Patent ID: 6492514
Filing Date: 2002-12-10
Classification: C07C,C07D,C08F,C09D

Abstract:
Compounds useful as photoinitiators for photopolymerization, having formula (I) wherein X1 and X2 are different,X1 is a group whereinR1 and R2, each independently, are â€”H or C1-C12 linear or branched or cyclic alkyl chain, aryl, alkylaryl groups, Z1 is â€”SO2R3, â€”NR4R5 â€”OR1, halogen, R3 is: C1-C12 linear or branched alkyl chain, or: whereinR5, R7, R8, R9 and R10 each independently, are â€”H, C1-C12 linear or branched or cyclic alkyl chain, aryl group â€”OR11, hydroxyalkyloxy-, hydroxyalkylthio-, â€”SR11, â€”S&boxH;OR12, â€”SO2R13, â€”C&boxH;OR14, â€”NR15R16, â€”CN, -halogen; R11, is â€”H, C1-C12 linear or branched alkyl chain, aryl group, R12 is C1-C12 linear or branched alkyl chain, aryl group, R13 is C1-C12 linear or branched alkyl chain, aryl group, â€”OH, â€”OAlkyl, â€”NH2 â€”NHAlkyl, â€”N(Alkyl)2â€”NHAryl, â€”N(Aryl)2, R14 is â€”H, C1-C12 linear or branched alkyl chain, aryl group, â€”OH, â€”OAlkyl, â€”NH2, â€”NHAlkyl, â€”N(Alkyl)2, â€”NHAryl, â€”N(Aryl)2, R15 and R16, each independently, are â€”H, C1-C12 linear or branched alkyl chain, aryl group, COR1, or, if coincident, represent C2-C6 oxa-, thia- or aza-alkylene, R4 and R5, each independently, are â€”H, C1-C12 linear or branched alkyl chain, aryl group, COR1 or, R4 and R5 together represent C2-C6 alkylene, C2-C6 oxa-, thia- or aza-alkylene, X2 is a group wherein R6, R7, R8, R9, R10 have the above-mentioned meanings or a group whereinR1, R2 have the above mentioned meanings, and Z2 has the same meaning as Z1 provided that X2 is different from X1, Y is: â€”O, â€”Sâ€”, >S&boxH;O, >SO2, â€”NR17â€” wherein R17 is â€”H, C1-C12 linear or branched alkyl chain, aryl group or COR1.