Polymerisation catalyst

Details Polymerisation catalyst Polymerisation catalyst

2005-06-23

2010-11-30

Lu, Caixia (Department: 1796)

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

Catalyst or precursor therefor

Organic compound containing

C502S103000, C502S104000, C502S108000, C526S075000, C526S161000, C526S165000

Reexamination Certificate

active

07842638

ABSTRACT:
A polymerisation catalyst comprising (1) a transition metal compound of Formula (A), and optionally (2) an activator, wherein Z is 5-membered heterocyclic containing carbon, nitrogen and at least one other selected from nitrogen, sulphur and oxygen, the remaining atoms in the ring being nitrogen and carbon; M is a metal from Group 3 to 11 or a lanthanide metal; E1and E2are divalent hydrocarbon, heterocyclic or heterosubstituted derivatives of these; D1and D2are donor atoms or groups; X is an anionic group, L is a neutral donor group; n=m=zero or 1; y and z are zero or integers so that X and L satisfy the valency/oxidation state of M, characterized in that the complex contains at least one polymerisable olefinic double bond which is present in, or substituent to, at least one of the atoms, groups or ligands represented by Z, E, D and L. The catalyst binds to the forming polymer providing product with good particle morphology.

REFERENCES:
patent: 6281303 (2001-08-01), Lavoie et al.
patent: 0 942 010 (1999-09-01), None
patent: WO 01/74831 (2001-10-01), None
patent: WO 01/98381 (2001-12-01), None
patent: WO 01/98381 (2001-12-01), None
patent: WO 2004/083263 (2004-09-01), None
patent: WO2005/005494 (2005-01-01), None

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