Patents Assigned to Kansai Paint, Co., Ltd.
  • Patent number: 11420226
    Abstract: An object achieved by the present invention is to provide a coated article having excellent appearance, corrosion resistance, weatherability, and chipping resistance obtained by a wet-on-wet coating.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: August 23, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hirohisa Tsuda, Toshiki Takenaka, Michihiro Fujita, Hideaki Katsuta
  • Publication number: 20220250115
    Abstract: A method for forming a multilayer coating film, sequentially conducting step (1) of applying an aqueous 2-package type first colored paint on both a metal member and a plastic member of an automobile outer panel to form an uncured first colored coating film; step (2) of applying an aqueous 1-package type white paint on the uncured first colored coating film by step (1) to form an uncured white coating film; step (3) of applying an aqueous 1-package type interference color paint on the uncured white coating film by step (2) to form an uncured interference color coating film; step (4) of applying a solvent-based 2-package type clear paint on the uncured interference color coating film by step (3) to form an uncured clear coating film; and step (5) of heating these coating films by steps (1) to (4) at 75 to 100° C. to simultaneously cure them.
    Type: Application
    Filed: June 22, 2020
    Publication date: August 11, 2022
    Applicants: KANSAI PAINT CO., LTD., NISSAN MOTOR CO., LTD.
    Inventors: Tatsuo OHNUKI, Kenichi UMEZAWA, Junpei SUZUKI, Tomoyuki OKAMOTO, Chie MICHIURA, Ayaka KURIHARA, Takeshi GOTO
  • Patent number: 11407210
    Abstract: A laminate containing a metallic base layer and a transparent colored layer formed on the metallic base layer. The metallic base layer contains an aluminum pigment, a light-scattering component, a surface adjusting agent, and a rheology control agent, the aluminum pigment being present in an amount of 15 to 70 parts by mass, on a solids basis; and the light-scattering component being present in an amount of 5 to 55 parts by mass, on a solids basis, based on 100 parts by mass of the metallic base layer. The transparent colored layer contains a resin component, a curing agent, and a color pigment, the color pigment being present in an amount of 0.5 to 10 parts by mass, based on 100 parts by mass of the resin solids content of the transparent colored layer.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 9, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Ikumi Ono, Nobuhiko Narita, Hirokazu Okazaki
  • Patent number: 11389830
    Abstract: A multilayer coating film forming method to form a multilayer coating film having a glittering appearance. Forming a multilayer coating film by sequentially applying, on top of a base material, a first base coating material, a second base coating material, and a clear coating material in a wet-on-wet process, wherein: the first base coating material is a transparent or colored coating material; the second coating material contains a flaky lustrous pigment; the amount of flaky lustrous pigment being 10-60 parts by mass to 100 parts by mass of resin solid content in the second base coating material, and the concentration of solids in the coating falls being 5-20 mass % with respect to the total mass of the second base coating material; and the thickness of a coating film obtained from the second base coating material falls being 1-8 ?m on the basis of the coating film when cured.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: July 19, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masahiro Omura, Hironori Tonomura
  • Patent number: 11369991
    Abstract: Provided is a method for forming a multilayer coating film, the method being capable of forming a high-brightness white multilayer coating film which is excellent in terms of brilliant feeling, smoothness, and weather resistance and with which white stains are suppressed. In this method for forming a multilayer coating film to form a brilliant coating film, a white multilayer coating film is formed by: sequentially applying a first coloring paint (P1), a second aqueous coloring paint (P2), a third aqueous coloring paint (P3), and a clear coat paint (P4) on a cured electrodeposition coating film formed on a steel sheet; and forming a first colored coating film, a second colored coating film, a third colored coating film, and a clear coat coating film which each have a particular composition, brightness, film thickness, and the like.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: June 28, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Masahiro Omura
  • Patent number: 11365281
    Abstract: A coating composition includes a blocked urethane elastomer (A) containing a terminal isocyanate group blocked with an oxime compound and having a number average molecular weight of 800 to 5,000, an aromatic diamine compound (B) containing an electron-donating group, and an amide compound (C). An equivalent ratio (amino group/isocyanate group) of the amino group of the aromatic diamine compound (B) to the isocyanate group of the blocked urethane elastomer (A) is within a range of 1.0 to 2.0. A solid content of the amide compound (C) is within a range of 0.5 mass % to 5 mass % based on a total solid content of the blocked urethane elastomer (A) and the aromatic diamine compound (B).
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: June 21, 2022
    Assignee: KANSAI PAINT CO.. LTD.
    Inventors: Mayu Kawagishi, Katsuto Komura
  • Publication number: 20220177716
    Abstract: A paint composition contains (A) a binder component, (B) a first rheology control agent, and (C) a second rheology control agent, wherein the first rheology control agent (B) is a non-aqueous dispersion resin (b); the second rheology control agent (C) contains a reaction product of (c1) a polyisocyanate compound, (c2) a primary monoamine having a number average molecular weight of 300 or less, and (c3) a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000; and the proportion of the polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (c3) is within the range of 10 to 30 mass % based on the total amount of the components (c1) to (c3).
    Type: Application
    Filed: December 18, 2019
    Publication date: June 9, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Masato NAKAMIZU
  • Publication number: 20220169883
    Abstract: A thermosetting coating composition includes a hydroxyl group-containing resin, a curing agent, a phosphazene compound, and a solvent. The curing agent is a polyisocyanate curing agent and/or a blocked polyisocyanate curing agent.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 2, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Mutsumi OGASAWARA, Fumio YAMASHITA
  • Publication number: 20220168777
    Abstract: Provided is a multilayer coating film comprising an effect base coating film and a colored base coating film formed on the effect base coating film, wherein when X=[(C*45)2+(C*75)2]1/2 and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 145 or more (wherein C*15, C*25, C*45, and C*75 represent chroma values calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees and received at light-receiving angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from specular reflection light to the side closer to the incident light; and L*15 and L*25 represent lightness values when light illuminated at an incident angle of 45 degrees is received at light-receiving angles of 15 degrees and 25 degrees deviated from specular reflection light to the side closer to the incident light).
    Type: Application
    Filed: December 13, 2019
    Publication date: June 2, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu OKAZAKI, Nobuhiko NARITA
  • Patent number: 11344914
    Abstract: Provided is a method for forming a multilayer coating film, comprising simultaneously curing an uncured base coating film, an uncured effect coating film, and an uncured clear coating film. In this method, an effect pigment dispersion (Y) that forms the effect coating film contains water, a surface adjusting agent (A), a flake-effect pigment (B), and a rheology control agent (C), and has a solids content of 0.5 to 10 mass %.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 31, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masayuki Itoh, Yushi Kihira, Hiroshi Murata, Masahiro Omura
  • Publication number: 20220162458
    Abstract: A paint composition contains (A) a binder component, (B) a first rheology control agent, and (C) a second rheology control agent, wherein the first rheology control agent (B) contains a reaction product of (b1) a polyisocyanate compound, (b2) a primary monoamine having a number average molecular weight of 300 or less, and (b3) a polyether amine having a number average molecular weight of more than 300 and less than 6000; the proportion of the polyether amine having a number average molecular weight of more than 300 and less than 6000 (b3) is 0.
    Type: Application
    Filed: December 18, 2019
    Publication date: May 26, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Masato NAKAMIZU
  • Publication number: 20220161294
    Abstract: Provided is a multilayer coating film comprising a colored base coating film and an effect base coating film formed on the colored base coating film, wherein the hue angle h in the L*C*h color space diagram is within the range of 30° to 70°, and when the following formulas hold: X=[(C*45)2+(C*75) 2]1/2, and Y=[(L*15)2+(C*15)2]1/2+[(L*25)2+(C*25)2]1/2, X is 80 or more and Y is 140 or more; provided that C*15, C*25, C*45, and C*75 represent the chroma of the multilayer coating film when light is illuminated at an angle of 45 degrees and received at angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from the specular reflection light in the incident light direction, and L*15 and L*25 similarly represent the lightness of the multilayer coating film.
    Type: Application
    Filed: December 18, 2019
    Publication date: May 26, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu OKAZAKI, Nobuhiko NARITA
  • Publication number: 20220162473
    Abstract: Provided is a water-based coating composition capable of forming a multilayer coating film having an excellent finished appearance and having excellent storage stability. A water-based coating composition to be used as a water-based first colored coating (X) in a 3-coat-1-bake multilayer coating formation method which sequentially applies a water-based first colored coating (X), a water-based second colored coating (Y), and a clear coating (Z) and heats and cures the obtained three-layer multilayer coating film simultaneously, wherein the water-based coating composition contains at least one resin selected from acrylic resins (A) and polyester resins (B), a curing agent (C), and urethane resin particles (D) obtained from structural components including a polyisocyanate component (d1) containing at least one diisocyanate (d1-1) selected from xylylene diisocyanate and hydrogenated xylylene diisocyanate and a polyol component (d2).
    Type: Application
    Filed: January 15, 2020
    Publication date: May 26, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Ryusuke HIRAMATSU, Yosuke MORISHITA, Daisuke FURUYA
  • Publication number: 20220154014
    Abstract: 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: Application
    Filed: March 18, 2020
    Publication date: May 19, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Akinori NAGAI, Tomoya KIMURA, Kenichiro MATSUNAGA
  • Publication number: 20220145100
    Abstract: A rheology control agent contains a reaction product of a polyisocyanate compound (a1), a primary monoamine having a number average molecular weight of 300 or less (a2), and a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (a3), wherein the proportion of the polyether amine having a number average molecular weight of 1000 or more and less than 6000 (a3) is within the range of 10 to 30 mass % based on the total amount of the components (a1) to (a3).
    Type: Application
    Filed: December 18, 2019
    Publication date: May 12, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Masato NAKAMIZU
  • Publication number: 20220134380
    Abstract: A method includes a step of applying an aqueous 2-package type first colored paint to form an uncured first colored coating film; a step of applying an aqueous 1-package type second colored paint to form an uncured second colored coating film; a step of applying a solvent-based 2-package type clear paint to form an uncured clear coating film; and a step of heating the uncured first colored coating film, the uncured second colored coating film and the uncured clear coating film to 75 to 100° C. to simultaneously cure these films. The solvent-based 2-package type clear paint contains a hydroxyl group-containing acrylic resin and a polyisocyanate compound in a ratio of 1.5 to 2.0 equivalents of isocyanate groups in the polyisocyanate compound relative to 1 equivalent of hydroxyl groups in the hydroxyl group-containing acrylic resin.
    Type: Application
    Filed: December 18, 2019
    Publication date: May 5, 2022
    Applicants: KANSAI PAINT CO., LTD., NISSAN MOTOR CO., LTD.
    Inventors: Tatsuo OHNUKI, Kenichi UMEZAWA, Junpei SUZUKI, Tomoyuki OKAMOTO, Chie MICHIURA, Takamitsu ONO, Yoshiaki TOMIYAMA
  • Publication number: 20220119668
    Abstract: An active energy ray-curable coating composition, includes the following components (A), (B), (C), and (D): (A) urethane (meth)acrylate having a polycarbonate skeleton and three or more polymerizable unsaturated groups in one molecule and having a weight average molecular weight in a range of 10,000 to 40,000; (B) urethane (meth)acrylate having a weight average molecular weight in a range of 1,000 or more and less than 10,000; (C) at least one compound selected from the group consisting of (c1) to (c3); and (D) a photopolymerization initiator.
    Type: Application
    Filed: February 28, 2020
    Publication date: April 21, 2022
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Haruka NAKAOKA, Kota GOTO
  • Publication number: 20220111415
    Abstract: The present invention provides a multilayer coating film-forming method that is capable of forming a multilayer coating film with excellent finished appearance and excellent luster. The aqueous base paint (X) is applied by using a rotary-atomization bell-shaped coater under coating conditions of a shaping air pressure of 0.15 to 0.25 MPa and a paint discharge amount of 100 to 300 cm3/min. The viscosity 60 seconds after the application of the aqueous base paint (X), measured at a temperature of 23° C. and a shear rate of 0.1 sec-1, is 90 to 160 Pa·s, the solids content 60 seconds after the application is 20 to 40 mass %, and the film thickness 60 seconds after the application is 17 to 35 ?m.
    Type: Application
    Filed: October 13, 2021
    Publication date: April 14, 2022
    Applicants: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayuki ITOH, Nobuyoshi SUZUKI, Takuya NAKABAYASHI, Masahiro OMURA, Takao TSUKIMORI
  • Patent number: 11292936
    Abstract: A paint composition comprises (A) a binder component and (B) a rheology control agent, the rheology control agent (B) comprising a reaction product of (b1) a polyisocyanate compound, (b2) a primary monoamine having a number average molecular weight of 300 or less, and (b3) a polyether amine having a number average molecular weight of more than 300 but less than 6000.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: April 5, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Masato Nakamizu
  • Patent number: 11285509
    Abstract: A method for forming a multilayer coating film, the method including the following steps (1) to (3): (1) applying a colored paint (X) to a substrate to form a colored coating film whose lightness L* value in the L*a*b* color space is 5 or less, (2) applying an effect pigment dispersion (Y) to the colored coating film formed in step (1) to form an effect coating film, and (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film, wherein the effect pigment dispersion (Y) contains water, a rheology control agent (A), and a flake-effect pigment (B), the flake-effect pigment (B) being an effect pigment in which a transparent or translucent base material is coated with a metal oxide, and the effect pigment dispersion (Y) having a solids content of 0.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: March 29, 2022
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu Okazaki, Tatsuo Kuramochi, Kenji Sakai, Nobuhiko Narita