Title:
MULTI-LAYER COATING FILM AND MULTI-LAYER COATING FILM FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/054709
Kind Code:
A1
Abstract:
The present invention provides, to a multi-layer coating film having a coating film with low brightness, a unique design different from conventional designs. This multi-layer coating film at least includes a first coating film and a second coating film. The first coating film is a cured coating film of a first coating material composition containing a coloring pigment and a first coating film forming resin. The second coating film is a cured coating film of a second coating material composition containing a coloring pigment and a second coating film forming resin. The first coating film has, at an incidence angle of 45° and an acceptance angle of 45°, a chroma C* of 10 or less, and a brightness L* of 10 or less. The second coating film, by itself, has a light transmittance of 3-35% at wavelengths of 410-440 nm and 510-590 nm, and a light transmittance of 85-95% at wavelengths of 650-700 nm.
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Inventors:
YABUSHITA CHISATO (JP)
KAMBAYASHI YUKA (JP)
UEHARA TAMAMI (JP)
MARUOKA YUI (JP)
KAMBAYASHI YUKA (JP)
UEHARA TAMAMI (JP)
MARUOKA YUI (JP)
Application Number:
PCT/JP2021/032431
Publication Date:
March 17, 2022
Filing Date:
September 03, 2021
Export Citation:
Assignee:
NIPPON PAINT AUTOMOTIVE COATINGS CO LTD (JP)
International Classes:
B05D1/36; B05D3/00; B05D5/06; B05D7/24; B32B27/20; C09D7/61; C09D201/00
Domestic Patent References:
WO2018061217A1 | 2018-04-05 | |||
WO2013039066A1 | 2013-03-21 |
Foreign References:
JPH1080661A | 1998-03-31 | |||
JP2000178478A | 2000-06-27 | |||
JPH05132635A | 1993-05-28 | |||
JP2011122036A | 2011-06-23 | |||
JP5765741B2 | 2015-08-19 | |||
JP2015127129A | 2015-07-09 | |||
JP2008062198A | 2008-03-21 | |||
JPH03157167A | 1991-07-05 | |||
JPH01168388A | 1989-07-03 |
Other References:
MASUDA YUTAKA: "Takao Egawa Tsukasa Fujieda "R2C" Translator to Convert Refl ectance into Color", PAINT RESEARCH, KANSAI PAINT CO.,LTD., vol. 150, 1 October 2008 (2008-10-01), XP055911691, ISSN: 0387-1347
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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