Improved hydraulic oil

Details Improved hydraulic oil Improved hydraulic oil

C - Chemistry, Metallurgy

10

M

C10M 161/00 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2154365

An unproved anti-wear, high pressure hydraulic oil which contains essentially no zinc or phosphorous is described. The hydraulic oil protects against corrosion and oxidation as well as provides anti-wear, and-weld, and demulsibility properties. This improved hydraulic oil contains (1) petroleum hydrocarbon oil; (2) esters of dibasic and monobasic acids; (3) butylated phenol; (4) phenol; (5) sulfurized fatty oil; (6) fatty acid; and (7) sulfur scavenger. This hydraulic oil has a reduced tendency towards sludge formation and has, therefore, an increased lifetime. This hydraulic oil can be used in applications requiring good boundary lubrication and minimal sludge formation. It is especially useful in high pressure hydraulic systems and pumps.

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