| 摘要 |
PURPOSE: Provided is a tread rubber composition which comprises 3-10 phr of SRS-40VP having excellent anti-slipping property, with respect to 100 phr of rubber material, and shows excellent anti-slipping property. CONSTITUTION: The composition comprises 3-10 phr of SRS-40VP which is anti-slip, with respect to 100 phr of rubber material. The rubber material comprises 10-30 phr of natural rubber, 30-80 phr of styrene butadiene rubber(SBR), and 10-40 phr of butadiene rubber(BR). The SRS-40VP is produced by blending 90% of polynorbornene having molecular weight of 100000-400000, 5% of processing oil(aromatic oil), and 5% of others(consisting of sulfur, diphenylguanidine(DPG), N-cyclohexyl-2-bentothiazole sulfenamide(CZ) in ratio of 2:2:5), curing the blend at 180 deg.C for 30-50 minutes, and crushing the cured blend in crusher to particle size of 100 mesh or less. |
