Patent ID: 6121395
Filing Date: 2000-09-19
Classification: C07F,C08F,Y10S

Abstract:
A method for polymerizing olefins, diolefins, or acetylenically unsaturated monomers containing two or more carbon atoms, either alone or in combination with each other or with other polymerizable monomers, comprising contacting the monomers with an ionic polymerization catalyst comprising (I) a group 4 metallocene cation and (2) a stabilizing noncoordinating anion, said anion represented by the general formula:[(M')Q.sub.q Q.sub.2. . . Q.sub.n ].sup.-wherein:M' is an element selected from the atoms of group 13; andQ.sub.1 to Q.sub.n are independently selected from the group consisting of alkoxide and aryloxide radicals, hydrocarbyl radicals and substituted-hydrocarbyl radicals, halocarbyl and substituted halocarbyl radicals, and hydrocarbyl- and halocarbyl-substituted organometalloid radicals, and hydrocarble- and halocarbyl-substituted organometalloid radicals, which radicals may be linked to each other through a stable bridging group, said Q.sub.1 to Q.sub.n radicals including at least one fluorinated naphthyl or anthracenyl radical.