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Title:
A rubber composition and a pneumatic tire
Document Type and Number:
Japanese Patent JP6070754
Kind Code:
B2
Abstract:
An object of the present invention is to provide a rubber composition having excellent processability while excellent heat build-up reduction effect is maintained; and a pneumatic tire that uses the rubber composition. The rubber composition of the present invention contains: a diene rubber containing from 5 to 70 mass % of a modified butadiene rubber obtained by modifying an unmodified butadiene rubber (A) with a carboxy group-containing nitrone compound (B), the unmodified butadiene rubber (A) containing from 2 to 45 parts by mass of an unmodified low molecular weight butadiene rubber (A1) having from 1.5 to 60 mol % of vinyl bonding and having a number average molecular weight (Mn) of 2000 to 60000 per 100 parts by mass of an unmodified butadiene rubber (A2) having a number average molecular weight (Mn) greater than that of the unmodified low molecular weight butadiene rubber (A1).

Inventors:
Kato Manabu
Ryota Takahashi
Takahiro Okamatsu
Kirino Yoshiaki
Application Number:
JP2015081873A
Publication Date:
February 01, 2017
Filing Date:
April 13, 2015
Export Citation:
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Assignee:
THE YOKOHAMA RUBBER CO.,LTD.
International Classes:
C08L13/00; B60C1/00; C08C19/22; C08K3/00; C08L15/00
Domestic Patent References:
JP2013032471A
JP5737439B2
JP2007039499A
JP2008163283A
Attorney, Agent or Firm:
Watanabe Noboru Minoru
Haruko Sanwa
Hideaki Ito
Fumio Mitsuhashi



 
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