Patent ID: 6908877
Filing Date: 2005-06-21
Classification: C08F,Y10S

Abstract:
1. A Method for preparing a supported metallocene catalyst comprising steps of: a) dehydrating silica at 500° C. or more, and treating the dehydrated silica with silane represented by following Chemical Formula 9 to selectively remove hydroxy groups existing on a silica surface to prepare a silane-treated silica as a carrier, b) reacting the silane-treated silica with a metallocene compound introduced a functional group in the presence of an organic solvent to support a metallocene compound on the carrier, and wherein the metallocene compound is one or more kinds of metallocene compound catalyst ingredients that at least one hydrogen radical existing on R to break a carbon-oxygen bond, a carbon-sulfur bond or a silicon-oxygen bond existing on a radical represented by the following Chemical Formula 3, 4 or 5 thereby forming a novel chemical bond between the metallocene compound and the carrier: wherein in the Chemical Formula 1 or 2, M is a Group 4 transition metal, (C B, which is a bridge connecting two cyclopentadienyl ligands or one cyclopentadienyl ligand and JR R J is a VA Group atom or a VIA Group atom; Q, which may be identical or different, is a halogen radical, C1-20 alkyl radical, alkenyl radical, aryl radical, alkylaryl radical, arylalkyl radical or C1 -20 alkylidene radical; L is a Lewis base; s is 0 or 1, and p is 0, 1 or 2, provided that s is 0 when p is 0, m is 4 when s is 1, and m is 5 when s is 0; z is an atomic valence of J, which is 3 for VA Group atoms and 2 for VIA Group atoms; and x is 0 or 1, provided that when x is 0, n is 5, y is 1, and w is more than 0, and when x is 1, n is 4, y is 2, and w is 0, wherein in the Chemical Formula 3, Z is an oxygen or sulfur atom; R, which may be identical or different, is a hydrogen radical, or a C1-40 alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical; R′, which may be identical or different, is a hydrogen radical, or a C1-40 alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical, and the two R′ may be connected with each other to form a ring; Y is a C1-40 alkoxy, aryloxy, alkylthio, arylthio, phenyl, or substituted phenyl, and it may be connected with a R′ to form a ring; provided that when Z is a sulfur atom, Y must be an alkoxy or aryloxy, and when Y is an alkylthio, arylthio, phenyl or substituted phenyl, Z must be an oxygen atom; and A is a carbon or silicon atom, wherein in the Chemical Formula 4, Z is an oxygen or sulfur atom, and at least one Z is an oxygen atom; R″ is a hydrogen radical, or a C1-40 alkyl, cycloalkyl, arylalkenyl, alkylaryl, arylalkyl, or arylalkenyl radical, and it may be connected with an R′″ to form a ring; R′″, which may be identical or different, is a hydrogen radical, or a C1-40 alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical, and the two R′″ may be connected with each other to form a ring; and A is a carbon or silicon atom, wherein in the Chemical Formula 5, R″″, which may be identical or different, is a hydrogen radical, or a C1-40 alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical; R′″″, which may be identical or different, is a hydrogen radical, or a C1-40 alkyl, cycloalkyl, aryl, alkenyl, alkylaryl, arylalkyl, or arylalkenyl radical, and two neighboring R′″″ may be connected with each other to form a ring; provided that when at least one R″″ is a hydrogen radical, all R′″″ are not hydrogen radicals, and when at least one R′″″ is a hydrogen radical, all R″″ are not hydrogen radicals; and A is carbon or silicon atom, wherein in the Chemical Formula 9, R