BIAXIAL ORIENTIERTE POLYPROPYLENFOLIE

BIAXIAL ORIENTIERTE POLYPROPYLENFOLIE

The present invention relates to a biaxially oriented polypropylene film which comprises a polypropylene having a) xylene solubles (XS) of at least 0.5 wt.-% and b) a strain hardening index ( SHI @ 1s -1 ) of at least 0.15 measured at a deformation rate d µ/ dt of 1.00 s -1 at a temperature of 180°C...

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Bibliographische Detailangaben
Hauptverfasser: LEHMUS, PETRI, DANIELS, YVO, JACOBS, FRANCK, ERNST, EBERHARD, STADLBAUER, MANFRED
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:The present invention relates to a biaxially oriented polypropylene film which comprises a polypropylene having a) xylene solubles (XS) of at least 0.5 wt.-% and b) a strain hardening index ( SHI @ 1s -1 ) of at least 0.15 measured at a deformation rate d µ/ dt of 1.00 s -1 at a temperature of 180°C, wherein the strain hardening index ( SHI ) is defined as the slope of the logarithm to the basis 10 of the tensile stress growth function (lg (· E + )) as function of the logarithm to the basis 10 of the Hencky strain (lg (µ)) in the range of the Hencky strains between 1 and 3.