Patents Assigned to Collagen Development Corporation
  • Method of preparation of regenerated fiber collagen condom
    Patent number: 4406853
    Abstract: A novel collagen condom consists of isotropically-strong, crosslinked, regenerated fiber collagen. A method of preparation involves the steps of at least twice dipping a mandrel into an acidic collagen dispersion; slowly removing the mandrel under spinning conditions; neutralizing and drying the membrane between dippings; crosslinking the finally dried membrane while on the mandrel and removing the membrane from the mandrel.
    Type: Grant
    Filed: September 15, 1981
    Date of Patent: September 27, 1983
    Assignee: Collagen Development Corporation
    Inventor: Teruo Miyata