| 摘要 |
Unoriented film comprising at least 70 wt.-% of an heterophasic propylene copolymer, said heterophasic propylene copolymer comprises a matrix being a random propylene copolymer and an elastomeric propylene copolymer dispersed in said matrix, wherein the heterophasic propylene copolymer has
(a) a melt flow rate MFR 2 (230 °C) in the range of 2.0 to 15.0 g/10min,
(b) a melting temperature in the range of 130 to 150 °C,
(c) a xylene cold soluble content in the range of 25 to 50 wt.-%,
(d) a comonomer content in the range of 10.0 to 15.0 wt.-%,
wherein further the xylene cold soluble content of the heterophasic propylene copolymer has (e) a comonomer content in the range of 20 to 30 wt.-% and
(f) an intrinsic viscosity in the range of 0.8 to below 2.0 dl/g.
wherein still further
(g) the random propylene copolymer (R-PP)
(g1) has a comonomer content in the range of 6.0 to 9.0 wt.-%; and
(g2) comprises at least two propylene copolymer fractions (R-PP 1) and (R-PP2),
wherein the first propylene copolymer faction (R-PP 1) has a comonomer content in the range of 2.0 to 6.0 wt.-%. |
