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. 24, 2014
Filed:
Sep. 30, 2010
Takayuki Hattori, Kobe, JP;
Ai Matsuura, Kobe, JP;
Hiroshi Ito, Kobe, JP;
Jun Okamoto, Kobe, JP;
Takao Wada, Kobe, JP;
Takayuki Hattori, Kobe, JP;
Ai Matsuura, Kobe, JP;
Hiroshi Ito, Kobe, JP;
Jun Okamoto, Kobe, JP;
Takao Wada, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
The present invention has its object to provide a rubber composition for a tread which can prevent reversion and can also achieve environmental performance (excellent rolling resistance, response to depletion of oil resources, attention to COemission), wet grip performance, dry grip performance, handling stability, and durability (abrasion resistance, crack resistance) in a well-balanced manner. The present invention also aims to provide a pneumatic tire using the rubber composition for the tread thereof. The rubber composition for a tread includes a rubber component containing 35% by mass or more of an epoxidized natural rubber; and a white filler, wherein a total sulfur content is less than 1.75% by mass, and a crosslink density is 7.0×10mol/cmor more.