The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2025
Filed:
Mar. 24, 2022
Osaka Gas Co., Ltd., Osaka, JP;
Masahiro Suemitsu, Osaka, JP;
Masayuki Sugimoto, Osaka, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Abstract
The radiative cooling film material includes a film material; and a radiative cooling layer on an outer surface of the film material. The radiative cooling layer includes an infrared radiative layer having a radiative surface for radiating infrared light; and a light reflective layer on a side of the infrared radiative layer, which is opposite to the radiative surface. The infrared radiative layer is a resin material layer including a vinyl chloride resin or a vinylidene chloride resin and having a thickness adjusted so that the resin material layer emits heat radiation energy greater than absorbed solar energy in a wavelength range from 8 μm to 14 μm. The light reflective layer includes silver or a silver alloy, and the radiative cooling film material further includes a film material-side resin layer including a vinyl chloride resin or a vinylidene chloride resin as a rear surface portion of the film material.