Patents Represented by Attorney, Agent or Law Firm David M. Shold
  • Patent number: 6265360
    Abstract: The present invention relates to a wax-containing liquid hydrocarbon fuel composition comprising (a) at least one wax-containing liquid hydrocarbon; and b) a transesterified acrylate polymer obtained by transesterifying a starting acrylate polymer with at least one higher alcohol, the transesterified acrylate polymer being present in an amount sufficient to modify the cold flow properties of the wax containing liquid hydrocarbon fuel.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 24, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Marvin B. DeTar, Richard M. Lange, John S. Manka
  • Patent number: 6251840
    Abstract: A lubricating/functional fluid composition which exhibits in use improved antiwear and antifoaming properties. The improvements result from use of 2,5-dimercapto-1,3,4-thiadiazole and derivatives thereof together with silicone and/or fluorosilicone antifoam agents.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: June 26, 2001
    Assignee: The Lubrizol Corporation
    Inventors: William C. Ward, Jr., Craig D. Tipton, Kathleen A. Murray
  • Patent number: 6242394
    Abstract: A lubricant composition suitable for fuel injected two-stroke cycle engines includes an oil of lubricating viscosity, an amount, sufficient to reduce or prevent piston scuffing, of a mixture of (A) at least one phenol selected from (A-1) an aminophenol and (A-2) a reaction product of a nitrophenol and an amino compound, and (B) at least one Mannich dispersant, amine dispersant, nitrogen-containing carboxylic dispersant, or ester dispersant. The composition further includes an amount, sufficient to reduce degradation of the lubricant composition upon exposure to oxygen or oxides of nitrogen, of a nitrogen-containing inhibitor, a hindered phenol inhibitor, or a sulfur-containing organic inhibitor.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: June 5, 2001
    Assignee: The Lubrizol Corporation
    Inventor: William B. Chamberlin, III
  • Patent number: 6207637
    Abstract: The reaction product of an alkylenediamine, each amino group thereof being a primary or secondary amino group; with at least two equivalents of an acrylamidoalkanesulfonic acid or a salt thereof, wherein each amine nitrogen atom of said alkylenediamine is reacted with a single molecule of the acrylamidoalkane sulfonic acid or salt thereof provides a useful surfactant or hydrotrope.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: March 27, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Philip W. Pike, Bryan A. Grisso, Richard W. Jahnke
  • Patent number: 6207624
    Abstract: Disclosed is a lubricating composition having a major amount of an oil of lubrication viscosity and a minor amount of (A) a nitrogen containing dispersant with a total base number of from 20 to 160 on an oil-free basis wherein the improvement comprises adding to said dispersant; (B) a sludge preventing/seal protecting additive of at least one aldehyde or epoxide or mixtures thereof.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: March 27, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Carl F. Stachew, William D. Abraham, James A. Supp, James R. Shanklin, Gordon David Lamb
  • Patent number: 6207839
    Abstract: A process for reacting olefinic compounds, certain carboxylic reactants, and aldehydes or ketones and products prepared by the process. The compositions of the process are useful as intermediates for the preparation of additives for lubricants and fuels.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: March 27, 2001
    Assignee: The Lubrizol Corporation
    Inventor: Mark R. Baker
  • Patent number: 6176893
    Abstract: Non-explosive water in oil emulsion fertilizer compositions comprise a discontinuous aqueous phase comprising at least one fertilizer component, a continuous organic phase, an emulsifying amount of an emulsifier composition comprising: the reaction product of an amine (C) characterized by the presence within its structure of at least one H—N group and an intermediate formed in the reaction of (A) at least one olefinic compound containing at least one group of the formula and (B) at least one carboxylic reactant selected from the group consisting of compounds of the formula R3C(O)(R4)nC(O)OR5   (III) wherein each of R3 and R5 is independently H or a hydrocarbyl group, R4 is a divalent hydrocarbylene group, and n is 0 or 1, and reactive sources thereof and optionally, from about 0.5 to about 2 moles, per mole of (B), of (D) at least one aldehyde or ketone. The fertilizer compositions provide for controlled release of the fertilizer components.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: January 23, 2001
    Assignee: The Lubrizol Corporation
    Inventor: James H. Bush
  • Patent number: 6172122
    Abstract: A stable emulsion composition is disclosed which comprises: (A) a metal overbased gelled composition, prepared by forming a mixture of (i) a carbonated overbased material in an oleophilic medium, which material contains a metal salt of at least one organic acid material containing at least 8 carbon atoms, and (ii) an alcohol or an alcohol-water mixture; (B) a surfactant; and (C) an aqueous liquid. The stable emulsion composition may further comprise at least one of a solute, a suspended solid or an oxidation inhibitor.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: January 9, 2001
    Assignee: The Lubrizol Corporation
    Inventors: Saurabh S. Lawate, William R. Sweet
  • Patent number: 6165235
    Abstract: Polyolefin substituted carboxylic acylating agents having reduced chlorine content of less than 2,000 ppm and a degree of succination of 1.1-2 have been made from polyisobutylene, chlorine and maleic anhydride. The acylating agents are further reacted with amines and/or alcohols to form dispersants having reduced chlorine content.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: December 26, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Christopher J. Kolp, Paul A. Lewis, Jeffry G. Dietz
  • Patent number: 6147036
    Abstract: A process for reacting certain carboxylic reactants with olefinic compounds then reacting the intermediate prepared thereby with ammonia, a hydrazine or an amine, and/or a reactive metal or reactive metal compound, products prepared thereby and, additive concentrates and lubricating oil and fuel compositions.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: November 14, 2000
    Assignee: The Lubrizol Corporation
    Inventor: Mark R. Baker
  • Patent number: 6136052
    Abstract: The present invention is directed to a fuel additive composition comprising at least two components:(A) a polyether alcohol of the formula ##STR1## wherein in formula (A-1), R is hydrogen or a hydrocarbyl group of 1 to about 30 carbon atoms; R.sup.1 is hydrogen or a hydrocarbyl group of 1 to 5 carbon atoms or mixtures thereof; and x is a number from about 4 to about 40.(B) a hydrocarbylphenol having 1-3 hydrocarbyl groups such that the total weight average molecular weight of the hydrocarbyl groups is about 250 to about 6000.In one embodiment the composition further comprises (C) a nitrogen-containing dispersant.The composition is useful as a fuel additive for reducing intake valve deposits and advantageously, does not contribute to an increase in combustion chamber deposits in port fuel injected internal combustion engines. The invention also relates to concentrates and fuel compositions containing the foregoing fuel additive composition and to a method for fueling an internal combustion engine.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: October 24, 2000
    Assignee: The Lubrizol Corporation
    Inventor: Daniel T. Daly
  • Patent number: 6133210
    Abstract: A homogeneous composition comprising (A) at least one polymeric carboxylic ester viscosity improver optionally containing nitrogen-containing groups, and (B) at least one hydrocarbyl group substituted ashless dispersant wherein the hydrocarbyl group has M.sub.n ranging from about 200 to about 800, and the weight ratio of (A):(B) ranges from about 3:1 to about 1:3, where in one embodiment, the polymeric carboxylic ester viscosity improver is (1) a polyacrylate ester copolymer, optionally containing nitrogen containing groups, containing from 2 to about 30 carbon atoms in the ester group and having M.sub.n ranging from about 10,000 to about 150,000, and in another embodiment, the polymeric carboxylic ester viscosity improver is (2) an esterified carboxy-containing interpolymer, having RSV ranging from about 0.05 to about 0.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: October 17, 2000
    Assignee: The Lubrizol Corporation
    Inventor: Craig D. Tipton
  • Patent number: 6121211
    Abstract: Disclosed is a lubricating composition having a major amount of an oil of lubrication viscosity and a minor amount of(A) at least one thiocarbamate wherein the improvement comprises adding to said thiocarbamate(B) a sludge preventing and seal protecting amount of at least one aldehyde or epoxide or mixtures thereof.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: September 19, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Carl F. Stachew, William D. Abraham, James A. Supp, James R. Shanklin, Gordon David Lamb
  • Patent number: 6117941
    Abstract: Compositions comprising reaction product of higher molecular weight olefinic reactants with carboxylic reactants of the formula R.sup.3 C(O)(R.sup.4).sub.n C(O)OR.sup.5 (IV) or the corresponding acetals, hemiacetals, ketals, and hemiketals thereof are useful as intermediates for further reaction in the preparation of lubricating oil additives.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: September 12, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Paul E. Adams, Richard M. Lange, Richard Yodice, Mark R. Baker, Jeffry G. Dietz
  • Patent number: 6114547
    Abstract: Compositions comprising hydroxy-substituted monolactones, a process for reacting olefinic compounds with certain carboxylic reactants and products prepared by the process. The compositions containing the hydroxy-substituted lactones and the products of the process are useful as intermediates for the preparation of additives for lubricants and fuels.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 5, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Mark R. Baker, Paul E. Adams, Jeffry G. Dietz
  • Patent number: 6111025
    Abstract: A block copolymer of a hydrophobic block of one or more hydrophobic monomers and a hydrophilic block of one or more hydrophilic monomers is prepared by polymerizing a hydrophobic monomer to prepare the hydrophobic block, using a free radical polymerization process using a stable free radical agent, preserving a stabilized active polymerization site on the hydrophobic block; adding a hydrophilic monomer to the stabilized active hydrophobic block; and further reacting the mixture to effect polymerization of the hydrophilic monomer. The polymerization of the hydrophilic monomer is conducted in an amidic solvent in which the hydrophobic block and the hydrophilic monomer are soluble.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: August 29, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Daniel C. Visger, Klaus-Werner Damm, Richard M. Lange, Barton J. Schober
  • Patent number: 6103673
    Abstract: A composition comprising of an oil of lubricating viscosity; a shear stable viscosity modifier; at least 0.1 percent by weight of an overbased metal salt; at least 0.1 percent by weight of at least one phosphorus compound; and 0.1 to 0.25 percent by weight of a combination of at least two friction modifiers provides an improved fluid for continuously variable transmissions. At least one of the friction modifiers is selected from the group consisting of zinc salts of fatty acids having at least 10 carbon atoms, hydrocarbyl imidazolines containing at least 12 carbon atoms in the hydrocarbyl group, and borated epoxides. The total amount of the friction modifiers is limited to those amounts which provide a metal-to-metal coefficient of friction of at least about 0.120 as measured at 110.degree. C. by ASTM-G-77.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: August 15, 2000
    Assignee: The Lubrizol Corporation
    Inventors: James L. Sumiejski, William C. Ward, Jr.
  • Patent number: 6100225
    Abstract: Aqueous metal working fluids containing a mist suppressing copolymer are disclosed. The copolymer includes hydrophobic and hydrophilic monomers. Optionally, the metal working fluid may be an oil-in-water emulsion.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: August 8, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Sanjay Kalhan, James T. Mann, Richard A. Denis
  • Patent number: 6100226
    Abstract: Improved grease compositions comprise a major amount of an oil based metal soap thickened base grease selected from the group consisting of simple metal soap thickened base grease, complex grease and failed complex grease, at least one sulfur and phosphorus containing composition, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and an aliphatic group substituted carboxylic acid or anhydride thereof, wherein the aliphatic group contains at least about 12 carbon atoms in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 15.degree. C., the phosphorus and sulfur compound being described in detail herein.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: August 8, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Edward J. Konzman, Gary W. Wiggins
  • Patent number: 6090896
    Abstract: A surfactant which is the reaction product of a hydrocarbyl-substituted succinic anhydride or a reactive equivalent thereof with at least one water-dispersible amine-terminated poly(oxyalkylene), is effective for use in soil remediation.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: July 18, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Richard W. Jahnke, Bryan A. Grisso