Lubricating oil containing despersant viscosity index improver

C - Chemistry – Metallurgy – 10 – M

Patent

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C10M 145/14 (2006.01) C08F 8/32 (2006.01) C08F 8/34 (2006.01) C10M 145/16 (2006.01) C10M 151/00 (2006.01) C10M 151/02 (2006.01)

Patent

CA 1290315

LUBRICATING OIL CONTAINING DISPERSANT VISCOSITY INDEX IMPROVER (78,560-F) ABSTRACT OF THE INVENTION Lubricating oils of improved properties contain a terpolymer of maleic anhydride, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.

543752

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