US4065259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon dye dispersion for exhaust disperse dyeing
Assignee: EIDP Inc
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Filing: 1976-04-23
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Granted: 1977-12-27
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Expires: 1996-04-23
Abstract
Abstract Fluorocarbon dye dispersion comprising an organic disperse dye; a certain normally liquid fluorocarbon having a fluorine to carbon atom ratio of at least 1.5, a solubility parameter of not greater than 7.0 and a critical temperature of at least 135° C., and, optionally, an effective amount of a compound having both surface activity and solubility in the normally liquid fluorocarbon, said dye dispersion being useful in the exhaust dyeing of disperse dyeable synthetic polymers, in the form of films, fibers or fabrics, by the process comprising contacting the polymer with the dye disperson at a temperature above the glass transition temperature of the polymer for a sufficient time to exhaust the dye onto the polymer.
Inventors
- 👤 Harold Leonard Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:36
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/653; D06P1/6533; C; C09; C09B; C09B67/00; C09B67/0071; C09B67/008; C09B67/0082; D06P1/60; D06P1/613; D06P1/62; D06P1/621; D06P1/622; D06P1/623; D06P1/627; D06P1/64; D06P1/642; D06P1/647; D06P1/655; D06P1/66; D06P1/667; D06P1/90; D06P1/92; D06P1/922; D06P1/924
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
141 words
Dye dispersion comprising: a. an organic disperse dye; and b. a normally liquid fluorocarbon having a fluorine to carbon atom ratio of at least 1.5, a solubility parameter of not greater than 7.0, a boiling point of at least 20°-25° C at atmospheric pressure, a critical temperature of at least 135° C. and being selected from the group consisting of 1. perfluoro(2,3-dimethylbutane), perfluorokerosene and its constituents boiling above 100° C or (CF 3 ) 2 CF(CF 2 CF 2 ) 2-4 CF(CF 3 ) 2 , 2. perfluorocycloaliphatic hydrocarbons, 3. chlorofluoroalkanes, 4. hydrofluoroalkanes, 5. hydrochlorofluoroalkanes, 6. perfluoroalkyl ethers, 7. hexafluoropropylene oxide polymers having a degree of polymerization of 1-50, 8. perfluoro(tri-C 1-12 alkylamines) and 9. unsaturated fluorocarbons having 3-4 perfluoroalkyl groups of 1-10 carbon atoms attached to the ##STR18## moiety, each of said groups (1)-(6)having no more than 18 carbon atoms.
Claim 2
Dependent Claim
141 words
Dye dispersion comprising: a. an organic disperse dye; and b. a normally liquid fluorocarbon having a fluorine to carbon atom ratio of at least 1.5, a solubility parameter of not greater than 7.0, a boiling point of at least 20°-25° C at atmospheric pressure, a critical temperature of at least 135° C. and being selected from the group consisting of 1. perfluoro(2,3-dimethylbutane), perfluorokerosene and its constituents boiling above 100° C or (CF 3 ) 2 CF(CF 2 CF 2 ) 2-4 CF(CF 3 ) 2 , 2. perfluorocycloaliphatic hydrocarbons, 3. chlorofluoroalkanes, 4. hydrofluoroalkanes, 5. hydrochlorofluoroalkanes, 6. perfluoroalkyl ethers, 7. hexafluoropropylene oxide polymers having a degree of polymerization of 1-50, 8. perfluoro(tri-C 1-12 alkylamines) and 9. unsaturated fluorocarbons having 3-4 perfluoroalkyl groups of 1-10 carbon atoms attached to the ##STR18## moiety, each of said groups (1)-(6)having no more than 18 carbon atoms.
Claim 3
Dependent Claim
13 words
The dispersion of claim 1 containing up to 5 volume % of water.
Claim 4
Dependent Claim
20 words
The dispersion of claim 1 wherein the liquid fluorocarbon has a fluorine to carbon atom ratio of at least 2.0.
Claim 5
Dependent Claim
18 words
The dispersion of claim 3 wherein the liquid fluorocarbon has a solubility parameter of not greater than 6.5.
Claim 6
Dependent Claim
14 words
The dispersion of claim 1 wherein the liquid fluorocarbon is a branched perfluoroaliphatic hydrocarbon.
Claim 7
Dependent Claim
13 words
The dispersion of claim 1 wherein the liquid fluorocarbon is a perfluorocycloaliphatic hydrocarbon.
Claim 8
Dependent Claim
12 words
The dispersion of claim 1 wherein the liquid fluorocarbon is a perfluoro(trialkylamine).
Claim 9
Dependent Claim
27 words
The dispersion of claim 1 wherein the liquid fluorocarbon is F[CF(CF 3 )CF 2 O] n CHFCF 3 wherein n is an integer within the range 1-50.
Claim 10
Dependent Claim
14 words
The dispersion of claim 8 wherein n is an integer within the range 3-6.
Claim 11
Dependent Claim
19 words
The dispersion of claim 9 wherein the liquid fluorocarbon is F[CF(CF 3 )CF 2 O] 3 CHFCF 3 .
Claim 12
Dependent Claim
28 words
The dispersion of claim 1 containing an effective amount of a surfactant having a hydrophilelipophile balance value of less than 4 and having solubility in the liquid fluorocarbon.
Claim 13
Dependent Claim
66 words
Single step exhaust dyeing process for dyeing disperse dyeable synthetic polymers in the form of films, fibers or fabrics, said process comprising contacting disperse dyeable synthetic polymer with a dye dispersion at a temperature above the glass transition temperature of the polymer for a sufficient time to exhaust the dye from the dispersion and dye the polymer, said dye dispersion comprising the dispersion of claim 1.
Claim 14
Dependent Claim
22 words
The process of claim 12 wherein the disperse dyeable synthetic polymer is polyethylene terephthalate and the temperature is at least 125° C.
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) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |