Title:
MULTI-LAYER COATING FILM AND METHOD FOR FORMING MULTI-LAYER COATING FILM
Document Type and Number:
WIPO Patent Application WO/2017/122734
Kind Code:
A1
Abstract:
Provided are: a multi-layer coating film, which has an infrared reflective coating film having both high infrared light reflectivity and high visible light transmittance, and has an infrared light reflectivity higher than that of a mono-layered base layer; and a method for forming the multi-layer coating film. In the multi-layer coating film, the infrared reflective coating film includes a scaly infrared reflective pigment and a resin; the infrared reflective pigment is provided with a laminated body, in which a dielectric layer and a metal thin film layer are alternately laminated and the dielectric layer is provided as the outermost layer; the dielectric layer is made of one or two or more selected from the group consisting of titanium dioxide, niobium pentoxide, cerium oxide, tin-doped indium oxide, zinc oxide and tin oxide; the metal thin film layer is made of a silver compound and has a film thickness of 5-15 nm; when the wavelength λ of incident light in and around the visible region is 250-980 nm and the refractive index of the dielectric layer is r, the film thickness of the dielectric layer is ((Nλ)/(4r))±20nm (where N is 1, 2, or 3); and the infrared reflectivity R1 of the base coating film is less than 80%, and the infrared reflectivity R2 of the infrared reflective coating film is higher than R1.
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Inventors:
FUJITA TAKESHI (JP)
ONISHI ISAMU (JP)
ADACHI YOICHI (JP)
SUZUKI GO (JP)
KAMAYA KAZUYUKI (JP)
ONISHI ISAMU (JP)
ADACHI YOICHI (JP)
SUZUKI GO (JP)
KAMAYA KAZUYUKI (JP)
Application Number:
PCT/JP2017/000851
Publication Date:
July 20, 2017
Filing Date:
January 12, 2017
Export Citation:
Assignee:
NIPPON PAINT HOLDINGS CO LTD (JP)
International Classes:
B32B27/20; B05D1/36; B05D5/06; B05D7/24; C09D7/12; C09D201/00
Foreign References:
| JPH09508172A | 1997-08-19 | |||
| JP2015124360A | 2015-07-06 | |||
| JP2000212475A | 2000-08-02 | |||
| JP2015202611A | 2015-11-16 | |||
| JP2013518953A | 2013-05-23 | |||
| JP2002020647A | 2002-01-23 | |||
| JP2002320912A | 2002-11-05 | |||
| JP2001262016A | 2001-09-26 | |||
| JP2004162020A | 2004-06-10 | |||
| JP2004004840A | 2004-01-08 | |||
| JPH0578544A | 1993-03-30 | |||
| JPH02173060A | 1990-07-04 | |||
| JP2010260905A | 2010-11-18 |
Other References:
THE JAPANESE RESEARCH ASSOCIATION FOR ORGANIC ELECTRONIC MATERIALS: "Imaging Organic Materials", 1993, BUNSHIN PUBLISHING COMPANY, pages: 187 - 192
See also references of EP 3403824A4
See also references of EP 3403824A4
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (JP)
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