Michael Scott Driver

US Patent:

6395948, May 28, 2002

Filed:

May 31, 2000

Appl. No.:

09/588103

Inventors:

Kenneth D. Hope - Kingwood TX
Michael S. Driver - San Francisco CA
Thomas V. Harris - Benicia CA

Assignee:

Chevron Chemical Company LLC - Houston TX

International Classification:

C07C 204

US Classification:

585510, 585512, 585513, 585514, 585520

Abstract:

A process for preparing very high viscosity polyalphaolefins using an acidic ionic liquid oligomerization catalyst in the absence of an organic diluent and the products formed thereby.

US Patent:

6849774, Feb 1, 2005

Filed:

Dec 31, 2001

Appl. No.:

10/037044

Inventors:

Laura C. Boudreau - Houston TX, US
Michael S. Driver - San Francisco CA, US
Curt L. Munson - Oakland CA, US
William L. Schinski - San Rafael CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

C07C 700
C07C 710
C07C 7148
C07C 7152

US Classification:

585809, 585810, 585843, 585845, 585849, 585850, 208219, 208223

Abstract:

Methods for separating di-olefins from mono-olefins, and olefins from non-olefins such as paraffins, oxygenates and aromatics; are provided. The methods use metal salts which complex both mono-olefins and di-olefins, but which selectively complex di-olefins in the presence of mono-olefins. The metal salts are dissolved or suspended in ionic liquids, which tend to have virtually no vapor pressure. Preferred salts are Group IB salts, more preferably silver and copper salts. A preferred silver salt is silver tetrafluoroborate. A preferred copper salt is silver CuOTf. Preferred ionic liquids are those which form stable solutions, suspensions or dispersions of the metal salts, which do not dissolve unwanted non-olefins, and which do not isomerize the mono- or di-olefins. The equivalents of the metal salt can be adjusted so that di-olefins are selectively adsorbed from mixtures of mono- and di-olefins. Alternatively, both mono- and di-olefins can be adsorbed, and the mono-olefins selectively desorbed.

US Patent:

7259284, Aug 21, 2007

Filed:

Jul 27, 2004

Appl. No.:

10/900221

Inventors:

Kenneth D. Hope - Kingwood TX, US
Donald W. Twomey - Kingwood TX, US
Michael S. Driver - San Francisco CA, US
Donald A. Stern - Kingwood TX, US
J. Barry Collins - New Caney TX, US
Thomas V. Harris - Benicia CA, US

Assignee:

Chevron Phillips Chemical Company, LP - The Woodlands TX

International Classification:

C07C 2/04

US Classification:

585510, 585512, 585513, 585514, 585520

Abstract:

A process for preparing very high viscosity polyalphaolefins using an acidic ionic liquid oligomerization catalyst in the absence of an organic diluent and the products formed thereby. A method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.

US Patent:

20020128532, Sep 12, 2002

Filed:

Feb 19, 2002

Appl. No.:

10/078759

Inventors:

Kenneth Hope - Kingwood TX, US
Michael Driver - San Francisco CA, US
Thomas Harris - Benicia CA, US

Assignee:

Chevron Chemical Company LLC

International Classification:

C07C002/02
C07C002/06

US Classification:

585/521000, 585/522000

Abstract:

A process for preparing very high viscosity polyalphaolefins using an acidic ionic liquid oligomerization catalyst in the absence of an organic diluent and the products formed thereby.

US Patent:

20170051087, Feb 23, 2017

Filed:

Aug 19, 2015

Appl. No.:

14/829987

Inventors:

- The Woodlands TX, US
- San Ramon CA, US
Kenneth D. HOPE - Kingwood TX, US
Michael S. DRIVER - Oakland CA, US
Hye-Kyung TIMKEN - Albany CA, US

International Classification:

C08F 110/14
C07C 5/03
B01J 31/02
C07C 2/26

Abstract:

Disclosed herein are embodiments of a process which generally includes contacting i) a monomer or mixture of monomers, ii) a haloaluminate ionic liquid, and iii) one or more halide components in a reaction zone, and oligomerizing the monomer or mixture of monomers in the reaction zone to form an oligomer product. The combination of the haloaluminate ionic liquid and halide component can constitute a catalyst system which is used in embodiments of the process to produce the oligomer product.