A rubber-steel cord adhesion promoter represented by the general formula
wherein Y1, Y2 and Y3 are identical or different and each represents a resin acid radical, a naphthenic acid radical or an aliphatic monocarboxylic acid radical having 7 to 24 carbon atoms provided that Y1, Y2 and Y3 are not simultaneously aliphatic monocarboxylic acid radicals having 7 to 15, particularly 7 to 11, carbon atoms. The promoter aids in imparting a high rubber-to-steel cord adhesion strength which is retained for an extended period of time even at high temperature and humidity
一种橡胶-钢帘线粘合
促进剂,由通式表示,其中 Y1、Y2 和 Y3 相同或不同,且各自代表具有 7 至 24 个碳原子的
树脂酸基、
环烷酸基或脂肪族一
羧酸基,但 Y1、Y2 和 Y3 不能同时代表具有 7 至 15 个碳原子(尤其是 7 至 11 个碳原子)的脂肪族一
羧酸基。 该
促进剂有助于赋予橡胶-钢帘线较高的粘合强度,即使在高温高湿条件下也能保持较长的粘合强度