Lubricating oil containing dispersant viscosity index improver

Details Lubricating oil containing dispersant viscosity index improver Lubricating oil containing dispersant viscosity index improver

1986-12-24

1988-08-30

Bleutge, John C.

Compositions

Electrolytes for electrical devices

252 486, 252 482, 252 515R, 252 515A, 524549, C10M14514

Patent

active

047675535

ABSTRACT:
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.

REFERENCES:
patent: 3467668 (1969-09-01), Gruber et al.
patent: 4140643 (1979-02-01), Davis
patent: 4170561 (1979-09-01), Chapelet et al.
patent: 4200559 (1980-04-01), Peterleen et al.
patent: 4221886 (1980-09-01), Topfi
patent: 4359325 (1982-11-01), Dawson et al.
patent: 4381367 (1983-04-01), von Bonin et al.
patent: 4517104 (1985-05-01), Bloch et al.
patent: 4629754 (1981-12-01), Syrier et al.

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