Polymerisation and oligomerisation catalysts

Details Polymerisation and oligomerisation catalysts Polymerisation and oligomerisation catalysts

2005-07-25

2011-11-29

Lu, Caixia (Department: 1765)

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

Catalyst or precursor therefor

Organic compound containing

C502S103000, C502S115000, C526S124200, C526S124900, C526S161000

Reexamination Certificate

active

08067328

ABSTRACT:
A polymerization catalyst composition comprising (1) a transition metal compound of Formula (A), Z being 5-membered heterocyclic containing at least one carbon, at least one nitrogen and at least one of nitrogen, sulphur and oxygen, the others being nitrogen or carbon; M is a Group 3 to 11 metal or a lanthamide metal; E1and E2are divalent groups of aliphatic, alicyclic, aromatic or alkyl substituted aromatic hydrocarbon, or heterocyclic; 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 integer such that X and L satisfy valency/oxidation state of M, (2) a catalyst-activating support which is a solid particulate substance, insoluble in hydrocarbons, comprising at least magnesium and aluminum atoms and hydrocarbyloxy groups containing 1 to 20 carbon atoms, the molar ration of Mg/Al being in the range 1.0 to 300 and the molar ratio of hydrocarbyloxy groups to aluminum atoms being in the range 0.5 to 2.0, and optionally, (3) an additional activator selected from aluminum alkyl and boron compounds.

REFERENCES:
patent: 7253132 (2007-08-01), Nakayama et al.
patent: WO 2004/037870 (2004-05-01), None
Tomov et al., “Bis(benzimidazole)amine vanadium catalyst for olefin polymerization and copolymerization: thermally robust, single-site catalysts activated by sinple alkylaluminium reagents”, Chem. Commum., 2004, 1954-1957.

Affiliated with

Also associated with

Rating

Polymerisation and oligomerisation catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polymerisation and oligomerisation catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymerisation and oligomerisation catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4290637