BEAD FILLER RUBBER COMPOSITION AND PNEUMATIC TIRE

WIPO Patent Application WO/2015/173994

A1

The purpose of the present invention is to provide: a bead filler rubber composition that has excellent low heat generation properties after vulcanization and that has a high modulus; and a pneumatic tire that is produced using the rubber composition. This bead filler rubber composition comprises a diene rubber, a carbon black, and a nitrone compound that has a carboxy group. The diene rubber comprises natural rubber and a styrene-butadiene rubber. The content of the natural rubber in the total of the diene rubber and the nitrone compound is 60 mass% or more. The content of the styrene-butadiene rubber in the total of the diene rubber and the nitrone compound is 40 mass% or less. The content of the carbon black is 40-80 parts by mass with respect to a total of 100 parts by mass of the diene rubber and the nitrone compound. The content of the nitrone compound is 0.1-10 parts by mass with respect to a total of 100 parts by mass of the diene rubber and the nitrone compound.

JP4686003	Use of low hysteresis composition with specific cohesiveness to improve the life of radial carcass tires
JPS6111066	GOLF BALL
JPS5262368	CAULKING MATERIAL COMPOSITIONS

KATO MANABU (JP)
TAKAHASHI RYOTA (JP)
OKAMATSU TAKAHIRO (JP)
KIRINO YOSHIAKI (JP)

PCT/JP2014/083770

November 19, 2015

December 19, 2014

Click for automatic bibliography generation  

YOKOHAMA RUBBER CO LTD (JP)

C08L7/00; B60C1/00; C08K3/04; C08K5/32; C08L9/06; C08L15/00

JP2010241898A	2010-10-28
JP2008127464A	2008-06-05
JP2013159717A	2013-08-19
JP2013543516A	2013-12-05

WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)

View/Download PDF      PDF Help

Previous Patent: RUBBER COMPOSITION FOR HEAVY-LOAD TIRE, AND PNEUMATIC TIRE

Next Patent: METHOD FOR EVALUATING SOI SUBSTRATE