Thermoplastic rubber compositions comprising
a) an at least partly neutralized carboxylated elastomeric polymer, wherein
1) the polymer is substantially free of olefinic unsaturation,
2) the carboxyl groups originate in the in the reaction of the non-carboxylated elastomeric polymer with at least 0.5 pbw of an azido-sulfonylbenzoic acid per 100 pbw of polymer
3) a metal-based neutralizing agent has been used for the neutralization of the carboxyl groups, and
4) the degree of neutralization of the carboxyl groups is at least 50%,
and
b) a zinc carboxylate, based on a linear or branched monocarboxylic acid having at least 12 carbon atoms per molecule, which zinc carboxylate is present in an amount of at least 6 pbw per 100 pbw of said carboxylated polymer.
热塑性橡胶组合物,包括
a) 至少部分中和的羧基弹性聚合物,其中
1) 该聚合物基本上不含烯烃不饱和度、
2) 羧基产生于非羧化弹性聚合物与每 100 pbw 聚合物中至少 0.5 pbw 的
叠氮磺酰基
苯甲酸的反应中
3) 使用
金属基中和剂中和羧基,以及
4) 羧基的中和度至少为 50%、
以及
b)
羧酸锌,基于每分子至少有 12 个碳原子的直链或支链单
羧酸,
羧酸锌的含量为每 100 pbw 羧化聚合物至少 6 pbw。