US 2022/0177679 A1 · RECYCLED POLYETHYLENE-POLYPROPYLENE BLENDS COMPRISING A COMPATIBILIZER

Abstract

The present invention is directed to a polyethylene-polypropylene composition comprising a blend (A) being a recycled material, said blend comprising polypropylene and polyethylene, and a compatibilizer (B) being a copolymer of 1-butene and ethylene. Further, the present invention is directed to an article comprising said polyethylene-polypropylene composition and a process for preparing said polyethylene-polypropylene composition. The present invention is also directed to the use of a compatibilizer (B) being a copolymer of 1-butene and ethylene for improving the impact-stiffness balance and the morphology of the blend (A).

Claims14

Dependent claims

A polyethylene-polypropylene composition, obtainable by blending:

a) 75.0 to 94.0 wt. %, based on the overall weight of the polyethylene-polypropylene composition, of a blend (A) comprising
i) polypropylene, and
ii) polyethylene,
wherein the weight ratio of polypropylene to polyethylene is in the range of 3:7 to 7:3, and
wherein blend (A) is a recycled material, which is recovered from a waste plastic material derived from post-consumer and/or industrial waste;
and
b) 6.0 to 25.0 wt. %, based on the overall weight of the polyethylene-polypropylene composition, of a compatibilizer (B) being a copolymer of 1-butene and ethylene.

4 more elements

Dependencies are inferred from the claim text.

Recycled polyethylene-polypropylene blends comprising a compatibilizer

Life of this patent

Recycled polyethylene-polypropylene blends comprising a compatibilizer

Life of this patent

Abstract

Claims14