Patents by Inventor Masami Kobata

Masami Kobata 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: 10968304
    Abstract: Provided are: a method for producing a polymer composition containing a modified chlorinated polyolefin, which exhibits excellent production stability; and a coating material which contains a polymer composition containing a modified chlorinated polyolefin. According to the present invention, a polymer composition containing a modified chlorinated polyolefin is obtained by copolymerizing polymerizable monomers including (b) a chlorinated polyolefin having an allyloxy group and (c) one or more compounds selected from among (meth)acrylic acid esters, (meth)acrylic acids and styrene in the coexistence of (a) a compound having an allyloxy group and a hydroxyl group.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: April 6, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Masami Kobata
  • Publication number: 20200247929
    Abstract: Provided are: a method for producing a polymer composition containing a modified chlorinated polyolefin, which exhibits excellent production stability; and a coating material which contains a polymer composition containing a modified chlorinated polyolefin. According to the present invention, a polymer composition containing a modified chlorinated polyolefin is obtained by copolymerizing polymerizable monomers including (b) a chlorinated polyolefin having an allyloxy group and (c) one or more compounds selected from among (meth)acrylic acid esters, (meth)acrylic acids and styrene in the coexistence of (a) a compound having an allyloxy group and a hydroxyl group.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 6, 2020
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Masami KOBATA
  • Patent number: 10308822
    Abstract: An object to be solved by the present invention is to discover a thermosetting coating composition ensuring an excellent finished appearance without a decrease in corrosion resistance, and to provide a coated article with such excellent coating performances. The present invention provides a thermosetting coating composition, comprising a modified epoxy resin (A) resulting from a reaction of an epoxy resin (a1) with a modifier (a2), and optionally with an amine compound (a4); and a blocked polyisocyanate compound (B), the modified epoxy resin (A) comprising, at least in a part of the terminals thereof, a specific organic group, and having a number average molecular weight of 800 to 80,000.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 4, 2019
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Tsuneaki Hori, Masami Kobata
  • Publication number: 20180327613
    Abstract: An object to be solved by the present invention is to discover a thermosetting coating composition ensuring an excellent finished appearance without a decrease in corrosion resistance, and to provide a coated article with such excellent coating performances. The present invention provides a thermosetting coating composition, comprising a modified epoxy resin (A) resulting from a reaction of an epoxy resin (a1) with a modifier (a2), and optionally with an amine compound (a4); and a blocked polyisocyanate compound (B), the modified epoxy resin (A) comprising, at least in a part of the terminals thereof, a specific organic group, and having a number average molecular weight of 800 to 80,000.
    Type: Application
    Filed: November 19, 2015
    Publication date: November 15, 2018
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Tsuneaki HORI, Masami KOBATA
  • Patent number: 10047189
    Abstract: It is an object of the invention to provide a block polyisocyanate compound with excellent storage stability. The block polyisocyanate compound of the invention has the following construction. A block polyisocyanate compound having at least one block isocyanate group selected from the group consisting of a block isocyanate group represented by formula (I), block isocyanate group represented by formula (II) and block isocyanate group represented by formula (III), and a hydrophilic group.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: August 14, 2018
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masami Kobata, Hiroshi Kitagawa, Kazuaki Kitazono
  • Patent number: 9580619
    Abstract: The objective of the present invention is to provide: an aqueous coating composition which has excellent adhesiveness to a plastic substrate and which is capable of forming a multilayer coating film, which has excellent finishing property and water resistance and in which mixing of the layers does not occur even when preheating is not conducted after coating and the next process of applying a finishing coat is performed thereafter; and a coating method using the composition. This aqueous coating composition is characterized by comprising an aqueous dispersion of a modified polyolefin (A), an aqueous acrylic resin (B) and a blocked polyisocyanate compound having a specific blocked isocyanate (C).
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: February 28, 2017
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Kazutaka Ogura, Hiroyuki Nagano, Hiroshi Igarashi, Masami Kobata
  • Patent number: 9427779
    Abstract: 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: Grant
    Filed: February 22, 2013
    Date of Patent: August 30, 2016
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Minoru Ishikura, Takashi Nakayabu, Yuuki Yamada, Masami Kobata
  • Patent number: 9404010
    Abstract: 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: Grant
    Filed: June 24, 2013
    Date of Patent: August 2, 2016
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Naoyuki Iwata, Fumio Yamashita, Minoru Ishikura, Takashi Nakayabu, Kazushi Konishi, Toshiaki Morita, Masami Kobata
  • Publication number: 20150218405
    Abstract: 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: Application
    Filed: June 24, 2013
    Publication date: August 6, 2015
    Inventors: Naoyuki Iwata, Fumio Yamashita, Minoru Ishikura, Takashi Nakayabu, Kazushi Konishi, Toshiaki Morita, Masami Kobata
  • Publication number: 20150175833
    Abstract: The objective of the present invention is to provide: an aqueous coating composition which has excellent adhesiveness to a plastic substrate and which is capable of forming a multilayer coating film, which has excellent finishing property and water resistance and in which mixing of the layers does not occur even when preheating is not conducted after coating and the next process of applying a finishing coat is performed thereafter; and a coating method using the composition. This aqueous coating composition is characterized by comprising an aqueous dispersion of a modified polyolefin (A), an aqueous acrylic resin (B) and a blocked polyisocyanate compound having a specific blocked isocyanate (C).
    Type: Application
    Filed: June 14, 2013
    Publication date: June 25, 2015
    Applicant: Kansai Paint Co., Ltd.
    Inventors: Kazutaka Ogura, Hiroyuki Nagano, Hiroshi Igarashi, Masami Kobata
  • Publication number: 20150037591
    Abstract: 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: Application
    Filed: February 22, 2013
    Publication date: February 5, 2015
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Minoru Ishikura, Takashi Nakayabu, Yuuki Yamada, Masami Kobata
  • Patent number: 8784947
    Abstract: 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: Grant
    Filed: October 3, 2013
    Date of Patent: July 22, 2014
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
  • Publication number: 20140031484
    Abstract: It is an object of the invention to provide a block polyisocyanate compound with excellent storage stability. The block polyisocyanate compound of the invention has the following construction. A block polyisocyanate compound having at least one block isocyanate group selected from the group consisting of a block isocyanate group represented by formula (I), block isocyanate group represented by formula (II) and block isocyanate group represented by formula (III), and a hydrophilic group.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 30, 2014
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Masami Kobata, Hiroshi Kitagawa, Kazuaki Kitazono
  • Publication number: 20140030528
    Abstract: The invention provides a multilayer coating film-forming method that allows formation of a multilayer coating film with excellent smoothness, sharpness and water resistance, and which avoids or minimizes pinhole popping. The multilayer coating film-forming method of the invention has the following construction. A multilayer coating film-forming method comprising the following steps (1) to (4): step (1): coating an article to be coated with an aqueous first pigmented coating composition (X), step (2): coating the article to be coated, with an aqueous second pigmented coating composition (Y), step (3): coating the article to be coated, with a clear coating composition (Z), and step (4): heating an uncured first pigmented coating film, uncured second pigmented coating film and uncured clear coating film to cure them, wherein the aqueous first pigmented coating composition (X) contains a blocked polyisocyanate compound with a specific blocked isocyanate group.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 30, 2014
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Hiroshi Kitagawa, Kazuaki Kitazono, Masami Kobata
  • Publication number: 20140030441
    Abstract: 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: Application
    Filed: October 3, 2013
    Publication date: January 30, 2014
    Applicant: Kansai Paint Co., Ltd.
    Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
  • Patent number: 8575383
    Abstract: 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: Grant
    Filed: September 9, 2009
    Date of Patent: November 5, 2013
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
  • Patent number: 8409721
    Abstract: This invention provides a method for producing a pigment-dispersing resin which contains divalent group(s) represented by a general formula (I): (in which R1 stands for C1-10 alkylene group, m is an integer of 1-30, and the m recurring units, ?may be the same or different), phosphoric acid group(s) and/or sulfonic acid group(s), characterized by copolymerizing a polymerizable unsaturated monomeric mixture in a reaction solvent containing at least 30 mass %, based on the total mass of the reaction solvent, of an organic solvent having no hydroxyl group and having a solubility in 20° C. water of at least 100 mass %.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: April 2, 2013
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Masami Kobata, Noriyuki Yamada, Hiromi Harakawa
  • Patent number: 7999015
    Abstract: The present invention provides an aqueous curable composition comprising (A) a compound comprising all or some primary amino groups and/or secondary amino groups optionally neutralized with a Brønsted acid, and (B) a crosslinking agent, the crosslinking agent being a compound having an (N-alkyl-N-(2-acylacyl)amino)alkyloxycarbonylamino group represented by General Formula (I) wherein R1, R2 and R3 are each independently a hydrogen atom or C1-7 alkyl group, R4 and R5 are each independently a hydrogen atom or C1-16 organic group, and Y is a straight C1-6 alkylene group optionally substituted with a C1-6 organic group as a substituent.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: August 16, 2011
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Masami Kobata, Shinji Tsushima
  • Publication number: 20110196059
    Abstract: 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: Application
    Filed: September 9, 2009
    Publication date: August 11, 2011
    Inventors: Akinori Nagai, Yoshiaki Chino, Masami Kobata, Osamu Isozaki
  • Publication number: 20110160330
    Abstract: 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: Application
    Filed: August 12, 2009
    Publication date: June 30, 2011
    Inventors: Akinori Nagai, Masami Kobata, Osamu Isozaki