STRAHLENBESTAENDIGE POLYPROPYLENHARZ-ZUSAMMENSETZUNG UND DEREN VERWENDUNG

摘要

A radiation-stable polypropylene resin composition having excellent transparency, and comprising a polypropylene resin and, per 100 parts by weight of the polypropylene resin, 0.005-8 parts by weight of a specific sorbitol derivative, 0.01-4 parts by weight of a specific phosphite compound and 0.01 - 4 parts by weight of a specific polyamine compound. Excellent molding flowability can be imparted to this resin composition by subjecting it to thermal degradation at 190 DEG C-270 DEG C in the presence of an organic peroxide until a desired melt index is achieved.