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US5079365A
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Triazolopyridine dyes and thermal transfer of methine dyes
Assignee: Dystar Textilfarben GmbH and Co Deutschland KG
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Filing: 1990-08-20
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Granted: 1992-01-07
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Expires: 2010-08-20
Abstract
Abstract Triazolopyridine dyes useful for thermal transfer of methine dyes have the formula <IMAGE> (I) where R1 is C1-C20-alkyl, which may be substituted and interrupted by one or more oxygen atoms, or is substituted or unsubstituted phenyl or hydroxyl, R2 is a 5- or 6-membered carbocyclic or heterocyclic ring which may be substituted and benzofused, R3 is cyano, carbamoyl, carboxyl or C1-C4-alkoxycarbonyl, R4 is oxygen or a radical of the formula <IMAGE> where L1 is in each case C1-C6-alkyl which may be interrupted by 1 or 2 oxygen atoms, and X is CH or nitrogen.
Inventors
- 👤 Rudiger Sens
- 👤 Ernst Schefczik
- 👤 Karl-Heinz Etzbach
- 👤 Gunther Lamm
- 👤 Helmut Reichelt
- 👤 Matthias Wiesenfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:29
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/3856; C; C09; C09B; C09B23/00; C09B23/02; C09B23/04; C09B55/00; C09B55/009; B41M5/3854; B41M5/39; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
106 words
A triazolopyridine dye of the formula I ##STR142## where R 1 is C 1 -C 20 -alkyl, which may be substituted and interrupted by one or more oxygen atoms, or is substituted or unsubstituted phenyl or hydroxyl, R 2 is a 5- or 6-membered carbocyclic or heterocyclic ring which may be substituted and benzo fused, R 3 is cyano, carbamoyl, carboxyl or C 1 -C 4 -alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR143## where L 1 is in each case C 1 -C 8 -alkyl which may be interrupted by 1 or 2 oxygen atoms, and X is CH or nitrogen.
Claim 2
Dependent Claim
106 words
A triazolopyridine dye of the formula I ##STR142## where R 1 is C 1 -C 20 -alkyl, which may be substituted and interrupted by one or more oxygen atoms, or is substituted or unsubstituted phenyl or hydroxyl, R 2 is a 5- or 6-membered carbocyclic or heterocyclic ring which may be substituted and benzo fused, R 3 is cyano, carbamoyl, carboxyl or C 1 -C 4 -alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR143## where L 1 is in each case C 1 -C 8 -alkyl which may be interrupted by 1 or 2 oxygen atoms, and X is CH or nitrogen.
Claim 3
Dependent Claim
13 words
A triazolopyridine data as claimed in claim 1, wherein R 3 is cyano.
Claim 4
Dependent Claim
30 words
A triazolopyridine dye as claimed in claim 1, wherein R 2 is selected from the group consisting of benzene, indole, quinoline, aminonaphthalene, pyrrole, aminothiazole, benzimidazole, benzthiazole, aminothiophene or diaminopyridine series.
Claim 5
Dependent Claim
60 words
A triazolopyridine dye as claimed in claim 1, wherein R 1 is C 1 -C 12 -alkyl, which may be substituted by C 1 -C 6 -alkanoyloxy, C 1 -C 8 -alkoxycarbonyl (whose alkyl chains may each be interrupted by 1 or 2 oxygen atoms), phenyl or C 1 -C 4 -alkylphenyl and interrupted by 1 or 2 oxygen atoms.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |