US2993813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coating a substrate with polyurethane foam
Assignee: Bayer AG
•
Filing: 1957-02-26
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Granted: 1961-07-25
•
Expires: 1977-02-26
Abstract
No abstract record available.
Inventors
- 👤 Tischbein Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:34
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/75; C08G18/721; C08G18/724; C08G18/73; C08G18/80; C08G18/8061; C08G2150/00; C08G2150/60; Y; Y10; Y10S; Y10S273/00; Y10S273/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
PROCESS FOR COATING THREADS, RIBBONS, WIRES, FABRICS, SHEETS AND THE LIKE WITH A CELLULAR POLYURETHANE WHICH COMPRISES APPLYING IN A SINGLE STEP TO THE MATERIAL TO BE COATED A FOAMABLE MIXTURE CONTAINING A POLYHYDROXY COMPOUND, WATER, AND AN ORGANIC POLYISOCYANATE SELECTED FROM THE GROUP CONSISTING OF DICYCLOHEXYLMETHANE-4,4''DIISOCYANATE, 1,4-CYCLOHEXYLENE DIISOCYANATE, HEXAMETHYLENE DIISOCYANATE, AND BLOCKED ISOCYANATES PREPARED BY REACTING AN ORGANIC POLYISOCYANATE WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENOLS, NAPHTHOLS, OXIMES, IMIDES, DIPHENYL AMINE, PHENYL METHYL PYRAZOLONE, CAPROLACTAM, MALONIC ACID ESTERS, ACETOACETIC ESTER AND ACETYLACETONE, AND SUBSEQUENTLY SUBJECTING THE MATERIAL COATED WITH SAID MIXTURE TO A HEAT-TREATMENT.
Claim 2
Dependent Claim
98 words
PROCESS FOR COATING THREADS, RIBBONS, WIRES, FABRICS, SHEETS AND THE LIKE WITH A CELLULAR POLYURETHANE WHICH COMPRISES APPLYING IN A SINGLE STEP TO THE MATERIAL TO BE COATED A FOAMABLE MIXTURE CONTAINING A POLYHYDROXY COMPOUND, WATER, AND AN ORGANIC POLYISOCYANATE SELECTED FROM THE GROUP CONSISTING OF DICYCLOHEXYLMETHANE-4,4''DIISOCYANATE, 1,4-CYCLOHEXYLENE DIISOCYANATE, HEXAMETHYLENE DIISOCYANATE, AND BLOCKED ISOCYANATES PREPARED BY REACTING AN ORGANIC POLYISOCYANATE WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF PHENOLS, NAPHTHOLS, OXIMES, IMIDES, DIPHENYL AMINE, PHENYL METHYL PYRAZOLONE, CAPROLACTAM, MALONIC ACID ESTERS, ACETOACETIC ESTER AND ACETYLACETONE, AND SUBSEQUENTLY SUBJECTING THE MATERIAL COATED WITH SAID MIXTURE TO A HEAT-TREATMENT.
References Cited (Backward Citations)
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US2657151A
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US2764565A
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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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |