Novel lubricating compositions containing nitrogen containing hy

Details Novel lubricating compositions containing nitrogen containing hy Novel lubricating compositions containing nitrogen containing hy

1975-12-08

1978-05-30

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 47, 252 475, 252 515A, C10M 132

Patent

active

040922553

ABSTRACT:
There are disclosed novel lubricating compositions containing a major proportion of a lubricating oil and a minor proportion of an oil soluble polymer additive, and possibly other additives, wherein said polymer additive is a copolymer of ethylene, a monoolefin having 3 to 6 carbon atoms or a monoolefin having 3 to 6 carbon atoms and a non-conjugated diene with one or more specific nitrogenous monomers, said polymer having a reduced viscosity, measured in decalin at 135.degree. C, comprised between 0.5 and 2 and a polydispersity lower than 5.
Such a polymer additive improves the oil viscosity index while ensuring the dispersion of the slurry it may contain.

REFERENCES:
patent: 3182024 (1965-05-01), Stuart et al.
patent: 3360506 (1967-12-01), De Benneville et al.
patent: 3378492 (1968-04-01), Song et al.
patent: 3404091 (1968-10-01), Takashima et al.
patent: 3423367 (1969-01-01), Merijan et al.
patent: 3445387 (1969-05-01), Liston
patent: 3488294 (1970-01-01), Annand et al.
patent: 3728319 (1973-04-01), Kiesel et al.

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