PURPOSE: To obtain the titled composition having improved impact resilience and fracture strength of vulcanized material, containing a specific conjugated diene polymer and diene polymer rubber in a specific ratio, as a rubber component.
CONSTITUTION: The aimed composition containing (A) 20W100wt% conjugated diene polymer which is a polymer obtained by polymerizing a conjugated diene compound (preferably butadiene) alone or the conjugated diene compound with a vinyl aromatic compound (preferably styrene), wherein a nitrogen-containing vinyl compound shown by the formula [R1 and R3 are H2 or alkyl; R2 is alkyl, trialkylsilyl or aryl; n is 0W1] having 2W200 polymerization degree is bonded to molecular chain and of the polymer, has 10W150 Mooney viscosity and (B) 80W0wt% diene polymer rubber (except polymer of the component A), as a rubber component. The aimed composition is useful as tires, vibration-damping rubber, hose, belt, etc.
TSUTSUMI FUMIO
SAKAKIBARA MITSUHIKO
OSHIMA NOBORU
HAMADA TATSURO
FUKUOKA HIROMI
KOMATSU HIDEKI
FUJIMAKI TATSUO
BRIDGESTONE CORP