US4129736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazinyl-antraquinone dyestuffs
Assignee: BASF Corp
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Filing: 1977-01-27
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Granted: 1978-12-12
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Expires: 1997-01-27
Abstract
Abstract Fibre-reactive dyestuffs of the formula ##STR1## wherein F is the radical of a chromophore, R is hydrogen, alkyl or aryl, X is halogen and A is a carbocyclic radical.
Inventors
- 👤 Rainer Begrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:32
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
47 words
A fiber-reactive anthraquinone dyestuff of the formula ##STR30## wherein Y is hydrogen or sulfo, Z 1 is a phenylene or diphenylene divalent linking radical; X is chloro, bromo or fluoro; R is hydrogen, lower alkyl, cyclohexyl or phenyl; and the ring A is cyclopentenyl, cyclohexenyl or cycloheptenyl.
Claim 2
Dependent Claim
47 words
A fiber-reactive anthraquinone dyestuff of the formula ##STR30## wherein Y is hydrogen or sulfo, Z 1 is a phenylene or diphenylene divalent linking radical; X is chloro, bromo or fluoro; R is hydrogen, lower alkyl, cyclohexyl or phenyl; and the ring A is cyclopentenyl, cyclohexenyl or cycloheptenyl.
Claim 3
Dependent Claim
24 words
A fiber-reactive anthraquinone dyestuff according to claim 1, wherein Z 1 is mono-substituted by sulfo on each benzene ring present in said divalent radical.
References Cited (Backward Citations)
CH430919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |