Michael C Rodgers

US Patent:

8013054, Sep 6, 2011

Filed:

Jun 26, 2009

Appl. No.:

12/492747

Inventors:

Michael Brendan Rodgers - Seabrook TX, US
David J. Lohse - Bridgewater NJ, US
Scott C. Solis - Houston TX, US
Rick D. Davis - Ijamsville MD, US
Jung Hun Lee - Seoul, KR

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08L 25/00
C08L 7/00
C08L 9/06
C08K 5/01
C08K 5/02

US Classification:

524574, 524525, 5245755, 524445, 524474, 524476, 524485

Abstract:

Elastomeric compositions comprising at least one Cto Cmonoolefin elastomer, at least one polyalphaolefin, and optionally at least one hydrocarbon polymer additive are disclosed. The PAO comprises oligomers of one or more Cto Calpha-olefins having a kinematic viscosity at 100 C. of 3 to 3000 cSt and a Mw/Mn of less than 4. In one aspect, the elastomeric composition may have improved flex fatigue properties and have a fatigue life of 450,000 Kc or more as measured by ASTM D 412 die C. In another aspect, an elastomeric composition may have improved impermeability and have a permeation coefficient at 40 C. of 160 cc*mm/(m−day) or less.

US Patent:

8242236, Aug 14, 2012

Filed:

May 26, 2010

Appl. No.:

12/788164

Inventors:

John P. Soisson - Houston TX, US
Yuan-Ju (Ray) Chen - Houston TX, US
Weiqing Weng - Houston TX, US
Michael Brendan Rodgers - Seabrook TX, US
Robert N. Webb - Kingwood TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

B60C 1/00
B82Y 30/00
C08J 3/21

US Classification:

528490, 524447, 4284111

Abstract:

An elastomeric nanocomposite is produced from an isobutylene-based polymer and a layered nanofiller. The process of preparing the nanocomposite includes the steps of a) polymerizing isobutylene monomers and multiolefin monomers to produce an isobutylene-based polymer; b) completing at least one mass transfer dependent stage in the process wherein, after completion of the stage and prior to any recovery of the polymer, the polymer is dissolved in a solvent to create a polymer cement; c) contacting the layered nanofiller and the polymer solvent to obtain the nanocomposite; and d) recovering the nanocomposite. The layered nanofiller may be in a slurry prior to contacting with the polymer cement.

US Patent:

8461240, Jun 11, 2013

Filed:

Apr 30, 2010

Appl. No.:

12/771775

Inventors:

Weiqing Weng - Houston TX, US
Michael Brendan Rodgers - Seabrook TX, US
John Patrick Soisson - Houston TX, US
Molly Westermann Johnston - Baytown TX, US
Robert Norman Webb - Kingwood TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08K 5/00
C08K 3/34

US Classification:

524236, 524445

Abstract:

A nanocomposite comprising at least one elastomer and at least one nanofiller. The elastomer comprises units derived from isoolefins having from 4 to 7 carbon atoms and at least one multiolefin. The nanofiller comprise a layered filler and an amine modifier wherein the nanofiller is substantially free of any unassociated amines. By eliminating unassociated amines in the nanofiller, prior to contact with the elastomer, the nanocomposite has improved processability characteristics while maintaining desired impermeability characteristics.

US Patent:

8476352, Jul 2, 2013

Filed:

Jun 26, 2009

Appl. No.:

12/492837

Inventors:

Michael B. Rodgers - Seabrook TX, US
Rick D. Davis - Ijamsville MD, US
Anthony J. Dias - Houston TX, US
Weiqing Weng - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08K 5/04
C08K 5/09

US Classification:

524427, 524 52, 524445, 5245755, 524555, 524567, 524426, 524451, 524435, 524449, 525191

Abstract:

An elastomeric compositions having improved impermeability is disclosed. The cured elastomeric composition may comprise at least one C-Cmonoolefin elastomer, a hydrocarbon polymer additive, and a clay. In some embodiments, the cured elastomeric composition has a permeation coefficient at 40 C. of 90 cc*mm/(m-day) or less. In some embodiments, the elastomeric composition is substantially free of naphthenic oil.

US Patent:

20080287623, Nov 20, 2008

Filed:

May 17, 2007

Appl. No.:

11/804071

Inventors:

Michael B. Rodgers - Seabrook TX, US
Nitin K. Tambe - Bangalore, IN
Scott C. Solis - Houston TX, US
Bharat B. Sharma - Bangalore, IN

International Classification:

C08F 110/10
C08F 14/16
C08F 2/38

US Classification:

526223

Abstract:

The invention relates to the use of alkylphenol disulfide accelerators in butyl and halobutyl compounds.

US Patent:

20090115108, May 7, 2009

Filed:

Nov 2, 2007

Appl. No.:

11/934562

Inventors:

Michael B. Rodgers - Seabrook TX, US
Sunny Jacob - Seabrook TX, US
Michael C. Bulawa - Houston TX, US
Bharat B. Sharma - Bangaluru, IN
Nitin K. Tambe - Bangalore, IN

International Classification:

B60C 1/00
C08L 23/00

US Classification:

26433115, 525240, 524495, 524525

Abstract:

Disclosed is an ethylene-propylene-diene terpolymer having isotactic polypropylene crystallinity compounded with a blend rubber wherein the terpolymer can be present in an amount effective to improve tack, aged tensile strength retention, fatigue resistance, ozone cracking resistance, and reversion resistance. Also disclosed is an elastomer composition wherein the terpolymer can have at least 60 wt % propylene-derived units, at least 6 wt % ethylene-derived units and from 0.3 to 10 wt % diene-derived units, and a tire sidewall composition comprising from 10 to 30 phr terpolymer, from 20 to 60 phr natural rubber, from 20 to 60 phr polybutadiene rubber, and an optional secondary blend rubber. Also disclosed is a vulcanizate of the elastomer composition, and articles, tire sidewalls, tires, retreaded tires, bias truck tires, off-road tires, and passenger automobile tires made with the vulcanizate. Further disclosed are processes for making molded articles and tires, and for retreading tires.

US Patent:

20090186965, Jul 23, 2009

Filed:

Dec 29, 2008

Appl. No.:

12/345154

Inventors:

Michael B. Rodgers - Seabrook TX, US
Anthony J. Dias - Houston TX, US
Rick Dowell Davis - Ijamsville MD, US
Thomas R. Barbee - Kingwood TX, US
Shawn W. Mowry - Houston TX, US

International Classification:

C08L 9/00
C08L 7/00
C08L 39/00
C08L 27/02
C08K 3/26
C08K 3/36
C08K 3/34
C08K 3/22
C08L 3/00

US Classification:

524 52, 5245755, 524571, 524555, 524567, 524426, 524445, 524449, 524451, 524435

Abstract:

Provided are elastomeric compositions comprising at least one elastomer and a hydrocarbon polymer additive. Preferably the hydrocarbon polymer additive comprises from 60 to 90% piperylene, from 5 to 15% cyclic components, from 5 to 20% styrenic components, up to 5% isoprene, up to 5% indenic components, and up to 10% amylene. Also provided are elastomeric compositions comprising at least one elastomer and a hydrocarbon polymer additive, wherein the hydrocarbon polymer additive has a molecular weight of from 520 to 650 g/mole and a glass transition temperature (Tg) of from 48 to 53 C. The elastomeric compositions are particularly useful in making tires and other cured rubber articles.

US Patent:

20100276210, Nov 4, 2010

Filed:

Apr 26, 2010

Appl. No.:

12/767503

Inventors:

Jimykumar Prajapati - Houston TX, US
Navish Makkar - Houston TX, US
Michael James Rodgers - Humble TX, US
Robert Patrick Moore - Conroe TX, US
Dwayne P. Terracina - Spring TX, US

Assignee:

SMITH INTERNATIONAL, INC. - Houston TX

International Classification:

E21B 10/55
B21K 5/02

US Classification:

175428, 761081

Abstract:

A drilling tool including a tool body and a cutter pocket formed in the tool body, the cutter pocket including a front planar surface, a back planar surface opposite the front planar surface, a first side surface between the front and back planar surfaces, and a second side surface opposite the first side surface and between the front and back planar surfaces is disclosed herein. A method of manufacturing a drilling tool including machining a tool body having a cutter pocket in accordance with embodiments disclosed herein, disposing a cutting element in the cutter pocket, and brazing the cutting element in the cutter pocket is disclosed.