| 摘要 |
FIELD: chemical industry. SUBSTANCE: present invention describes alkaline-earth metal salts, transition metal salts or transition metal complexes and compounds of formula (I): <EMI ID=0.158 HE=27 WI=60 TI=CHI> wherein R<SB>1</SB> is hydrogen; R<SB>2</SB>-R<SB>5</SB> are independently hydrogen, chlorine, bromine or C<SB>1</SB>-C<SB>8</SB>-alkyl; n is 2, provided that 3-(chloro-4-isopropylbenzoyl) propionic acid calcium salt is not present. Metals include calcium, titanium, manganese, iron, cobalt, zinc, yttrium, zirconium, lanthanum or cerium. Method of preparing salts of complexes comprises reacting ketocarboxylic acid of formula (I) or alkali metal salts thereof with alkaline-earth metal compound or transition metal compound. Composition for coatings comprises binding agent and corrosion inhibitor. Method for protecting corroding metal substrate comprises applying composition for coatings onto substrate. EFFECT: more efficient preparation and protection methods. 17 cl, 18 ex, 10 tbl |
