Patents Assigned to Chemie Linz Gesellschaft G.m.b.H.
  • Benzophenone iminodiimides and heat-stable polymers derived therefrom
    Patent number: 5288876
    Abstract: Benzophenone iminodiimides of the formula I ##STR1## in which Y denotes hydroxyl or carboxyl, R.sub.1 denotes the optionally substituted radicals alkylene, phenylene or benzylidene, R.sub.2 denotes the radicals OH, substituted or unsubstituted alkyl or NH--CO--NHR.sub.3 and R.sub.3 denotes the radicals H, alkyl, phenyl or benzyl, processes for their preparation and polymers prepared therefrom.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: February 22, 1994
    Assignee: Chemie Linz Gesellschaft G.m.b.H.
    Inventors: Gerd Greber, Heinrich Gruber, Afschin Hassanein