Corrosion inhibited compositions

Details Corrosion inhibited compositions Corrosion inhibited compositions

1981-05-28

1982-12-28

Shine, W. J.

Compositions

Electrolytes for electrical devices

252 39, 252 41, 252 493, 252 495, 252 515A, 252 56R, 252 76, 252 79, 252392, 252396, 26050117, 562508, 562577, 562578, 544107, C10M 120, C10M 132, C10M 304

Patent

active

043660762

ABSTRACT:
Corrosion-inhibited compositions are described comprising a functional fluid in contact with a ferrous metal and, as corrosion inhibitor, a compound having the formula: ##STR1## wherein X is H, an alkali- or alkaline earth metal, NH.sub.4, the residue of a protonated amine, or the group --OX is the residue of an alkanol having from 1 to 20 carbon atoms or of di-, tri- or tetra-ol having from 2 to 12 carbon atoms; R.sup.1, R.sup.2 and R.sup.4 are the same or different and each is H or --CH.sub.2 CH.sub.2 COOX wherein X has its previous meaning; R.sup.3 and R.sup.5 are the same or different and each is H, --CH.sub.2 CH.sub.2 COOX wherein X has its previous meaning, or R.sup.3 or R.sup.5 is a straight- or branched chain alkyl group having from 3 to 16 carbon atoms; or R.sup.3 and R.sup.5, together with the carbon atom to which they are each attached, may form a cycloalkanone ring containing from 5 to 15 carbon atoms.

REFERENCES:
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patent: 2820805 (1958-01-01), Beets et al.
patent: 3012071 (1961-12-01), Gilby
patent: 3763231 (1973-10-01), Bruson et al.
patent: 3965027 (1976-06-01), Boffardi et al.
patent: 3989637 (1976-11-01), Hogue et al.
patent: 4078144 (1978-03-01), Lavigne
patent: 4102701 (1978-07-01), Campbell et al.
patent: 4124608 (1978-11-01), Larkin
patent: 4273664 (1981-06-01), Brandolese
CA, 52, 10160h, (1958).
CA, 41, 2237a, (1947).
CA, 87, 43168z, (1977).

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