Patents by Inventor Akinori Nagai
Akinori Nagai 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: 20220154014Abstract: This invention provides a cationic electrodeposition paint composition comprising an amino-group-containing epoxy resin (A), a blocked polyisocyanate compound (B), and a modified imidazole (C) having a specific structure, wherein the cationic electrodeposition paint composition satisfies the following (i) or (ii), or both: (i) the cationic electrodeposition paint composition further comprises a rust inhibitor (D) or (ii) a blocking agent (b-2) of the blocked polyisocyanate compound (B) is an oxime-based compound (b-2-1) and/or a pyrazole-based compound (b-2-2).Type: ApplicationFiled: March 18, 2020Publication date: May 19, 2022Applicant: KANSAI PAINT CO., LTD.Inventors: Akinori NAGAI, Tomoya KIMURA, Kenichiro MATSUNAGA
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Patent number: 10865319Abstract: A method for producing an acrylic resin-coated silica particle dispersion by (1), mixing and heating silica particles (A), an organic solvent (B) and a monomer having a polymerizable unsaturated group and a hydrolyzable silyl group (C) to obtain a polymerizable unsaturated group-containing silica particle dispersion (i), (2) adding a tertiary amine (D) with a molecular weight of 120 to 380 and having a terminal alkyl and/or aryl group, to the component (i) dispersion, to obtain a polymerizable unsaturated group-containing silica particle dispersion (ii), and (3) reacting the component (ii) dispersion with a polymerizable unsaturated monomer (E), in a solid mass ratio of (ii):(E)=20:80 to 90:10, to obtain an acrylic resin-coated silica particle dispersion.Type: GrantFiled: September 8, 2016Date of Patent: December 15, 2020Assignee: KANSAI PAINT CO., LTD.Inventors: Kazuya Watanabe, Akinori Nagai
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Patent number: 10472537Abstract: There is provided a coating composition with excellent storage stability, and with excellent mar resistance for obtained coating films. The coating composition comprises a hydroxyl group-containing resin (A), a curing agent (B) and a dispersion of acrylic resin-coated silica particles (C), the dispersion of acrylic resin-coated silica particles (C) being an acrylic resin-coated silica particle dispersion obtained by reacting silica particles with a polymerizable unsaturated group (c1) and a polymerizable unsaturated monomer (c2) in a mass ratio of (c1):(c2)=20:80 to 90:10, the polymerizable unsaturated monomer (c2) including a specific polymerizable unsaturated monomer (c2-1) as at least a portion of its components, and the molecular weight of the resin covering the silica particles being 400 to 6000.Type: GrantFiled: September 8, 2016Date of Patent: November 12, 2019Assignee: KANSAI PAINT CO. LTD.Inventors: Kazuya Watanabe, Akinori Nagai
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Publication number: 20180265730Abstract: There is provided a coating composition with excellent storage stability, and with excellent mar resistance for obtained coating films. The coating composition comprises a hydroxyl group-containing resin (A), a curing agent (B) and a dispersion of acrylic resin-coated silica particles (C), the dispersion of acrylic resin-coated silica particles (C) being an acrylic resin-coated silica particle dispersion obtained by reacting silica particles with a polymerizable unsaturated group (c1) and a polymerizable unsaturated monomer (c2) in a mass ratio of (c1):(c2)=20:80 to 90:10, the polymerizable unsaturated monomer (c2) including a specific polymerizable unsaturated monomer (c2-1) as at least a portion of its components, and the molecular weight of the resin covering the silica particles being 400 to 6000.Type: ApplicationFiled: September 8, 2016Publication date: September 20, 2018Applicant: KANSAI PAINT CO. LTD.Inventors: Kazuya WATANABE, Akinori NAGAI
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Publication number: 20180265717Abstract: Production of an acrylic resin-coated silica particle dispersion that has excellent storage stability, when added to a coating material produces a coating film with excellent mar resistance: mixing and heating silica particles (A), an organic solvent (B) and a monomer having a polymerizable unsaturated group and a hydrolyzable silyl group (C) to obtain a polymerizable unsaturated group-containing silica particle dispersion (i), adding a tertiary amine (D) with a molecular weight of 120 to 380 and having a terminal alkyl and/or aryl group, to the component (i) dispersion, to obtain a polymerizable unsaturated group-containing silica particle dispersion (ii), reacting the component (ii) dispersion with a polymerizable unsaturated monomer (E), in a solid mass ratio of (ii):(E)=20:80 to 90:10, to obtain an acrylic resin-coated silica particle dispersion.Type: ApplicationFiled: September 8, 2016Publication date: September 20, 2018Applicant: KANSAI PAINT CO., LTD.Inventors: Kazuya WATANABE, Akinori NAGAI
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Patent number: 9683074Abstract: An object of the present invention is to provide a coating composition that has excellent storage stability, achieves water and oil repellency over a long period of time, and has excellent chemical resistance and processability. To achieve this object, the present invention provides a copolymer resin (A) comprising, as constituent components, a polybasic acid component (a1); a compound (a2) containing at least one member selected from a secondary-hydroxyl-group-containing polyhydric alcohol component (a21) and a compound (a22), which generates one or more secondary hydroxyl groups by reaction with one or more carboxyl groups; and a specific fluorine-containing diol (f), the component (f) being used in a proportion of 0.1 to 30 mass %, based on the total mass of the constituent components.Type: GrantFiled: December 26, 2014Date of Patent: June 20, 2017Assignee: KANSAI PAINT CO., LTD.Inventors: Chikara Kawamura, Akinori Nagai
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Publication number: 20170058080Abstract: An object of the present invention is to provide a coating composition that has excellent storage stability, achieves water and oil repellency over a long period of time, and has excellent chemical resistance and processability. To achieve this object, the present invention provides a copolymer resin (A) comprising, as constituent components, a polybasic acid component (a1); a compound (a2) containing at least one member selected from a secondary-hydroxyl-group-containing polyhydric alcohol component (a21) and a compound (a22), which generates one or more secondary hydroxyl groups by reaction with one or more carboxyl groups; and a specific fluorine-containing diol (f), the component (f) being used in a proportion of 0.1 to 30 mass %, based on the total mass of the constituent components.Type: ApplicationFiled: December 26, 2014Publication date: March 2, 2017Applicant: KANSAI PAINT CO., LTD.Inventors: Chikara KAWAMURA, Akinori NAGAI
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Patent number: 9138778Abstract: The present invention provides a method of forming a multi-layered coating film including the steps of (1) forming an undercoating film using an undercoating composition (I), and (2) forming a top coating film on the undercoating film after the formation of the undercoating film, the top coating film being formed using an active energy ray-curable top coating composition (II) containing a silsesquioxane compound (a) and a photoinitiator (b), the silsesquioxane compound (a) containing one or more organic groups each directly bonded to a silicone atom, and at least one of the organic groups having one or more urethane bonds and one (meth)acryloyloxy group.Type: GrantFiled: April 14, 2011Date of Patent: September 22, 2015Assignee: KANSAI PAINT CO., LTD.Inventors: Atsuya Kato, Akinori Nagai
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Patent number: 8889759Abstract: An object to be attained by the present invention is to provide an active energy ray-curable composition that is capable of producing a cured coating film having high scratch resistance and excellent transparency. The present invention relates to an active energy ray-curable composition containing a reactive particle (A) obtained by reacting a silica fine particle (a-1) and a hydrolysable silane (a-2) having one or more (meth)acryloyloxy groups and one or more isocyanurate ring structures in a molecule. The present invention also provides the active energy ray-curable composition according to the above, containing a photopolymerization initiator (B).Type: GrantFiled: January 5, 2011Date of Patent: November 18, 2014Assignee: Kansai Paint Co., Ltd.Inventors: Yoshinari Matsuura, Akinori Nagai, Atsuya Kato
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Patent number: 8784947Abstract: To provide a composition comprising a silsesquioxane compound that is capable of producing a coating film with excellent heat resistance and scratch resistance, and that has excellent compatibility with general polymerizable unsaturated compounds as well as polymerizable unsaturated compounds with high polarity. A silsesquioxane compound comprising organic groups each directly attached to a silicon atom of the compound, at least one of the organic groups being an organic group having one or more urethane bonds and one (meth)acryloyloxy group.Type: GrantFiled: October 3, 2013Date of Patent: July 22, 2014Assignee: Kansai Paint Co., Ltd.Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
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Publication number: 20140030441Abstract: To provide a composition comprising a silsesquioxane compound that is capable of producing a coating film with excellent heat resistance and scratch resistance, and that has excellent compatibility with general polymerizable unsaturated compounds as well as polymerizable unsaturated compounds with high polarity. A silsesquioxane compound comprising organic groups each directly attached to a silicon atom of the compound, at least one of the organic groups being an organic group having one or more urethane bonds and one (meth)acryloyloxy group.Type: ApplicationFiled: October 3, 2013Publication date: January 30, 2014Applicant: Kansai Paint Co., Ltd.Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
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Patent number: 8575383Abstract: To provide a composition comprising a silsesquioxane compound that is capable of producing a coating film with excellent heat resistance and scratch resistance, and that has excellent compatibility with general polymerizable unsaturated compounds as well as polymerizable unsaturated compounds with high polarity. A silsesquioxane compound comprising organic groups each directly attached to a silicon atom of the compound, at least one of the organic groups being an organic group having one or more urethane bonds and one (meth)acryloyloxy group.Type: GrantFiled: September 9, 2009Date of Patent: November 5, 2013Assignee: Kansai Paint Co., Ltd.Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
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Publication number: 20130029159Abstract: The present invention provides a method of forming a multi-layered coating film including the steps of (1) forming an undercoating film using an undercoating composition (I), and (2) forming a top coating film on the undercoating film after the formation of the undercoating film, the top coating film being formed using an active energy ray-curable top coating composition (II) containing a silsesquioxane compound (a) and a photoinitiator (b), the silsesquioxane compound (a) containing one or more organic groups each directly bonded to a silicone atom, and at least one of the organic groups having one or more urethane bonds and one (meth)acryloyloxy group.Type: ApplicationFiled: April 14, 2011Publication date: January 31, 2013Applicant: KANSAI PAINT CO., LTD.Inventors: Atsuya Kato, Akinori Nagai
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Publication number: 20120296001Abstract: An object to be attained by the present invention is to provide an active energy ray-curable composition that is capable of producing a cured coating film having high scratch resistance and excellent transparency. The present invention relates to an active energy ray-curable composition containing a reactive particle (A) obtained by reacting a silica fine particle (a-1) and a hydrolysable silane (a-2) having one or more (meth)acryloyloxy groups and one or more isocyanurate ring structures in a molecule. The present invention also provides the active energy ray-curable composition according to the above, containing a photopolymerization initiator (B).Type: ApplicationFiled: January 5, 2011Publication date: November 22, 2012Inventors: Yoshinari Matsuura, Akinori Nagai, Atsuya Kato
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Publication number: 20110196059Abstract: To provide a composition comprising a silsesquioxane compound that is capable of producing a coating film with excellent heat resistance and scratch resistance, and that has excellent compatibility with general polymerizable unsaturated compounds as well as polymerizable unsaturated compounds with high polarity. A silsesquioxane compound comprising organic groups each directly attached to a silicon atom of the compound, at least one of the organic groups being an organic group having one or more urethane bonds and one (meth)acryloyloxy group.Type: ApplicationFiled: September 9, 2009Publication date: August 11, 2011Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
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Publication number: 20110160330Abstract: An object of the present invention is to provide a silsesquioxane compound that is capable of producing a coating film with excellent heat resistance and scratch resistance, and that has excellent compatibility with general polymerizable unsaturated compounds as well as polymerizable unsaturated compounds with high polarity. The present invention provides a silsesquioxane compound comprising organic groups each directly bonded to a silicon atom of the compound, at least one of the organic groups being an organic group having one or more secondary hydroxyl groups and one (meth)acryloyloxy group.Type: ApplicationFiled: August 12, 2009Publication date: June 30, 2011Inventors: Akinori Nagai, Masami Kobata, Osamu Isozaki
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Patent number: 7077895Abstract: The present invention provides a coating composition for forming a titanium oxide film, comprising (A) a specific titanium-containing aqueous liquid and (B) at least one compound selected from the group consisting of organic acids and their salts. The present invention also provides a process for forming a titanium oxide film using the coating composition, and a metal substrate coated therewith.Type: GrantFiled: October 17, 2002Date of Patent: July 18, 2006Assignee: Kansai Paint Co., Ltd.Inventors: Jun Akui, Akinori Nagai, Yasuhiko Haruta, Osamu Isozaki
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Publication number: 20050205165Abstract: The present invention provides a coating composition for forming a titanium oxide film, comprising (A) a specific titanium-containing aqueous liquid and (B) at least one compound selected from the group consisting of organic acids and their salts. The present invention also provides a process for forming a titanium oxide film using the coating composition, and a metal substrate coated therewith.Type: ApplicationFiled: April 19, 2005Publication date: September 22, 2005Applicant: KANSAIPAINT CO., LTD.Inventors: Jun Akui, Akinori Nagai, Yasuhiko Haruta, Osamu Isozaki
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Publication number: 20040244648Abstract: The present invention provides a coating composition for forming a titanium oxide film, comprising (A) a specific titanium-containing aqueous liquid and (B) at least one compound selected from the group consisting of organic acids and their salts. The present invention also provides a process for forming a titanium oxide film using the coating composition, and a metal substrate coated therewith.Type: ApplicationFiled: April 22, 2004Publication date: December 9, 2004Inventors: Jun Akui, Akinori Nagai, Yasuhiko Haruta, Osamu Isozaki
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Patent number: 4178795Abstract: A plugging meter for automatically measuring the impurity concentration in a liquid metal is designed to have parallel passages including a cooling passage provided with a plugging orifice and with a flow meter, and a by-pass passage connected in series to a main passage having another flow meter, so that the plugging points may be obtained from the outputs of both flow meters. The plugging meter has a program signal generator, a flow-rate ratio setter and a comparator, and is adapted to change the temperature of the plugging orifice in accordance with a predetermined pattern or gradient, by means of a signal representative of the temperature of plugging orifice and a flow-rate ratio signal obtained from the outputs of both flow meters. This plugging meter affords an automatic and accurate measurement of a multi-plugging phenomenon taking place at the plugging orifice.Type: GrantFiled: September 8, 1977Date of Patent: December 18, 1979Assignee: Doryokuro Kakunenryo Kaihatsu JigyodanInventor: Akinori Nagai