Multi-layered polymer film
AssigneeBorealis AG
InventorsJoachim Fiebig, Kristin Reichelt
Life of this patent
Estimating the term…
Abstract
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 %.
Claims20
A multi-layered polymer film, comprising a sealing layer and a base layer,
- wherein the sealing layer comprises a polypropylene, 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 % and an amount of comonomer units which are derived from the at least one C5-12 alpha-olefin of from 0.01 mol % to 2.0 mol %.
Dependencies are inferred from the claim text.