Crosslinkable polymer coating compositions and process for preparing the same using tetrachloroethylene or 1,1,1-trichloroethylene solvent

Claim 1

In the process for preparing a lacquer from crosslinkable polymers, the improvement wherein a monomer composition consisting essentially of (1) from about 1 to 15 weight percent of an alpha,beta-olefinically unsaturated carboxylic acid; (2) from about 10 to 25 weight percent of a hydroxyalkyl acrylate or methacrylate wherein the hydroxyalkyl group has from 2 to 4 carbon atoms in the alkyl group and; (3) the remainder needed to make 100 weight percent of at least one comonomer selected from the group consisting of an alkenyl aromatic monomer, an alkyl acrylate having from 1 to 8 carbon atoms in the alkyl group and mixtures thereof, is dissolved in tetrachloroethylene, 1,1,1-trichloroethane or mixtures thereof and subjected to thermal and catalytic inducement of free radical polymerization, and thereafter a crosslinking agent having at least 2 functional moieties reactive with the hydroxyalkyl groups or the carboxyl groups is dissolved in the solution of the interpolymer.