US3016404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of crude alkylene oxide polyether
Assignee: Honeywell International Inc
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Filing: 1959-09-28
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Granted: 1962-01-09
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Expires: 1979-09-28
Abstract
No abstract record available.
Inventors
- 👤 William D Beauchamp
- 👤 Robert E Booth
- 👤 Edward R Degginger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/34; C07C41/44; C08; C08G; C08G65/00; C08G65/02; C08G65/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PROCESS FOR REFINING CRUDE ALKYLENE OXIDE POLYETHER CONTAINING ALKALI METAL HYDROXIDE CATALYST TO HIGH PURITY ALKYLENE OXIDE POLYETHER WHICH COMPRISES ADDING HCI AND WATER TO THE CRUDE ALKYLENE OXIDE POLYETHER, SAID HCI BEING ADDED IN AMOUNT TO REDUCE THE PH OF THE CRUDE ALKYLENE POLYETHER TO 2.2-6.0, SAID WATER BEING IN AN AMOUNT OF 1.5-6-PARTS BY WEIGHT WATER PER PART BY WEIGHT HCI, AND SEPARATING PRECIPITATE RESULTING FROM THE REACTION OF HCL WITH ALKALI METAL HYDROXIDE IN THE CRUDE ALKYLENE OXIDE POLYETHER.
Claim 2
Dependent Claim
83 words
A PROCESS FOR REFINING CRUDE ALKYLENE OXIDE POLYETHER CONTAINING ALKALI METAL HYDROXIDE CATALYST TO HIGH PURITY ALKYLENE OXIDE POLYETHER WHICH COMPRISES ADDING HCI AND WATER TO THE CRUDE ALKYLENE OXIDE POLYETHER, SAID HCI BEING ADDED IN AMOUNT TO REDUCE THE PH OF THE CRUDE ALKYLENE POLYETHER TO 2.2-6.0, SAID WATER BEING IN AN AMOUNT OF 1.5-6-PARTS BY WEIGHT WATER PER PART BY WEIGHT HCI, AND SEPARATING PRECIPITATE RESULTING FROM THE REACTION OF HCL WITH ALKALI METAL HYDROXIDE IN THE CRUDE ALKYLENE OXIDE POLYETHER.
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) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |