Patent ID: 9518172
Filing Date: 2016-12-13
CPC Classification: C08K,C08L

Claim Text:
1. A rubber composition comprising, as blended, a rubber component (A), an amino acid derivative (B) and a filler containing an inorganic filler (C), and further containing, as incorporated therein, at least one selected from sulfur and a sulfur compound, in which the amino acid derivative (B) is represented by the following formula (Ic): in the formula, X represents a divalent hydrocarbon group having a linear alkylene group and having from 1 to 10 carbon atoms, Y and Z each independently represent a single bond or an alkylene group having from 1 to 10 carbon atoms, R h is selected from a hydrogen atom, an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group and an alkali metal, R j and R k are a hydrogen atom, the —COO moiety may form a salt with an amine, the —NR j R k moiety may form a salt with an acid, however, when R h is a hydrogen atom, the compound must form a salt, and in case where the compound does not form a salt, R h is not a hydrogen atom.