A Method For Preparing An Activated Lignin Composition
Patent No. EP3609948 (titled "A Method For Preparing An Activated Lignin Composition") was filed by Trespa on Apr 16, 2018. The application was issued on Jul 17, 2024.
Patent Summary
A method for manufacturing high-pressure laminates using a lignin-based resin composition. The method involves preparing a core layer by impregnating paper with a resin mixture containing an activated lignin composition, and then pressing the core layer in a press using elevated temperature and pressure. The activated lignin composition is prepared by reacting formaldehyde with lignin in a controlled pH and temperature environment to introduce methylol groups, which enhances the lignin's reactivity with phenol formaldehyde. The resulting lignin-phenol formaldehyde resin is used to replace traditional synthetic resins in laminate manufacturing.
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EP3609948
- Application Number
- EP18728245A
- Filing Date
- Apr 16, 2018
- Status
- Patent Maintained As Amended
- Jun 14, 2024
- Publication Date
- Jul 17, 2024
- External Links
- Slate, Register , Google Patents