Method of improving the frictional properties of functional...

Details Method of improving the frictional properties of functional... Method of improving the frictional properties of functional...

C - Chemistry, Metallurgy

10

M

C10M 135/10 (2006.01) C10M 129/24 (2006.01) C10M 159/12 (2006.01) C10M 159/24 (2006.01)

Patent

CA 2431027

A method of improving the brake and clutch capacity of a functional fluid comprising adding a friction-modifying amount of a polyalkenyl sulfonate to the functional fluid, wherein the polyalkenyl sulfonate is an alkali metal or alkaline earth metal salt of a polyalkylene sulfonic acid derived from a mixture of polyalkylenes comprising greater than about 20 mole percent alkyl vinylidene and 1,1-dialkyl isomers.

Une méthode pour améliorer la capacité de freinage et d'embrayage d'un fluide fonctionnel comprend l'ajout à ce fluide fonctionnel d'une quantité de polyalcénylsulfonate modifiant les propriétés de friction. Le polyalcénylsulfonate est un sel de métal alcalin ou alcalino-terreux d'un acide polyalkylènesulfonique dérivé d'un mélange de polyalkylènes comprenant plus d'environ 20 pour cent en mole d'alkylvinylidène et d'isomères 1,1-dialkyliques.

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