Polyolefinic copolymer additives for lubricants and fuels

Compositions – Electrolytes for electrical devices

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44 62, 44 63, 252 50, 252 515A, 525301, 525299, C10M 132, C10M 326, C10L 114, C08L 2300

Patent

active

041607392

ABSTRACT:
Graft copolymers wherein the backbone polymer is a polymeric hydrocarbon such as ethylene/propylene copolymer and the grafted units are the residues of a monomer system comprising maleic acid or anhydride and one or more other monomers copolymerizable therewith, the monomer system being post-reacted with a polyamine compound. The graft copolymers impart combined detergent, viscosity index improvement and other useful properties to lubricating oils and hydrocarbon motor fuels.

REFERENCES:
patent: 3687849 (1972-08-01), Abbott
patent: 3914203 (1975-10-01), Lee
patent: 3929800 (1975-12-01), Horowitz
patent: 4063010 (1977-12-01), Marie et al.
patent: 4071580 (1978-01-01), Alberts et al.
patent: 4089794 (1978-05-01), Engel et al.

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