Phenyl ketone derivatives
AssigneeCiba-Geigy Corporation
InventorsRinaldo Husler, Rudolf Kirchmayr, Werner Rutsch
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Abstract
Compounds of the formula I, II or III ##STR1## in which Ar and Ar' are an oxygen-containing aromatic radical, R.sup.1 and R.sup.2 are a monovalent hydrocarbon radical which is substituted or unsubstituted, or R.sup.1 and R.sup.2 together form alkylene, oxaalkylene or azaalkylene, R.sup.3 is a direct bond or a divalent hydrocarbon radical, X and X' are a monovalent amino group and Y is a divalent amino or diamino group, are excellent photoinitiators for the photocuring of colored, especially pigmented, compositions containing an olefinically unsaturated, photopolymerizable binder.
Claims6
A compound of formula I ##STR38## in which Ar is an oxygen-containing aromatic radical of formula IV ##STR39## wherein R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.12 -alkenyl, C.sub.5 -C.sub.6 -cycloalkyl, phenyl, --OH or --OR.sup.9, with the proviso that at least one of the radicals R.sup.4 to R.sup.8 is an --OR.sup.9 group,
- R.sup.9 is C.sub.1 -C.sub.12 -alkyl, phenyl, C.sub.7 -C.sub.9 -phenylalkyl or said phenyl substituted by C.sub.1 -C.sub.4 -alkyl or by C.sub.1 -C.sub.4 -alkoxy,
- X is morpholino or --N(C.sub.2 -C.sub.4 -alkyl substituted by C.sub.1 -C.sub.4 -alkoxy).sub.2, and
- R.sub.1 and R.sup.2 independently of one another are each C.sub.1 -C.sub.8 -alkyl, or R.sub.1 and R.sup.2 together are C.sub.5-C.sub.8 -alkylene, or
- an acid addition salt of such a compound.
Dependencies are inferred from the claim text.