Patents Assigned to Kansai Paint, Co., Ltd.
  • Patent number: 12252625
    Abstract: A coating composition having excellent trickle resistance which forms a coating film that exhibits excellent gloss stability. The coating composition contains a hydroxyl group-containing acrylic resin (A), a polyisocyanate compound (B), a matting agent (C), an organic solvent (D1) and an organic solvent (D2), and wherein the organic solvent (D1) has a specified boiling point and solubility parameter; the organic solvent (D2) has a specified boiling point and solubility parameter; and with respect to the contents of the organic solvent (D1) and the organic solvent (D2) based on 100 parts by mass of the total solid content of the hydroxyl group-containing acrylic resin (A) and the polyisocyanate compound (B), the content of the organic solvent (D1) is within the range of 5-40 parts by mass and the content of the organic solvent (D2) is within the range of 35-75 parts by mass.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: March 18, 2025
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hiroshi Murata, Toru Uozumi, Masahiro Omura
  • Publication number: 20250084259
    Abstract: An effect coating composition containing indium particles (A), a surface conditioner (B), a pigment dispersant (C), a viscosity modifier (D), and water (E). The effect coating composition has a solid content percentage of from 0.1 to 15 mass %.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 13, 2025
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Nobuhiko NARITA, Maiko Hayashi
  • Patent number: 12240997
    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: Grant
    Filed: December 18, 2019
    Date of Patent: March 4, 2025
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Masato Nakamizu
  • Publication number: 20250026942
    Abstract: Provided is a coating composition containing a hydroxyl group-containing resin (A), a curing agent (B), a scale-shaped effect pigment (C), a viscosity modifier (D), and an organic solvent (E) having a solubility in water at 20° C. of 4 mass % or greater. The viscosity modifier (D) contains at least one viscosity modifier selected from the group consisting of a cellulose nanocrystal (D1) and a cellulose nanofiber (D2). A content of the organic solvent (E) having a solubility in water at 20° C. of 4 mass % or greater is in a range of 10 to 25 mass % based on a content of a volatile component in the coating composition.
    Type: Application
    Filed: June 16, 2022
    Publication date: January 23, 2025
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Kazushi KONISHI
  • Patent number: 12202009
    Abstract: A method for forming a multilayer coating film, comprising sequentially applying a first colored paint (X), a second colored paint (Y), and a clear paint (Z) to a substrate, and heating the three layers of the obtained multilayer coating film separately or simultaneously to cure these layers. The first colored coating film has a lightness L* within the range of 30 to 60, the second colored coating film has a light transmittance at a wavelength of 400 nm or more and 700 nm or less within the range of 15% or more and less than 30%, and |h(X)?h(S)|, which is a difference between a hue angle h in the L*C*h color space diagram of the first colored coating film (h(X)) and a hue angle h in the L*C*h color space diagram of the multilayer coating film (h(S)), is within the range of 0 to 30.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 21, 2025
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Yoshiaki Ukai, Hiroyuki Tsuji, Kazutaka Ogura, Naoto Matsushima
  • Publication number: 20240376337
    Abstract: Provided is a coating composition containing: a hydroxyl group-containing resin (A), a curing agent (B), and cellulose nanocrystal particles (C), where a viscosity (V1) measured under conditions of a temperature of 25° C. and a shear rate of 1500 sec?1 is in a range from 10 to 70 mPa·s, and a viscosity (V2) measured under conditions of a temperature of 25° C. and a shear rate of 0.1 sec?1 is in a range from 10000 to 50000 mPa·s.
    Type: Application
    Filed: June 16, 2022
    Publication date: November 14, 2024
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Kazushi KONISHI
  • Publication number: 20240322181
    Abstract: Provided is a carbon nanotube dispersed liquid for lithium ion battery electrodes, containing a dispersion resin (A), carbon nanotubes (B), and water, in which the dispersion resin (A) contains a polar functional group-containing resin (a).
    Type: Application
    Filed: July 13, 2022
    Publication date: September 26, 2024
    Applicant: Kansai Paint Co., Ltd.
    Inventors: Haruhiko Okiyama, Yuji Hirose, Keiichi Katayama
  • Patent number: 12097532
    Abstract: This invention provides a method for forming a multilayer coating film, comprising applying a base paint (X) having a solids content ratio of 30 to 62 mass % to a substrate to form a base coating film having a cured film thickness of 6 to 45 ?m; applying an effect pigment dispersion (Y) having a solids content ratio of 0.1 to 10 mass % to the base coating film to form an effect coating film having a cured film thickness of 0.1 to 5.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 24, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Kenji Sakai
  • Patent number: 12091580
    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: Grant
    Filed: December 18, 2019
    Date of Patent: September 17, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Masato Nakamizu
  • Publication number: 20240294779
    Abstract: A multilayer coating film-forming method including: (1) applying a photoluminescent coating material composition (Y) onto an object to be coated to form a photoluminescent coating film; (2) applying a clear coating material composition (Z) containing (z1) a hydroxyl group-containing resin and (z2) a polyisocyanate compound onto the photoluminescent coating film produced in (1) to form a clear coating film; and (3) heating, separately or simultaneously, the photoluminescent coating film formed in (1) and the clear coating film formed in (2) to cure the photoluminescent coating film and the clear coating film, the photoluminescent coating material composition (Y) containing an indium particle (y1), a surface conditioner (y2), and an organic solvent (y3), and a solid content being from 0.1 to 15 mass %.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 5, 2024
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Nobuhiko NARITA, Kenji SAKAI
  • Patent number: 12060494
    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: Grant
    Filed: February 28, 2020
    Date of Patent: August 13, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Haruka Nakaoka, Kota Goto
  • Patent number: 12054631
    Abstract: The problem to be solved by the present invention is to provide an effect pigment dispersion that exhibits excellent water resistance, that can form metallic or pearly luster, and that further exhibits high stability; and to provide a method for forming a multilayer coating film. The present invention provides an effect pigment dispersion that contains water, a wetting agent (A), a flake-effect pigment (B), and a phosphate-group-containing cellulose-based rheology control agent (C). The effect pigment dispersion has a solids content of 0.1 to 10 parts by mass, per 100 parts by mass of all of the components of the effect pigment dispersion; and has a viscosity of 100 to 10000 mPa·sec as measured with a Brookfield viscometer at a rotational speed of 6 revolutions per minute.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: August 6, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Yosuke Hasegawa, Nobuhiko Narita, Masayuki Itoh, Kenji Sakai
  • Patent number: 12043764
    Abstract: The present disclosure is a cationic electrodeposition coating composition comprising an emulsion particle (A) containing a Michael addition reaction donor component and an emulsion particle (B) containing a Michael addition reaction acceptor component wherein a Michael addition reaction catalyst (C) is contained in the emulsion particle (A) or the emulsion particle (B) or is contained in the cationic electrodeposition coating composition by being microencapsulated.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 23, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Makoto Yasuhara, Mutsumi Ogasawara, Takahiro Hidaka
  • Patent number: 12043763
    Abstract: An effect paint for automobiles, comprising water, a dispersant (A), cellulose nanofibers (B), and an effect pigment (C).
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 23, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Kenji Sakai, Nobuhiko Narita
  • Publication number: 20240240049
    Abstract: An aqueous coating composition for automotive exterior, the aqueous coating composition containing resin particles (A), a crosslinking agent (B), a pigment (C), and a nanocellulose (D). In the aqueous coating composition, a content of the nanocellulose (D) is 0.5 to 2.0 parts by mass in terms of solid content with respect to 100 parts by mass of a resin solid content in the coating, a solid content concentration of the coating composition is in a range from 45 to 65 mass %, and a viscosity of the coating composition measured by a Brookfield-type viscometer under measurement conditions of a temperature of 20° C. and a rotor rotation speed of 60 rpm is in a range from 350 to 1200 mPa·s.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 18, 2024
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Yukihiro IKEURA, Gen YOKOTA, Eisuke NISHIGUCHI, Hiroaki YAMADA
  • Patent number: 12037510
    Abstract: An object is to provide an aqueous coating material composition having high viscosity expression property as well as a viscosity property of decreasing viscosity with increase in shear velocity; in particular, to provide an aqueous coating material composition that can form a multilayer coating film having excellent smoothness, clarity, flip-flop property, adhesion, and water resistance; in addition, to provide a method for forming a multilayer coating film using such aqueous coating material composition, as well as a coated article that has been coated with such aqueous coating material composition. As a solution, an aqueous coating material composition is provided that contains a polyester resin (A), acrylic resin particles (B), a curing agent (C), and a coloring pigment (D), wherein the polyester resin (A) is a resin containing a trifunctional or higher polyfunctional polycarboxylic acid (a1) and a polyol (a2) as monomer components.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: July 16, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Yuri Goshozono, Toru Tsuji, Tomoya Murakami, Narihito Nakano
  • Patent number: 12031050
    Abstract: To provide a paint composition capable of forming a coating film having a small graininess, having high flip-flop property, and having excellent chipping resistance and adhesion.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: July 9, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Takashi Kitamura
  • Patent number: 12031049
    Abstract: An aqueous coating material composition, includes: a polyolefin resin aqueous dispersion (A) containing a polypropylene (a1); a crosslinking agent (B) having a functional group that reacts with a carboxyl group; and a polyester resin aqueous dispersion (C) having a resin acid value of 3 mgKOHg to 100 mgKOH/g, and with respect to a total solid content of the polyolefin resin aqueous dispersion (A), a solid content of the crosslinking agent (B) is 0.1 mass % to 20 mass %, and a solid content of the polyester resin aqueous dispersion (C) is 0.5 mass % to 30 mass %.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: July 9, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Mika Yamazaki, Kazuaki Keicho, Shingo Amaki
  • Publication number: 20240158646
    Abstract: The present invention relates to a solution to provide a conductive pigment paste that exhibits excellent pigment dispersibility and storage stability even as a paste with a high pigment concentration and/or high viscosity, and can be used to form a coating film excelling in conductivity and other properties. The present invention provides a method for manufacturing a conductive pigment paste. The method includes dispersing a paste containing a pigment dispersion resin (A), a conductive pigment (B), and a solvent (C) using at least one type of disperser selected from the group consisting of a bead mill, a homogenizer, an ultrasonic disperser, a kneader, an extruder, and a planetary mixer.
    Type: Application
    Filed: May 17, 2022
    Publication date: May 16, 2024
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Koji ENDO, Masanao HASHIMURA, Takashi KITAMURA, Yoshiyuki YUKAWA
  • Patent number: 11958074
    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: Grant
    Filed: December 18, 2019
    Date of Patent: April 16, 2024
    Assignees: KANSAI PAINT CO., LTD, NISSAN MOTOR CO., LTD.
    Inventors: Tatsuo Ohnuki, Kenichi Umezawa, Junpei Suzuki, Tomoyuki Okamoto, Chie Michiura, Takamitsu Ono, Yoshiaki Tomiyama