Patent ID: 7927671

Claim:
A compound represented by Formula (1): wherein in Formula (1), R a is independently any of the groups represented by Formulas (2-1) to (2-6); A is independently 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, naphthalene-2,6-diyl, tetrahydronaphthalene-2,6-diyl, fluorene-2,7-diyl or bicyclo[2.2.2]octane-1,4-diyl; in these rings, optional —CH 2 — may be replaced by —O—, optional —CH═ may be replaced by —N═ and optional hydrogens may be replaced by halogen, alkyl having 1 to 5 carbon atoms or halogenated alkyl having 1 to 5 carbon atoms; Z is independently a single bond or alkylene having 1 to 20 carbon atoms; in the alkylene, optional —CH 2 — may be replaced by —O—, —CO—, —COO—, —OCO—, —CH═H—, —CF═CF— or —C≡C— and optional hydrogen may be replaced by halogen; Y is independently a single bond or alkylene having 1 to 20 carbon atoms; in the alkylene, optional —CH 2 — may be replaced by —O—, —CO—, —COO—, —OCO—, —OCOO— or —CH═CH— and optional hydrogen may be replaced by halogen; m and n are independently an integer of 0 to 5; when all R a are methacryloyloxy groups, excluded is a case in which m=n=1, two A are 1,4-phenylene, two Z are single bonds, two Y adjacent to A are —(OCH 2 ) 4 — or —(OCH 2 CH 2 ) 1-10 — and remaining Y is —CH 2 CH 2 —; and wherein in Formulas (2-1) to (2-6), R b is independently hydrogen, halogen or alkyl having 1 to 5 carbon atoms, and optional hydrogen in the alkyl may be replaced by halogen.