Patents by Inventor Sho KATSUMATA

Sho KATSUMATA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200017617
    Abstract: A (meth)acrylic copolymer of the present invention includes at least one constituent unit (A) selected from the group consisting of a constituent unit (A1) having at least one structure (I) represented by Formula (1), Formula (2), or Formula (3), a constituent unit (A2) containing a triorganosilyloxycarbonyl group, and a constituent unit (A3) having at least one structure (III) represented by Formula (4) or Formula (5), a constituent unit (B) derived from a specific polysiloxane block-containing polymerizable monomer (b), and a constituent unit (C) derived from a macromonomer (c).
    Type: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kana TANIGUCHI, Junichi NAKAMURA, Sho KATSUMATA
  • Publication number: 20200010697
    Abstract: A (meth)acrylic copolymer of the present invention includes a constituent unit (B) derived from a polysiloxane block-containing polymerizable monomer (b) represented by Formula (b1). In Formula (b1), R30 represents a hydrogen atom or a methyl group, a represents an integer of 2 to 5, b represents a number of 0 to 50, c represents an integer of 0 to 18, d represents a number of 1 to 1000, e represents a number of 1 to 80, R31 to R39 each represents an alkyl group, an alkoxy group, a phenyl group, a substituted phenyl group, a phenoxy group, or a substituted phenoxy group.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kana TANIGUCHI, Junichi NAKAMURA, Sho KATSUMATA
  • Publication number: 20190352514
    Abstract: Disclosed herein is an antifouling coating composition containing a resin composition and an antifouling agent, where the resin composition includes a polymer (A) containing at least one monomer-derived structural unit having the structure represented by formula (1), (2) or (3) below, and after the resin composition is stored at 40° C. for 30 days, the decomposition rate of the structure represented by formula (1), (2) or (3) in the polymer (A) is 20% or lower.
    Type: Application
    Filed: August 1, 2019
    Publication date: November 21, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Sho Katsumata, Kana Taniguchi, Junichi Nakamura, Masatoshi Ura, Yoshihiro Kamon, Takafumi Asai, Ryuichi Ansai
  • Publication number: 20190276682
    Abstract: Provided are a polymer, a resin composition, and an antifouling coating material composition which are capable of forming a coating film having both of water resistance and antifouling properties resulting from superhydrophilicity; a method for producing the polymer; a method for forming a structure for stabilizing a carbamate on a surface of a coating film using the polymer; and a method for regenerating a structure for stabilizing a carbamate on a surface of a coating film using the polymer. The polymer having a structure which reacts with CO2 in the presence of water and stabilizes a formed carbamate, in which Expression (1) is satisfied.
    Type: Application
    Filed: April 30, 2019
    Publication date: September 12, 2019
    Applicants: Waseda University, Mitsubishi Chemical Corporation
    Inventors: Takeo SUGA, Hiroyuki NISHIDE, Sho KATSUMATA, Kana TANIGUCHI, Junichi NAKAMURA, Tomokazu IWASAKI
  • Publication number: 20190100660
    Abstract: Provided is an antifouling coating composition, which can form a coating film having good hardness and good physical properties and having a wear degree appropriate for expressing a long-term antifouling effect, has a viscosity not being excessively high, and makes it possible to reduce a content of volatile organic compounds, and a polymer-containing composition which is suitable for obtaining the antifouling coating composition. The polymer-containing composition contains a (meth)acryl-based copolymer (A-1), in which the (meth)acryl-based copolymer (A-1) contains a constitutional unit (U11) or a constitutional unit (U12) having carboxylate forming an ionic bond with a divalent metal atom, and has a weight-average molecular weight of 1,000 to 5,000, and the polymer-containing composition has a coating film hardness (Martens hardness) equal to or higher than 2.5 N/mm2.
    Type: Application
    Filed: December 4, 2018
    Publication date: April 4, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kana Taniguchi, Sho Katsumata, Junichi Nakamura, Nobuaki Kanazawa
  • Publication number: 20180201797
    Abstract: First embodiment of a (meth)acrylic copolymer in the present invention includes following: a (meth)acrylic copolymer having at least one kind of constitutional unit selected from the group consisting of a constitutional unit (A1) having at least one kind of structure (I) selected from the group consisting of structures represented by the following formula (1), formula (2), or formula (3) and a constitutional unit (A2) having a triorganosilyloxycarbonyl group and a constitutional unit (B) derived from a macromonomer (b): (where, X represents —O—, —S—, or —NR14—, R14 represents a hydrogen atom or an alkyl group, R1 and R2 each represent a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, R3 and R5 each represent an alkyl group having from 1 to 20 carbon atoms, a cycloalkyl group, or an aryl group, and R4 and R6 each represent an alkylene group having from 1 to 10 carbon atoms).
    Type: Application
    Filed: March 15, 2018
    Publication date: July 19, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kana TANIGUCHI, Sho KATSUMATA, Junichi NAKAMURA, Masatoshi URA, Yoshihiro KAMON, Takafumi ASAI
  • Publication number: 20180051179
    Abstract: A resin composition, formed to have a polymer (A) containing at least one monomer-derived structural unit having the structure represented by formula (1), (2) or (3) below, and after the resin composition is stored at 40° C. for 30 days, the decomposition rate of the structure represented by formula (1), (2) or (3) in the polymer (A) is 20% or lower.
    Type: Application
    Filed: April 15, 2016
    Publication date: February 22, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Sho KATSUMATA, Kana TANIGUCHI, Junichi NAKAMURA, Masatoshi URA, Yoshihiro KAMON, Takafumi ASAI, Ryuichi ANSAI