Transition metal composition

Details Transition metal composition Transition metal composition

1977-08-08

1979-01-23

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431R, 252431C, 252431N, 252431P, 526113, 526114, 526123, 526124, 526125, 526137, 526139, 526140, 526141, 526142, 526143, C08F 402, C08F 410, C08F 426

Patent

active

041360575

ABSTRACT:
A transition metal compound containing at least one .eta..sup.6 -arene is contacted with a solid material of the formula MX.sub.2 nL where X is a halogen atom, n is such that 0<n.ltoreq.6 and L is an organic Lewis Base compound. The transition metal compound can be a compound such as TiCl.sub.2.2AlCl.sub.3 -arene. The solid material is preferably of high surface area and this may be inherent in the solid material or can be achieved by a grinding procedure. The solid material may be MgCl.sub.2 2.0 C.sub.2 H.sub.5 OH; MgCl.sub.2 2.0 CH.sub.3 COOH or MgCl.sub.2 1.0 CH.sub.3 COOC.sub.2 H.sub.5. The solid material can be treated with a halogen-containing compound either before, during or after the contacting with the transition metal compound. The product of the contacting is useful either as catalyst for the polymerization of unsaturated hydrocarbon monomers or as a component of such a catalyst. When used as a component of an olefine polymerization catalyst, the transition metal product can be mixed with an organo-aluminium compound and and additional Lewis Base compound such as an ester. The catalyst can be used to polymerize or copolymerize olefine monomers to obtain a high yield of a polymer.

REFERENCES:
patent: 3492281 (1970-01-01), Smith et al.
patent: 3494873 (1970-02-01), Vohwinkel et al.
patent: 3558515 (1971-01-01), Kittleman et al.
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3738944 (1973-06-01), Candlin et al.

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