Amine derivatives as friction modifiers in lubricants

Details Amine derivatives as friction modifiers in lubricants Amine derivatives as friction modifiers in lubricants

C - Chemistry, Metallurgy

10

M

C10M 133/06 (2006.01) C10M 133/10 (2006.01) C10M 133/16 (2006.01)

Patent

CA 2752541

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 -R3-NHC(O)R4, wherein R3 is an alkylene group of 1 to 4 carbon atoms and R4 is a hydrocarbyl group of 4 to 22 carbon atoms, or a nitrogen-containing heterocyclic group, or an aminoalkyl group. The hydrocarbyl amine does not contain a primary amino group.

La présente invention concerne une composition utile pour lubrifier une transmission automatique comprenant une huile de viscosité lubrifiante et une hydrocarbylamine avec un groupe hydrocarbyle de 12 à 22 atomes de carbone et ayant un ou deux groupes additionnels de structure -R3-NHC(O)R4, dans laquelle R3 est un groupe alkylène de 1 à 4 atomes de carbone et R4 est un groupe hydrocarbyle de 4 à 22 atomes de carbone, ou un groupe hétérocyclique contenant de l'azote, ou un groupe aminoalkyle. L'hydrocarbylamine ne contient pas de groupe amino primaire.

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