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Patent Searching and Data


Title:
MIXED METAL ALKOXIDE COMPLEXES AND POLYMERIZATION CATALYSTS MADE THEREFROM
Document Type and Number:
WIPO Patent Application WO2001000685
Kind Code:
A3
Abstract:
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.

Inventors:
JOB ROBERT CHARLES
Application Number:
US0018009W
Publication Date:
June 20, 2002
Filing Date:
June 29, 2000
Export Citation:
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Assignee:
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION
International Classes:
C07C31/28; B01J21/10; B01J31/02; B01J31/12; B01J31/14; B01J37/03; C07C29/68; 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
Foreign References:
EP0474249A11992-03-11
EP0043473A11982-01-13
GB2087907A1982-06-03
US4892914A1990-01-09
US5320994A1994-06-14
US3042626A1962-07-03
US4399056A1983-08-16
US5077357A1991-12-31
US5122494A1992-06-16
US5106806A1992-04-21
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