There is provided a power transmission belt which comprises a compression layer and an adhesive rubber layer which are adhered to each other by vulcanizing together and which has aramid fiber cords embedded in the adhesive rubber layer, wherein the compression layer and the adhesive rubber layer are formed of vulcanizate of an ethylene-&agr;-olefin-diene rubber compound and wherein the aramid fiber cords having a first twisting coefficient and a final twisting coefficient both in the range from 650 to 950 are adhesion treated with a resorcin-formalin-latex adhesive composition wherein the latex comprises at least one of chlorosulfonated polyethylene and alkylated chlorosulfonated polyethylene in an amount of 50-100% by weight based on the solid components of the resorcin-formalin-latex and adhered to and embedded in the adhesive rubber layer. A process for the production of such power transmission belt is also provided.
本发明提供了一种动力传输皮带,其包括一个压缩层和一个粘合橡胶层,它们通过
硫化黏合在一起,并且在粘合橡胶层中嵌入了芳纶纤维绳,其中压缩层和粘合橡胶层由
乙烯-α-烯烃-二烯橡胶复合物的
硫化物形成,芳纶纤维绳的第一扭曲系数和最终扭曲系数都在650至950的范围内,并且用
间苯二酚-
福尔马林-乳胶粘合剂组合物进行粘接处理,其中乳胶包括至少一种
氯磺化聚
乙烯和烷基化
氯磺化聚
乙烯,其占
间苯二酚-
福尔马林-乳胶固体成分重量的50-100%,并粘接和嵌入粘合橡胶层中。还提供了一种生产这种动力传输皮带的方法。