C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/53 (2006.01) C07F 9/655 (2006.01) C08F 2/50 (2006.01) G03F 7/029 (2006.01)
Patent
CA 2157342
Alkoxyphenyl-substituted bisacylphosphine oxides of the formula I Image (I), in which R1 and R2 are identical or different and are a radical of the formula II Image (II) in which R4 and R5 independently of one another are C1-C12alkyl or C1-C12alkoxy, and R6, R7 and R8 independently of one another are hydrogen, C1-C12alkyl, C1-C12alkoxy or halogen, R3 is a radical of the formula III Image (III) in which R9 is C1-C20alkyl, C2-C20alkyl, C5-C6cycloalkyl, phenyl, naphthyl, phenyl-C1-C5alkyl, C2-C12alkenyl, -CF3 or Image , or R9 is a radical of the formula IV or V Image (IV) Image (V) in which X is for example C1-C16alkylene, C4-C12alkenylene or is xylylene, R10 is for example hydrogen, C1-C20alkyl, C2-C12alkenyl, cyclopentyl, cyclohexyl, phenyl with 1 or 2 C1-C4alkyl and/or C1-C4alkoxy groups, or is -OR9, R11 is hydrogen, C1-C20alkyl, C2-C12alkenyl, cyclopentyl, cyclohexyl, phenyl, or is -OR9, or is a radical of the formula VI Image (VI) or R9 and R11 in the formula III together are ethylene, -CH2CR14R15- or -C(CH3)2CH=CH-, or R10 and R11, together with the atoms to which they are attached, for example form a benzene ring, R12 is hydrogen or -OR9, R13 is C1-C4alkyl, R14 and R15 independently of one another are hydrogen, C1-C8alkyl, phenyl or -CH2OR13, or R14 and R15, together with the carbon atom to which they attached, form a C5-C6cycloalkyl ring, Y is for example a single bond, -CR16Rl7- or -CH=CH-, R16 is hydrogen, methyl or ethyl, R17 is hydrogen or C1-C4alkyl, R18 is hydrogen, C1-C12alkyl or phenyl, and m is a number from 2-12, with the proviso that if the radical -OR9 in the formula III is in the p-position of the phenyl ring and R9 is methyl, at least one of the radicals R10, R11 and R12 is not hydrogen, are suitable for the photopolymerization of compounds containing ethylenically unsaturated bonds.
Kohler Manfred
Leppard David George
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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