2016-08-242016-08-241992-04-07http://hdl.handle.net/10919/72663A 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.application/pdfen-USPatenthttp://pimg-fpiw.uspto.gov/fdd/92/029/051/0.pdf7569550527/400530/502C08H6/00C08G59/045102992