Patents by Inventor Takesaburo Shima

Takesaburo Shima 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).

  • Process for producing thermoplastic resin
    Patent number: 4205019
    Abstract: A process for producing a thermoplastic resin having excellent impact resistance and processability, which comprises: polymerizing an aromatic monovinyl monomer and a vinyl cyanide monomer in the presence of an aqueous elastomeric latex, mixing with agitation the resulting copolymer latex with an aromatic monovinyl monomer and a vinyl cyanide monomer in the presence of a polyalkylene oxide and a coagulant to give a stable suspension phase, and polymerizing the mixture, and said thermoplastic resin thus produced, and a composition comprising said thermoplastic resin and a copolymer produced from an aromatic monovinyl monomer and a vinyl cyanide monomer.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: May 27, 1980
    Assignee: Sumitamo Naugatuck Co., Ltd.
    Inventors: Takesaburo Shima, Hiroshi Kozima, Tomio Yoshida, Joji Nakamura
  • Process for producing thermoplastic resin
    Patent number: 4112021
    Abstract: A process for producing a thermoplastic resin having excellent impact resistance and processability, which comprises polymerizing an aromatic monovinyl monomer and a vinyl cyanide monomer in the presence of an aqueous elastomeric latex, mixing with agitation the resulting copolymer latex with an aromatic monovinyl monomer and a vinyl cyanide monomer in the presence of a polyalkylene oxide and a coagulant to give a stable suspension phase, and polymerizing the mixture, and said thermoplastic resin thus produced, and a composition comprising said thermoplastic resin and a copolymer produced from an aromatic monovinyl monomer and a vinyl cyanide monomer.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: September 5, 1978
    Assignee: Sumitomo Naugatuck Co., Ltd.
    Inventors: Takesaburo Shima, Hiroshi Kozima, Tomio Yoshida, Joji Nakamura