Patents by Inventor Weichen Chi

Weichen Chi 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).

  • Radiation-cured, non-blocking heat activated label adhesive and coatings and method for using same
    Patent number: 6210517
    Abstract: A radiation curable precursor coating composition for the preparation of a non-blocking, heat activatable adhesive includes a curable acrylic material, a curable elastomeric material, and a hydrocarbon tackifier material having a softening temperature ranging from approximately 50° C. to approximately 200° C., wherein when the acrylic material and the elastomeric material are cured, the coating composition is non-blocking at room temperature, but when the coating composition is heated to a temperature above both the softening temperature of the hydrocarbon tackifier and the Tg of the coating composition, the coating composition becomes adhesive.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: April 3, 2001
    Assignee: Diversified Chemical Technologies, Inc.
    Inventors: Rajan Eadara, Mooil Chung, David Wen-Lung Chang, Weichen Chi