Organoaluminoxy product, catalyst systems, preparation, and use

Details Organoaluminoxy product, catalyst systems, preparation, and use Organoaluminoxy product, catalyst systems, preparation, and use

C - Chemistry, Metallurgy

07

F

C07F 5/06 (2006.01) C07F 17/00 (2006.01) C08F 4/622 (2006.01) C08F 10/00 (2006.01) C08F 4/619 (2006.01) C08F 4/6192 (2006.01)

Patent

CA 2164753

In accordance with the present invention, there is provided an organoaluminoxy product prepared by the process comprising reacting an organoaluminoxane with an ene-ol compound. In another embodiment, the organoaluminoxane can be prepared in situ by the process comprising reacting a hydrocarbylaluminum compound, water, and the ene-ol compound. Further there is provided olefin polymerization catalyst systems comprising the organoaluminoxy product and at least one transition metal-containing catalyst. Optionally, the catalyst system is prepolymerized in the presence of at least one olefin to form a prepolymerized catalyst system. Still further there is provided processes for the polymerization of olefins using the catalyst systems.

Selon la présente invention, on divulgue un produit aluminoxyorganique préparé par un procédé comprenant la réaction d'un organoaluminoxane avec un composé énolique. D'une autre manière, l'organoaluminoxane peut être préparé in situ par un procédé comprenant la réaction d'un hydrocarbylaluminium, d'eau et du composé énolique. On divulgue aussi des systèmes catalyseurs de polymérisation d'oléfines comprenant le produit aluminoxyorganique et au moins un catalyseur contenant un métal de transition. Le système catalyseur est facultativement prépolymérisé en présence d'au moins une oléfine afin de former un système catalyseur prépolymérisé. De plus, on divulgue des procédés pour polymériser des oléfines à l'aide de ces systèmes catalyseurs.

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