Patents by Inventor Shinji Koube

Shinji Koube 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).

  • Polyester plasticizer and chlorine-containing resin compositions
    Patent number: 7348380
    Abstract: A polyester plasticizer which is obtained by reacting a diol component (a) consisting of 100 parts by mole of 2-methyl-1,3-propanediol, 10 to 1000 parts by mole of 3-methyl-1,5-pentanediol and 0 to 1000 parts by mole of other aliphatic diol with an organic dicarboxylic acid components (b) consisting of 100 parts by mole of adipic acid and 0 to 100 parts by mole of other organic dicarboxylic acid and a chain terminator (c) consisting of a monovalent aliphatic alcohol or a monovalent aliphatic organic acid and which has an average molecular weight of 500 to 5000. This plasticizer is excellent in plasticizing efficiency and can impart excellent oil resistance to synthetic resins such as chlorine-containing resins.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: March 25, 2008
    Assignee: Adeka Corporation
    Inventors: Shinji Koube, Kiyotatsu Iwanami, Teruo Arai, Tomoki Honda
  • Polyester plasticizer and chlorine-containing resin compositions
    Publication number: 20060025544
    Abstract: A polyester plasticizer which is obtained by reacting a diol component (a) consisting of 100 parts by mole of 2-methyl-1,3-propanediol, 10 to 1000 parts by mole of 3-methyl-1,5-pentanediol and 0 to 1000 parts by mole of other aliphatic diol with an organic dicarboxylic acid components (b) consisting of 100 parts by mole of adipic acid and 0 to 100 parts by mole of other organic dicarboxylic acid and a chain terminator (c) consisting of a monovalent aliphatic alcohol or a monovalent aliphatic organic acid and which has an average molecular weight of 500 to 5000. This plasticizer is excellent in plasticizing efficiency and can impart excellent oil resistance to synthetic resins such as chlorine-containing resins.
    Type: Application
    Filed: October 29, 2003
    Publication date: February 2, 2006
    Applicant: ASAHI DENKA CO., LTD
    Inventors: Shinji Koube, Kiyotatsu Iwanami, Teruo Arai, Tomoki Honda
  • Method for optical resolution of 2-(4-chlorophenyl)-3-methylbutanoic acid
    Patent number: 4376213
    Abstract: A method for optical resolution of 2-(4-chlorophenyl)-3-methylbutanoic acid, which comprises crystallizing out the salt between (+) or (-)-2-(4-chlorophenyl)-3-methylbutanoic acid and diethylamine in a molar proportion of 2:1 predominantly from a super-saturated solution of the salt of 2-(4-chlorophenyl)-3-methylbutanoic acid with diethylamine, collecting the crystallized salt and decomposing the collected salt under acidic conditions to obtain the corresponding optically active acid.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: March 8, 1983
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroyuki Nohira, Daiyo Terunuma, Shinji Koube