Patent US4382457A successfully refreshed from Google Patents.
Patent US4273553A successfully refreshed from Google Patents.
US4273553A
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Anthraquinone reactive dyestuffs
Assignee: Bayer AG
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Filing: 1979-10-19
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Granted: 1981-06-16
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Expires: 1999-10-19
Abstract
Abstract Dyestuffs of the formula ##STR1## wherein R 1 , R 2 , R 3 , R 4 , m, n, p and X have the meaning given in the description, and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibres, filaments and woven fabrics of wool, silk or synthetic polyamide or polyurethane fibres, and for dyeing and printing natural or regenerated cellulose in dyeings and prints which are fast to washing. Blue dyeings and prints which are fast to light and wet processing are obtained.
Inventors
- 👤 Wolfgang Harms
- 👤 Horst Jager
- 👤 Klaus von Oertzen
- 👤 Klaus Wunderlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:15
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
47 words
Dyestuffs of the formula ##STR70## wherein R 1 =C 1 -C 4 -alkyl or halogen, R 2 =H or C 1 -C 4 -alkyl, R 3 and R 4 =H, C 1 -C 4 -alkyl or halogen, m, n and p=0 or 1 and X=NH 2 .
Claim 2
Dependent Claim
47 words
Dyestuffs of the formula ##STR70## wherein R 1 =C 1 -C 4 -alkyl or halogen, R 2 =H or C 1 -C 4 -alkyl, R 3 and R 4 =H, C 1 -C 4 -alkyl or halogen, m, n and p=0 or 1 and X=NH 2 .
Claim 3
Dependent Claim
47 words
Dyestuffs of the formula ##STR71## wherein R 5 , R 6 and R 7 =H, CH 3 or C 2 H 5 , and a sulphonic acid group optionally present in the part of the anthraquinone system labelled A is in the 5-, 6-, 7- or 8-position.
Claim 4
Dependent Claim
47 words
Dyestuffs of the formula ##STR71## wherein R 5 , R 6 and R 7 =H, CH 3 or C 2 H 5 , and a sulphonic acid group optionally present in the part of the anthraquinone system labelled A is in the 5-, 6-, 7- or 8-position.
Claim 5
Dependent Claim
28 words
A process for dyeing and printing materials containing hydroxyl groups or nitrogen, which comprises applying to said dyeing and printing materials a dyestuff of claim 1 or 2.
Claim 6
Dependent Claim
19 words
A printing material containing hydroxyl groups or nitrogen, dyed or printed with the dyestuffs of claim 1 or 2.
Claim 7
Dependent Claim
14 words
A process of claim 3 wherein the dyeing and printing materials are cellulose materials.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |