Transition metal complexes, ligands, polymerization...

Details Transition metal complexes, ligands, polymerization... Transition metal complexes, ligands, polymerization...

2006-11-28

2006-11-28

Lu, Caixia (Department: 1713)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S011000, C556S012000, C502S103000, C502S128000, C502S152000, C502S158000, C526S127000, C526S133000, C526S160000, C526S165000, C526S172000, C526S943000

Reexamination Certificate

active

07141690

ABSTRACT:
A transition metal complex represented by the formula (1):wherein M is a Group 4 transition metal, A is a Group 16 element, B is a Group 14 element, n is an integer of 0 or 1, R1, R2, R3and R4may be the same or different and each independently denotes a substituent selected from the group consisting of the groups (I) and (II):group (I): hydrogen, alkyl and so on,group (II): alkoxy, alkylthio and so on,provided that at least one of R1, R2, R3and R4is a substituent selected from group (II);R5, R6, R7, R8, R9, R10, X1and X2may be the same or different and are each hydrogen, halogen, alkyd or the like; and a catalyst for olefin polymerization comprising said complex, an organoaluminum compound and a boron compound are provided.

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