Process for the glycolytic decomposition of polyurethane plastics

摘要

Process for recycling polyurethane plastics by cleavage with a cpd. (I) having at least two isocyanate-reactive H atoms to form regenerated material contg. isocyanate-reactive H atoms, in which the polyurethane material and the (I) are fed together with a 2- to 20-fold amt. of the regenerate to a high speed mixing and comminution pump that generates high shear forces between rotor and stator.