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. 04, 2020
Filed:
Jul. 04, 2013
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Kyouhei Sawaki, Settsu, JP;
Hideki Kono, Settsu, JP;
Hitoshi Imamura, Settsu, JP;
Takahisa Aoyama, Settsu, JP;
Masamichi Sukegawa, Settsu, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
The present invention aims to provide a modified fluorine-containing copolymer excellent in crack resistance, a fluororesin molded article, and a method of producing a fluororesin molded article. The present invention includes a modified fluorine-containing copolymer consisting only of tetrafluoroethylene units and perfluoro(alkyl vinyl ether) units. The copolymer is modified by irradiation with radiation at an irradiation temperature not higher than the melting point of the copolymer but not lower than 200° C.