Patents Represented by Attorney Joseph P. Foley
  • Patent number: 8349777
    Abstract: Disclosed are lubricating oil compositions comprising a major amount of an oil of lubricating viscosity; and from 0.05 to 10 weight % based upon the total lubricating oil composition of a 1,3-dioxolane-4-methanol compound of the formula I: wherein: R1 and R2 are each independently hydrogen, alkyl or alkenyl, wherein the sum of carbon atoms for R1 and R2 is 6 carbon atoms or less.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: January 8, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: Patrick J. McDougall
  • Patent number: 8343901
    Abstract: Multi-functional additives which impart improved antioxidancy to lubricating oil compositions and frictional properties resulting in improved fuel economy in an internal combustion engine are disclosed. More particularly disclosed are lubricating oil compositions for internal combustion engines comprising a) a major amount of an oil of lubricating viscosity; and b) a minor amount of an oil soluble hydroxylated amine salt of a hindered phenolic acid, said salt having the general formula I: wherein A and Q are each independently C2-C6 alkylene group; R is methyl, alkyl or alkenyl group having C2-C24 carbon atoms; Y is hydrogen, C1-C6 alkyl group or A-OH; x is an integer of 1 or 2; and z is an integer of 0 or 1.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: January 1, 2013
    Assignee: Chevron Oronite Company LLC
    Inventors: Yat Fan Suen, John Ward, Trevor Miller
  • Patent number: 8334242
    Abstract: Multi-functional additives which impart improved antioxidancy to lubricating oil compositions and frictional properties resulting in improved fuel economy in an internal combustion engine are disclosed. More particularly disclosed is a boron containing salt of an oil soluble hydroxylated amine and a hindered phenolic acid product prepared by: a) reacting an oil soluble hydroxylated amine of the general formula II: wherein A at each occurrence is each independently C2-C6 alkylene group; R is methyl or an alkyl or alkenyl group having C2-C24 carbon atoms; Y is hydrogen, C1-C6 alkyl group or A-OH; x is an integer of 1 or 2; and z is an integer of 0 or 1; with a boron containing compound under reactive conditions; and b) mixing the reaction product of step a) with a hindered phenolic acid.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 18, 2012
    Assignee: Chevron Oronite Company LLC
    Inventors: Yat Fan Suen, John Ward, Trevor Miller
  • Patent number: 8268761
    Abstract: Disclosed are aminomethyl-substituted imidazole compounds and their use as friction modifiers in lubricating oils. Also disclosed is a process for preparing the aminomethyl-substituted imidazole compounds. A further aspect is directed to a lubricating oil composition and a lubricating oil additive concentrate having the aminomethyl-substituted imidazole compounds of the present invention.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 18, 2012
    Assignee: Chevron Oronite Company LLC
    Inventors: Yat Fan Suen, Miranda L. Lackie, Farzan Parsinejad
  • Patent number: 8183189
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions derived from a process for preparing a sulfurized oil soluble molybdenum complex having reduced active sulfur comprising: reacting an acidic molybdenum compound with an amide derived from a carboxylic acid component an polyamine component in a ratio from 2:1 to 1:1; there after sulfurizing to provide a sulfurized oil soluble molybdenum which is subsequently treated with at least one compound capable of reacting with the active sulfur of step b).
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 22, 2012
    Assignee: Chevron Oronite Company LLC
    Inventors: Qunlai Chen, Man Hon Tsang, Gaurav Bhalla, William R. Ruhe, Jr.
  • Patent number: 8003583
    Abstract: Benzo[b]perhydroheterocyclic arylamine compounds have shown to be particularly useful as stabilizers. The compounds may serve as antioxidants, antiozoants, heat stabilizers and ultraviolet light stabilizers and such compounds are oil soluble, thus particularly suited for use as an antioxidant in a lubricating oil composition.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: August 23, 2011
    Assignee: Chevron Oronite Company LLC
    Inventors: Richard E. Cherpeck, Carrie Y. Chan
  • Patent number: 7752895
    Abstract: A method for determining the viscosity and relative change of viscosity of a fluid over plural shear rates caused by a decreasing or increasing pressure differential resulting from fluid flow to a defined chamber in a capillary system. The flow of liquid through the capillary restriction, the pressure variation rate and known dimensions of the system can be used typically by a processor to determine a rheological property of a fluid.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 13, 2010
    Assignee: Chevron Oronite S.A.
    Inventor: Yves Lesieur
  • Patent number: 7683017
    Abstract: Disclosed is a lubricating oil composition containing an oil of lubricating viscosity and a particularly effective mixture of a nitro-substituted diphenylamine and a diarylamine which together provide superior oxidation inhibition.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: March 23, 2010
    Assignee: Chevron Oronite Company LLC
    Inventors: Richard E. Cherpeck, Carrie Y. Chan
  • Patent number: 7576161
    Abstract: Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with an N-substituted pyrrole to thereby functionalize the N-substituted pyrrole at the terminal reactive polymer chain end(s). Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: August 18, 2009
    Assignees: Chevron Oronite Company LLC, The University of Southern Mississippi
    Inventors: Casey D. Stokes, Robson F. Storey, James J. Harrison
  • Patent number: 7501476
    Abstract: Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with a suitable azole quenching agent and substituted derivatives thereof.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: March 10, 2009
    Assignees: Chevron Oronite Company, LLC, The University of Southern Mississippi
    Inventors: Casey D. Stokes, Robson F. Storey
  • Patent number: 7501386
    Abstract: Disclosed is a lubricating oil composition containing an oil of lubricating viscosity and a particularly effective mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine which together provide superior oxidation inhibition.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 10, 2009
    Assignee: Chevron Oronite Company, LLC
    Inventors: Richard E. Cherpeck, Carrie Y. Chan
  • Patent number: 7494961
    Abstract: A process for preparing an oligomeric phenolic detergent composition comprising contacting an oil soluble alkylphenol with an alkaline earth metal base, an alpha amino acid, and a C1 to C6 aldehyde, in the in the presence of a C2 to C6 alkylene glycol and a C2 to C4 carboxylic acid; and reacting under reactive conditions at a temperature of from 150° C. to 225° C. The oligomeric phenolic detergent product can be employed in a lubricating oil.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: February 24, 2009
    Assignee: Chevron Oronite Company LLC
    Inventors: Vernon R. Small, Jesse Meyer
  • Patent number: 7414013
    Abstract: Sulfurized olefin compositions and compounds of the formula: wherein R1 is hydrogen or methyl; X is sulfur or oxygen; m is an integer from 1 to 9; and n is 0 or 1, and when n is 0 then R1 is methyl, and when n is 1 then R1 is hydrogen are disclosed. The resulting compounds are particularly the polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: August 19, 2008
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Frank Plavac
  • Patent number: 7285518
    Abstract: Dibenzo[b]perhydroheterocyclic amine compounds have shown to be particularly useful as stabilizers. The compounds may serve as antioxidants, antiozoants, heat stabilizers and ultraviolet light stabilizers and such compounds are oil soluble, thus particularly suited for use as an antioxidant in a lubricating oil composition.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: October 23, 2007
    Assignee: Chevron Oronite Company LLC
    Inventors: Richard E. Cherpeck, Carrie Y. Chan
  • Patent number: 6969744
    Abstract: Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with an N-substituted pyrrole to thereby functionalize the N-substituted pyrrole at the terminal reactive polymer chain end(s). Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: November 29, 2005
    Assignees: University of Southern Mississippi, Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, Robson F. Storey, James J. Harrison
  • Patent number: 6958409
    Abstract: A process for the manufacture of a low sediment overbased metal dithiophosphate composition is disclosed. The process uses delayed addition of a C1 to C5 mono-carboxylic acid promoter during the neutralization of a primary dialkyl dithiophosphoric acid. The process results in reducing crude sediment whereby the resulting overbased metal dithiophosphate may need not undergo additional filtration steps prior to its intended use.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: October 25, 2005
    Assignee: Chevron Oronite Company LLC
    Inventor: William R. Ruhe, Jr.
  • Patent number: 6884855
    Abstract: Sulfurized olefin compositions and components are prepared from sulfurizing high methylvinylidene polyisobutylene(s) having at least 25% methylvinylidene and a number average molecular weight in the range of about 120 to about 600, at suitable temperatures and pressures. The resulting sulfurized reaction product and polyisobutyl-1,2-dithiole-4-cyclopentene-3-thione compounds and derivatives are useful in lubricating oils.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: April 26, 2005
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Frank Plavac
  • Patent number: 6790813
    Abstract: Oil compositions and formulated crankcase engine oils demonstrate improved fuel economy performance when comprising an overbased sulfonate detergent having a total base number greater than about 450 and which contain at least one other additive which includes a succinimide type dispersant. Methods for improving fuel economy employing such high TBN sulfonates and engine oil formulations and concentrates containing such are disclosed.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: September 14, 2004
    Assignee: Chevron Oronite Company LLC
    Inventor: Alexander B. Boffa
  • Patent number: 6737387
    Abstract: Disclosed are dispersed hydrated potassium borate compositions, as well as additive packages and finished oil compositions comprising the same. The dispersed hydrated potassium borate compositions of the invention exhibit low turbidity and the finished oil compositions exhibit improved wear performance under high temperature conditions.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: May 18, 2004
    Assignee: Chevron Oronite Company LLC
    Inventors: James J. Harrison, Kenneth D. Nelson, Juan A. Buitrago
  • Patent number: 6696393
    Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorus content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a complex of a molybdenum/nitrogen containing compound and at least one phosphorus-containing compound wherein the total phosphorus employed in the composition is no more than about 0.06 weight percent based on the total weight of the composition.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: February 24, 2004
    Assignee: Chevron Oronite Company LLC
    Inventor: Alexander B. Boffa