Thermosetting resin having benzoxazine structure and method for producing the same

摘要

The present invention provides a thermosetting resin having a benzoxazine ring structure represented by the following formula (I): wherein X is a residue of a diol compound having a molecular weight or a number average molecular weight in terms of polystyrene measured by GPC of 5,000 or less; Y is a residue of a diamine compound; and n is an integer of 2 to 200.