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Title:
MULTILAYER POLYPROPLYENE FILM
Document Type and Number:
WIPO Patent Application WO/2020/245251
Kind Code:
A3
Abstract:
Multilayer film comprising at least a skin layer, a core layer and an inner layer,whereby the inner layer comprises a single site catalyst derived (SSC) random propylene ethylene copolymer having - a melting temperature (Tm) from 120°C to 144°C, - a content of units derived from ethylene in an amount of 1.5 to 6.0 wt.-%, - the melting temperature (Tm) fulfilling the following equation Tm < 156 °C – [5.2 x C2 content in wt.-%] °C wherein C2 content stands for the content of units derived from ethylene; and - a xylene cold soluble content (ISO 16152, 1st ED, 2005-07-01; 25°C) of preferably below 30 wt.-% wherein the multilayer film is free of phthalic acid esters as well as decomposition products thereof.

Inventors:
WANG JINGBO (AT)
GAHLEITNER MARKUS (AT)
BERNREITNER KLAUS (AT)
LESKINEN PAULI (FI)
GRUENBERGER MANFRED (AT)
Application Number:
PCT/EP2020/065445
Publication Date:
January 14, 2021
Filing Date:
June 04, 2020
Export Citation:
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Assignee:
BOREALIS AG (AT)
International Classes:
C08F210/06; B32B25/08; B32B27/08; B32B27/30; B32B27/32; C08F110/06; C08L23/14; A61B50/30; C08F4/659
Domestic Patent References:
WO2001042009A12001-06-14
WO2013144061A12013-10-03
Foreign References:
DE202013103803U12014-11-24
JP2007245490A2007-09-27
Attorney, Agent or Firm:
MAIWALD PATENTANWALTS- UND RECHTSANWALTSGESELLSCHAFT MBH (DE)
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