公开(公告)号：US11643508B2

公开(公告)日：2023-05-09

申请号：US16616013

申请日：2018-05-29

申请人： ANNIKKI GMBH

发明人： Kerstin Wallisch ,  Simone Knaus

IPC分类号： C08H7/00 ,  C08L97/00 ,  C09D197/00

CPC分类号： C08H6/00 ,  C08L97/005 ,  C09D197/005

摘要： 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 or the fatty acid derivative and the lignin derivative.