Novel (UV absorbing compounds and) photographic elements containing UV absorbing compounds

Abstract

1-Amino-4-cyano-1,3-butadiene compounds of the formula ##STR1## wherein n is 1 or 2, when n is 1 R 1 and R 2 can be the same or different and represent hydrogen, alkyl including substituted alkyl, aryl including substituted aryl or cyclic alkyl groups, except that both R 1 and R 2 cannot be hydrogen, or taken together R 1 and R 2 represent the elements necessary to complete a cyclic amino group and when n is 2 at least one of R 1 and R 2 is alkylene or arylene; G represents an electron withdrawing group. The compounds are especially useful in photographic elements as UV absorbers.

We claim: .[. 
     
       1.  In a photographic element comprising a support, at least one radiation sensitive silver halide emulsion layer and an ultraviolet absorbing compound, the improvement comprising the use of a 1-amino-4-cyano-1,3-butadiene ultraviolet absorbing compound..]. .[.2. The element according to claim 1 wherein said 1-amino-4-cyano-1,3-butadiene compound is of the formula: ##STR26## wherein n is 1 or 2, when n is 1, R 1  and R 2  are independently chosen to represent hydrogen, an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 20 carbon atoms, or a cyclic alkyl group of 5 or 6 carbon atoms provided that R 1  and R 2  cannot both be hydrogen, or R 1  and R 2  taken together represent the atoms necessary to complete a cyclic amino group and when n is 2 at least one of R 1  and R 2  is alkylene or arylene, and G represents an electron withdrawing 
     
     
        group..]. 3. A photographic element comprising a support having thereon at least one radiation sensitive silver halide emulsion layer and an ultraviolet filter layer comprising a binder and at least one compound having the formula: ##STR27## wherein n is 1 or 2, when n is 1, R 1  and R 2  are independently chosen to represent hydrogen, an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or a cyclic alkyl group of 5 to 6 carbon atoms provided that R 1  and R 2  cannot both be hydrogen, or R 1  and R 2  taken together represent the atoms necessary to complete a cyclic amino group and when n is 2 at least one of R 1  and R 2  is alkylene or arylene, and G represents an electron withdrawing 
     
     
        group. 4. A photographic element according to claim 3 wherein the binder 
     
     
        is a hydrophillic colloid. 5. A photographic element according to claim 3 wherein the electron withdrawing group is selected from the group consisting of ##STR28## where R represents an alkyl group of 1 to 10 carbon atoms or aryl group of 
     
     
        6 to 10 carbon atoms. 6. A photographic element according to claim 3 wherein G is the group CN and R 1  and R 2  are both alkyl groups of 
     
     
        1 to 10 carbon atoms. 7. A photographic element according to claim 3 wherein G is the group CN, R 1  is hydrogen and R 2  is an alkyl 
     
     
        group of 1 to 10 carbon atoms. 8. A photographic element comprising a support having thereon at least one silver halide emulsion layer and at least one ultraviolet filter layer comprising a binder and at least one compound selected from the group consisting of 3-dibutylaminoallylidenemalononitrile, 3-dihexylaminoallylidenemalononitrile, 3-tert-butylaminoallylidenemalononitrile, 3-diisobutylaminoallylidenemalononitrile, 3-di-sec-butylaminoallylidenemalononitrile, 3-hexahydroazepinoallylidenemalononitrile, 3-N-(n-butyl)-N-cyanomethyl aminoallylidenemalononitrile, 3[N,N-bis-(2,2-diethoxyethyl)amino]allylidenemalononitrile, 3(n-methyl-N-cyanomethyl)aminoallylidenemalononitrile, 1,4-piperazino bis(allylidenemalononitrile), N,N'-diethyl-N,N-di(4,4-dicyenobutadienyl)-1,6-diaminohexane and 
     
     
        3[N,N-bis(2-cyanoethyl)amino]allylidenemalononitrile. 9. A photographic element comprising a support having thereon at least one silver halide emulsion layer and at least one ultraviolet filter layer comprising a binder and at least one compound selected from the group consisting of 3-morpholinoallylidene methylsulfonylacetonitrile, 3-morpholinoallylidene 4-tert-butylphenylsulfonylacetonitrile, 3-piperazinoallylidene 4-tert-butylphenylsulfonylacetonitrile and 3-N-methylpiperazinoallylidene 
     
     
        4-tert-butylphenylsulfonylacetonitrile. 10. A photographic element comprising at least one silver halide emulsion layer coated on a film support, said film support being selected from a solvent cast or melt-formed film support and having incorporated therein at least one ultraviolet filter compound of the formula: ##STR29## wherein n is 1 or 2, when n is 1, R 1  and R 2  are independently chosen to represent hydrogen, an alkyl group of 1 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or a cyclic alkyl group of 5 or 6 carbon atoms provided that R 1  and R 2  cannot both be hydrogen, or R 1  and R 2  taken together represent the atoms necessary to complete a cyclic amino group and when n is 2 at least one of R 1  and R 2  is alkylene or arylene, and G represents an electron withdrawing 
     
     
        group. 11. A photographic element according to claim 10 wherein the electron withdrawing group is selected from the group consisting of ##STR30## where R represents an alkyl group of 1 to 10 carbon atoms or aryl group of 
     
     
        6 to 10 carbon atoms. 12. A photographic element according to claim 10 wherein G is the group CN and R 1  and R 2  are alkyl groups of 1 to 
     
     
        10 carbon atoms. 13. A photographic element according to claim 10 wherein G is the group CN, R 1  is hydrogen and R 2  is an alkyl group of 1 
     
     
        to 10 carbon atoms. 14. A photographic element comprising at least one silver halide emulsion layer coated on a film support, said film support being selected from a solvent-cast or melt-formed film support and said support having therein at least one ultraviolet filter compound selected from the group consisting of 3-dibutylaminoallylidenemalononitrile, 3-dihexylaminoallylidenemalononitrile, 3-tert-butylaminoallylidenemalononitrile, 3-diisobutylaminoallylidenemalononitrile, 3-di-sec-butylaminoallylidenemalononitrile, 3-hexahydroazepinoallylidenemalononitrile, 3-N(n-butyl)-N-cyanomethylaminoallylidenemalononitrile, 3(N,N-bis-(2,2-diethoxyethyl)amino]allylidenemalononitrile, 3(n-methyl-N-cyanomethyl)aminoallylidenemalononitrile, 1,4-piperazino bis(allylidenemalononitrile), N,N'-diethyl-N,N-di(4,4-dicyanobutadienyl)-1,6-diaminohexane and 
     
     
        3-[N,N-bis(2-cyanoethyl)amino]allylidenemalononitrile. 15. A photographic element comprising at least one silver halide emulsion layer coated on a film support, said film support being selected from a solvent-cast or melt-formed film support and said support having therein at least one ultraviolet filter compound selected from the group consisting of 3-morpholinoallylidenemethylsulfonylacetonitrile, 3-morpholinoallylidene 4-tert-butylphenylsulfonylacetonitrile, 3-piperazinoallylidene 4-tert-butylphenylsulfonylacetonitrile and 3-N-methylpiperazinoallylidene 
     
     
        4-tert-butylphenylsulfonylacetonitrile. 16. A photographic element comprising a support having thereon at least one silver halide emulsion layer and at least one ultraviolet filter layer comprising a binder and 
     
     
        3-dibutylaminoallylidenemalononitrile. 17. A photographic element comprising a support having thereon at least one silver halide emulsion layer and at least one ultraviolet filter layer comprising a binder and 
     
     
        3-dihexylaminoallylidenemalononitrile. 18. A photographic element comprising at least one silver halide emulsion layer coated on a film support, said film support being selected from a solvent-cast or melt-formed film support and having therein the ultraviolet filter 
     
     
        compound 3-dibutylaminoallylidenemalononitrile. 19. A photographic element comprising at least one silver halide emulsion layer coated on a film support, said film support being selected from a solvent-cast or melt-formed film support and having therein the ultraviolet filter 
     
     
        compound 3-dihexylaminoallylidenemalononitrile. .Iadd.20.  A photographic element comprising a support having thereon at least one radiation sensitive silver halide emulsion layer and an ultraviolet filter layer comprising a binder and at least one compound having the formula: ##STR31## wherein n is 1 or 2, when n is 1, R 1  and R 2  are independently chosen to represent hydrogen, an alkyl group of 1 to 10 carbon atoms, or a cyclic alkyl group of 5 or 6 carbon atoms provided that R 1  and R 2  cannot both be hydrogen, or R 1  and R 2  taken together represent the atoms necessary to complete a cyclic amino group and when n is 2 at least one of R 1  and R 2  is alkylene and G represents an 
     
     
        electron withdrawing group. .Iaddend. .Iadd.21.  A photographic element comprising at least one silver halide emulsion layer coated on a film support, said film support being selected from a solvent cast or melt-formed film support and having incorporated therein at least one ultraviolet filter compound of the formula: ##STR32## wherein n is 1 or 2, when n is 1, R 1  and R 2  are independently chosen to represent hydrogen, an alkyl group of 1 to 10 carbon atoms, or a cyclic alkyl group of 5 to 6 carbon atoms provided that R 1  and R 2  cannot both be hydrogen, or R 1  and R 2  taken together represent the atoms necessary to complete a cyclic amino group and when n is 2 at least one of R 1  and R 2  is alkylene and G represents an electron withdrawing group. .Iaddend.