中科微点-全球专利检索

  1. Login
  2. Sign Up
Invention Publication
CN107108909A 硫化橡胶组合物的制备方法，硫化橡胶组合物以及使用其的无钉防滑轮胎 有权

硫化橡胶组合物的制备方法，硫化橡胶组合物以及使用其的无钉防滑轮胎
Abstract:
根据本发明的硫化橡胶组合物的制备方法，其包括(a)制备包含丁二烯橡胶和二氧化硅的母料的步骤，(b)制备包含异戊二烯橡胶和二氧化硅的母料的步骤，(c)将(a)中得到的母料与(b)中得到的母料混炼的步骤，以及(d)硫化(c)中得到的混炼物的步骤，其中，所获得的硫化橡胶组合物包含彼此不相容的BR相和IR相，并且包含预定量的萜烯树脂，BR相中的二氧化硅的预定丰度比α满足0.3≤α≤0.7(关系式1)，丁二烯橡胶的比例β满足0.4≤β≤0.8(关系式2)，所述制备方法可良好平衡地提高冰上性能，湿性能和耐磨性，并提供具有优异的冰上性能，湿性能和耐磨性的硫化橡胶组合物，以及具有使用该硫化橡胶组合物制成的胎面的无钉防滑轮胎。
Abstract(English):

This method for producing a vulcanized rubber composition comprises (a) a step for preparing a master batch including a butadiene rubber and silica, (b) a step for preparing a master batch including an isoprene-based rubber and silica, (c) a step for kneading the master batch of (a) and the master batch of (b), and (d) a step for vulcanizing the kneaded product obtained in (c), wherein: the obtained vulcanized rubber composition has a BR phase and an IR phase that are incompatible with one another, and includes a predetermined amount of a terpene-based resin; the abundance ratio alpha of silica in a predetermined BR phase is 0.3 <= alpha <= 0.7 (formula 1); and the proportion beta of the butadiene rubber is 0.4 <= beta <= 0.8 (formula 2). Accordingly, this method can improve on-ice performance, wet performance, and wear resistance in a balanced manner, and can provide: a vulcanized rubber composition that has excellent on-ice performance, wet performance, and wear resistance; and a studless tire using said vulcanized rubber composition as a constituent of a tread.

Public/Granted literature
Patent Agency Ranking
0/0