Method for the efficient enzymatic degradation of aromatic polycarbonates

WO2025242591A1PCT designated stage Publication Date: 2025-11-27COVESTRO DEUTSCHLAND AG
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Patent Information

Application Number
PCT/EP2025/063663
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-05-21
Filing Date
2025-05-19
Publication Date
2025-11-27

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Patent Text Reader

Abstract

The present invention relates to an efficient enzymatic method for cleaving aromatic carbonates, shown using the example of the hydrolysis of bisphenol A polycarbonate by means of multiple lipases / cutinases. The order of the method steps plays a significant role, since the addition of a polar, organic solvent to the polycarbonate, shown using the example of DMSO, followed by the addition of the enzyme leads to increased hydrolysis.
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Citation Information

Patent Citations

  • Novel urethanases for the enzymatic decomposition of polyurethanes

    EP3587570A1

  • Fusion protein and application of fusion protein in degrading polymers

    CN112159478A

Cited By

  • New enzymes for cleaving aromatic carbonates

    WO2025242592A3