Patents Represented by Attorney J. F. Hunt
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Patent number: 5859159Abstract: An improved process for the homopolymerization and copolymerization of .alpha.-olefins utilizing highly dilute .alpha.-olefin feedstreams to effect high conversions and catalyst efficiencies in the production of non-ethylene copolymers. The instant invention is particularly adaptable to polymerizing the .alpha.-olefin content of commercially available refinery feedstreams such as Raffinate-2.Type: GrantFiled: March 14, 1997Date of Patent: January 12, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Albert Rossi, Salvatore Rea, Jon E. Stanat, Linda K. Wright, Kenneth L. Kaufman, Jeffrey W. Frederick, Robert Martin Koros, Harold Wilbur Margo
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Patent number: 5756431Abstract: A Koch functionalized product, which is the reaction product of at least one hydrocarbon with carbon monoxide and a nucleophilic trapping agent, is derivatized with a heavy polyamine and a second amine. The hydrocarbon is a hydrocarbon compound or a hydrocarbon polymer. A heavy polyamine is a mixture of polyamines containing small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentaethylenehexamine and containing primarily oligomers with more than 6 nitrogens and more extensive branching. Rubber seals embrittlement is reduced or minimized.Type: GrantFiled: May 25, 1995Date of Patent: May 26, 1998Assignee: Exxon Chemical Patents IncInventors: Jacob I. Emert, Joseph V. Cusumano, David C.. Dankworth, William D. Diana, William B. Eckstrom, Keith R. Gorda, Antonio Gutierrez, Jon E. Stanat, Warren A. Thaler, Stephen Zushma
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Patent number: 5681799Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.Type: GrantFiled: May 3, 1995Date of Patent: October 28, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Won R. Song, Albert Rossi, Howard W. Turner, Howard C. Welborn, deceased, Robert D. Lundberg, Antonio Gutierrez, Robert A. Kleist
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Patent number: 5650536Abstract: A continuous process for functionalizing olefins, especially polymer olefins in a CSTR or pipe reactor. Esters are preferably produced by continuous reaction of the olefin with carbon monoxide and a nucleophilic trapping agent. The liquid-filled pipe reactor operates in plug flow with static mixers and the CSTR is operated in the substantial absence of air at constant liquid level.Type: GrantFiled: June 17, 1994Date of Patent: July 22, 1997Assignee: Exxon Chemical Patents Inc.Inventors: David C. Dankworth, William H. Cross, Joseph V. Cusumano, William D. Diana, William B. Eckstrom, Jacob I. Emert, Keith R. Gorda, Robert M. Koros, Harold W. Margo, Jon E. Stanat
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Patent number: 5646332Abstract: A rapid, batch Koch carbonylation/functionalization reaction of at least one polymer olefin, carbon monoxide, and an aliphatic or aryl alcohol in the presence of an acid catalyst with either an alcohol:polymer olefin mole ratio .gtoreq.1:1, or an acid catalyst:polymer olefin mole ratio .gtoreq.0.9:1, or both, and recovering at least 80% functionalized polymer which is predominantly ester.Type: GrantFiled: June 17, 1994Date of Patent: July 8, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Joseph V. Cusumano, David C. Dankworth, William D. Diana, William B. Eckstrom, Jacob I. Emert, Keith R. Gorda
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Patent number: 5643859Abstract: A dispersant derivatized from a functionalized hydrocarbon and a polyamine having one primary amine and 1-10, preferably 3-8 secondary or tertiary amines; preferably where said functionalized hydrocarbon is a Koch-derived hydrocarbon.Type: GrantFiled: June 17, 1994Date of Patent: July 1, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Jacob I. Emert, James P. Stokes, Warren A. Thaler, William D. Diana, Keith R. Gorda, William B. Eckstrom, David C. Dankworth, Joseph V. Cusumano
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Patent number: 5600055Abstract: Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: ##STR1## wherein a represents about 1 to about 99 mole %b represents about 0 to about 50 mole %c represents about 1 to about 99 mole %a+b+c is preferably about 100%; ##STR2## C is selected from the group consisting of: ##STR3## (III) combinations thereof. D is OH, halide, OR.sup.4, NH.sub.2, NHR.sup.3, OM', or OM";E is the residue of the reaction of at least one Lewis Acid with the D substituent of monomer unit B;R.sup.1 represents proton, C.sub.1 -C.sub.24 alkyl group, or C.sub.3 -C.sub.24 cycloalkyl;R.sup.2 represents C.sub.1 -C.sub.24 alkyl group, C.sub.3 -C.sub.24 cycloalkyl, C.sub.6 -C.sub.18 aryl, or C.sub.7 -C.sub.30 alkylaryl;R.sup.3 represents C.sub.1 -C.sub.24 alkyl, C.sub.3 -C.sub.24 cycloalkyl, C.sub.1 -C.sub.24 aryl, or C.sub.7 -C.sub.30 alkylaryl;R.sup.4 represents C.sub.1 -C.sub.24 alkyl, C.sub.3 -C.Type: GrantFiled: May 8, 1995Date of Patent: February 4, 1997Assignee: Exxon Chemical Patents IncInventors: Tze-Chiang Chung, Frank J.-Y. Chen, Jon E. Stanat, Alok Kumar
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Patent number: 5399273Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted nitrogen- or ester-containing ashless dispersant and (B) a bis-keto/thioketo compound.Type: GrantFiled: December 21, 1993Date of Patent: March 21, 1995Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
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Patent number: 5336745Abstract: A method is provided for the direct synthesis of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. All necessary reactants for the functionalization are present when polymerization is initiated. The nitrogen-containing functional group is provided as a part of a molecule having a release moiety which is preferably resonance stabilized or of tertiary alkyl type and which acts to aid the nitrogen-containing species in functioning as a leaving group.Type: GrantFiled: May 16, 1991Date of Patent: August 9, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Herve M. Cheradame, Robert D. Lundberg, Frank J. Chen, Jean de la Crois Habimana
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Patent number: 5294234Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight terminally substituted with amine compounds, which are also useful additives to oleaginous compositions, e.g., as fuel and lubricating oil dispersants.Type: GrantFiled: February 25, 1993Date of Patent: March 15, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Alan M. Schilowtiz, Antonio Gutierrez, Won R. Song
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Patent number: 5284891Abstract: Resins having a softening point from 10.degree. C. to 120.degree. C. especially 10.degree. C. to 80.degree. C. being a copolymer of a feed which is predominantly C.sub.5 olefines and diolefines and 10 to 60 wt. % of one or more monovinyl aromatic compounds are used as a tackifier for acrylic polymers or copolymers particularly in aqueous based pressure sensitive adhesives.Type: GrantFiled: August 14, 1991Date of Patent: February 8, 1994Assignee: Exxon Research & Engg.Inventors: Guy Wouters, Lutz E. Jacob
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Patent number: 5284595Abstract: The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight terminally substituted with amine compounds, which are also useful additives to oleaginous compositions, e.g., as fuel and lubricating oil dispersants.Type: GrantFiled: January 26, 1993Date of Patent: February 8, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Alan M. Schilowitz, Antonio Gutierrez, Won R. Song
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Patent number: 5275747Abstract: The present invention is directed to an oil-soluble oleaginous composition additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of from above 20,000 to about 500,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to oleaginous compositions such as lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful oleaginous composition additives, e.g., as multifunctional viscosity index improvers.Type: GrantFiled: February 1, 1990Date of Patent: January 4, 1994Assignee: Exxon Chemical Patents Inc.Inventors: Antonio Gutierrez, Robert D. Lundberg, Won R. Song
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Patent number: 5268399Abstract: Resin emulsions are prepared by forming an emulsion of an aqueous solution of an unsaturated material reactive with the resin in the liquid resin, causing the material and the resin to react and adding sufficient water to invert the emulsion to form an emulsion of the reacted resin in water to produce emulsions with improved mechanical stability useful as tackifiers in water-based pressure-sensitive adhesive coating materials in high speed coating lines giving reduced deposits and extended coating times.Type: GrantFiled: June 24, 1987Date of Patent: December 7, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Guy Wouters, Jules Callebaut, Andre Lepert
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Patent number: 4981826Abstract: Described is a magnesium-transition metal containing catalyst component, comprising a solid reaction product obtained by treating a solid support material in an inert solvent in any order with (A) a halogenated silane compound, (B) an alkoxy-containing magnesium compound, (C) and acyl halide, (D) at least one transition metal compound of a Group IVb-VIb or VIII metal, and optionally (E) treating the magnesium-transition metal containing product with an organometallic compound of a Group IIa, IIb, or IIIa metal. The magnesium-transition metal containing catalyst component, when employed with known Ziegler cocatalyst, provides a catalyst system which have very high catalytic activities for production of polyolefin of high bulk density. The polymerization kinetics of the catalyst system is controllable as a function of the reagent molar ratios selected for production of the magnesium-transition metal containing catalyst component.Type: GrantFiled: November 17, 1989Date of Patent: January 1, 1991Assignee: Exxon Chemical Patents Inc.Inventor: Anthony N. Speca
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Patent number: 4964466Abstract: A method of fracturing a subterranean formation involving the use of crosslinked gels to form a fracture and deposit particulate proppant therein followed by the introduction of dilute aqueous solutions of chlorine dioxide in the propped fracture to degrade the gel.Type: GrantFiled: August 7, 1989Date of Patent: October 23, 1990Assignee: Exxon Chemicals Patents IncInventors: Dennis A. Williams, John C. Newlove, Roger L. Horton
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Patent number: 4954471Abstract: Disclosed is a homogeneous vanadium catalyst composition prepared by the reaction of an alkylaluminum dihalide with a solid reaction product produced by reacting (A) a silicon alkoxide, (B) a hydrocarbon soluble vanadium compound, and (C) a trialkylaluminum. The solid reaction product may be produced by complexing the (A) silicon alkoxide first with either the (B) vanadium compound or the (C) trialkylaluminum. The intermediate complex (I) of such reaction is then treated with the remaining reagent (either the vanadium compound or the trialkylaluminum as the case may be) whereupon the solid reaction product (II) is formed. The solid reaction product (II) of the silicon alkoxide-vanadium compound/trialkylaluminum reaction is then reacted with (D) an alkylaluminum dihalide to produce a homogeneous hydrocarbon soluble product (III) which is highly active for catalyzing the polymerization of olefins to a polyolefin having a narrow molecular weight distribution.Type: GrantFiled: November 28, 1988Date of Patent: September 4, 1990Assignee: Exxon Chemical Patents Inc.Inventor: Steven A. Best
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Patent number: 4941917Abstract: Carbonaceous ore containing a precious metal (gold) is treated with an aqueous solution of chlorine dioxide to enhance the recovery of the precious metal.Type: GrantFiled: May 30, 1989Date of Patent: July 17, 1990Assignees: Exxon Chemical Patents Inc.,, Barrick (USA) Inc.Inventors: Lawrence M. Cenegy, Samuel G. Deal, Max E. Cooley, Paul B. Clark
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Patent number: 4941935Abstract: Substrates are coated by a process which comprises co-extruding onto the substrate, e.g. aluminium foil, a layer of an olefin terpolymer and a layer of polypropylene, the olefin terpolymer being adjacent to the substrate and the polypropylene being adjacent to the olefin terpolymer. The olefin terpolymer is a terpolymer of an olefin, e.g. ethylene, an unsaturated carboxylic acid or anhydride, e.g. acrylic acid, and an unsaturated ester, e.g. methyl acrylate, in which the amount of carboxylic acid or anhydride groups in the terpolymer is at least 3 mole % and the amount of ester groups in the terpolymer is at least 3 mole %.Type: GrantFiled: November 9, 1988Date of Patent: July 17, 1990Assignee: Exxon Chemical Patents Inc.Inventor: Bertram H. Gregory
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Patent number: 4933409Abstract: A light color optionally hydrogenated petroleum hydrocarbon resin including an aromatic hydrocarbon component useful for tackifying block copolymers is described which has a softening point of about 0.degree. C. to about 40.degree. C., a number average molecular weight (Mn) of from 350 to 600 and a molecular weight distribution (Mw/Mn) of from 1:1 to about 2.0.Type: GrantFiled: June 30, 1987Date of Patent: June 12, 1990Assignee: Exxon Chemical Patents Inc.Inventors: Morris L. Evans, Steven G. Hentges