US3325547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyoxyalkylene compounds
Assignee: Texaco Inc
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Filing: 1963-10-21
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Granted: 1967-06-13
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Cour
- 👤 William L Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:25
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/03; C07C41/34; C07C41/46; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A STABILIZED POLYETHER TRIOL COMPRISING A POLYETHER TRIOL HAVING A MOLECULAR WEIGHT WITHIN THE RANGE OF ABOUT 2,000 TO ABOUT 5,000 PREPARED BY THE ALKOXYLATION OF A TRIOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND TRIMETHYLOLPROPANE WITH ABOUT 80 TO ABOUT 100 MOL PERCENT OF PROPYLENE OXIDE AND, CORRESPONDINGLY FROM ABOUT 20 TO 0 MOL PERCENT OF ETHYLENE OXIDE HAVING INCORPORATED THEREWITH A STABILIZING AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRIETHYLENEDIAMINE, 2-METHYLTRIETHYLENEDIAMINE AND 2-ETHYLTRIETHYLENEDIAMINE.
Claim 2
Dependent Claim
79 words
A STABILIZED POLYETHER TRIOL COMPRISING A POLYETHER TRIOL HAVING A MOLECULAR WEIGHT WITHIN THE RANGE OF ABOUT 2,000 TO ABOUT 5,000 PREPARED BY THE ALKOXYLATION OF A TRIOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND TRIMETHYLOLPROPANE WITH ABOUT 80 TO ABOUT 100 MOL PERCENT OF PROPYLENE OXIDE AND, CORRESPONDINGLY FROM ABOUT 20 TO 0 MOL PERCENT OF ETHYLENE OXIDE HAVING INCORPORATED THEREWITH A STABILIZING AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRIETHYLENEDIAMINE, 2-METHYLTRIETHYLENEDIAMINE AND 2-ETHYLTRIETHYLENEDIAMINE.
References Cited (Backward Citations)
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US2687378A
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US3164558A
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US3179606A
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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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |