Mixed metal alkoxide complexes and polymerization catalysts...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 4/00 (2006.01) B01J 21/10 (2006.01) B01J 31/12 (2006.01) B01J 37/03 (2006.01) C07F 7/00 (2006.01) C07F 9/00 (2006.01) C07F 13/00 (2006.01) C07F 15/02 (2006.01) C07F 15/06 (2006.01) C08F 10/00 (2006.01) B01J 21/06 (2006.01) B01J 23/14 (2006.01) B01J 23/20 (2006.01) B01J 23/32 (2006.01) B01J 23/74 (2006.01)

Patent

CA 2369174

A mixed metal-containing precursor is disclosed whereby the precursor includes: a) a mixed metal component represented by the following formula: (M1M2)x(T1T2)y where M1 and M2 may be the same or different and are selected from one or more metals having a +2 oxidation state, T1 and T2 may be the same or different and are selected from one or more metals having oxidation states selected from the groups consisting of +3, +4, and +5, the molar ratio of x/y is from about 2.5 to about 3.75, with the proviso that if M1 and M2 are both Mg then T1 and T2 cannot both be chosen from Zr and Ti+4; and b) at least one moiety complexed with component a) selected from alkoxide groups, phenoxide groups, halides, hydroxy groups, carboxyl groups, amide groups, and mixtures thereof. A polymerization procatalyst prepared from the mixed metal containing precursor, methods of making the precursor and procatalyst, as well as polymerization methods using the procatalyst also are disclosed.

L'invention porte sur un précurseur métallique comportant: a) un composant métallique mixte de formule (M1M2)¿x?(T1T2)¿y? dans laquelle: M1 et M2, qui peuvent être identiques ou différents, sont choisis parmi un ou plusieurs métaux à l'état d'oxydation +2; T1 et T2, qui peuvent être identiques ou différents, sont choisis parmi un ou plusieurs métaux à l'état d'oxydation +3, +4, et +5; le rapport molaire de x/y est compris entre environ 2,5 et environ 3,75, sous réserve que si M1 et M2 sont tous deux Mg, T1 et T2 ne puissent être choisis tous deux parmi Zr et Ti?+4¿; et b) au moins un fragment complexé avec le composant a) choisi parmi des groupes alcoxyde, phénoxyde, hydroxy, carboxyle, amide, des halogénures, et leur mélange. L'invention porte également sur un procatalyseur de polymérisation préparé à l'aide du susdit précurseur, sur le procédé d'obtention dudit précurseur et dudit procatalyseur et sur des procédés de polymérisation utilisant ledit procatalyseur.

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