Patent ID: 8569393
Filing Date: 2013-10-29
Classification: G03F

Abstract:
1. A free radical radiation curable composition for UV LED curing comprising: at least one co-initiator selected from the group consisting of an aliphatic tertiary amine and a dialkyl aniline derivative; and at least one photoinitiator according to Formula (I): wherein, R1 and R2 are independently selected from the group consisting of an aromatic or heteroaromatic group and a substituent according to Formula (II): R3 is selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an alkaryl group, and an aryl or heteroaryl group; S Y represents O or NR5; R4 and R5 are selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an alkaryl group, and an aryl or heteroaryl group; n and m independently represent an integer from 1 to 3; and X and Z represent O; and at least one of R1 and R2 is represented by a substituent according to Formula (II).