Heat sensitive recording material
Abstract
Abstract A HEAT SENSITIVE RECORDING MATERIAL CONTAINING AT LEAST ONE OF LACTONE COMPOUNDS HAVING THE GENERAL FORMULA, (WHEREIN R2 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, A LOWER ALKYL GROUP OF 1 TO 5 CARBON ATOMS, A LOWER ALKOXY GROUP OF 1 TO 5 CARBON ATOMS, AMINO GROUP, A LOWER ALKYL AMINO GROUP OF 1 TO 5 CARBON ATOMS AND BENZYL AMINO GROUP; R1 AND R3 ARE SELECTED FROM THE GROUP CONSISTING OF THE SAME MEMBERS AS ABOVE DEFINED ON R2 EXCEPT THAT BENZYL AMINO GROUP IS EXCLUDED; AT LEAST ONE OF R1 AND R2 ARE SELECTED FROM AMINO GROUP, A LOWER ALKYL AMINO GROUP OF 1 TO 5 CARBON ATOMS AND BENZYL AMINO GROUP; R5 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, A LOWER ALKYL GROUP OF 1 TO 5 CARBON ATOMS, A LOWER ALKOXY GROUP OF 1 TO 5 CARBON ATOMS, HALOGENES, A LOWER ALKYL AMINO GROUP OF 1 TO 5 CARBON ATOMS, BENZYL AMINO GROUP AND ARYL AMINO GROUP; AND R4,R6 AND R7 ARE SELECTED FROM THE GROUP CONSISTING OF THE SAME MEMBERS AS ABOVE DEFINED ON R5 EXCEPT THAT ARYL AMINO GROUP IS EXCLUDED) AND AT LEAST ONE PHENOL COMPOUNDS. (PHTHALAN-1,9''-XANTHENE) 3-(O=),1''-R4,2''-R5,3''-R6,4''-R7,5''-R1,6''-R2,7''-R3-SPIRO
Inventors
- 👤 K Futaki
- 👤 M Motoki
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |