Patent ID: 9587044
Date: 2017-03-07
CPC Classifications: C08F,C08L

Claim:
1. Polypropylene having: (a) a melt flow rate MFR (b) a complex viscosity ratio eta*(0.05 rad/sec)/eta*(300 rad/sec) of at least 20.0 measured by dynamic rheology according to ISO 6271-10 at 200° C.; wherein said polypropylene has a first polypropylene fraction (PP1), a second polypropylene fraction (PP2), and a third polypropylene fraction (PP3), said first polypropylene fraction(PP1) , second polypropylene fraction (PP2), and third polyproplene fraction (PP3)differ in the melt flow rate MFR 2 (230° C. by at least 30 g/10min.