Patent ID: 6207727
Filing Date: 2001-03-27
Classification: C08F,G03F

Abstract:
A photoinitiator mixture comprisinga) at least one acyl- or diacylphosphine oxide of the formula I ##STR13##whereR.sup.1 is C.sub.1 -C.sub.18 -alkyl, halogen- or C.sub.1 -C.sub.6 -alkoxy-substituted C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.9 -phenylalkyl, phenyl, naphthyl, biphenylyl, mono- or poly-halogen-, --C.sub.1 -C.sub.12 -alkyl- and/or --C.sub.1 -C.sub.12 -alkoxy-substituted phenyl, naphthyl or biphenylyl, or a monovalent, N-, O- or S-containing, 5- or 6-membered heterocyclic radical,R.sup.2 is phenyl, naphthyl, biphenylyl, mono- or poly-halogen-, --C.sub.1 -C.sub.12 -alkyl and/or --C.sub.1 -C.sub.12 -alkoxy-substituted phenyl, naphthyl or biphenylyl, a monovalent, N-, O- or S-containing, 5- or 6-membered heterocyclic radical, C.sub.1 -C.sub.18 -alkoxy, phenoxy, halogen-, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy-substituted phenoxy, benzyloxy, cyclohexyloxy or a group --CO--R.sup.4, or R.sup.2 and R.sup.1 together with the phosphorus form a ring,R.sup.3 is C.sub.1 -C.sub.18 -alkyl, halogen- or C.sub.1 -C.sub.6 -alkoxy-substituted C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.9 -phenylalkyl, phenyl, naphthyl, biphenylyl, mono- or poly-halogen-, --C.sub.1 -C.sub.12 -alkyl and/or --C.sub.1 -C.sub.12 -alkoxy-substituted phenyl, naphthyl or biphenylyl, a monovalent N-, O- or S-containing, 5- or 6-membered heterocyclic radical or a group ##STR14##where X is C.sub.2 -C.sub.8 -alkylene, cyclohexylene or unsubstituted or halogen-, C.sub.1 -C.sub.4 -alkyl- or C.sub.1 -C.sub.4 -alkoxy-substituted phenylene or biphenylene, andR.sup.4 is C.sub.1 -C.sub.18 -alkyl, halogen- or C.sub.1 -C.sub.4 -alkoxy-substituted C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.9 -phenylalkyl, phenyl, naphthyl, biphenylyl, mono- or poly-halogen-, --C.sub.1 -C.sub.12 -alkyl- and/or --C.sub.1 -C.sub.12 -alkoxy-substituted phenyl, naphthyl or biphenylyl or a monovalent, N-, O- or S-containing, 5- or 6-membered heterocyclic radical, or R.sup.4 and R.sup.3 together are C.sub.2 -C.sub.12 -alkylene, vinylene or o-phenylene,andb) at least one benzophenone derivative of the formula ##STR15##where R.sup.5, R.sup.6 and R.sup.7 independently are C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkoxy, halogen or C.sub.2 -C.sub.6 -alkoxycarbonyl and R.sup.8, R.sup.9 and R.sup.10 are hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen or C.sub.2 -C.sub.6 -alkoxycarbonyl or C.sub.1 -C.sub.4 -alkylthioor a mixture of benzophenone derivatives of the formula II with other benzophenone derivatives.