Leuco triarylmethane/hexaarylbiimidazole color forming system containing a deactivator
Abstract
Abstract A PHOTOIMAGABLE AND PHOTODEACTIVATABLE COMPOSITION OF (A) A SALT OF A LEUCO TRIARYLMETHANE AND A SALT-FORMING ACID; (B) A HEXAARYLBIMIDAZOLE WHICH ABSORBS PRINCIPALLY IN THE ULTRAVIOLET REGION AND IS A PHOTOXIDANT FOR THE SALT OF THE LEUCO TRIARYLMETHANE PRESENT IN AN AMOUNT OF FROM ABOUT 1 TO 2 MOLES PER MOLE OF SAID SALT OF THE LEUCO TRIARYLMETHANE; (C) 1,6-PYRENEQUINONE OR 1,8-PYRENEQUINONE OR BOTH, PRESENT IN AN AMOUNT OF FROM ABOUT .04 TO .4 MOLE PER MOLE OF HEXAARYLBIMIDAZOLE; (D) A VISIBLE LIGHT-ABSORBING CARBONYL COMPOUND SELECTED FROM 9, 10-PHENANTHRENEQUIONE, PERINAPHTHENONE, OR 4-METHOXY-1,2-NAPHTHOQUINONE; PRESENT IN AN AMOUNT OF FROM ABOUT .05 TO 2 MOLE OF HEXAARYLBIMIDAZOLE; AND (E) AN ETHER CONTAINING AT LEAST ONE OXYMETHYLENE GROUP WHEREIN THE METHYLENE BEARS AT LEAST ONE HYDROGEN; PRESENT IN AN AMOUNT PROVIDING FROM ABOUT 50 TO 500 OXYMETHYLENE GROUPS PER MOLE OF THE COMBINED QUINONE COMPONENTS (C) AND (D).
Inventors
- 👤 Peter S Strilko
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |