Patent US2657151A successfully refreshed from Google Patents.
US2657151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating of fabrics
Assignee: Bayer AG
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Filing: 1950-06-21
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Granted: 1953-10-27
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Expires: 1970-06-21
Abstract
No abstract record available.
Inventors
- 👤 Gensel Herbert
- 👤 Windemuth Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:51
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; D06M13/00; D06M13/322; D06M13/395
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS OF COATING TEXTILES WHICH COMPRISES IMPREGNATING SAID TEXTILES WITH AN AQUEOUS MEDIUM OF THE GROUP CONSISTING OF WATER, AN AQUEOUS SOLUTION OF AN ALIPHATIC DIAMINE AND AN AQUEOUS SOLUTION OF AN ALIPHATIC AMINO-ALCOHOL, COATING THE IMPREGNATED TEXTILES WITH A LIQUID MEDIUM CONTAINING AN ISOCYANATE MODIFIED POLYESTER THAT IS STILL SOLUBLE IN ORGANIC SOLVENTS AND WHOSE SOLE REACTIVE GROUPS ARE ISOCYANATE GROUPS, SAID AQUEOUS IMPREGNATING MEDIUM BEING PRESENT IN SAID TEXTILES IN AN AMOUNT SUFFICIENT TO PREVENT SUBSTANTIAL PENETRATION OF SAID LIQUID COATING MEDIUM THEREIN, AND EFFECTING CROSS-LINKING OF SAID ISOCYANATE MODIFIED POLYESTER BY TREATING SAID COATED TEXTILES WITH A CROSS-LINKING AGENT.
Claim 2
Dependent Claim
103 words
A PROCESS OF COATING TEXTILES WHICH COMPRISES IMPREGNATING SAID TEXTILES WITH AN AQUEOUS MEDIUM OF THE GROUP CONSISTING OF WATER, AN AQUEOUS SOLUTION OF AN ALIPHATIC DIAMINE AND AN AQUEOUS SOLUTION OF AN ALIPHATIC AMINO-ALCOHOL, COATING THE IMPREGNATED TEXTILES WITH A LIQUID MEDIUM CONTAINING AN ISOCYANATE MODIFIED POLYESTER THAT IS STILL SOLUBLE IN ORGANIC SOLVENTS AND WHOSE SOLE REACTIVE GROUPS ARE ISOCYANATE GROUPS, SAID AQUEOUS IMPREGNATING MEDIUM BEING PRESENT IN SAID TEXTILES IN AN AMOUNT SUFFICIENT TO PREVENT SUBSTANTIAL PENETRATION OF SAID LIQUID COATING MEDIUM THEREIN, AND EFFECTING CROSS-LINKING OF SAID ISOCYANATE MODIFIED POLYESTER BY TREATING SAID COATED TEXTILES WITH A CROSS-LINKING AGENT.
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) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |