Patents by Inventor Nien-chu Chiang

Nien-chu Chiang 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).

  • Two-component urethane in-mold coating composition
    Patent number: 5387750
    Abstract: A method for producing an in-mold coated plastic article having an adherent coating wherein the coating composition has improved surface coverage properties and a fast cure rate. The coating composition contains (a) a first component comprising at least one polyol having at least 4 hydroxyl groups and a viscosity at room temperature of 6000 cps or less; and (b) a second component comprising a solvent-free isocyanate prepolymer. The viscosity of the coating composition is 15000 cps or less at room temperature.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: February 7, 1995
    Assignee: The Sherwin-Williams Company
    Inventor: Nien-chu Chiang