US 11,767,418 B2 · Rubber composition

Abstract

The present invention relates to a rubber composition with an excellent grip force; a method of producing the rubber composition; a shoe sole, a shoe, and a tire each using the rubber composition; and a method of improving a frictional force of a rubber component. The present invention is concerned with [1] a rubber composition containing a rubber component (A), a lignin degradation product (B), and a specified amine compound (C); [2] a rubber composition composed of a blend of a rubber component (A), a lignin (B), and a specified amine compound (C); [3] a shoe sole using the aforementioned rubber composition; [4] a shoe having the aforementioned shoe sole; [5] a tire using the aforementioned rubber composition; [6] a method of producing a rubber composition, including blending a rubber component (A), a lignin (B), and a specified amine compound (C) and vulcanizing the blend; and [7] a method of improving a frictional force of a rubber component, including blending a rubber component (A), a lignin (B), and a specified amine compound (C).

Claims10

Dependent claims

A method of improving a frictional force of a rubber component, the method comprising:

blending a rubber component (A), a lignin (B), and an amine compound (C) represented by formula (1):
wherein:
R1 represents a hydrocarbon group or an acyl group each having 8 or more and 22 or less carbon atoms;
Z1 represents a single bond, —OR4—, or —NHR5—;
R2 represents a hydrocarbon group having 1 or more and 22 or less carbon atoms or —(R6O)mH;
R3 represents a hydrocarbon group having 1 or more and 4 or less carbon atoms or —(R7O)nH, provided that when Z1 is a single bond, then R1 is a hydrocarbon group;
and
R4 and R5 each independently represent an alkanediyl group having 2 or more and 6 or less carbon atoms;
R6 and R7 each independently represent an alkanediyl group having 2 or more and 4 or less carbon atoms;
m and n each represent an average addition molar number and are a number of more than 0;
and
(m+n) represents a number of 1 or more 30 or less.

9 more elements

Dependencies are inferred from the claim text.

Rubber composition

Life of this patent

Rubber composition

Life of this patent

Abstract

Claims10