Water-based hydraulic fluid

Details Water-based hydraulic fluid Water-based hydraulic fluid

C - Chemistry, Metallurgy

10

M

253/133, 253/84

C10M 173/02 (2006.01)

Patent

CA 1076545

Abstract of the Disclosure The present invention relates to the use, as hydraulic fluids or metalworking lubricants, of composi- tions having water as a base and improved extreme pressure lubricating and wear-preventing characteristics. The hydraulic fluids of the invention are nonflammable and comprise a synergistic combination of a phosphate ester and a sulfur-containing compound. The compositions can be thickened, if desired, using a polyglycol type thickener and can contain additives known to the art such as defoamers and corrosion inhibitors. Stable concentrates comprising the phosphate ester and sulfur-containing compound can be prepared. -1-

291404

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