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, 2015
Filed:
Aug. 25, 2010
Masashi Yano, Kodaira, JP;
Daisuke Ota, Settsu, JP;
Shuichi Okutsu, Kamakura, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
E.I. DU PONT DE NEMOURS AND COMPANY, Wilmington, DE (US);
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A fluoro rubber composition which is able to make both a high tensile strength and a high elongation at break after vulcanization compatible with each other and from which favorable mechanical characteristics are obtained even in a high-temperature environment; and a bladder for tire fabrication, which is manufactured using the same are provided. The fluoro rubber composition includes a rubber component containing a fluoro rubber and carbon black, wherein in a dynamic viscoelasticity test of an unvulcanized rubber by a rubber process analyzer (RPA) (measurement temperature: 100° C., measurement frequency: 1 Hz), a difference δG' (G′(1%)−G′(100%)) between a shear modulus G′ (1%) at the time of a dynamic strain of 1% and a shear modulus G′ (100%) at the time of a dynamic strain of 100% is 120 kPa or more and not more than 3,000 kPa.