US4004048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid fixation of agents on flexible substrates
Assignee: EIDP Inc
•
Filing: 1975-05-28
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Granted: 1977-01-18
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Expires: 1995-05-28
Abstract
Abstract Non-aqueous process for improving a functional property of flexible, natural and synthetic, organic polymeric substrates, such as textiles, film and paper, for example, polyethylene terephthalate or cotton fabric, by applying thereto an agent other than a dye, which agent is capable of imparting the desired improved functional property to the substrate, which process comprises: 1. applying said agent to the substrate from a liquid medium; 2. optionally, drying the substrate to remove the liquid while substantially retaining the agent on the substrate; and 3. contacting the agent-treated substrate with a fluorocarbon fluid at a temperature and for a time sufficient to effect fixation of the agent on the substrate, said fluorocarbon having an atmospheric pressure boiling point of at least 25° C., a fluorine to carbon atom ratio of at least 1.5 and a solubility parameter of not greater than 7.0 and being selected from the group consisting of saturated fluorocarbons and perfluorotrialkyl and perfluorotetraalkyl ethylenes.
Inventors
- 👤 Harold L. Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/20; D06P5/2066; D06P5/2077; C; C11; C11D; C11D17/00; C11D17/04; C11D17/049; D06B; D06B19/00; D06B19/0005; D06B19/0064; D06M; D06M13/00; D06M13/08; D06M23/00; D06M23/10; D06P1/00; D06P1/16; D06P1/44; D06P1/60; D06P1/613; D06P1/64; D06P1/651; D06P1/65106; D06P1/65131; D06P1/6515; D06P1/65156; D06P1/90; D06P5/02; D06P5/04
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
139 words
Non-aqueous process for improving a functional property of natural and synthetic, organic, polymeric flexible substrates by applying thereto a non-dye agent which is capable of imparting the desired improved functional property to the substrate, which process comprises: a. applying said agent to the substrate from a liquid medium; b. optionally, drying the substrate to remove the liquid while substantially retaining the agent on the substrate; and c. contacting the agent-treated substrate with a fluorocarbon fluid at a temperature and for a time sufficient to effect fixation of the agent on the substrate, said fluorocarbon having an atmospheric pressure boiling point of at least 25° C., a fluorine to carbon atom ratio of at least 1.5 and a solubility parameter of not greater than 7.0 and being selected from the group consisting of saturated fluorocarbons and perfluorotrialkyl and perfluorotetraalkyl ethylenes.
Claim 2
Dependent Claim
139 words
Non-aqueous process for improving a functional property of natural and synthetic, organic, polymeric flexible substrates by applying thereto a non-dye agent which is capable of imparting the desired improved functional property to the substrate, which process comprises: a. applying said agent to the substrate from a liquid medium; b. optionally, drying the substrate to remove the liquid while substantially retaining the agent on the substrate; and c. contacting the agent-treated substrate with a fluorocarbon fluid at a temperature and for a time sufficient to effect fixation of the agent on the substrate, said fluorocarbon having an atmospheric pressure boiling point of at least 25° C., a fluorine to carbon atom ratio of at least 1.5 and a solubility parameter of not greater than 7.0 and being selected from the group consisting of saturated fluorocarbons and perfluorotrialkyl and perfluorotetraalkyl ethylenes.
Claim 3
Dependent Claim
25 words
Process of claim 1 wherein the substrate is a polymer having a glass transition temperature and heating is carried out above the glass transition temperature.
Claim 4
Dependent Claim
10 words
Process of claim 2 wherein the polymer is a nylon.
Claim 5
Dependent Claim
10 words
Process of claim 2 wherein the polymer is a polyester.
Claim 6
Dependent Claim
11 words
Process of claim 4 wherein the polyester is a polyethylene terephthalate.
Claim 7
Dependent Claim
12 words
Process of claim 1 wherein the solubility parameter is less than 6.5.
Claim 8
Dependent Claim
16 words
Process of claim 6 wherein the fluorocarbon is a perfluoroalkane of 9 to 16 carbon atoms.
Claim 9
Dependent Claim
27 words
Process of claim 6 wherein the fluorocarbon is of the formula F[CF(CF 3 )CF 2 O] n CF 2 CF 3 wherein n is at least 3.
Claim 10
Dependent Claim
26 words
Process of claim 6 wherein the saturated fluorocarbon is of the formula F[CF(CF 3 )CF 2 O] n CHFCF 3 wherein n is at least 3.
Claim 11
Dependent Claim
8 words
Process of claim 9 wherein n is 3-9.
Claim 12
Dependent Claim
9 words
Process of claim 6 wherein the fluorocarbon is perfluorotributylamine.
Claim 13
Dependent Claim
16 words
Process of claim 1 wherein the agent-treated substrate is dried before being contacted with fluorocarbon fluid.
Claim 14
Dependent Claim
11 words
Process of claim 1 wherein the agent-treated substrate is heat set.
Claim 15
Dependent Claim
12 words
Process of claim 1 wherein the agent is an ultraviolet light screen.
Claim 16
Dependent Claim
10 words
Process of claim 1 wherein the agent is a bacteriostat.
Claim 17
Dependent Claim
11 words
Process of claim 1 wherein the agent is a flame retardant.
Claim 18
Dependent Claim
12 words
Process of claim 1 wherein the agent is a durable press finish.
Claim 19
Dependent Claim
9 words
Process of claim 1 wherein the substrate is cotton.
Claim 20
Dependent Claim
16 words
Process of claim 1 wherein the fluorocarbon has a boiling point of at least 125° C.
References Cited (Backward Citations)
US3784355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |