| 摘要 |
Heterophasic propylene copolymer comprising (a) a matrix (M) being a polypropylene (PP), said polypropylene (PP) has a polydispersity index (PI) of at least 5.0, and (b) an elastomeric propylene copolymer (EC) dispersed in said matrix (M), wherein (i) said heterophasic propylene copolymer has a melt flow rate MFR2 (230° C.) of equal or below 1.0 g/10 min, (ii) the amorphous phase (AM) of the xylene cold soluble fraction (XCS) of the heterophasic propylene copolymer has an intrinsic viscosity (IV) of at least 3.5 dl/g.
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