US4229172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disperse dyeing of polyester with benzalketo derivatives as carriers: benzalacetone, methyl cinnamate etc.
Assignee: Sandoz AG
•
Filing: 1978-02-21
•
Granted: 1980-10-21
•
Expires: 1998-02-21
Abstract
Abstract Polyester or polyester blend textile material is dyed with a disperse dyestuff in the presence of a benzalketo derivative as a dyeing carrier.
Inventors
- 👤 Hans-Peter Baumann
- 👤 Hans-Georg Karmann
- 👤 Achim Wiedemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:05
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/82; D06P3/8204; D06P3/8214; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P3/34; D06P3/52; D06P3/54
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
93 words
A method of dyeing a polyester or polyester blend textile material with a disperse dyestuff which comprises exhaust dyeing in a dyebath to which has been added before the introduction of the textile material a dyeing carrier of formula ##STR3## wherein R is (C 1-4 )alkyl or (C 1-4 )alkoxy, each of R 1 and R 2 , independently, is hydrogen, halogen, methyl or ethyl, and each of R 3 and R 4 , independently, is hydrogen, halogen, hydroxyl, (C 1-2 )alkyl or (C 1-2 )alkoxy, or a mixture of such dyeing carriers.
Claim 2
Independent Claim
93 words
A method of dyeing a polyester or polyester blend textile material with a disperse dyestuff which comprises exhaust dyeing in a dyebath to which has been added before the introduction of the textile material a dyeing carrier of formula ##STR3## wherein R is (C 1-4 )alkyl or (C 1-4 )alkoxy, each of R 1 and R 2 , independently, is hydrogen, halogen, methyl or ethyl, and each of R 3 and R 4 , independently, is hydrogen, halogen, hydroxyl, (C 1-2 )alkyl or (C 1-2 )alkoxy, or a mixture of such dyeing carriers.
Claim 3
Dependent Claim
12 words
A method according to claim 1, in which R 1 is hydrogen.
Claim 4
Dependent Claim
12 words
A method according to claim 2, in which R 2 is hydrogen.
Claim 5
Dependent Claim
17 words
A method according to claim 1, in which one of R 3 and R 4 is hydrogen.
Claim 6
Dependent Claim
29 words
A method according to claim 4, in which one of R 3 and R 4 is hydrogen, and the other is hydrogen, chlorine, hydroxyl, methyl or (C 1-2 )alkoxy.
Claim 7
Dependent Claim
27 words
A method according to claim 1, in which one of R 3 and R 4 is halogen, and the other is halogen, hydroxyl or (C 1-2 )alkoxy.
Claim 8
Dependent Claim
17 words
A method according to claim 5, in which each of R 3 and R 4 is hydrogen
Claim 9
Dependent Claim
13 words
A method according to claim 7, in which the dyeing carrier is benzalacetone.
Claim 10
Dependent Claim
14 words
A method according to claim 7, in which the dyeing carrier is methyl cinnamate.
Claim 11
Dependent Claim
23 words
A method according to claim 1, in which the concentration of the carrier or carriers in the dyebath is 0.4 to 5 g/l.
Claim 12
Dependent Claim
24 words
A method according to claim 1, in which the dyeing carrier or carriers are used in association with an emulsifier or mixture of emulsifiers.
Claim 13
Dependent Claim
44 words
A method according to claim 2, in which the carrier or carriers constitute 5 to 95 weight percent, the emulsifier or mixture of emulsifiers 5 to 25 weight percent, and a solvent or mixture of solvents 0 to 80 weight percent of the formulation
Claim 14
Dependent Claim
46 words
A method according to claim 11, in which the emulsifier or mixture of emulsifiers is selected from mono-2-ethylhexyl sulphosuccinate, sulphonated castor oils and addition products of isooctylphenol with up to 100 units per molecule of ethylene oxide followed by chloroacetic acid to form a terminating group.
Claim 15
Dependent Claim
46 words
A method according to claim 12, in which the solvent or mixture of solvents is selected from polyethylene glycols up to a molecular weight of 600, (C 1-4 ) alkanols, (C 2-4 )glycols, acetone, (C 1-4 )alkyl benzoates and mono-, di- and tri(C 1-2 )alkyl-substituted benzenes.
Claim 16
Dependent Claim
29 words
A method according to claim 1, in which the amount of disperse dyestuff used is 0.2 to 8% of the weight of the polyester or polyester blend textile material.
Claim 17
Dependent Claim
17 words
A method according to claim 1, in which the polyester blend textile material contains wool or cotton.
Claim 18
Dependent Claim
26 words
A formulation comprising a dyeing carrier or mixture of dyeing carriers of formula I, as defined in claim 1 and an emulsifier or mixture of emulsifiers.
Claim 19
Dependent Claim
48 words
A formulation according to claim 17, containing, by weight of said formulation, 5 to 95 weight percent of one or more dyeing carriers, 5 to 25 weight percent of an emulsifier or mixture of emulsifiers, and 0 to 80 weight percent of a solvent or mixture of solvents.
Claim 20
Dependent Claim
46 words
A formulation according to claim 17, in which the emulsifier or mixture of emulsifiers is selected from mono-2-ethylhexyl sulphosuccinate, sulphonated castor oils and addition products of isooctylphenol with up to 100 units per molecule of ethylene oxide followed by chloroacetic acid to form a terminating group.
Claim 21
Dependent Claim
45 words
A formulation according to claim 17, in which the solvent or mixture of solvents is selected from polyethylene glycols up to a molecular weight of 600, (C 1-4 )alkanols, (C 2-4 )glycols, acetone, (C 1-4 )alkyl benzoates and mono-, di- and tri(C 1-2 )alkyl-substituted benzenes.
Claim 22
Dependent Claim
24 words
A method according to claim 1 wherein the carrier and emulsifier are in a formulation which is added to the dyebath prior to dyeing.
Claim 23
Dependent Claim
16 words
A method according to claim 21 wherein the formulation contains a solvent or mixture of solvents.
Claim 24
Dependent Claim
14 words
A formulation according to claim 17 which contains a solvent or mixture of solvents.
Claim 25
Dependent Claim
12 words
A process according to claim 1 wherein the polyester is polyethylene terephtalate.
Claim 26
Dependent Claim
18 words
A process according to claim 1 wherein the dyeing is effected at a temperature up to 100° C.
Claim 27
Dependent Claim
18 words
A process according to claim 10 wherein the dyeing is effected at a temperature up to 100° C.
Claim 28
Dependent Claim
18 words
A process according to claim 26 wherein the material being dyed is a blend of polyester and wool.
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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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |