RUBBER COMPOSITION AND PNEUMATIC TIRE

WIPO Patent Application WO/2018/101360

A1

The main purpose of the present invention is to provide a rubber composition which has excellent workability and has an excellent balance of rolling resistance and wet grip performance.　The present invention solves this problem by providing a rubber composition obtained by combining 1 part by mass to 200 parts by mass of a hydrocarbon resin per 100 parts by mass of a diene rubber, the rubber composition being characterized in that the hydrocarbon resin includes aliphatic monomer units and aromatic monomer units, the content among the aromatic monomer units of monomer units that have a structure in which two or more cyclic structures are bonded together is at least 50 mass% of the aromatic monomer units, the weight average molecular weight (Mw) of the hydrocarbon resin is in the range of 700–6000, and the softening point of the hydrocarbon resin is in the range of 80°C–150°C.

JP2001316560	RUBBER COMPOSITION
WO/2009/125747	RUBBER COMPOSITION FOR TIRE AND TIRE
JP6304924	Rubber composition for sidewalls and pneumatic tires

NOZAWA ATSUSHI (JP)
KAMEYAMA RYOJI (JP)
HASHIMOTO SADAHARU (JP)

PCT/JP2017/042901

June 07, 2018

November 29, 2017

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ZEON CORP (JP)

C08L9/00; B60C1/00; C08L23/18

WO2013115010A1	2013-08-08
WO2013132905A1	2013-09-12

JP2014224196A	2014-12-04
JP2015086315A	2015-05-07
JP2015007194A	2015-01-15
JPH0649282A	1994-02-22
JP2009019154A	2009-01-29
JP2014088544A	2014-05-15
JP2016512183A	2016-04-25
US20140044918A1	2014-02-13

YAMASHITA, Akihiko et al. (JP)

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