Patents Represented by Attorney Patrick L. Kelly

Find this attorney in the Justia Lawyer Directory

  • Polymer blends
    Patent number: 5856405
    Abstract: Halide polymers such as polyvinyl chloride and polyamides melt blended at a polyamide to halide polymer weight ratio of about 1.5:1 to about 2:1 with an effective amount of a carboxyl and/or CO-functional ethylene polymer to compatibilize the halide polymer and polyamide exhibit superior chemical resistance.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: January 5, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: George Henry Hofmann