US3949136A
Expired / Lapsed
US
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Fluorine-containing organopolysiloxanes, process for their use
Assignee: Novartis AG
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Filing: 1975-03-24
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Granted: 1976-04-06
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Expires: 1995-03-24
Abstract
Abstract New fluorine-containing organopolysiloxanes are provided which are obtained by reaction in known manner of organopolysiloxanes which contain hydrogen atoms bonded to silicon, a perfluoroalkyl compound for the formula Rf - SO2 - NH - CH2 - CH = CH2 wherein Rf represents perfluoroalkyl with 6 to 14 carbon atoms, and optionally a fluorine-free vinyl monomer. These new addition products are useful as oil- and water repellents for fibrous textile materials.
Inventors
- 👤 Hans Deiner
- 👤 Franz Mosch
- 👤 Bernhard Sandner
- 👤 Willy Bernheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:50
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/657; C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/392; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A method of rendering organic fibre material oil and water repellent, which comprises treating said material with a solution or dispersion of the reaction products of a. organopolysiloxanes in which hydrogen and either alkyl or aryl groups are bonded to silicon, b. a perfluoroalkyl compound of the formula R.sub.f --SO.sub.2 --NH--CH.sub.2 --CH=CH.sub.2 wherein R f represents perfluoroalkyl with 6 to 14 carbon atoms, and optionally c. a fluorine-free vinyl monomer.
Claim 2
Independent Claim
70 words
A method of rendering organic fibre material oil and water repellent, which comprises treating said material with a solution or dispersion of the reaction products of a. organopolysiloxanes in which hydrogen and either alkyl or aryl groups are bonded to silicon, b. a perfluoroalkyl compound of the formula R.sub.f --SO.sub.2 --NH--CH.sub.2 --CH=CH.sub.2 wherein R f represents perfluoroalkyl with 6 to 14 carbon atoms, and optionally c. a fluorine-free vinyl monomer.
Claim 3
Dependent Claim
45 words
The method according to claim 1, wherein said reaction products are the reaction product of from 1 to 5 gram atoms of the organopolysiloxane (a), 1 mole of the perfluoroalkyl compound (b) and optionally, up to 3 moles of the fluorine free vinyl monomer (c).
Claim 4
Dependent Claim
22 words
The method according to claim 2, wherein the molar ratio between the perfluoroalkyl compound (b) and the vinyl monomer (c) is 1:1.
Claim 5
Dependent Claim
27 words
The method according to claim 2, wherein the molar ratio is 2 to 3 gram atoms of said organopolysiloxane (a) to 1 mole of said perfluoroalkyl compound.
Claim 6
Dependent Claim
20 words
The method according to claim 1, wherein the polysiloxanes (a) have a viscosity from 1 to 1000 centistokes at 20°C.
Claim 7
Dependent Claim
50 words
The method according to claim 5, wherein the polysiloxanes (a) have the formulae ##EQU5## or ##EQU6## wherein R 1 represents alkyl with 1 to 4 carbon atoms, R 2 and R 3 represent alkyl with 1 to 4 carbon atoms or phenyl, and n or (n+m) is 2 to 300.
Claim 8
Dependent Claim
32 words
The method according to claim 6, wherein in the polysiloxanes (a), R 1 represents methyl or ethyl, R 2 represents methyl, ethyl or phenyl, and n or (n+m) is 25 to 200.
Claim 9
Dependent Claim
38 words
The method according to claim 5, wherein the polysiloxanes (a) are a hydrogen methyl polysiloxane having 20 to 40 centistokes at 20°C and a polysiloxane copolymer of hydrogen methyl siloxane and dimethyl siloxane having 200 centistokes at 20°C.
Claim 10
Dependent Claim
70 words
The method according to claim 1, wherein the fluorine-free vinyl monomers are (1) vinyl ethers with 8 to 18 carbon atoms in the radical which is substituted at the vinyl ether group, (2) vinyl esters of aliphatic straight chain or branched acids with at least 6 carbon atoms, (3) α-olefins with 6 to 18 carbon atoms, (4) alkyl ethers or alkyl esters, (5) vinyl halides or (6) aromatic vinyl compounds.
Claim 11
Dependent Claim
23 words
The method according to claim 9, wherein said fluorine-free vinyl monomers are vinyl esters of branched acids with 9 to 11 carbon atoms.
Claim 12
Dependent Claim
19 words
The method according to claim 9, wherein said fluorine-free vinyl monomers are α-olefins with 6 to 10 carbon atoms.
Claim 13
Dependent Claim
28 words
The method according to claim 1, wherein component (b) is of the formula CF.sub.3 --(CF.sub.2).sub.n --SO.sub.2 --NH--CH.sub.2 --CH=CH.sub.2 wherein n is a whole number from 7 to 11.
References Cited (Backward Citations)
US3597457A
Cited
US3716517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |