Patents by Inventor Shoroku Kaneko

Shoroku Kaneko 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).

  • Crosslinked resin of epoxy compound and isocyanate and process for producing same
    Patent number: 4401499
    Abstract: A crosslinked resin excellent in heat resistance, toughness, moisture resistance and adhesiveness can be obtained by the use of an epoxy compound having both alcoholic hydroxyl groups and epoxy groups in its molecule and an isocyanate compound having isocyanate groups in its molecule by first reacting the alcoholic hydroxyl groups of said epoxy compound and the isocyanate groups of said isocyanate compound to produce an epoxy prepolymer having urethane linkages stable at room temperature, followed by dissociating the urethane linkages of the prepolymer to regenerate the isocyanate groups and reacting said isocyanate groups with the epoxy groups of said epoxy compound.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: August 30, 1983
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Shoroku Kaneko, Sigenori Yamaoka, Masuo Mizuno, Yukihiro Okabe