US3332934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trialkylolamine polyether polyols
Assignee: Honeywell International Inc
•
Filing: 1965-05-21
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Granted: 1967-07-25
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Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 Robert E Booth
- 👤 Edward R Degginger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:38
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/069; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A POLYETHER POLYOL COMPOSITION PREPARED BY A PROCESS COMPRISING ADMIXING A CO-INITIATOR SELECTED FROM THE GROUP CONSISTING OF SUCROSE, SORBITOL, AND ALPHA-METHYL GLUCOSIDE WITH TRIETHANOLAMINE IN THE PROPORTION OF ABOUT 55 TO ABOUT 575 PARTS BY WEIGHT CO-INITIATOR TO ABOUT 100 PARTS BY WEIGHT TRIETHANOLAMINE, PASSING PROPYLENE OXIDE IN DIRECT CONTACT WITH SAID MIXTURE OF CO-INITIATOR AND TRIETHANOLAMINE WHILE MAINTAINING THE MIXTURE AT A TEMPPERATURE WITHIN THE RANGE OF ABOUT 60*C. TO ABOUT 140* C., AND CONTINUING THE PROCEDURE UNTIL A POLYETHER POYOL COMPOSITION HAVING A HYDROXYL NUMBER FROM ABOUT 400 TO ABOUT 600 IS OBTAINED.
References Cited (Backward Citations)
US2902478A
Cited
US3225028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |