Patent ID: 7763700

Claim:
An epoxy resin curing composition comprising a compound having a benzoxazole structure represented by general formula (I): wherein X 1 and X 2 , which may be the same or different, each independently represent a hydrogen atom, a substituent having a phenolic hydroxyl group, or a substituent having an epoxy group, with proviso that X 1 and X 2 do not represent a hydrogen atom at the same time; Y 1 represents an oxygen atom or a sulfur atom; Z 1 represents a substituted or unsubstituted hydrocarbon group having 1 to 8 carbon atoms or a substituted or unsubstituted alkoxy group having 1 to 8 carbon atoms; m represents an integer of 0 to 4; when m is 2 to 4, a plurality of Z 1 s may be the same or different; n represents an integer of 0 to 2; and A 1 represents a hydrogen atom, a substituent having a phenolic hydroxyl group or a substituent having an epoxy group, wherein either one of X 1 and X 2 in general formula (I) is represented by general formula (Ia): wherein Y 1 represents an oxygen atom or a sulfur atom; Z 1 represents a substituted or unsubstituted hydrocarbon group having 1 to 8 carbon atoms or a substituted or unsubstituted alkoxy group having 1 to 8 carbon atoms; m represents an integer of 0 to 4; when m is 2 to 4, a plurality of Z 1 s may be the same or different; n represents an integer of 0 to 2; and A 1 represents a hydrogen atom, a substituent having a phenolic hydroxyl group or a substituent having an epoxy group.