The invention relates to phenol-free decorative laminates, in the form of
sheets, such as HPL, CPL and LPL, using multilayer carrier materials in
which no phenol resins are used for impregnation and which are therefore
toxicologically safe, have a neutral odor and are more economical in
their production. The impregnating resin system used is a
urea/melamine/formaldehyde resin which was processed exclusively in an
aqueous reaction medium and to which a polymer dispersion was added, the
impregnating resin having been prepared in a first stage in the pH range
from 7.0 to 8.5 and in a second stage in the pH range from 4.0 to 6.0.
Finally, this resin batch is neutralized, added to the carrier material
and pressed with the latter.