Patents Examined by Ha S Nguyen
  • Patent number: 10829603
    Abstract: There is provided a cured product of an epoxy resin composition, in which the compounding composition and the phase-separated structure of the epoxy resin composition are controlled so that the balance between rigidity and toughness of the cured product is superior compared with those of cured products of conventional epoxy resin compositions. A cured product of an epoxy resin composition, which has both superior rigidity and superior toughness compared with conventional materials can be produced by curing an epoxy resin composition comprising an epoxy resin, a polyrotaxane having graft-chain-modified cyclic molecules and a curing agent for the epoxy resin.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: November 10, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Keiichiro Nomura, Nobuhiro Morioka, Kentaro Sano, Noriyuki Hirano, Sadayuki Kobayashi
  • Patent number: 10815372
    Abstract: This invention relates to flame-retardant modified maleic anhydride resins. This resin copolymer consists of styrene, maleic anhydride and, along with a halogen-free epoxy resin, interacts with a hydroxyl group to become a flame-retardant maleic anhydride copolymer that can be applied to copper clad laminate and prepreg. This composition comprises: (A) one or more epoxy resin mixtures; (B) modified styrene-maleic anhydride curing agent copolymer; (C) additives; (D) inorganic fillers. When the aggregate amount of components (A), (B) and (C) equals 100%, component (A), epoxy resin mixture, is 60%-80% in total weight, component (B), modified styrene-maleic anhydride curing agent copolymer, equals 10%-40% in total weight. This invention uses the copolymer of Styrene and Maleic anhydride to generate a flame-retardant hydroxyl group, and with the phosphorus additive, the above components eventually interact to form a flame-retardant modified maleic anhydride copolymer curing agent.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 27, 2020
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Cheng-Chung Lee, Jung-Hai Huang, Chien-Hsing Lee, Chun-Hsiung Yang
  • Patent number: 10808074
    Abstract: The present invention relates to a compound having the following structure I: where Ar1, Ar2; R1, m, and n are defined herein. The compound of the present invention is useful as an open time additive in waterborne coatings compositions, particularly waterborne paint compositions.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: October 20, 2020
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Edward D. Daugs, John J. Rabasco, Antony K. Van Dyk, Tianlan Zhang
  • Patent number: 10800873
    Abstract: To provide a technique for producing an epoxy resin cured product having toughness and elasticity. (A) the amine curing agent (B) an epoxy resin curing agent characterized in that the acrylic block copolymer is dissolved.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 13, 2020
    Assignee: NAMICS CORPORATION
    Inventor: Kazuyoshi Yamada
  • Patent number: 10767012
    Abstract: A functionalized polyamide is prepared by reacting a thio acid with an amide monomer or a mixture of a diamine and a dicarboxylic acid. In the reaction, the amide monomer is preferably a lactam compound, the thio acid has a formula of HOOC-A-SH wherein A represents an alkylene group containing from 1 to 10 carbon atoms, the diamine is an aliphatic diamine and the dicarboxylic acid is a aliphatic dicarboxylic acid. The functionalized polyamide can be vulcanized directly with rubber, which results in the use of less dip for adhering the tire cord to the rubber.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: September 8, 2020
    Assignee: Firestone Fibers & Textiles Company, LLC
    Inventors: Laura S. Kocsis, William L. Hergenrother, Terrence E. Hogan, Kevin J. Bishop, Waruna C. B. Kiridena
  • Patent number: 10760184
    Abstract: The present invention relates to a method for preparing superabsorbent polymer fiber and superabsorbent polymer fiber prepared thereby. According to the preparation method of the present invention, superabsorbent polymer in the form of fiber or non-woven fabric that maintains super absorbency function can be prepared.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: September 1, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jin Seok Seo, Young Sam Kim
  • Patent number: 10752729
    Abstract: A coating film formed by curing of an epoxy resin composition containing at least an epoxy resin, an epoxy resin curing agent and a solvent, wherein the coating film contains the solvent in a ratio of 1% by mass or more and 20% by mass or less, and the epoxy resin curing agent is a reaction product of the following (A) and (B). (A) At least one selected from the group consisting of metaxylylenediamine and paraxylylenediamine. (B) At least one selected from the group consisting of an unsaturated carboxylic acid represented by the following formula (1) and a derivative thereof: wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aralkyl group having 1 to 8 carbon atoms, or an aryl group.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 25, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kazuki Kouno, Saeko Sato, Tomotaka Wada, Yuiga Asai
  • Patent number: 10745526
    Abstract: Crosslinked polymers and their uses in electrochemical systems, for example, as electrolyte membrane, are described. More precisely, these crosslinked polymers are formed by the crosslinking of a random copolymer based on monomers of glycidyl methacrylate or acrylate and of poly(ethylene glycol) methyl acrylate or methacrylate with a volatile polyamine crosslinking agent.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 18, 2020
    Assignee: HYDRO-QUEBEC
    Inventors: Jean-Christophe Daigle, Serge Verreault, Nancy Turcotte, Julie Hâmel-Paquet, Karim Zaghib
  • Patent number: 10723840
    Abstract: Provided is a polyphenylene ether resin composition having excellent heat aging resistance and fluidity. A polyphenylene ether includes at least one structural unit selected from chemical formulae (1), (2), and (3).
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 28, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Chihiro Orimo, Toru Yamaguchi, Mihoko Yamamoto, Akira Mitsui
  • Patent number: 10711087
    Abstract: A process for producing a viscous epoxy syrup from at least one liquid multifunctional epoxy, comprising the steps of: adding an initiator selected from the group consisting of electron-poor monoisocyanate, photoinitiator and thermal initiator to at least one liquid multifunctional epoxy; mixing the components; polymerizing the multifunctional epoxy such that the viscosity of the resulting epoxy syrup is at least twice as high, preferably at least four times as high and in particular at least ten times as high as the viscosity of the employed epoxy in the unreacted state makes it possible to produce epoxy adhesives having pressure-sensitive properties.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 14, 2020
    Assignee: TESA SE
    Inventors: Christian Schuh, Klaus Keite-Telgenbüscher, Yao Shu
  • Patent number: 10697092
    Abstract: The present invention relates to a method for preparing superabsorbent polymer fiber and superabsorbent polymer fiber prepared thereby. According to the preparation method of the present invention, superabsorbent polymer in the form of fiber or non-woven fabric that maintains super absorbency function can be prepared.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 30, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jin Seok Seo, Young Sam Kim
  • Patent number: 10689482
    Abstract: The present invention relates to an alkoxysilylated epoxy compound, a composite exhibiting good heat resistance properties, low CTE and high glass transition temperature and not requiring a coupling agent, a composition including the same, a cured product formed of the composition, a use of the cured product, and a method of preparing the epoxy compound having alkoxysilyl group. An epoxy compound having an epoxy group and an alkoxysilyl group, a composition including the epoxy compound, a curing agent, a filler and/or a reaction catalyst, a cured product of the composition, and a use of the composition including an electronic part are provided. In a composite and/or cured product, the epoxy composition exhibits improved heat resistance properties, decreased CTE, and increased glass transition temperature or Tg-less. The cured product exhibits good flame retardant properties by the introduction of the alkoxysilyl group.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: June 23, 2020
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Hyun-Aee Chun, Su-Jin Park, Sang-Yong Tak, Yun-Ju Kim, Sook-Yeon Park, Sung-Hwan Park
  • Patent number: 10676594
    Abstract: There is provided herein a composition comprising (a) a mercapto-functional silicon compound having the general Formula (I): and a reactive resin containing at least one epoxy and/or (meth)acrylate group. There is also provided a silylated resin resulting from the reaction product of mercapto-functional silicon compound (a) and reactive resin contain at least one epoxy and/or (meth)acrylate groups.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 9, 2020
    Assignee: Momentive Performance Materials Inc.
    Inventors: Constantine Kondos, Vikram Kumar, Martin Wusik
  • Patent number: 10626219
    Abstract: A polymer is provided. The polymer includes a first repeating unit represented by Formula (I) and a second repeating unit represented by Formula (II): wherein Y1 and Y2 are independently —H, —CH3, or —CH2CH3; n is an integer ranging from 1 to 25; and the molar ratio of the first repeating unit to the second repeating unit is from 5:95 to 15:45. A resin composition including the aforementioned polymer is also provided.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: April 21, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kuei-Yi Chuang, Feng-Po Tseng, Kuo-Chan Chiou
  • Patent number: 10617602
    Abstract: There is provided a serum- or plasma-separating composition capable of maintaining stable blood separation performance over a prolonged period even if subjected to a sterilization step during production or to prolonged storage. The serum- or plasma-separating composition comprises a resin composition having fluidity at normal temperature, a silica fine powder, and an amide-based compound represented by the following formula (1): wherein R3 is an alkyl group having 1 to 4 carbon atoms; and R1 and R2 are independently a hydrogen atom or a linear or branched alkyl group having 1 to 8 carbon atoms.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 14, 2020
    Assignee: SEKISUI MEDICAL CO., LTD.
    Inventors: Ryusuke Okamoto, Kana Hayashi, Kuniya Komai
  • Patent number: 10597499
    Abstract: The present invention relates to a polymer composition comprising an epoxy resin and a multistage polymer. In particular the present invention it relates to polymer composition comprising an epoxy resin and a multistage polymer that can be used as a masterbatch. More particularly the present invention relates also to a process for preparing a polymer composition comprising an epoxy resin and a multistage polymer by spray drying or coagulation.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: March 24, 2020
    Assignee: Arkema France
    Inventors: Raber Inoubli, Rosangela Pirri, Philippe Hajji
  • Patent number: 10563009
    Abstract: A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl-cis-cyclooctene, and optionally cis-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefin pre-polymer is provided.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: February 18, 2020
    Assignees: Dow Global Technologies LLC, The Regents of the University of Minnesota
    Inventors: Henry Martinez, Marc A. Hillmyer, Megan Matta, Jeffrey C. Munro, Kim L. Walton
  • Patent number: 10549516
    Abstract: A method for bonding composite substrates includes coupling a first co-cure prepreg layer having a first off-set amine to epoxide molar ratio onto a surface of a first composite substrate and coupling a second co-cure prepreg layer having a second off-set amine to epoxide molar ratio onto a surface of a second composite substrate. The first and second composite substrates are cured to the first and second co-cure prepreg layers, respectively, using a first cure cycle (including B-stage and cure temperatures) to form a first and a second co-cure prepreg layer portion. The method further includes coupling the first co-cure prepreg layer portion to the second co-cure prepreg layer portion and applying a second cure cycle to cure the first co-cure prepreg layer portion of the first composite substrate to the second co-cure prepreg layer portion of the second composite substrate to form a monolithic covalently bonded composite structure.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: February 4, 2020
    Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
    Inventors: Frank L. Palmieri, John W. Connell, Christopher J. Wohl, Jr.
  • Patent number: 10526355
    Abstract: The present invention relates to novel hardeners for curing epoxy resins and to cure accelerants for the accelerated curing of epoxy resins comprising, in each case, at least one compound from the group of esters of phosphorus-containing acids according to Formula (I), wherein there applies to Formula (I): wherein there applies to the radicals R1, R2, R3, R6, X and indices m, n, p, simultaneously or independently of one another: R1, R2=simultaneously or independently of one another, hydrogen or alkyl, R3=alkyl, aryl, —O-alkyl, —O-aryl, —O-alkylaryl or —O-arylalkyl, R6=hydrogen, alkyl or —NHC(O)NR1R2, X=oxygen or sulphur, m=1, 2 or 3, n=0, 1 or 2, wherein there applies: m+n=3 p=0, 1 or 2.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: January 7, 2020
    Assignee: ALZCHEM AG
    Inventors: Frank Eißmann, Martin Ebner, Hans-Peter Krimmer, Doris Krammer
  • Patent number: 10526470
    Abstract: The invention is related to a cost-effective method for producing water-soluble thermally-crosslinkable hydrophilic polymeric materials. Resultant materials can find particular use in preparing a packaging solution used for packaging and autoclaving medical devices, especially contact lenses. Those packaging solutions are especially suitable for forming a relatively-thick and soft hydrogel coatings on contact lenses or medical devices according to an in-package-crosslinking (IPC) processes. The resultant non-silicone hydrogel coatings can have a superior lubricity (a friction rating of 0) with minimized or no surface cracking.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 7, 2020
    Assignee: Novartis AG
    Inventors: Chung-Yuan Chiang, Yongxing Qiu, Kelly Kayi Tallau, Angela Driver-Scott