Patents Assigned to Kabel-und-Gummiwerke AG
  • Foam manufacture
    Patent number: 4417002
    Abstract: A carboxylic acid or carboxylate is reacted with an isocyanate to produce gas which is used to give a blowing action in the manufacture of a foam plastics material, especially foam polyurethane.Preferably formic acid or a formate is used.
    Type: Grant
    Filed: July 7, 1982
    Date of Patent: November 22, 1983
    Assignee: Kabel-und-Gummiwerke AG
    Inventor: Bernhard Liessem