Patents by Inventor Takaaki Murahashi

Takaaki Murahashi 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).

  • Aqueous emulsion and production method thereof
    Patent number: 8722822
    Abstract: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 ?m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: May 13, 2014
    Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Mitsuo Shibutani, Masahiro Saito, Shusaku Mandai, Takaaki Murahashi
  • AQUEOUS EMULSION AND PRODUCTION METHOD THEREOF
    Publication number: 20100261830
    Abstract: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 ?m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.
    Type: Application
    Filed: November 26, 2008
    Publication date: October 14, 2010
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Mitsuo Shibutani, Masahiro Saito, Shusaku Mandai, Takaaki Murahashi