Patents by Inventor Byoung In Cho

Byoung In Cho has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the manufacture of polyurethane elastomers
    Patent number: 5159012
    Abstract: An improved process for the manufacture of polyurethane elastomers from a reaction mixture which comprises a polyol, an isocyanate, water, a bismuth catalyst and an optional filler. In the improved process of this invention, the rate of reaction is decreased by the addition of water to the reaction mixture and increased by the removal of water from the reaction mixture.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: October 27, 1992
    Assignee: Textile Rubber & Chemical Co., Inc.
    Inventors: Van I. Doesburg, Mark N. Cline, Byoung-In Cho, L. Jay Taylor