Patents Represented by Attorney, Agent or Law Firm Linda K H Sauerbrunn
  • Preparation and use of gamma-butyrolactones as cross-linking agents
    Patent number: 6833460
    Abstract: The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product is a gamma-hydroxy amide. The resulting materials are useful as the cross-linking agents in a variety of coatings and coatings processes.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: December 21, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Albert Gordon Anderson
  • Preparation and use of gamma-butyrolactones as cross-linking agents
    Patent number: 6423850
    Abstract: The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product is a gamma-hydroxy amide. The resulting materials are useful as the cross-linking agents in a variety of coatings and coatings processes.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: July 23, 2002
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Albert Gordon Anderson