Title:
RUBBER COMPOSITION FOR TYRE TREADS
Document Type and Number:
WIPO Patent Application WO/2011/148965
Kind Code:
A1
Abstract:
The disclosed rubber composition for tyre treads includes a diene rubber containing at least 80 weight % of three kinds of rubber comprising E-SBR, modified S-SBR and natural rubber. 100-140 parts by weight of a filler are combined per 100 parts by weight of the diene rubber, with the filler containing at least 70 weight % of silica. The diene rubber contains 10-25 weight % of natural rubber; the weight ratio of the three kinds of rubber (E-SBR: modified S-SBR: NR) is (1-2):(2.5-4):1; the styrene inclusion amount of the E-SBR and the modified S-SBR is 35-40 weight %; and the difference between the glass transition temperature of the E-SBR and that of the modified S-SBR is not greater than 10˚C.
Inventors:
HIROSE, Yoshio (2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
JP2011/061946
Publication Date:
December 01, 2011
Filing Date:
May 25, 2011
Export Citation:
Assignee:
THE YOKOHAMA RUBBER CO., LTD. (36-11, Shimbashi 5-chome Minato-k, Tokyo 85, 〒1058685, JP)
横浜ゴム株式会社 (〒85 東京都港区新橋５丁目３６番１１号 Tokyo, 〒1058685, JP)
横浜ゴム株式会社 (〒85 東京都港区新橋５丁目３６番１１号 Tokyo, 〒1058685, JP)
International Classes:
C08L15/00; B60C1/00; C08K3/36; C08L7/00; C08L9/06; C08L45/00; C08L65/00
Attorney, Agent or Firm:
FUKUMOTO, Masahiko (117-205, Sato Nakamonden Kamo-cho, Kizugawa-sh, Kyoto 52, 〒6191152, JP)
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Claims: