Patents by Inventor Noriyuki Shimoyama

Noriyuki Shimoyama 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).

  • Stabilizer compositions for polyvinyl chloride resins and stabilized polyvinyl chloride resin compositions
    Patent number: 4957954
    Abstract: Polyvinyl chloride resin stabilizer compositions are provided, comprising a 2,2,6,6-tetramethyl piperidinyl compound and an ammonium or metal perchlorate; and also stabilized polyvinyl chloride resin compositions containing such stabilizers, and optionally including a plasticizer, and particularly as molded articles with polyurethane foam backing.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: September 18, 1990
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Shunichi Iizuka, Yoshiyuki Sakamaki, Noriyuki Shimoyama