Patents by Inventor Toyomichi Shimada

Toyomichi Shimada 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).

  • Water dispersion type water and oil repellent composition
    Patent number: 6376592
    Abstract: A water dispersion type water and oil repellent composition obtained by polymerizing the following polymerizable monomer mixture (b) in the presence of a compound (a) having a blocked isocyanate group and no polymerizable unsaturated group: (b) a mixture comprising a polymerizable monomer having a polyfluoroalkyl group and a polymerizable monomer having no polyfluoroalkyl group.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: April 23, 2002
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Toyomichi Shimada, Takashige Maekawa
  • Aqueous antifouling composition, process for its production and product treated therewith
    Patent number: 6271283
    Abstract: An aqueous antifouling composition comprising fine particles of a copolymer which comprises the following polymer units (a), (b) and (c) and which has a glass transition temperature of at most 5° C., and an aqueous medium in which the fine particles are dispersed: (a) polymer units of a (meth)acrylate having a polyfluoroalkyl group, (b) polymer units of an alkyl acrylate wherein the carbon number of the alkyl group is from 2 to 12, and (c) polymer units of a (meth)acrylic monoester of a polyol.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: August 7, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Toyomichi Shimada, Yuichi Omori, Takashige Maekawa
  • Aqueous dispersion type antisoiling composition
    Patent number: 6251984
    Abstract: An aqueous dispersion type antisoiling composition comprising an aqueous medium, and fine particles of the following reaction product (A) and fine particles of the following addition polymer (B), dispersed in the aqueous medium, or an aqueous medium, and fine particles comprising the reaction product (A) and the addition polymer (B), dispersed in the aqueous medium: Reaction product (A): a reaction product of compounds (a1), (a2) and (a3); Compound (a1): a compound having a polyfluoroalkyl group and a group having an active hydrogen atom reactive with an isocyanate group; Compound (a2): a compound having no polyfluoroalkyl group and a group having an active hydrogen atom reactive with an isocyanate group; Compound (a3): a polyisocyanate compound; Addition polymer (B): a copolymer comprising polymer units of a polyfluoroalkyl group-containing (meth)acrylate and polymer units of methyl methacrylate.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: June 26, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Toyomichi Shimada, Takashige Maekawa
  • Antifouling composition, method for its production and product treated therewith
    Patent number: 6207777
    Abstract: An antifouling composition comprising, as an effective component, a copolymer comprising the following polymer units (a), (b), (c) and (d): (a) polymer units of a (meth)acrylate having a polyfluoroalkyl group, (b) polymer units of a (meth)acrylate having a polyoxyethylene group, (c) polymer units of a (meth)acrylate having a polyoxypropylene group, and (d) polymer units of a (meth)acrylate having a blocked isocyanate group.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: March 27, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Toyomichi Shimada, Akane Sanekata, Takashige Maekawa
  • Water and oil repellent compositon
    Patent number: 6177531
    Abstract: A water and oil repellent composition containing, as an effective component, a copolymer comprising the following polymeric units (a), (b) and at least one member selected from (c) and (d): polymeric units (a): Polymeric units of a (meth)acrylate having a polyfluoroalkyl group; Polymeric units (b): Polymeric units of 2-isocyanate ethyl (meth)acrylate with the isocyanate group blocked; Polymeric units (c): Polymeric units of vinyl chloride; and Polymeric units (d): Polymeric units of an alkyl (meth)acrylate.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: January 23, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Toyomichi Shimada, Kyoichi Kaneko, Shuichiro Sugimoto, Takashige Maekawa
  • Water and oil repellent composition, treating method therewith and copolymer
    Patent number: 5688309
    Abstract: A water and oil repellent composition consisting essentially of a copolymer comprising the following polymeric units A, B, C and D, and an organic solvent:Polymeric units A: Polymeric units derived from an acrylate containing a polyfluoroalkyl group, and/or a methacrylate containing a polyfluoroalkyl group;Polymeric units B: Polymeric units derived from an acrylate containing a hydrocarbon group, and/or a methacrylate containing a hydrocarbon group;Polymeric units C: Polymeric units derived from an acid anhydride having an unsaturated group; andPolymeric units D: Polymeric units derived from triallyl cyanurate.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: November 18, 1997
    Assignee: Asahi Glass Company Ltd.
    Inventors: Toyomichi Shimada, Yuichi Ohmori, Takashige Maekawa