Patents Assigned to Kansai Paint, Co., Ltd.
  • Publication number: 20210229130
    Abstract: Provided are a multilayer coating film with pearl luster that is bright in highlight and that has a small change in graininess due to difference in observation directions, and a method for forming the multilayer coating film. The multilayer coating film contains on a substrate in the following sequence a color-pigment-containing colored base coating film, an interference-pigment-containing effect base coating film, and a clear-coat coating film. The multilayer coating film has a Y value (Y5) in the XYZ color space of 300 or more. The multilayer coating film has a ratio of a 15° sparkle area Sa to a 45° sparkle area Sa of 7 or less.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Shigeru TOMIZAWA
  • Patent number: 11071999
    Abstract: The present invention relates to an effect pigment dispersion comprising water, a rheology control agent (A), and a flake-effect pigment (B), the flake-effect pigment (B) being an interference pigment in which a transparent or translucent substrate is coated with a metal oxide, and the solids content of the effect pigment dispersion being 0.1 to 15 mass %.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: July 27, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hirokazu Okazaki, Masayuki Itoh, Tatsuo Kuramochi
  • Publication number: 20210214571
    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: Application
    Filed: May 22, 2019
    Publication date: July 15, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Yosuke HASEGAWA, Nobuhiko NARITA, Masayuki ITOH, Kenji SAKAI
  • Publication number: 20210205844
    Abstract: Provided is a method for forming a multilayer coating film, which is capable of forming a multilayer coating film that exhibits excellent curability at low temperatures, while having excellent hardness and excellent finish appearance.
    Type: Application
    Filed: August 9, 2018
    Publication date: July 8, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Kenji IMANAKA, Hiroshi KITAGAWA
  • Publication number: 20210197228
    Abstract: Provided is a multilayer coating film including a metallic base coating film and a transparent colored coating film that contains a blue pigment and that is disposed on the metallic base coating film, wherein the value of hue angle h in an L*C*h color space diagram of the multilayer coating film is within the range of 225° to 300°, and when X=C*45/L*45 and Y=[(L*15)2+(C*15)2)]1/2+[(L*25)2+(C*25)2)]1/2, X is 2 to 20 and Y is 50 to 250, provided that C*15, C*25, and C*45 each represent a chroma of the multilayer coating film calculated from a spectral reflectance of light illuminated at an incident angle of 45° with respect to the multilayer coating film and received at angles of 15°, 25°, and 45° deviated from specular reflection light, and that L*15, L*25, and L*45 each represent a lightness of the multilayer coating film calculated from a spectral reflectance of light illuminated at an incident angle of 45° with respect to the multilayer coating film and received at angles of 15°, 25° and 45° deviated from s
    Type: Application
    Filed: May 10, 2019
    Publication date: July 1, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Natsuko NAKANO, Masashi KANDA, Kodai KITANO
  • Publication number: 20210194147
    Abstract: Provided is a light weight and remarkably flexible sheet-shaped radio wave absorber having excellent radio wave absorbing capacity in milliwave band frequencies. The invention is a milliwave band radio wave absorption sheet comprising a radio wave reflection layer (A), a radio wave absorption layer (B) disposed above the layer (A) so as to be parallel thereto, and a protective layer (C) disposed above the layer (B) so as to be parallel thereto. The layer (B) has, at a frequency of 79 GHz, a dielectric constant, wherein the real part is 10 to 20 and the absolute value of the imaginary part is 4 to 10. The layer (B) has a film thickness of 200 to 400 ?m. The absolute value of the imaginary part/real part from the dielectric constant is within a range of 0.30 to 0.60. The layer (C) has, at a frequency of 79 GHz, a dielectric constant, wherein the real part is 1.5 to 8.0 and the absolute value of the imaginary part is less than 1.0, and has a film thickness of 50 to 200 ?m.
    Type: Application
    Filed: June 27, 2018
    Publication date: June 24, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Toshiaki NAGANO
  • Publication number: 20210178428
    Abstract: A method for forming a multilayer coating film comprising the steps of: applying, to a substrate, an effect pigment dispersion that comprises water, a surface adjusting agent, a flake-effect pigment, and a rheology control agent, and that has a solids content within the range of 0.5 to 10 mass % to form an effect pigment-containing coating, film; and applying a colored transparent paint to the effect pigment-containing coating film to form a colored transparent coating film having a total light transmittance at a wavelength of 400 nm to 700 nm of 20 to 70%.
    Type: Application
    Filed: October 31, 2018
    Publication date: June 17, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Ikumi ONO, Nobuhiko NARITA, Hirokazu OKAZAKI
  • Patent number: 11021631
    Abstract: The present invention provides the following aqueous coating composition. The aqueous coating composition comprises resin particles (A) having an average particle diameter of 300 to 1000 nm, a polyoxyalkylene group-containing polyol (B) having a number average molecular weight of 300 to 2000 and/or a diester compound (C), and a crosslinking agent (D); wherein the total solids content of the polyoxyalkylene group-containing polyol (B) and the diester compound (C) is 5 to 25 mass % based on the total solids content of the resin particles (A), the polyoxyalkylene group-containing polyol (B), the diester compound (C), and the crosslinking agent (D).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: June 1, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Takashi Kanda
  • Publication number: 20210129186
    Abstract: The multilayer coating film formation method for forming a multilayer coating film on a substrate comprises the steps of: applying an undercoat paint composition (X) comprising an antioxidant (a1) to a substrate to form at least one layer of an uncured first coating film; applying a topcoat paint composition (Y) containing a carboxy-containing polymer (b1) and an epoxy-containing acrylic resin (b2) to the first coating film to form an uncured second coating film; and simultaneously heating the uncured first coating film and the uncured second coating film to cure the films.
    Type: Application
    Filed: May 10, 2018
    Publication date: May 6, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Takuya NAKABAYASHI
  • Publication number: 20210129184
    Abstract: Provided are a brilliant pigment-containing aqueous base coat coating material with which it is possible to ensure waterproof adhesiveness and impart a metallic gloss, and a method for forming a multilayer film using the same. The invention provides a brilliant pigment-containing aqueous base coat coating material including water-dispersible acrylic polymer particles (A), a water-soluble acrylic resin (B), a curing agent (C), and a brilliant pigment (D) obtained by pulverizing a vapor-deposited metal film to create metal chips. The water-soluble acrylic resin (B) is a copolymer of an N-substituted (meth)acrylamide (i), a hydroxyl group-containing polymerizable unsaturated monomer (ii), a carboxyl group-containing polymerizable unsaturated monomer (iii), and a polymerizable unsaturated monomer (iv) other than (i)-(iii).
    Type: Application
    Filed: January 12, 2021
    Publication date: May 6, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Hiroki TAKEDA, Tohru IWAMOTO, Hiromi KATOH, Junichi KAJIMA, Shigeru TOMIZAWA
  • Publication number: 20210121914
    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: Application
    Filed: May 20, 2019
    Publication date: April 29, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventor: Masahiro OMURA
  • Patent number: 10975261
    Abstract: The problem to be solved by the present invention is to provide an aqueous coating composition having an excellent finished appearance, such as smoothness and distinctness of image, as well as metallic feel and no metallic mottling when the composition comprises an effect pigment; excellent coating film performance, such as water resistance; and excellent storage stability. The present invention provides an aqueous coating composition comprising (A) acrylic resin particles, (B) a water-soluble acrylic resin, and (C) a phosphoric acid compound represented by a specific formula and having hydrocarbon (and optionally polyoxyalkylene); and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: April 13, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Daisuke Takayama, Hironori Tonomura, Naoto Matsushima, Shuichi Nakahara
  • 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
  • Patent number: 10961400
    Abstract: The present invention provides the following method for forming a multilayer coating film. The method comprises forming an uncured coating film of a specific primer paint composition (A) on a substrate, forming a top coating film of a specific top paint composition (B) on the uncured coating film, and simultaneously drying the films. The primer paint composition (A) is a paint composition comprising an epoxy resin (a1), a rust preventive pigment (a2), a color pigment (a3), and an extender pigment (a4); and the top paint composition (B) is a paint composition comprising an acrylic resin (b1) and an active methylene blocked polyisocyanate compound (b2).
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 30, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Keitaro Yamamoto, Masahiro Tada, Hirohisa Tsuda, Hideaki Katsuta
  • Publication number: 20210086228
    Abstract: A laminate containing a metallic base layer and a transparent colored layer formed on the metallic base layer, 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 64 or more, and Y is 191 or more; and the measured value of graininess (HG value) is 45 or less, with the proviso that C*15, C*25, C*45, and C*75 represent chroma calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees with respect to the laminate and received at respective angles of 15 degrees, 25 degrees, 45 degrees, and 75 degrees deviated from the specular reflection light, and that L*15 and L*25 represent lightness calculated from spectral reflectances of light illuminated at an incident angle of 45 degrees with respect to the laminate and received at respective angles of 15 degrees and 25 degrees deviated from the specular reflection light.
    Type: Application
    Filed: December 14, 2018
    Publication date: March 25, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Ikumi ONO, Nobuhiko NARITA, Hirokazu OKAZAKI
  • Publication number: 20210078313
    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: Application
    Filed: December 14, 2018
    Publication date: March 18, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Ikumi ONO, Nobuhiko NARITA, Hirokazu OKAZAKI
  • Publication number: 20210054228
    Abstract: This invention relates to a paint composition comprising (A) a binder component and (B) a rheology control agent, the binder component (A) comprising an alkoxysilyl-containing acrylic resin (A1) and 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: Application
    Filed: December 20, 2018
    Publication date: February 25, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Takuya NAKABAYASHI, Takuya UEDA
  • Publication number: 20210046506
    Abstract: This invention relates to a coating method comprising sequentially applying a paint (X) and a paint (Y) to a substrate, and thermally curing two layers simultaneously, wherein the paint (X) contains a binder (XA), the paint (Y) contains a binder (YA) and an alkoxysilyl-containing organopolysiloxane (YB), the alkoxysilyl-containing organopolysiloxane (YB) has a solids content of 0.01 to 20 mass % based on the resin solids content of the binder (YA), and at least one of the paint (X) and the paint (Y) contains a catalyst (C) that promotes hydrolysis condensation of alkoxysilyl.
    Type: Application
    Filed: February 27, 2019
    Publication date: February 18, 2021
    Applicant: KANSAI PAINT CO., LTD.
    Inventors: Kenji MORI, Satoru FURUSAWA
  • Patent number: 10913868
    Abstract: The problem to be solved by the present invention is to provide an aqueous coating composition that can form a multilayer coating film having excellent storage stability, excellent adhesion to plastic base materials, excellent finish, and excellent coating film performance, such as water resistance; and to also provide a coating method using the composition. The present invention provides an aqueous coating composition comprising (A) an aqueous dispersion of a modified polyolefin, (B) an aqueous acrylic resin and/or an aqueous polyester resin, and (C) a phosphoric acid compound represented by a specific formula; and also provides a method for forming a coating film, comprising applying the aqueous coating composition, as well as an article coated with the aqueous coating composition.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: February 9, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Daisuke Takayama, Hironori Tonomura, Naoto Matsushima, Shuichi Nakahara
  • Patent number: 10898923
    Abstract: The present invention relates to an effect pigment dispersion comprising water, a flake aluminum pigment, and a cellulose-based rheology control agent, wherein the effect pigment dispersion contains 0.1 to 10 parts by mass of solids based on 100 parts by mass of all components thereof, the viscosity measured using a Brookfield type viscometer is 400 to 10000 mPa·sec at a rotational speed of 6 revolutions per minute, and the solids content of the flake aluminum pigment is 30 to 200 parts by mass based on 100 parts by mass of the total amount of components other than the flake aluminum pigment in the total solids content.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: January 26, 2021
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Masayuki Itoh, Nobuhiko Narita, Tatsuo Kuramochi, Hisashi Isaka, Hirokazu Okazaki