Compositions – Electrolytes for electrical devices
Patent
1980-03-04
1981-09-08
Sneed, Helen M. S.
Compositions
Electrolytes for electrical devices
26034839, 546 6, 548101, C10M 148, C07F 306
Patent
active
042883350
ABSTRACT:
Metallic dithiophosphates of the formula: ##STR1## in which R.sub.1 is an alkyl, alkenyl, cycloaliphatic, aryl, or heterocyclic radical, R.sub.2 and R.sub.3 are alkyl radicals, preferably C.sub.1 -C.sub.4 radicals, and m represents the valence of the metal M, M being a metal of Groups IIB, IIIB, IVB, or VIII of the Periodic System of Elements, preferably zinc. They are obtained by the action of P.sub.2 S.sub.5 on a monoester alcohol of the formula: ##STR2## and then by reaction of a metal oxide, such as zinc oxide, with the dithiophosphoric acid formed. These metallic dithiophosphates are useful as extreme-pressure and anti-wear additives for lubricating oils in amounts of between 0.2 and 10 percent, referred to the weight of lubricating oils.
REFERENCES:
patent: 2177983 (1939-10-01), Harris
patent: 2802856 (1957-08-01), Norman et al.
patent: 2895973 (1959-07-01), Ready et al.
patent: 2905683 (1959-09-01), Goldsmith
patent: 2959544 (1960-11-01), Smith et al.
patent: 3102096 (1963-08-01), Nygaard et al.
patent: 3288819 (1966-11-01), Tichelaar et al.
patent: 3944495 (1976-03-01), Wiley et al.
patent: 4044032 (1977-08-01), Wiley et al.
Orogil
Schapira Ronald A.
Schwartz Herbert F.
Sneed Helen M. S.
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