Transparent and colorable elastomeric compositions are provided. The transparent elastomeric compositions can be covulcanized with rubbers such as polybutadiene, polyisoprene, styrene-butadiene rubber, styrene-isoprene-butadiene rubber, isoprene-butadiene rubber, or natural rubber and polybutene processing oil. The colorable rubber compositions have sufficient properties to function as a reinforcing member in a shoe sole or automobile tire. Preferably, both the transparent and colorable elastomeric compositions include at least one copolymer of a C
4
to C
7
isoolefin and a p-methylstyrene, silica and a high cis-polybutadiene rubber.
提供了透明和可着色的弹性体组合物。透明弹性体组合物可与聚
丁二烯、聚
异戊二烯、
丁苯橡胶、
苯乙烯-
异戊二烯-
丁二烯橡胶、
异戊二烯-
丁二烯橡胶或
天然橡胶和聚
丁烯加工油等橡胶共
硫化。可着色橡胶组合物具有足够的特性,可用作鞋底或汽车轮胎的补强部件。透明和可着色弹性体组合物最好都包括至少一种 C
4
至 C
7
异烯烃和对
甲基苯乙烯的共聚物、
白炭黑和高顺式聚
丁二烯橡胶。