Color-photographic recording material
AssigneeCiba-Geigy Corporation
InventorsDavid G. Leppard, Jean Rody
Life of this patent
Estimating the term…
Abstract
A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains a stabilizer mixture comprising (i) a compound with at least one group of the formula ##STR1## or a polymer with recurring structural units of the formula I, and (ii) a phenolic antioxidant. Color images obtained by imagewise exposure and development of this color-photographic recording material show good stability to the action of visible and ultraviolet light. With respect to the definitions of the substituents in formula I, reference is made to the description.
Claims23
A colour-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains a light stabilizing amount of a stabiliser mixture comprising
- (i) a compound which contains at least one group of the formula I ##STR49## or a polymer, the recurring structural units of which contain a group of the formula I or are linked via a bivalent group corresponding to the formula I, in which R.sub.1 is a free valency and in which, moreover, R is hydrogen or methyl and R.sub.1 is methyl, a group --CH.sub.2 --C(R.sub.2).dbd.C(R.sub.3)(R.sub.4), --CH.sub.2 --C.tbd.C--R.sub.5, ##STR50## --CH.sub.2 --COOR.sub.7, --CH.sub.2 --CON(R.sub.8)(R.sub.9), --COR.sub.10, --COOR.sub.7, --CON(R.sub.8)(R.sub.9), --OR.sub.7, --CH.sub.2).sub.b OCOR.sub.10, --CH.sub.2 --CH(R.sub.11)OR.sub.12, --SOR.sub.13 or --SO.sub.2 R.sub.13, a and b are 0, 1 or 2, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen or C.sub.1 -C.sub.3 -alkyl, R.sub.5 is hydrogen or methyl, R.sub.6 is C.sub.1 -C.sub.4 -alkyl, R.sub.7 is C.sub.1 -C.sub.12 -alkyl, allyl, benzyl or cyclohexyl, R.sub.8 is C.sub.1 -C.sub.12 -alkyl, allyl, cyclohexyl, benzyl or phenyl, R.sub.9 is hydrogen, C.sub.1 -C.sub.12 -alkyl or allyl, or R.sub.8 and R.sub.9, together with the N atom to which they are linked, form a 5-membered or 6-membered heterocyclic ring, and R.sub.10 is hydrogen, C.sub.4 -C.sub.12 -alkyl, C.sub.2 -C.sub.6 alkenyl, chloromethyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.14 -aralkyl or C.sub.7 -C.sub.10 -alkylphenyl, R.sub.11 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.13 -alkoxymethyl, phenyl or phenoxymethyl, R.sub.12 is hydrogen, C.sub.1 -C.sub.12 -alkyl, --COR.sub.10 or --CON(R.sub.8)(R.sub.9) R.sub.8, R.sub.9 and R.sub.10 being as defined above, and R.sub.13 is C.sub.1 -C.sub.12 -alkyl, phenyl or C.sub.7 -C.sub.14 -alkaryl, and
- (ii) a phenolic antioxidant.
Dependencies are inferred from the claim text.