A process for the production of ethylenic polymers is disclosed in which an ethylenic monomer is polymerized in the presence of a catalyst comprising a chromium compound, an alumoxane and an organometallic alkoxide and/or organometallic siloxide and a carrier supporting thereon these compounds. The resultant polymer has a balanced proportion of rigidity and environmental stress cracking resistance (ESCR) and an excellent moldability property.
本发明揭示了一种生产
乙烯基聚合物的方法,其中在
铬化合物、氧化铝烷和有机
金属醇和/或有机
金属
硅醇催化剂以及携带这些化合物的载体的存在下,聚合
乙烯基单体。所得聚合物具有平衡的刚度和环境应力开裂抗性(ESCR)以及优异的可塑性能。