Water-based hydraulic fluids incorporating a polyether as a...

Details Water-based hydraulic fluids incorporating a polyether as a... Water-based hydraulic fluids incorporating a polyether as a...

C - Chemistry, Metallurgy

10

M

253/136

C10M 143/00 (2006.01) C08G 65/26 (2006.01) C10M 173/02 (2006.01)

Patent

CA 1192540

WATER-BASED HYDRAULIC FLUIDS INCORPORATING A POLYETHER AS A LUBRICANT AND CORROSION INHIBITOR Abstract of the Disclosure In accordance with the instant invention, a water- based hydraulic fluid, having improved lubricity, anti-wear and corrosion inhibition properties can be obtained by blending a heteric or block polyoxyalkylene copolymer nonionic surface-active agent with a conventional water- based hydraulic fluid composition. These heteric or block polyoxyalkylene copolymers are the reaction product of a linear or branched active hydrogen containing compound having from 1 to 6 carbon atoms with alkylene oxides having from 3 to 6 carbon atoms and an oxygen/carbon atom ratio of less than 0.4. Alternatively but advantageously, said copolymers may also bereacted with alkylene oxide having an oxygen/carbon atom ratio of greater than 0.4.

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