US2966472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-cellular polyurethane coating resistant to discoloration
Assignee: Honeywell International Inc
•
Filing: 1957-06-26
•
Granted: 1960-12-27
•
Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Robert J Fiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:12
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/2805; C08G18/285; C08G18/2875; C08G18/30; C08G18/32; C08G18/3271; C08G18/36; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08G18/8051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A NON-CELLULAR POLYURETHANE COATING COMPOSITION PRODUCED BY REACTING A MONOBASIC FAT ACID TRIGLYCERIDE HAVING A HYDROZYL NUMBER OF AT LEAST 50 WITH AN AROMATIC POLYISOCYANATE IS SUCH PROPORTION THAT THE RATIO OF HYDROXYL GROUPS TO ISOCYANATE GROUPS IS IN THE RANGE OF 1:1.8 TO 1:2.5, REACTING UNDER ANHYDROUS CONDITIONS SAID MONOBASIC FAT ACID TRIGLYCERIDE-POLYISOCYANATE IN THE PRESENCE OF A LIQUID ORGANIC SOLVENT FREE FROM GROUPS REACTIVE WITH ISOCYANATE AND IN WHICH THE MONOBASIC FAT ACID TRIGLYCERIDE-POLYISOCYANATE IS SOLUBLE WITH A HYDROXYALKYLAMINE SELECTED FROM THE GROUP CONSISTING OF NMETHYLDIETHANOLAMINE, N-ETHYLDIETHANOLAMINE, N-PHENYLDIETHANOLAMINE, DIMETHYLETHANOLAMINE, TRIETHANOLAMINE, N - CYCLOHEXYLDIETHANOLAMINE, N-B-HYDROXYETHYLMORPHOLINE, N-PROPYLDIETHANOLAMINE, AT A TEMPERATURE WITHIN THE RANGE 0-50*C. AND IN SUCH PROPORTION THAT THE RATIO OF OH GROUPS IN THE HYDROXYALKYLAMINE TO FREE NCO GROUPS IN THE MONOBASIC FAT ACID TRIGLYCERIDE-POLYISOCYANATE IS IN THE RANGE OF 0.05:1 TO 0.8:1.
Claim 2
Dependent Claim
135 words
A NON-CELLULAR POLYURETHANE COATING COMPOSITION PRODUCED BY REACTING A MONOBASIC FAT ACID TRIGLYCERIDE HAVING A HYDROZYL NUMBER OF AT LEAST 50 WITH AN AROMATIC POLYISOCYANATE IS SUCH PROPORTION THAT THE RATIO OF HYDROXYL GROUPS TO ISOCYANATE GROUPS IS IN THE RANGE OF 1:1.8 TO 1:2.5, REACTING UNDER ANHYDROUS CONDITIONS SAID MONOBASIC FAT ACID TRIGLYCERIDE-POLYISOCYANATE IN THE PRESENCE OF A LIQUID ORGANIC SOLVENT FREE FROM GROUPS REACTIVE WITH ISOCYANATE AND IN WHICH THE MONOBASIC FAT ACID TRIGLYCERIDE-POLYISOCYANATE IS SOLUBLE WITH A HYDROXYALKYLAMINE SELECTED FROM THE GROUP CONSISTING OF NMETHYLDIETHANOLAMINE, N-ETHYLDIETHANOLAMINE, N-PHENYLDIETHANOLAMINE, DIMETHYLETHANOLAMINE, TRIETHANOLAMINE, N - CYCLOHEXYLDIETHANOLAMINE, N-B-HYDROXYETHYLMORPHOLINE, N-PROPYLDIETHANOLAMINE, AT A TEMPERATURE WITHIN THE RANGE 0-50*C. AND IN SUCH PROPORTION THAT THE RATIO OF OH GROUPS IN THE HYDROXYALKYLAMINE TO FREE NCO GROUPS IN THE MONOBASIC FAT ACID TRIGLYCERIDE-POLYISOCYANATE IS IN THE RANGE OF 0.05:1 TO 0.8:1.
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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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |