Bis(n-acylamino) derivatives of perylene tetracarboxylic acid imides
Abstract
Abstract A PERYLENE SERIES DYESTUFF OF THE FORMLUA: 2,9-BIS(R1-N(-R2)-)-1H,10H-ANTHRA(2,1,9-DEF:6,5,10- D''E''F'')DIISOQUINOLINE-1,3(2H),8(9H),10-TETRAONE WHEREIN: R1 IS HYDROGEN, AN OPTIONALLY SUBSTITUTED ALKYL, CYCLOALKYL, ARALKYL, OR ARYL GROUP; R2 IS A OPTIONALLY SUBSTITUTED ALKYL, CYLOALKYL, ARALKYL OR ARYL GROUP, OR AN ALKOXY CABONYL GROUP, OR A HEETEROCYCLIC RADICAL; OR A RADIACAL OF THE FORMULA: WHEREIN X IS -X-R3, -CO- OR -SO- AND R3 IS AN OPTIONALLY SUBSTITUTED ALKYL, CYUCLOALKYL, ARALKYL, ARYL OR HETEROCYCLIC RADICAL; OR A RADICAL OF THE FORMULA: -Y-N(-R4)-R5 WHEREIN Y IS -CO-, -C(=NH)- OR -C(=S)- AND R4 AND R5 ARE HYDROGEN OR OPTIONALLY SUBSTITUTED ALKYL GROUPS, CYLOALKYL GROUPS, ARALKYL GROUPS OR ARYL GROUPS; WHEREIN THE PERYLENE RADICAL CAN HAVE FURTHER SUBSTITUENTS; WITH THE PROVISO THAT WHEN R2 IS -X-R3 OR -Y-N(-R4)-R5 THEN R1 IS HYDROGEN.
Inventors
- 👤 Dietmar Kalz
- 👤 Gerhard Wolfrum
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |