Gemischte Native Polyethylen-/recyclierte Polyethylenzusammensetzung mit Verbesserter Wetterbeständigkeit

Details

Veröffentlichungs-Nr.

EP4763902

Anmeldetag

20. Dezember 2024

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

C08K3/04, C08L23/0807

Abstract

The present invention relates to a mixed virgin polyethylene / recycled polyethylene composition having a melt flow rate MFR₂ (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 946 to 980 kg/m³, the composition comprising A) a recycled polyethylene fraction (rPE), 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 wherein the recycled polyethylene fraction (rPE) has a content of titanium (Ti) of from 500 to 5,000 ppm, determined by X-ray fluorescence (XRF) spectroscopy as described herein and based on the total weight of the recycled polyethylene fraction (rPE), B) a virgin polyethylene fraction comprising at least a first virgin polyethylene component (vPE1), C) at least 0.3 wt.-% of one or more pigment(s), preferably carbon black (CB), and D) one or more metal deactivator(s), wherein the mixed virgin polyethylene / recycled polyethylene composition has, as determined by quantitative ¹³C{¹H} NMR spectroscopy as described herein: a) a total amount of ethylene units (C2 units) of at least 90.0 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/or cable jacketing applications.

Anmelder

Firma

Borealis GmbH

Land

🇦🇹 Österreich

Fachgebiete