US4380633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methine dyes from tetrahydroquinoline compounds containing N-thioether substituents
Assignee: Novartis Corp
•
Filing: 1980-12-01
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Granted: 1983-04-19
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Expires: 2000-12-01
Abstract
Abstract Methine dyes from tetrahydroquinoline compounds containing N-thioether substituents, in general produce bright yellow shades when applied to polyester fabrics by conventional dyeing procedures, have improved properties such as dyeability, fastness to light, resistance to sublimation, insensitivity to pH changes, and dye at the boil and under pressure to the same depth of shade. These compounds are particularly useful in the thermal fixation technique for dyeing polyester materials.
Inventors
- 👤 Clarence A. Coates, Jr.
- 👤 Max A. Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:32
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/04; C07D215/06; C09; C09B; C09B23/00; C09B23/0091; C09B23/14; C09B23/143
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
A compound of the formula ##STR128## wherein X is selected from cyano, carbamoyl, lower alkylcarbamoyl, lower alkoxycarbonyl, lower alkylsulfonyl, and phenylsulfonyl; R, R 1 , and R 2 are independently selected from hydrogen and lower alkyl; R 3 is selected from hydrogen, lower alkyl, lower alkoxy, fluorine, chlorine, and bromine; R 4 is lower alkylene; and R 5 is selected from hydroxyethyl, acetoxyethyl, cyclohexyl, methylcyclohexyl, p-chlorophenylethyl, pyridyl, quinolyl, pyrimidinyl, thiadiazolyl, pyrazyl, and oxdiazolyl radicals.
Claim 2
Dependent Claim
74 words
A compound of the formula ##STR128## wherein X is selected from cyano, carbamoyl, lower alkylcarbamoyl, lower alkoxycarbonyl, lower alkylsulfonyl, and phenylsulfonyl; R, R 1 , and R 2 are independently selected from hydrogen and lower alkyl; R 3 is selected from hydrogen, lower alkyl, lower alkoxy, fluorine, chlorine, and bromine; R 4 is lower alkylene; and R 5 is selected from hydroxyethyl, acetoxyethyl, cyclohexyl, methylcyclohexyl, p-chlorophenylethyl, pyridyl, quinolyl, pyrimidinyl, thiadiazolyl, pyrazyl, and oxdiazolyl radicals.
Claim 3
Dependent Claim
62 words
A compound according to claim 1 wherein R 5 has one of the formulae ##STR129## wherein R 12 is hydrogen, lower alkanoylamino or lower alkylsulfonamido; R 13 is hydrogen, lower alkyl, phenyl or phenyl substituted with lower alkyl, lower alkoxy, F, Cl or Br; R 15 is lower alkyl, or H when n is 0; and n is 0, 1 or 2.
Claim 4
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR130##
Claim 5
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR131##
Claim 6
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR132##
Claim 7
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR133##
Claim 8
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR134##
Claim 9
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR135##
Claim 10
Dependent Claim
10 words
A compound according to claim 1 having the formula ##STR136##
References Cited (Backward Citations)
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US3631049A
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US3917604A
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Cited
US4077962A
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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) | 1986-04-18 | 1986-10-18 | 1987-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-18 | 1990-10-18 | 1991-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-18 | 1994-10-18 | 1995-04-19 | $7700.00 | Window Closed / Lapsed |