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Title:
CAP TREAD RUBBER COMPOSITION FOR PASSENGER CAR TIRE, CAP TREAD RUBBER FOR PASSENGER CAR TIRE, AND PNEUMATIC TIRE FOR PASSENGER CAR
Document Type and Number:
Japanese Patent JP2015042711
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cap tread rubber composition for a passenger car tire, which can give a cap tread rubber for a passenger car tire and a pneumatic tire for a passenger car having high mileage property and wet grip performance (particularly, wet grip performance) equivalent to those of a cap tread rubber for a passenger car tire and of a pneumatic tire for a passenger car using a conventional synthetic rubber, while responding to demands for recycling-oriented society.SOLUTION: The cap tread rubber composition for a passenger car tire contains a biomass-derived rubber which is obtained by polymerizing an aromatic vinyl and dienes and has pMC (percent Modern Carbon) of 1% or more measured in accordance with ASTMD6866-10.

Inventors:
KOJIMA RYOJI
YOKOYAMA YUKA
Application Number:
JP2013174630A
Publication Date:
March 05, 2015
Filing Date:
August 26, 2013
Export Citation:
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Assignee:
SUMITOMO RUBBER IND LTD
International Classes:
C08L9/06; B60C1/00
Domestic Patent References:
JP2012518658A2012-08-16
JP2013516487A2013-05-13
JP2012153654A2012-08-16
JP2012246411A2012-12-13
JP2004231524A2004-08-19
JP2000319154A2000-11-21
JP2014051617A2014-03-20
JP2016505645A2016-02-25
JP2013535203A2013-09-12
Foreign References:
US20100216958A12010-08-26
US20110172475A12011-07-14
US20130090445A12013-04-11
US20150266988A12015-09-24
WO2014074872A12014-05-15
US20150274944A12015-10-01
WO2012018624A22012-02-09
US20120021478A12012-01-26
Attorney, Agent or Firm:
Patent business corporation Yasutomi international patent firm