Metal deactivators

Abstract

New N-substituted compounds, useful as metal deactivators in functional fluids, have the formula I: ##STR1## in which R.sub.1 and R.sub.2 are the same or different and each is C.sub. -C.sub.20 alkyl, C.sub.3 -C.sub.20 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.7 -C.sub.13 aralkyl, C.sub.6 -C.sub.10 aryl, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are each attached form a 5-, 6- or 7-membered heterocyclic residue, or R.sub.1 and R.sub.2 is each a residue of formula II: R.sub.3 X[(alkylene)O].sub.n (alkylene)-- II in which X is O, S or N, R.sub.3 is hydrogen or C.sub.1 -C.sub.20 alkyl, alkylene is a C.sub.1 -C.sub.12 alkylene residue and n is 0 or an integer from 1 to 6, or R.sub.1 has its previous significance and R.sub.2 is a residue of formula III: ##STR2## or R.sub.2 is a residue of formula III as defined above R.sub.1 is a residue of formula IV: --[alkylene].sub.n --N(R.sub.4)--A--[N(R.sub.4).sub.2 ].sub.m IV wherein m is zero or 1 and, when m is zero, A is a residue of formula III and, when m is 1, A is alkylene or C.sub.6 -C.sub.10 - arylene and alkylene and n have their previous significance and R.sub.4 is a residue of formula III, as hereinbefore defined.

Dependencies are inferred from the claim text.