摘要 |
Process for bake coating the surfaces of solid materials by applying the required amount of an aqueous dispersion to the surface to be coated, the dispersion containing, as the binder, a coarse-grained, crosslinkable dispersion copolymer formed from olefinically unsaturated monomers and, if appropriate, further customary lacquer formulation constituents, and the crosslinkable dispersion copolymer being composed of a mixture of at least 2 components which can contain identical or different monomer units, of which at least one component A, which is coarse-grained, has a relatively low average molecular weight, and at least one component B, which can be coarse-grained or fine-grained, has a relatively high average high molecular weight, and the ratio by weight of the components A:B being preferably within the range from 99:1 to 1:1, drying the applied amount of dispersion at a temperature below its minimum film-formation temperature and cross-linking the dried coating by baking at a temperature above the glass transition temperature of the copolymer. |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
ENGEL, DIETER, DR.;MONDT, JOSEF, DR.;RINNO, HELMUT, DR. |