Transition metal polymerization catalysts, their synthesis...

Details Transition metal polymerization catalysts, their synthesis... Transition metal polymerization catalysts, their synthesis...

2008-02-04

2009-10-20

Lu, Caixia (Department: 1796)

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

Catalyst or precursor therefor

Organic compound containing

C502S152000, C502S167000, C526S161000, C526S172000

Reexamination Certificate

active

07605105

ABSTRACT:
A transition metal ligand complex has the following formula:wherein R1and R2(each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R3and R4(each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R5represents an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms, provided that R4and R5may be joined to form a cyclic structure; R6represents an alkyl or aryl group having up to 20 carbon atoms; and Mt represents a transition metal selected from Group 7, 8, 9, 10, 11, or 12 of the Periodic Table of the Elements.

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