Patents Assigned to Exxon Chemical Patent Inc.
  • Patent number: 5225091
    Abstract: 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 10,000 number average molecular weight substituted with thiocarboxylic acid producing moieties (preferably acid or anhydride moieties), wherein the terminal unsaturation comprises ethenylidene unsaturation. The thiocarboxylic acid or anhydride substituted polymers 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 metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: July 6, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Won R. Song, Robert D. Lundberg, Robert A. Kleist
  • Patent number: 5224990
    Abstract: An improved clay-stabilized bituminous emulsion surface-coating composition and method of preparation therefore, including an aqueous bituminous emulsion and a surfactant selected from the group consisting of neutral polyamines, partially and fully acid-neutralized polyamine salts, and mixtures thereof having the structural formula[R(NH.sub.2 R").sub.n NH.sub.n,].sup.+Yz Y(X.sup.-z)wherein R is a lipophile selected from the group consisting of ##STR1## R' is an alkyl chain having 3-26 carbon atoms, R" is a hydrocarbon fragment having from 2-6 carbon atoms, n is an integer from 0-4, n' is an integer from 2-3, z is an integer from 0-5 corresponding to the degree of surfactant neutralization and positive charge, X is an anion selected from the group consisting of fully- or partially-unprotonated mono- or polyacids, and Y is an integer from 0-5 corresponding to the number of anions having a negative z charge.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: July 6, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Stephen Vicenzi, Ken F. Gryzbowski
  • Patent number: 5225483
    Abstract: A thermoplastic composition is provided which comprises a blend of a thermoplastic, such as a copolymer of styrene and maleic anhydride; polypropylene; a modified elastomeric component, such as EPM or EPDM, which has been modified with a specified functional monomer, such as a 2-substituted-5-norbornene, and an amine-modified maleic anhydride grafted polypropylene. The composition has improved properties.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: July 6, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Sudhin Datta, Narayanaswami R. Dharmarajan, Jean M. Dekoninck, Donald A. White
  • Patent number: 5225092
    Abstract: 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: Grant
    Filed: February 1, 1990
    Date of Patent: July 6, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Alan M. Schilowitz, Antonio Gutierrez, Won R. Song
  • Patent number: 5225257
    Abstract: A thermoplastic film is provided which is especially suited for use in stretch/cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising a polymer of at least ethylene and acrylate and a non-cling layer comprising a polyolefin. One or both surfaces of the film are partially fluorinated to substantially increase the film cling and inhibit blocking.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: July 6, 1993
    Assignee: Exxon Chemical Patents Inc
    Inventor: Patrick Brant
  • Patent number: 5223464
    Abstract: A process for regenerating a catalyst which involves washing a catalyst with a liquid at a temperature within the range of about 50.degree. C. to about 70.degree. C. for a time sufficient to remove foulants thereby recovering catalyst activity. The wash liquid is preferably a member selected from the group consisting of ethers, alcohols and mixtures of ethers and alcohols wherein the ether is a tertiary alkyl ether, preferably selected from the group consisting of tertiary amyl methyl ether and methyl tertiary butyl ether, and wherein the alcohol is preferably selected from the group consisting of tertiary butyl alcohol and methanol. The catalyst is preferably a clay treated with an acid selected from the group consisting of hydrofluoric acid, hydrochloric acid and mixtures of hydrofluoric and hydrochloric acid, wherein the clay is preferably selected from the group consisting of montmorillonite, kaolinite, attapulgite, bentoninte and natural clay.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: June 29, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Robert C. Michaelson, Gustavo Cerri
  • Patent number: 5223603
    Abstract: Oxygen barrier structures such as packages, laminated films, etc. are disclosed. The oxygen barrier has at least one layer comprising a polymer having oxamide units of the formula: ##STR1## and may further include amide units selected from the formulae: ##STR2## wherein R and R' are independently hydrocarbyl radicals of from 2 to 20 carbon atoms, and R" is a hydrocarbyl radical of from 1 to 18 carbon atoms. The polyoxamide or copoly(amide-oxamide) layer has an oxygen permeability which, at a high relative humidity, is less than or about the same as the oxygen permeability at a low relative humidity. Also disclosed is a method of protecting an article such as a foodstuff against oxidation by packaging the article with the oxygen barrier structure.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: June 29, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Tad L. Patton, James M. Farley
  • Patent number: 5221491
    Abstract: The invention relates to a two-cycle oil additive, compositions and concentrates containing said two-cycle oil additive and methods of preparing and using the two-cycle oil additive which comprises the reaction product of (A) at least one high molecular weight acylating agent (B) at least one polyalkylenpolyamine and (C) at least one monocarboxylic second acylating agent, wherein the molar ratio of the carboxylic acid acylating agent to the high molecular weight acylating agent is at least 3:1 and wherein the tertiary amine to total amine ratio of the reaction product is at least 0.7:1. The two-cycle oil additive of the invention are dispersant additives which will improve engine cleanliness and which will substantially avoid the formation of insoluble gel agglomerants at low temperatures which can adversely affect engine performance.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: June 22, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Renee M. Roper, George M. Tiffany, III, William H. Stover, William R. Thompson
  • Patent number: 5219480
    Abstract: The present invention is directed to oil-soluble lubricating oil viscosity index improver/dispersant additives comprising Mannich Base condensates of a grafted ethylene copolymer, an optionally alkyl-substituted N-hydroxyaryl compound, an aldehyde, and a monosecondary amine, whereby oil solutions, particularly oil concentrates, of said additives which are characterized by minimal viscosity change over an extended period of time. These additives comprise a copolymer of ethylene with one or more C.sub.3 to C.sub.28 alpha-olefins, preferably propylene, which have been grafted with acid moieties, e.g. maleic anhydride, preferably using a free radical initiator in a solvent such as a lubricating oil, which is then either (a) reacted with an N-hydroxyaryl amine and then condensed with an aldehyde and a monosecondary amine to form the Mannich Base viscosity index improver/dispersant material, or (b) reacted with a preformed Mannich Base condensate of an N-hydroxyaryl amine, aldehyde and the monosecondary amine.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: June 15, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert A. Kleist, Ricardo Bloch
  • Patent number: 5220099
    Abstract: A process for purifying linear paraffins in which a hydrocarbon stream containing linear paraffins contaminated with aromatics, sulfur-, nitrogen-, and oxygen-containing compounds, and color bodies, but essentially free of olefins, is contacted with a zeolitic solid adsorbent such as a NaX zeolite or zeolite MgY. After adsorption the zeolitic solid adsorbent is desorbed with an alkyl-substituted aromatic desorbent such as toluene.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: June 15, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: James L. Schreiner, Robert A. Britton, Charles T. Dickson, Frederick A. Pehler, Jr.
  • Patent number: 5218134
    Abstract: Esters are prepared directly from 2-substituted alcohols, such as Guerbet alcohols, by dehydrogenating and esterifying the alcohol at 170.degree. C.-240.degree. C. in the presence of a catalyst system comprising (i) platinum on activated carbon, zinc oxide or zinc C.sub.2 -C.sub.20 carboxylate and (ii) NaOH, KOH or LiOH. Mixed esters may also be prepared from appropriate mixtures of 2-substituted alcohols.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: June 8, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Roy L. Pruett, Edmund J. Mozeleski
  • Patent number: 5217634
    Abstract: A material useful as a dispersant additive in oleaginous compositions selected from fuels and lubricating oils comprising the reaction products of:(i) at least one intermediate adduct comprised of the reaction products of(a) at least one polyepoxide, and(b) at least one member selected from the group consisting of polyamines, polyols, and amino alcohols; and(ii) at least one of (a) hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid producing material; (b) an aldehyde and a hydrocarbyl substituted hydroxy aromatic compound; or (c) an aldehyde and the reaction product of a hydrocarbyl substituted C.sub.3 -C.sub.10 monocarboxylic or C.sub.4 -C.sub.10 dicarboxylic acid or anhydride and an amine substituted hydroxy aromatic compound.Also included is a process for preparing said material and an oleaginous composition containing said material.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: June 8, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Jacob Emert, Antonio Gutierrez, Robert D. Lundberg
  • Patent number: 5217074
    Abstract: Granules containing a gel breaker are used in a well treatment involving the use of a gelled fluid. The granules exhibit delayed release of the breaker to permit placement of the gelled fluid into the subterranean formation.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: June 8, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Lee A. McDougall, Fati Malekahmadi, Dennis Williams
  • Patent number: 5215667
    Abstract: A method for separating a water soluble Group VIII noble metal catalyst from the crude reaction product of a noble metal-catalyzed hydroformylation reaction run in aqueous solution, in an aqueous emulsion or as an aqueous suspension, the crude reaction product including an aqueous phase containing a water soluble Group VIII noble metal-ligand complex catalyst, and an organic phase containing unreacted olefin feed and an organic hydroformylation reaction product, which comprises: (a) contacting the crude reaction product with a hydrophobic membrane capable of allowing a substantial portion of the unreacted olefin feed and the organic hydroformylation reaction product to pass therethrough while retaining a substantial portion of the water soluble Group VIII noble metal-ligand complex catalyst; (b) removing unreacted olefin feed and organic hydroformylation reaction product which passes through the hydrophobic membrane as permeate; and (c) retaining the water soluble Group VIII noble metal-ligand complex catalys
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: June 1, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Joel R. Livingston, Jr., Edmund J. Mozeleski, Guido Sartori
  • Patent number: 5215649
    Abstract: A process for the production of gaseous olefins which involves introducing a hydrocarbon feedstock stream into a high temperature thermal cracking zone to produce a high temperature cracked product stream, quenching the cracked product stream to stop the cracking reactions, injecting at least one HDD (hydrogen donor diluent) into the cracked product stream at or downstream of the point at which the reaction is quenched, recovering normally gaseous olefins from the cracked product stream, and recovering a liquid product stream containing a diminished asphaltene content.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: June 1, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Dane C. Grenoble, Roy T. Halle, Martin L. Gorbaty, Harold W. Helmke
  • Patent number: 5214157
    Abstract: A system for producing phthalic anhydride by vapor phase oxidation of orthoxylene, naphthalene or the like which comprises an oxidation section, and a finishing section comprising: a means for decomposing crude phthalic anhydride liquid such that water, various other by-products and small amounts of phthalic anhydride are removed from the crude phthalic anhydride liquid as decomposer vapor; a means for venting decomposer vapor directly to a top portion of a first fractionation column; the first fractionation column being capable of distilling crude phthalic anhydride liquid received from the decomposer means for the purpose of removing light ends therefrom and which is also capable of recovering phthalic anhydride contained within vapors being vented therefrom; and a second fractionation column capable of distilling the crude phthalic anhydride liquid from the first fractionation column and removing tailings therefrom to produce substantially pure phthalic anhydride; whereby phthalic anhydride is recovered fr
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: May 25, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Francis J. Healy, Herbert P. Dengler
  • Patent number: 5213698
    Abstract: According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) an amido-amine characterized by being a reaction product of an alpha, beta-unsaturated compound of the formula: ##STR1## wherein X is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5) , and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, and bis(para-amino cyclohexyl) methane or oligomers thereof.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: May 25, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Antonio Gutierrez, Robert D. Lundberg, Robert A. Kleist
  • Patent number: 5213744
    Abstract: Polyolefin films for heat sealed packaging and twist wrapping are obtained by blending under high shear conditions and a rosin or resin, preferably hydrogenated to form a concentrate containing from 10 to 90 wt. %, preferably 20 to 60 wt. % of the resin or rosin and subsequently blending the concentrate with a and extruding the resultant blend to form a film.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: May 25, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Bernard L. L. Bossaert
  • Patent number: 5211865
    Abstract: Oleaginous compositions, particularly lubricating oil compositions, exhibiting improved antioxidant properties containing a viscosity index improving amount of a viscosity index improver-dispersant comprised of the reaction products of:(a) an oil soluble ethylene copolymer comprising from about 15 to 90 wt. % ethylene and from about 10 to 85 wt. % of at least one C.sub.3 to C.sub.28 alpha-olefin, having a number average molecular weight of from about 5,000 to 500,000, grafted with an ethylenically unsaturated carboxylic acid material having 1 or 2 acid or anhydride moieties;(b) an organic polyamine having at least two primary amino groups;(c) an aldehyde;(d) a heterocyclic nitrogen reactant having at least one --N(H)-- group in the heterocyclic ring; and, optionally,(e) an amount effective to provide a V.I. improver-dispersant exhibiting improved low temperature viscometric properties of high functionality long chain hydrocarbyl substituted dicarboxylic acid material having a functionality of at least 1.2.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: May 18, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Abhimanyu O. Patil, Robert D. Lundberg
  • Patent number: 5212208
    Abstract: A foamable composition for in situ expansion for example in a car pillar includes a base polymer derived of ethylene and an olefinically unsaturated acrylic ester with an M1 of from 0.1 to 6 and containing from 10 to 40% of ester derived units. The composition is foamed and cross-linked to adhere to the car pillar interior and provide closed cell foam acting as a moisture-sound barrier.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: May 18, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Jan R. Soderberg