Catalyst compositions comprising organometallic compounds

Details Catalyst compositions comprising organometallic compounds Catalyst compositions comprising organometallic compounds

C - Chemistry, Metallurgy

07

C

C07C 2/26 (2006.01) C07C 11/02 (2006.01) C07F 17/00 (2006.01) C08F 4/52 (2006.01) C08F 4/62 (2006.01) C08F 10/00 (2006.01) C08F 4/619 (2006.01) C08F 110/02 (2006.01) C08F 110/06 (2006.01)

Patent

CA 2224781

There is provided a catalyst composition comprising a first component which is an organometallic compound comprising a metal M of Group 3 to 6 of the Periodic Table or the Lanthanide series and at least one (hetero)cyclohexadienyl ligand of the general formula (I): C5ARn wherein A is an element chosen from Group 13 to 16 of the Periodic Table, R which can be connected to C or to A and which may form a bridge is independently hydrogen or an organic substituent which may contain one or more heteroatoms and n is 3 plus the number of valencies of A, and a second component which acts as a co- catalyst. There is further provided the use of this catalyst composition in a process for the (co)oligomerisation or (co)polymerisation of olefinically unsaturated hydrocarbons.

Cette invention concerne une composition catalytique comprenant un premier composant, lequel est un composé organométallique qui contient un métal M des groupes 3 à 6 de la Table de classification périodique ou de la série des Lanthanides, et au moins un ligand de (hétéro)cyclohexadiényle correspondant à la formule générale (I): C¿5?AR¿n? dans laquelle A est un élément choisi dans les groupes 13 à 16 de la Table de classification périodique; R, qui peut être relié à C ou A et former un pont, représente indépendamment hydrogène ou un substituant organique pouvant contenir un ou plusieurs hétéroatomes; et n est égal à 3 plus le nombre de valences de A. Cette composition comprend également un second composant qui agit comme un co-catalyseur. Cette invention concerne également l'utilisation de cette composition catalytique lors d'un processus de (co)oligomérisation ou de (co)polymérisation d'hydrocarbures insaturés en oléfines.

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