Patents by Inventor Kouichi Shishido

Kouichi Shishido 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).

  • Powder of vinyl polymer containing silicone polymer and method for producing the same, resin composition, and shaped article
    Patent number: 8497323
    Abstract: Disclosed is a method for producing powder of a vinyl polymer containing a silicone polymer, which comprises the step of spray-drying a latex of the vinyl polymer containing a silicone polymer obtained by polymerization of a vinyl monomer in the presence of a latex of the silicone polymer, wherein 3.0 mmol or less of a sulfate is contained in 100 g of the powder of a vinyl polymer containing a silicone polymer. According to the present invention, a powder which can provide a shaped article excellent in impact resistance and hydrolysis resistance in the case when the powder is blended in a resin such as polycarbonate resin can be obtained.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: July 30, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Ayaka Wakita, Toshihiro Kasai, Kouichi Shishido
  • POWDER OF VINYL POLYMER CONTAINING SILICONE POLYMER AND METHOD FOR PRODUCING THE SAME, RESIN COMPOSITION, AND SHAPED ARTICLE
    Publication number: 20110160401
    Abstract: Disclosed is a method for producing powder of a vinyl polymer containing a silicone polymer, which comprises the step of spray-drying a latex of the vinyl polymer containing a silicone polymer obtained by polymerization of a vinyl monomer in the presence of a latex of the silicone polymer, wherein 3.0 mmol or less of a sulfate is contained in 100 g of the powder of a vinyl polymer containing a silicone polymer. According to the present invention, a powder which can provide a shaped article excellent in impact resistance and hydrolysis resistance in the case when the powder is blended in a resin such as polycarbonate resin can be obtained.
    Type: Application
    Filed: August 27, 2009
    Publication date: June 30, 2011
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Ayaka Wakita, Toshihiro Kasai, Kouichi Shishido