US5147845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazolopyridine dyes and thermal transfer of methine dyes
Assignee: BASF SE
•
Filing: 1991-08-09
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Granted: 1992-09-15
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Expires: 2011-08-09
Abstract
Abstract Triazolopyridine dyes useful for thermal transfer of methine dyes have the formula ##STR1## 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 benzofused, R 3 is cyano, carbamoyl, carboxyl or C 1 -C 4 -alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR2## 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.
Inventors
- 👤 Ruediger Sens
- 👤 Ernst Schefczik
- 👤 Karl-Heinz Etzbach
- 👤 Gunther Lamm
- 👤 Helmut Reichelt
- 👤 Matthias Wiesenfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
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: 4
Claim 1
Independent Claim
136 words
A process for transferring a methine dye from a transfer to plastic-coated paper comprising treating with an energy source a transfer on which there is or are situated one or more dyes of the formula I and/or Ia ##STR133## 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 benzofused, R 3 is cyano, carbamoyl, carboxyl or C 1 -C 4 alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR134## 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
136 words
A process for transferring a methine dye from a transfer to plastic-coated paper comprising treating with an energy source a transfer on which there is or are situated one or more dyes of the formula I and/or Ia ##STR133## 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 benzofused, R 3 is cyano, carbamoyl, carboxyl or C 1 -C 4 alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR134## 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
120 words
A transfer, suitable for a thermal transfer printing process, comprising: a binder and one or more dyes of the formula I and/or Ia ##STR135## 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 5- or 6-membered carbocyclic or heterocyclic ring which may be substituted and benzofused, R 3 is cyano, carbamoyl, carboxyl or C 1 C 4 -alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR136## where L 1 is in each case C 1 -C 4 -alkyl which may be interrupted by 1 or 2 oxygen atoms, and X is CH or nitrogen.
Claim 4
Dependent Claim
120 words
A transfer, suitable for a thermal transfer printing process, comprising: a binder and one or more dyes of the formula I and/or Ia ##STR135## 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 5- or 6-membered carbocyclic or heterocyclic ring which may be substituted and benzofused, R 3 is cyano, carbamoyl, carboxyl or C 1 C 4 -alkoxycarbonyl, R 4 is oxygen or a radical of the formula ##STR136## where L 1 is in each case C 1 -C 4 -alkyl which may be interrupted by 1 or 2 oxygen atoms, and X is CH or nitrogen.
References Cited (Backward Citations)
US4968657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |