Microcapsule-containing wax composition

Claim 1

A microcapsule-containing wax composition which contains--based on (a+b+c): (a) from 20 to 55% by weight of microcapsules, (b) from 79 to 30% by weight of wax or of a mixture of different waxes, of melting point from about 50° to 140° C., (c) from 1 to 10% by weight of at least one non-ionic emulsifier, at least one alkali metal salt of a montan wax acid or a mixture of (α) at least one non-ionic emulsifier and (β) at least one alkali metal salt of a montan wax acid or alkali metal C 10 -C 20 -fatty alcohol-sulfate and/or alkali metal C 10 -C 20 -alkanesulfonate, or a mixture of these, (d) from 0 to 20% by weight of one or more pigments, one or more fillers or a mixture of these and (e) from 0 to 60% by weight of volatile constituents, the wall material of the microcapsules (a) being a polymeric melamine-formaldehyde condensate which is obtained by condensing melamine with formaldehyde or condensing methylolmelamines and/or their methyl ethers, using a ratio of melamine to formaldehyde of from 1:2 to 1:6, at a pH of from 3.5 to 5.5 and at from 60° to 100° C., and then hardening for from 2 to 10 hours at from 60° to 100° C., the ratio of core material to wall material in the capsules being from 1:15 to 1:2 and the microcapsules having a diameter of from 2 to 10 μm.