Steife Polypropylenzusammensetzung mit ausgezeichneter Streckung beim Bruch

Details

Veröffentlichungs-Nr.

EP2423257

Aktenzeichen

EP10174268

Anmeldetag

27. August 2010

Veröffentlichung

24. Oktober 2012

Erteilung

24. Oktober 2012

Rechtsraum

EP

IPC

C08L23/14

Abstract

Polypropylene composition comprising (a) a high melt strength polypropylene having a melt flow rate MFR 2 (230 °C) of equal or below 15 g/l 0min and a branching index g' of below 1.0, (b) a first heterophasic propylene copolymer comprising ¢ a polypropylene having a melt flow rate MFR 2 (230 °C) in the range of 50 to 500 g/10min and an elastomeric propylene copolymer having a propylene content in the range of 50 to 80 wt.-% and ¢ an intrinsic viscosity (IV) of equal or more than 2.5 dl/g, (c) a second heterophasic propylene copolymer comprising ¢ a random propylene copolymer having a melt flow rate MFR 2 (230 °C) in the range of 1 to 40 g/10min, a branching index g' of 1.0, and a comonomer content of more than 0.5 wt.-%,and ¢ an elastomeric propylene copolymer having a propylene content in the range of 50 to 80 wt.-%, and an intrinsic viscosity (IV) of equal or below 2.4 dl/g, (d) a polyethylene plastomer having an ethylene content of at least 50 wt.-%, and (e) a mineral filler (F).

Anmelder

Firma

Borealis AG

Land

🇦🇹 Österreich

Fachgebiete