申请人:JSR Corporation
公开号:EP0863165A1
公开(公告)日:1998-09-09
Novel conjugated diene polymers having good wear resistance, mechanical properties, storage stability, processability and a reduced cold flow are produced by polymerizing a conjugated diene compound with a catalyst of rare earth element compound and reacting the resulting polymer just after the polymerization with at least one compound selected from the group consisting of a halogenated organometallic compound, a halogenated metal compound, an organometallic compound, a heterocumulene compound, a hetero three-membered-ring containing compound, a halogenated isocyano compound, a carboxylic acid, an acid halide, an ester compound, a carbonic ester compound, an acid anhydride and a metal salt of a carboxylic acid as a modifying agent.
新型共轭二烯聚合物具有良好的耐磨性、机械性能、贮存稳定性、可加工性和较低的冷流性,其制备方法是用稀土元素化合物催化剂聚合共轭二烯化合物,并在聚合后使所得聚合物与至少一种选自以下组别的化合物反应:卤代有机金属化合物、有机金属化合物、杂茂烯化合物、含三元环的杂环化合物、卤代异氰酸酯化合物、羧基化合物、卤代异氰酸酯化合物、卤代异氰酸酯化合物、卤代异氰酸酯化合物、卤代异氰酸酯化合物、卤代异氰酸酯化合物、卤代金属化合物、有机金属化合物、杂茂烯化合物、含三元环的杂环化合物、卤代异氰 化合物、羧酸、酸卤化物、酯类化合物、碳酸酯类化合物、酸酐和羧酸的金属盐作为改性 剂。