Aqueous functional fluids with antioxidants

Details Aqueous functional fluids with antioxidants Aqueous functional fluids with antioxidants

C - Chemistry, Metallurgy

10

M

C10M 173/02 (2006.01) C10M 119/18 (2006.01) C10M 145/38 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2466737

The present invention relates to an aqueous functional fluid comprising an antioxidant of the hindered phenol type and a water-soluble polyalkylene glycol. The aqueous functional fluids are especially suitable for use as hydraulic or metal working fluids. The present invention also relates to the use of the aqueous functional fluid for improving the performance properties of hydraulic or metal working fluids.

L'invention se rapporte à un fluide fonctionnel aqueux comprenant un antioxydant du type phénol encombré et un glycol polyalkylène soluble dans l'eau. Les fluides fonctionnels aqueux sont spécialement appropriés pour utiliser en tant que fluides de travail des métaux ou en tant que fluides hydrauliques. L'invention se rapporte également à l'utilisation d'un fluide fonctionnel aqueux pour améliorer les propriétés de performance des fluides hydrauliques ou des fluides de travail des métaux.

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