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US4668726A
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Cationic and non-ionic fluorochemicals and fibrous substrates treated therewith
Assignee: 3M Co
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Filing: 1985-12-30
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Granted: 1987-05-26
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Expires: 2005-12-30
Abstract
Abstract Cationic and non-ionic fluorochemicals, mixtures of cationic and non-ionic fluorochemicals, blends of the mixtures with fluorochemical poly(oxyalkylenes), and compositions of the fluorochemicals with hydrocarbon nonionic surfactants are provided. These fluorochemicals and compositions, in dispersions, emulsions and microemulsions, may be applied to porous fibrous substrates to give oil and water repellancy and soil resistance.
Inventors
- 👤 Richard D. Howells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:07
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0809; C08G18/0814; C08G18/09; C08G18/095; C08G18/28; C08G18/2805; C08G18/288; C08G18/2885; C08L; C08L33/00; C08L33/04; C08L33/14; C08L33/16; D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/425; D06M13/428; D06M15/00; D06M15/19; D06M15/37; D06M15/53; D06M15/564; D06M15/576; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/11
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A cationic fluorochemical comprising one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated carbon atoms, one or more N-containing moieties selected from carbodiimido and urylene, said radicals and moieties being bonded together by heterto atom-containing or organic linking groups, sand linking groups being free of active hydrogen atoms, and an organo amino nitrogen derived cationic moiety, said cationic moiety bonded to said N-containing moiety by hetero atom-containing or organic linking groups.
Claim 2
Dependent Claim
74 words
A cationic fluorochemical comprising one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated carbon atoms, one or more N-containing moieties selected from carbodiimido and urylene, said radicals and moieties being bonded together by heterto atom-containing or organic linking groups, sand linking groups being free of active hydrogen atoms, and an organo amino nitrogen derived cationic moiety, said cationic moiety bonded to said N-containing moiety by hetero atom-containing or organic linking groups.
Claim 3
Dependent Claim
134 words
A cationic fluorochemical according to claim 1 wherein said fluorochemical is represented by the general formula [R--Q--A(N═C═N--A).sub.x (Q).sub.z ].sub.p ZY where R is selected from hydrogen and terminal monovalent organic radicals which can contain a fluoroaliphatic radical, R f , each R being the same or different, Q is a divalent hetero atom-containing group or organic linking group or combinations thereof, each Q being the same or different, A is a divalent organic linking group which can contain a fluoroaliphatic radical, R f , with the proviso that at least one R or A contain R f , and A being the same or different, Z is an organo amine nitrogen-derived cationic moiety, Y is an anionic species, x is 1 to 20, z is zero or 1 and p is 1 to 3.
Claim 4
Dependent Claim
131 words
A cationic fluorochemical according to claim 1 wherein said fluorochemical is represented by the general formula [R--Q--A(NHCONH--A--).sub.x (Q).sub.z ].sub.p ZY where R is selected from hydrogen and terminal monovalent organic radicals which can contain a fluoroaliphatic radical, R f , each R being the same or different, Q is a divalent hetero atom-containing group or organic linking group, each Q being the same or different, A is a divalent organic linking group which can contain a fluoroaliphatic radical, R f , with the proviso that at least one R or A contain R f , each A being the same or different, Z is an organ amine nitrogen-derived cationic moiety, Y is an anionic species, x is 1 to 20, z is zero or 1 and p is 1 to 3.
Claim 5
Dependent Claim
172 words
A cationic fluorochemical according to claim 2 or 3 wherein R--Q is C 8 F 17 SO 2 N(C 2 H 5 )C 2 H 4 CONH-- with R being C 8 F 17 and Q being SO 2 N(C 2 H 5 )C 2 H 4 CONH, A is selected from --C 6 H 4 CH 2 C 6 H 4 --, --(CH 3 )C 6 H 3 --, --CH 2 C 6 H 4 CH 2 --, Q--Z is selected from NHCOOC 2 H 4 N + (CH 3 ) 2 C 2 H 5 and NHCOOC 2 H 4 N + (CH 3 ) 3 with Q being NHCOO and Z being C 2 H 4 N + (CH 3 ) 2 C 2 H 5 or C 2 H 4 N + (CH 3 ) 3 , Y is selected from CH 3 SO 4 - , C 2 H 5 SO 4 - and I - , p is 1, and x is from 1 to 5.
Claim 6
Dependent Claim
65 words
A non-ionic fluorochemical comprising one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated carbon atoms and one or more urylene moieties, said radicals and moieties being bonded together by hetero atom-containing or organic linking groups, said linking groups being free of active hydrogen atoms, and said non-ionic fluorochemical being a mixture of non-ionic fluorochemicals having an average urylene functionality greater than one.
Claim 7
Dependent Claim
65 words
A non-ionic fluorochemical comprising one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated carbon atoms and one or more urylene moieties, said radicals and moieties being bonded together by hetero atom-containing or organic linking groups, said linking groups being free of active hydrogen atoms, and said non-ionic fluorochemical being a mixture of non-ionic fluorochemicals having an average urylene functionality greater than one.
Claim 8
Dependent Claim
111 words
A non-ionic fluorochemical according to claim 5, wherein said fluorochemical is represented by the general formula R--Q--A--(NHCONH--A--).sub.x Q--R where R is selected from hydrogen and terminal monovalent organic radicals which can contain a fluoroaliphatic radical, R f , R being the same or different, Q is a divalent hereto atom-containing group or organic linking group, and Q being the same or different, A is a divalent organic linking group which can contain a fluoroaliphatic radical, R f , with the proviso that at least one R or A contain R f , and A being the same or different and x is a number greater than one up to about 10.
Claim 9
Dependent Claim
89 words
A nonionic fluorochemical according to claim 6 wherein R--Q is C 8 F 17 SO 2 N(C 2 H 5 )C 2 H 4 CONH-- with R being C 8 F 17 and Q being SO 2 N(C 2 H 5 )C 2 H 4 CONH, A is selected from --C 6 H 4 CH 2 C 6 H 4 --, --(CH 3 )C 6 H 3 --, --CH 2 C 6 H 4 CH 2 --, and x is a number greater than one up to about 10.
References Cited (Backward Citations)
US3398182A
Cited
US3329661A
Cited
US3462296A
Cited
US3574791A
Cited
US3728151A
Cited
US3458571A
Cited
US4165338A
Cited
US3916053A
Cited
US3896251A
Cited
US4024178A
Cited
US4013627A
Cited
US4029585A
Cited
US4215205A
Cited
US4172936A
Cited
US4174433A
Cited
US4144367A
Cited
US4190545A
Cited
US4264484A
Cited
US4325857A
Cited
US4473371A
Cited
US4401780A
Cited
US4426476A
Cited
US4566981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |