Compositions – Electrolytes for electrical devices
Patent
1978-08-22
1980-08-12
Shine, W. J.
Compositions
Electrolytes for electrical devices
252 45, 549 1, C10M 120, C10M 138, C07D32702
Patent
active
042172330
ABSTRACT:
Epithio compounds or mercaptans of the formula I ##STR1## wherein X is an oxygen or sulfur atom, --CH.sub.2 --, --CH(R.sub.1)--, --COO--, --NH-- or --NR.sub.1 --, each of Y and Z is hydrogen or together they are a direct bond, Q is hydrogen if Y and Z together are a direct bond, or is --OH, --SH, --OR.sub.1, --SR.sub.1, --OOCR.sub.1, --S--CH.sub.2).sub.n OH, --S--CH.sub.2).sub.n COOR.sub.1, --NHR.sub.1 or --N(R.sub.1).sub.2, n is an integer from 1 to 10, each of R and R.sub.1 independently is a cyclic or acyclic hydrocarbon radical of aliphatic or aromatic character containing 4 to 30 carbon atoms which can be interrupted by oxygen or sulfur, with the proviso that the groups R and R.sub.1 contain a total number of 8 to 30 carbon atoms. These compounds have excellent suitability for use as additives for lubricants, especially as extreme pressure and antiwear additives.
REFERENCES:
patent: 2965651 (1960-12-01), Kosmin
patent: 3560524 (1971-02-01), Clason et al.
patent: 3733275 (1973-05-01), Magne et al.
patent: 3873457 (1975-03-01), Magne et al.
patent: 3944491 (1976-03-01), Baldwin
Sander, M., Thiiranes, Chem. Rev., 66, pp. 297-304, 1966.
Forbes, E. S., Antiwear and Extreme Pressure Additives for Lubricants, Tribiology, 3, pp. 145-146, 1970.
Ciba-Geigy Corporation
Hall Luther A. R.
Shine W. J.
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