Antioxidant compositions

Details Antioxidant compositions Antioxidant compositions

1986-03-10

1989-07-11

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 482, 252 515R, 252391, 252393, C10M12910

Patent

active

048469858

ABSTRACT:
A composition is disclosed which comprises:
(A) a compound represented by the formula ##STR1## wherein Ar.sup.1 and Ar.sup.2 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or hydrocarbyl groups of from 1 to about 25 carbon atoms; X is at least one divalent sulfur atom, sulfone group, sulfixide group, or a mixture thereof; and n is a number ranging from 1 to about 5; and
(B) a compound represented by the formula ##STR2## wherein Ar.sup.3 and Ar.sup.4 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; and R.sup.5 is hydrogen, halogen, OH, NH.sub.2, SH, NO.sub.2 or a hydrocarbyl group of from 1 to about 50 carbon atoms. Concentrates, lubricants, functional fluids, fuels, aqueous compositions and emulsions comprising the foregoing compositions are also disclosed.

REFERENCES:
patent: 2691632 (1954-10-01), Harle
patent: 3274258 (1966-09-01), Odenweller
patent: 3322649 (1967-05-01), O'Shea
patent: 3368975 (1968-02-01), Davis et al.
patent: 3505225 (1970-04-01), Wheeler

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