US3290387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxyalkylated dimethylol and trimethylol alkanes
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-05-07
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Granted: 1966-12-06
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Bernardy Claude
- 👤 Prillieux Marcel
- 👤 Muths Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:37
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE PRODUCT FORMED BY CONDENSING A C9 TO C15 ALKANAL WITH FORMALDEHYDE IN THE PRESENCE OF AN ALKALINE AGENT TO FORM A MIXTURE OF DIMETHYLOL AND TRIMETHYLOL ALKANES, SAID MIXTURE BEING FURTHER REACTED WITH A C2 TO C6 AKYLENE OXIDE AT A TEMPERATURE FROM ABOUT 60* TO 220*C., SAID PRODUCT COMPRISING A MIXTURE OF OXYALKYLATED DIMETHYLOL AND TRIMETHYLOL ALKANES HAVING THE FORMULAE:
Claim 2
Dependent Claim
62 words
THE PRODUCT FORMED BY CONDENSING A C9 TO C15 ALKANAL WITH FORMALDEHYDE IN THE PRESENCE OF AN ALKALINE AGENT TO FORM A MIXTURE OF DIMETHYLOL AND TRIMETHYLOL ALKANES, SAID MIXTURE BEING FURTHER REACTED WITH A C2 TO C6 AKYLENE OXIDE AT A TEMPERATURE FROM ABOUT 60* TO 220*C., SAID PRODUCT COMPRISING A MIXTURE OF OXYALKYLATED DIMETHYLOL AND TRIMETHYLOL ALKANES HAVING THE FORMULAE:
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |