Two-cycle oil additive

Details Two-cycle oil additive Two-cycle oil additive

C - Chemistry, Metallurgy

10

M

C10M 165/00 (2006.01) C08F 8/32 (2006.01) C10M 133/52 (2006.01) C10M 133/56 (2006.01) C10M 149/22 (2006.01) F02B 61/04 (2006.01) F02B 75/02 (2006.01) F02B 77/04 (2006.01)

Patent

CA 2115047

The invention relates to a two-cycle oil additive, compositions and concentrates containing said two-cycle oil additive and methods of preparing and using the two-cycle oil additive which comprises the reaction product of (A) at least one high molecular weight acylating agent, (B) at least one polyalkylenpolyamine and (C) at least one monocarboxylic second acylating agent, wherein the molar ratio of the carboxylic acid acylating agent to the high molecular weight acylating agent is at least 3:1 and wherein the tertiary amine to total amine ratio of the reaction product is at least 0.7:1. The two-cycle oil additive of the invention are dispersant additives which will improve engine cleanliness and which will substantially avoid the formation of insoluble gel agglomerants at low temperatures which can adversely affect engine performance.

L'invention concerne un additif pour huiles deux temps, des compositions et des concentrés contenant ledit additif pour huiles deux temps ainsi que des procédés de préparation et d'utilisation de l'additif pour huiles deux-temps, comprenant le produit de réaction de (A) au moins un agent d'acylation de masse moléculaire élevée, (B) au moins une polyalkylènepolyamine, (C) au moins un second agent d'acylation monocarboxylique, le rapport molaire entre l'agent d'acylation d'acide carboxylique et l'agent d'acylation de masse moléculaire élevée est d'au moins 3:1, et le rapport entre les amines tertiaires et le total des amines du produit de réaction est d'au moins 0,7:1. L'additif pour huiles deux temps de l'invention est un additif dispersant améliorant la propreté du moteur et évitant la formation d'agglomérant sous forme de gel insoluble à basse température pouvant avoir un effet négatif sur le rendement des moteurs.

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