Fluoroelastomer-friendly crankcase and drivetrain lubricants...

Details Fluoroelastomer-friendly crankcase and drivetrain lubricants... Fluoroelastomer-friendly crankcase and drivetrain lubricants...

C - Chemistry, Metallurgy

10

M

C10M 159/12 (2006.01) C10M 133/56 (2006.01) C10M 139/00 (2006.01)

Patent

CA 2165973

Dispersancy and fluoroelastomer seal compatibility are achieved by use in the lubricant of a dispersing amount of a product made by reacting aminoguanidine or a basic salt thereof with a hydrocarbyl-substituted succinic acid or anhydride in a mole ratio of from about 0.4 to about 1.2 moles of the aminoguanidine or basic salt thereof per mole of the succinic acid or anhydride compound.

On peut conférer à un lubrifiant des propriétés de dispersibilité et de compatibilité avec les joints en fluoroélastomères en lui adjoignant une quantité dispersible d'un produit que l'on obtient en faisant réagir de l'aminoguanidine ou l'un de ses sels basiques avec de l'acide ou de l'anhydride succinique à substitution hydrocarbyle dans un rapport molaire allant d'env. 0,4 à env. 1,2 moles d'aminoguanidine ou de ses sels basiques par mole de composé d'acide ou d'anhydride succinique.

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