Title:
TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/158509
Kind Code:
A1
Abstract:
Provided are a tire rubber composition wherein wet traction, steering stability, low rolling resistance, and abrasion resistance have been improved while hardness has been maintained, and a pneumatic tire using same. The disclosed tire rubber composition is produced by blending, in 100 parts by mass of diene rubber, 60-120 parts by mass of silica with a nitrogen adsorption specific surface area of 170-225 m2/g, 4-10 mass% of silane coupling agent with respect to said silica, softening agent components comprising terpene resin and oil in an amount that is ½ of the amount of said silica blended or less (provided that 1 part by mass or more of said terpene resin is blended), and 0.5-10 parts by mass of a mixture of fatty acid metal salt (excluding zinc salts) and fatty acid ester. The disclosed pneumatic tire uses said tire rubber composition.
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Inventors:
HIROSE, Yoshio (Hiratsuka Factory, 2-1, Oiwake, Hiratsuka-sh, Kanagawa 01, 〒2548601, JP)
Application Number:
JP2011/003444
Publication Date:
December 22, 2011
Filing Date:
June 16, 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:
C08L9/00; B60C1/00; C08K3/36; C08K5/098; C08K5/101; C08K5/54; C08L45/00; C08L91/00
Attorney, Agent or Firm:
NODA, Shigeru (Floor 4, Yamamoto Bldg. 2, Kagurazaka 4-chome, Shinjuku-k, Tokyo 25, 〒1620825, JP)
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Claims:
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