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专利名称：Polymerization catalyst systems, their
preparation, and use
发明人：M. Bruce Welch,Alexander Koppl,Helmut G.
Alt
申请号：US09/150462申请日：19980909公开号：US06159888A公开日：20001212
摘要：A prepolymerized solid catalyst is prepared by reacting a suitable support basewith an organoaluminum compound and then reacting that product with an activitypromoting amount of water and then reacting the resulting solid cocatalyst with ametallocene and then subjecting that product to prepolymerization in the presence ofhydrogen. The prepolymerized solid catalyst is useful in the polymerization of olefins.
申请人：PHILLIPS PETROLEUM COMPANY
代理人：Edward L. Bowman
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