Title:
RADIATIVE COOLING DEVICE AND COOLING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/193112
Kind Code:
A1
Abstract:
The present invention provides, at low cost, a radiative cooling device which has a radiation surface that becomes colored. A radiative cooling device CP is provided with: an infrared radiation layer A which radiates infrared light IR from a radiation surface H; a light reflection layer B located on the opposite side of the infrared radiation layer A from the side where the radiation surface H is present; and a colored portion X. The infrared radiation layer A is a resin material layer J having a thickness which is adjusted such that thermal radiation energy greater than absorbed sunlight energy is radiated within a wavelength band of 8-14 μm, and the colored portion X contains a colorant which absorbs light in a visible light region.
Inventors:
SUEMITSU MASAHIRO (JP)
SUGIMOTO MASAYUKI (JP)
SUGIMOTO MASAYUKI (JP)
Application Number:
PCT/JP2021/009828
Publication Date:
September 30, 2021
Filing Date:
March 11, 2021
Export Citation:
Assignee:
OSAKA GAS CO LTD (JP)
International Classes:
B32B27/00; B32B7/023; B32B7/027; B32B27/20; G02B5/08; G02B5/26
Domestic Patent References:
| WO2020022156A1 | 2020-01-30 |
Foreign References:
| JP2018203610A | 2018-12-27 | |||
| JP2003127259A | 2003-05-08 |
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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