Heterophasische Propylen-Copolymerzusammensetzung mit Hoher Fliessfähigkeit mit Verbesserten Schlagzähigkeitseigenschaften und Thermischer Stabilität

Details

Veröffentlichungs-Nr.

EP3945098

Aktenzeichen

EP20188955

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 three propylene homo- and/or copolymer fractions, propylene homo- or copolymer fraction (A1), propylene homo- or copolymer fraction (A2) and propylene homo- or copolymer fraction (A3), wherein propylene homo- or copolymer fraction (A1) has a melt flow rate MFR₂ (230°C) in the range of from 300 g/10min to 600 g/10min, propylene homo- or copolymer fraction (A2) has a melt flow rate MFR₂ (230°C) in the range of from 100 to 250 g/10 min, and propylene homo- or copolymer fraction (A3) 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 80 g/10 min; the amount of propylene homo- or copolymer fraction (A3) is in the range of from 5.0 wt.% to less than 15.0 wt.% based on the total amount of all propylene homo- and/or copolymer fractions present in the matrix (A); and the soluble fraction (SF) according to CRYSTEX QC of the heterophasic propylene copolymer composition comprises less than 18.0 wt.% of the total heterophasic propylene copolymer composition (HECO).

Anmelder

Firma

Borealis AG

Land

🇦🇹 Österreich

Fachgebiete