Recycled polyethylene compositions with good thermo-photo stability

Abstract

The present invention relates to a mixed-plastic recyclate polyethylene composition having a melt flow rate (ISO 1133, 2.16 kg, 190° C.) of from 0.1 to 1.2 g/10 min; and a density of from 930 to 955 kg/m3, and comprising 35 wt.-% or more of a recycled low density polyethylene fraction (A) having a crystallization temperature of not lower than 106° C.; at least one HALS UV stabilizer; at least one metal deactivator; a first virgin high density polyethylene component (B) and optionally a second virgin high density polyethylene component (C), optionally blended with carbon black or other pigments, wherein the mixed-plastic recyclate polyethylene composition has a tensile strain at break, determined according to ISO 527-1 on compression moulded ISO 527-2/5A specimens, after weather ageing of 2000 h according to EN ISO 4892-2, of at least 500%. The invention also relates to a method of preparing such a mixed-plastic recyclate polyethylene composition, to an article made from such a mixed-plastic recyclate polyethylene composition, especially a jacketing material of a power cable, and to the use of such a mixed-plastic recyclate polyethylene composition for wire and cable applications.

Dependencies are inferred from the claim text.