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1. (WO2018219954) METHOD FOR THE PREPARATION OF A LIGNIN PREPOLYMER

Pub. No.:    WO/2018/219954    International Application No.:    PCT/EP2018/064077
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: C08L 97/00
C09D 197/00
C08H 7/00
Applicants: ANNIKKI GMBH
Inventors: WALLISCH, Kerstin
KNAUS, Simone
Title: METHOD FOR THE PREPARATION OF A LIGNIN PREPOLYMER
Abstract:
The present invention relates to a method for the preparation of a lignin prepolymer, comprising (a) providing a lignin; (b) reacting the lignin with a hydroxyl functionalization reagent to provide a lignin derivative containing at least one hydroxyl group, said hydroxyl group being obtained as a result of the interaction between the lignin and the hydroxyl functionalization reagent (c) reacting the lignin derivative obtained in step (b) with a functionalization reagent selected from the group consisting of fatty acids, fatty acid derivatives and mixtures thereof capable to react with the lignin derivative resulting in a covalent bond between the fatty acid and/or the fatty acid derivative and the lignin derivative.