US3786005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyzing urethane foam polymerization with 4-(2-dimethylaminomethyl)morpholine
Assignee: Air Products and Chemicals Inc
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Filing: 1972-08-22
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Granted: 1974-01-15
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Expires: 1992-08-22
Abstract
Abstract A PRECURSOR MIXTURE COMPRISING ORGANIC MATERIALS HAVING A PLURALITY OF ISOCYANATO GROUPS PER MOLECULE AND ORGANIC MATERIALS HAVING A PLUTALITY OF HYDROXY GROUPS PER MOLECULE, SAID PRECURSOR CONTAINING MODIFYING AGENTS SUCH AS SURFACTANTS, FILLERS, FOAMING AGENTS, DYES AND/OR SIMILAR MINOR COMPONENTS, IS TRANSFORMED INTO A USEFUL POLYURETHANE FOAM STRUCTURE BY RELIANCE UPON 4-(2-DIMETHYLAMINOETHYL)MORPHOLINE AS THE PRINCIPAL AMINE CATALYST FOR THE POLYMERIZATION.
Inventors
- 👤 Ibrahim S Bechara
- 👤 Rocco I Mascioli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:59
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/20; C08G18/2009; C08G18/2018
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |