Patents Represented by Attorney Frederick D. Hunter
  • Patent number: 5527624
    Abstract: The invention relates to a process for preparing sintered shapes, comprising the steps of:(1) forming a green body from a mixture comprising a major amount of at least one inorganic powder; and one or more additives selected from the group consisting of: (A) at least one reaction product of a hydroxy compound with a carboxylic acylating agent; (B) at least one Mannich reaction product; (C) at least one hydrocarbyl-substituted amine; (D) at least one aminophenol; (E) at least one reaction product of a nitrophenol and amino compound; (F) at least one basic nitrogen-containing polymer; (G) at least one carboxylic acylating agent; (H) at least one aromatic acid or derivative thereof; (I) at least one aromatic oxime; and (J) at least one overbased or gelled overbased metal salt of an acidic organic compound provided that when the carboxylic acylating agent is a hydrocarbyl-substituted carboxylic acylating agent and the hydrocarbyl group contains less than an average of 40 carbon atoms, then the carboxylic acylatin
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: June 18, 1996
    Assignee: The Lubrizol Corporation
    Inventors: William Higgins, Fred E. Heller, Reed H. Walsh, Ralph E. Kornbrekke, Stephen A. DiBiase
  • Patent number: 5527491
    Abstract: Emulsifiers are disclosed which comprise the reaction product of component (I) with component (II). Component (I) comprises the reaction product of certain carboxylic acids or anhydrides, or ester or amide derivatives thereof, with ammonia, at least one amine, at least one alkali and/or at least one alkaline-earth metal. Component (II) comprises certain phosphorus-containing acids; or metal salts of said phosphorus-containing acids, the metals being selected from the group consisting of magnesium, calcium, strontium, chromium, manganese, iron, molybdenum, cobalt, nickel, copper, silver, zinc, cadmium, aluminum, tin, lead, and mixtures of two or more thereof. These emulsifiers are useful in water-in-oil explosive emulsions.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: June 18, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Alan T. Riga, John W. Forsberg
  • Patent number: 5523005
    Abstract: Gear oil compositions are described which comprise a lubricating base oil having dissolved therein:(A) at least one phosphite ester characterized by the formula: ##STR1## wherein R.sup.1 and R.sup.2 are hydrocarbyl based groups of from 1 to 30 carbon atoms and(B) at least one metal overbased composition.Another embodiment of the invention comprises the above-mentioned (A) and (B) with(C) a sulfurization product of an aliphatic olefinic compound containing from 3 to 30 carbon atoms.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: June 4, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Stephen A. Di Biase, Curtis R. Scharf, James J. Schwind, Craig D. Tipton
  • Patent number: 5518517
    Abstract: A non-explosive water in oil emulsion fertilizer composition comprising: a discontinuous aqueous phase comprising at least one fertilizer component; a continuous oil phase; an emulsifier comprising the reaction product of at least one succinic acylating agent and at least one co-reactant selected from the group consisting of: primary alkanol amines, secondary alkanol amines, tertiary alkanol amines, primary amines, secondary amines, tertiary amines, poly-amines, alcohols, polyols, and phenols is disclosed. The ferilizer compositions provide for delayed release of the fertilizer components.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: May 21, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, John W. Forsberg, Nils O. Pearson
  • Patent number: 5518510
    Abstract: This invention relates to low-sulfur diesel fuels which are useful with diesel engines equipped with exhaust system particulate traps. These fuels contain an effective mount of an organometallic complex to lower the ignition temperature of exhaust particles collected in the trap. The sulfur content of these diesel fuels is no more than about 0.1% by weight, preferably no more than about 0.05% by weight. The organometallic complex is soluble or stably dispersible in the diesel fuel and is derived from (i) an organic compound containing at least two functional groups attached to a hydrocarbon linkage, and (ii) a metal reactant capable of forming a complex with the organic compound (i), the metal being any metal capable of reducing the ignition temperature of the exhaust particles. The functional groups include .dbd.X, --XR, --NR.sub.2, --NO.sub.2, .dbd.NR, .dbd.NXR, .dbd.N--R*--XR, ##STR1## --CN, --N.dbd.NR and --N.dbd.CR.sub.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: May 21, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Daniel T. Daly, Paul E. Adams, Nai Z. Huang, Scott T. Jolley, Frederick W. Koch, Christopher J. Kolp, Stephen H. Stoldt, Reed H. Walsh, Richard A. Denis, Dennis M. Dishong
  • Patent number: 5516441
    Abstract: A metal salt or boron compound of a hydrocarbyl-substituted aromatic hydroxy compound having at least two hydroxy-substituted aromatic rings bridged by sulfur, where at least one aromatic ring bears a substituent ortho to a hydroxy group, provides a useful lubricant additive. The substituent on the aromatic ring is an .alpha.-hydroxy aliphatic hydrocarbyl group or a --C(O)R.sup.2 group, where R.sup.2 is hydrogen or aliphatic hydrocarbyl. Preferred salts are magnesium.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: May 14, 1996
    Assignee: The Lubrizol Corporation
    Inventor: Richard A. Denis
  • Patent number: 5512079
    Abstract: A non-explosive water in oil emulsion fertilizer composition is provided which comprises:a discontinuous aqueous phase comprising at least one fertilizer component;a continuous oil phase;an emulsifier comprising the reaction product of at least one hydrocarbyl substituted succinic anhydride acylating agent and at least one tertiary alkanol amine.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: April 30, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, John W. Forsberg, Nils O. Pearson
  • Patent number: 5512192
    Abstract: A composition of matter suitable for use as a dispersant-viscosity improver for lubricating oil compositions comprises the reaction product of reactants comprising(a) an oil soluble, substantially hydrogenated, vinyl substituted aromatic-aliphatic conjugated diene block copolymer said copolymer having a number average molecular weight ranging from about 30,000 to about 300,000, grafted with an ethylenically unsaturated carboxylic acid or functional derivative thereof;(b-1) at least one polyester containing at least one condensable hydroxyl group; and(b-2) at least one polyamine having at least one condensable primary or secondary amino group, and optionally,(c) at least one hydrocarbyl substituted carboxylic acid or anhydride.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: April 30, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Richard M. Lange, Carmen V. Luciani
  • Patent number: 5508331
    Abstract: A metal overbased composition is disclosed that comprises(A) at least one natural oil comprising an animal oil or vegetable oil comprising a triglyceride of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 arc independently saturated or unsaturated aliphatic hydrocarbyl groups containing from about 8 to about 24 carbon atoms and(B) a metal base oxide (MO), hydroxide (MOH) or alkoxide (R.sup.4 OM) wherein the metal comprises an alkali or alkaline earth and R.sup.4 is a hydrocarbyl group containing from about 1 to about 24 carbon atoms, and wherein the equivalent ratio of (A):(B) is from 0.90-10:1 to form a saponified intermediate, adding 2-11 equivalents of (B) per equivalent of formed saponified intermediate and reacting excess (B) with(C) an acidic gas comprising carbon dioxide, sulfur dioxide or sulfur trioxide.This composition may also be gelled to produce a rheology control agent.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: April 16, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Willis P. Nichols, Calvin W. Schroeck, Daniel E. Barrer, Robert E. Quinn
  • Patent number: 5501809
    Abstract: An electrorheological fluid is prepared from a hydrophobic liquid medium and a dispersed particulate phase of (i) a polar solid material which is capable of exhibiting electrorheological activity in the presence of a low molecular weight polar material and (ii) a non-cellulosic polymeric material having a solubility parameter of about 15 to about 50 (MPa).sup.1/2 and exhibiting substantially no electrorheological activity in the absence of a low molecular weight polar material. The fluid optionally contains a low molecular weight polar activator. The fluid has good electrorheological performance over a broad temperature range.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: March 26, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Barton J. Schober, Carlos A. Piedrahita, Joseph W. Pialet
  • Patent number: 5490945
    Abstract: A lubricating oil composition is described which comprises a major amount of an oil of lubricating viscosity and(A) at least about 1% by weight of at least one carboxylic derivative composition produced by reacting(A-1) at least one substituted succinic acylating agent containing at least about 50 carbon atoms in the substituent with(A-2) from about 0.5 equivalent up to about 2 moles, per equivalent of acylating agent (A-1), of at least one amine compound characterized by the presence within its structure of at least one HN< group; and(B) an amount of at least one alkali metal overbased salt of a carboxylic acid or a mixture of a carboxylic acid and an organic sulfonic acid sufficient to provide at least about 0.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: February 13, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Thomas R. Smith, Mary F. Salomon, Kirk E. Davis, Jack L. Karn, John M. Cahoon
  • Patent number: 5489721
    Abstract: This invention deals with viscosity improvers which are obtained through the use of a mixed catalyst system comprising a primary and/or secondary organo halide and a Lewis acid catalyst.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: February 6, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Roger L. Sowerby, Curtis R. Scharf
  • Patent number: 5489390
    Abstract: The present invention relates to a process for reducing the chlorine content of an organochlorine compound comprising: introducing into the organochlorine compound, at least one acid selected from the group consisting of Lewis acids, mineral acids other than hydriodic acid and hydrobromic acid, and organic acids having a pKa of less than about 2 to form a mixture, and contacting the organochlorine compound with the at least one acid in the mixture for a sufficient amount of time to reduce the chlorine content of the organochlorine compound.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: February 6, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Matthew R. Sivik, Mohamed G. Fahmy
  • Patent number: 5487839
    Abstract: This invention relates to improved grease compositions comprising a major amount of an oil based simple metal soap thickened base grease and a minor amount of at least one phosphorus and boron containing composition, said phosphorus and boron containing composition prepared by reacting a combination of (A) at least one boron compound and (B) at least one phospholipid. In one embodiment, the phosphorus and boron containing composition is present in amounts sufficient to improve the extreme pressure, antiwear and lubricity properties of the base grease. In another embodiment the phosphorus and boron containing composition is present in amounts sufficient to increase the dropping point of the base grease, as determined by ASTM procedure D-2265, by at least 20.degree. C.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: January 30, 1996
    Assignee: The Lubrizol Corporation
    Inventors: James N. Vinci, Syed Q. A. Rizvi, Carmen V. Luciani
  • Patent number: 5487838
    Abstract: This invention relates to a composition prepared by reacting (A) a boron compound and (B) a phospholipid. These phospholipids are useful as lubricant additives for oil-base and water-base functional fluids. These materials act as anti-wear and/or extreme pressure agents. Further, these materials when incorporated into aqueous compositions have beneficial bacteriostatic effects, i.e., controlling bacterial growth.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: January 30, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Carmen V. Luciani, Syed Q. A. Rizvi
  • Patent number: 5486300
    Abstract: This invention relates to a lubricating oil composition, comprising:a major amount of an oil of lubricating viscosity; and(A) an amount of at least one alkali metal overbased salt of an acidic organic compound sufficient to provide at least about 0.005 equivalents of alkali metal per 100 grams of the lubricating composition;(B) at least about 1.13% by weight of at least one dispersant;(C) at least one metal dihydrocarbyl dithiophosphate; and(D) at least one antioxidant, provided that the lubricating oil composition is free of calcium overbased sulfonate; provided that the composition contains less than about 0.08% by weight calcium; and provided that (C) and (D) are not the same.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: January 23, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Mary F. Salomon, Kirk E. Davis, Jack L. Karn, John M. Cahoon
  • Patent number: 5484542
    Abstract: This invention relates to a composition comprising at least one sulfurized overbased product made by contacting (A) at least one overbased product or (A') at least one boron-containing overbased product with (B) sulfur and/or at least one source of sulfur; said overbased product (A) or boron-containing overbased product (A') being made using at least one acidic material, with the proviso that when said acidic material is other than SO.sub.2 or a source of SO.sub.2 said overbased product (A) or boron-containing overbased product (A') is contacted with an effective amount of SO.sub.2 or a source of SO.sub.2 to displace at least part of said acidic material. In one embodiment the sulfurized overbased product is an overbased thiosulfate or a boron-containing overbased thiosulfate. In one embodiment, the sulfurized overbased product is made using the overbased product (A) and the composition further comprises at least one non-sulfurized boron-containing overbased product.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: January 16, 1996
    Assignee: The Lubrizol Corporation
    Inventors: John M. Cahoon, Jack L. Karn, Nai Z. Huang, James P. Roski
  • Patent number: 5470498
    Abstract: Electrorheological fluids which exhibit good high temperature performance are made using as the disperse phase a salt of a polymer of an alkenyl substituted aromatic comonomer such as styrene and a maleic acid comonomer or derivative thereof.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: November 28, 1995
    Assignee: The Lubrizol Corporation
    Inventors: Joseph W. Pialet, Kasturi Lal, Charles P. Bryant
  • Patent number: 5464548
    Abstract: The invention includes a lubricating composition comprising a major amount of an oil of lubricating viscosity, and a minor amount of (A) a sulfite or sulfate overbased or borated overbased metal salt of an acidic organic compound, wherein the lubricating composition contains less than 1.5% by weight of the reaction product of a polyisobutene substituted succinic anhydride and a polyamine, and provided that when (A) is a sulfate overbased or borated overbased metal salt, then the lubricating composition includes (B) at least one phosphorous of boron antiwear/extreme pressure agent, or (C) a sulfur compound. The invention also includes grease and functional fluids containing the sulfite and sulfate overbased metal salts. These composition have improved antiwear, antiweld, and extreme pressure properties.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: November 7, 1995
    Assignee: The Lubrizol Corporation
    Inventors: John M. Cahoon, Jack L. Karn, Nai Z. Huang
  • Patent number: H1536
    Abstract: An overbased material is prepared in a liquid ester medium which is subject to saponification upon exposure to strong base, by preparing a mixture of an acidic material having at least about 8 carbon atoms in a volatile oleophilic medium which is substantially inert to base; adding to the mixture a stoichiometric excess of a metal base; adding to the mixture a gaseous acidic material under conditions to react with substantially all of the stoichiometric excess of the metal base; and adding the liquid ester medium to the resulting material.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: June 4, 1996
    Assignee: The Lubrizol Corporation
    Inventors: Jack L. Karn, Jody A. Kocsis, Willis P. Nichols