Photographic silver halide color material containing fast-acting hardener and 2-pyrazolin-5-one coupler precursors

Claim 2

Colour photographic silver halide material containing a fast-acting hardener selected from the group consisting of carbodiimides, dihydroquinolines, carbamoyl pyridiniums and carbamoyloxy pyridiniums wherein said material contains a 2-pyrazolin-5-one coupler precursor corresponding to one of the following general formulae I or II: ##STR90## in which R 1 represents an alkyl group or an aryl group, R represents an alkyl group, an aryl group, an anilino group, or an acylamino group derived from a carboxylic or sulphonic acid, Y represents hydrogen, a group that can be split off during the colour development for the formation of colour-forming coloured or colourless 2-pyrazolin-5-one couplers, or a group that cannot be split off for the formation of 2-pyrazolin-5-one competing coupler, and Z represents an acyl group deriving from an organic carboxylic acid, an alkoxy-carbonyl group, an aryloxycarbonyl group, or the group ##STR91## in which R 1 , R, and Y have the above-defined significance, and A represents an alkylene group or an arylene group.

Claim 3

Colour photographic material according to claim 1, wherein the 2-pyrazolin-5-one coupler precursor corresponds to formulae I or II, in which R represents an anilino group or a carboxylic acylamino.

Claim 4

Colour photographic material according to claim 1, wherein the fast-acting hardener is a carbamoyl pyridinium hardener corresponding to the following formula: ##STR92## in which R 2 represents an alkyl, aryl, or aralkyl group R 3 represents (1) an alkyl, aryl, or aralkyl group, and the same meaning as R 2 , or (2) an alkyl, aryl, aralkyl, or alkylarylalkyl group substituted with a further carbamoylammonium group of the following formula: ##STR93## or R 2 and R 3 together represent the atoms required to complete a heterocyclic ring, R 4 represents hydrogen, alkyl, or the group --A--.sub.α, in which A represents a vinyl group of a polymerizable vinyl compound or of a copolymer with other copolymerizable monomers and α represents a number such that the molecular weight of the compound is greater than 1000, R 5 hydrogen or alkyl or, when Z denotes the atomic group required for completing a pyridinium ring and R 4 is absent, R 5 denotes a formylamino, acylamino, or ureido group, an alkyl group substituted with acylamino or ureido groups, an amido group, or alkyl, which is substituted with an amido group, a straight chain or branched chain alkyl substituted with hydroxyl, alkyl, formyloxy, acyloxy or a carbamoyloxy, a straight chain or branched chain alkyl substituted with an amino, alkylamino, formylamino, acylamino, or ureido group, R 6 represents alkyl, aryl, or aralkyl, but R 6 is absent, if the nitrogen atom, to which R 6 is attached, carries a double bond in the heterocyclic aromatic ring formed by Z, Z represents the group of atoms required for completing a 5-membered or 6membered heterocyclic aromatic ring, including a condensed ring system, which group may include 1 or more additional heteroatoms, and X represents an anion.

Claim 5

Colour photographic material according to claim 1, wherein the hardener is a carbamoyl pyridinium hardener corresponding to the following general formula: ##STR94## in which R 23 represents an alkyl, aryl, or aralkyl group, R 24 represents (1) an alkyl, aryl, or aralkyl group, and the same meaning as R 23 or (2) an alkyl, aryl, aralkyl, or alkylarylalkyl group substituted with a further carbamoylammonium group of the following formula ##STR95## or R 23 and R 24 together represent the atoms required to complete a heterocyclic ring R 25 represents hydrogen, methyl, or ethyl, R 26 represents methylene, ethylene, propylene, or a simple chemical bond, Me + represents an alkali metal cation, X - represents an anion.

Claim 6

Colour photographic material according to claim 1, wherein the hardener is a carbamoyl pyridinium hardener corresponding to the following general formula: ##STR96## in which R 2 represents an alkyl, aryl, or aralkyl group, R 3 represents (1) an alkyl, aryl, or aralkyl group, and the same meaning as R 2 , or (2) an alkyl, aryl, aralkyl, or alkylarylalkyl group substituted with a further carbamoylammonium group of the following formula: ##STR97## or R 2 and R 3 together represent the atoms required to complete a heterocyclic ring, X represents an anion, R 5 represents hydrogen or one of the following groups: ______________________________________ NR.sup.7COR.sup.8 R.sup.7 = H, Alkyl (C.sub.1C.sub.4) R.sup.8 = H, Alkyl (C.sub.1C.sub.4), NR.sup.9 R.sup.10 R.sup.9,R.sup.10 = (similar or different) H, Alkyl (C.sub.1C.sub.4) (CH.sub.2).sub.mNR.sup.11 R.sup.12 R.sup.11 = COR.sup.13 R.sup.12 = H, Alkyl (C.sub.1C.sub.4) R.sup.13 = H, Alkyl (C.sub.1C.sub.4), NR.sup.14 R.sup.15 R.sup.14 = Alkyl (C.sub.1C.sub.4), Aryl R.sup.15 = H, Alkyl, Aryl m = 1-3 (CH.sub.2).sub.nCONR.sup.16 R.sup.17 R.sup.16 = H, Alkyl (C.sub.1C.sub.4), Aryl R.sup.17 = H, Alkyl (C.sub.1C.sub.4) or R.sup.16 and R.sup.17 together represent the atoms required to complete a 5-membered or 6-membered aliphatic ring n = 0-3 ##STR98## R.sup.18 = H, Alkyl (C.sub.1C.sub.4), which may be substituted by halogen Y = O, NR.sup.20 R.sup.19 = H, Alkyl, COR.sup.21, CONHR.sup.22 R.sup.20, R.sup.21, R.sup.22 = (similar or different) H, Alkyl (C.sub.1C.sub.4) = 2-3 ______________________________________

Claim 7

Colour photographic material according to claim 1, wherein the hardener is a carbamoyl oxypyridinium hardener corresponding to the general formula: ##STR99## in which R 27 represents alkyl or aryl R 28 represents alkyl or the group ##STR100## R 31 represents hydrogen or alkyl, and R 32 represents alkyl, R 27 and R 28 together represent the atoms required to complete a heterocyclic ring system e.g. a pyrrolidine, morpholine, piperidine, perhydroazepine, 1,2,3,4,-tetrahydroquinoline, or imidazoline-2-OH ring, or R 27 and R 28 together represent the atoms required to complete a piperazine ring, in which the second nitrogen atom establishes the connection to a second similar molecular grouping corresponding to the general formulae, R 29 represents hydrogen halogen, alkyl, oxyalkyl, cyano, --CONH 2 , or --NH-CO-O-alkyl, R 30 represents hydrogen or alkyl, X represents an anion.

Claim 8

Colour photographic material according to claim 1, wherein the hardener is a carbodiimide hardener corresponding to the following general formula: R.sup.31 --N═C═N-R.sup.32 in which: R 31 and R 32 represents (similar or different) alkyl, alkoxyalkyl, an aryl group or a 5-membered heterocyclic ring, or R 31 represents alkyl having 1 to 5 carbon atoms, and R 32 represents the group ##STR101## in which R 33 represents alkyl having 1 to 5 carbon atoms, R 34 and R 35 represent alkyl having 1 to 3 carbon atoms, or R 34 and R 35 together represent a 6-membered heterocyclic ring having 1 to 2 hetero atoms, R 36 represents hydrogen or lower alkyl, and X represents an anion.

Claim 9

Colour photographic material according to claim 1, wherein the hardener is a dihydroquinoline hardener corresponding to one of the following general formulae: ##STR102## in which R 37 represents an alkyl group, R 38 represents an alkyl or aralkyl group, or if R 39 represents hydrogen, the group ##STR103## R 39 represents hydrogen, halogen, alkyl, or alkoxy, and R 40 represents an alkyl group.