Preparation of homopolymers and copolymers of alpha -monoolefins by means of a Ziegler-Natta catalyst system

摘要

Alpha-olefins are polymerized with a catalyst containing (1) TiCl3/AlCl3 and (2) aluminum dialkyl chloride wherein (1) is prepared by milling the TiCl3/AlCl3 with a particular phosphorous compound under special conditions and then treating with a liquid hydrocarbon and an ether and/or ester.