Patents by Inventor Minoru Ishikura
Minoru Ishikura 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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Patent number: 9475957Abstract: The first objective of the present invention is to provide an aqueous paint composition that can form a paint film with excellent smoothness, image clarity, adhesion and water resistance. This aqueous paint is characterized in comprising (A) an aqueous dispersion of an acrylic modified polyester resin, (B) a block polyisocyanate compound having a nonionic hydrophilic group, and (C) an aqueous dispersion of acrylic polymer fine particles.Type: GrantFiled: April 4, 2013Date of Patent: October 25, 2016Assignee: KANSAI PAINT CO., LTD.Inventors: Minoru Ishikura, Takashi Nakayabu, Yuki Yamada, Katsunori Hirai
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Patent number: 9427779Abstract: A method of forming a multilayer coating film with smoothness, distinct image, adhesion and water resistance when a plurality of uncured coating films are cured at once, and especially when cured at low temperature. The method includes the following steps 1-1 to 1-4: step 1-1: coating an article with a primer coating composition (X) and forming an uncured primer coating film on the article, step 1-2: a coating the article having the uncured primer coating film with an aqueous colored coating composition (Y1) for a base coat, to form an uncured base coat film thereover, step 1-3: coating the article having the uncured primer coating film and uncured base coat film, with a clear coating composition (Z), and forming an uncured clear coating film thereover, and step 1-4: a curing the uncured primer coating film, the uncured base coat coating film and the uncured clear coating film by heating.Type: GrantFiled: February 22, 2013Date of Patent: August 30, 2016Assignee: KANSAI PAINT CO., LTD.Inventors: Minoru Ishikura, Takashi Nakayabu, Yuuki Yamada, Masami Kobata
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Patent number: 9404010Abstract: An object of the present invention is to provide a method for forming a multilayer coating film, capable of achieving excellent curability under low-temperature, short-time conditions, and forming a multilayer coating film having excellent chipping resistance and an excellent finished appearance. This method comprises sequentially applying an aqueous first colored coating composition (X), an aqueous second colored coating composition (Y), and a clear coating composition (Z) to a substrate, and simultaneously bake-curing the resulting multilayer coating film. In this method, the aqueous first colored coating composition (X) comprises an aqueous film-forming resin (A) and a specific blocked polyisocyanate compound (B), and the clear coating composition (Z) comprises a hydroxy-containing acrylic resin (K) having a hydroxy value in a specific range, a polyisocyanate compound (L), and an organometallic catalyst (M) containing a metal compound (M1) selected from a specific range and an amidine compound (M2).Type: GrantFiled: June 24, 2013Date of Patent: August 2, 2016Assignee: KANSAI PAINT CO., LTD.Inventors: Naoyuki Iwata, Fumio Yamashita, Minoru Ishikura, Takashi Nakayabu, Kazushi Konishi, Toshiaki Morita, Masami Kobata
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Publication number: 20150232693Abstract: An object to be attained by the present invention is to provide a method for forming a multilayer coating film having excellent smoothness, distinctness of image, water resistance, adhesion, and popping resistance; moreover, the multilayer coating film has excellent water resistance and adhesion, even when the coating compositions are applied after being stored for a fixed period of time. The present invention provides a method for forming a multilayer coating film comprising applying an aqueous first colored coating composition and a second colored coating composition to a substrate in this order, and heating to simultaneously cure the aqueous first colored coating film and the second colored coating film, wherein the aqueous first colored coating composition comprises an acrylic modified polyester resin and a blocked polyisocyanate compound having a specific blocked isocyanate group.Type: ApplicationFiled: September 30, 2013Publication date: August 20, 2015Applicant: KANSAI PAINT CO., LTD.Inventor: Minoru Ishikura
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Publication number: 20150218405Abstract: An object of the present invention is to provide a method for forming a multilayer coating film, capable of achieving excellent curability under low-temperature, short-time conditions, and forming a multilayer coating film having excellent chipping resistance and an excellent finished appearance. This method comprises sequentially applying an aqueous first colored coating composition (X), an aqueous second colored coating composition (Y), and a clear coating composition (Z) to a substrate, and simultaneously bake-curing the resulting multilayer coating film. In this method, the aqueous first colored coating composition (X) comprises an aqueous film-forming resin (A) and a specific blocked polyisocyanate compound (B), and the clear coating composition (Z) comprises a hydroxy-containing acrylic resin (K) having a hydroxy value in a specific range, a polyisocyanate compound (L), and an organometallic catalyst (M) containing a metal compound (M1) selected from a specific range and an amidine compound (M2).Type: ApplicationFiled: June 24, 2013Publication date: August 6, 2015Inventors: Naoyuki Iwata, Fumio Yamashita, Minoru Ishikura, Takashi Nakayabu, Kazushi Konishi, Toshiaki Morita, Masami Kobata
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Publication number: 20150056376Abstract: The first objective of the present invention is to provide an aqueous paint composition that can form a paint film with excellent smoothness, image clarity, adhesion and water resistance. This aqueous paint is characterized in comprising (A) an aqueous dispersion of an acrylic modified polyester resin, (B) a block polyisocyanate compound having a nonionic hydrophilic group, and (C) an aqueous dispersion of acrylic polymer fine particles.Type: ApplicationFiled: April 4, 2013Publication date: February 26, 2015Applicant: KANSAI PAINT CO., LTD.Inventors: Minoru Ishikura, Takashi Nakayabu, Yuki Yamada, Katsunori Hirai
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Publication number: 20150037591Abstract: A method of forming a multilayer coating film with smoothness, distinct image, adhesion and water resistance when a plurality of uncured coating films are cured at once, and especially when cured at low temperature. The method includes the following steps 1-1 to 1-4: step 1-1: coating an article with a primer coating composition (X) and forming an uncured primer coating film on the article, step 1-2: a coating the article having the uncured primer coating film with an aqueous colored coating composition (Y1) for a base coat, to form an uncured base coat film thereover, step 1-3: coating the article having the uncured primer coating film and uncured base coat film, with a clear coating composition (Z), and forming an uncured clear coating film thereover, and step 1-4: a curing the uncured primer coating film, the uncured base coat coating film and the uncured clear coating film by heating.Type: ApplicationFiled: February 22, 2013Publication date: February 5, 2015Applicant: KANSAI PAINT CO., LTD.Inventors: Minoru Ishikura, Takashi Nakayabu, Yuuki Yamada, Masami Kobata
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Patent number: 8216490Abstract: This invention provides an aqueous primer composition which comprises (A) an aqueous dispersion of modified polyolefin which comprises an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 120° C. or lower and a weight average molecular weight of 30,000 to 180,000, dispersed in an aqueous medium, (B) an ionic functional group-containing acrylic resin, and (C) a conductive carbon-containing pigment, and which forms a coating film with an L value of 35 or more and a surface resistivity of 1×108?/? or less.Type: GrantFiled: October 18, 2006Date of Patent: July 10, 2012Assignee: Kansai Paint Co., Ltd.Inventors: Toshiaki Nagano, Yasuyuki Kataoka, Minoru Ishikura, Terutaka Takahashi, Hideo Sugai
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Patent number: 8173744Abstract: This invention provides a water-based primer composition characterized by comprising an aqueous dispersion formed by dispersing unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 50-120° C. and a weight-average molecular weight within a range of 30,000-200,000, and unsaturated carboxylic acid- or acid anhydride-modified polyolefin (b) having a melting point of 30-100° C. and a weight-average molecular weight within a range of 30,000-200,000, in an aqueous medium, the melting point of the modified polyolefin (a) being higher than that of the modified polyolefin (b) by at least 10° C.Type: GrantFiled: February 15, 2007Date of Patent: May 8, 2012Assignee: Kansai Paint Co., Ltd.Inventors: Minoru Ishikura, Toshiaki Nagano, Yasuyuki Kataoka, Terutaka Takahashi, Hideo Sugai
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Patent number: 7897677Abstract: This invention provides a water-based primer composition comprising (A) an aqueous dispersion of modified polyolefin, which is prepared by dispersing a modified polyolefin (a) in an aqueous medium, the polyolefin (a) being produced by modifying an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (i) having a melting point not higher than 120° C. and an weight-average molecular weight within a range of 30,000-200,000, further with a compound having polyoxyalkylene chain; (B) at least one kind of aqueous resin selected from aqueous urethane resin, aqueous acrylic resin and aqueous polyester resin; and (C) pigment; the solid weight ratio of the component (A)/component (B) being within a range of 20/80-85/15, and containing the component (C) in an amount within a range of 0.5-200 parts by weight per 100 parts by weight of the total solid resin content of the composition.Type: GrantFiled: April 5, 2007Date of Patent: March 1, 2011Assignee: Kansai Paint Co., Ltd.Inventors: Yasuyuki Kataoka, Toshiaki Nagano, Minoru Ishikura, Terutaka Takahashi, Hideo Sugai
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Publication number: 20100021742Abstract: This invention provides a water-based primer composition comprising (A) an aqueous dispersion of modified polyolefin, which is prepared by dispersing a modified polyolefin (a) in an aqueous medium, the polyolefin (a) being produced by modifying an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (i) having a melting point not higher than 120° C. and an weight-average molecular weight within a range of 30,000-200,000, further with a compound having polyoxyalkylene chain; (B) at least one kind of aqueous resin selected from aqueous urethane resin, aqueous acrylic resin and aqueous polyester resin; and (C) pigment; the solid weight ratio of the component (A)/component (B) being within a range of 20/80-85/15, and containing the component (C) in an amount within a range of 0.5-200 parts by weight per 100 parts by weight of the total solid resin content of the composition.Type: ApplicationFiled: April 5, 2007Publication date: January 28, 2010Inventors: Yasuyuki Kataoka, Toshiaki Nagano, Minoru Ishikura, Terutaka Takahashi, Hideo Sugai
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Publication number: 20090246547Abstract: This invention provides a water-based primer composition characterized by comprising an aqueous dispersion formed by dispersing unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 50-120° C. and a weight-average molecular weight within a range of 30,000-200,000, and unsaturated carboxylic acid- or acid anhydride-modified polyolefin (b) having a melting point of 30-100° C. and a weight-average molecular weight within a range of 30,000-200,000, in an aqueous medium, the melting point of the modified polyolefin (a) being higher than that of the modified polyolefin (b) by at least 10° C.Type: ApplicationFiled: February 15, 2007Publication date: October 1, 2009Inventors: Minoru Ishikura, Toshiaki Nagano, Yasuyuki Kataoka, Terutaka Takahashi, Hideo Sugai
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Publication number: 20090130322Abstract: This invention provides an aqueous primer composition which comprises (A) an aqueous dispersion of modified polyolefin which comprises an unsaturated carboxylic acid- or acid anhydride-modified polyolefin (a) having a melting point of 120° C. or lower and a weight average molecular weight of 30,000 to 180,000, dispersed in an aqueous medium, (B) an ionic functional group-containing acrylic resin, and (C) a conductive carbon-containing pigment, and which forms a coating film with an L value of 35 or more and a surface resistivity of 1×108?/? or less.Type: ApplicationFiled: October 18, 2006Publication date: May 21, 2009Inventors: Toshiaki Nagano, Yasuyuki Kataoka, Minoru Ishikura, Terutaka Takahashi, Hideo Sugai
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Publication number: 20050276983Abstract: The present invention relates to metal object-coating method, which method comprises coating a primer composition (I) prepared by adding an inorganic anti-corrosive agent to at least one binder component selected from the group consisting of a binder component (A) containing an epoxy resin and ant least one of amino resin and phenol resin, a binder component (B) containing a polyester resin, epoxy resin and phenol resin, and a binder component (C) containing ?-olefin•?,?-ethylenically unsaturated carboxylic acid copolymer resin onto the surface of a metal object coating substrate to form a primer coating film layer, followed by coating a topcoat coating composition consisting of a thermoplastic resin based coating composition (II) onto the primer coating film layer to form a topcoat coating film layer consisting of a thermoplastic resin coating film layer; and the primer composition used in the method.Type: ApplicationFiled: October 16, 2002Publication date: December 15, 2005Inventors: Seiji Kashiwada, Satomi Kitagawa, Toshio Ohkoshi, Yoshinori Kato, Tohru Hayase, Makoto Mizutani, Minoru Ishikura, Hitoshi Itoh