US4018810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic dye having fluoroaliphatic substituent
Assignee: 3M Co
•
Filing: 1975-06-11
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Granted: 1977-04-19
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Expires: 1995-06-11
Abstract
Abstract Dyes of the formula ##STR1## WHEREIN R c is a monovalent chromophoric radical, M is a sulfonyl, carbonyl, or carbonyloxy bridging radical, R f is a monovalent saturated fluoroaliphatic radical, and R is a monovalent organic radical selected from cyano, MR f , or aryl sulfonyl. A wide spectrum of unusually brilliant colors is available.
Inventors
- 👤 Ivan H. Skoog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/3854; C; C07; C07C; C07C255/00; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C09; C09B; C09B23/00; C09B23/0008; C09B23/0033; C09B23/005; C09B23/0058; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A compound having the general formula ##STR58## wherein R 1 and R 2 are hydrogen, alkyl, haloalkyl, aryl, or aralykl, n is the integer zero, 1 or 2, X is hydrogen, halogen, alkyl, cyano, nitro, alkoxy, --SO 3 H, or carboxylic acid, and m is the integer 1 to 3, R f is a monovalent saturated fluoroaliphatic radical selected from the group consisting of ##STR59##
Claim 2
Dependent Claim
65 words
A compound having the general formula ##STR58## wherein R 1 and R 2 are hydrogen, alkyl, haloalkyl, aryl, or aralykl, n is the integer zero, 1 or 2, X is hydrogen, halogen, alkyl, cyano, nitro, alkoxy, --SO 3 H, or carboxylic acid, and m is the integer 1 to 3, R f is a monovalent saturated fluoroaliphatic radical selected from the group consisting of ##STR59##
Claim 3
Dependent Claim
1 words
##STR60##
Claim 4
Dependent Claim
1 words
##STR60##
References Cited (Backward Citations)
US2649471A
Cited
US2789125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |