Title:
RADIATIVE COOLING PAINT HAVING IMPROVED SOLAR REFLECTIVITY
Document Type and Number:
WIPO Patent Application WO/2023/239140
Kind Code:
A1
Abstract:
The present invention pertains to a radiative cooling paint comprising ceramic microparticles acting as a pigment, a polymer resin acting as a binder, and a solvent, wherein the radiative cooling paint forms a paint coating layer when applied to a substrate, the paint coating layer reflects incident sunlight as much as possible and minimizes the absorption thereof, while maximizing the emission of infrared rays having a long wavelength of 8-13 μm to prevent the inflow of energy from incident sunlight and increase energy discharge through the emission of the long-wavelength infrared rays, thus performing a radiative cooling function, and the paint coating layer may be formed to contain 3-50% by volume of pores in order to enhance the reflection of incident sunlight without reducing the emission of the long-wavelength infrared rays.
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Inventors:
LEE HEON (KR)
Application Number:
PCT/KR2023/007724
Publication Date:
December 14, 2023
Filing Date:
June 07, 2023
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
C09D5/33; C09D7/20; C09D7/40; C09D7/61; C09D175/04; C09D201/00
Foreign References:
| KR102271456B1 | 2021-07-02 | |||
| KR20200063505A | 2020-06-05 | |||
| CN114506141A | 2022-05-17 | |||
| JPH11323197A | 1999-11-26 | |||
| US20210403726A1 | 2021-12-30 | |||
| KR2023007724W | 2023-06-07 | |||
| KR20220069730A | 2022-05-27 |
Attorney, Agent or Firm:
KIM, Youn Gwon (KR)
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