Lubricant containing potassium borate

Details Lubricant containing potassium borate Lubricant containing potassium borate

C - Chemistry, Metallurgy

01

B

253/24, 23/4

C01B 35/12 (2006.01) C10M 141/10 (2006.01)

Patent

CA 1049226

ABSTRACT OF THE DISCLOSURE LUBRICANT CONTAINING POTASSIUM BORATE An extreme-pressure lubricating composition is disclosed comprising an oil of lubricating viscosity having dispersed therein 1 to 60 weight percent of hydrated pot- assium borate microparticles having a boron-to-potassium ration of about 2.5 to 4.5 and, optionally, from 0.01 to 5.0 weight percent of an antiwear agent selected from: (a) a zinc dihydrocarbyl dithiophosphate having from 4 to 20 carbons in each hydrocarbyl group; (b) a C1 to C20 ester, C1 to C20 amide, or C1 to C20 amine salt of a dihydrocarbyl dithiophosphoric acid having from 4 to 20 carbons in each hydrocarbyl group; or (c) mixtures thereof.

229919

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