| abstract |
PROBLEM TO BE SOLVED: To provide a novel catalyst for polymerization of an olefin, a diolefin, and / or an acetylenically unsaturated monomer. The present invention relates to an ionic catalyst comprising a cation moiety derived from a bis (cyclopentadienyl) group IV-B metal compound and a covalent bond to a central formal charged metal atom. An ionic catalyst comprising an anionic moiety having a plurality of lipophilic groups for coordinating and protecting. |