Hydrocarbon fluids with improved pour point

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 129/50 (2006.01) C10M 129/54 (2006.01) C10M 129/68 (2006.01) C10M 129/76 (2006.01)

Patent

CA 2693557

The addition of alkyl salicylic acids and esters represented by Formula I (I) where R1= H or C12 to C22 linear alkyl group; R2 = H or linear C12to C22 carbonyl group; and R3 = linear C12 to C22 alkyl group reduces the pour point of a hydrocarbon base oil. Thus, both a method for reducing the pour point of hydrocarbon oils and lubricating composition containing pour point reducing salicylates are provided. The hydrocarbon base oil in such method and composition preferably is a Group III base oil.

L'addition d'acides et esters d'acides alkyl salicyliques représentés par la Formule I (I) où R1= H ou un groupe alkyle linéaire en C12 à C22 ; R2 = H ou un groupe carbonyle en C12 àC22 linéaire; et R3 = groupe alkyle en C12 à C22, linéaire, permet de réduire le point d'écoulement d'une huile de base hydrocarbonée. Ainsi, l'invention porte à la fois sur un procédé pour réduire le point d'écoulement d'huiles hydrocarbonées et sur une composition lubrifiante contenant des salicylates réduisant le point d'écoulement. L'huile de base hydrocarbonée dans un tel procédé et une telle composition est, de préférence, une huile de base du Groupe III.

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