| abstract |
A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a non-ionic ester of a sulfonic acid. The sulfonic acid ester is represented by the following structural formula: <IMAGE> wherein: Z is a radical selected from the group consisting of amino and an organic radical, said organic radical being connected to the sulfur atom by a carbon atom; <IMAGE> C3-C20 cycloalkyl; and R1, R2, R3, R4, R5 are independently hydrogen or an organic radical. These groups can be particularly described as follows: R1 is hydrogen, carboalkoxy, C3-C20 alkyl, C6-C18 aryl, or C3-C20 cycloalkyl; R2 is hydrogen, carboalkoxy, C3-C20 alkyl, C6-C18 aryl, or C3-C20 cycloalkyl; R3 is hydrogen, carboalkoxy, acyloxy, N-alkylcarbamyloxy, N-arylcarbamyloxy, C3-C20 alkyl, C6-C18 aryl, or C3-C20 cycloalkyl; R4 is hydrogen, carboalkoxy, acyloxy, N-alkylcarbamyloxy, N-arylcarbamyloxy, C3-C20 alkyl, C6-C18 aryl, or C3-C20 cycloalkyl, and R5 is hydrogen, carboalkoxy, acyloxy, N-alkylcarbamyloxy, N-arylcarbamyloxy, C3-C20 alkyl, C6-C18 aryl, or C3-C20 cycloalkyl. |