Patent ID: 8765012

Claim:
A thermosetting composition comprising: an organic solvent; a liquid crystalline thermoset oligomer; and a crosslinking agent having crosslinkable reactive groups at both ends thereof; and optionally an epoxy compound; wherein the liquid crystalline thermoset oligomer is represented by Formula 1: Z 1 R 1 n R 2 m Z 2 (1) wherein R 1 is represented by Formula 2: —X 1 —Ar 1 —Y 1 — (2) wherein X 1 and Y 1 are each independently selected from the group consisting of —O—, —C(O)—, —NR″, and any combination thereof, wherein R″ is selected from the group consisting of a hydrogen atom, substituted or unsubstituted C 1 -C 20 alkyl groups, substituted or unsubstituted C 6 -C 30 aryl groups, and any combination thereof, and Ar 1 contains at least one divalent aromatic or alicyclic organic group selected from the group consisting of: and any combination thereof, wherein at least one of the carbon atoms present in each of the aromatic and alicyclic rings is optionally replaced by a heteroatom selected from the group consisting of N, O, S, P, and any combination thereof, and A 1′ represents a single bond or is —O—, —S—, —C(O)—, —S(O)—, —S(O) 2 —, a divalent aliphatic or aromatic organic group, or any combination thereof; R 2 is represented by Formula 6: X 2 —Ar 3 —Y 2 (6) wherein X 2 and Y 2 are each independently selected from the group consisting of —O—, —C(O)—, —NR″, and any combination thereof, wherein R″ is selected from the group consisting of a hydrogen atom, substituted or unsubstituted C 1 -C 20 alkyl groups, substituted or unsubstituted C 6 -C 30 aryl groups, and any combination thereof, and Ar 3 contains at least one divalent aromatic selected from the group consisting of: and any combination thereof, wherein the aromatic rings contain only carbon atoms, or wherein at least one of the carbon atoms present in each of the aromatic rings is replaced by a heteroatom selected from the group consisting of N, O, S, P, and any combination thereof, and A 2 represents a single bond or is —N 2 —, —O—, —S—, —C(O)—, —S(O)—, —S(O) 2 —, a divalent aliphatic or aromatic organic group, and any combination thereof; Z 1 and Z 2 are each independently a thermally crosslinkable reactive group having a terminal multiple bond, and m and n are each independently an integer from about 1 to about 50.