Joseph S Shveima

6403516, Jun 11, 2002

Feb 22, 1994

08/199907

Joseph S. Shveima - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B01J 2116

502 84, 502 85

A process for preparing pillared chromium phyllosilicate clay -olefin catalysts is disclosed. This process utilizes palygorskite and sepiolite clays. The pillaring of said clays comprise the steps of: (a) preparing a hydrolyzed first solution by dissolving a chromium salt and a base in water, heating said first solution to a temperature in the range of about 20Â C. to about 100Â C. while stirring continuously until the solution reaches a pH in the range of about 1. 5 to about 2. 5 and thereby producing a master batch; (b) diluting said master batch with water to produce a diluted second solution and heating said diluted second solution to produce a heated second solution; (c) adding a solid clay selected from the group consisting of sepiolites and palagorskites to said heated second solution, and continuing heating; (d) recovering said pillared chain silicate clay; (e) drying said pillared chain silicate clay to form first product.

6538077, Mar 25, 2003

Nov 4, 1999

09/434852

Joseph S. Shveima - Bartlesville OK
Max P. McDaniel - Bartlesville OK
Shirley J. Martin - Bartlesville OK
Kathy S. Collins - Bartlesville OK
Elizabeth A. Benham - Bartlesville OK
Anthony P. Eaton - Dewey OK
Ashish M. Sukhadia - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

C08F 424

526106, 502256, 502234, 502254, 526129

A novel magnesium treated silica-containing compound that is useful as a support for chromium based olefin polymerization catalyst systems is provided which produces ethylene polymers having with MWDs that promote good properties particularly in HMW film applications.

6617403, Sep 9, 2003

Aug 20, 2001

09/932411

Ashish M. Sukhadia - Bartlesville OK
Elizabeth A. Benham - Bartlesville OK
Joseph J. Bergmeister - Bartlesville OK
Rex L. Bobsein - Bartlesville OK
Gerhard K. Guenther - Bartlesville OK
Eric T. Hsieh - Bartlesville OK
Max P. McDaniel - Bartlesville OK
Steven J. Secora - Bartlesville OK
Joseph S. Shveima - Bartlesville OK
John D. Stewart - Friendswood OK

Phillips Petroleum Company - Bartlesville OK

C08F 422

526106, 526348, 5261231, 526130, 526133, 502103, 502117, 502202

A copolymer of ethylene and a higher alpha-olefin having broadened melt processing windows and reduced melt fracture can be produced using a chromium-containing catalyst system and a trialkyl boron cocatalyst. The polymerization process must be carefully controlled to produce a copolymer resin that easily can be made into articles of manufacture.

6617404, Sep 9, 2003

Feb 28, 2002

10/085513

Joseph S. Shveima - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

C08F 424

526106, 526105, 526129, 526130, 5263485, 526907, 502 84, 502 85

A process for preparing pillared chromium phyllosilicate clay -olefin catalysts is disclosed. This process utilizes palygorskite and sepiolite clays. The pillaring of said clays comprises the steps of: (a) preparing a hydrolyzed first solution by dissolving a chromium salt and a base in water, heating said first solution to a temperature in the range of about 20Â C. to about 100Â C. while stirring continuously until the solution reaches a pH in the range of about 1. 5 to about 2. 5 and thereby producing a master batch; (b) diluting said master batch with water to produce a diluted second solution and heating said diluted second solution to produce a heated second solution; (c) adding a solid clay selected from the group consisting of sepiolites and palagorskites to said heated second solution, and continuing heating; (d) recovering said pillared chain silicate clay; and (e) drying said pillared chain silicate clay to form first product. The activation of said clays comprise the steps of: (a) heating said first product at a temperature in the range of about 150Â C. to about 500Â C.

6632894, Oct 14, 2003

May 3, 2000

09/564293

Max P. McDaniel - Bartlesville OK
Joseph S. Shveima - Bartlesville OK
James L. Smith - Bartlesville OK
Kathy S. Collins - Bartlesville OK
Elizabeth A. Benham - Bartlesville OK
Anthony P. Eaton - Dewey OK
Michael D. Jensen - Bartlesville OK
Joel L. Martin - Bartlesville OK
Gil R. Hawley - Dewey OK

Phillips Petroleum Company - Bartlesville OK

C08F 206

526 89, 526160, 526348, 526948, 502118, 502152

This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and an oxide matrix composition. Processes for producing the oxide matrix composition and the catalyst composition are also provided.

6716938, Apr 6, 2004

Dec 18, 2002

10/322932

Joseph S. Shveima - Bartlesville OK
Max P. McDaniel - Bartlesville OK
Shirley J. Martin - Bartlesville OK
Kathy S. Collins - Bartlesville OK
Elizabeth A. Benham - Bartlesville OK
Anthony P. Eaton - Dewey OK
Ashish M. Sukhadia - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

C08F 424

526106, 526129, 502256, 502234, 502254

A novel magnesium treated silica-containing compound that is useful as a support for chromium based olefin polymerization catalyst systems is provided which produces ethylene polymers having with MWDs that promote good properties particularly in HMW film applications.

6828268, Dec 7, 2004

Nov 5, 1999

09/435113

Max P. McDaniel - Bartlesville OK
Joseph S. Shveima - Bartlesville OK
Elizabeth A. Benham - Bartlesville OK
Rolf L. Geerts - Bartlesville OK
James L. Smith - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

B01J 3100

502113, 502110, 502114, 502129, 502132

A catalyst system composition comprising a chromium compound supported on a silica-titania support, wherein said catalyst system has been reduced with carbon monoxide, and a cocatalyst selected from the group consisting of i) alkyl lithium compounds, ii) dialkyl aluminum alkoxides in combination with at least one metal alkyl selected from the group consisting of alkyl zinc compounds, alkyl aluminum compounds, alkyl boron compounds, and mixtures thereof and iii) mixtures thereof can be used to polymerize olefins to produce a low density polymer with a decreased melt index and/or high load melt index. This catalyst system also can be used with a Ziegler-Natta catalyst system to polymerize olefins. Polymerization processes using these catalyst system compositions are also provided. Polymers resulting from polymerization processes using the inventive catalyst and cocatalyst systems have a decreased high load melt index, decreased melt index, increased fluff bulk density, and are useful as components to make bi-modal molecular weight resins for film and/or blow molding applications.

7022781, Apr 4, 2006

Jul 5, 2005

11/174874

Max P. McDaniel - Bartlesville OK, US
Joseph S. Shveima - Bartlesville OK, US
Elizabeth A. Benham - Bartlesville OK, US
Rolf L. Geerts - Bartlesville OK, US
James L. Smith - Bartlesville OK, US

Phillips Petroleum Company - Bartlesville OK

C08F 4/02
C08F 4/646
C08F 4/69

526116, 526113, 526348, 5263484

A catalyst system composition comprising a chromium compound supported on a silica-titania support, wherein said catalyst system has been reduced with carbon monoxide, and a cocatalyst selected from the group consisting of i) alkyl lithium compounds, ii) dialkyl aluminum alkoxides in combination with at least one metal alkyl selected from the group consisting of alkyl zinc compounds, alkyl aluminum compounds, alkyl boron compounds, and mixtures thereof and iii) mixtures thereof can be used to polymerize olefins to produce a low density polymer with a decreased melt index and/or high load melt index. This catalyst system also can be used with a Ziegler-Natta catalyst system to polymerize olefins. Polymerization processes using these catalyst system compositions are also provided. Polymers resulting from polymerization processes using the inventive catalyst and cocatalyst systems have a decreased high load melt index, decreased melt index, increased fluff bulk density, and are useful as components to make bi-modal molecular weight resins for film and/or blow molding applications.