| 摘要 |
PURPOSE:To obtain a rubber composition excellent in O3 deterioration resistance, weathering resistance and appearance by mixing a diene polymer with a specified wax in a specified ratio. CONSTITUTION:100 pts.wt. diene polymer (e.g. styrene/butadiene rubber) is mixed with 1.0-7.5 pts.wt. wax containing 25-40wt.%, based on the total wax, 60-120C linear hydrocarbon and having a penetration (JIS-K2530) of 10 or below. |
