Repeatedly recyclable-polyolefin copolymer mimics (RR-PCMS)

The introduction of RR-PCMs addresses the inefficiencies in current recycling methods by enabling high recycling efficiency of polyolefin copolymers with minimal property degradation and reduced reliance on virgin materials, thereby lowering the carbon footprint of recycled articles.

WO2025061954A1 Publication Date: 2025-03-27SABIC GLOBAL TECHNOLOGIES BV
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Patent Information

Application Number
PCT/EP2024/076448
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-10
Filing Date
2024-09-20
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

Current recycling methods for polyolefin copolymers, such as mechanical and chemical recycling, face inefficiencies, leading to degraded material properties and the need for additional virgin materials, which increases costs and carbon footprint.

Method used

The development of repeatedly recyclable-polyolefin copolymer mimics (RR-PCMs) that can be recreated from articles made from them, using a reaction product of difunctional linear oligomers, difunctional linkers, and trifunctional branched hydrocarbon moieties, allowing for high recycling efficiency without the need for additional virgin materials.

Benefits of technology

RR-PCMs enable repeated recycling of polyolefin copolymers with minimal loss of chemical and physical properties, reducing the need for virgin materials and lowering the carbon footprint of recycled articles.

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Abstract

A composition and methods of making the composition are described. The composition can include a repeatedly recyclable-polyolefin copolymer mimic (RR-PCM) of a polyolefin copolymer. The RR-PCM is a reaction product of a difunctional linear oligomer, a trifunctional branched hydrocarbon group having at least 3 carbon atoms, and a difunctional linker.
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