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:
Sep. 12, 2006
Filed:
Jan. 17, 2003
Hideki Kono, Settsu, JP;
Takayuki Hirao, Orangeburg, NY (US);
George Lin, Orangeburg, NY (US);
Kazuyuki Fukuda, Settsu, JP;
Hideki Kono, Settsu, JP;
Takayuki Hirao, Orangeburg, NY (US);
George Lin, Orangeburg, NY (US);
Kazuyuki Fukuda, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A fluorine-containing copolymer obtained by copolymerizing tetrafluoroethylene, hexafluoropropylene and perfluoro vinyl ether as component monomers, wherein a weight ratio of tetrafluoroethylene, hexafluoropropylene and perfluoro vinyl ether units constituting the fluorine-containing copolymer is 70 to 95: 5 to 20: 0 to 10, respectively; the fluorine-containing copolymer having: a melt flow rate of 30 (g/10 minutes) or more; a volatile content index of 0.2% by weight or less; and a stress relaxation modulus G(t) (unit: dyn/cm) which satisfies the following formula at t=0.1 second when measured at a temperature of 310° C.:(0.1)>7×10×X−3000where X denotes the melt flow rate (unit: g/10 minutes). Also disclosed is an insulating material composed of the fluorine-containing copolymer and an insulated cable having a core conductor coated with the fluorine-containing copolymer.