CORROSION INHIBITORS; COMPOSITIONS FOR PROTECTING FERROUS METALS AND THE PROTECTED METALS

摘要

Compositions useful for inhibiting the corrosion of ferrous metals in contact with aqueous systems comprise (a) a telomeric compound of formula: IMAGE or salts thereof, wherein R11 is hydrogen or a methyl or ethyl residue; R is hydrogen, a straight- or branched alkyl residue having from 1-18 carbon atoms, a cycloalkyl residue having from 5-12 carbon atoms, an aryl residue, an aralkyl residue, a residue of formula: IMAGE wherein R11 has its previous significance; and the sum of n+m is an integer of at most 100; or a residue -OX wherein X is hydrogen or a straight- or branched alkyl residue having 1-4 carbon atoms and R1 is a residue -OX, wherein X has its previous significance.