In the process described, the plastic waste, coated to a greater or lesser extent with adhesive, is (a) comminuted in the presence of a liquid which does not dissolve the adhesive, at least sufficient liquid being employed so that the adhesive effect of the adhesive layer is eliminated by the release layer formed by the liquid, and (b) the waste particles separated from the liquid are adjusted to a residual liquid content which still effects the separation of the particles from one another. The described free-flowing mixture of thermoplastic waste preferably essentially comprises chips of this waste which have a liquid content of from 0.5 to 5% by weight.
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