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US4534770A
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Multi-ring fluorinated carbamates with textiles soil repellent activity
Assignee: CNA Holdings LLC
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Filing: 1984-11-23
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Granted: 1985-08-13
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Expires: 2004-11-23
Abstract
Abstract Multi-ring fluorinated carbamates are disclosed which have excellent anti-soiling properties, durability and resistance to laundering. The compounds are represented by the formula ##STR1## wherein R f is a fluorinated radical. Compositions containing at least 10% of such compounds are also disclosed, as well as polyester and nylon fibers having such compounds incorporated therein.
Inventors
- 👤 Michael G. Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:20
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06; D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/425; D06M13/428; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922; Y10S8/924; Y10S8/93
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
102 words
A polyester or polyamide fiber having incorporated therewith a compound of the formula: ##STR13## wherein R f is a fluorinated radical of the formula --W(C n F 2n )Y wherein W has from 1 to 10 carbon atoms and is selected from alkylene and W'--Z--(W") b where W' and W" are alkylene, Z is O, S, NHCO, or N (R)SO 2 wherein R is H or lower alkyl, and b is 0 or 1, Y is hydrogen, fluoro, or perfluoroalkoxy of 1 to 6 carbon atoms, and n is 2 to 20; in an amount sufficient to impart oil or water repellency.
Claim 2
Dependent Claim
102 words
A polyester or polyamide fiber having incorporated therewith a compound of the formula: ##STR13## wherein R f is a fluorinated radical of the formula --W(C n F 2n )Y wherein W has from 1 to 10 carbon atoms and is selected from alkylene and W'--Z--(W") b where W' and W" are alkylene, Z is O, S, NHCO, or N (R)SO 2 wherein R is H or lower alkyl, and b is 0 or 1, Y is hydrogen, fluoro, or perfluoroalkoxy of 1 to 6 carbon atoms, and n is 2 to 20; in an amount sufficient to impart oil or water repellency.
Claim 3
Dependent Claim
61 words
A process of incorporating a compound of claim 1 into the surface of a polyester or polyamide fiber which comprises contacting said compound in liquid medium with said fiber and thereafter annealing the resulting fiber at elevated temperature, the amount of said compound and the time and temperature of annealing being sufficient to impart oil or water repellency to said fiber.
Claim 4
Dependent Claim
126 words
A polyester or polyamide fiber having incorporated therewith a composition comprising at least 10% of a compound of the formula set forth in claim 1 in admixture with from 90 to 5% of a compound of the formula: ##STR14## wherein R f is a fluorinated radical of the formula --W(C n F 2n )Y wherein W has from 1 to 10 carbon atoms and is selected from alkylene and W'--Z--(W") b where W' and W" are alkylene, Z is O, S, NHCO, or N(R)SO 2 wherein R is H or lower alkyl, and b is 0 or 1, Y is hydrogen, fluoro, or perfluoroalkoxy of 1 to 6 carbon atoms, and n is 2 to 20; in an amount sufficient to impart oil or water repellency.
Claim 5
Dependent Claim
61 words
A process of incorporating a compound of claim 3 into the surface of a polyester of polyamide fiber which comprises contacting said compound in liquid medium with said fiber and thereafter annealing the resulting fiber at elevated temperature, the amount of said compound and the time and temperature of annealing being sufficient to impart oil or water repellency to said fiber.
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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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |