Patents by Inventor Toru Fukazawa

Toru Fukazawa 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).

  • Flame-retardant polypropylene resin composition
    Patent number: 4966931
    Abstract: The present invention disclosed herein is connected with a polypropylene resin composition giving off no corrosive and poisonous gases, having excellent moldability, providing molded articles with excellent mechanical strength and high flame retardance. The composition of the present invention is composed of predetermined amounts of a polypropylene resin, a polyethylene resin, polyammonium phosphate or polyammonium phosphate modified by melamine resin and a 1,3,5-triazine derivative. This composition may additionally contain a predetermined amount of one or more of specific thiophosphites and may further contain a predetermined amount of an olefinic synthetic rubber or elastomer and a crosslinking agent.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: October 30, 1990
    Assignee: Chisso Corporation
    Inventors: Shinichi Akitaya, Toru Fukazawa, Yutaka Nozokido, Nobuchika Tabata