| 摘要 |
<p>A liquid coating composition comprises the following ingredients A, B and C dissolved in the following weight proportions in an organic solvent: A. A non-oxidizing oil-free cross-linking alkyl resin containing free carboxylic acid groups, 20-60%, B. An alkylated amino-formaldehyde resin, 15-60% C. A vinyl chloride/vinyl acetate copolymer which contains free primary hydroxyl groups, free carboxylic acid groups or oxirane groups, 5-50% The composition is particularly suitable for application to flexible PVC sheet, and is heat-curable to a film whose adhesion to such sheet does not seriously deteriorate on aging.</p> |
