PRIMER INHIBITOR FOR ANTICORROSION PROTECTION OF ALUMINIUM ALLOYS Russian patent published in 1996 - IPC

FIELD: protection of metals against corrosion. SUBSTANCE: inhibitor primer for anticorrosion protection of aluminium alloys comprises semi-product which is 85.0-91.5% epoxy primer, solidifier which is 50% solution in organic solvent composed of fluorine- containing oligomer which is 8-14% product of reaction of polyethylene polyamine, toluene diisocyanate, cyclohexanone and octafluoroamyl alcohol with molecular weight of 700-850 and 0.5-1.0% inhibitor which is cyclohexylamine chromate. The inhibitor primes makes it possible to obtain contings having improved corrosion resistance to aggressive media (adhesion after 3 days in 3% NaCl at 50 C (1 mark) and after 15 days in 3% CH₃COOH (2 marks) and high adhesion strength to substrate made of D- 16 alloy. EFFECT: improved properties of the primer inhibitor. 3 tbl