US4524172A
Expired / Lapsed
US
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Preparation of aqueous silicone dispersions for treating textiles
Assignee: Bayer AG
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Filing: 1983-11-14
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Granted: 1985-06-18
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Expires: 2003-11-14
Abstract
Abstract An aqueous dispersion approximately comprising by weight (A) 1-30 parts by weight of a polyether-siloxane, cross-linked via alkylenoxy bridges, of the general formula ##STR1## in which Z is divalent alkylenoxy radical with 2-8 C atoms, R is a polyether radical, x is an integer between 2 and 25, and y is an integer between 1 and 9, (B) 1-40 parts of a high-molecular polyethylene with an average molecular weight of above 15,000-50,000, (C) 1-10 parts of an anionic emulsifier, (D) 0-15 parts of a non-ionic emulsifier, and (E) 2-97 parts of water. has been found to be particularly stable and useful in the finishing of textiles.
Inventors
- 👤 Helmut Steinberger
- 👤 Helmut Kirschnek
- 👤 Josef Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:42
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5264; D06P1/5292; C; C08; C08L; C08L83/00; C08L83/10; C08L83/12; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/647; D06P1/5207; D06P1/5214; D06P1/5221
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
An aqueous dispersion by weight approximately consisting essentially of (A) 1-30 parts by weight of a polyether-siloxane, crosslinked via alkylenoxy bridges, of the general formula ##STR5## in which Z is an oxyalkyleneoxy radical with 2-8 C atoms, R is an alkyl-terminated polyether radical, x is an interger between 2 and 25, and y is an integer between 1 and 9, (B) 1-40 parts of a high-molecular polyethylene with an average molecular weight of above 15,000-50,000, (C) 1-10 parts of an anionic emulsifier, (D) 0-15 parts of a non-ionic emulsifier, and (e) 2-97 parts of water.
Claim 2
Dependent Claim
95 words
An aqueous dispersion by weight approximately consisting essentially of (A) 1-30 parts by weight of a polyether-siloxane, crosslinked via alkylenoxy bridges, of the general formula ##STR5## in which Z is an oxyalkyleneoxy radical with 2-8 C atoms, R is an alkyl-terminated polyether radical, x is an interger between 2 and 25, and y is an integer between 1 and 9, (B) 1-40 parts of a high-molecular polyethylene with an average molecular weight of above 15,000-50,000, (C) 1-10 parts of an anionic emulsifier, (D) 0-15 parts of a non-ionic emulsifier, and (e) 2-97 parts of water.
Claim 3
Dependent Claim
45 words
A dispersion according to claim 1, in which Z is oxybutylenoxy, R is a radical of the formula C m H 2m+1 (C 2 H 4 O) X (C 3 H 7 O) Y , m is 1-12, x is 0-40, and Y is 5-40.
Claim 4
Dependent Claim
22 words
A dispersion according to claim 2, wherein A is present in about 5-15 parts, and B is present in about 5-20 parts
Claim 5
Dependent Claim
73 words
A process for the preparation of an aqueous dispersion according to claim 1 comprising first forming a mixture comprising about 8-90% by weight of the crosslinked polyether-siloxane, 0.1-18% by weight of anionic emulsifier, 0-27% of a non-ionic emulsifier and 1-92% by weight of water, and adding the mixture to an aqueous polyethylene dispersion comprising about 5-40% by weight of polyethylene, 1-10% by weight of anionic emulsifier, and 0-15% by weight of non-ionic emulsifier.
Claim 6
Dependent Claim
69 words
A process for preparation of an aqueous dispersion according to claim 1, comprising first forming an emulsion comprising about 8-90% by weight of the crosslinked polyether-siloxane, 0.1-18% by weight of anionic emulsifier, 0-27% of non-ionic emulsifier and 1-92% of water, and mixing the emulsion with an aqueous polyethylene dispersion comprising about 5-40% by weight of polyethylene, 1-10% by weight of anionic emulsifier, and 0-15% by weight of non-ionic emulsifier.
Claim 7
Dependent Claim
33 words
In the finishing of a textile fabric by applying thereto a composition to improve its properties, the improvement which comprises employing as said composition an aqueous dispersion according to claim 1, and drying.
References Cited (Backward Citations)
GB1261784A
Cited
US4380451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |