The present invention relates to light fast, aqueous, strippable coating compositions
containing A) 40 to 90 wt. %, based on resin solids of A) and B), of aqueous polyurethane-polyureas
and B) 10 to 60 wt. %, based on resin solids of A) and B), of polymers prepared
from radically polymerizable monomers,
wherein the percentages of A) and B) add up to 100, based on the weight of
resin solids of A) and B). The present invention relates also to substrates coated
with these strippable coating compositions. In addition, the present invention
relates to the use of the stripped coatings as recycled material by mechanically
comminuting the stripped coatings, optionally after cleaning, and then either pressing
them in heatable presses to form sheets, or extruding them in an extruder to form
endless thermoplastic threads, and then processing the resulting threads by known
granulating methods to form cylindrical, spherical, lenticular or rhombic granules.
Finally, the present invention relates to the use of the resulting thermoplastic
granules for the production of articles by known processes such as injection molding,
blow molding, deep-drawing, slush molding or flat extrusion.
