Hydrogen sulfide suppressant additive for functional fluids

Details Hydrogen sulfide suppressant additive for functional fluids Hydrogen sulfide suppressant additive for functional fluids

1982-08-04

1983-10-11

Kittle, John E.

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 336, 252 427, 252 464, 252 497, 252 77, 260429R, 2604299, 2604381, 2604385R, 260439R, C10M 332, C10M 348

Patent

active

044091141

ABSTRACT:
There are disclosed mineral or synthetic oil functional fluids which are suppressed in their tendency to form H.sub.2 S at elevated temperatures by use of an additive of the formula ##STR1## wherein X is .dbd.O or H.sub.2, R is alkyl and M is a metal such as zinc. The invention is especially useful in automatic transmission fluid compositions.

REFERENCES:
patent: 3779928 (1973-12-01), Schlicht
patent: 4164473 (1979-08-01), Carpland et al.

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