Patents Assigned to Exxon Chemical Patents Inc
  • Patent number: 7288590
    Abstract: 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: Grant
    Filed: June 26, 2001
    Date of Patent: October 30, 2007
    Assignees: Exxon Chemical Patents, Inc., The Dow Chemical Company
    Inventors: Jacques S. Lechat, Kenneth Lewtas, Roger R. Delme, Oliver J. Georjon, Francois-Xavier Gibert, Gerard Marin, Michael O. Myers
  • Patent number: 6831203
    Abstract: 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: Grant
    Filed: December 6, 1999
    Date of Patent: December 14, 2004
    Assignee: Exxon Chemical Patent Inc.
    Inventors: Gary David Mohr, Johannes Petrus Verduijn
  • Patent number: 6767374
    Abstract: Hydrogenated block copolymers are used as a component in a cold flow additive composition.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: July 27, 2004
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Dhanesh Gordon Goberdhan, Robert Dryden Tack, Kenneth Lewtas, Andrew Matthew McAleer, Lewis John Fetters, John Huang
  • Patent number: 6652609
    Abstract: 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: Grant
    Filed: July 8, 1998
    Date of Patent: November 25, 2003
    Assignee: Exxon Chemical Patents Inc
    Inventor: Rinaldo Caprotti
  • Publication number: 20030168776
    Abstract: 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: Application
    Filed: February 11, 2003
    Publication date: September 11, 2003
    Applicant: Exxon Chemical Patents Inc.
    Inventors: Kevin A. Brady, John H. Mackay
  • Patent number: 6613722
    Abstract: 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: Grant
    Filed: March 7, 1997
    Date of Patent: September 2, 2003
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Raymond F. Watts, Philip Reeve
  • Patent number: 6610634
    Abstract: 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: Grant
    Filed: February 28, 1997
    Date of Patent: August 26, 2003
    Assignee: Exxon Chemical Patents Inc.
    Inventors: George Mortimer Tiffany, III, George Conrad L'Heureux, John Henry Smythe
  • Patent number: 6605571
    Abstract: 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: Grant
    Filed: April 2, 1999
    Date of Patent: August 12, 2003
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Gary Higton, Roger Glyde, Robert A. Wilkinson
  • Patent number: 6517335
    Abstract: 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: Grant
    Filed: July 2, 1999
    Date of Patent: February 11, 2003
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert L. Long, Richard C. Yeh, Bruce Charles Devoy
  • Patent number: 6498129
    Abstract: A two-cycle oil is disclosed comprising a polyisobutylene amine, a dispersant, a polybutene polymer, solvent and lubricating oil which exhibits improved performance.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: December 24, 2002
    Assignee: Exxon Chemical Patents INC.
    Inventors: Emil J. Meny, Rolfe J. Hartley
  • Publication number: 20020182121
    Abstract: 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 t
    Type: Application
    Filed: May 14, 2002
    Publication date: December 5, 2002
    Applicant: Exxon Chemical Patents, Inc.
    Inventor: James Austin Kendrick
  • Patent number: 6458175
    Abstract: 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: Grant
    Filed: December 2, 1998
    Date of Patent: October 1, 2002
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Edwin William Lehmann, Robert Dryden Tack
  • Patent number: 6407171
    Abstract: 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: Grant
    Filed: December 20, 1999
    Date of Patent: June 18, 2002
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Pawan K. Agarwal, Armenag H. Dekmezian
  • Patent number: 6362286
    Abstract: 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: Grant
    Filed: December 13, 1999
    Date of Patent: March 26, 2002
    Assignee: Exxon Chemical Patents Inc.
    Inventors: James Macfarlane Gardiner, Keith James Fenner, Ralph Joseph Spohn, Gary W. Ver Strate
  • Patent number: 6355074
    Abstract: 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: Grant
    Filed: May 25, 1995
    Date of Patent: March 12, 2002
    Assignee: Exxon Chemical Patents INC
    Inventors: Jacob Emert, Robert D. Lundberg, Malcolm Waddoups
  • Publication number: 20010053835
    Abstract: 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: Application
    Filed: December 19, 2000
    Publication date: December 20, 2001
    Applicant: Exxon Chemical Patents Inc.
    Inventors: Frank Joung-yei Chen, Christophe Le Deore, Roger Spitz, Alain Louis Pierre Lenack
  • Publication number: 20010042938
    Abstract: 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: Application
    Filed: June 18, 2001
    Publication date: November 22, 2001
    Applicant: Exxon Chemical Patents Inc.
    Inventor: John H. Mackay
  • Publication number: 20010041487
    Abstract: 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: Application
    Filed: June 18, 2001
    Publication date: November 15, 2001
    Applicant: Exxon Chemical Patents Inc.
    Inventors: Kevin A. Brady, John H. Mackay
  • Patent number: RE37788
    Abstract: 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: Grant
    Filed: August 27, 1998
    Date of Patent: July 9, 2002
    Assignee: Exxon Chemical Patents, Inc.
    Inventor: Jo Ann M. Canich
  • Patent number: H2073
    Abstract: 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: Grant
    Filed: June 19, 2000
    Date of Patent: July 1, 2003
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Anne M. Culotta