THERMOPLASTIC, ELASTOMERIC BITUMEN AND POLYURETHANE BEADS, ITS PREPARATION PROCESSES AND USES

摘要

The present invention relates to a granule comprising an elastomeric polyurethane and bitumen, its method of preparation in an extruder and its use for preparing a bituminous binder, which can in particular be used to produce prefabricated waterproofing membranes by deposition of said bituminous binder on a fibrous support.