Lubricant composition with stabilized metal detergent...

C - Chemistry – Metallurgy – 10 – M

Patent

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253/22, 253/95

C10M 159/20 (2006.01) C10M 163/00 (2006.01) C10M 177/00 (2006.01)

Patent

CA 1159045

ABSTRACT OF THE DISCLOSURE Oils with metal sulfonate or sulfurized phenate detergents and friction reducing dicarboxylic esters are stabilized against haze or sediment formation by treat- ment of this oil solution of metal additive, prior to ester incorporation, with a phosphosulfurized polyiso- butylene or a polyisobutenyl succinic anhydride at 55° to 225°C for 2-30 hours.

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