Aqueous fluids

Details Aqueous fluids Aqueous fluids

C - Chemistry, Metallurgy

10

M

253/105, 253/133

C10M 173/00 (2006.01) C07C 59/255 (2006.01) C07C 59/265 (2006.01) C07C 59/285 (2006.01) C07C 215/08 (2006.01) C10M 129/36 (2006.01) C10M 133/08 (2006.01)

Patent

CA 1290316

ABSTRACT The use of a water-soluble hydroxyl di- or tri- carboxylic acid, generally in combination with an alkanolamine in an oil water fluid especially metal working or hydraulic fluids results in a fluid having excellent hard water compat- ibility, low foaming tendency in soft water and a good bio- stability; other additives such as emulsifiers, copper passivators and the like are generally present.

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