Patents Assigned to Exxon Chemical Patents Inc
  • Patent number: 5962378
    Abstract: The present invention provides functional fluid compositions containing a major portion of oil of lubricating viscosity and a novel and synergistic combination of an acylated nitrogen-containing compound having an olefinic substituent averaging in carbon number from 20 to 60 and at least one ashless detergent/dispersant.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: October 5, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: George M. Tiffany, Rolfe J. Hartley, Antonio Gutierrez, Emil J. Meny
  • Patent number: 5960643
    Abstract: This invention comprises a method of producing ethylene rich product streams from a pressurized charge gas mixture of olefins and other components received from olefin generation/preparation processes. The method of this invention may eliminate the need for cryogenic fractional distillation and other special separation equipment operating at temperatures below -55.degree. F., and thus also potentially eliminate the refrigeration and heat exchange equipment needed to achieve those low temperatures. Alternatively, the method of this invention may eliminate the need for a circulating lean oil absorbant material, and thus also potentially eliminate the heat exchange equipment and reduces the refrigeration and fractional distillation load required to manage that material.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: October 5, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Keith H. Kuechler, David R. Lumgair
  • Patent number: 5962381
    Abstract: A lubricant composition capable of improving the fuel economy of an internal combustion engine and comprising a base oil as a major component and from about 2 to about 15 wt. %, based on the weight of composition, of a fuel economy improving additive having a viscosity greater than the viscosity of the bulk lubricant and being selected such that the lubricant is characterized by (1) a positive deviation from that of a theoretical line when the elastohydrodynamic (EHD) film thickness thereof is plotted against entrainment speed on a log basis, and by (2) a traction coefficient under both hydrodynamic and mixed lubrication conditions which is lower than it would have been if the fuel economy improving additive were not present in the lubricant is disclosed.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: October 5, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventor: Charles Herbert Bovington
  • Patent number: 5958848
    Abstract: Multigrade crankcase lubricants having low concentrations of chlorine and sulphated ash use multifunctional viscosity modifiers in place of conventional chlorine-containing dispersants. The lubricant contains at least 1.5 weight percent of a chlorine-containing dispersant that is a reaction product of a polyisobutenyl succinic anhydride and an organic amine, a multifunctional viscosity modifier and a detergent system that comprises a metal sulfonateand one or more metal salts of a phenolic organic acid selected from the group consisting of alkyl phenols, sulfurized alkyl phenols, and alkyl salicylic acids in an amount that provides at least 0.0025 gram equivalents of phenolic hydroxide. At least one of the metal salts is overbased and the detergent system includes not more than 0.008 gram equivalent % carbonate. The gram equivalent ratio of the total amount of phenolic hydroxide to the metal sulfonate is at least 1.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: September 28, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventor: Robert Robson
  • Patent number: 5958366
    Abstract: Large crystal zeolites are prepared by heating a zeolite synthesis mixture under agitation to a temperature equal to or less than the effective nucleation temperature of the zeolite synthesis mixture and thereafter the zeolite synthesis mixture is heated without agitation to a temperature equal to or greater than the effective nucleation temperature of the zeolite synthesis mixture.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: September 28, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert Scott Smith, Johannes Petrus Verduijn, deceased, Jannetje Maatje van den Berge, executrix, Thomas H. Colle, Gary David Mohr, Gotz Burgfels, Josef Schonlinner
  • Patent number: 5958319
    Abstract: Films, made of polyethylenes, and articles made therefrom exhibit, for a given density, improved oxygen transmission. The polyethylenes are produced in a metallocene-catalyzed production process. The films may be made by a cast film process, and may be made under conditions that raise the birefringence and the oxygen transmission rate of the film, such as increasing strain rate decreasing melt temperature, increasing quench rates, or may be post-extrusion treated, for instance annealed or cold drawn. Combinations of both extrusion techniques and post-extrusion techniques may also be used. Polyethylenes utilized for making such films typically have a Composition Distribution Breadth Index above 50%, a M.sub.w /M.sub.n below 3, and a M.sub.z /M.sub.w below 2. The permeability of the films so made will be 50% or more above the permeability of films based on similar resins based on previously used film formation techniques.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: September 28, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventor: Patrick Brant
  • Patent number: 5958089
    Abstract: An additive composition comprising: (a) an ashless dispersant comprising an acylated nitrogen compound; and (b) a carboxylic acid, or an ester of the carboxylic acid and an alcohol wherein the acid has from 2 to 50 carbon atoms and the alcohol has one or more carbon atoms, which provides an improvement in the lubricity of fuel oils and exhibits improved solubility in the fuel oil.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: September 28, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Brid Dillworth, Rinaldo Caprotti
  • Patent number: 5959049
    Abstract: A process for producing a copolymer of isoolefin having between 4 and 7 carbon atoms and para-alkylstyrene is provided. The process comprises admixing the isoolefin and the para-alkylstyrene in a copolymerization reactor under copolymerization conditions in the presence of a diluent, and a Lewis Acid catalyst, and maintaining the copolymerization reactor substantially free of impurities which can complex with the catalyst or copolymerize with the isoolefin or the para-alkylstyrene.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: September 28, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventors: Kenneth William Powers, Hsien-Chang Wang
  • Patent number: 5955550
    Abstract: This invention relates to a polymeric vehicle which reduces or eliminates VOCs in coating compositions by providing a formulated coating composition which does not require an organic solvent for application to a substrate. The polymeric vehicle of the invention comprises at least one linear oligoester diol effective for crosslinking with a crosslinker, and having a number average molecular weight within controlled limits of a polydispersity index effective for controlling the viscosity of the polymeric vehicle.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: September 21, 1999
    Assignees: Exxon Chemical Patents, Inc., Eastern Michigan University
    Inventors: Frank N. Jones, Shou-Kuan Fu, Xiaoying Yuan, Jun Hua, Vijay Swarup
  • Patent number: 5955625
    Abstract: Described are certain monocyclopentadienyl Group IV B metal compounds, catalyst systems comprising such monocyclopentadienyl metal compounds and an activator, and a process using such catalyst systems for the production of polyolefins, particularly high molecular weight ethylene-.alpha.-olefin copolymers having a high level of .alpha.-olefin incorporation.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 21, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventor: Jo Ann Marie Canich
  • Patent number: 5952427
    Abstract: Elastomeric polymers including ethylene, alpha-olefin and vinyl norbornene are shown to have improved extrusion characteristics, improved electrical properties, improved cure characteristics compared to ethylene, alpha-olefin, non-conjugated diene elastomeric polymers containing non-conjugated dienes other than vinyl norbornene. The elastomeric polymers containing vinyl norbornene generally have a branching index below 0.5. Such elastomeric polymers are combined with up to 30 parts of metallocene catalyzed ethylene, alpha-olefin copolymers to improve physical properties.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: September 14, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Narayanaswami Raja Dharmarajan, Periagaram Srinivasan Ravishankar, Charles Douglas Burrage
  • Patent number: 5952541
    Abstract: Lead impurities are removed from a liquid hydrocarbon stream by contacting the hydrocarbon stream with an adsorbent, which has been prepared by contacting the adsorbent with an organohalide under conditions which cause the organohalide to decompose; thus, producing an adsorbent containing hydrogen halide.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: September 14, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: John Di-Yi Ou, Daniel David Rosenfeld
  • Patent number: 5952538
    Abstract: The present invention relates to methods for the converting oxygenates to olefins. More particularly, the invention relates to methods for converting oxygenates to olefins with improved olefin yields and decreased yields of undesirable methane and other light saturate byproducts.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: September 14, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Stephen Neil Vaughn, David R. Lumgair, Hsiang-ning N. Sun
  • Patent number: 5952539
    Abstract: A process for producing normally gaseous olefins from two different process units sharing common downstream quench and fractionation facilities, wherein one of the process units is a short contact time mechanically fluidized vaporization unit for processing petroleum residual feedstocks and the other is a conventional steam cracking unit.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: September 14, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Noel M. Seimandi, Tony T. Cheng, Willibald Serrand, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Hans A. Weisenberger
  • Patent number: 5945485
    Abstract: The present invention relates to hydrogenated polybutadiene comprising monomeric units of 1,4-butadiene and 1,2-butadiene addition products. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: August 31, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventors: Mark Joseph Struglinski, Gary William VerStrate, Lewis J. Fetters
  • Patent number: 5942472
    Abstract: An improved power transmission fluid is formed which comprises a major amount of lubricating oil and an additive combination comprising (a) a viscosity modifier having a molecular weight no greater than about 175,000 atomic mass units, and (b) a selected friction modifier.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: August 24, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Raymond Frederick Watts, David Edward Gindelberger, Christopher William Cornish
  • Patent number: 5942474
    Abstract: A two-cycle oil which is 10 to 20% of an ester of technical grade pentaerythriol with a mixture of (a) branched C8 and (b) mixed linear C8 and C10 monocarboxylic acids, having a viscosity of 6 to 8 cSt at 100.degree. C., 18 to 30% of an oxo alcohol ester of a dicarboxylic acid having a viscosity of 3 to 10 cSt at 100.degree. C., 30 to 40% of a polybutene having an Mn of 300-1500, 15 to 35% of a normally liquid solvent having a boiling point up to 300.degree. C., 0 to 5% of other lubricating oil additives.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: August 24, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventors: George Mortimer Tiffany, Eric Lewis, George C L'Heureux
  • Patent number: 5942475
    Abstract: A crankcase engine lubricant which comprises the add mixture of the following components: (A) a lubricating oil which comprises the add mixture of the following components: a complex alcohol ester basestock and at least one additional basestock; and (B) an additive package; wherein the crankcase engine lubricant exhibits a percent fuel economy improvement in the range between about 0.3 to 5.0%, versus the lubricating oil without the complex alcohol ester basestock.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: August 24, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Richard H. Schlosberg, David Wayne Turner, Martin A. Krevalis, Fay H. Gordon, Ulrich Witten
  • Patent number: 5942587
    Abstract: An ethylene cyclic olefin polymer, particularly an ethylene/norbornene copolymer and an ethylene/norbornene/alpha olefin terpolymer resin, of improved toughness and processibility for film production. This invention provides ethylene based resins which are processible like an LLDPE but which are significantly improved with respect to their capability to be fabricated into a film layer, particularly by a blown bubble extrusion technique. Films prepared of the resins of this invention are significantly improved with respect to certain of their film properties, such as tear strength, without detracting from the beneficial properties that an LLDPE-like resin otherwise provides to a film. Molding application of the above E/NB copolymers and E/NB/O terpolymers is also disclosed.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 24, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Palanisamy Arjunan, Bruce A. Harrington, Eric J. Markel, Scott K. Jackson
  • Patent number: 5939365
    Abstract: A lubricant which comprises: a mineral oil basestock which has been dewaxed via catalytic cracking and/or catalytic isomerization; an alkylene-alkylene copolymer; and a lubricating oil flow improver formed from the reaction product of: (a) an unsaturated carboxy ester formed via the esterification of an unsaturated carboxylic acid or its corresponding anhydride with a monohydric aliphatic alcohol having an average carbon number of between about 10 to 18, the unsaturated carboxy ester having the formula: ##STR1## wherein R' is selected from the group consisting of hydrogen and COOR and wherein R is a C.sub.6 to C.sub.22 alkyl group; and (b) a monomer selected from the group consisting of(i) a vinyl ester having the formula: ##STR2## wherein R.sub.1 comprises an alkyl group containing from 1 to 18 carbon atoms;(ii) an olefin having the formula ##STR3## wherein R.sub.1 and R.sub.2 can independently be hydrogen, an alkyl having from 1 to 28 carbon atoms, or a substituted aryl group, provided both R.sub.1 and R.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: August 17, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John V. Redpath, Arunas T. Lapinas, David J. Martella, Albert Rossi, William M. Davis