Lubricant composition containing amine phosphate

Details Lubricant composition containing amine phosphate Lubricant composition containing amine phosphate

C - Chemistry, Metallurgy

10

M

C10M 137/08 (2006.01)

Patent

CA 2169096

A lubricant oil composition having balanced antiwear/extreme pressure and stability properties while providing friction reduction which comprises: (1) a major amount of a lubricating oil basestock; and (2) a minor amount of an amine phosphate salt of formula (I), where R1 is C9 to C22, R2 and R3 are each independently C1 to C4 hydrocarbyl, R4 is C10 to C20 hydrocarbyl, and R5 is hydrogen or C10 to C20 hydrocarbyl; wherein the amine phosphate salt is soluble in the lubricant oil basestock at 25°C, is a liquid at 25°C, and the ratio of gram-atomic-equivalents of amine to phosphate in said salt is from about 1.0 to 1.2.

Huile de graissage aux propriétés équilibrées d'antiusure, d'extrême pression, de stabilité et de réduction du frottement comportant (1) une base majoritaire et (2) une quantité minoritaire d'amine-phosphate de formule (I) où R1 est C9 à C22, R2 et R3 sont chacun indépendamment hydrocarbyle C1 à C4, R4 est hydrocarbyle C10 à C20; et R5 est hydrogène ou hydrocarbyle C10 à C20. L'amine phosphate est soluble dans la base à 25 DEG C et liquide à 25 DEG C, et présente un rapport en équivalents gramme/atome de l'amine au phosphate compris entre 1,0 et 1,2.

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