Invention Application
- Patent Title: PNEUMATIC TIRE
- Patent Title (中): 气动轮胎
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Application No.: US14913225Application Date: 2014-08-18
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Publication No.: US20160200901A1Publication Date: 2016-07-14
- Inventor: Tsuyoshi TSUCHIDA , Tatsuya MIYAZAKI , Soh ISHINO
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Kobe-shi, Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-shi, Hyogo
- Priority: JP2013-192066 20130917
- International Application: PCT/JP2014/071526 WO 20140818
- Main IPC: C08L9/06
- IPC: C08L9/06

Abstract:
Provided is a pneumatic tire including a tread formed from a specified rubber composition, thereby achieving a balanced improvement in fuel economy, wet-grip performance, and abrasion resistance while simultaneously having excellent durability. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing: an oil-extended BR having a cis content of 95 mol % or more, a vinyl content of 1 mol % or less, and a weight average molecular weight of 530,000 or more; a SBR having a bound styrene content of 30-50% by mass and a weight average molecular weight of 700,000 or more; silica; and carbon black, the oil-extended BR being synthesized using a rare earth catalyst, the rubber composition containing, based on 100% by mass of rubber solids, 10-67% by mass of the BR component contained in the oil-extended BR and 10-50% by mass of the SBR.
Public/Granted literature
- US10046600B2 Pneumatic tire Public/Granted day:2018-08-14
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