The Lubrizol Corporation

James J Schwind

Craig D Tipton

James P Roski

Stephen A Di Biase

William D Abraham

James N Vinci

Christopher L Friend

Curtis R Scharf

Jerry L Rutter

Stephen A DiBiase

Willis P Nichols

Betsy J Butke

Claire L Hollingshurst

Elisa J Seddon

Ross L Beebe

Victor A Gober

S Q Abbas Rizvi

Christopher Friend

A lubricant composition comprising an oil of lubricating viscosity and an oil-soluble branched-chain hydrocarbyl-substituted arenesulfonic acid salt, wherein the arenesulfonic moiety has at least one hydrocarbyl substituent which is a highly branched group as defined by having a Chi(0)/Shadow XY ratio greater than about 0.180, exhibits good dynamic frictional performance.

Highly branched sulfonates for drive-line applications

This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, (A) at least one organic polysulfide comprising at least about 90% dihydrocarbyl trisulfide, from about 0.1% up to about 8% dihydrocarbyl disulfide, and less than about 5% dihydrocarbyl higher polysulfides, and (B) at least one overbased metal composition, at least one phosphorus or boron compound, or mixtures of two or more thereof. The invention also relates to concentrates and greases containing the above combination. The invention also relates to methods of making the organic polysulfide.

Lubricating compositions, concentrates, and greases containing the combination of an organic polysulfide and an overbased composition or a phosphorus or boron compound

The objectionable odors generated from lubricants is minimized by including in said lubricant a thiazole compound and grape odor mask.

Elimination of odors from lubricants by use of a combination of thiazoles and odor masks

A borate ester represented by one of the following formulae:

Organophosphoryl borates and lubricants and aqueous fluids containing the same

Gear oil compositions are described which comprise a lubricating base oil having dissolved therein:

Gear lubricant composition

This invention relates to lubricating compositions comprising:

Universal driveline fluid

This invention is directed to lubricating oil and functional fluid compositions having improved high temperature stability and which contain at least one phosphorus-containing composition and at least one oil-soluble nitrogen-containing composition. More particularly, the lubricating and functional fluid compositions of the present invention comprise (A) a major amount of an oil of lubricating viscosity, and a minor amount of (B-1) at least one soluble tertiary aliphatic primary amine salt of a substituted phosphoric acid composition characterized by the formula ##STR1## wherein R.sup.1 is hydrogen or a hydrocarbyl group, R.sup.2 is a hydrocarbyl group, and both X groups are either O or S, and (C) at least one soluble nitrogen-containing composition prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid producing compound, of an amine containing at least one hydrogen attached to a nitrogen atom. Preferably, the amine salts of the phosphoric acids utilized in the lubricating compositions of the present invention are derived from primary amines, and the soluble nitrogen-containing compositions (C) also contain boron. The lubricating compositions of the present invention are particularly useful in gear applications requiring high thermal stability such as from about 160.degree. C. with intermittent operation up to about 200.degree. C.

Phosphorus-containing lubricant and functional fluid compositions

A lubricating composition is described which comprises a mixture of (A) a major amount of an oil of lubricating viscosity, (B) a dispersant effective amount of at least one ashless dispersant, and (C) a minor, effective amount of at least one demulsifier characterized by the formula ##STR1## wherein R is a hydrocarbyl group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each independently H or hydrocarbyl groups, and X is O or NR' wherein R' is hydrogen or a hydrocarbyl group. In one embodiment, the ashless dispersant is a carboxylic dispersant, and the demulsifier is a derivative of imidazoline. The lubricating compositions of the invention are characterized as having improved dispersancy, demulsibility, rust-inhibition and anti-wear properties.

Lubricant and functional fluid compositions exhibiting improved

Mixtures of partial fatty acid esters of polyhydric alcohols and sulfurized compositions. Compositions comprising these mixtures are useful as additives for a wide variety of lubricants.

Mixtures of partial fatty acid esters of polyhydric alcohols and

Improved automatic transmission fluids (ATF's) and gear lubricant compositions comprising a low concentration of an oil-soluble transistion metal compound are provided. The transition metal compound ameliorates low temperature thickening in ATF's and high temperature thickening in gear lubricants.

Drive train fluids comprising oil-soluble transition metal compounds

A lubricant mixture suitable for a manual transmission fluid comprising:

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Chardon, OH, United States of America

James J Schwind