Claims
- 1. 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.
- 2. A process of claim 1 wherein said hydroxyaluminoxane before being brought together with said d- or f-block metal compound has a ratio of less than one hydroxyl group per aluminum atom.
- 3. A process of claim 1 wherein the hydroxyaluminoxane before being brought together with said d- or f-block metal compound is an alkylaluminoxane in which at least one aluminum atom has a hydroxyl group bonded thereto, and in which the alkyl groups each contain at least two carbon atoms.
- 4. A process of claim 3 wherein the alkyl groups are isobutyl groups.
- 5. A process of claim 1 wherein the metal-containing product compound while being maintained in said undissolved form is in isolated form, or is in supported form on a catalyst support material.
- 6. A process which comprises bringing together (i) a hydroxyaluminoxane and (ii) a carrier material or a support material.
- 7. A process of claim 6 wherein (ii) is a particulate inorganic catalyst support material.
- 8. A process of claim 6 wherein (ii) is comprised of anhydrous or substantially anhydrous particles of silica, silica-alumina, or alumina.
- 9. A process of claim 6 wherein (ii) is a particulate porous calcined silica or a particulate porous silica pretreated with an aluminum alkyl.
- 10. An olefin polymerization process which comprises bringing together in a polymerization reactor or reaction zone at least (1) one or more polymerizable olefins and (2) an activated catalyst composition formed by bringing together at least (A) a gelatinous composition formed by bringing together at least (i) a hydroxyaluminoxane in an inert solvent and (ii) a treating agent that is able to form a gelatinous composition, or a solid composition formed by removing at least some of said inert solvent from said gelatinous composition, or both of said gelatinous composition and said solid composition, and (B) a d- or f-block metal compound having at least one leaving group on a metal atom thereof, to form a polymer.
- 11. A process of claim 10 wherein the treating agent of (ii) is comprised of water.
- 12. A process of claim 11 wherein the gelatinous composition is substantially insoluble in hexane.
- 13. A process of claim 11 wherein the hydroxyaluminoxane before inclusion in said inert solvent has less than 25 OH groups per 100 aluminum atoms.
- 14. A process of claim 13 wherein said hydroxyaluminoxane has no more than 15 OH groups per 100 aluminum atoms.
- 15. A process of claim 11 wherein the hydroxyaluminoxane before inclusion in said inert solvent is hydroxyisobutylaluminoxane.
- 16. A process of any of claims 10 through 15 characterized by having when freshly prepared a lower OH-decay rate than the OH-decay rate of said hydroxyaluminoxane by a factor of at least 5.
- 17. A process of claim 10 wherein the d- or f-block metal of said d- or f-block metal compound is a Group 4 metal.
- 18. A process of claim 10 wherein said d- or f-block metal compound is a metallocene.
- 19. A process of claim 18 wherein the d- or f-block metal of said metallocene is at least one Group 4 metal.
- 20. A process of claim 18 wherein said metallocene contains two bridged or unbridged cyclopentadienyl-moiety-containing groups.
- 21. A process of claim 20 wherein the Group 4 metal of said metallocene is zirconium or hafnium.
- 22. A process of any of claims 10, 11, 13, 15, or 17-21 wherein said activated catalyst composition in a dry or substantially dry state is able to be maintained at a temperature in the range of 10 to 60° C. for a period of at least 48 hours without losing fifty percent (50%) or more of its catalytic activity.
- 23. A process of any of claims 10, 11, 17, 18, 19, or 20 wherein the polymerization process is conducted as a gas-phase polymerization process.
- 24. A process of any of claims 10, 11, 17, 18, 19, or 20 wherein the polymerization process is conducted in a liquid phase diluent.
- 25. A process of any of claims 10, 11, 17, 18, 19, or 20 wherein the polymerization process is conducted as a fluidized bed process.
REFERENCE TO RELATED APPLICATIONS
[0001] The present application is based on and claims priority of International Application No. PCT/US01/27449, filed Sep. 5, 2002, published in English on Mar. 14, 2002, which in turn is based in part on and claims priority of U.S. application. Ser. No. 09/655,218, now U.S. Pat. No. 6,462,212. U.S. application Ser. No. 09/655,218 in turn is a continuation in part of U.S. application. Ser. No. 09/177,736, now U.S. Pat. No. 6,160,145. The present application is also a continuation in part of copending U.S. application Ser. No. 09/946,881, filed Sep. 5, 2001, which is a continuation in part of Ser. No. 09/655,218, which in turn is a continuation in part of Ser. No. 09/177,736.
Continuation in Parts (3)
|
Number |
Date |
Country |
Parent |
09946881 |
Sep 2001 |
US |
Child |
10379847 |
Mar 2003 |
US |
Parent |
09655218 |
Sep 2000 |
US |
Child |
09946881 |
Sep 2001 |
US |
Parent |
09177736 |
Oct 1998 |
US |
Child |
09655218 |
Sep 2000 |
US |