Patent ID: 9340663
Filing Date: 2016-05-17
CPC Classification: B60C,C08K,C08L,Y02T

Claim Text:
1. A rubber composition for tires, comprising: a modified diene rubber A which has been modified with an acrylamide compound represented by the following Formula (I): wherein R 1 represents hydrogen or a methyl group; R 2 and R 3 each represent an alkyl group; and n represents an integer; a modified diene rubber B which has been modified with a silicon or tin compound represented by the Formula (II) below and a modifying compound represented by the Formula (III) below or with a modifying compound represented by the Formula (III) below: wherein R represents an alkyl group, an alkenyl group, a cycloalkenyl group, or an aromatic hydrocarbon group; M represents silicon or tin; X represents a halogen; a represents an integer of 0 to 2; and b represents an integer of 2 to 4; wherein R 4 to R 6 are the same as or different from one another, each representing a C1 to C8 alkyl group; R 7 to R 12 are the same as or different from one another, each representing a C1 to C8 alkoxy or alkyl group; and p to r are the same as or different from one another, each representing an integer of 1 to 8; and a silane coupling agent containing a mercapto group, the modified diene rubbers A and B, taken as a whole, having a weight average molecular weight of 300,000 to 1,400,000.