Gemischte Native Polyethylen-/recyclierte Polyethylenzusammensetzung mit Hoher Reissfestigkeit und Guter Flexibilität

Details

Veröffentlichungs-Nr.

EP4763911

Anmeldetag

20. Dezember 2024

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

C08L23/0807

Abstract

The present invention relates to a mixed virgin polyethylene / recycled polyethylene composition having a melt flow rate MFR<2> (ISO 1133:2022, 2.16 kg, 190 °C) in the range of from 0.10 to less than 1.00 g/10 min; and a density (ISO 1183-1:2019) in the range of from 940 to 980 kg/m<3>, the composition comprising A) a recycled polyethylene fraction comprising at least a first recycled polyethylene component (rPE1), wherein the recycled polyethylene fraction is present in an amount of 40 wt.-% or more, based on the total weight of the mixed virgin polyethylene / recycled polyethylene composition, and B) a virgin polyethylene fraction comprising at least a first virgin polyethylene component (vPE1), wherein the first virgin polyethylene component (vPE1) has a melt flow rate MFRs (ISO 1133:2022, 5 kg, 190 °C) of up to 0.50 g/10 min, a density (ISO 1183-1:2019) in the range of from 942 to 975 kg/m<3>, and is present in an amount of 15 wt.-% or more, based on the total weight of the mixed virgin polyethylene / recycled polyethylene composition, wherein the mixed virgin polyethylene / recycled polyethylene composition has, as determined by quantitative <13>C{<1>H} NMR spectroscopy as described herein: (a) a total amount of ethylene units (C2 units) of at least 90 wt.-%, and (b) a total amount of continuous propylene units (C3 units) in the range of from 0.1 to 5.0 wt.-%. The present invention further relates to a method of preparing the mixed virgin polyethylene / recycled polyethylene composition, an article comprising the same and the use of the mixed virgin polyethylene / recycled polyethylene composition for wire and cable jacketing applications.

Anmelder

Firma

Borealis GmbH

Land

🇦🇹 Österreich