LOW-MIGRATION, LOW EXTRACTABLE POLYMERIC PHOTOINITIATOR FOR FOOD PACKAGING APPLICATIONS

The present invention relates to a compound having the following general formula (I):wherein:R1 is a polymer,X is a bond or a non-hydrolysable linking group, e.g. O, S, an urethane group, a urea group, an amide group, CH2-CH=CH, NH or NR7, with R7 being a branched or linear C1-10-alkyl group, or a branched or linear C1-10-alkenyl group,m is an integer between 1 and 20,n is an integer between 0 and 10,R2 to R6 are independently from each other selected from H, a branched or linear C1-10-alkyl group, or a branched or linear C1-10-alkenyl group, provided that one or two of the groups R2 to R6 have the following general formula (II):whereinone or two of the groups R8 to R12 have the below general formula (III), wherein all of the remaining R8 to R12 are independently from each other selected from H, a branched or linear C1-10-alkyl group, or a branched or linear C1-10-alkenyl group, C(O)-R13- (III),wherein:R13 has the following general formula (IV):wherein:R14, R15 and R18 are independently from each other selected from H, a branched or linear C1-10-alkyl group, and a branched or linear C1-10-alkenyl group,R16 and R17 are independently from each other selected from H, a branched or linear C1-10-alkyl group, and a branched or linear C1-10-alkenyl group or wherein R16 and R17 are linked together to form a group comprising one or two rings, wherein this group is fused via one of the one or two rings to the group R13, wherein if the group comprises two rings the two rings are fused together, wherein each of the one or more rings is a substituted or unsubstituted five- or six-membered alicyclic hydrocarbon ring, a substituted or unsubstituted five- or six-membered aromatic hydrocarbon ring or a substituted or unsubstituted five- or six-membered heterocyclic ring, andwherein furthermore one of R14 and R18 may be a bond and one of R8 to R12 being adjacent to the one or two of the groups R8 to R12 having the general formula (III) may be a bond being connected with the bond of R14 or R18 directly or by means of O, S, NH, NR7 with R7 being as defined above or C(O).