| abstract |
An alkaline earth metal chelate complex of 2,2,6,6-tetramethylheptanedione of the formula (I) n n M.sup.2+ (C.sub.11 H.sub.19 O.sub.2).sup.-.sub.2.L.sub.k (I) n n is described, in which M is calcium, strontium or barium, L is a ligand and k is a number from 1 to 3, the complex being free of water of hydration and the ligand L being an aliphatic ether having at least two oxygen atoms in the molecule. A process for the preparation of the chelate complex and its use for the production of coated substrates are also described. |