Patent ID: 8063115
Filing Date: 2011-11-22
Classification: C08F,C09D,Y10S

Abstract:
1. A radiation curable composition comprising a curable compound, a photo-initiator and a co-initiator, wherein said co-initiator has a structure according to Formula III wherein L″ represents a divalent linking group positioning the nitrogen atom of the aromatic amine and the nitrogen of the aliphatic amine in a 1-10 to 1-23 position; R1, R2, R3 and R4 independently represent a hydrogen or a substituent; R5 and R6 independently represent an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group, an optionally substituted (hetero)aralkyl group, an optionally substituted cycloalkyl group or an optionally substituted (hetero)aryl group; R7 and R8 independently represent an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group, an optionally substituted (hetero)aralkyl group or an optionally substituted cycloalkyl group; X represents O, S or NR11 wherein R11 represents a hydrogen, an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group, an optionally substituted (hetero)aralkyl group, an optionally substituted cycloalkyl group or an optionally substituted (hetero)aryl group; R9 and R10 independently represent a hydrogen, an optionally substituted alkyl group, an optionally substituted alkenyl group, an optionally substituted alkynyl group, an optionally substituted (hetero)aralkyl group, an optionally substituted cycloalkyl group or an optionally substituted (hetero)aryl group; R6 and R5, R1 and R2, R3 and R4 may represent the necessary atoms to form a ring; any combinations of two groups selected from R7 to R10 or from R5, R6, R2 and R4 may represent the necessary atoms to form a ring; any of R7 to R10 may represent the necessary atoms to form a ring with one of the atoms of L″; R11 and R1, R11 and R3 may represent the necessary atoms to form a ring; R11 may represent the necessary atoms to form a ring with one of the atoms of L″; R11 and any of R7 to R10 may represent the necessary atom to form a ring; with the proviso that both the aromatic and aliphatic tertiary amine each have at least one alfa-hydrogen.