Patents Assigned to Kanekafuchi Kagaku Kogyo Kabushiki Kaisha
  • Polyimide compositions
    Patent number: 6303742
    Abstract: The present invention provides a novel polyimide composition which includes a cinnamoyl group or a derived cinnamoyl group and has photo-reactivity and heat-reactivity inherent to the cinnamoyl group. Further, a novel diamine and an acid dianhydride according to the present invention are materials mainly used for preparing a novel polyimide composition having the cinnamoyl group or the derived cinnamoyl group in a main chain or a side chain.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 16, 2001
    Assignee: Kanekafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kohji Okada, Hitoshi Nojiri