Use of vinyl addition copolymers to improve quality of lubricati

Details Use of vinyl addition copolymers to improve quality of lubricati Use of vinyl addition copolymers to improve quality of lubricati

1984-12-28

1986-04-22

Garvin, Patrick P.

Compositions

Electrolytes for electrical devices

252 334, 252 427, C10M10508

Patent

active

045841110

ABSTRACT:
Processes for the manufacture of substantially haze free lubricating oil additives such as the zinc salts of dihydrocarbyldithiophosphoric acid and calcium phenate comprising the addition of an effective amount of an acrylamide polymer as a water-in-oil emulsion after the neutralization of an oil solution of the oil soluble moiety of said additive such as the neutralization of a dihydrocarbyldithiophosphoric acid by zinc oxide whereby the resulting colloidal by-products, untreated raw materials and suspended impurities are more susceptible to subsequent separation processes, such as centrifugation and filtration.

REFERENCES:
patent: 4104291 (1978-08-01), Sabol et al.
patent: 4215067 (1980-07-01), Brannen et al.
patent: 4282106 (1981-08-01), Schaap et al.
patent: 4466895 (1984-08-01), Schroeck

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