Aluminium compound, method for producing the same, catalyst...

C - Chemistry – Metallurgy – 07 – F

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C07F 5/06 (2006.01) C08F 4/642 (2006.01) C08F 10/00 (2006.01) C08F 10/06 (2006.01) C08F 12/04 (2006.01) C08G 79/10 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2285576

A catalyst for olefinic polymer production comprises (a) a penta-coordinated, organic aluminium oxide compound, (b) an alkylating agent and (c) a compound of a transition metal of Group IV, V, VI or VIII of the Periodic Table. Olefins are homopolymerized or copolymerized in the presence of the catalyst for olefinic polymer production to produce olefinic polymers. The process does not require a promoter of methylaluminoxane, with which the problem is low solubility and low storage stability. Using therein the penta-coordinated, organic aluminium oxide compound which is relatively inexpensive and can be produced easily, the process realizes high-yield production of olefinic polymers.

La présente invention concerne un catalyseur servant à la production de polyoléfine qui comprend (a) un composé organique d'oxyde d'aluminium pentacoordiné, (b) un agent d'alkylation, et (c) un composé d'un métal de transition des Groupes IV, V, VI, ou VIII de la Classification Périodique des Eléments. En présence du catalyseur, une oléfine est homopolymérisée, ou copolymérisée en présence d'une ou plusieurs autres oléfines, pour former un polymère d'oléfine. L'utilisation d'un composé organique d'oxyde d'aluminium pentacoordiné, relativement bon marché et facilement synthétisé, permet ainsi de produire un polymère d'oléfine avec un rendement élevé, sans utiliser de méthylaluminoxane comme promoteur, qui est faiblement soluble et difficile à conserver.

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