Patents by Inventor Yoh Sugimura

Yoh Sugimura 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).

  • Process for preparing self-crosslinking resin
    Patent number: 5587426
    Abstract: The present invention provides:(1) a self-crosslinking resin (I) having a blocked isocyanate group and a hydroxyl group in the molecule and characterized in that the resin is prepared from a vinyl polymer (A) having at least two free isocyanate groups in the molecule and an acrylic resin (B) having at least two hydroxyl groups in the molecule by reacting some of the hydroxyl groups of the resin (B) with some of the free isocyanate groups of the polymer (A), and subsequently reacting a blocking agent with all the remaining free isocyanate groups, and(2) a self-crosslinking resin (II) having a blocked isocyanate group and a hydroxyl group in the molecule and characterized in that the resin is prepared from a vinyl polymer (C) having a free isocyanate group and a blocked isocyanate group in the molecule and the acrylic resin (B) having at least two hydroxyl groups in the molecule by reacting some of the hydroxyl groups of the resin (B) with all the free isocyanate groups of the polymer (C).
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: December 24, 1996
    Assignee: Kansai Paint Company, Limited
    Inventors: Yoshiyuki Yukawa, Motoshi Yabuta, Akimasa Nakahata, Yoh Sugimura
  • Coating resin compositions
    Patent number: 5414055
    Abstract: (1) A coating resin composition consisting essentially of a self-crosslinking resin (I) having at least one hydroxyl group and at least one blocked isocyanate group in the molecule wherein the resin (I) is prepared by reacting some of the free isocyanate groups of a vinyl polymer (A) having at least two free isocyanate groups in the molecule with some of the hydroxyl groups of a polyolefin resin (B) having at least two hydroxyl groups in the molecule, and subsequently reacting a blocking agent with the remaining free isocyanate groups, and (2) a coating resin composition consisting essentially of a self-crosslinking resin (II) having at least one hydroxyl group and at least one blocked isocyanate group in the molecule wherein the resin (II) is prepared by reacting all free isocyanate groups of a vinyl polymer (C) having at least one free isocyanate group and at least one blocked isocyanate group in the molecule with some of the hydroxyl groups of a polyolefin resin (B) having at least two hydroxyl groups in t
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: May 9, 1995
    Assignee: Kansai Paint Company, Limited
    Inventors: Yoh Sugimura, Motoshi Yabuta, Yoshiyuki Yukawa, Yasuhiro Fujii