SUPPORTED POLYMERIZATION CATALYST USING A CATALYST PRECUSOR HAVING FUNCTIONAL GROUP AND SURFACE MODIFIED CARRIER AND OLEFIN POLYMERIZATION USING THE SAME

摘要

The present invention provides a supported metallocene catalyst wherein a metallocene compound is supported on a silica carrier by reacting a metallocene compound substantially having acetal, ketal, secondary or tertiary alkoxy alkyl, benzyl oxy alkyl, substituted benzyloxy alkyl, aryloxy alkyl, dithioacetal, dithioketal, monothioacetal, monothioketal, thioether or alkoxysilane functional group on a part of its ligand with a silica carrier prepared by silane-treating a silica dehydrated at 500 °C or more to selectively remove hydroxy groups out of hydroxy groups and siloxane groups existing on a silica surface, and an olefin polymerization process using the same.