Patents by Inventor Takaaki Sugimura

Takaaki Sugimura 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).

  • Preparation process of chlorinated rubber
    Patent number: 5350809
    Abstract: Disclosed herein is a process for the preparation of a chlorinated rubber, wherein chlorine gas is caused to act on a polyisoprene rubber to prepare the chlorinated rubber. Chlorine gas is blown into a high-acidity aqueous dispersion of the polyisoprene rubber to chlorinate the polyisoprene rubber, whereby a chlorinated isoprene rubber with high performance is prepared stably in an aqueous medium.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: September 27, 1994
    Assignee: Asahi Denka Kogyo K.K.
    Inventors: Hiroshi Tsuchiya, Makoto Kokura, Yutaka Ozawa, Takaaki Sugimura
  • Peel-up type adhesives
    Patent number: 4350723
    Abstract: A peel-up type adhesive having a viscosity of 50 to 5,000 poises and comprising a rubber latex or a resin emulsion containing a polymeric substance which is film-forming at room temperature, and 1 to 200 parts by weight, per 100 parts by weight of the solid polymeric substance content of the rubber latex or resin emulsion, of a fibrous material.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: September 21, 1982
    Assignee: Nippon Zeon Co. Ltd.
    Inventors: Takaaki Sugimura, Yutaka Ozawa, Mari Takahashi