Patent US4554198A successfully refreshed from Google Patents.
US4554198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof and air-tight, moisture-conducting textile material
Assignee: Individual
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Filing: 1985-03-28
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Granted: 1985-11-19
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Expires: 2005-03-28
Abstract
Abstract The invention relates to a waterproof and air-tight, moisture-conducting textile material (1) which has a coating (3) of coagulated polyurethane containing preferably a great number of micropores, and which has a water vapor permeability of more than 5000 g/m 2 in 24 hours.
Inventors
- 👤 Hubert von Blucher
- 👤 Hasso von Blucher
- 👤 Ernest de Ruiter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:33
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/24998; Y10T428/249986; Y10T428/31504; Y10T428/31551; Y10T442/00; Y10T442/20; Y10T442/2139; Y10T442/2148; Y10T442/2213; Y10T442/2221; Y10T442/2246
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
56 words
A textile material produced by coating a textile fabric with a dispersion in a solvent of a pre-coagulated polyurethane, removing the solvent to complete coagulation of the polyurethane, and drying to form a coating having a large number of micropores, the textile material having a water vapor permeability of 5,000 to 20,000 g/m 2 .24 h.
Claim 2
Dependent Claim
56 words
A textile material produced by coating a textile fabric with a dispersion in a solvent of a pre-coagulated polyurethane, removing the solvent to complete coagulation of the polyurethane, and drying to form a coating having a large number of micropores, the textile material having a water vapor permeability of 5,000 to 20,000 g/m 2 .24 h.
Claim 3
Dependent Claim
16 words
A textile material according to claim 1, wherein additional protective agents are supported by the polyurethane.
Claim 4
Dependent Claim
14 words
A textile material according to claim 1, carrying active carbon particles in the polyurethane.
Claim 5
Dependent Claim
14 words
A textile material according to claim 1, wherein the coating is modified by silicones.
Claim 6
Dependent Claim
16 words
A textile material according to claim 1, in the form of an article of protective clothing.
Claim 7
Dependent Claim
13 words
A textile material according to claim 1, in the form of a tarpaulin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |