Patents Examined by Arthur H. Koekert
  • Patent number: 4190567
    Abstract: A curable film-forming cationic polyurethane emulsion containing a compound having an epoxide group, as a curing agent.
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: February 26, 1980
    Assignee: Kao Soap Co., Ltd.
    Inventors: Hidemasa Ohmura, Masahiro Saito