High activity alpha-olefin polymerization catalysts comprising an organometallic promoter and a component prepared from at least one compound of a Group IVB, VB, or VIB metal, at least one support material which is a divalent metal salt of a phosphorus acid ester having at least one phosphorus acid ester group bonded to metal through oxygen or sulfur, and at least one alkylaluminium halide.
高活性α-烯烃聚合催化剂,包括有机
金属
促进剂和由至少一种 IVB、VB 或 VIB 族
金属化合物制备的组分,至少一种支撑材料,该支撑材料是
磷酸酯的二价
金属盐,其中至少有一个
磷酸酯基团通过氧或
硫与
金属键合,以及至少一种烷基卤化铝。