Patents by Inventor Shinya Tsuchiyama

Shinya Tsuchiyama 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 production of isocyanate, isocyanate produced by the process, and use of the isocyanate
    Patent number: 8183407
    Abstract: An isocyanate has been widely used as a starting material for the production of a polyurethane material, a polyisocyanurate material or the like which is suitably applicable to the field of optical materials. Disclosed is a process for producing an isocyanate which includes a step for producing the isocyanate in the form of a hydrochloride with improved productivity. A process for producing a linear or cyclic aliphatic isocyanate comprising the step of reacting a linear or cyclic aliphatic amine with hydrogen chloride to yield a hydrochloride of the linear or cyclic aliphatic amine, the step being performed under a pressure higher by 0.01 MPa or more than the atmospheric pressure.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: May 22, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Chitoshi Shimakawa, Hiroyuki Morijiri, Hidetoshi Hayashi, Norihiko Fukatsu, Seiichi Kobayashi, Homare Yumoto, Junichi Ishiyama, Shinya Tsuchiyama
  • Process for production of isocyanate, isocyanate produced by the process, and use of the isocyanate
    Publication number: 20090124785
    Abstract: An isocyanate has been widely used as a starting material for the production of a polyurethane material, a polyisocyanurate material or the like which is suitably applicable to the field of optical materials. Disclosed is a process for producing an isocyanate which includes a step for producing the isocyanate in the form of a hydrochloride with improved productivity. A process for producing a linear or cyclic aliphatic isocyanate comprising the step of reacting a linear or cyclic aliphatic amine with hydrogen chloride to yield a hydrochloride of the linear or cyclic aliphatic amine, the step being performed under a pressure higher by 0.01 MPa or more than the atmospheric pressure.
    Type: Application
    Filed: July 20, 2006
    Publication date: May 14, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Chitoshi Shimakawa, Hiroyuki Morijiri, Hidetoshi Hayashi, Norihiko Fukatsu, Seiichi Kobayashi, Homare Yumoto, Junichi Ishiyama, Shinya Tsuchiyama