Method for producing a flame retardant, flame retardant, use of a flame retardant, and a system
The use of itaconic acid-based polymers as flame retardants addresses environmental and health concerns by releasing CO2 and H2O, ensuring effective flame protection and sustainable use with easy recycling.
WO2026132095A1PCT designated stage Publication Date: 2026-06-25LEONHARD KURZ STIFTUNG & CO KG
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LEONHARD KURZ STIFTUNG & CO KG
- Filing Date
- 2025-12-17
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Existing flame retardants, particularly halogenated ones, pose significant environmental and health risks due to the release of harmful compounds, necessitating the development of environmentally compatible alternatives that maintain effective flame resistance.
Method used
A method involving the production of a flame retardant using itaconic acid-based polymers that release CO2 and H2O upon thermal catalysis, providing effective flame protection while minimizing environmental impact.
Benefits of technology
The itaconic acid-based polymer flame retardant offers high stability, adjustable water solubility, and reduced toxicity, enabling safe and sustainable use with minimal environmental harm, and facilitates easy recycling through water-based separation.
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Smart Images
Figure EP2025087792_25062026_PF_FP_ABST
Abstract
The invention relates to a method for producing a flame retardant, the method comprising at least the following steps: a) providing a reactive mixture comprising a component A that comprises or consists of itaconic acid; b) polymerising the reactive mixture to form a polymer solution, wherein the polymer solution comprises a polymer which is at least partially dissolved in a solvent and which comprises itaconic acid selected from a range of 25 wt.% to 99.95 wt.%; c) obtaining a flame retardant comprising the polymer, wherein CO2 can be released from the polymer of the flame retardant by thermally catalysed decarboxylation. The invention also relates to a flame retardant, the use of the flame retardant, and a system comprising a substrate and the flame retardant.
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