A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.
一种可
硫化组合物,由橡胶成分、填料和
硫化剂组成,其中橡胶成分包括聚
丁二烯和聚
异戊二烯的嵌段共聚物,嵌段共聚物的顺式含量至少为 90%。