Heterophasische Propylen-Copolymerzusammensetzung mit Hoher Fliessfähigkeit und Verbesserten Schlagzähigkeitseigenschaften

Details

Veröffentlichungs-Nr.

EP3945097

Aktenzeichen

EP20188954

Anmeldetag

31. Juli 2020

Veröffentlichung

3. Mai 2023

Erteilung

3. Mai 2023

Rechtsraum

EP

IPC

C08F2/00C08L23/12C08F210/06C08F210/16

Abstract

A heterophasic propylene copolymer composition comprising a heterophasic propylene copolymer (HECO), comprising a matrix (A) comprising a propylene homo- or copolymer, said propylene homo- or copolymer comprises at least two propylene homo- and/or copolymer fractions, propylene homo- or copolymer fraction (A1) and propylene homo- or copolymer fraction (A2), wherein propylene homo- or copolymer fraction (A1) has a melt flow rate MFR2 (230°C) of 250 g/10 min or more, preferably of 300 g/10min or more, more preferably of more than 300 g/10min, and propylene homo- or copolymer fraction (A2) has a melt flow rate MFR2 (230°C) in the range of from 0.5 to 25 g/10 min, preferably in the range of from 1 to 20 g/10min; and an elastomeric propylene copolymer (B), preferably a uni- or bimodal elastomeric propylene copolymer, more preferably a unimodal elastomeric propylene copolymer, dispersed in said matrix (A), wherein the heterophasic propylene copolymer composition has a melt flow rate MFR2 (230°C) of at least 50 g/10 min; the amount of propylene homo- or copolymer fraction (A1) is from 45 wt.% to 95 wt.% based on the total amount of all propylene homo- and/ or copolymer fractions present in the matrix (A); the amount of propylene homo- or copolymer fraction (A2) is from 5 wt.% to less than 15 wt.% based on the total amount of all propylene homo- and/or copolymer fractions present in the matrix (A); and the xylene cold soluble fraction (XCS) of the heterophasic propylene copolymer composition comprises more than 18 wt.% of the total heterophasic propylene copolymer composition (HECO).

Anmelder

Firma

Borealis AG

Land

🇦🇹 Österreich

Fachgebiete