Patents by Inventor Man-Chium Chang

Man-Chium Chang 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).

  • Emulsion-acrylic pressure-sensitive adhesives formed in two step polymerization
    Patent number: 4564664
    Abstract: Pressure-sensitive adhesives are formed of a diester of fumaric acid, preferably dibutyl fumarate; an alkyl acrylate, preferably 2-ethylhexylacrylate; an alkyl methacrylate, preferably methylmethacrylate; and, desirably, a crosslinkable carboxylic acid. The adhesives are preferably formed in two-stage, free-radical polymerization.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: January 14, 1986
    Assignee: Avery International Corporation
    Inventors: Man-Chium Chang, Chung-Ling Mao, Richard R. Vargas