The Lubrizol Corporation

Richard J Vickerman

Daniel J Saccomando

Jason R Brown

Jody A Kocsis

Jonathan S Vilardo

Daniel E Barrer

Patrick E Mosier

Suzanne Patterson

Mark R Baker

William D Abraham

Craig D Tipton

John W Forsberg

Yanshi Zhang

Stuart L Bartley

Mohamed G Fahmy

James L Sumiejski

Gary A Garvin

Robert C Richardson

Shreyasi Lahiri

Elisa J Seddon

Gregory D Taylor

Suzanne M Patterson

A lubricant composition comprising (a) an oil of lubricating viscosity; (b) at least two nitrogen-containing materials, comprising (i) at least one amide of the formula RC(O)NRRand (ii) at least one tertiary amine being represented by the formula RRNRwhere Rand Rare alkyl groups of at least 6 carbon atoms and Ris a polyhydroxyl-containing alkyl group or a polyhydroxyl-containing alkoxyalkyl group; (c) a functionalized dispersant component, and (d) at least one diallyl phosphite, provides good lubricant performance for a continuously variable transmission.

Continuously variable transmission fluid with extended anti-shudder durability

The present invention provides a multipurpose overbased metal salt of the reaction product of a hydrocarbyl substituted amine with an itaconate, such as an N-substituted 4-carboxypyrrolidin-2-one, and methods of employing the same in lubricating compositions. Overbasing the N-substituted 4-carboxypyrrolidin-2-one can provide improved friction modifying performance to the compound as well as impart multi-functionality to the compound, i.e., the compound may function as a friction modifier as well as, for example, a detergent, anti-wear or extreme pressure agent and dispersant in lubricating compositions. The lubricating compositions containing the overbased N-substituted 4-carboxypyrrolidin-2-one are preferably intended to be employed in a method for lubricating a mechanical device, such as an automatic or manual transmission. However, it is envisioned that the compound can be employed in engine oil lubricants and any other type of functional fluid.

Overbased friction modifiers and methods of use thereof

The present invention provides a compound comprising the reaction product of a hydrcarbyl substituted amine with an itaconate, such as an N-substituted 4-carboxypyrrolidin-2-one, and methods of employing the same in lubricating compositions. The lubricating compositions containing the N-substituted 4-carboxypyrrolidin-2-one are preferably intended to be employed in a method for lubricating a mechanical device, such as an automatic or manual transmission. However, it is envisioned that the compound can be employed in engine oil lubricants and any other type of functional fluid.

Carboxylic pyrrolidinones and methods of use thereof

A composition is provided for use as a friction modifier for an automatic transmission, which comprises a condensation product of a hydroxypolycarbox-ylic acid, such as 2,3-di-hydroxybutanedioic acid or 2-hydroxybutanedioic acid, with an N,N-di(hydrocarbyl)alkylenediamine, where each hydrocarbyl group contains 1 to 22 carbon atoms, provided that the total number of carbon atoms in the two hydrocarbyl groups is at least about 9, and the alkylene group contains 2 to 4 carbon atoms.

Imides and bis-imides as friction modifiers in lubricants

A composition is provided for use as a friction modifier for an automatic transmission, comprising a long chain hydrocarbyl amine having one or two additional groups on one or two different amine nitrogen atom thereof of the structure &#x2014;R3-C(=0)X(R4)c. R3 is an alkylene group or a group comprising a group of 1-4 carbon atoms or a chain of 2 to 9 carbon atoms interrupted by one or two nitrogen or oxygen atoms within the chain; X is nitrogen or oxygen, and R4 is a long chain hydrocarbyl group, or H, or &#x2014;R3-NHR5. The compound does not contain a primary amino group.

Amine derivatives as friction modifiers in lubricants

A composition is provided suitable for use as a friction modifier for an automatic transmission, comprising an N-substituted oxalic acid bisamide or amide-ester containing at least two hydrocarbyl groups of 12 to 22 carbon atoms.

Oxalic acid bis-amides or amide-ester as friction modifiers in lubricants

A composition useful for lubricating an automatic transmission comprises an oil of lubricating viscosity and a hydrocarbyl amine with a hydrocarbyl group of 12 to 22 carbon atoms and having one or two additional groups of the structure &#x2014;R&#x2014;NHC(O)R, wherein Ris an alkylene group of 1 to 4 carbon atoms and Ris a hydrocarbyl group of 4 to 22 carbon atoms, or a nitrogen-containing heterocyclic group, or an aminoalkyl group.

Formulations using tartaric compounds of the present invention in a low sulfur, low ash and low phosphorous lubricant lower wear, and friction and improves fuel economy.

Tartaric acid derivatives as fuel economy improvers and antiwear agents in crankcase oils and preparations thereof

Tartaric acid derivatives in fuel compositions

Tartaric acid derivatives as fuel economy improvers and antiwear agents in crankcase oils and preparation thereof

The invention relates to a method to analyze the condition of a functional fluid comprising: Further an apparatus for analyzing functional fluids is disclosed in the form of a test medium consisting of an absorbent or nonabsorbent material which has been treated with a chemical indicator, marker substance or a developer or detector reagent upon which a sample of the fluid to be tested is placed. The components in the treated test medium react with components in the test fluid providing a visual indication, for example a color change, to judge the condition, the presence of a marker substance or another parameter of the fluid. The functional fluid may be a lubricant, fuel or other functional fluid of innumerable sources, including internal combustion engines, turbines, transmissions, differentials, pumps, metalworking operations, cooling systems, etc, and be either organic solvent or aqueous based.

Rapid analysis of functional fluids

A composition of a major amount of an oil of lubricating viscosity; a secondary or tertiary amine being represented by the formula RRNRwherein Rand Rare alkyl groups of at least 6 carbon atoms and Ris hydrogen, a hydrocarbyl group, a hydroxyl-containing alkyl group, or an amine-containing alkyl group; and a dispersant, provides high static coefficients of friction and a durable positive slope during oxidative and mechanical stressing, particularly as a friction component of an automatic transmission.

Secondary and tertiary amines as friction modifiers for automatic transmission fluids

Salt compositions are disclosed which comprise: (A) at least one salt moiety derived from: A) at least one salt moiety derived from (A)(I) at least one high-molecular weight polycarboxylic acylating agent, said acylating agent (A)(I) having at least one hydrocarbyl substituent having an average of from about 20 to about 500 carbon atoms, and (A)(II) ammonia, at least one amine, at least one alkali or alkaline earth metal, and/or at least one alkali or alkaline earth metal compound; (B) at least one salt moiety derived from (B)(I) at least one low-molecular weight polycarboxylic acylating agent, said acylating agent (B)(I) optionally having at least one hydrocarbyl substituent having an average of up to about 18 carbon atoms, and (B)(II) ammonia, at least one amine, at least one alkali or alkaline earth metal, and/or at least one alkali or alkaline earth metal compound; said components (A) and (B) being coupled together by (C) at least one compound having (i) two or more primary amino groups, (ii) two or more secondary amino groups, (iii) at least one primary amino group and at least one secondary amino group, (iv) at least two hydroxyl groups or (v) at least one primary or secondary amino group and at least one hydroxyl group; provided that the ratio of(B)(I) to (A)(I) is 2.5 or above. These salt compositions are useful as emulsifiers in oil-in-water emulsions useful as functional fluids.

Growing community of inventors

Stow, OH, United States of America

Richard J Vickerman