Patents Assigned to Duetshe Texaco Aktiengesellshaft
  • Novel bicyclic amine catalysts
    Patent number: 4921879
    Abstract: New catalysts are made available for the production of polyurethane and polyepoxide resins being derivates of 2-azabicyclo[2.2.2]hept-5-enes and 2-azabicyclo[2.2.1]heptanes substituted in 2- and optionally in 3-position. Also provided is a process for preparing same by reacting cyclopentadiene with salts of strong acids of ammonia or of primary amines and aldehydes and, optionally, by subsequent catalytic hydrogenation of the reaction product.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: May 1, 1990
    Assignee: Duetshe Texaco Aktiengesellshaft
    Inventors: Karl-Heniz Gluzek, Heiko Humbert