Nitrogen-containing additives for non-aqueous functional fluids

Details Nitrogen-containing additives for non-aqueous functional fluids Nitrogen-containing additives for non-aqueous functional fluids

1986-03-12

1988-08-09

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252392, C10M13304

Patent

active

047626283

ABSTRACT:
The invention relates to non-aqueous functional fluids which contain at least one compound of formula I ##STR1## wherein X is --O--, --S--, --SO--, --SO.sub.2 --, --C(O)--O-- or --N(R.sup.3)--, in which R.sup.3 is hydrogen or C.sub.1 -C.sub.12 alkyl, R.sup.1 unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.5 alkyl substituted by one to three hydroxyl groups, R.sup.2 is hydrogen, unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.5 alkyl substituted by one to three hydroxyl groups, with the proviso that at least one of the residues R.sup.1 or R.sup.2 is hydroxy-substituted, and wherein R is C.sub.2 -C.sub.20 -alkyl, a residue --CH.sub.2 --CH(OH)--CH.sub.2 --NR.sup.1 R.sup.2, in which R.sup.1 and R.sup.2 have their previous significance, or R is C.sub.2 -C.sub.18 alkenyl, C.sub.2 -C.sub.3 alkynyl or C.sub.5 -C.sub.12 cycloalkyl, with the proviso that, when X is --O-- or --C(O)--O--, R is branched C.sub.4 -C.sub.20 alkyl, especially a tertiary alkyl group.
The compounds of formula I are very suitable as corrosion inhibitors for non-aqueous functional fluids.

REFERENCES:
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patent: 3872116 (1975-03-01), Gipson
patent: 4450138 (1984-05-01), Thompson et al.
patent: 4549882 (1985-10-01), Knapp
patent: 4549885 (1985-10-01), Knapp
Chem. Abst. 87, 52761q (1977).
Chem. Abst. 90, 121507n (1979).
Chem. Abst. 93, 25852n (1980).
Chem. Abst. 93, 96913u (1980).
Chem. Abst. 92, 110517f (1980).
Chem. Abst. 95, 96937w (1981).

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