Novel dispersant-VI improvers and lubricating oil containing sam

Details Novel dispersant-VI improvers and lubricating oil containing sam Novel dispersant-VI improvers and lubricating oil containing sam

1982-06-23

1983-05-03

Metz, Andrew

Compositions

Electrolytes for electrical devices

252 55, 525282, 525381, C10M 132

Patent

active

043820077

ABSTRACT:
This invention concerns dispersant-VI improvers prepared by reacting a polyamine-derived dispersant with an oxidized ethylene-propylene polymer or ethylene-propylene-diene terpolymer. The products thus formed have a dispersancy superior to that obtained by separately blending the reactants in a lubricating oil. Also disclosed are oils containing the present dispersant-VI improvers.

REFERENCES:
patent: 3687905 (1972-08-01), Dorer
patent: 3864268 (1975-02-01), Culbertson et al.
patent: 3931024 (1976-01-01), Hu
patent: 4051050 (1977-09-01), Elliott et al.
patent: 4068056 (1978-01-01), Engel et al.
patent: 4113636 (1978-09-01), Engel et al.
patent: 4134844 (1979-01-01), De Uries et al.
patent: 4152276 (1979-05-01), Jackish

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