Patents by Inventor Mituyosi OHATA

Mituyosi OHATA 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).

  • Patent number: 10173958
    Abstract: A method for producing a multibranched aliphatic ester including reacting a multibranched aliphatic alcohol with a multibranched aliphatic carboxylic acid in the absence of a solvent without a catalyst to obtain a multibranched aliphatic ester, and distilling the multibranched aliphatic ester to obtain a purified multibranched aliphatic ester, wherein at least one of the alcohol and the carboxylic acid is a C10-30 compound, and the obtained ester has a Hazen color number (APHA) of 1 to 30. Each of the multibranched aliphatic alcohol and the multibranched carboxylic acid has a tertiary carbon atom and/or a quaternary carbon atom in the molecule and in which the total number of the tertiary carbon atom and/or the quaternary carbon atom in the molecule is 2 or more. The method wherein the reaction is caused at 180 to 300° C. The method wherein a monohydric alcohol and a monovalent carboxylic acid are used.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: January 8, 2019
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Nobuyuki Kakiuchi, Takaomi Fushimi, Mituyosi Ohata
  • Publication number: 20170197902
    Abstract: A method for producing a multibranched aliphatic ester including reacting a multibranched aliphatic alcohol with a multibranched aliphatic carboxylic acid in the absence of a solvent without a catalyst to obtain a multibranched aliphatic ester, and distilling the multibranched aliphatic ester to obtain a purified multibranched aliphatic ester, wherein at least one of the alcohol and the carboxylic acid is a C10-30 compound, and the obtained ester has a Hazen color number (APHA) of 1 to 30. Each of the multibranched aliphatic alcohol and the multibranched carboxylic acid has a tertiary carbon atom and/or a quaternary carbon atom in the molecule and in which the total number of the tertiary carbon atom and/or the quaternary carbon atom in the molecule is 2 or more. The method wherein the reaction is caused at 180 to 300° C. The method wherein a monohydric alcohol and a monovalent carboxylic acid are used.
    Type: Application
    Filed: May 20, 2015
    Publication date: July 13, 2017
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Nobuyuki KAKIUCHI, Takaomi FUSHIMI, Mituyosi OHATA