Patent ID: 8088846

Claim:
A coating composition comprising: a. a binder having hydroxyl groups; b. an aromatic or aliphatic isocyanate hardener; and c. a complex of formula M(amidine) 2 (carboxylate) x , wherein (i) “M” is a metal selected from the group consisting of zinc, bismuth, aluminum, and zirconium; (ii) “amidine” is an amidine compound of formula I, II or III; wherein: R 1 is hydrogen, an organic group attached through a carbon atom, an amine group which is optionally substituted, or a hydroxyl group which is optionally etherified with a hydrocarbyl group having up to 8 carbon atoms; R 2 and R 3 are each independently hydrogen or an organic group attached through a carbon atom or are joined to one another by an N═C—N linkage to form a heterocyclic ring with one or more hetero atoms or a fused bicyclic ring with one or more heteroatoms; R 4 is hydrogen, an organic group attached through a carbon atom or a hydroxyl group which can be optionally etherified with a hydrocarbyl group having up to 8 carbon atoms; R 5 , R 6 , R 7 , and R 8 are independently hydrogen, alkyl, substituted alkyl, hydroxyalkyl, aryl, aralkyl, cycloalkyl, heterocyclics, ether, thioether, halogen, —N(R) 2 , polyethylene polyamines, nitro groups, keto groups, ester groups, or carbonamide groups optionally alkyl substituted with alkyl, substituted alkyl, hydroxyalkyl, aryl, aralkyl, cycloalkyl, heterocycles, ether, thioether, halogen, —N(R) 2 , polyethylene polyamines, nitro groups, keto groups or ester groups; R 9 , R 10 and R 11 are independently hydrogen, alkyl, alkenyl or alkoxy of 1 to 36 carbons, cycloalkyl of 6 to 32 carbons, alkylamino of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, phenyl, hydroxyalkyl, hydroxycycloalkyl of 1 to 20 carbon atoms, methoxyalkyl of 1 to 20 carbon atoms, aralkyl of 7 to 9 carbon atoms, the aralkyl wherein the aryl group is further substituted by alkyl of 1 to 36 carbon atoms, ether, thioether, halogen, —N(R) 2 , polyethylene polyamines, nitro groups, keto groups, ester groups, or carbonamide groups optionally alkyl substituted with alkyl, substituted alkyl, hydroxyalkyl, aryl, aralkyl, cycloalkyl, heterocyclics, ether, thioether, halogen, —N(R) 2 , polyethylene polyamines, nitro groups, keto groups or ester groups; and R represents alkyl, alkylene, aryl, aralkyl, cycloalkyl or heterocyclic radical, optionally substituted with halogen, nitro, alkyl, alkoxy or amino, and, when m=1, R is hydrogen or a plurality of radicals optionally joined by hetero atoms O, N or S; m=1 or 2; and n=2 or 3; (iii) “carboxylate” is an aliphatic, aromatic or polymeric carboxylate with an equivalent weight of about 45 to about 465; and (iv) “x” is the oxidation state of the metal.