Patents by Inventor Philip Yung-Chin Yang

Philip Yung-Chin 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).

  • Waterborne coating compositions
    Patent number: 5824734
    Abstract: Disclosed is an improved fast dry and extremely durable waterborne, coating composition particularly adapted for use as a traffic paint. The basic waterborne coating for traffic paint is comprised of an aqueous emulsion containing an acrylic film forming polymer, a stabilizing system for the emulsion which is pH sensitive, and mineral pigment. The improvement to the basic water borne coating for traffic paint resides in utilizing a hydrophobic acrylate containing polymer which incorporates from about 0.1 to 5% by weight of an secondary or tertiary amino acrylate and a crosslinkable monomer as components of the hydrophobic polymer. The hydrophobic acrylate containing polymer should contain less than 5 weight percent of hydrophilic monomers.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: October 20, 1998
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Philip Yung-Chin Yang