Compositions – Electrolytes for electrical devices
Patent
1976-09-03
1978-06-27
Curtis, Allen B.
Compositions
Electrolytes for electrical devices
252 47, 260302D, C10M 138, C10M 332
Patent
active
040973875
ABSTRACT:
Disclosed are a composition of matter, a process for making said composition, and a lubricating oil composition having improved anti-wear properties containing an effective amount of said composition of matter.
The composition of matter comprises olefin-dimercapto-thiadiazole compositions, especially an oil soluble reaction product of an olefin; lithium, sodium or potassium 2,5-dimercapto-1,3,4-thiadiazole or mixtures thereof; and a member selected from the group consisting of S.sub.2 Cl.sub.2, SCl.sub.2, S.sub.2 Br.sub.2, SBr.sub.2, R-S-Cl, R-S-Br, and mixtures thereof, wherein R comprises C.sub.1 -C.sub.100 hydrocarbyl or bromo, chloro or hydroxy substituted hydrocarbyl.
Some of these compositions can be represented as follows: ##STR1## wherein X comprises R.sub.1 -SS-R.sub.2, wherein R.sub.1 comprises a C.sub.6 -C.sub.100 hydrocarbyl or bromo, chloro or hydroxy substituted hydrocarbyl, and R.sub.2 comprises R.sub.1 or ##STR2## and wherein Y comprises H or X. Preferably R.sub.1 comprises C.sub.6 -C.sub.100 alkene or alkane, still more perferably, C.sub.6 -C.sub.20 alkene or alkane. These compositions are effective wear inhibitors in lubricating oil.
The process for making oil soluble derivatives of 2,5-dimercapto-1,3,4-thiadiazole comprises first reacting an olefin with a member selected from the group consisting of S.sub.2 Cl.sub.2, SCl.sub.2, S.sub.2 Br.sub.2, SBr.sub.2, R-S-Cl, R-S-Br, and mixtures thereof, to form a first reaction product; and then reacting said first reaction product with lithium, sodium or potassium 2,5-dimercapto-1,3,4-thiadiazole or mixtures thereof.
REFERENCES:
patent: 2719125 (1955-09-01), Roberts
patent: 2719126 (1955-09-01), Fields
patent: 2736729 (1956-02-01), Krzikalla et al.
patent: 3691183 (1972-09-01), Thaler
patent: 3821236 (1974-06-01), Ripple
patent: 3840549 (1974-10-01), Blaha et al.
Curtis Allen B.
DiPietro Mark J.
Gilkes Arthur G.
McClain William T.
Standard Oil Company (Indiana)
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