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).
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Publication number: 20060211831Abstract: 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: ApplicationFiled: March 15, 2006Publication date: September 21, 2006Applicant: KANSAI PAINT CO. LTD.Inventors: Shigeo Nishiguchi, Masaharu Shimoda, Tadayoshi Hiraki, Koji Kamikada
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Patent number: 7045575Abstract: 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: GrantFiled: February 14, 2003Date of Patent: May 16, 2006Assignee: Kansai Paint Co. Ltd.Inventors: Hidenori Sawada, Hideki Iijima, Shigeo Nishiguchi, Koji Kamikado
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Patent number: 6942922Abstract: 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: GrantFiled: February 13, 2003Date of Patent: September 13, 2005Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Hidenori Sawada, Hideki Iijima, Koji Kamikado
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Publication number: 20050067284Abstract: 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: ApplicationFiled: September 23, 2004Publication date: March 31, 2005Inventors: Shigeo Nishiguchi, Akihiko Shimasaki, Hideki Iijima, Koji Kamikado, Tadayoshi Hiraki
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Publication number: 20040137166Abstract: 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: ApplicationFiled: November 26, 2003Publication date: July 15, 2004Inventors: Shigeo Nishiguchi, Koji Kamikado, Hideki Iijima, Akihiko Shimasaki, Tadayoshi Hiraki
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Patent number: 6761973Abstract: 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: GrantFiled: September 5, 2002Date of Patent: July 13, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado, Souichi Ikejiri, Hideki Iijima
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Patent number: 6734260Abstract: 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: GrantFiled: November 15, 2002Date of Patent: May 11, 2004Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga, Akihiko Shimasaki, Hideki Iijima
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Patent number: 6660385Abstract: 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: GrantFiled: October 3, 2001Date of Patent: December 9, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga
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Patent number: 6624215Abstract: 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: GrantFiled: June 12, 2000Date of Patent: September 23, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Tadayoshi Hiraki, Akira Tominaga, Shigeo Nishiguchi, Reiziro Nishida, Fumiaki Nakao, Katsuhisa Sugisaki
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Publication number: 20030171473Abstract: 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: ApplicationFiled: February 14, 2003Publication date: September 11, 2003Inventors: Hidenori Sawada, Hideki Iijima, Shigeo Nishiguchi, Koji Kamikado
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Publication number: 20030165687Abstract: 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: ApplicationFiled: February 13, 2003Publication date: September 4, 2003Inventors: Shigeo Nishiguchi, Hidenori Sawada, Hideki Iijima, Koji Kamikado
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Publication number: 20030158348Abstract: 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: ApplicationFiled: September 5, 2002Publication date: August 21, 2003Inventors: Shigeo Nishiguchi, Koji Kamikado, Souichi Ikejiri, Hideki Iijima
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Publication number: 20030106804Abstract: 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: ApplicationFiled: November 15, 2002Publication date: June 12, 2003Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga, Akihiko Shimasaki, Hideki Iijima
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Patent number: 6503629Abstract: 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: GrantFiled: December 22, 2000Date of Patent: January 7, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado, Tadayoshi Hiraki, Akira Tominaga
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Patent number: 6492027Abstract: 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, baseType: GrantFiled: May 31, 2001Date of Patent: December 10, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado, Tadayoshi Hiraki, Akira Tominaga
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Patent number: 6489429Abstract: 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: GrantFiled: June 12, 2001Date of Patent: December 3, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Sinzi Hirato, Reijiro Nishida
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Patent number: 6475366Abstract: 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: GrantFiled: November 21, 2000Date of Patent: November 5, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Shigeo Nishiguchi, Koji Kamikado
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Publication number: 20020068172Abstract: 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: ApplicationFiled: October 3, 2001Publication date: June 6, 2002Inventors: Shigeo Nishiguchi, Koji Kamikado, Susumu Midogochi, Akira Tominaga
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Patent number: 6355351Abstract: 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: GrantFiled: February 16, 2001Date of Patent: March 12, 2002Assignee: Kansai Paint Co., Ltd.Inventors: Hidenori Sawada, Shigeo Nishiguchi, Koji Kamikado
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Publication number: 20020010284Abstract: 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: ApplicationFiled: May 31, 2001Publication date: January 24, 2002Inventors: Shigeo Nishiguchi, Koji Kamikado, Tadayoshi Hiraki, Akira Tominaga