MIXED METAL ALKOXIDE COMPLEXES AND POLYMERIZATION CATALYSTS MADE THEREFROM

WIPO Patent Application WO2001000685

A3

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.

JOB ROBERT CHARLES

PCT/US2000/018009

June 20, 2002

June 29, 2000

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UNION CARBIDE CHEM PLASTIC (US)

B01J21/10; B01J31/02; B01J31/12; B01J31/14; B01J37/03; C07C29/68; C07C31/28; C07F7/00; C07F9/00; C07F13/00; C07F15/02; C07F15/06; C08F4/00; C08F4/02; C08F4/60; C08F4/602; C08F4/62; C08F10/00; B01J21/06; B01J23/14; B01J23/20; B01J23/32; B01J23/74; (IPC1-7): C07F7/00; C07F15/02; C07F7/22; C07F7/28; C07F9/00; C08F10/00; C08F4/00; B01J21/10; B01J21/06; B01J31/12; C08F4/62

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US4892914A	1990-01-09
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US4399056A	1983-08-16
US5077357A	1991-12-31
US5122494A	1992-06-16
US5106806A	1992-04-21

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