Patents by Inventor Michael Wen-Chien Yang

Michael Wen-Chien Yang 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 curable compositions for coating and imaging processes and method of use
    Patent number: 4120721
    Abstract: This invention relates to a liquid radiation curable composition useful for coating and imaging which comprises(1) an acrylic or methacrylic terminated, urethane containing polyene,(2) a non-water soluble vinyl monomer diluent, preferably an acrylate or methacrylate monomer diluent,(3) a polythiol containing at least two thiol groups per molecule and(4) a photoinitiator.The composition on exposure to radiation, e.g., a U.V. light source, cures to a solid polythioether.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: October 17, 1978
    Assignee: W. R. Grace & Co.
    Inventors: Arthur Donald Ketley, Paul Richard Hein, Michael Wen-Chien Yang