Patent ID: 7041618
Filing Date: 2006-05-09
Classification: C07F,C08F

Abstract:
1. A supported metallocene catalyst of the following formula obtained by using a dehydroxylated silica support including a hydroxyl group amount of less than 0.5 mmol/g silica: wherein M comprises a transition metal of Group 4; Cp, which are the same or different, comprise a cyclopentadienyl ring, wherein the cyclopentadienyl ring is unsubstituted or substituted by a moiety selected from the group consisting of alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, and arylalkenyl; Q, which are the same or different, comprise halogen or a moiety comprising from 1 to 20 carbon atoms, wherein the moiety is selected from the group consisting of alkyl, alkenyl, aryl, alkylaryl, arylalkyl, and alkylidene; A′, which are the same or different, are selected from the group consisting of methoxymethyl, t-butoxymethyl, tetrahydropyranyl, tetrahydrofuranyl, 1-ethoxyethyl, 1-methyl-1-methoxyethyl, and t-butyl; and a comprises an integer of from 4 to 8.