| 摘要 |
<p>The invention relates to a process for the production of a melamine resin coated paper for the formation of hot-molded, scratch resistant surface layers on laminate synthetic substances and wooden working materials, whereby the paper is preimpregnated with a urea resin or an aminoplast rich in urea and is then provided with an application of a melamine resin. At the same time, a solution of a resin is used for the preimpregnation of the paper, the degree of condensation of which is higher than the degree of condensation of the melamine resin to be used for the formation of the cover layer, and the preimpregnation is dried hot, to an extent that the preimpregnation resin is hardened to the point it is practically no longer soluble in the melamine resin.</p> |
