Synergistically-thickened hydraulic fluid utilising...

Details Synergistically-thickened hydraulic fluid utilising... Synergistically-thickened hydraulic fluid utilising...

C - Chemistry, Metallurgy

10

M

253/136, 253/70,

C10M 3/04 (1980.01) C10M 3/22 (1980.01) C10M 3/40 (1980.01) C10M 3/42 (1980.01)

Patent

CA 1163041

Abstract of the Disclosure Water-based hydraulic fluids and metalworking lubricants are disclosed which are thickened with a polyether polyol having a molecular weight of about 1000 to about 25,000 modified with an alpha-olefin epoxide having about 12 to about 18 carbon atoms. Unexpectedly, synergistic thickening results from a combination of said polyether polyol with the com- ponents of the water-based hydraulic fluid or metalworking lubricant. The particularly effective components of the hydraulic fluid or metalworking lubricant are the phosphate ester and water-soluble amine corrosion inhibitor components. The hydraulic fluid and metalworking fluids of the invention also contain a water-soluble polyoxyethylated ester of an aliphatic acid and a monohydric or polyhydric aliphatic alcohol, either one or both said acid and said alcohol being polyoxyethylated, a sulfurized molybdenum or antimony compound and a metal deactivator as well as other adjuvants conven- tional in this art.

362905

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