Patents Represented by Attorney Nancy T. Krawczyk
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Patent number: 7696266Abstract: The present invention relates to select elastomeric blends including at least one halogenated random copolymer. In particular, the present invention relates to compositions including at least one halogenated random copolymer of isobutylene and methylstyrene, preferably para-methylstyrene; wherein the at least one halogenated random copolymer includes at least 9.0 wt % methylstyrene, preferably para-methylstyrene, based upon the weight of the at least one halogenated random copolymer; and at least one general purpose rubber. The invention also relates to articles made from these compositions and processes for making the same.Type: GrantFiled: September 30, 2005Date of Patent: April 13, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Walter H. Waddell, Donald S. Tracey, Stuart W. Botfeld
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Patent number: 7652185Abstract: A process for reducing boron trifluoride usage and emissions associated with PAO manufacture, the process comprising distilling a portion of the crude PAO product containing a boron trifluoride-organic catalyst at a temperature sufficient to cause the boron trifluoride-organic catalyst to dissociate to produce an overhead stream comprising uncomplexed boron trifluoride and an uncomplexed organic catalyst component, contacting the uncomplexed boron trifluoride and uncomplexed organic catalyst component in a condenser column having an internal structure that increases the recombination of the uncomplexed boron trifluoride and uncomplexed organic catalyst component to form a recycle boron trifluoride-organic catalyst.Type: GrantFiled: August 17, 2004Date of Patent: January 26, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Norman Yang, Shakeel Tirmizi
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Patent number: 7652186Abstract: The invention relates to a method of making a PAO characterized by a low viscosity, low Noack volatility, and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. The products comprise trimers obtained by fractionating a hydrogenated bottoms product from an oligomerization process using said promoter system.Type: GrantFiled: January 24, 2006Date of Patent: January 26, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Maria C. B. Goze, Anatoly I. Kramer, Pramod J. Nandapurkar, Norman Yang
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Patent number: 7632886Abstract: The present invention provides a nanocomposite of an elastomer, a polymer or oligomer functionalized with a polar group, and a clay. The nanocomposite can be a mixture of a halogenated elastomer, an acid or acid anhydride modified polymer, and a clay, desirably an exfoliated clay, suitable for use as an air barrier. Also disclosed is a nanocomposite that can be a mixture of a halogenated elastomer, a polymer modified with a carboxylic acid, and an organoclay.Type: GrantFiled: December 2, 2005Date of Patent: December 15, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Weiqing Weng, Anthony Jay Dias, Kriss Randall Karp, Molly Westermann Johnston, Caiguo Gong, Carmen Neagu, Beverly Jean Poole
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Patent number: 7605205Abstract: The invention provides for processes for preparing a nanocomposite compositions including the steps of: contacting a multifunctional intercalant including a cationic moiety separated from an anionic moiety by at least 1 carbon, with a clay at a temperature and for a period of time sufficient to produce an at least partially intercalated clay; and contacting the at least partially intercalated clay with a functionalized interpolymer including one or more functional groups, at a temperature, and for a period of time sufficient to produce the nanocomposite compositions. Cured nanocomposite compositions, and articles including such nanocomposite compositions are also provided.Type: GrantFiled: November 7, 2005Date of Patent: October 20, 2009Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Caiguo Gong, Anthony Jay Dias, Weiqing Weng, Ramanan Krishnamoorti, Carmen Neagu, Molly Westermann Johnston, Beverly Jean Poole, Kriss Randall Karp
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Patent number: 7585823Abstract: The present invention comprises novel lubricating compositions, automotive gear lubricating compositions, and fluids useful in the preparation of finished automotive gear lubricants and finished gear oils, and methods of preparation thereof. One embodiment of the present invention comprises a lubricating composition comprising a blend of a PAO having a viscosity of greater than or equal to about 40 cSt. at 100° C. and less than or equal to about 1,000 cSt. at 100° C. and an ester having a viscosity of less than or equal to about 2.0 cSt. at 100° C., wherein said blend of said PAO and said ester has a viscosity index greater than or equal to the viscosity index of the PAO.Type: GrantFiled: September 10, 2004Date of Patent: September 8, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: William T. Sullivan, Halou Oumar-Mahamat
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Patent number: 7585914Abstract: The present invention provides a thermoplastic composition which may be unvulcanized or vulcanized. The thermoplastic composition can be a blend of a thermoplastic engineering resin, a halogenated terpolymer of a C4 to C7 isomonoolefin, a para-alkylstyrene, and a multiolefin. The engineering resin can be a polyamide, such as nylon 6/66 copolymers for example. The isomonoolefin can be an isobutylene for example. The multiolefin can be a C4 to C14 diene, such as isoprene for example.Type: GrantFiled: November 9, 2005Date of Patent: September 8, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Andy Haishung Tsou, David Yen-Lung Chung
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Patent number: 7557170Abstract: The method of polymerization includes the steps of a) providing a catalyst system, b) providing at least one monomer or comonomer mixture in a reaction vessel, c) introducing the catalyst into the reaction vessel, and d) polymerizing the at least one monomer or comonomer mixture to produce an isoolefin polymer. The catalyst may be soluble in the diluent used for polymerization. The polymerization contact surfaces of the reaction vessel have an arithmetic average surface roughness of less than 0.3 ?m (12 microinches).Type: GrantFiled: July 24, 2008Date of Patent: July 7, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Timothy D. Shaffer, Pamela J. Wright, J. Davis Deborah, Michael F. McDonald
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Patent number: 7550640Abstract: This invention relates to the use of 1-decene/1-dodecene olefin mixture to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to about 4000, particularly useful as lubricant base stocks.Type: GrantFiled: January 14, 2005Date of Patent: June 23, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Phil Surana, Norman Yang, Pramod J. Nandapurkar
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Patent number: 7547811Abstract: This invention relates to the use of olefin mixtures containing 1-hexene/1-decene/1-dodecene and, additionally, 1-octene or 1-decene to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to about 4000, particularly useful as lubricant base stocks.Type: GrantFiled: March 24, 2006Date of Patent: June 16, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Anatoly Ilich Kramer, Phil Surana, Pramod Jayant Nandapurkar, Norman Yang
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Patent number: 7544850Abstract: Disclosed herein is a method of making a PAO using tetradecene and particularly mixtures comprising 1-hexene, 1-decene, 1-dodecene, and 1-tetradecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. In embodiments, the product has properties similar to those obtainable using a feed of solely 1-decene.Type: GrantFiled: March 24, 2006Date of Patent: June 9, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Maria Caridad Brillantes Goze, Pramod Jayant Nandapurkar, Norman Yang
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Patent number: 7485677Abstract: The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising C4 to C7 isoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.Type: GrantFiled: May 29, 2002Date of Patent: February 3, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Anthony Jay Dias, Andy Haishung Tsou, David Yen-Lung Chung, Weiqing Weng, Caiguo Gong
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Patent number: 7407999Abstract: The present invention is a blend of a thermoplastic engineering resin and an interpolymer of, on one embodiment, a C4 to C7 isomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mixed with an exfoliated-clay, the entire blend forming a nanocomposite. The resin may or may not have a clay present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an air barrier.Type: GrantFiled: May 29, 2002Date of Patent: August 5, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Andy Haishung Tsou, Anthony Jay Dias
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Patent number: 7402636Abstract: The disclosure provides a slurry polymerization system and method to decrease polymer deposition on reactor surfaces using an oxygenate such as alcohol (16) supplied to the polymerization medium (32) separate from the catalyst feed (34).Type: GrantFiled: March 23, 2007Date of Patent: July 22, 2008Assignee: ExxonMobil Chemical Patents IncInventors: Timothy D. Shaffer, Michael F. McDonald, David Y. Chung, Robert N. Webb, Deborah J. Davis, Pamela J. Wright
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Patent number: 7278455Abstract: A pneumatic tire is capable of operation during underinflated condition and the construction of sidewalls are configured to compensate for negative cambers acting upon the tire. The inboard side of the tire is softened in comparison to the outboard side of the tire. This is achieved by either forming an asymmetrical tire in either the tire profile or the internal construction.Type: GrantFiled: December 20, 2004Date of Patent: October 9, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Marc Hedo, Johan Peter Dahlberg, Walter Dale Allen, Laurent Luigi Domenico Colantonio, Filomeno Gennaro Corvasce
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Patent number: 7252728Abstract: A tire with a changing tread pattern is formed by first forming a tire having a tread, the tread having at least one circumferential or lateral groove. Formed separately is a wearable filler, the wearable filler having a configuration corresponding to at least a portion of the circumferential or lateral groove formed in the tire. After both the tire and the wearable filler have been cured, the wearable filler is located in the radially outer portion of the circumferential or lateral groove or a portion of the circumferential or lateral groove, and secured within the grooves so as to create a groove void radially inward of the wearable filler, the void being exposed upon wear of the tire tread.Type: GrantFiled: July 12, 2004Date of Patent: August 7, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Marc Weydert, Alain Emile Francois Roesgen, Jean-Marie Pilger, Denis Dominique Nicolas Lambert, Uwe Ernst Frank
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Patent number: 7249622Abstract: A tire is manufactured on standard tire building equipment and cured in standard curing presses. The tire tread has at least one deep circumferentially extending groove. Within the groove is a separately assembled ring. The ring may be fitted into the deep groove after vulcanization of the tire. For very wide tires, two grooves with two external rings may be used or more than two grooves and beads, depending upon the tire width.Type: GrantFiled: December 15, 2003Date of Patent: July 31, 2007Assignee: The Goodyear Tire & Rubber CompanyInventor: John Kolbjoern Roedseth
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Patent number: 7249620Abstract: A tire with a changing tread pattern is formed by first forming a tire having a tread, the tread having at least one circumferential or lateral groove. A wearable filler, having a configuration corresponding to at least a portion of the circumferential or lateral groove formed in the tire, is located in the radially outer portion of the circumferential or lateral groove or a portion of the circumferential or lateral groove, and secured within the grooves so as to create a groove void radially inward of the wearable filler, the void being exposed upon wear of the tire tread.Type: GrantFiled: July 12, 2004Date of Patent: July 31, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Bernard Croissant, Claude Jacque, Alain Emile Francois Roesgen, Peter Phelps Roch, Marc Weydert, Marc Ernest Ginter, Andrew Frederick Weimer, Gia Van Nguyen, Anne-France Gabrielle Jeanne-Marie Cambron
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Patent number: 7195044Abstract: A pneumatic tire with a tread has at least two axially adjacent tread elements, the elements being separated by a groove and each element having opposing lateral sides. Connecting the axially adjacent tread elements is at least one traction biting element. The biting element has three continuous portions. The first portion extends along the lateral side of the first tread element. The second portion extends through the separating groove. The third portion extends along the lateral side of the second tread element. Each biting element forms at least two distinct edges along the lateral sides of each tread element and two distinct edges in the separating grooves.Type: GrantFiled: July 21, 2004Date of Patent: March 27, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul Bryan Maxwell, Sebastian Willy Fontaine, Walter Dale Allen, Daniel Ray Beha, Brian David Digman
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Patent number: 7165586Abstract: Disclosed is a tire having at least one reinforcing ply in the carcass, belt, or bead region of the tire. The reinforcing ply is comprised of a blended fiber cord. The cords, in combination with a preferred cure temperature adhesive, achieve a high degree of thermal stability allowing for the use of such cords in various reinforcing plies for a pneumatic tire and for preferred use for such cords in areas of the tire subject to high temperatures either in curing or performance.Type: GrantFiled: December 22, 2003Date of Patent: January 23, 2007Assignee: The Goodyear Tire & Rubber CompanyInventors: Walter Kevin Westgate, Robert John Gartland, James Gregory Gillick, Rene Francois Reuter, Frank Schmitz