MODIFIED LIGNIN, EPOXY RESIN, AND METHOD FOR PRODUCING SAME

摘要

The present invention provides a method for producing modified lignin, novel modified lignin and novel epoxy resin, as well as novel bisphenol compounds, and resin compositions including these novel bisphenol compounds and novel epoxy resin. More specifically, the present invention pertains to a method for producing modified lignin including a step for heating lignin in the presence of a polyhydric alcohol and acid catalyst, modified lignin obtained by the production method, epoxy resin obtained from the modified lignin, novel bisphenol compounds, and resin compositions including novel epoxy resin.