Borabenzene based olefin polymerization catalysts containing a g

Details Borabenzene based olefin polymerization catalysts containing a g Borabenzene based olefin polymerization catalysts containing a g

1997-06-10

2000-03-07

Wu, David W.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Nitrogen compound containing

502117, 502152, 502155, 502202, 502206, 502207, 502211, 502213, B01J 2724

Patent

active

060340274

ABSTRACT:
Disclosed is a catalyst having the general formula ##STR1## where Q is a ligand containing the ring ##STR2## R is hydrogen, N(R').sub.2, OR', or R', each R' is independently selected from alkyl from C.sub.1 to C.sub.10, aryl from C.sub.6 to C.sub.15, alkaryl C.sub.7 to C.sub.15, and aralkyl from C.sub.7 to C.sub.15, each X is independently selected from hydrogen, halogen, alkoxy from C.sub.1 to C.sub.10, dialkylamino from C.sub.1 to C.sub.10, methyl, ##STR3## each R.sub.1 is independently selected from halogen, alkoxy from C.sub.1 to C.sub.10, and R', L is ##STR4## Q, or X, where one .pi.-ligand can be bridged to second .pi.-ligand, B is an optional base, "n" is 0 to 5, and M is a Group 3-10 metal.

REFERENCES:
patent: 5468889 (1995-11-01), Srebnik et al.

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