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:
Nov. 22, 2016
Filed:
Feb. 22, 2013
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Daisuke Ota, Settsu, JP;
Akinori Ueda, Settsu, JP;
Yuu Kadowaki, Settsu, JP;
Mayuko Taeda, Settsu, JP;
Masanori Kitaichi, Settsu, JP;
Kazuhiro Yamamura, Settsu, JP;
Michiko Doi, Settsu, JP;
Shoji Fukuoka, Settsu, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A fluororubber composition which includes a fluororubber (A) and a carbon black (B). The fluororubber (A) is a vinylidene fluoride-based fluororubber including a structural unit (VdF unit) derived from vinylidene fluoride and a structural unit derived from at least one monomer selected from the group consisting of hexafluoropropylene (HFP), 2,3,3,3-tetrafluoro propylene, and perfluoro(alkyl vinyl ether) (PAVE). The molar ratio of the VdF unit to the structural unit derived from at least one monomer selected from the group consisting of HFP, 2,3,3,3-tetrafluoro propylene, and PAVE is 50/50 to 78/22. The fluororubber composition has a difference δG' (G′ (1%)-G′ (100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G′ (1%) denotes a modulus of shearing elasticity at a dynamic strain of 1%, G′ (100%) denotes a modulus of shearing elasticity at a dynamic strain of 100%, and G′ (1%) and G′ (100%) are determined by a dynamic viscoelasticity test.