTA, Taiki Hoshino, Ryuji Seki
  • Publication number: 20090118434
    Abstract: There is disclosed pressure sensitive adhesive composition for polarization films use in the case of pasting the polarization films by means of crossed Nicols at ?0 and 90 degrees to the front and rear sides of a liquid crystal cell which composition comprises an acrylic copolymer (A) of a(meth) acrylic ester and a monomer having a cross-linkable functional group in the molecule each as a monomer component and a cross-linking agent (B), wherein the storage elasticity of the composition after cross-linking at 0 to 50° C. is in the range of 105 to 109 Pa, and the glass transition temperature (Tg) thereof is minus 20° C. or higher. The pressure sensitive adhesive composition is capable of providing optically functional films which are imparted with very excellent light leakage resistance without the occurrence floating peeling of films under the condition of high temperature and high humidity, when used for pasting polarization films by means of crossed Nicols at ?0 and 90 degrees.
    Type: Application
    Filed: December 29, 2008
    Publication date: May 7, 2009
    Applicant: LINTEC CORPORATION
    Inventors: Takayuki ARAI, Mikihiro KASHIO, Eiko KOZUKUE
  • Publication number: 20090110924
    Abstract: A pressure-sensitive adhesive for an optical film of the present invention comprises a (meth)acrylic polymer comprising 50 to 99.99% by weight of alkyl (meth)acrylate monomer unit and 0.01 to 30% by weight of a photocrosslinkable monomer unit having an unsaturated double bond-containing polymerizable functional group and a photocrosslinkable moiety different from the functional group. A pressure-sensitive adhesive layer is formed from the pressure-sensitive adhesive on at least one side of an optical film, wherein the photocrosslinkable moiety of the (meth)acrylic polymer in the pressure-sensitive adhesive is crosslinked by active energy ray irradiation. The pressure-sensitive adhesive can form the pressure-sensitive adhesive layer with a high level of durability and preferable workability.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 30, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinichi INOUE, Yuusuke TOYAMA, Mizue NAGATA, Toshitsugu HOSOKAWA
  • Patent number: 7511102
    Abstract: A liquid sealing agent used for automobile parts, electric parts, various kinds of machine parts and the like exhibits good oil resistance, heat resistance, adhesiveness and flexibility. A vinyl polymer has at least one crosslinkable silyl group and can yield a cured product exhibiting an oil resistance superior to that of a cured product from a reference polymer obtained by replacing the repeating unit thereof with butyl acrylate alone, in any one item of the immersion test according to JIS K 6258 for the land use 3-5 lubricating oil specified in JIS K 2215.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: March 31, 2009
    Assignee: Kaneka Corporation
    Inventors: Nobuhiro Hasegawa, Yoshiki Nakagawa
  • Patent number: 7501165
    Abstract: A retardation film according to the present invention consists of a single-layer film in which a birefringent chain polymer is oriented, the polymer having as a repeating unit (A), a structure represented by the following general formula (V): wherein R3 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; R4 and R8 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 4 carbon atoms, a linear or branched alkoxyl group having 1 to 4 carbon atoms, a linear or branched thioalkoxyl group having 1 to 4 carbon atoms, halogen, a nitro group, an amino group, a hydroxyl group, or a thiol group (where R4 and R8 are not simultaneously hydrogen atoms); and R5, R6, and R7 each independently represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: March 10, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Yutaka Ohmori, Michie Sakamoto, Shuusaku Nakano, Takahisa Konishi, Seiji Umemoto
  • Patent number: 7491772
    Abstract: The purpose of the invention is to obtain a water-dispersible adhesive composition capable of coating in an aqueous system and, particularly, an adhesive composition capable of preparing a removable water-dispersible acrylic adhesive sheet with less contamination to the surface of an adherend and having high resistance to water intrusion during wafer polishing, which is particularly suitable as an adhesive sheet for use in semiconductor wafer processing. The invention relates to a water-dispersible acrylic adhesive composition, which includes an acryl emulsion polymer obtainable by an emulsion polymerization of a monomer mixture containing an alkyl (meth)acrylate ester; and a crosslinker which is a carbodiimide crosslinker or a hydrazine crosslinker, in which the acryl emulsion polymer has a glass transition temperature of from ?80 to ?20° C.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: February 17, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Katsuhiko Kamiya, Tomonari Naito, Satomi Yoshie
  • Patent number: 7488782
    Abstract: A process for producing a hydrogenated polymer, which includes a step of hydrogenating aromatic rings of an aromatic vinyl compound—(meth)acrylate copolymer. In the process, the copolymer having a ratio, A/B, of from 0.25 to 4.0 (A is a molar number of constitutional units derived from the (meth)acrylate monomer, and B is a molar number of constitutional units derived from the aromatic vinyl monomer) is hydrogenated in a solvent in the presence of a catalyst which is composed of zirconium oxide supporting palladium. By the process, a highly transparent, hydrogenated polymer is stably and rapidly produced for a long period of time or repeatedly.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: February 10, 2009
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yuuichi Sugano, Yasuhiro Kushida, Tatsuya Yamauchi, Hideyuki Sato, Yoshikazu Shima
  • Patent number: 7473740
    Abstract: The present invention relates to a method for partial or total oxidation of one or several thiocarbonylthio ends of a polymer, obtained by radical polymerisation controlled by reversible addition-cleavage with thiocarbonylthio agents, Said method comprising the step of contacting said polymer with an ozone-containing gas, during which ozone reacts with the one or several thiocarbonylthio ends.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: January 6, 2009
    Assignee: Rhodia Chimie
    Inventors: Samir Zard, Béatrice Sire, Philippe Jost
  • Patent number: 7470738
    Abstract: A non-aqueous absorbent comprising a crosslinked polymer which contains a structural unit having a carboxyl group and/or a sulfonate group in an amount of 20 to 100% weight in its molecule and in which from 30 to 100% by mol of the protons in the carboxyl group and/or the sulfonate group have been substituted by onium cations; a non-aqueous gel made of this non-aqueous absorbent and an organic solvent; and a non-aqueous absorbent sheet and a non-aqueous absorbent agent containing the non-aqueous absorbent.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: December 30, 2008
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Takashi Sumiya, Kazuya Ohtani, Takeaki Yamaguchi, Youji Fujiura
  • Patent number: 7439311
    Abstract: The present invention provides a method for producing a polymer by conducting polymerization in a polymerization reactor having an inner wall covered with an anti-fouling agent comprising an aqueous solution containing a polyvinyl alcohol obtained through saponification of a polyvinyl ester that contains monomer units having a silyl group. In the present invention, the polyvinyl alcohol satisfies the following formulae (I) and (II): 370<P×S<9000 ??(I) where P indicates the viscosity-average degree of polymerization of the polyvinyl alcohol, and S indicates the content (mole %) of the monomer units having a silyl group of formula (1) in the polyvinyl alcohol; 0.2/100?(A?B)/(B)?75/100 ??(II) where A indicates the content (ppm) of silicon atoms in the polyvinyl alcohol, and B indicates the content (ppm) of silicon atoms in the polyvinyl alcohol that was washed with sodium hydroxide-containing methanol and then washed with methanol by Soxhlet extraction.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: October 21, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Masaki Kato, Kazuyuki Somemiya, Takeshi Kusudou, Naoki Fujiwara
  • Patent number: 7439308
    Abstract: A method for producing a (meth)acrylic polymer having crosslinkable silyl groups at the termini, comprising a step of adding a hydrosilane compound having a crosslinkable silyl group to an alkenyl-terminated (meth)acrylic polymer (A), which is prepared by atom transfer radical polymerization, in the presence of a platinum hydrosilylation catalyst. The amount of the platinum hydrosilylation catalyst is 0.1 to 10 mg on a platinum metal basis per kilogram of the alkenyl-terminated (meth)acrylic polymer (A). An object of the invention is to provide a method for producing a (meth)acrylic polymer having terminal crosslinkable silyl.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: October 21, 2008
    Assignee: Kaneka Corporation
    Inventors: Shigeki Ohno, Yoshiki Nakagawa, Kenichi Kitano, Masanao Takeda, Nao Fujita
  • Patent number: 7423092
    Abstract: The present invention relates to radiation-curable compositions useful as ink vehicles or inks, in particular UV-curable inks, such as UV-litho inks, comprising a (meth)acrylated styrene allyl alcohol copolymer obtained from the (meth)acrylation of a styrene allyl alcohol (SAA) copolymer with (meth)acrylic acid and/or one or more alkyl(meth)acrylates, and at least one alkoxylated acrylated monomer.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: September 9, 2008
    Assignee: Cytec Surface Specialties, SA
    Inventors: Isabelle Fallais, Luc Lindekens, Paul Gevaert
  • Publication number: 20080176994
    Abstract: Ethylene vinyl acetate compositions that have been partially crosslinked using organic peroxides are disclosed, as well as methods for their production. The crosslinked compositions have low melt index values and increased tensile strength, leading to flexibility and heat resistant properties.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Gerd A. Allermann, Hitesh A. Fruitwala
  • Patent number: 7402624
    Abstract: Graft copolymers with segmented (or block) arms and a process for preparing the same. Such polymers are particularly useful in formulating air-dry clear coat and color coat lacquers used in automotive refinishing.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: July 22, 2008
    Assignee: E.I. du Pont de Nemours & Company
    Inventor: Sheau-Hwa Ma
  • Patent number: 7402632
    Abstract: Method for increasing the molecular weight of polyacrylates, in which polyacrylates, functionalized at least in part of their chain ends by functional groups X, are reacted with a compound having at least functional groups Y capable of linking reactions with functional groups X.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: July 22, 2008
    Assignee: tesa Aktiengesellschaft
    Inventors: Marc Husemann, Stephan Zöllner
  • Publication number: 20080171286
    Abstract: There is provided polymeric particles having a particle size between about 60 nm and about 1000 nm and comprising a polymer, the polymer comprising a hydrophobic backbone, a near infrared absorbing segment having attached thereto a near infrared absorbing chromophore having an absorption peak between about 700 nm and about 1100 nm; and a near infrared transparent segment. Method of manufacture these particles are also provided. A coating composition comprising the above-polymeric particles and a reactive iodonium oligomer is also provided. Finally, a negative-working lithographic offset printing plate comprising a substrate; a hydrophilic under layer; and a laser imageable upper layer, wherein the laser imageable upper layer comprises the above polymeric particle is also provided.
    Type: Application
    Filed: August 10, 2007
    Publication date: July 17, 2008
    Inventors: My T. Nguyen, Marc Andre Locas
  • Publication number: 20080153979
    Abstract: Disclosed herein are non-natural amino acids and polypeptides that include at least one non-natural amino acid, and methods for making such non-natural amino acids and polypeptides. The non-natural amino acids, by themselves or as a part of a polypeptide, can include a wide range of possible functionalities, but typical have at least one oxime, carbonyl, dicarbonyl, and/or hydroxylamine group. Also disclosed herein are non-natural amino acid polypeptides that are further modified post-translationally, methods for effecting such modifications, and methods for purifying such polypeptides. Typically, the modified non-natural amino acid polypeptides include at least one oxime, carbonyl, dicarbonyl, and/or hydroxylamine group. Further disclosed are methods for using such non-natural amino acid polypeptides and modified non-natural amino acid polypeptides, including therapeutic, diagnostic, and other biotechnology uses.
    Type: Application
    Filed: October 16, 2007
    Publication date: June 26, 2008
    Applicant: AMBRX, INC.
    Inventors: Zhenwei MIAO, Junjie LIU, Thea NORMAN, Russell DRIVER
  • Publication number: 20080153980
    Abstract: A process for preparing polymer particles, consisting of a latex polymer dispersion including particles of liquid dispersible starting polymer in a dispersion liquid and growing a polymer shell on the particles via a starve fed free radical polymerization process.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Applicant: XEROX CORPORATION
    Inventor: Barkev KEOSHKERIAN
  • Patent number: 7390854
    Abstract: This invention is directed to fluorinated acrylate compositions, which are suitable for use as low shrinkage, low absorbance refractive index matching adhesives for use in “pig-tailing” polymeric integrated waveguides to optical fiber bundles.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: June 24, 2008
    Assignee: E. I. Dupont de Nemours and Company
    Inventor: Paul Gregory Bekiarian
  • Publication number: 20080140037
    Abstract: The crosslinker of the invention is an asymmetrical polyvinyl crosslinker that disassociates at elevated temperature, and is especially useful in the preparation of superabsorbent polymers.
    Type: Application
    Filed: October 26, 2005
    Publication date: June 12, 2008
    Inventor: Thomas H. Newman