Rubber composition

摘要

A rubber composition obtained by kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component and a filler, and a method of improving the viscoelastic property of vulcanized rubber, comprising a first step of kneading at least one selected from the group consisting of (A1), (B1), (C1) and (D1), a rubber component, a filler and a sulfur component and a second step of thermally treating the kneaded material obtained in the previous step.
(A1): a compound represented by formula (I)(B1): a salt of a compound represented by formula (I)(C1): a solvate of a compound represented by formula (I)(D1): a solvate of a salt of a compound represented by formula (I).;

主权项

1. A salt represented by formula (III): in formula (III),
R1 represents an optionally substituted alkanediyl group having 2 to 12 carbon atoms, an optionally substituted cycloalkanediyl group having 3 to 12 carbon atoms or a *—B1—Ar—B2—* group, * represents a connecting bond,B1 represents a single bond or an alkanediyl group having 1 to 12 carbon atoms,B2 represents a single bond or an alkanediyl group having 1 to 12 carbon atoms,Ar represents an optionally substituted di-valent aromatic hydrocarbon group having 6 to 12 carbon atoms,R2 and R3 represent each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms, a hydroxy group or an alkoxy group having 1 to 6 carbon atoms, alternatively, are mutually linked to form an alkanediyl group having 2 to 12 carbon atoms,Yn+ represents an n-valent metal cation, NH4+ or an n-valent organic cation, n represents 1 or 2, andX represents —NH— or —O—.