A polymer composition for a tire having an air permeation coefficient of 25 x 10-12 cc·cm/cm2·sec·cmHg (at 30°C) or less and a Young's modulus of 1 to 500 MPa, including (A) at least 10% by weight, based on the weight of the total polymer component, of at least one thermoplastic resin having an air permeation coefficient of not more than 25 x 10-12 cc·cm/cm2·sec·cmHg (at 30°C) and a Young's modulus of more than 500 MPa and (B) at least 10% by weight, based on the total weight of the polymer component, of at least one elastomer component having an air permeation coefficient of more than 25 x 10-12 cc·cm/cm2·sec·cmHg (at 30°C) and a Young's modulus of not more than 500 MPa, wherein the total amount (A) + (B) of the component (A) and the component (B) is not less than 30% by weight based on the weight of the total polymer component, and a pneumatic tire obtained therefrom.
一种用于轮胎的聚合物组合物,其空气渗透系数为 25 x 10-12 立方厘米/平方厘米-秒-厘米
汞柱(30°C 时)或以下,杨氏模量为 1 至 500 兆帕,包括 (A) 至少 10%(重量百分比)(基于聚合物总组分的重量)的至少一种热塑性
树脂,其空气渗透系数不大于 25 x 10-12 立方厘米/平方厘米-秒-厘米
汞柱(30°C 时),杨氏模量大于 1 至 500 兆帕、至少一种热塑性
树脂,其空气渗透系数不大于 25 x 10-12 cc-cm/cm2-sec-cmHg(30°C 时),杨氏模量大于 500 MPa,以及 (B) 至少 10%(重量百分比)的热塑性
树脂,其空气渗透系数不大于 25 x 10-12 cc-cm/cm2-sec-cmHg(30°C 时),杨氏模量大于 500 MPa、以聚合物组分的总重量为基准,透气系数大于 25 x 10-12 立方厘米/厘米2-秒-厘米
汞柱(30°C 时)且杨氏模量不大于 500 兆帕的至少一种弹性体组分,其中以聚合物组分的总重量为基准,组分(A)和组分(B)的总量(A)+(B)不小于 30%(重量百分比),以及由此获得的充气轮胎。