Bitumen compositions containing thermoplastic polyolefins and their uses

摘要

A bituminous composition of bitumen-polymer type in a homogeneous phase comprises at least a bituminous base and compounds prepared from at least one thermoplastic polyolefin with high molecular mass; said compounds having a thermoplastic polyolefin content of at least 1% whose degree of crystallinity ≥ 30%; melting point ≥ 110 degrees C; and penetrability at 25 degrees C ≤ 300 tenths of a mm.