Compounds of the formula I or I' [ STR 1 ] in which R.sub.1 and R.sub.2 independently of one another, for example, are an aromatic hydrocarbon, with the proviso that the aromatic hydrocarbon radical is substituted in at least one o-position, or R.sub.1 and R.sub.2, for example, independently of one
Compounds of the formula I or I' [ STR 1 ] in which R.sub.1 and R.sub.2 independently of one another, for example, are an aromatic hydrocarbon, with the proviso that the aromatic hydrocarbon radical is substituted in at least one o-position, or R.sub.1 and R.sub.2, for example, independently of one another are C.sub.1 -C.sub.20 alkyl, which is substituted by R.sub.9 R.sub.10 R.sub.11 Si; R.sub.2a is, for example, a divalent aromatic hydrocarbon radical; R.sub.3 is C.sub.1 -C.sub.20 alkyl which is substituted by R.sub.9 R.sub.10 R.sub.11 Si or is an aromatic hydrocarbon; R.sub.4 is, for example, C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.6 alkyl; E is R.sub.14 R.sub.15 R.sub.16 P or R.sub.8 R.sub.8a R.sub.7 N; R.sub.7, R.sub.8 and R.sub.8a and R.sub.9, R.sub.10 and R.sub.11 independently of one another are, for example, C.sub.1 -C.sub.12 alkyl; R.sub.14, R.sub.15 and R.sub.16 independently of one another are substituted phenyl and G is a radical which is able to form positive ions, with the proviso that, if R.sub.1, R.sub.2 and R.sub.3 are 2,4,6-trimethylphenyl, R.sub.4 is not C.sub.2 -C.sub.20 alkyl or C.sub.2 -C.sub.8 alkenyl, are suitable for use as particularly reactive photoinitiators.
대표청구항▼
[ What is claimed is:] [1.] A composition comprising(a) at least one ethylenically unsaturated photopolymerizable compound and(b) at least one compound of the formula Ia or Ia' [ STR 35 ] in which R.sub.1 and R.sub.2 independently of one another are phenyl or another aromatic hydrocarbon, with or wi
[ What is claimed is:] [1.] A composition comprising(a) at least one ethylenically unsaturated photopolymerizable compound and(b) at least one compound of the formula Ia or Ia' [ STR 35 ] in which R.sub.1 and R.sub.2 independently of one another are phenyl or another aromatic hydrocarbon, with or without any heteroatom, which radicals are unsubstituted or are substituted 1-5 times by C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkyl which is interrupted by one or more radicals O, S(O).sub.p or NR.sub.5, or are substituted by OR.sub.6, R.sub.6 S(O).sub.p, R.sub.6 S(O).sub.2 O, R.sub.7 R.sub.8 N, R.sub.6 OC(O), R.sub.7 R.sub.8 NC(O), R.sub.9 C(O), R.sub.9 R.sub.10 R.sub.11 Si, R.sub.9 R.sub.10 R.sub.11 Sn, R.sub.12 R.sub.13 B, halogen, R.sub.9 R.sub.10 P(O).sub.q, and/or CN,with the proviso that the phenyl radical or the other aromatic hydrocarbon radicals are substituted in at least one o-position, or R.sub.1 and R.sub.2 independently of one another are C.sub.1 -C.sub.20 alkyl which is substituted by R.sub.9 R.sub.10 R.sub.11 Si, or the radicals R.sub.1 and R.sub.2 form bridges to produce structures of the formula II, IIa or IIb [ STR 36 ] where the aromatic rings in the formulae II, IIa or IIb are unsubstituted or are substituted by C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkyl which is interrupted by one or more radicals O, S(O).sub.p or NR.sub.5 or are substituted by OR.sub.6, R.sub.6 S(O).sub.p, R.sub.6 S(O).sub.2 O, R.sub.7 R.sub.8 N, R.sub.6 OC(O), R.sub.7 R.sub.8 NC(O), R.sub.9 C(O), R.sub.9 R.sub.10 R.sub.11 Si, R.sub.9 R.sub.10 R.sub.11 Sn, halogen, R.sub.9 R.sub.10 P(O).sub.q and/or R.sub.12 R.sub.13 B;R.sub.2a is phenylene or another divalent aromatic hydrocarbon, with or without any heteroatom, which radicals are unsubstituted or are substituted 1-5 times by C.sub.1 -C.sub.20 alkyl, C.sub.2- C.sub.20 alkyl which is interrupted by one or more radicals O, S(O).sub.p or NR.sub.5, or are substituted by OR.sub.6, R.sub.6 S(O).sub.p, R.sub.6 S(O).sub.2 O, R.sub.7 R.sub.8 N, R.sub.6 OC(O), R.sub.7 R.sub.8 NC(O), R.sub.9 C(O), R.sub.9 R.sub.10 R.sub.11 Si, R.sub.9 R.sub.10 R.sub.11 Sn, R.sub.12 R.sub.13 B, halogen, R.sub.9 R.sub.10 P(O).sub.q, and/or CN, or R.sub.2a is phenyl-C.sub.1 -C.sub.6 akylene; andR.sub.3 ' is R.sub.9 R.sub.10 R.sub.11 Si-substituted C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.4 alkyl, phenyl or another aromatic hydrocarbon, with or without any heteroatom, where the phenyl radical or the other aromatic hydrocarbon radicals are unsubstituted or are substituted 1-5 times by C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkyl which is interrupted by one or more radicals O, S(O).sub.p or NR.sub.5, or are substituted by OR.sub.6, R.sub.6 S(O).sub.p, R.sub.6 S(O).sub.2 O, R.sub.7 R.sub.8 N, R.sub.6 OC(O), R.sub.7 R.sub.8 NC(O), R.sub.9 C(O), R.sub.9 R.sub.10 R.sub.11 Si, R.sub.9 R.sub.10 R.sub.11 Sn, R.sub.12 R.sub.13 B, halogen, R.sub.9 R.sub.10 P(O).sub.q and/or CN;R.sub.4 is phenyl, another aromatic hydrocarbon, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkyl which is interrupted by one or more radicals O, S(O).sub.p or NR.sub.5, or is C.sub.3 -C.sub.12 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, phenyl-C.sub.1 -C.sub.6 alkyl or naphthyl-C.sub.1 -C.sub.3 alkyl, where the radicals phenyl, another aromatic hydrocarbon, C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.12 cycloalkyl, C.sub.2 -C.sub.8 alkenyl, phenyl-C.sub.1 -C.sub.6 alkyl or naphthyl-C.sub.1 -C.sub.3 alkyl are unsubstituted or are substituted by OR.sub.6, R.sub.6 S(O).sub.p, R.sub.6 S(O).sub.2 O, R.sub.7 R.sub.8 N, R.sub.6 OC(O), R.sub.7 R.sub.8 NC(O), R.sub.9 C(O), R.sub.9 R.sub.10 R.sub.11 Si, R.sub.9 R.sub.10 R.sub.11 Sn, R.sub.12 R.sub.13 B, halogen, R.sub.9 R.sub.10 P(O).sub.q, and/or CN;E is R.sub.14 R.sub.15 R.sub.16 P, R.sub.6 R.sub.6a S or R.sub.8 R.sub.8a R.sub.7 N;Y is (CH.sub.2).sub.n, CH.dbd.CH, C(O), NR.sub.5, O, S(O).sub.p or [ STR 37 ] n is 0, 1 or 2; m is 2 or 3;p is 0, 1 or 2;q is 0 or 1;R.sub.5 is hydrogen, C.sub.1 -C.sub.12 alkyl, phenyl-C.sub.1 -C.sub.6 alkyl or phenyl, where the radicals phenyl-C.sub.1 -C.sub.6 alkyl or phenyl are unsubstitued or are substituted 1-5 times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy and/or halogen;R.sub.6 and R.sub.6a independently of one another are C.sub.1 -C.sub.12 alkyl, phenyl-C.sub.1 -C.sub.6 alkyl or phenyl, where the radicals phenyl-C.sub.1 -C.sub.6 alkyl or phenyl are unsubstituted or are substituted 1-5 times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy and/or halogen;R.sub.7, R.sub.8 and R.sub.8a independently of one another are C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.6 alkyl or phenyl where the radicals phenyl-C.sub.1 -C.sub.6 alkyl or phenyl are unsubstituted or are substituted 1-5 times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy, R.sub.6 OC(O), CN and/or halogen or R.sub.7 and R.sub.8 together with the N atom to which they are attached, form a 5- or 6-membered ring which may additionally contain O or S atoms;R.sub.9, R.sub.10 and R.sub.11 independently of one another are C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.6 alkyl or phenyl, where the radicals phenyl-C.sub.1 -C.sub.6 alkyl or phenyl are unsubstituted or are substituted 1-5-times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy and/or halogen;R.sub.12 and R.sub.13 independently of one another are C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.6 alkyl or phenyl where the radicals phenyl-C.sub.1 -C.sub.6 alkyl or phenyl are unsubstituted or are substituted 1-5 times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy and/or halogen, or R.sub.12 and R.sub.13, together with the B atom to which they are attached, form a 5- or 6-membered ring;R.sub.14, R.sub.15 and R.sub.16 independently of one another are C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl, C.sub.3 -C.sub.12 cycloalkyl, where the radicals C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl, C.sub.3 -C.sub.12 cycloalkyl are unsubstituted or are substituted by R.sub.6 OCO or CN, or R.sub.14, R.sub.15, and R.sub.16 are phenyl-C.sub.1 -C.sub.6 alkyl, which is unsubstituted or is substituted one to five times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy or halogen, or are phenyl which is unsubstituted or is substituted one to five times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.12 alkoxy or halogen; andG is a radical which is able to form positive ions,with the proviso that,if R.sub.1, R.sub.2 and R.sub.3, are 2,4,6-trimethylphenyl, R.sub.4 is not C.sub.2 -C.sub.20 alkyl or C.sub.2 -C.sub.C.sub.8 alkenyl.
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