Process for producing a lignocellulosic composite, mixture for use in said process, respective product and uses

A process using heated lignocellulosic particles and an aqueous binder of polylysines and reducing sugars produces lignocellulosic composites with enhanced mechanical properties and low moisture sensitivity, addressing the limitations of existing methods by leveraging renewable resources effectively.

WO2026131998A1PCT designated stage Publication Date: 2026-06-25BASF SE
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
BASF SE
Filing Date
2025-12-17
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing processes for producing lignocellulosic composites face challenges in achieving satisfactory mechanical properties and low moisture swelling while using binder components derived from non-petrochemical, renewable resources, without complex and energy-intensive pre-reactions.

Method used

A process involving lignocellulosic particles heated to 30-80°C, combined with an aqueous binder composition containing polylysines and reducing sugars, followed by application of heat and pressure to harden the binder, resulting in a lignocellulosic composite with improved internal bond strength and reduced moisture swelling.

Benefits of technology

The process enables the production of high-quality lignocellulosic composites with sufficient internal bond strength and low moisture sensitivity, using renewable resources efficiently and economically on an industrial scale.

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Abstract

Described herein is a process for producing a lignocellulosic composite involving the use of lignocellulosic particles that have been set to a temperature in the range of from ≥ 30 °C to ≤ 80 °C, and a mixture, comprising an aqueous binder composition, for use in said process. Further is described a lignocellulosic composite which can be produced by the process of the invention, and its use.
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