Katalysatorkomponent, katalysator och polymeriserings förfarande

摘要

Ziegler polymerization of alpha -olefins is disclosed which is characterized by a solid catalyst component used in the Ziegler-type catalyst. The solid catalyst component, Component (A), comprises Component (i) which is a solid catalyst component for a Ziegler-type catalyst comprising Ti, Mg and a halogen; Component (ii) a silicon compound of a formula: R<1>R<2>3-nSi(OR<3>)n wherein R<1> - R<3> are each hydrocarbyl group characterized by R<1> which has a branched hydrocarbyl group; Component (iii) a halogen compound of W or Mo; and Component (iv) an organometal compound of a metal of Groups I to IV of the Periodic Table.