HIGH CONTRAST PHOTOGRAPHIC ELEMENT INCLUDING AN ARYL SULFONAMIDOPHENYL HYDRAZIDE CONTAINING AN ALKYL PYRIDINIUM GROUP
Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R1...
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| Main Authors | , |
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| Format | Patent |
| Language | English French |
| Published |
25.11.1991
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| Edition | 5 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R1 is hydrogen or a blocking group. |
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| AbstractList | Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R1 is hydrogen or a blocking group. |
| Author | LOOKER, JEROME J KERR, DONALD L |
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| DocumentTitleAlternate | ELEMENT PHOTOGRAPHIQUE A GRAND CONSTRASTE COMPORTANT UN ARYLSULFONAMIDOPHENYLHYDRAZIDE CONTENANT UN GROUPE ALKYLPYRIDINIUM |
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| Notes | Application Number: CA19912039565 |
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| PublicationDate | 19911125 |
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| Snippet | Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl... |
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| SubjectTerms | AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS |
| Title | HIGH CONTRAST PHOTOGRAPHIC ELEMENT INCLUDING AN ARYL SULFONAMIDOPHENYL HYDRAZIDE CONTAINING AN ALKYL PYRIDINIUM GROUP |
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