Diazotype composition
Abstract
Abstract A diazotype material is disclosed containing a novel 2-substituent-3-thio-5-alkoxybenzene diazonium compound of formula I ##SPC1## wherein X is an anion, A is the group ##EQU1## or -- OR 4 in which R 1 is hydrogen, an alkyl radical with 1-8 carbon atoms, a substituted phenyl, cycloalkyl, or aralkyl radical or a heterocyclic radical, R 2 is an alkyl radical with 1-8 carbon atoms, a --COOR 5 group in which R 5 signifies hydrogen, an alkyl radical with 1-8 carbon atoms, a cycloalkyl, aryl, aralkyl, or alkylaryl radical or a heterocyclic radical, or a group of ##EQU2## in which R 6 and R 7 stand independently of one another for hydrogen or a hydroxy, alkoxy, alkyl with 1-4 carbon atoms, or phenyl radical, R 1 and R 2 together with the nitrogen may be a morpholino, a methyl-substituted morpholino, pyrrolidino, or piperidino group, R 3 is an alkyl radical with 1-8 carbon atoms, an aralkyl, alkoxyaryl, haloaryl, alkoxyalkyl, or cycloalkyl radical or a heterocyclic radical, and R 4 is an alkyl, branched or unbranched lower alkyl, cycloalkyl, or aralkyl radical.
Inventors
- 👤 Petar Jagrovic
Bibliographic Details
Claims Analysis
Total Claims: 9References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-20 | 1980-01-19 | 1980-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-20 | 1984-01-19 | 1984-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-20 | 1988-01-19 | 1988-07-20 | $7700.00 | Window Closed / Lapsed |