Patent US4500438A successfully refreshed from Google Patents.
US4500438A
Expired / Lapsed
US
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Multi-ring fluorinated carbamates with textile soil repellent activity
Assignee: CNA Holdings LLC
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Filing: 1983-06-24
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Granted: 1985-02-19
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Expires: 2003-06-24
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
2026-10-30 08:35
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06; D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/425; D06M13/428
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
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.
Claim 2
Dependent Claim
83 words
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.
Claim 3
Dependent Claim
22 words
A compound according to claim 1 wherein W is alkylene of 2 to 6 carbon atoms and n is 2 to 12.
Claim 4
Dependent Claim
47 words
A compound according to claim 1 wherein R f is selected from --CH 2 CH 2 (CF 2 ) g CF 3 or --CH 2 CH 2 (CF 2 ) h OCF(CF 3 ) 2 wherein g is 5 to 11 and h is 4 to 10.
Claim 5
Dependent Claim
30 words
A compound according to claim 1 wherein R f is --CH 2 CH 2 (CF 2 CF 2 ) j CF 2 CF 3 and j is 2 to 5.
Claim 6
Dependent Claim
106 words
A composition comprising at least 10% of a compound of the formula (I) ##STR14## in admixture with from 90 to 5% of a compound of the formula (II) ##STR15## 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 were 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.
Claim 7
Dependent Claim
106 words
A composition comprising at least 10% of a compound of the formula (I) ##STR14## in admixture with from 90 to 5% of a compound of the formula (II) ##STR15## 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 were 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.
Claim 8
Dependent Claim
22 words
A composition according to claim 5 wherein W is alkylene of 2 to 6 carbon atoms and n is 2 to 12.
Claim 9
Dependent Claim
47 words
A composition according to claim 5 wherein R f is selected from --CH 2 CH 2 (CF 2 ) g CF 3 or --CH 2 CH 2 (CF 2 ) h OCF(CF 3 ) 2 wherein g is 5 to 11 and h is 4 to 10.
Claim 10
Dependent Claim
30 words
A composition according to claim 5 wherein R f is --CH 2 CH 2 (CF 2 CF 2 ) j CF 2 CF 3 and j is 2 to 5.
Claim 11
Dependent Claim
21 words
A composition according to claim 5 which additionally comprises 0 to 30% of isomers and homologues of compounds I and II.
Claim 12
Dependent Claim
22 words
A composition according to claim 5 comprising from 15 to 40% of Compound (I) and from 50 to 80% of Compound (II).
References Cited (Backward Citations)
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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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |