Process for preparing a multilayer coating

摘要

Multilayer coatings having at least one base coating containing pigments and at least one transparent top coating are applied from coating compositions on the substrates and cured together. The coating composition contains: (a) a film-forming synthetic resin; (b) an organic solvent in which the synthetic resin is soluble; and (c) polymer microparticles having polar and/or ionic groups on their surfaces and a diameter of about 0.01 to 5 microns obtained by emulsion polymerization of ethylene unsaturated monomers, these monomers having a portion comprising 2 or more double bonds per molecule and the microparticles are insoluble in the solution of (a) and (b). The base coat(s) have (d) pigments and the top coats are free of pigments.