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N-Butyl amine has been grafted unto Dow epoxy resin. The product was evaluated as an acid inhibitor by gravimetric techniques. The reduction in corrosion of aluminium in 1 M HCl solution was 92% at and 83% at with an inhibitor concentration of 100 ppm. The corrosion rate at this concentration was and mm/yr at and . For the specimens in HCl without inhibitor at 10-hour immersion period, the corrosion rate was and mm/yr, respectively, at and . Data obtained correlate with Langmuir isotherm.

A range of polymers carrying amino‐functions [NHEt, NHBun, NEt2, NPr 2n, N(CH2CH2CH2NH2)2, NMeCH2CH2CH2NH2 or NEtCH2CH2CH2 NH2] has been synthesised via amination of styrene‐vinylbenzyl chloride copolymers, poly(epichlorohydrin) and poly(2‐chloroethyl vinyl ether), and via homopolymerisation and copolymerisation (with styrene) of (n‐butyl)(vinylbenzyl)‐ammonium chloride. Some of the polymers showed promise as curing agents for epoxy resins.