Patents Assigned to Exxon Chemical Patent Inc.
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Patent number: 7288590Abstract: Improved adhesives are provided through the use of styrenic tetrablock or pentablock copolymers which have a reduced elastomeric behavior under the die-cutting conditions used in label production.Type: GrantFiled: June 26, 2001Date of Patent: October 30, 2007Assignees: Exxon Chemical Patents, Inc., The Dow Chemical CompanyInventors: Jacques S. Lechat, Kenneth Lewtas, Roger R. Delme, Oliver J. Georjon, Francois-Xavier Gibert, Gerard Marin, Michael O. Myers
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Patent number: 6831203Abstract: There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The catalyst comprises first zeolite, crystals, a binder comprising second zeolite crystals and a hydrogenation/dehydrogenation metal. The zeolite bound zeolite catalyst is prepared by converting the silica binder of a silica bound aggregate containing the first crystals of said first zeolite and at least a portion of the hydrogenation/dehydrogenation metal to said second zeolite. Conversion processes such as naphtha reforming xylene isomerization/ethylbenzene conversion, the zeolite bound zeolite catalyst has excellent performance when used in hydrocarbon conversion processes such as naphtha reforming and xylenes isomerization/ethylbenzene conversion.Type: GrantFiled: December 6, 1999Date of Patent: December 14, 2004Assignee: Exxon Chemical Patent Inc.Inventors: Gary David Mohr, Johannes Petrus Verduijn
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Patent number: 6767374Abstract: Hydrogenated block copolymers are used as a component in a cold flow additive composition.Type: GrantFiled: December 31, 1997Date of Patent: July 27, 2004Assignee: Exxon Chemical Patents Inc.Inventors: Dhanesh Gordon Goberdhan, Robert Dryden Tack, Kenneth Lewtas, Andrew Matthew McAleer, Lewis John Fetters, John Huang
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Patent number: 6652609Abstract: This invention relates to fuel oil, especially middle distillate fuel oil, compositions comprising middle distillate fuel oil and at least one fuel-soluble or fuel dispersible calcium and/or magnesium salt.Type: GrantFiled: July 8, 1998Date of Patent: November 25, 2003Assignee: Exxon Chemical Patents IncInventor: Rinaldo Caprotti
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Publication number: 20030168776Abstract: A process for rendering films, film composites, and articles made therefrom less resistant to passage of water vapor by passing a filled precursor film or film composite through the nip of interdigitating grooved rollers. The films or film composites are generally formed using a precursor film of a film forming polyolefin or polyolefin blend, with a relatively high filler loading and optionally an elastomer. A process is disclosed for making diapers or other disposable items where a relatively high water vapor is coupled with a resistance to liquid strikethrough. In one embodiment of the invention, the interdigitating grooved rollers are maintained in a temperature range of from about 91° F. to about 159° F.Type: ApplicationFiled: February 11, 2003Publication date: September 11, 2003Applicant: Exxon Chemical Patents Inc.Inventors: Kevin A. Brady, John H. Mackay
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Patent number: 6613722Abstract: A lubricating composition for lubricating a continuously variable transmission, the lubricating composition comprising a mixture of a major amount of a lubricating oil and an effective amount of a performance enhancing additive combination comprising: (a) at least one organic phosphite; (b) at least one amine salt of an organic phosphate; and (c) one or more friction modifiers selected from the group consisting of selected (1) amides, (2) succinimides, and (3) ethoxylated amines.Type: GrantFiled: March 7, 1997Date of Patent: September 2, 2003Assignee: Exxon Chemical Patents Inc.Inventors: Raymond F. Watts, Philip Reeve
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Patent number: 6610634Abstract: A two-cycle oil is disclosed consisting of a polybutene polymer, solvent and mineral oil which passes the JASO engine test for gasoline fueled two-cycle engines.Type: GrantFiled: February 28, 1997Date of Patent: August 26, 2003Assignee: Exxon Chemical Patents Inc.Inventors: George Mortimer Tiffany, III, George Conrad L'Heureux, John Henry Smythe
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Patent number: 6605571Abstract: Concentrates for lubricating oil compositions are prepared by blending at elevated temperature: (A) at least one high molecular weight ashless dispersant; and (B) at least one oil-soluble metal detergent; in the presence of (C) at least one metal salt of a dihydrocarbylphosphorodithoic acid wherein the metal of the metal salt is an alkali metal, an alkaline earth metal, or zinc, aluminium, lead, tin, molybdenum, manganese, nickel or copper.Type: GrantFiled: April 2, 1999Date of Patent: August 12, 2003Assignee: Exxon Chemical Patents Inc.Inventors: Gary Higton, Roger Glyde, Robert A. Wilkinson
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Patent number: 6517335Abstract: An apparatus for dewatering a slurry of elastomeric polymer and water, using an extruder or extruders provided with a device for measuring an actual water content of the elastomer at a position within the extruder or extruders, and a control system for controlling the moisture content of elastomeric polymer exiting the extruder or extruders through an exit die based, at least in part, on the measured water content.Type: GrantFiled: July 2, 1999Date of Patent: February 11, 2003Assignee: Exxon Chemical Patents Inc.Inventors: Robert L. Long, Richard C. Yeh, Bruce Charles Devoy
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Patent number: 6498129Abstract: A two-cycle oil is disclosed comprising a polyisobutylene amine, a dispersant, a polybutene polymer, solvent and lubricating oil which exhibits improved performance.Type: GrantFiled: September 8, 1998Date of Patent: December 24, 2002Assignee: Exxon Chemical Patents INC.Inventors: Emil J. Meny, Rolfe J. Hartley
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Publication number: 20020182121Abstract: A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (I) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to tType: ApplicationFiled: May 14, 2002Publication date: December 5, 2002Applicant: Exxon Chemical Patents, Inc.Inventor: James Austin Kendrick
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Patent number: 6458175Abstract: Compositions comprising a wax, a nucleator, and a wax growth arrestor improve the low temperature properties of fuel oils, especially high wax content fuels.Type: GrantFiled: December 2, 1998Date of Patent: October 1, 2002Assignee: Exxon Chemical Patents Inc.Inventors: Edwin William Lehmann, Robert Dryden Tack
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Patent number: 6407171Abstract: Disclosed are compositions comprising: a) an ethylene polymer component having a melting temperature greater than or equal to about 75° C., an ethylene crystallinity level of 5 weight percent or more, and a narrow compositional distribution; and b) a propylene polymer component having a melt flow rate of 500 dg/min. or more at 230° C. and a melting temperature greater than or equal to about 125° C.Type: GrantFiled: December 20, 1999Date of Patent: June 18, 2002Assignee: Exxon Chemical Patents Inc.Inventors: Pawan K. Agarwal, Armenag H. Dekmezian
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Patent number: 6362286Abstract: A method for reducing the molecular weight of olefin copolymers comprises contacting an olefin copolymer and a base oil containing less than about 0.05 wt. % sulfur in the presence of oxygen and at a temperature of at least about 60° C.Type: GrantFiled: December 13, 1999Date of Patent: March 26, 2002Assignee: Exxon Chemical Patents Inc.Inventors: James Macfarlane Gardiner, Keith James Fenner, Ralph Joseph Spohn, Gary W. Ver Strate
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Patent number: 6355074Abstract: Hydrocarbyl substituted C4 to C10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C2 to C10 monoolefin, preferably polyisobutylene, having a molecular weight of about 1500 to 5,000, preferably with a C4 to C10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.05 to 1.25 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials are useful per se as oil additives, or may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.Type: GrantFiled: May 25, 1995Date of Patent: March 12, 2002Assignee: Exxon Chemical Patents INCInventors: Jacob Emert, Robert D. Lundberg, Malcolm Waddoups
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Publication number: 20010053835Abstract: A supported Lewis acid catalyst system effective for hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions and comprising at least one Lewis acid immobilized on an anhydrous dihalide of Cd, Fe, Co, Ni, Mn or Mg is disclosed.Type: ApplicationFiled: December 19, 2000Publication date: December 20, 2001Applicant: Exxon Chemical Patents Inc.Inventors: Frank Joung-yei Chen, Christophe Le Deore, Roger Spitz, Alain Louis Pierre Lenack
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Publication number: 20010042938Abstract: Polyolefin/filler breathable films may be produced by machine or transverse direction orientation using interdigitating grooved rollers. Biaxial orientation to similarly produce breathable films may be accomplished by the same method. By heating the rollers, the breathability of the film is increased without increasing the depth of engagement of the interdigitating rollers.Type: ApplicationFiled: June 18, 2001Publication date: November 22, 2001Applicant: Exxon Chemical Patents Inc.Inventor: John H. Mackay
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Publication number: 20010041487Abstract: A process for rendering films, film composites, and articles made therefrom less resistant to passage of water vapor by passing a filled precursor film or film composite through the nip of interdigitating grooved rollers. The films or film composites are generally formed using a precursor film of a film forming polyolefin or polyolefin blend, with a relatively high filler loading and optionally an elastomer. A process is disclosed for making diapers or other disposable items where a relatively high water vapor is coupled with a resistance to liquid strikethrough. In one embodiment of the invention, the interdigitating grooved rollers are maintained in a temperature range of from about 91° F. to about 159° F.Type: ApplicationFiled: June 18, 2001Publication date: November 15, 2001Applicant: Exxon Chemical Patents Inc.Inventors: Kevin A. Brady, John H. Mackay
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Patent number: RE37788Abstract: Described are certain mono(cyclopentadienyl) Group IV B metal compounds, catalyst systems comprising such mono(cyclopentadienyl) metal compounds and an activator, and to a process using such catalyst systems for the production of polyolefins, particularly ethylene-&agr;-olefin copolymers having a high molecular weight and high level of &agr;-olefin incorporation.Type: GrantFiled: August 27, 1998Date of Patent: July 9, 2002Assignee: Exxon Chemical Patents, Inc.Inventor: Jo Ann M. Canich
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Patent number: H2073Abstract: A defect propagation resistant stretch film comprising a polymer of linear low density polyethylene and one or more copolymers selected from the group consisting of low density polyethylene, very low density polyethylene, and ultra low density polyethylene.Type: GrantFiled: June 19, 2000Date of Patent: July 1, 2003Assignee: Exxon Chemical Patents Inc.Inventor: Anne M. Culotta