Patents Represented by Attorney Frank T. Johmann
  • Patent number: 4069162
    Abstract: Oil compositions comprising a lubricating oil and an oil-soluble hydrocarbon polymeric viscosity index improver such as ethylene-propylene copolymers are substantially haze-free when said composition contains an anti-hazing amount of an oil-soluble strong acid containing a hydrogen dissociating moiety which has a pK of less than about 2.5, e.g. a C.sub.25 to C.sub.70 hydrocarbyl substituted sulfonic acid. The invention also relates to the process for preparing said compositions.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: January 17, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: John Brooke Gardiner, Max W. Hill, Jack Ryer
  • Patent number: 4067818
    Abstract: An aqueous dust laying formulation containing up to 2% by weight of an alkyl orthoxylene sulphonate the alkyl group containing from 8 to 11 carbons.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: January 10, 1978
    Assignee: Exxon Research and Engineering Company
    Inventor: Pierre Dominique Marin
  • Patent number: 4068057
    Abstract: Hydrocarbon polymers, preferably polymers having a degree of crystallinity of less than about 25 weight percent and comprising about 2 to 98 weight percent ethylene, and one or more C.sub.3 to C.sub.28 alpha-olefins, are mechanically grafted under an inert atmosphere and at elevated temperatures, in the presence of an amine compound, to form an amino-grafted polymer. The resulting aminated polymers are useful as sludge dispersants for fuels and lubricants. When the aminated polymers have a higher molecular weight, they are also useful as viscosity-index improvers with dispersant and/or pour point depressant activity.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: January 10, 1978
    Assignee: Exxon Research and Engineering Company
    Inventors: Lawrence J. Engel, John B. Gardiner
  • Patent number: 4058371
    Abstract: Oil-soluble aliphatic copolymer having the property of a nucleator for wax crystallization e.g., ethylenevinyl acetate copolymers having a number average molecular weight within the range of 500-50,000, in combination with an oil-soluble derivative of an aromatic copolymer are useful in improving the cold flow properties of distillate hydrocarbon oils.
    Type: Grant
    Filed: May 25, 1976
    Date of Patent: November 15, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventor: Stephan Ilnyckyj
  • Patent number: 4051048
    Abstract: An oil-soluble, hydrolyzed, anionic-graft polymer of an anionically polymerizable nitrile monomer, preferably a C.sub.3 -C.sub.24 vinyl cyanide monomer, e.g. acrylonitrile, and an anion of an oxidized copolymer of ethylene and at least one C.sub.3 to C.sub.50 alpha monoolefin, e.g. propylene, said anionic-graft polymer in its preferred form containing from about 0.005 to 2% by weight nitrogen and having a number average molecular weight of from about 1000 to 500,000, has utility as a multifunctional V.I. improver and/or dispersant for lubricating oils or as an intermediate for derivatization, as by reaction with a nitrogen compound, to increase the oil additive activity.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: September 27, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventors: Robert L. Elliott, J. Brooke Gardiner
  • Patent number: 4051050
    Abstract: An oil-soluble anionic-graft polymer of an anionically polymerizable monomer, preferably an ethylenically unsaturated nitrogen-containing monomer, e.g. acrylonitrile, and an anion of an oxidized copolymer of ethylene and at least one C.sub.3 to C.sub.50 alpha monoolefin, e.g. propylene, said anionic-graft polymer in its preferred form containing from about 0.005 to 2% by weight nitrogen and having a number average molecular weight of from about 1000 to 500,000, has utility as a multifunctional V.I. improver or dispersant for lubricating oils.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: September 27, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventors: Robert L. Elliott, John Brooke Gardiner
  • Patent number: 4049560
    Abstract: Producing an overbased magnesium phenate detergent by carbonating a mixture of a sulphur containing phenol, a smaller amount of a sulphonic acid, sulphonate or sulphate, an alkanol, magnesium oxide or hydroxide and a carboxylic acid, anhydride or salt.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: September 20, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventor: Alan Michael Dominey
  • Patent number: 4042523
    Abstract: Adducts are formed in a process which involves the reaction of an olefin, including olefin polymers, with a dimeric thionophosphine sulfide. Further derivatives may be formed by reacting the resulting olefin-thionophosphine sulfide adduct products with amines, e.g., alkylene polyamines, aziridines, phosphines or metal salts, e.g., zinc salts. Or, alkylene polyamine- or aziridine- treated olefin-thionophosphine sulfide reaction products may be further reacted with metal salts, e.g., zinc acetate. A representative material can be prepared by reacting polyisobutylene with an arylthionophosphine sulfide, and then further reacting the resulting cyclic bis(phosphinodithioic acid) anhydride product with an alkylene polyamine or aziridine, which in turn, may be further modified by reaction with zinc acetate.The oil soluble olefin-thionophosphine sulfide products, as well as its oil soluble derivatives outlined above, may be used as additives for lubricating oil, and petroleum fuels, e.g., gasoline or fuel oil.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: August 16, 1977
    Assignee: Exxon Research and Engineering Co.
    Inventor: Stanley J. Brois
  • Patent number: 4032700
    Abstract: Preparation of aminated polymeric additives useful as oil additives, for example as dispersants for hydrocarbon fuels and lubricants, and as multifunctional dispersant-viscosity index improvers for lubricants, by the reaction of amine with a halogen containing copolymer of ethylene, a C.sub.3 to C.sub.18 straight or branched chain .alpha.-olefin and a C.sub.5 to C.sub.14 acyclic or alicyclic nonconjugated diolefin, said halogen containing copolymer being prepared by the halogenation of said copolymer.
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: June 28, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Won R. Song, John Brooke Gardiner, Lawrence James Engel
  • Patent number: 4025316
    Abstract: Polymeric alkyl-hydroxy benzyl N-substituted amines having a high degree of ring formation are derived from the condensation reaction of C.sub.8 -C.sub.40 aliphatic alkyl substituted hydroxy aromatic, an aldehyde and an amine, wherein the molar ratio of said aromatic to said amine is about 2 to one, with said aldehyde being present in a molar amount in excess of said aromatic. These novel amines are useful as a detergent and/or antioxidant additive for liquid hydrocarbons, e.g., in lubricating oils for gasoline engines that have a two stroke cycle.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: May 24, 1977
    Assignee: Exxon Research and Engineering Company
    Inventor: William Harold Stover
  • Patent number: 4023980
    Abstract: Blends of paraffinic oils and hydrogenated polycyclopentadiene or polymethylcyclopentadiene.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: May 17, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Marcel Prillieux, Marcel Robert, Robert Tirtiaux
  • Patent number: 4019878
    Abstract: Additive combinations of (A) ethylene-containing polymers, e.g. copolymers of about 4 to 30 molar proportions of ethylene copolymerized with an unsaturated ester, with: (B) beeswax, (C) ozokerite wax, and/or (D) long chained .alpha.-olefins are cold flow improvers for middle-distillate petroleum fuels.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: April 26, 1977
    Assignee: Exxon Research and Engineering Company
    Inventor: Max J. Wisotsky
  • Patent number: 4017406
    Abstract: Ester derivatives of 1-aza-3,7-dioxabicyclo [3.3.0] oct-5-yl methyl alcohols which are the reaction products of organic acid materials, preferably long chain dicarboxylic anhydrides such as octadecenyl and polyisobutenylsuccinic anhydrides and aldehyde/tris [hydroxy-methyl] aminomethane (THAM) adducts or mixtures are oleaginous compositions which feature activity in gasoline as rust inhibitors and carburetor detergents; in automatic transmission fluids as friction modifiers and rust inhibitors; and, in automotive, industrial and lubricating oils as sludge dispersants, rust-inhibitors, friction modifiers and copper alloy corrosion inhibitors, the particular use depending on the molecular weight of the ester.
    Type: Grant
    Filed: May 1, 1975
    Date of Patent: April 12, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Stanley J. Brois, Jack Ryer, Esther Winans
  • Patent number: 4014662
    Abstract: Ethylene polymers in combination with an oil-soluble sulfone copolymer having a (Mn) of from about 800 to 500,000 improve the cold flow properties of distillate hydrocarbon oils.
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: March 29, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Harold N. Miller, Max J. Wisotsky
  • Patent number: 4013736
    Abstract: Synthetic hydrocarbon lubricating oils with very low pour points and low viscosities are produced by polymerizing alpha-olefins of from 5 to 20, preferably 10 to 14 carbon atoms, at temperatures in the range of 300.degree. to 800.degree. F in the presence of an acidic catalyst of the crystalline aluminosilicate zeolite molecular sieve-type. The products are predominantly of the paraffinic and naphthenic hydrocarbon types. Aromaticity can be introduced by polymerizing the olefins in the presence of aromatic hydrocarbons such as benzene. The products are useful as lubricants in arctic climates and in other applications where low pour points are required, such as for transformer oils.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: March 22, 1977
    Assignee: Exxon Research and Engineering Company
    Inventor: Charles Woo
  • Patent number: 4012330
    Abstract: The lithium salt of a reaction product of a hydrocarbon-substituted amic acid in which the hydrocarbon substituent contains about 12 to 20 carbon atoms and an amine or ammonia, is effective as rust and corrosion inhibitors in lubricating oil compositions.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: March 15, 1977
    Assignee: Exxon Research & Engineering Co.
    Inventor: Philip W. Brewster
  • Patent number: 4010006
    Abstract: Polymer blends suitable as flow improvers for crude oils, comprising a polymer having a plurality of linear paraffinic C.sub.18.sub.+ side chains, and a copolymer of ethylene and an ethylenically unsaturated compound having no such side chains.
    Type: Grant
    Filed: October 18, 1973
    Date of Patent: March 1, 1977
    Assignee: Exxon Research and Engineering Company
    Inventor: Roger Charles Price
  • Patent number: 4000353
    Abstract: Hydroxylated polymeric additives useful as additives, for example as dispersants for lubricants and hydrocarbon fuels, and multi-functional dispersant-viscosity index improvers for lubricants, can be prepared by the reaction of metal salts of polyols with a halogen containing olefin polymer, particularly ethylene containing polymers, such as: the halogenated terpolymer of ethylene, a C.sub.3 to C.sub.18 straight or branched chain .alpha.-olefin and a C.sub.5 to C.sub.14 acyclic or alicyclic nonconjugated diolefin; a terpolymer of ethylene, a C.sub.3 to C.sub.18 alpha olefin and a C.sub.5 to C.sub.14 halogen-containing olefin; halogenated copolymers of ethylene and a C.sub.3 to C.sub.18 straight or branched chain .alpha.-olefin; etc.
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: December 28, 1976
    Assignee: Exxon Research and Engineering Company
    Inventor: John Brooke Gardiner
  • Patent number: 3990979
    Abstract: Half lithium salts of aliphatic hydrocarbon substituted succinic anhydrides and acids are reacted with polyhydric alcohols to provide an effective rust and corrosion inhibiting additive preferably having dispersant properties for lubricating oil compositions.
    Type: Grant
    Filed: October 23, 1974
    Date of Patent: November 9, 1976
    Assignee: Exxon Research and Engineering Company
    Inventor: Philip W. Brewster
  • Patent number: 3984599
    Abstract: A coating composition useful in metal working processes comprises a major amount of a mineral oil having a viscosity of 100.degree.F of at least 100 SUS and (a) 1.0 to 20.0 parts by weight of a paraffin wax, (b) 0.1 to 10.0 parts by weight of a polymeric wax modifier and (c) 0.1 to 10.0 parts by weight of an extreme pressure agent. The compositions can also contain one or more rust inhibitors. Particularly preferred classes of extreme pressure agents for use in this comparison are sulfur containing agents and zinc salts of dialkyl dithiophosphates.
    Type: Grant
    Filed: October 30, 1973
    Date of Patent: October 5, 1976
    Assignee: Exxon Research and Engineering Company
    Inventor: James H. Norton