Texaco Inc.

Benjamin H Zoleski

Rodney L Sung

William P Cullen

Ronald L O'Rourke

William M Sweeney

Wheeler C Crawford

Stephen A Levine

Sheldon Herbstman

John M Larkin

Harry Chafetz

Mahmoud S Kablaoui

Peter Dorn

Walter D Foucher, Jr

Frank J Gaetani

Rodney Lu-Dai Sung

Gordon R Schierberg

Elmer E Schallenberg

Gayle P Hebert

Gayle P Herbert

Robert M Scarberry

Herbert C Morris

An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product of a dibasic acid anhydride, a polyoxyalkylene diamine, and a heterocyclic azole.

Oxidation and corrosion resistant diesel engine lubricant

This invention provides a gear oil lubricant composition which comprises

Gear oil lubricant additive composition

An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product of an N-acyl sarcosine and a substituted or unsubstituted heterocyclic azole.

An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product obtained by first reacting a hydroxybenzoic acid and a polyoxyalkylene polyol to form an ester, and thereafter reacting the ester with an aldehyde or ketone and a substituted or unsubstituted heterocyclic azole to produce the final reaction product.

A railway diesel crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of alpha-hydroxy omega hydroxy-poly (oxyethylene) poly (oxypropylene) poly (oxyethylene) block copolymer, dibasic acid anhydride and N-alkyl alkylene diamine.

Oxidation and corrosion inhibiting additives for railway diesel

A haze, oxidation, and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, contains 0.1-5.0 weight percent of a reaction product additive. The reaction product additive is produced by first reacting substantially equimolar amounts of an anhydride compound which is either a dibasic acid anhydride or isatoic anhydride and a hydrocarbon-substituted mono primary amine or ether amine at a temperature range of 50.degree. C.-150.degree. C. to produce an intermediate reaction product. The intermediate reaction product is thereafter further reacted at an elevated temperature with a substantially equimolar amount of a heterocyclic azole or polyalkylene polyamine compound to form the final reaction product.

Haze, oxidation, and corrosion resistant diesel engine lubricant

The friction modifying property of gasoline crankcase oil is improved by the incorporation therein of a friction modifier of a dialkoxylated alkyl polyoxyalkyl amine ##STR1## wherein R is a (C.sub.1 -C.sub.20) hydrocarbyl radical, R' and R' are divalent (C.sub.1 -C.sub.10) alkylene groups, a is an integer of about 1 to about 10 and x+y is a value of about 1 to about 20.

Gasoline crankcase lubricant

A crankcase lubricating oil composition for slow speed marine diesel engines characterized by having a Total Base Number from about 3 to 10 containing a mineral lubricating oil, an overbased calcium alkylphenolate, a zinc dihydrocarbyl dithiophosphate, an alkylated diphenylamine, and a rust-inhibiting amount of at least one dialkoxylated alkylpolyoxyalkyl primary amine.

Marine crankcase lubricant

A crankcase lubricating oil composition for railway diesel engines, containing a mineral lubricating oil, an overbased calcium alkylphenolate and an alkyaryl sulfonate oxidation and corrosion inhibiting amount of a reaction product of polyoxyisopropylene diamine, dibasic acid anhydride and polyalkylene polyamine.

Railway diesel crankcase lubricant

A marine diesel crankcase lubricant characterized by decreased haze and increased corrosion inhibition contains an additive typified by ##STR1##

Crankcase lubricant

A wear-resistant aircraft engine oil contains a reaction product of didodecyl phosphate and ##STR1## wherein x+y+z is 5.3.

Wear-resistant aircraft engine lubricating oil

A lubricant composition includes a mineral lubricanting lubricant composition and a friction modifying amount of a reaction product of an amine and maleic anhydride represented by the formula: ##STR1## in which X and X' are either: ##STR2## in which R and R' can be any hydrocarbon radicals and the total number of carbon atoms in R plus R' varies from about 6 to about 30, and wherein the nitrogen is bound to a secondary carbon atom, or wherein R is a hydrogen atom and R' is a branched hydrocarbon radical having from about 6 to 30 carbon atoms, or ##STR3## in which Y varies from 2 to 6, and in which R' is a hydrocarbon radical having from about 6 to 30 carbon atoms, and R'' is hydrogen or a methyl radical. The lubricant composition finds use in various internal combustion engines including slow and medium speed diesel engines and as a lubricant in the upper cylinder of a slow speed marine diesel engine.

Lubricant oil composition containing a friction modifier

The spreadability of marine diesel cylinder oils is improved by the incorporation therein of a spreadability improving amount of a polyalkoxylated phenoxy compound having the formula: ##STR1## wherein R is an aliphatic hydrocarbyl group having from 5 to 70 carbon atoms and n ranges from 14 to 30.

Marine diesel cylinder oils containing polyalkoxylated phenoxy compounds

Novel polyoxyalkylene polyamine triazole or benzotriazole complexes for diesel oils used in medium speed diesel engines.

Polyoxyalkylene polyamine triazole complexes

The ability of marine diesel engine cylinder lubricants is improved by the incorporation therein of a spreadability improving amount of at least one polyoxyethylene ester of the formula: ##STR1## wherein n ranges from 18 to 22 and R is an alkyl group having 11 to 17 carbon atoms in the chain.

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Beacon, NY, United States of America

Benjamin H Zoleski