Polymeric dispersion and process

EP4758194A1Pending Publication Date: 2026-06-17BASF SE
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Patent Information

Application Number
EP2024761846
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-11
Filing Date
2024-08-08
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

The recycling of synthetic leathers is challenging due to their laminar structure and the difficulty in separating the PU resin from the fabric, leading to inefficient mechanical separation and environmental concerns.

Method used

A process involving the dismembering of synthetic leather, mixing with a transesterification agent, and heating to produce a polymeric dispersion that can be used to recycle synthetic leathers without mechanical delamination, reducing labor and energy consumption.

Benefits of technology

The process effectively recycles synthetic leathers into a polymeric dispersion with low amine content, which can be reused to produce new polymers like polyurethane, reducing environmental impact and saving resources.

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Smart Images

  • Figure PCTCN2024110627-FTAPPB-I100001
    Figure PCTCN2024110627-FTAPPB-I100001
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    Figure PCTCN2024110627-FTAPPB-I100002
  • Figure PCTCN2024110627-FTAPPB-I100003
    Figure PCTCN2024110627-FTAPPB-I100003
Patent Text Reader

Abstract

Provided are a polymeric dispersion, a process, and a polyurethane prepared from a reaction system comprising an isocyanate and the polymeric dispersion.
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