C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 10/00 (2006.01) C08F 10/14 (2006.01)
Patent
CA 2545604
This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. One aspect of this invention is the preparation and use of a catalyst composition comprising a hydrocarbyl-substituted metallocene compound and a chemically treated solid oxide for olefin polymerization processes. In another aspect, for example, this invention encompasses the preparation of a catalyst composition comprising (~5 cycloalkadienyl)2Zr(hydrocarbyl)2 complexes and sulfated alumina, but containing no organoaluminum or organoboron cocatalysts, and further the use of this catalyst composition for polymerizing olefins.
L'invention concerne des compositions catalytiques pour la polymérisation d'oléfines, et des procédés pour la polymérisation et la copolymérisation d'oléfines, y compris des procédés de polymérisation à composition catalytique supportée. Selon un aspect, l'invention concerne la préparation et l'utilisation de ce type de composition, renfermant un composé métallocène à substitution d'hydrocarbyle et un oxyde de solide à traitement chimique pour les processus de polymérisation d'oléfines. Selon un autre aspect, par exemple, on décrit la préparation d'une composition renfermant des complexes (.eta.5 cycloalkadiényl)¿2?Zr(hydrocarbyl)¿2? et de l'alumine sulfatée, mais sans cocatalyseurs à organo-aluminium ou organo-bore, et par ailleurs l'utilisation de ce type de composition pour la polymérisation d'oléfines.
Jayaratne Kumi C.
Thorn Matthew G.
Yang Qing
Chevron Phillips Chemical Company Lp
Finlayson & Singlehurst
LandOfFree
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