US 2004/0002420 A1 · Stable catalysts and co-catalyst compositions formed from hydroxyaluminoxane and their use

Abstract

Surprisingly stable olefin polymerization catalysts and co-catalysts formed from hydroxyaluminoxanes are revealed. In one embodiment of the invention, a solid composition of matter is formed from a hydroxyaluminoxane and a treating agent, whereby the rate of OH-decay for the solid composition is reduced as compared to that of the hydroxyaluminoxane. Gelatinous compositions of matter formed from hydroxyaluminoxane and having similar stability characteristics are also disclosed. Processes for converting a hydroxyaluminoxane into a such compositions of matter, supported catalysts formed from such co-catalyst compositions of matter, as well as methods of their use, are described.

Claims25

Dependent claims

A process which comprises bringing together in an inert atmosphere and in an inert anhydrous solvent medium, the d-block or f-block metal compound and a hydroxyaluminoxane;

recovering a resulting product compound;
storing the recovered product compound in an anhydrous, inert atmosphere or environment;
and maintaining said product compound in undissolved form except during one or more optional finishing procedures, if any such finishing procedure is performed.

Dependencies are inferred from the claim text.

Facts

Application

10/379,847Filed 5 Mar 2003

Priority

23 Oct 1998

Published

1 Jan 2004

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

B01J 31/122
Containing organo-metallic compounds or metal hydrides: metal aryl or alkyl compounds
B01J 31/143
Of aluminium or boron: of aluminium
B01J 31/1616
Containing coordination complexes: coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g.…
B01J 31/2295
Unsaturated compounds used as ligands: cyclic compounds, e.g. cyclopentadienyls

Family

Application09/177,736Continuation in part · filed 23 Oct 1998

Application09/655,218Continuation in part · filed 5 Sep 2000

Application09/946,881Continuation in part · filed 5 Sep 2001

Application10/379,847Continuation in part · filed 5 Mar 2003

US 2002/0132945 A1Published application

US 6,160,145 ARelated patent

US 6,462,212 B1Related patent

US 6,812,182 B2Related patent

US 2004/0002420 A1This patent

From the US filing history. Foreign family members aren’t listed.

Stable catalysts and co-catalyst compositions formed from hydroxyaluminoxane and their use

Life of this patent

Stable catalysts and co-catalyst compositions formed from hydroxyaluminoxane and their use

Life of this patent

Abstract

Claims25