Patents by Inventor Kunio Chikanishi

Kunio Chikanishi 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).

  • Molded articles of plastics having improved surface characteristics and process for producing the same
    Patent number: 3968309
    Abstract: A molded article of plastic having on its surface a cured film of a coating material comprising at least 30% by weight of at least one polyfunctional compound selected from the group consisting of poly-methacryloyloxy compounds having a molecular weight of 250 to 800 and containing at least three methacryloyloxy groups in the molecule and poly-acryloyloxy compounds having a molecular weight of 250 to 800 and containing at least three acryloyloxy groups in the molecule, and optionally 0.01 to 5% by weight of a fluorine-containing surfactant and 0.01 to 5% by weight of a carbonyl compound as photosensitizer has improved surface characteristics, particularly a high surface hardness, a high surface smoothness, high heat resistance, high abrasion resistance and a minimized optical distortion. Said molded article of plastic having improved surface characteristics can be prepared by coating the molded substrate of plastic with said coating material to a thickness of 1 to 50.mu.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: July 6, 1976
    Assignees: Dainippon Printing Co., Ltd., Mitsubishi Rayon Co., Ltd.
    Inventors: Makoto Matsuo, Takao Suzuki, Keisuke Yoshihara, Tuneo Ikeda, Kunio Chikanishi