1,3,5-triazine derivatives as corrosion inhibitors for metallic surfaces

摘要: The use of compounds the general formula (I) where A 1 , 2 3 are each N-R 11 12 13 S, O; R H, C -C 20 -alkyl, 15 -cycloalkyl; X 22 32 (X-a) to (X-m) groups, * in groups denotes bond or ** Y 4 is CH ; 5 selected from side chains natural alpha-amino acids, a carboxylate group, phosphate phosphonate sulphonate quaternary ammonium group; -Y together may also be O-H; n, m an integer range 20; p 30, salts (I), obtainable by at least partial neutralization with base alkali metal hydroxides and amines, substituents interrupted one more heteroatoms any position, number these not than 10, preferably 8, even especially 3, and/or substituted but five times, four times three 10 OH, CO PO(OH), PO(OH) SO H likewise twice, once, mentioned, as corrosion inhibitors for aqueous systems, example water/oil emulsions which contact metals alloys.