Patents by Inventor Shigeo Nishiguchi

Shigeo Nishiguchi 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).

  • Publication number: 20060211831
    Abstract: A coated article is obtained by electrodeposition coating using an electrodeposition coating composition, which comprises: (A) a resin component obtained by reacting an epoxy resin, an amino compound and/or a phenolic compound; (B) a resin component having a specific structural unit; (C) a blocked polyisocyanate compound; and (D) at least one rust inhibiting component selected from the group consisting of metal ions selected from zirconium, titanium, cobalt, vanadium, tungsten and molybdenum, oxymetal ions of the metal, and fluorometal ions of the metal.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 21, 2006
    Applicant: KANSAI PAINT CO. LTD.
    Inventors: Shigeo Nishiguchi, Masaharu Shimoda, Tadayoshi Hiraki, Koji Kamikada
  • Patent number: 7045575
    Abstract: A cationic electro-deposition coating composition, comprises: Component (A): an amino-containing epoxy resin (A) obtained by adding an amino-containing compound (a-2) to an epoxy resin (a-1) having an epoxy equivalent of from 400 to 3000, Component (B): an amino-containing acrylic resin (B) obtained by adding an amino-containing compound (b-4) to a copolymer resin obtained by radical copolymerization of, as essential components, a polylactone-modified hydroxyl-containing radical copolymerizable monomer (b-1), which is obtained by adding a lactone to a hydroxyl-containing acrylic monomer (b), and glycidyl (meth)acrylate (b-2), and another radical copolymerizable monomer (b-3); and Component (C): a blocked polyisocyanate curing agent (C) as a curing component, the component (A), component (B) and component (C) being added in amounts of 5 to 80 wt %, 5 to 80 wt % and 10 to 40 wt %, respectively, based on the total solid content of the components (A), (B) and (C).
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: May 16, 2006
    Assignee: Kansai Paint Co. Ltd.
    Inventors: Hidenori Sawada, Hideki Iijima, Shigeo Nishiguchi, Koji Kamikado
  • Patent number: 6942922
    Abstract: The present invention provides a cationic paint composition containing, as a vehicle component, a xylene-formaldehyde resin-modified amino group-containing epoxy resin obtained by reacting an epoxy resin having an epoxy equivalent of 180 to 2,500 with an alkyl phenol and/or a carboxylic acid, a xylene-formaldehyde resin, and an amino group-containing compound.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: September 13, 2005
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Hidenori Sawada, Hideki Iijima, Koji Kamikado
  • Publication number: 20050067284
    Abstract: A cationic coating composition containing (A) an unsaturated group-modified blocked polyisocyanate crosslinking agent obtained by reacting a hydroxyl group-containing unsaturated compound (a), a blocking agent (b) and a polyisocyanate compound (c), (B) a cationic epoxy resin, and (C) a photopolymerization initiator, preferably further containing a polymerizable unsaturated group-containing compound (D).
    Type: Application
    Filed: September 23, 2004
    Publication date: March 31, 2005
    Inventors: Shigeo Nishiguchi, Akihiko Shimasaki, Hideki Iijima, Koji Kamikado, Tadayoshi Hiraki
  • Publication number: 20040137166
    Abstract: A cationic coating composition containing (A) an unsaturated group-modified cationic epoxy resin, (B) a blocked polyisocyanate crosslinking agent, and (C) a photopolymerization initiator, preferably further containing a polymerizable unsaturated group-containing compound (D).
    Type: Application
    Filed: November 26, 2003
    Publication date: July 15, 2004
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Hideki Iijima, Akihiko Shimasaki, Tadayoshi Hiraki
  • Patent number: 6761973
    Abstract: The present invention provides a cationic resin composition comprising a cationic resin (A) and a blocked polyisocyanate (B) obtained by reacting an active hydrogen-containing component comprising a diol (a) which has two hydroxyl groups having different reactivities from each other and which has a molecular weight of 76 to 150 and a carboxyl group-containing diol (b) having a molecular weight of 106 to 500 with a polyisocyanate compound (c).
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: July 13, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Souichi Ikejiri, Hideki Iijima
  • Patent number: 6734260
    Abstract: The present invention provides a cationic coating composition capable of forming a coating film which is excellent in an electrodepositablly coating property and an adhesive property toward a rust preventive steel plate, a corrosion resistance and a low temperature curability. The cationic coating composition described above comprises as a vehicle component, a xylene-formaldehyde resin-modified, amino group-containing epoxy resin obtained by reacting an epoxy resin (A) having an epoxy equivalent of 180 to 2500 with a xylene-formaldehyde resin (B) and an amino group-containing compound (C).
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: May 11, 2004
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga, Akihiko Shimasaki, Hideki Iijima
  • Patent number: 6660385
    Abstract: The present invention provides a cationic paint composition containing as resin component a polyol-modified amino group-containing epoxy resin obtained by reacting an epoxy resin with epoxy equivalent 180-2500 with a alkyl phenol and/or a carboxylic acid; a polyol obtained by adding a caprolactone to a compound containing a plurality of active hydrogen groups and an amino group-containing compound.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: December 9, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga
  • Patent number: 6624215
    Abstract: This invention relates to cationic electro-coating composition which comprises blending which an aqueous dispersion or an aqueous dispersion paste which contains an organic acid-modified bismuth compound in a non-water-soluble state, and which is obtained by mixing and grinding a bismuth compound and an organic acid in an aqueous medium. Said cationic electro-coating composition, although containing no lead compounds, is capable of forming an electrocoated film which is excellent in corrosion resistance, appearance, etc.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: September 23, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Tadayoshi Hiraki, Akira Tominaga, Shigeo Nishiguchi, Reiziro Nishida, Fumiaki Nakao, Katsuhisa Sugisaki
  • Publication number: 20030171473
    Abstract: A cationic electro-deposition coating composition, comprises: Component (A): an amino-containing epoxy resin (A) obtained by adding an amino-containing compound (a-2) to an epoxy resin (a-1) having an epoxy equivalent of from 400 to 3000, Component (B): an amino-containing acrylic resin (B) obtained by adding an amino-containing compound (b-4) to a copolymer resin obtained by radical copolymerization of, as essential components, a polylactone-modified hydroxyl-containing radical copolymerizable monomer (b-1), which is obtained by adding a lactone to a hydroxyl-containing acrylic monomer (b), and glycidyl (meth)acrylate (b-2), and another radical copolymerizable monomer (b-3); and Component (C): a blocked polyisocyanate curing agent (C) as a curing component, the component (A), component (B) and component (C) being added in amounts of 5 to 80 wt %, 5 to 80 wt % and 10 to 40 wt %, respectively, based on the total solid content of the components (A), (B) and (C).
    Type: Application
    Filed: February 14, 2003
    Publication date: September 11, 2003
    Inventors: Hidenori Sawada, Hideki Iijima, Shigeo Nishiguchi, Koji Kamikado
  • Publication number: 20030165687
    Abstract: The present invention provides a cationic paint composition containing, as a vehicle component, a xylene-formaldehyde resin-modified amino group-containing epoxy resin obtained by reacting an epoxy resin having an epoxy equivalent of 180 to 2,500 with an alkyl phenol and/or a carboxylic acid, a xylene-formaldehyde resin, and an amino group-containing compound.
    Type: Application
    Filed: February 13, 2003
    Publication date: September 4, 2003
    Inventors: Shigeo Nishiguchi, Hidenori Sawada, Hideki Iijima, Koji Kamikado
  • Publication number: 20030158348
    Abstract: The present invention provides a cationic resin composition comprising a cationic resin (A) and a blocked polyisocyanate (B) obtained by reacting an active hydrogen-containing component comprising a diol (a) which has two hydroxyl groups having different reactivities from each other and which has a molecular weight of 76 to 150 and a carboxyl group-containing diol (b) having a molecular weight of 106 to 500 with a polyisocyanate compound (c).
    Type: Application
    Filed: September 5, 2002
    Publication date: August 21, 2003
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Souichi Ikejiri, Hideki Iijima
  • Publication number: 20030106804
    Abstract: The present invention provides a cationic coating composition capable of forming a coating film which is excellent in an electrodepositablly coating property and an adhesive property toward a rust preventive steel plate, a corrosion resistance and a low temperature curability. The cationic coating composition described above comprises as a vehicle component, a xylene-formaldehyde resin-modified, amino group-containing epoxy resin obtained by reacting an epoxy resin (A) having an epoxy equivalent of 180 to 2500 with a xylene-formaldehyde resin (B) and an amino group-containing compound (C).
    Type: Application
    Filed: November 15, 2002
    Publication date: June 12, 2003
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga, Akihiko Shimasaki, Hideki Iijima
  • Patent number: 6503629
    Abstract: The present invention provides a cationic coating composition capable of forming a coating film which is excellent in a corrosion resistance and an adhesive property and an electrodepositably coating property toward a rust preventive steel plate (zinc-plated steel plate). The cationic coating composition described above comprises as a vehicle component, a polyol-modified, amino group-containing epoxy resin prepared by reacting an epoxy resin (A) having an epoxy equivalent of 180 to 2500 with a polyol compound (B) obtained by adding caprolactone to a compound having plural active hydrogen groups and an amino group-containing compound (C).
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: January 7, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Tadayoshi Hiraki, Akira Tominaga
  • Patent number: 6492027
    Abstract: The present invention provides a cationic resin composition capable of forming a cationically electrodepositable coating film which is excellent in corrosion resistance, an aptitude for the cationic electrodepositable coating of a rust preventive steel plate and in adhesion to substrate, which cationic resin composition is characterized by comprising the following components: (A) an amino group-containing epoxy resin which is prepared by adding an amino group-containing compound to an epoxy resin having an epoxy equivalent of 400 to 3000, (B) a polyol-modified amino group-containing epoxy resin which is prepared by making an epoxy resin having an epoxy equivalent of 180 to 2500 react with an amino group-containing compound and with a polyol compound obtained by adding caprolactone to a compound having plural active hydrogen groups, and (C) a blocked polyisocyanate curing agent, component (A) being 40 to 70% by weight, component (B) being 4 to 40% by weight, and component (C) being 10 to 40% by weight, base
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: December 10, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Tadayoshi Hiraki, Akira Tominaga
  • Patent number: 6489429
    Abstract: There is disclosed a resin composition for electrodeposition paint comprising (A) a resin containing hydroxyl group, and (B) a polyisocyanate compound blocked with an amidoalcohol having at least one amide bond and at least one alcoholic hydroxyl group in the molecule, excellent in storage stability and capable of forming a coating film excellent in low temperature curability.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: December 3, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Sinzi Hirato, Reijiro Nishida
  • Patent number: 6475366
    Abstract: The present invention provides a cationically electro-depositable coating composition comprising as a cross-linking agent, a blocked polyisocyanate having a blocked isocyanate group represented by Formula (I): (wherein R1 represents a hydrogen atom, methyl, ethyl or propyl, and R2 represents methyl or ethyl) or a self cross-linking type base resin having the blocked isocyanate group represented by Formula (I) described above.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: November 5, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shigeo Nishiguchi, Koji Kamikado
  • Publication number: 20020068172
    Abstract: The present invention provides a cationic paint composition containing as resin component a polyol-modified amino group-containing epoxy resin obtained by reacting an epoxy resin with epoxy equivalent 180-2500 with a alkyl phenol and/or a carboxylic acid; a polyol obtained by adding a caprolactone to a compound containing a plurality of active hydrogen groups and an amino group-containing compound.
    Type: Application
    Filed: October 3, 2001
    Publication date: June 6, 2002
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga
  • Patent number: 6355351
    Abstract: The present invention provides a cationically electrodepositable coating composition capable of forming a coating film which is excellent in both of coating film physical properties such as a chipping resistance and an impact resistance and a corrosion resistance. The composition comprises an amine-modified epoxy resin (A) and a blocked polyisocyanate (B), further comprising 5 to 50 parts by weight of a cationic urethane-modified polymer emulsion (C) per 100 parts by weight of the total of the amine-modified epoxy resin (A) and the blocked polyisocyanate (B) in terms of a solid matter.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 12, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Hidenori Sawada, Shigeo Nishiguchi, Koji Kamikado
  • Publication number: 20020010284
    Abstract: The present invention provides a cationic resin composition capable of forming a cationically electrodepositable coating film which is excellent in corrosion resistance, an aptitude for the cationic electrodepositable coating of a rust preventive steel plate and in adhesion to substrate, which cationic resin composition is characterized by comprising the following components:
    Type: Application
    Filed: May 31, 2001
    Publication date: January 24, 2002
    Inventors: Shigeo Nishiguchi, Koji Kamikado, Tadayoshi Hiraki, Akira Tominaga