Patents Examined by William H. Clark
  • Blends of ethylene vinyl alcohol copolymer and polyamides, and multilayer containers made therefrom
    Patent number: 5126401
    Abstract: A blenad consisting ethylene vinyl alcohol copolymer and a polyamide blend of an amorphous polyamide and a semicrystalline polyamide which is miscible with the amorphous polyamide but substantially immiscible with the vinyl alcohol copolymer exhibits good mechanical and barrier properties as well as good resistance to thermal degradation.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: June 30, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard T. Chou