Patents by Inventor Taichiro Kohashi

Taichiro Kohashi 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: 11365326
    Abstract: The present invention relates to a thermosetting composition characterized in that it contains (A) a polyester resin of number average molecular weight 1,000-10,000, hydroxyl value 5-200 mg KOH/g and, (B) 0.5-2.0 equivalents relative to the hydroxyl groups of the aforesaid component (A) of a compound (B) which is a blocked aliphatic isocyanate compound having reactivity with the hydroxyl groups of component (A), wherein the blocking is with methyl ethyl ketoxime and/or ?-caprolactam, (C) 0.05-5 parts by weight of a bismuth compound, per 100 parts by weight of total resin solids of component (A) and component (B), and (D) 0.5-50 parts by weight of an organosilicate represented by the following general formula (I) and/or a condensation product thereof, relative to 100 parts by weight of total resin solids of component (A) and component (B) wherein R1, R2, R3 and R4 in the formula each mean hydrogen atom or 1-10 carbon organic group, and can be the same or different, n is 1.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: June 21, 2022
    Inventors: Hiroki Mizutani, Takahiro Tsujita, Taichiro Kohashi, Nobuhiro Nishida, Koji Miyabe
  • Patent number: 11214705
    Abstract: [Purpose] To provide a thermosetting composition with which it is possible to obtain paint films which not only display stain resistance for a short period after application, but with which excellent stain resistance can also be expected for longer periods, and which comply with the paint film properties required for painted steel sheet such as water resistance and bending workability, and have high environmental protection and safety qualities. [Solution] The present invention relates to a thermosetting composition, wherein it contains, as essential components, (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5 to 2.0 equivalents, relative to the hydroxyl groups of the aforesaid component (A), of a compound (B) which is a blocked aliphatic polyisocyanate compound having reactivity to the hydroxyl groups of component (A), wherein the blocks are methyl ethyl ketone oxime and/or ?-caprolactam, (C) 0.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: January 4, 2022
    Inventors: Hiroki Mizutani, Takahiro Tsujita, Taichiro Kohashi, Nobuhiro Nishida, Koji Miyabe
  • Publication number: 20190225833
    Abstract: The present invention relates to a thermosetting composition characterized in that it contains (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5-2.0 equivalents relative to the hydroxyl groups of the aforesaid component (A) of a compound (B) which is a blocked aliphatic poly-isocyanate compound having reactivity with the hydroxyl groups of component (A), wherein the blocking is with methyl ethyl ketoxime and/or ?-caprolactam, (C) 0.05-5 parts by weight of a bismuth compound, per 100 parts by weight of total resin solids of component (A) and component (B), and (D) 0.5-50 parts by weight of an organosilicate represented by the following general formula (I) and/or a condensation product thereof, relative to 100 parts by weight of total resin solids of component (A) and component (B), wherein R1, R2, R3 and R4 in the formula each mean hydrogen atom or 1-10 carbon organic group, and can be the same or different, n is 1.
    Type: Application
    Filed: September 4, 2017
    Publication date: July 25, 2019
    Inventors: Hiroki Mizutani, Takahiro Tsujita, Taichiro Kohashi, Nobuhiro Nishida, Koji Miyabe
  • Publication number: 20180265737
    Abstract: [Purpose] To provide a thermosetting composition with which it is possible to obtain paint films which not only display stain resistance for a short period after application, but with which excellent stain resistance can also be expected for longer periods, and which comply with the paint film properties required for painted steel sheet such as water resistance and bending workability, and have high environmental protection and safety qualities. [Solution] The present invention relates to a thermosetting composition, wherein it contains, as essential components, (A) a polyester resin of number average molecular weight 1,000-10,000 and hydroxyl value 5-200 mg KOH/g and, (B) 0.5 to 2.0 equivalents, relative to the hydroxyl groups of the aforesaid component (A), of a compound (B) which is a blocked aliphatic polyisocyanate compound having reactivity to the hydroxyl groups of component (A), wherein the blocks are methyl ethyl ketone oxime and/or ?-caprolactam, (C) 0.
    Type: Application
    Filed: August 24, 2016
    Publication date: September 20, 2018
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Hiroki Mizutani, Takahiro Tsujita, Taichiro Kohashi, Nobuhiro Nishida, Koji Miyabe
  • Patent number: 8222332
    Abstract: A resin composition comprises (A) hydroxyl group containing acrylic resin having a hydroxyl group value of from 5 to 200 mgKOH/g and a number average molecular weight of from 500 to 20,000, (B) hexakisalkoxymethylated melamine resin, (C) de-watering agent, (D) blocked sulfonic acid compound, (E) silicate compound and (F) at least one type of material selected from among (a) organic resin particle of average particle diameter not more than 40 ?m, (b) inorganic glass particles of average particle diameter not more than 100 ?m and (c) inorganic fibers of average length not more than 300 ?m.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: July 17, 2012
    Assignee: BASF Coatings Japan Ltd.
    Inventors: Taichiro Kohashi, Hiroki Mizutani, Yoshitomo Takeuchi, Futoshi Nakanishi
  • Publication number: 20110015318
    Abstract: Disclosed is a resin composition comprising (A) hydroxyl group containing acrylic resin having a hydroxyl group value of from 5 to 200 mgKOH/g and a number average molecular weight of from 500 to 20,000, (B) hexakisalkoxymethylated melamine resin, (C) de-watering agent, (D) blocked sulfonic acid compound which has been blocked with a tertiary amine compound of boiling point from 50 to 300° C. in which the mol ratio with respect to the sulfonic acid is from 0.2 to 0.9, (E) silicate compound and (F) at least one type of material selected from among (a) organic resin particle of average particle diameter not more than 40 ?m, (b) inorganic glass particles of average particle diameter not more than 100 ?m and (c) inorganic fibers of average length not more than 300 ?m.
    Type: Application
    Filed: January 27, 2009
    Publication date: January 20, 2011
    Applicant: BASF COATINGS JAPAN LTD.
    Inventors: Taichiro Kohashi, Hiroki Mizutani, Yoshitomo Takeuchi, Futoshi Nakanishi
  • Publication number: 20100190910
    Abstract: Disclosed is a resin composition which can be used for wrinkle pattern paints having excellent aging stability and staining resistance. The resin composition contains (A) a hydroxyl group containing polyester resin having a hydroxyl group value from 5 to 200 mgKOH/g, (B) hexakis-alkoxymethylated melamine resin, (C) de-watering agent, (D) blocked sulfonic acid compound which has been blocked with a tertiary amine compound of boiling point from 50 to 300° C. where the mol ratio with respect to the sulfonic acid is from 0.2 to 0.9, (E) silicate compound and (F) at least one material selected from among (a) organic resin particles of average particle diameter not more than 40 ?m, (b) inorganic glass particles of average particle diameter not more than 100 ?m and (c) inorganic fibers of average length not more than 300 ?m.
    Type: Application
    Filed: February 27, 2008
    Publication date: July 29, 2010
    Applicant: BASF COATINGS JAPAN LTD.
    Inventors: Taichiro Kohashi, Hiroki Mizutani, Yoshitomo Takeuchi, Futoshi Nakanishi