Maria A Apecetche

US Patent:

6384156, May 7, 2002

Filed:

Apr 5, 2000

Appl. No.:

09/543045

Inventors:

Robert Joseph Noel Bernier - Flemington NJ
Robert Lorenz Boysen - Blairstown NJ
Robert Cecil Brown - Danbury CT
Mark Gregory Goode - Hurricane WV
John Henry Moorhouse - Kendall Park NJ
Robert Darrell Olson - Charleston WV
Leonard Sebastian Scarola - Basking Ridge NJ
Thomas Edward Spriggs - Cross Lanes WV
Gary Harry Williams - Flemington NJ
Kevin Joseph Cann - Rocky Hill NJ
Maria Angelica Apecetche - Piscataway NJ
Natarajan Muruganandam - Somerville NJ
Gregory George Smith - Belle Mead NJ

Assignee:

Union Carbide Chemicals Plastics Technology Corporation - Danbury CT

International Classification:

C08F 234

US Classification:

526 88, 526 64, 526136, 526137, 526142, 526335, 5263404, 526901

Abstract:

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

US Patent:

6441107, Aug 27, 2002

Filed:

Dec 18, 1998

Appl. No.:

09/215981

Inventors:

Natarajan Muruganandam - Belle Meade NJ
Kevin Joseph Cann - Rocky Hill NJ
Maria Angelica Apecetche - Piscataway NJ
John Henry Moorhouse - Kendall Park NJ

Assignee:

Union Carbide Chemicals Plastics Technology Corporation - Danbury CT

International Classification:

C08F 234

US Classification:

526 60, 526153, 526164, 526 3404, 526901, 524856

Abstract:

A process for controlling the molecular weight (Mw) and molecular weight distribution (MWD) of polybutadiene polymerized in an otherwise gas phase process using a rare earth catalyst is provided.

US Patent:

6627713, Sep 30, 2003

Filed:

May 7, 2002

Appl. No.:

10/141419

Inventors:

Robert Joseph Noel Bernier - Flemington NJ
Robert Lorenz Boysen - Blairstown NJ
Robert Cecil Brown - Danbury CT
Mark Gregory Goode - Hurricane WV
John Henry Moorhouse - Kendall Park NJ
Robert Darrell Olson - Charleston WV
Leonard Sebastian Scarola - Basking Ridge NJ
Thomas Edward Spriggs - Cross Lanes WV
Gary Harry Williams - Flemington NJ
Kevin Joseph Cann - Rocky Hill NJ
Maria Angelica Apecetche - Piscataway NJ
Natarajan Muruganandam - Somerville NJ
Gregory George Smith - Belle Mead NJ

Assignee:

Union Carbide Chemicals Plastics Technology Corporation - Danbury CT

International Classification:

C08F 234

US Classification:

526137, 526142, 5261691, 526335, 5263404, 526901

Abstract:

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

US Patent:

6989344, Jan 24, 2006

Filed:

Nov 18, 2003

Appl. No.:

10/716291

Inventors:

Kevin J. Cann - Rocky Hill NJ, US
Minghui Zhang - Hillsborough NJ, US
Jose Fernando Cevallos-Candau - Charleston WV, US
John Moorhouse - Kendall Park NJ, US
Mark Gregory Goode - Hurricane WV, US
Maria Apecetche - Piscataway NJ, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

B01J 31/00

US Classification:

502150, 502154, 526104, 526901

Abstract:

The present invention is directed to the use of aluminum alkyl activators and co-catalysts to improve the performance of chromium-based catalysts. The aluminum alkyls allow for the variable control of polymer molecular weight, control of side branching while possessing desirable productivities, and may be applied to the catalyst directly or separately to the reactor. Adding the alkyl aluminum compound directly to the reactor (in-situ) eliminates induction times.

US Patent:

7259125, Aug 21, 2007

Filed:

May 26, 2006

Appl. No.:

11/441505

Inventors:

Maria A. Apecetche - Bridgewater NJ, US
Phuong A. Cao - Old Bridge NJ, US
Michael D. Awe - Langhorne PA, US
Ryan W. Impelman - Houston TX, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

B01J 21/08

US Classification:

502232, 502103, 502133, 502132, 502 87, 502125, 5261231, 5261232, 5261233, 526129, 526348

Abstract:

Improved catalyst compositions, and polymerization processes using such improved catalyst compositions, are provided. An example of an improved catalyst composition is a supported catalyst system that includes at least one titanium compound, at least one magnesium compound, at least one electron donor compound, at least one activator compound, and at least one silica support material, the at least one silica support material having a median particle size in the range of from 20 to 50 microns with no more than 10% of the particles having a size less than 10 microns and no more than 10% of the particles having a size greater than 50 microns and average pore diameter of at least

US Patent:

7326760, Feb 5, 2008

Filed:

Jan 31, 2006

Appl. No.:

11/343538

Inventors:

Kevin J. Cann - Rocky Hill NJ, US
Minghui Zhang - Hillsborough NJ, US
John H. Moorhouse - Kendall Park NJ, US
Maria A. Apecetche - Bridgewater NJ, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 4/24
C08F 110/02

US Classification:

526352, 526106, 526113, 5261245, 502103, 502113, 502114, 502116

Abstract:

Broad molecular weight polyethylene and polyethylene having a bimodal molecular weight profile can be produced with chromium oxide based catalyst systems employing alkyl silanols. The systems may also contain various organoaluminum compounds. Catalyst activity and molecular weight of the resulting polyethylene may also be tuned using the present invention.

US Patent:

7381780, Jun 3, 2008

Filed:

Jul 10, 2007

Appl. No.:

11/825867

Inventors:

Maria A. Apecetche - Bridgewater NJ, US
Phuong A. Cao - Old Bridge NJ, US
Michael D. Awe - Langhorne PA, US
Ryan W. Impelman - Houston TX, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 4/42

US Classification:

526129, 502103, 502133, 502132, 502 87, 502125, 502232, 5261231, 5261232, 5261233, 526348

Abstract:

Improved catalyst compositions, and polymerization processes using such improved catalyst compositions, are provided. An example of an improved catalyst composition is a supported catalyst system that includes at least one titanium compound, at least one magnesium compound, at least one electron donor compound, at least one activator compound, and at least one silica support material, the at least one silica support material having a median particle size in the range of from 20 to 50 microns with no more than 10% of the particles having a size less than 10 microns and no more than 10% of the particles having a size greater than 50 microns and average pore diameter of at least ≧220 angstroms.

US Patent:

7414099, Aug 19, 2008

Filed:

Oct 13, 2005

Appl. No.:

11/249193

Inventors:

Maria A. Apecetche - Bridgewater NJ, US
John Moorhouse - Kendall Park NJ, US
Mark G. Goode - Hurricane WV, US
Ronald S. Eisinger - Charleston WV, US
Kevin J. Cann - Rocky Hill NJ, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 4/69
C08F 4/622

US Classification:

526169, 526129, 526172, 502103, 502117, 502120, 502171

Abstract:

Embodiments of the present invention include a method of polymerizing olefins comprising contacting olefins with a catalyst composition made by the process of combining a hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposition time greater than 2 hours to form a catalyst composition. Embodiments of the present invention also include catalyst compositions comprising a hindered polyalicyclic alkyl catalyst precursor made by the process of combining the hindered polyalicyclic alkyl catalyst precursor with a particulate inorganic oxide for a deposition time greater than 2 hours to form the catalyst composition. In one embodiment, the hindered polyalicyclic alkyl catalyst precursor is formed by first combining an acid, a compound having the formula RX, and a metal oxide selected from the group consisting of Group 3 to Group 10 oxide compounds to produce a catalyst precursor; characterized in that R is selected from the group consisting of hindered polyalicyclic alkyls, and substituted derivatives thereof, and X is selected from the group consisting of any suitable leaving group.