US3639157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for finishing textile materials with a polymer of a vinyl compound and the reaction product of a polyol and an organic polyisocyanate
Assignee: Bayer AG
•
Filing: 1968-07-18
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Granted: 1972-02-01
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Expires: 1988-07-18
Abstract
Abstract Textile materials which have been treated with an aqueous liquor containing a polymer of a vinyl compound and the reaction product of excess organic polyisocyanate with a polyol. The textile materials have improved crease resistance.
Inventors
- 👤 Walter Wunder
- 👤 Wolfgang Klebert
- 👤 Heinz Herlinger
- 👤 Karl Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:14
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
39 words
The composition of claim 1 wherein the component having at least two hydroxyl groups is a polyhydric polyalkylene ether or a polyhydric polyester having a molecular weight of 800 to 3,500 and a hydroxyl number of 30 to 250.
Claim 2
Dependent Claim
15 words
The composition of claim 1 wherein the organic polyisocyanate is an aliphatic or cycloaliphatic diisocyanate.
Claim 3
Independent Claim
99 words
A method for finishing textile material comprising treating a textile material with an aqueous liquor consisting essentially of water and about 5 to 70 percent by weight of a mixture of (a) about 0.25 to about 4 parts by weight of a polymer prepared from a vinyl monomer and containing groups capable of reacting with isocyanate groups and (b) about 1 part by weight of a free isocyaNate group containing reaction product of a compound of molecular weight 500-6,000 having at least two hydroxyl groups with a stoichiometric excess of an organic polyisocyanate, and drying the treated textile material.
Claim 4
Dependent Claim
23 words
The method of claim 4 wherein the treated and dried textile material is submitted to the further step of storage at room temperature.
Claim 5
Dependent Claim
28 words
The method of claim 4 wherein the textile material is selected from the group consisting of cotton, regenerated cellulose, wool, silk, polyamide, polyurethane, polyester, polycarbonate, polyacrylonitrile and polypropylene.
Claim 6
Dependent Claim
15 words
The method of claim 4 wherein the drying is accomplished at 80* to 110* C.
Claim 7
Dependent Claim
10 words
The textile material prepared by the process of claim 4.
Claim 8
Independent Claim
107 words
A method for finishing textile materials comprising treating a textile material with an aqueous liquor consisting essentially of water and an amount effective to impart improved physical properties to the textile material when coated thereon of a mixture of (a) about 0.25 to about 4 parts by weight of a polymer prepared from a vinyl monomer and containing groups capable of reacting with isocyanate groups and (b) about 1 part by weight of a free isocyanate group containing reaction product of a compound of molecular weight 500-6,000 having at least two hydroxyl groups with a stoichiometric excess of an organic polyisocyanate, and drying the treated textile material.
Claim 9
Dependent Claim
10 words
The textile material prepared by the process of claim 9.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |