| 主权项 |
1. A photo-curable coating composition comprising (1) a polyfunctional (meth)acrylic monomer, (2) a photopolymerization initiator, and (3) a hydroxyphenyltriazine base UV absorber having the general formula (1): wherein Y1 and Y2 are each independently a substituent having the general formula (2): wherein * designates a bonding site, r is 0 or 1, R1, R2 and R3 are each independently hydrogen, or hydroxyl, C1-C20 alkyl, C4-C12 cycloalkyl, C2-C20 alkenyl, C1-C20 alkoxy, C4-C12 cycloalkoxy, C2-C20 alkenyloxy, C7-C20 aralkyl, halogen, —C≡N, C1-C5 haloalkyl, —SO2R′, —SO3H, —SO3M wherein M is an alkali metal, —COOR′, —CONHR′, —CONR′R″, —OCOOR′, —OCOR′, —OCONHR′, (meth)acrylamino, (meth)acryloxy group, optionally substituted C6-C12 aryl or optionally substituted C3-C12 heteroaryl group, wherein R′ and R″ are independently hydrogen, C1-C20 alkyl, C4-C12 cycloalkyl, optionally substituted C6-C12 aryl or optionally substituted C3-C12 heteroaryl group, X is a divalent, straight or branched, saturated hydrocarbon residue which may be separated by at least one atom selected from oxygen, nitrogen, sulfur, and phosphorus, T is a urethane group: —O—(C═O)—NH—, Q is a divalent, straight or branched, saturated hydrocarbon residue which may be separated by at least one atom selected from oxygen, nitrogen, sulfur, and phosphorus, and P is a (meth)acryloxy group. |
