Patent ID: 6995218
Filing Date: 2006-02-07
Classification: C08F,Y10S

Abstract:
1. A method of polymerization comprising contacting monomers selected from the group consisting of styrene, derivatives of styrene, and ethylenically unsaturated compounds with a catalyst system wherein said catalyst system comprises a co-catalyst and a catalyst prepared by reacting a metallocene compound represented by the general formulae: with a compound having at least two functional groups represented by the general formulae (C) or (D): wherein M in the formulae (A) and (B) represents a transition metal of group IV, V or VI of the periodic Table of the Elements; R a, b, and c are integers from 0 to 4; and d and e are integers from 0 to 3; wherein T Y, Y′, and Y″ are selected from the group consisting of O, S, —Nr R wherein R′, R″, R″′, and R″″ are selected from the group consisting of a linear alkylene group, a branched alkylene group of C Q is N or —Cr wherein said step of contacting monomers comprises reacting the metallocene compound and the compound having at least two fictional groups in a polymerization reactor being filled with said monomers and adding said co-catalyst to the polymerization reactor.