Acids and salts aminophosphonic as anti-corrosion agents in compositions for coating for metals

摘要

Describes compounds of formula (br / (see appended drawing in bopi) & br / in which the symbols have the general definition given in fig. 1, and their salts of zirconium, bismuth and calcium carbonate, as well as their salts with the compounds of formula ii br / (see appended drawing in bopi) & br / in which the symbols have the general definition given in fig. 1, such as corrosion inhibitors into the coating compositions for the protection of metal surfaces.