Polymer composition suitable for film manufacturing
OwnerJingbo Wang, Klaus Bernreitner +4inventors
InventorsJingbo Wang, Klaus Bernreitner, Peter Niedersuess, Stefan Ortner, Joel Fawaz, Karlheinz Friedrich
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OwnerJingbo Wang, Klaus Bernreitner +4inventors
InventorsJingbo Wang, Klaus Bernreitner, Peter Niedersuess, Stefan Ortner, Joel Fawaz, Karlheinz Friedrich
Estimating the term…
The present invention relates to a polymer composition suitable for manufacturing a film comprising the following components: a) 99.0 to 99.9999 wt.-% based on the total weight of the polymer composition of a metallocene-catalysed heterophasic polypropylene comprising: i) 80 to 95 wt.-% of a crystalline matrix being a propylene homo- or copolymer containing 0.0 to 5.0 wt.-% of a comonomer each based on the total weight of the metallocene-catalysed heterophasic polypropylene; and ii) 5 to 20 wt.-% based on the total weight of the metallocene-catalysed heterophasic polypropylene of an amorphous propylene ethylene elastomer optionally comprising C4-C12 alpha-olefin(s) as further comonomers, dispersed in said crystalline matrix i), wherein the crystalline matrix i) has a MFR2 (230° C., 2.16 kg, ISO 1133) in the range of 1.0 to 10.0 g/10 min and a melting point Tm (determined by DSC as described in the specification) in the range of 130 to 160° C.; and the amorphous phase ii) has a C2-content of the XCS fraction in the range of 10 to 50 wt.-% based on the total weight of the and an IV of the XCS fraction (DIN ISO 1628/1) in the range of 1.2 to 5.0 dl/g; and i) and ii) add up to 100 wt.-%, and b) 0.0001 to 1.0 wt.-% of a beta-nucleating agent; wherein components a) and b) add up to 100 wt.-%. The present invention further relates to a film made of this composition and its use.
A polymer composition suitable for manufacturing a film comprising the following components:
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Dependencies are inferred from the claim text.