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:
May. 03, 2022
Filed:
Dec. 21, 2021
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventor:
Hideki Yasuda, Kanagawa, JP;
Assignee:
FUJIFILM CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C09K 5/14 (2006.01); F28F 21/06 (2006.01); D04H 1/4291 (2012.01);
U.S. Cl.
CPC ...
C09K 5/14 (2013.01); C08J 5/18 (2013.01); D04H 1/4291 (2013.01); F28F 21/067 (2013.01); C08J 2323/06 (2013.01); F28F 2245/00 (2013.01);
Abstract
The present disclosure provides a polyolefin film including a fibrous polyolefin having an average diameter of 0.1 μm or more and less than 1.0 μm, wherein the polyolefin film has a connected-void structure, has a void ratio a of 50% to 90%, has a thickness d in μm, which satisfies, together with the void ratio a, a relation of 40≤(d×(100−a)/100)≤200, and is used as a radiative cooling film, and a radiative cooling structure body including the polyolefin film.