Patents Represented by Attorney L. L. Priest
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Patent number: 4046702Abstract: A lubricating oil composition of improved rust-inhibitory capability contains a small amount of a sulfated alcohol having a molecular weight in the range of 500 to 5,000 which is prepared by reacting an aliphatic alcohol or a phenol with ethylene oxide or propylene oxide or mixtures thereof to form a polyoxyalkenylated alcohol which is treated with sodium hydride, potassium, sodium, sodium methoxide, potassium methoxide or potassium tert-butoxide and then is sulfated by treating with chlorosulfonic acid.Type: GrantFiled: February 5, 1976Date of Patent: September 6, 1977Assignee: Chevron Research CompanyInventor: Thomas V. Liston
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Patent number: 4044039Abstract: A process for the preparation of N-hydrocarbyl- substituted primary amines in the form of N-hydrocarbyl formimidate ester by the alkylation of hydrocyanic acid. The process comprises contacting a nonconjugated olefin with hydrocyanic acid and hydrogen fluoride in the presence of an alcohol or mercaptan.Type: GrantFiled: November 13, 1972Date of Patent: August 23, 1977Assignee: Chevron Research CompanyInventor: Louis DeVries
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Patent number: 4010106Abstract: Functional fluid lubricating oil compositions are provided which comprise (A) an oil of lubricating viscosity, and (B) an effective amount of each of the following: (1) an alkenyl succinimide, (2) a Group II metal salt of a dihydrocarbyl dithiophosphoric acid, (3) a frictional modifier, (4) a basic sulfurized alkaline earth metal alkyl phenate, and (5) a chlorinated olefin containing from about 15 to 50 carbon atoms, from 20 to 60% by weight chlorine, and having a boiling point of at least about 300.degree. F. Such lubricating compositions are useful as functional fluids in systems requiring fluid coupling, hydraulic fluid and/or lubrication of relatively moving parts. The lubricating compositions of the invention are particularly useful as the functional fluid in automatic transmissions, particularly in passenger automobiles.Type: GrantFiled: February 2, 1976Date of Patent: March 1, 1977Assignee: Chevron Research CompanyInventor: Kenneth Rothert
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Patent number: 4010107Abstract: Functional fluid lubricating oil compositions are provided which comprise (A) an oil of lubricating viscosity, and (B) an effective amount of each of the following: (1) an alkenyl succinimide, (2) a Group II metal salt of a dihydrocarbyl dithiophosphoric acid, (3) a friction modifier, (4) a Group II metal salt of a hydrocarbyl sulfonic acid, and (5) a chlorinated olefin containing from about 15 to 50 carbon atoms, from 20 to 60% by weight chlorine, and having a boiling point of at least about 300.degree. F. Such lubricating compositions are useful as functional fluids in systems requiring fluid coupling, hydraulic fluid and/or lubrication of relatively moving parts. The lubricating compositions of the invention are particularly useful as the functional fluid in automatic transmissions, particularly in passenger automobiles.Type: GrantFiled: February 2, 1976Date of Patent: March 1, 1977Assignee: Chevron Research CompanyInventor: Kenneth Rothert
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Patent number: 4005072Abstract: Novel compositions are prepared from the thermal decomposition product of azidoformate esters reacting with aliphatic hydrocarbon olefins to form aziridine carbamates, which are then reacted with a polyamine free of primary amino groups and having at least one secondary amino group. These compositions find use as detergents and dispersants in lubricating oils and fuels, and also as emulsifiers.Type: GrantFiled: April 25, 1975Date of Patent: January 25, 1977Assignee: Chevron Research CompanyInventor: Louis De Vries
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Patent number: 3997570Abstract: Alkenyl halolactone esters of monools and polyols are described. These materials are useful as lubricating oil detergency and/or dispersancy additives.Type: GrantFiled: May 19, 1975Date of Patent: December 14, 1976Assignee: Chevron Research CompanyInventors: Brian R. Kennedy, Warren Lowe
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Patent number: 3997454Abstract: An extreme-pressure lubricating composition is disclosed comprising an oil of lubricating viscosity having dispersed therein 1 to 60 weight percent of hydrated potassium borate microparticles having a boron-to-potassium ratio of about 2.5 to 4.5 and, optionally, from 0.01 to 5.0 weight percent of an antiwear agent selected from: (a) a zinc dihydrocarbyl dithiophosphate having from 4 to 20 carbons in each hydrocarbyl group; (b) a C.sub.1 to C.sub.20 ester, C.sub.1 to C.sub.20 amide, or C.sub.1 to C.sub.20 amine salt of a dihydrocarbyl dithiophosphoric acid having from 4 to 20 carbons in each hydrocarbyl group; or (c) mixtures thereof.Type: GrantFiled: June 4, 1975Date of Patent: December 14, 1976Assignee: Chevron Research CompanyInventor: John Howard Adams
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Patent number: 3992307Abstract: A lubricating composition is disclosed having improved multifunctional properties and comprises a major amount of an oil of lubricating viscosity and minor amounts of (I) an oil-soluble anti-oxidant selected from sterically hindered phenolic and thiophenolic compounds, aromatic amines and sulfurized organic compounds and (II) a bisphosphoramide formed by reacting (1) phosphorus oxychloride with (2) a polyamine having from 2 to 7 amine nitrogens, from 2 to 20 carbons and having at least 1 primary amino group, and (3) a monoamine having from 1 to 40 carbons.Type: GrantFiled: November 4, 1974Date of Patent: November 16, 1976Assignee: Chevron Research CompanyInventor: Bruce W. Hotten
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Patent number: 3958624Abstract: An improved anti-fouling additive for use in organic heat transfer fluids is disclosed. The additive comprises a combination of a barium overbased calcium sulfonate having a base ratio of at least 4 and a phenolic anti-oxidant.Type: GrantFiled: July 2, 1973Date of Patent: May 25, 1976Assignee: Chevron Research CompanyInventors: Robert L. Peeler, John M. King
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Patent number: 3954639Abstract: A lubricating oil composition of improved rust inhibitory capability contains a small amount of the sulfate of an oxyalkylenated alcohol or phenol having a molecular weight of about 500-5,000.Type: GrantFiled: March 14, 1974Date of Patent: May 4, 1976Assignee: Chevron Research CompanyInventor: Thomas V. Liston
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Patent number: 3933659Abstract: Functional fluid lubricating oil compositions are provided which comprise (A) a major amount of an oil of lubricating viscosity, and (B) an effective amount of each of the following: (1) an alkenyl succinimide, (2) a Group II metal salt of a dihydrocarbyl dithiophosphoric acid, (3) a compound selected from the group consisting of (a) fatty acid esters of dihydric and other polyhydric alcohols, and oil soluble oxyalkylated derivatives thereof, (b) fatty acid amides of low molecular weight amino acids, (c) N-fatty alkyl-N,N-diethanol amines, (d) N-fatty alkyl-N,N-di(ethoxyethanol) amines, (e) N-fatty alkyl-N,N-di-poly(ethoxy) ethanol amines, and (f) mixtures thereof, and (4) a basic sulfurized alkaline earth metal alkyl phenate. Such lubricating compositions are useful as functional fluids in systems requiring fluid coupling, hydraulic fluid and/or lubrication of relatively moving parts.Type: GrantFiled: July 11, 1974Date of Patent: January 20, 1976Assignee: Chevron Research CompanyInventors: Richard E. Lyle, Edward G. Foehr
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Patent number: 3933662Abstract: Certain polyalkoxylated compounds are combined with alkaline earth metal carbonates dispersed in a hydrocarbon medium to provide lubricating compositions of superior acid neutralizing capability and rust inhibition in internal combustion engines.Type: GrantFiled: July 11, 1974Date of Patent: January 20, 1976Assignee: Chevron Research CompanyInventor: Warren Lowe
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Patent number: 3932289Abstract: A process is disclosed for preparing overbased carbonated sulfurized magnesium alkylphenates. In the process, magnesium methoxide is carbonated and then contacted with an alkylphenol to form a normal magnesium phenate. The normal magnesium phenate is sulfurized and then contacted with an additional amount of carbonated magnesium methoxide to form the overbased sulfurized magnesium phenate.Type: GrantFiled: November 9, 1973Date of Patent: January 13, 1976Assignee: Chevron Research CompanyInventors: John M. King, Nicolaas Bakker