Modified recycled polyolefins

Abstract

A polyolefin composition obtainable by blending a) 96.0 to 99.7% by weight of a blend (A), which is a recycled material and comprises A-1) 30 to 70% by weight of an isotactic polypropylene homopolymer, A-2) 20 to 50% by weight of a polyethylene and an ethylene-containing copolymer, with a maleic anhydride grafted SEBS block copolymer, the present invention relates to a maleic anhydride grafted SEBS block copolymer comprising: A-1) 0.5 to 4.0 wt.% of a styrene-butadiene copolymer, A-3) 0.5 to 4.0 wt.% of a polyamide-6, a plurality of optional components, A-11) 1 to 100 ppm of limonene, and A-12) a total fatty acid content of 1 to 200 ppm, characterized by its melt volume rate and maleic anhydride content.

Description

technical field [0001] The present invention relates to an upgraded recycled polyolefin composition, and a method for obtaining such an upgraded recycled polyolefin composition. Background technique [0002] Polyolefins, particularly polyethylene and polypropylene, are increasingly consumed in large quantities in a wide range of applications including packaging for food and other items, fibers, automotive parts and a wide variety of manufactured goods. [0003] Polyethylene based materials are a particular problem because these materials are widely used in packaging. Considering the huge amount of waste collected compared to the amount of waste recycled back into the stream, there is still a lot of potential for smart reuse of plastic waste streams and mechanical recycling of plastic waste. [0004] Typically, the bulk of the polypropylene recycled on the market is a blend of both polypropylene (PP) and polyethylene (PE), especially for post-consumer waste streams. In addi...

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Problems solved by technology

[0005] Previously employed compatibilizers have addressed the impact strengt

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