Thiadiazole derivatives as lubricant additives

Details Thiadiazole derivatives as lubricant additives Thiadiazole derivatives as lubricant additives

1988-12-15

1990-05-15

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

252 475, 252 781, 548142, C10M13338, C10M13536

Patent

active

049255800

ABSTRACT:
A lubricant composition or hydraulic oil composition containing at least one lubricant or one hydraulic oil and at least one 2,5-dimercapto-1,3,4-thiadiazole of general formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which are identical or different, are alkyl having 1 to 24 C atoms, alkenyl having 3 to 12 C atoms or phenyl-(C.sub.1 -C.sub.4)-alkyl which is unsubstituted or substituted in the phenyl radical by C.sub.1 -C.sub.4 -alkyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4, with the N atom to which they are bonded, are a morpholine, piperidine, pyrrolidine, piperazine, methylpiperazine or perhydroazepine radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, and X and X.sup.1, which are identical or different, are H, alkyl having 1 to 23 C atoms, phenyl, phenyl-(C.sub.1 -C.sub.4)-alkyl or phenyl substituted by C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.12 -alkoxy, hydroxyl, di(C.sub.1 -C.sub.4 -alkyl)amino, halogen and/or nitro.

REFERENCES:
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patent: 2799651 (1957-07-01), Richardson et al.
patent: 4246126 (1981-01-01), Arakelian et al.
patent: 4617136 (1986-10-01), Doe, Jr.
patent: 4704426 (1987-11-01), Doe, Jr.
J. Kobe et al., Croatica Chemica Acta 37 (1965), pp. 215-221.

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