Patents by Inventor Hee Chung Park

Hee Chung Park 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).

  • Thermoplastic films coated with acrylic polymer
    Patent number: 4981758
    Abstract: A coating composition for application to a thermoplastic film, such as polypropylene film, the coated film and the method for coating the film are disclosed. The coating composition includes an acrylic copolymer, a slip agent and, optionally, a water dispersible wax. The acrylic copolymer can be an emulsion or a solution. The acrylic copolymer preferably includes at least 5 weight percent of a polar, functional comonomer; has an average molecular weight of at least about 10,000; and has a glass transition temperature of about 30.degree. C. to about 100.degree. C.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: January 1, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Shaw-Chang Chu, Hee Chung Park, Robert E. Touhsaent