Patents Assigned to Buckman Laboratories Internation, Inc.
  • Diamine compounds, method of making same, method of use of same and intermediates
    Patent number: 5268470
    Abstract: A diamine useful as a catalyst for the polymerization of urethane. A method of making the catalyst comprises reacting a spiro quaternary amine with a secondary amine. The spiro quaternary amine is also useful as an antimicrobial agent.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: December 7, 1993
    Assignee: Buckman Laboratories Internation, Inc.
    Inventors: Wallace E. Puckett, Mark L. Zollinger