05470927 is referenced by 30 patents and cites 29 patents.

A method is disclosed 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 (1) a cation derived from a bis(cyclopentadienyl) Group IV-B metal compound by abstracting a ligand to create a positively charged species and (2) a stabilizing non-coordinating anion, said anion being sufficiently labile to permit displacement by the olefin, diolefin and/or acetylenically unsaturated monomer during polymerization. The process provides means of producing narrow molecular weight polyolefin polymers, increasing comonomer incorporation in copolymers and avoiding metal impurities in the polymer products.

Title
Ionic metallocene catalyst compositions
Application Number
11471
Publication Number
5470927
Application Date
October 5, 1994
Publication Date
November 28, 1995
Inventor
Richard R Eckman
Houston
TX, US
Gregory G Hlatky
Houston
TX, US
Howard W Turner
Houston
TX, US
Agent
W G Muller
Assignee
Exxon Chemical Patents
DE, US
IPC
B01T 31/00
C08F 4/72
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