Photographic elements,compositions and processes
Abstract
Abstract IN PHOTOGRAPHIC ELEMENTS, COMPOSITIONS, ESPECIALLY EMULSIONS, AND PROCESSES AN OLEPHILIC COMPLEX OF (A) A PHOTOGRAPHIC ADDENDUM, ESPECIALLY A SILVER HALIDE DEVELOPING AGENT, WITH (B) AN ORGANIC, GROUP V ELEMENT OXIDE, WHICH COMPLEX HAS THE PROPERTY OF RELEASING THE PHOTOGRAPHIC ADDENDUM IN THE PRESENCE OF AN ALKALI PROVIDES REDUCED DESENSITIZATION, IMPROVED LATENT IMAGE STABILITY AND IMPROVED PHOTOGRAPHIC ADDEDUM RELEASE UPON CONTACT WITH ALKALI. PHOTOGRAPHIC ELEMENTS, SUCH AS LITHOGRAPHIC PLATES, CONTAINING AN OLEOPHILIC COMPLEX OF (A) A SILVER HALIDE DEVELOPING AGENT CONTAINING AT LEAST ONE HYDROXYL GROUP WITH (B) AN ORGANIC PHOSPHINE OXIDE AND/OR AN ORGANIC AMINE OXIDE ARE ESPECIALLYU SUITABLE. A WIDE RANGE OF PHOTOGRAPHIC ADDENDA CAN BE EMPLOYED, INCLUDING, FOR INSTANCE, DEVELOPING AGENTS, FILTER DYES CONTAINING HYDROXYL GROUPS, COUPLERS CONTAINING HYDROXYL GROUPS AND THE LIKE. IT IS BELIEVED THE MOIETIES OF THE DESCRIBED COMPLEX ARE HYDROGEN BONDED TOGETHER.
Inventors
- 👤 Herbert S Elins
- 👤 James P Van Meter
Bibliographic Details
Claims Analysis
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