| 摘要 |
PURPOSE: A rubber composition for an innerliner of tubeless type radial pneumatic tire for truck and bus which can improve air permeation resistance, anti-fatigue property and anti-cracking property is provided. CONSTITUTION: The rubber composition for an innerliner of tubeless type radial pneumatic tire for truck and bus comprises 100 parts by weight of a halogenated butyl rubber, and 60 to 90 parts by weight of carbon black having an iodine adsorption surface area of 20 to 25 mg/g and DBP oil absorption of 45 to 55 ml. The rubber composition may further comprise other additives such as oil, processing aids, a resin, stearic acid, a vulcanization accelerator, a vulcanizing agent and sulfur. |
