Lubricating oil compositions containing hydrogenated polybutadie

Details Lubricating oil compositions containing hydrogenated polybutadie Lubricating oil compositions containing hydrogenated polybutadie

1974-02-21

1976-05-25

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

C10M 116

Patent

active

039591611

ABSTRACT:
A lubricating oil composition having an improved viscosity index is manufactured by admixing lubricating oil in major proportion with a butadiene polymer in minor proportion, said polybutadiene having a molecular weight of at least 20,000 and a microstructure of from 65 to 85 % ##EQU1## units, from 2 to 35 % of -- CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 -- units and from 0 to 25 % of -- CH.sub.2 --CH = CH--CH.sub.2 -- units.

REFERENCES:
patent: 3554911 (1971-01-01), Schiff et al.
patent: 3600311 (1971-08-01), Naiman et al.
patent: 3795615 (1974-03-01), Pappas et al.

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