Fibers and nonwoven materials comprising polymeric blends and polymeric mixtures that incorporate a blend of a first metallocene polypropylene and a second polypropylene are described. The first and second polypropylenes have a predetermined relationship for the melt temperature and the melt flow rate...http://www.google.fr/patents/US7491770?utm_source=gb-gplus-shareBrevet US7491770 - Fibers and nonwovens comprising polypropylene blends and mixtures
Fibers and nonwovens comprising polypropylene blends and mixtures