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Title:
RUBBER COMPOSITION FOR CONSTRUCTION VEHICLE TIRE AND PNEUMATIC TIRE FOR CONSTRUCTION VEHICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/161288
Kind Code:
A1
Abstract:
A rubber composition for a construction vehicle tire, the rubber composition blending 30 to 50 parts by mass of carbon black (A) having a nitrogen adsorption specific surface area of 90 to 130 m2/g, 5 to 20 parts by mass of carbon black (B) having a nitrogen adsorption specific surface area of 60 to 90 m2/g, 5 to 20 parts by mass of silica, and 1 to 10 parts by mass of an aromatic modified terpene resin having a softening point of 100-130 °C; in relation to 100 parts by mass of a diene-based rubber comprising 10 to 50 parts by mass of a styrene-butadiene copolymer rubber having a styrene content of 10 to 30 mass%, and 50 to 90 parts by mass of an isoprene-based rubber including a natural rubber; the total amount of filler being 70 parts by mass or less, and the blended amount of the carbon black (A) satisfying the formula 0.55 ≤ (parts by mass of the carbon black (A)/total parts by mass of the filler) ≤ 0.65.

Inventors:
WAKAMATSU HIROSHI (JP)
Application Number:
PCT/JP2013/002774
Publication Date:
October 31, 2013
Filing Date:
April 24, 2013
Export Citation:
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Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
C08L7/00; B60C1/00; C08K3/04; C08K3/36; C08L9/06; C08L91/00
Foreign References:
JP2008297493A2008-12-11
JP2010077217A2010-04-08
JPH1149893A1999-02-23
JPH0853002A1996-02-27
JP2010084059A2010-04-15
JP2009007422A2009-01-15
JPH0892420A1996-04-09
JP2011252124A2011-12-15
JP2011246561A2011-12-08
JP2012007145A2012-01-12
JPH0790122A1995-04-04
JP2007302716A2007-11-22
Attorney, Agent or Firm:
NODA, SHIGERU (JP)
Noda 茂 (JP)
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