Patent ID: 8338499
Filing Date: 2012-12-25
Classification: C08F

Abstract:
1. A radiation curable composition comprising a curable compound, a photo-initiator and at least one co-initiator, wherein said at least one co-initiator is represented by Formula I, wherein one of the two nitrogen atoms shown in Formula I, together with R2, R3, and L, forms a first aliphatic tertiary amino group and the other of the two nitrogen atoms shown in Formula I, together with L, MA and R1, forms a second aliphatic tertiary amino group; wherein MA is a Michael acceptor residue formed by a Michael reaction of a Michael acceptor having 1 to 6 activated double bonds with an amine of the formula: L is an C2 to C6 aliphatic divalent linking group which links the two nitrogen atoms in Formula I in a 1-3 to 1-10; n is an integer ranging from 1 to 6; wherein R1, R2 and R3 in Formula I represent a C1 to C5 alkyl group; the Michael acceptor is selected from the group consisting of (meth)acrylates, (meth)acrylamides, vinyl sulfones, vinyl phosphonates, vinyl sulfonates, vinyl sulfonamides, maleimides, vinyl nitriles, vinyl ketones, vinyl aldehydes and vinyl sulfoxides.