Exxon Research and Engineering Company

John W Frankenfeld

Alan Roy Katritzky

Morton Beltzer

Nicholas Feldman

Manuel A Francisco

Sergiu M Gorun

Keith U Ingold

Robert L Bruncati

Donald L Wright

Adducts of benzotriazole or substituted benzotriazole with formaldehyde or with thiadiazole or substituted thiadiazole are useful as ashless anti-wear/anti-friction/anti-oxidant additives for lubricants. Formulated lubricants containing such adducts exhibit compound levels of anti-wear, anti-friction and oxidation stability performance.

Ashless benzotriazole-thiadiazol compounds as anti-oxidant, anti-wear

The addition of certain alkylamine substituted benzotriazole compounds to a lubricant imparts improved oxidation stability and rust inhibition to the lubricant.

Alkylamine substituted benzotriazole containing lubricants having

The addition of certain aromatic substituted benzotriazole compounds to a lubricant imparts improved oxidation stability to the lubricant. The oxidation stability is particularly enhanced when the substituents on the substituted aromatic ring are strong electron donors.

Aromatic substituted benzotriazole containing lubricants having improved

Bis imidazole ethers have been found to be effective metal deactivators. Thus, one aspect of the present invention comprises novel bis imidazole ethers of the formula: ##STR1## in which R is a normal alkyl group having from 1 to 12 carbon atoms and R' is a normal alkyl group having from 1 to carbon atoms, an alkylaryl group having from 7 to 20 carbon atoms, or an aryl group of 6 to 10 carbon atoms. In another aspect of the present invention, an improved lubricating oil is provided comprising a base lubricating oil and the bis imidazole ethers of this invention.

Bis imidazole ethers as metal deactivators

A pour depressant for hydrocarbon oils, such as hydrotreated shale oil, and a method for depressing the pour point of hydrocarbon oil utilizing the pour depressant are disclosed. The depressant comprises the combination of:

Pour depressant

A method for improving the storage stability of shale oil liquids by extracting or contacting the shale oil with a base solution having a pH of at least about 7.5 to inhibit the formation or reduce the level of sediment and gum which can form in said shale oil.

Method for improving the stability of shale oil

Cosmetics and personal care products are protected from spoilage due to microbial attack by the addition of certain poly alcohols and their esters, such as 1,3-diols and the mono- or diesters of such diols.

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Hoboken, NJ, United States of America

John W Frankenfeld