Abstract: A photographic recording material capable of accelerated development is described. The recording material comprises an image-forming coupler compound, a development inhibitor releasing compound and a compound capable of imagewise release of an electron transfer agent.

Abstract: Photographic elements are disclosed having a first coupler represented by the formula:COUP.sub.1 --T--INH--CH.sub.2 --QwhereinCOUP.sub.1 is a coupler moiety,T is a timing group that is bonded to the coupler moiety at a coupling position and that is cleaved from --INH--CH.sub.2 --Q after it is released from the coupler moiety upon exposure and processing of the element, andINH--CH.sub.2 --Q is a development inhibitor moiety wherein Q is a ballasting group, anda second coupler represented by the formula:COUP.sub.2 --(TIME).sub.n --S--R.sub.1 --R.sub.2wherein COUP.sub.2 is a coupler moiety, TIME is a timing group, n is 0 or 1, R.sub.1 is a divalent linking group that does not include a heterocyclic ring attached directly to S, and R.sub.2 is a water solubilizing group.

Abstract: A photographic recording material is disclosed which is capable of providing improved granularity properties without sacrifice in other desirable photographic properties. The recording material comprises an image dye-forming coupler compound, a development inhibitor releasing compound, a compound capable of imagewise release of a soluble mercaptan compound and a compound capable of imagewise release of an electron transfer agent.

Abstract: Photographic elements, film units, processes and alkaline processing compositions are described wherein certain 4-hydroxyalkyl-substituted 3-pyrazolidinones are employed as electron transfer agents in black-and-white and color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: n is 1 or 2;R repesents hydrogen or a hydrolyzable moiety;R.sup.1 represents an alkyl or substituted alkyl group of 1 to about 6 carbon atoms, an aryl or substituted aryl group of 6 to about 10 carbon atoms, or an aralkyl group of 6 to about 10 carbon atoms;R.sup.2 and R.sup.3 each independently represents hydrogen, an alkyl or substituted alkyl group of 1 to about 6 carbon atoms, an aryl or substituted aryl group of 6 to about 10 carbon atoms, or an aralkyl group of 6 to about 10 carbon atoms; andR.sup.4 represents hydrogen or one or more alkyl or alkoxy groups having from 1 to about 4 carbon atoms, methylenedioxy groups or ethylenedioxy groups.

Abstract: Photographic elements, film units, processes and alkaline processing compositions are described wherein certain 4-hydroxyalkyl-substituted 3-pyrazolidinones are employed as electron transfer agents in black-and-white and color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: n is 0, 1 or 2;R represents hydrogen or a hydrolyzable moiety;R.sup.1 and R.sup.2 each independently represents hydrogen, an alkyl or substituted alkyl group of 1 to about 6 carbon atoms, an aryl or substituted aryl group of 6 to about 10 carbon atoms, or an aralkyl group of 6 to about 10 carbon atoms, with the proviso that when n is 0, then either R.sup.1 or R.sup.2, but not both, may be hydrogen; andR.sup.3 represents at least one alkyl or alkoxy group having from 1 to about 6 carbon atoms, methylenedioxy group or ethylenedioxy group.

Abstract: Photographic elements, film units, processes and alkaline processing compositions are described wherein certain 4-hydroxyalkyl-substituted 3-pyrazolidinones are employed as electron transfer agents in black-and-white and color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: n is 1 or 2;R represents hydrogen or a hydrolyzable moiety;R.sup.1 represents an alkyl or substituted alkyl group of 1 to about 6 carbon atoms, an aryl or substituted aryl group of 6 to about 10 carbon atoms, or an aralkyl group of 6 to about 10 carbon atoms;R.sup.2 and R.sup.3 each independently represents hydrogen, an alkyl or substituted alkyl group of 1 to about 6 carbon atoms, an aryl or substituted aryl group of 6 to about 10 carbon atoms, or an aralkyl group of 6 to about 10 carbon atoms; andR.sup.4 represents hydrogen or one or more alkyl or alkoxy groups having from 1 to about 4 carbon atoms, methylenedioxy groups or ethylenedioxy groups.

Abstract: Photographic elements, film units, processes and alkaline processing compositions are described wherein certain 4-hydroxyalkyl-substituted 3-pyrazolidinones are employed as electron transfer agents in black-and-white and color image transfer materials. The silver halide electron transfer agents or precursors thereof have the following formula: ##STR1## wherein: n is 0, 1 or 2;R represents hydrogen or a hydrolyzable moiety;R.sup.1 and R.sup.2 each independently represents hydrogen, an alkyl or substituted alkyl group of 1 to about 6 carbon atoms, an aryl or substituted aryl group of 6 to about 10 carbon atoms, or an aralkyl group of 6 to about 10 carbon atoms, with the proviso that when n is 0, then either R.sup.1 or R.sup.2, but not both, may be hydrogen; andR.sup.3 represents at least one alkyl or alkoxy group having from 1 to about 6 carbon atoms, methylenedioxy group or ethylenedioxy group.