Patent ID: 7700693
Filing Date: 2010-04-20
Classification: B60C,C07D,C08L

Abstract:
1. A conjugated diene rubber composition comprising: (A) 5% to 95% by weight of a conjugated diene rubber having a weight average molecular weight in the range of 1,000 to 3,000,000 wherein at least three conjugated diene polymer chains in said rubber are bonded together through at least one polyorganosiloxane selected from those which are represented by the general formulae (1), (2) and (3), shown below: wherein R (i) a part of the sum of X (i) a part of X X m is an integer of 3 to 200, n is an integer of 0 to 200 and k is an integer of 0 to 200; wherein R (i) a part of the sum of X wherein R (i) a part of the sum of X s is an integer of 1 to 18, and (B) 95% to 5% by weight of conjugated diene rubber having a weight average molecular weight in the range of 1,000 to 3,000,000 which is a reaction product of an active conjugated diene polymer chain having an active metal at a terminal thereof with a compound selected from the group consisting of: N-substituted cyclic amides, N-substituted cyclic ureas, N-substituted amino ketones, aromatic isocyanates, N,N,N′,N′-tetramethylthiourea, N,N-disubstituted aminoalkylmethacrylamides, N-substituted aminoaldehydes, N-substituted carbodiimides, Schiff bases, propylene oxide, tetraglycidyl-1,3-bisaminomethylcyclohexane, epoxidized polybutadiene, vinyl compounds having a pyridyl group, bis(triethoxysilylpropyl)-tetrasulfide, bis(tributoxysilylpropyl)tetrasulfide, γ-glydoxypropyltrimethoxysilane, tetramethoxysilane, tin tetrachloride, silicon tetrachioride, triphenylmonochlorotin, triphenoxychlorosilane, methyltriphenoxysilane, and diphenoxydichlorosilane.