Patent ID: 6943225
Filing Date: 2005-09-13
Classification: C07F,C08F,Y10S

Abstract:
1. A multinuclear catalyst for olefin polymerization comprising: (A) a transition metal compound represented by the formula 1: wherein M 1 and M 2 are the same or different and each represents an element in the groups III to X of the periodic table; Cp 1 and Cp 2 are the same or different and each represents a ligand having an unsubstituted or substituted cyclopentadienyl structure, the substituted cyclopentadienyl structure having at least one substituent selected from the group consisting of a C 1 -C 20 alkyl group, a C 3 -C 20 cycloalkyl group, a C 1 -C 20 alkylsilyl group, a C 1 -C 20 haloalkyl group, a C 6 -C 20 aryl group, a C 7 -C 20 arylalkyl group, a C 6 -C 20 arylsilyl group, a C 7 -C 20 alkylaryl group, a C 1 -C 20 alkoxy group, a C 1 -C 20 alkylsiloxy group, a C 6 -C 20 aryloxy group, a halogen atom and an amino group; and B 1 represents a C 12 -C 40 arylene group or an arylene group represented by the formula 2:  Ary-(B 1′ )q-Ary  [Formula 2] wherein Ary represents a C 6 -C 20 arylene group directly bonded to Cp 1 and Cp 2 ; B 1′ represents a C 1 -C 20 alkylene group, a C 3 -C 20 cycloalkylene group, a C 1 -C 20 alkylsilylene group, a C 1 -C 20 haloalkylene group, a C 7 -C 20 arylalkylene group or a C 6 -C 20 arylsilylene group; and q is an integer from 0 to 5; X and Y are the same or different and each represents Cp (B) an aluminoxane compound represented by the formula 9, an organoaluminum compound represented by the formula 10, or bulky compound represented by the formula 11 that is reactive to the transition metal compound to impart a catalytic activity to the transition metal compound: wherein R 1 represents a C 1 -C 10 alkyl group; and n is an integer from 2 to 70; wherein R 2 , R 3 and R 4 are the same or different and each represents a C 1 -C 10 alkyl group, a C 1 -C 10 alkoxy group or a halide group, at least one of R 2 , R 3 and R 4 is an alkyl group; and wherein C represents a proton-bonded cation of a Lewis base, or an oxidative metallic or non-metallic compound; and D is a compound of an element in the groups V to XV of the Periodic Table of the Elements and an organic substance.