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:
Jun. 30, 2026
Filed:
Jul. 06, 2022
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Yoshito Tanaka, Osaka, JP;
Makoto Matsuura, Osaka, JP;
Yuuki Suzuki, Osaka, JP;
Akitoshi Ogata, Osaka, JP;
Satoru Yoneda, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 214/18 (2006.01); C09D 5/24 (2006.01); C09D 7/20 (2018.01); C09D 127/12 (2006.01);
U.S. Cl.
CPC ...
C08F 214/182 (2013.01); C09D 5/24 (2013.01); C09D 7/20 (2018.01); C09D 127/12 (2013.01);
Abstract
An object of the present disclosure is to provide, for example, a fluoropolymer electret material with hardness. The present disclosure relates to an electret material comprising a fluoropolymer, wherein the fluoropolymer comprises, as a main component, a monomer unit represented by formula (1): wherein Rto Rare each independently a fluorine atom, a fluoroalkyl group, or a fluoroalkoxy group; and the fluoropolymer has a mass average molecular weight of 1 million or more and 5 million or less, or 5000 or more and less than 20000.