Patent ID: 9637618
Date: 2017-05-02
CPC Classifications: B60C,C08C,C08K,C08L

Claim:
1. A rubber composition for a bead filler, the rubber composition comprising: a diene rubber; a carbon black; and a nitrone compound having a carboxy group; the diene rubber comprising a natural rubber and a styrene-butadiene rubber, wherein a content of the natural rubber in a total of the diene rubber and the nitrone compound is not less than 60 mass %, and a content of the styrene-butadiene rubber in a total of the diene rubber and the nitrone compound is not greater than 40 mass %; a content of the carbon black being from 40 to 80 parts by mass per 100 parts by mass of a total of the diene rubber and the nitrone compound; and a content of the nitrone compound being from 0.1 to 10 parts by mass per 100 parts by mass of a total of the diene rubber and the nitrone compound.