Film containing bleach-inhibitor-releasing compounds and process for preparing silver auxiliary and sound records
Abstract
Abstract PROCESSES AND ELEMENTS ARE PROVIDED FOR FORMING SEPARATE SILVER AND DYE IMAGE RECORDS, THE ELEMENT COMPRISING A SUPPORT HAVING COATED THEREON A PICTURE RECORDING PHOTOGRAPHIC UNIT COMPRISING AT LEAST ONE SILVER HALIDE EMULSION LAYER AND AN AUXILIARY SILVER IMAGE-PRODUCING SILVER HALIDE EMULSION LAYER, AND THE PROCESS INCLUDING (1) FORMING DYE AND A FIRST SILVER IMAGE IN SAID PICTURE RECORDING UNIT; (2) REACTING THE SILVER HALIDE IN SAID AUXILIARY LAYER WITH A PHOTOGRAPHIC DEVELOPING AGENT TO FORM A SECOND SILVER IMAGE AND OXIDIZED PHOTOGRAPHIC DEVELOPING AGENT; AND (3) BLEACHING AND FIXING THE PHOTOGRAPHIC ELEMENT TO REMOVE THE RESIDUAL SILVER HALIDE AND THE FIRST SILVER IMAGE WHILE RETAINING THE SECOND SILVER IMAGE. IN ACCORDANCE WITH THE INVENTION, THE AUXILIARY LAYER CONTAINS AT LEAST ONE NODIFFUSING COMPOUND WHICH RELEASES A BALLASTED SILVER BLEACH INHIBITOR UPON REACTION WITH THE OXIDIZED DEVELOPING AGENT.
Inventors
- 👤 Carl F Holtz
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |