C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
402/374, 260/426
C07F 7/00 (2006.01) C07F 5/00 (2006.01) C07F 7/28 (2006.01) C07F 17/00 (2006.01) C08F 2/00 (2006.01) C08F 10/00 (2006.01) C08F 4/619 (2006.01) C08F 4/6192 (2006.01)
Patent
CA 2025332
A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as an addition polymerization catalyst corresponds to the formula: CpMX n+ A- wherein: Cp is a single ~5-cyclopentadienyl or ~5- substituted cyclopentadienyl group optionally covalently banded to M through a substituent; M is a metal of Group 3-10 or the Lanthanide Series of the Periodic Table bound in an ~5 bonding mode to the cyclopentadienyl or substituted cyclopentadienyl group; X each occurrence is hydride or a moiety selected from halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, and combinations thereof having up to 20 non-hydrogen atoms, neutral Lewis base ligands having up to 20 non-hydrogen atoms; or optionally one X together with Cp forms a metallocycle of up to 20 non- hydrogen atoms with M; n is 1 or 2 depending on the valence of M; and A- is a noncoordinating, compatible anion of a Bronsted acid salt.
Neithamer David R.
Stevens James C.
Smart & Biggar
The Dow Chemical Company
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