CRYSTALLINE COMPLEX COMPOUNDS OF MORPHOLINE DERIVATIVES WITH KETOACIDS AS CORROSION INHIBITORS, METHOD OF PREPARATION THEREOF, COATING COMPOSITION, AND CORROSION PROTECTION METHOD Russian patent published in 1999 - IPC

FIELD: organic synthesis and corrosion protection. SUBSTANCE: crystalline complex compounds depicted by general formula 1: (1) are provided where R₁,R₂,R₃,R₄ and R₅, independently, are halogen, C₁-C₁₅=-alkyl or C₆-C₁₀- aryl provided that at least one of R₁-R₅ radicals is hydrogen, halogen, or C₁-C₁₅-alkyl, R₁₀ is C₁-C₁₅-alkyl, and m=2. Compounds can be used as corrosion inhibitors in metal surface coating compositions. Provided are also coating compositions, method for protection of metal substrate from corrosion, and method of preparing compounds. EFFECT: increased resource of corrosion protectors. 15 cl, 11 tbl, 12 ex