US5164252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophobizing and oleophobizing compositions
Assignee: Bayer AG
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Filing: 1990-11-21
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Granted: 1992-11-17
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Expires: 2010-11-21
Abstract
Abstract Phobicity effects of high quality and permanence are obtained on textile materials of the most diverse types if these are finished with combinations of A) a polymer containing perfluoroalkyl groups and B) a cationically modified polyurethane. The new compositions are also distinguished by a comparatively low content of expensive fluorine compounds.
Inventors
- 👤 Wolfgang Henning
- 👤 Walter Meckel
- 👤 Thomas Munzmay
- 👤 Wilfried Kortmann, deceased
- 👤 Peter Selinger
- 👤 Peter Nussbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:11
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/21; D06M15/263; D06M15/277; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
22 words
Hydrophobizing and eleophobizing compositions containing (A) a polymer containing perfluoroalkyl groups and (B) a cationically modified polyurethane which does not contain fluorine.
Claim 2
Dependent Claim
22 words
Hydrophobizing and eleophobizing compositions containing (A) a polymer containing perfluoroalkyl groups and (B) a cationically modified polyurethane which does not contain fluorine.
Claim 3
Dependent Claim
30 words
Compositions according to claim 1, characterized in that polymers containing a perfluoroalkyl group having 4 to 20 carbon atoms, which can be interrupted by oxygen, are employed as component (A).
Claim 4
Dependent Claim
26 words
Compositions according to claim 1 or 2, characterized in that component (A) is an acrylate polymer having a fluorine content of 20 to 45% by weight.
Claim 5
Dependent Claim
36 words
Compositions according to claim 1, characterized in that polyurethanes which have been built-up by also using compounds which contain a saturated or unsaturated hydrocarbon radical having 2 to 22 carbon atoms are employed as component (B).
Claim 6
Dependent Claim
58 words
Compositions according to claim 1 characterized in that component (B) contain build-up components containing acylurea groups of the formula ##STR3## wherein R denotes a saturated or unsaturated aliphatic hydrocarbon radical having up to 35 carbon atoms, or an aromatic hydrocarbon radical having 6 to 10 carbon atoms or an araliphatic hydrocarbon radical having 7 to 10 carbon atoms.
Claim 7
Dependent Claim
65 words
Compositions according to claim 1, characterized in that the component (B) contain build-up components containing acylurea groups of the formula ##STR4## the amount of which is chosen so that the polyisocyanate addition product contains 0.1 to 20% by weight, based on the solids content, of the structural unit of the formula ##STR5## which forms the acylurea groups mentioned and wherein R has the abovementioned meaning.
Claim 8
Dependent Claim
22 words
Compositions according to claim 1, characterized in that the polyurethane component (B) is used in the form of aqueous solutions or dispersions.
Claim 9
Dependent Claim
42 words
In the finishing of a textile wherein the textile is contacted with a polymer containing a perfluoroalkyl group, the improvement wherein the polymer is admixed with a cationically modified polyurethane which does not contain fluorine, thereby enhancing the effect of the polymer.
Claim 10
Dependent Claim
42 words
In the finishing of a textile wherein the textile is contacted with a polymer containing a perfluoroalkyl group, the improvement wherein the polymer is admixed with a cationically modified polyurethane which does not contain fluorine, thereby enhancing the effect of the polymer.
Claim 11
Dependent Claim
11 words
A textile structure finished with a composition according to claim 1.
Claim 12
Dependent Claim
10 words
A textile structure produced by the process of claim 8.
References Cited (Backward Citations)
US4636545A
Cited
US4616061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-17 | 1996-05-18 | 1996-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-17 | 2000-05-18 | 2000-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-17 | 2004-05-18 | 2004-11-17 | $7700.00 | Window Closed / Lapsed |