Patents by Inventor Yoshijiro Saito

Yoshijiro Saito 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 resin of hydrolyzed product of vinyl chloride copolymer for use in coating resin and process for preparing such resin
    Patent number: 4277388
    Abstract: According to the invention there are provided a thermoplastic resin for use in a coating resin, and a process for preparing such resin, said thermoplastic resin being a hydrolyzed product of a vinyl chloride copolymer obtained by polymerizing 50 to 80% by weight of a vinyl chloride monomer, 20 to 40% by weight of a vinyl ester monomer and 0 to 15% by weight of a comonomer polymerizable with the vinyl chloride monomer, said vinyl chloride copolymer having an average polymerization degree of 200 to 800 and said hydrolyzed product having an absorption ratio of OH/CH in the infrared absorption spectrum of from 0.5 to 0.9.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: July 7, 1981
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshio Kagami, Yoshijiro Saito, Shigeru Matsushita, Kunio Iriuchijima