Patent US4582509A successfully refreshed from Google Patents.
US4582509A
Expired / Lapsed
US
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Mixtures of monoazo dyestuffs
Assignee: Sanofi Aventis Deutschland GmbH
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Filing: 1985-02-04
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Granted: 1986-04-15
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Expires: 2005-02-04
Abstract
Abstract The mixture of monoazo dyestuffs containing at least different individual dyestuffs of the formula ##STR1## wherein R 1 is alkyl of 1 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 2 is alkyl of 1 to 3 carbon atoms and R 3 and R 4 , independently of each other, are alkyl of 1 to 4 carbon atoms, is highly suitable for dyeing and printing hydrophobic materials.
Inventors
- 👤 Ulrich Buhler
- 👤 Manfred Hahnke
- 👤 Albert Bode
- 👤 Kurt Roth
- 👤 Margarete Boos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:07
CPC Classifications
C; C09; C09B; C09B29/00; C09B67/00; C09B67/0033; C09B67/0046; C09B67/0051; C09B29/06; C09B29/08; C09B29/0805; C09B29/0807; C09B29/0809; D; D06; D06P; D06P1/00; D06P1/16; D06P1/18; Y; Y10; Y10S; Y10S534/00; Y10S534/01; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
69 words
A mixture of monoazo dyestuffs comprising at least two different dyestuffs of the formula ##STR7## wherein R 1 is alkyl of 1 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 2 is alkyl of 1 to 3 carbon atoms and R 3 and R 4 , independently of each other, are alkyl of 1 to 4 carbon atoms.
Claim 2
Dependent Claim
69 words
A mixture of monoazo dyestuffs comprising at least two different dyestuffs of the formula ##STR7## wherein R 1 is alkyl of 1 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 2 is alkyl of 1 to 3 carbon atoms and R 3 and R 4 , independently of each other, are alkyl of 1 to 4 carbon atoms.
Claim 3
Dependent Claim
22 words
A dyestuff mixture according to claim 1 wherein the weight proportion of one individual dyestuff of said formula is 10 to 90%.
Claim 4
Dependent Claim
22 words
A dyestuff mixture according to claim 2 wherein the weight proportion of one individual dyestuff of said formula is 30 to 70%.
Claim 5
Dependent Claim
14 words
A dyestuff mixture according to claim 1 containing two different dyestuffs of said formula.
Claim 6
Dependent Claim
14 words
A dyestuff mixture according to claim 1 wherein R 3 is methyl or ethyl.
Claim 7
Dependent Claim
18 words
A dyestuff mixture according to claim 1 wherein R 4 is alkyl of 1 to 3 carbon atoms.
Claim 8
Dependent Claim
24 words
A dyestuff mixture according to claim 1 wherein R 1 is alkyl of 1 to 3 carbon atoms, trifluoromethyl, chlorine, bromine, methoxy or ethoxy.
Claim 9
Dependent Claim
12 words
A dyestuff mixture according to claim 1 wherein R 1 is methyl.
Claim 10
Dependent Claim
19 words
A dyestuff mixture according to claim 1 wherein the individual dyestuffs differ at least in the R 2 substituent.
Claim 11
Dependent Claim
18 words
A dyestuff mixture according to claim 1 containing one dyestuff of said formula wherein R 2 is isopropyl.
Claim 12
Dependent Claim
18 words
A dyestuff mixture according to claim 1 containing one dyestuff of said formula wherein R 2 is n-propyl.
Claim 13
Dependent Claim
24 words
The process for preparing dyestuff mixtures according to claim 1 wherein at least two individual dyestuffs of said formula are mixed with each other.
Claim 14
Dependent Claim
45 words
The process for preparing dyestuff mixtures according to claim 1 which comprises diazotizing at least one amine of the formula ##STR8## and then coupling the diazotised amine onto a coupling component or a mixture of at least two different coupling components of the formula ##STR9##
Claim 15
Dependent Claim
29 words
The process for preparing dyestuff mixtures according to claim 1 which comprises replacing halogen with cyano in a mixture of at least two individual compounds of the formula ##STR10##
Claim 16
Dependent Claim
172 words
In the process for dyeing and printing hydrophobic fiber materials and mixtures thereof with natural fibers or regenerated cellulose fibers by dyeing and printing with an azo dyestuff-containing dyeing liquor or print paste, the improvement comprises said azo dyestuff being a mixture of monoazo dyestuffs comprising at least two different dyestuffs of the formula ##STR11## wherein R 1 is alkyl of 1 to 6 carbon atoms, cycllpentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 2 is alkyl of 1 to 3 carbon atoms and R 3 and R 4 , independently of each other, are alkyl of 1 to 4 carbon atoms or an individual monoazo dyestuff of the formula ##STR12## wherein R 5 is alkyl of 2 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 6 is alkyl of 1 to 3 carbon atoms and R 7 and R 8 , independently of each other, are alkyl of 1 to 4 carbon atoms.
Claim 17
Dependent Claim
172 words
In the process for dyeing and printing hydrophobic fiber materials and mixtures thereof with natural fibers or regenerated cellulose fibers by dyeing and printing with an azo dyestuff-containing dyeing liquor or print paste, the improvement comprises said azo dyestuff being a mixture of monoazo dyestuffs comprising at least two different dyestuffs of the formula ##STR11## wherein R 1 is alkyl of 1 to 6 carbon atoms, cycllpentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 2 is alkyl of 1 to 3 carbon atoms and R 3 and R 4 , independently of each other, are alkyl of 1 to 4 carbon atoms or an individual monoazo dyestuff of the formula ##STR12## wherein R 5 is alkyl of 2 to 6 carbon atoms, cyclopentyl, cyclohexyl, fluoro, chloro, bromo, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R 6 is alkyl of 1 to 3 carbon atoms and R 7 and R 8 , independently of each other, are alkyl of 1 to 4 carbon atoms.
References Cited (Backward Citations)
US3821195A
Cited
GB2030167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |