Patent ID: 8507711

Claim:
The flame-retardant compound that has a structure represented by formula (2): (Ar 2 —O—CO—O—) n A 2 -X-A 1 (—O—CO—O—Ar 1 ) m (2) wherein A 1 and A 2 each independently represents a substituted or unsubstituted aromatic group; X represents a divalent group represented by —S—, —O—, —CO—, —CN—, —CH 2 —, —C(CH 3 ) 2 —, —CH(CH 3 )—, —NH—, —SO— or —SO 2 —; Ar 1 and Ar 2 each independently represents a substituted or unsubstituted phenyl group; and m represents an integer of 2 to 3, and n represents an integer of 1 to 3.