| 主权项 |
1. A polypropylene composition, comprising:
A) at least one propylene copolymer component, and B) a polymeric nucleating agent, wherein a mixture of A) and B) has an MFR2 of 2 g/10 min or more as measured according to ISO 1133 (230° C., 2.16 kg load) and a haze, measured according to ASTMD 1003 in a form of an injection molded test piece having a thickness of 2 mm which satisfies the following relation:
Haze (%)<100.9·N(−0.1)+3.88·MFR20.6−19.1·Z0.5−0.0232·MFR2+2.41·Z+0.2 with N=amount of polymeric nucleating agent in the propylene copolymer in ppm (weight) MFR2=MFR2 of the mixture of A) and B) (ISO 1133, 230° C., 2.16 kg load) and Z=comonomer content in the propylene copolymer component in wt-%, wherein Z is from 0.5 to 7 wt. %, wherein the polypropylene composition includes less than 1000 ppm of the polymeric nucleating agent. |
