公开(公告)号：US5066790A

公开(公告)日：1991-11-19

申请号：US460989

申请日：1990-01-04

申请人： Wolfgang G. Glasser ,  Willer De Oliveira ,  Stephen S. Kelley ,  Li S. Nieh

发明人： Wolfgang G. Glasser ,  Willer De Oliveira ,  Stephen S. Kelley ,  Li S. Nieh

IPC分类号： C08G59/04

CPC分类号： C08H6/00 ,  C08G59/04

摘要： A method of producing prepolymeric materials from lignin is disclosed. The method uses lignin which has been hydroxyalkyl modified, such that the lignin is substantially non-phenolic and solvent soluble and/or liquid. The modified lignin is reacted with materials which yield prepolymers which may be polymerized according to known methods to produce useful polymers.