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:
Jan. 10, 2023
Filed:
Nov. 08, 2018
Daikin Industries, Ltd., Osaka, JP;
Ryouichi Yano, Osaka, JP;
Tatsuya Funaoka, Osaka, JP;
Takahiro Kitahara, Osaka, JP;
Takashi Sekiguchi, Osaka, JP;
Kazunobu Uchida, Osaka, JP;
Yuuko Takano, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
An ethylene/tetrafluoroethylene copolymer satisfying the following formula (1), wherein peak intensities, determined by Fourier transform infrared spectroscopy, of vibrations derived from a —CFH group, a —CFCHCOF group, a —COF group, a —COOH group, a dimer of a —CFCOOH group and a monomer of a CFCHCOOH group, a —COOCHgroup, a —CONHgroup, and a —CHOH group satisfy the following formula (2):75≤tan δ(60)/tan δ(5)×100≤225  (1)PI/(PI+PI+PI+PI+PI+PI+PI)≥0.60  (2)