Abstract: A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in the specification.

Abstract: n and m are independently of one another 0 or 1,R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X are as defined in claim 1,are suitable as photoinitiators for the polymerization of ethylenically unsaturated compounds.

Abstract: Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.

Abstract: Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.

Abstract: Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.

Abstract: Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.

Abstract: The invention relates to a photographic recording material comprising, on a base, at least one silver-halide emulsion layer and, if desired, at least one interlayer and/or a protection layer, where at least one of said layers contains a UV absorber of the 2-hydroxyphenyltriazine type, as described in greater detail in claim 1; this UV absorber can also be in the form of a homopolymer or copolymer.

Abstract: Ethylenically unsaturated polymerisable compounds can be cured with daylight or with light sources equivalent to daylight by using as hardener a photoinitiator of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.12 alkyl, cyclopentyl, cyclohexyl, unsubstituted phenyl, naphthyl or biphenyl,R.sub.2 and R.sub.3 are each independently of the other C.sub.1 -C.sub.12 alkyl,R.sub.4 is hydrogen or C.sub.1 -C.sub.12 alkyl, andR.sub.5 is hydrogen or methyl.

Abstract: The invention relates to ink compositions, in particular for ink-jet printing, containing as stabiliser a water-soluble compound of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, L, M and n are as defined in claim 1, to said compounds and to recording materials containing them, and to a process for stabilising ink-jet prints, the stabiliser being a compound of formula (I) or (II).

Abstract: A photographic material is described which comprises, on a base, blue-sensitive, green-sensitive and/or red-sensitive silver-halide emulsion layers and if desired a protection layer, a layer containing a UV absorber being arranged between the uppermost silver-halide emulsion layer and the protection layer or on top of the uppermost silver-halide emulsion layer, wherein the UV absorber conforms to the formula ##STR1## in which the radicals R.sub.1 and R.sub.12 are as defined in claim 1.

Abstract: Compounds of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.18 alkyl, cyclopentyl or cyclohexyl, and R.sub.2 and R.sub.3, independently of one another, are phenyl which is unsubstituted or monosubstituted to tetrasubstituted by halogen, C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, with the proviso that R.sub.1 is not decyl if R.sub.2 and R.sub.3 are chlorine-substituted phenyl, are suitable for the photopolymerisation of compounds containing ethylenically unsaturated double bonds.

Abstract: A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in claim 1.

Abstract: A UV absorber of formula (1a) ##STR1## in which E.sub.1, E.sub.2 and E.sub.3 are independently substituted alkyl or substituted silyl or siloxyl moieties, are useful in protecting photographic materials from the deleterious effects of actinic light.

Abstract: Compounds of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.18 alkyl, cyclopentyl or cyclohexyl, and R.sub.2 and R.sub.3, independently of one another, are phenyl which is unsubstituted or monosubstituted to tetrasubstituted by halogen, C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, with the proviso that R.sub.1 is not decyl if R.sub.2 and R.sub.3 are chlorine-substituted phenyl, are suitable for the photopolymerization of compounds containing ethylenically unsaturated double bonds.

Abstract: Compounds of formula I ##STR1## wherein n is 0 or 1, p is a number from 1 to 8,q is 2 or 3, andR.sub.1 is unsubstituted phenyl or phenyl which is substituted by one to three halogen, C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 alkoxy, C.sub.2 -C.sub.8 alkoxyalkyl or/and C.sub.1 -C.sub.4 alkylthio, are suitable for use as initiators for photopolymerising compounds containing ethylenically unsaturated double bonds.

Abstract: A photographic material is described which comprises, on a base, blue-sensitive, green-sensitive and/or red-sensitive silver-halide emulsion layers and if desired a protection layer, a layer containing a UV absorber being arranged between the uppermost silver-halide emulsion layer and the protection layer or on top of the uppermost silver-halide emulsion layer, wherein the UV absorber conforms to the formula ##STR1## in which the radical R.sub.1 is alkyl, substituted alkyl, alkenyl, glycidyl, cycloalkyl or phenylalkyl, and R.sub.12 is alkyl, benzyl, cyclohexyl, phenyl, substituted phenyl or alkoxy.

Abstract: A photographic material is described which comprises, on a base, blue-sensitive, green-sensitive and/or red-sensitive silver-halide emulsion layers and, if desired, a protection layer, a layer containing a UV absorber being arranged between the uppermost silver-halide emulsion layer and the protection layer, or on top of the uppermost silver-halide emulsion layer, wherein the UV absorber conforms to the formula ##STR1## in which the radicals E.sub.1, E.sub.2 and E.sub.3 are independently alkyl, substituted alkyl, alkenyl, glycidyl, cycloalkyl, phenylalkyl or siloxyl.

Abstract: Compounds of formula ##STR1## wherein R.sub.1 is hydrogen, alkyl, phenylalkyl or cyclohexyl, R.sub.2 is alkyl, phenylalkyl, cyclohexyl, alkoxy or hydroxyalkoxy, and R.sub.3 is phenyl or substituted phenyl, are very suitable for use as UV absorbers in photographic materials with transparent substrates.

Abstract: The novel compounds of formula ##STR1## wherein n and R are as defined in claim 1, are very suitable for use as UV absorbers in layers of photographic materials.

Abstract: Compounds of the formula ##STR1## in which R is hydrogen or hydroxyl, R.sub.1 is alkyl, alkoxy, amino or aryl, and R.sub.2 is hydrocarbylcarbonyl or hydrocarbylsulfonyl, are highly suitable for stabilizing magenta couplers in photographic materials.