Patent ID: 8802318

Claim:
A compound comprising a polymerization product of a composition that contains a diisocyanate-based compound represented by Formula 1 below and an aromatic polyol represented by Formulae 4-8 below: wherein A 1 and A 2 are each independently a substituted or unsubstituted C1-C30 alkylene group, a substituted or unsubstituted C2-C30 alkenylene group, a substituted or unsubstituted C2-C30 alkynylene group, a substituted or unsubstituted C6-C30 arylene group, a substituted or unsubstituted C2-C30 heteroarylene group, a substituted or unsubstituted C4-C30 carbon cyclic group, or a substituted or unsubstituted C6-C30 condensed polycyclic group, m is 0 or 1, R 1 is a hydrogen atom or —P(═O)RR′, R and R′ are each independently a hydrogen atom, a C1-C30 alkyl group, or a C6-C30 aryl group, and L is represented by Formula 1A below: wherein in Formula 1A, R 2 is a C1-C30 alkyl group, a C6-C30 aryl group, a C1-C30 alkoxy group, or a C6-C30 aryloxy group, and