| 摘要 |
The present invention relates to a multi-layered polymer film, comprising a sealing layer and a base layer, wherein the sealing layer comprises a polypropylene (SL-PP), and wherein the sealing layer polypropylene SL-PP comprises comonomer units derived from ethylene in an amount of from 0.5 wt% to 25 wt% and from at least one C5-12 alpha-olefin in an amount of from 0.5 mol% to 4.0 mol%, and has an amount of xylene solubles XS of at least 20 wt%, and the xylene solubles have an amount of ethylene-derived comonomer units of from 4 wt% to 50 wt%. |
