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:
Oct. 05, 2021
Filed:
Jan. 16, 2018
Applicant:
Kureha Corporation, Tokyo, JP;
Inventors:
Nobufumi Sato, Tokyo, JP;
Kazuyuki Kanno, Tokyo, JP;
Yusuke Sato, Tokyo, JP;
Keiko Aita, Tokyo, JP;
Hisaaki Terashima, Tokyo, JP;
Assignee:
KUREHA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08L 25/06 (2006.01); H01B 3/44 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08L 25/06 (2013.01); H01B 3/44 (2013.01); C08J 2327/16 (2013.01);
Abstract
A vinylidene fluoride resin film is produced by using a film composition containing at least a vinylidene fluoride resin and organic particles. The vinylidene fluoride resin film includes a plurality of protrusions on at least one surface thereof. Among the plurality of protrusions, the number of protrusions greater than 0.10 μm in height from a flat surface at which the protrusions are not present is from 40 to 400, per 0.10 mmof the vinylidene fluoride resin film.