Patents Assigned to Polymer Dynamics (Delaware), Ltd.
  • Energy-attenuating polyurethanes
    Patent number: 4722946
    Abstract: A non-liquid, energy-absorbing polyurethane is derived from the process which comprises reacting a mixture of linear and branched polyols, a polyisocyanate and, optionally, a blowing agent, under polyurethane-forming conditions at an isocyanate index of from about 65 to about 85.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: February 2, 1988
    Assignee: Polymer Dynamics (Delaware), Ltd.
    Inventor: Fritz Hostettler
  • Shoe innersole
    Patent number: D302764
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: August 15, 1989
    Assignee: Polymer Dynamics (Delaware) Ltd
    Inventors: W. J. Peoples, Neal Kramer