Carleton Ernest Stouffer
Engineers in Bartlesville, OK

7875678, Jan 25, 2011

Apr 11, 2006

11/279308

Michael J. Hanner - Marietta OH, US
Clifford C. Pettey - Fleming OH, US
Carleton Stouffer - Bartlesville OK, US
Paul M. Hunt - Belpre OH, US
Ken E. Bowen - Belpre OH, US

Chevron Phillips Cheimcal Company, LP - The Woodlands TX

C08L 53/00, C08L 9/00, C08L 25/00, C08F 279/02, C08F 287/00

525 99, 525 88, 525 98, 525232, 525236, 525237, 525241, 525242, 525243

Compositions, processes, and methods are provided relating to styrenic polymers, including high impact polystyrene (HIPS), also referred to as rubber-modified polystyrene. In one aspect, a process is provided for making high impact polystyrenes, comprising the steps of combining a monovinylarene component, a monovinylarene-conjugated diene block copolymer, and a conjugated diene polymer. In another aspect, the feed components form an emulsion having a continuous phase and a dispersed phase. The continuous phase comprises at least a portion of the monovinylarene component and at least a portion of the conjugated diene polymer. The dispersed phase is suspended within the continuous phase, and comprises globules having at least a portion of the monovinylarene-conjugated diene block copolymer, a remaining portion of the monovinylarene component, and a remaining portion of the conjugated diene polymer. The monovinylarene component is polymerized in the presence of the emulsion alone or in the presence of other feedstocks.

8415429, Apr 9, 2013

Dec 11, 2006

11/609159

John Mark Brown - Mooresville NC, US
Michael A. Smith - Bartlesville OK, US
Nathan E. Stacy - Houston TX, US
Carleton E. Stouffer - Bartlesville OK, US
John D. Wilkey - Owasso OK, US

Chervron Phillips Chemical Company LP - The Woodlands TX

C08L 53/02

525 88, 525 89, 525 98, 525271, 525316

We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0. 05 to about 0. 33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight. We further disclose a method of shrink-wrapping an object or a group of objects by wrapping the object or the group of objects with a film containing the composition, to yield a wrapped object or group of objects, and heating the wrapped object or group of objects to a temperature and for a duration sufficient to shrink the film in at least a first direction, to yield a shrink-wrapped object or group of objects.

2013007, Mar 28, 2013

Nov 20, 2012

13/682381

Chevron Phillips Chemical Company LP - The Woodlands TX, US
Michael A. Smith - Bartlesville OK, US
Nathan E. Stacy - Houston TX, US
Carleton E. Stouffer - Bartlesville OK, US
John D. Wilkey - Owasso OK, US

CHEVRON PHILLIPS CHEMICAL COMPANY LP - The Woodlands TX

C08F 212/08, C08L 53/02

525241, 5253329

We disclose a monovinylarene-conjugated diene block copolymer containing a plurality of monovinylarene-conjugated diene mixed blocks, wherein each mixed block contains conjugated diene units and monovinylarene units in a weight ratio of about 0.05 to about 0.33. We also disclose a composition containing (a) from about 50 parts by weight to about 95 parts by weight of the monovinylarene-conjugated diene block copolymer and (b) from about 5 parts by weight to about 50 parts by weight of polystyrene; wherein the monovinylarene-conjugated diene block copolymer and the polystyrene total 100 parts by weight. We further disclose a method of shrink-wrapping an object or a group of objects by wrapping the object or the group of objects with a film containing the composition, to yield a wrapped object or group of objects, and heating the wrapped object or group of objects to a temperature and for a duration sufficient to shrink the film in at least a first direction, to yield a shrink-wrapped object or group of objects.

7193014, Mar 20, 2007

Feb 20, 2004

10/784143

John D. Wilkey - Owasso OK, US
Carleton E. Stouffer - Bartlesville OK, US
Vergil H. Rhodes - Bartlesville OK, US
Jay M. Chaffin - Bartlesville OK, US
John M. Brown - Bartlesville OK, US
David Hartsock - Bartlesville OK, US
James A. Keane - Woodlands TX, US

Chevron Phillips Chemical Company, LP - The Woodlands TX

C08L 53/02

525 93, 525 98, 525 99

We disclose compositions, comprising (i) from about 25 parts by weight to about 95 parts by weight of a monovinylarene-conjugated diene coupled block copolymer comprising at least one tapered block, having a blocky monovinylarene content of less than 90 wt % of total monovinylarene units, and comprising a terminal monovinylarene block having a molecular weight of less than 60,000 g/mol; and (ii) from about 5 parts by weight to about 75 parts by weight of a monovinylarene-alkyl(meth)acrylate copolymer, comprising (ii-a) monovinylarene units and (ii-b) either alkyl acrylate units, alkyl methacrylate units, or both. The compositions can be used in shrink film or rigid packaging applications.

8058346, Nov 15, 2011

Jul 19, 2010

12/839139

John D. Wilkey - Owasso OK, US
Carleton E. Stouffer - Bartlesville OK, US
Steven D. Bridges - Bartlesville OK, US

Chevron Phillips Chemical Company LP - The Woodlands TX

C08L 53/02

525 89, 525 98

The present invention relates to monovinylarene-conjugated diene copolymer compositions adapted for blendability with acrylate polymers. In some embodiments, such compositions are provided that are particularly resistant to blocking when stored in pellet form.

8236894, Aug 7, 2012

May 24, 2010

12/786265

John M. Brown - Mooresville NC, US
Carleton E. Stouffer - Bartlesville OK, US
John D. Wilkey - Owasso OK, US

Chevron Phillips Chemical Company LP - The Woodlands TX

C08F 297/04, C08J 5/18, C08L 53/02

525 89, 525 98, 525271, 525314

The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C. , and at least 70% shrinkage at 100° C.

2006010, May 11, 2006

Nov 9, 2004

10/984297

John Wilkey - Owasso OK, US
Carleton Stouffer - Bartlesville OK, US
Steven Bridges - Bartlesville OK, US

Chevron Phillips Chemical Company, LP - The Woodlands TX

C08F 297/02

525242000

The present invention relates to monovinylarene-conjugated diene copolymer compositions adapted for blendability with acrylate polymers. In some embodiments, such compositions are provided that are particularly resistant to blocking when stored in pellet form.

2011013, Jun 9, 2011

Jun 2, 2010

12/791965

Jeffery R. Harris - Tulsa OK, US
Marshall D. Bishop - Bartlesville OK, US
Jeffery C. Gee - Kingwood TX, US
Carleton E. Stouffer - Bartlesville OK, US

CHEVRON PHILLIPS CHEMICAL COMPANY LP - The Woodlands TX

C09K 8/24, C08G 63/08

507117, 528354

Disclosed herein is a polymer useful in a method of forming a wellbore fluid additive. This polymer comprises a polyethylene backbone comprising pendant aminoalkylsulfonic acid amides which comprise a carbonyl directly attached to a backbone carbon, and an amide formed via the amine group from the aminoalkylsulfonic acid. Methods of preparing these polymers by addition of the aminoalkylsulfonic acid to a polymeric anhydride are disclosed. Methods related to oil extraction using the wellbore fluid with the additive are also disclosed.

6239300, May 29, 2001

Feb 17, 1999

9/251564

Carleton E. Stouffer - Bartlesville OK
Syriac J. Palackal - Bartlesville OK
Gary L. Glass - Dewey OK
M. Bruce Welch - Bartlesville OK
John D. Hottovy - Bartlesville OK
Michael D. Jensen - Bartlesville OK

Phillips Petroleum Company - Bartlesville OK

C07F 1700, C07F 700

556 53

A number of process steps are provided that can be combined to produce bridged cyclopentadienyl-fluorenyl metallocenes. The process steps include production of a cyclopentadiene compound from dicyclopentadiene; production and recovery of a fulvene compound using the cyclopentadiene compound; production of a raw metallocene product using the fulvene compound; and recovery of the pure metallocene from the raw product.

7737216, Jun 15, 2010

Jan 26, 2006

11/340122

John M Brown - Mooresville NC, US
Carleton E Stouffer - Bartlesville OK, US
John D Wilkey - Owasso OK, US

Chevron Phillips Chemical Company LP - The Woodlands TX

C08J 5/18, C08F 297/04, C08L 53/02

525 89, 525 98, 525271, 525314

The present invention relates generally to monovinylarene-conjugated diene block copolymers adapted for shrinkable film applications. In one embodiment, a block copolymer is provided wherein an oriented 2 mil film of the block copolymer oriented at 100° C. or less exhibits less than 10% shrinkage at 70° C. , and at least 70% shrinkage at 100° C.