US3031504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine-epihalohydrin-alkanol amine reaction product
Assignee: Universal Oil Products Co
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Filing: 1958-12-03
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Granted: 1962-04-24
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Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Pollitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:31
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
THE REACTION PRODUCT FORMED BY FIRST REACTING AT A TEMPERATURE OF FROM ABOUT 20* TO ABOUT 80*C. AND FOR A TIME PERIOD OF FROM ABOUT 1 TO ABOUT 4 HOURS ONE MOL PROPORTION OF AN ALIPHATIC AMINE CONSISTING OF CARBON, HYDROGEN AND NITROGEN AND CONTAINING FROM 12 TO 40 CARBON ATOMS AND A STRAIGHT CHAIN OF AT LEAST 3 CARBON ATOMS ATTACHED TO A NITROGEN ATOM AND HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO THE NITROGEN ATOM, WITH FROM 1 TO 3 MOL PROPORTIONS OF AN EPIHALOHYDRIN COMPOUND SELECTED FROM THE GROUP CONSISTING OF EPICHLORHYDRIN, 1,2-EPOXY-4-CHLOROBUTANE, 2,3-EPOXY-4-CHLOROBUTANE, 1,2-EPOXY-5-CHLOROPENTANE AND 2,3-EPOXY-5-CHLOROPENTANE, SUBSEQUENTLY REACTING THE RESULTANT REACTION PRODUCT AT A TEMPERATURE OF FROM ABOUT 75* TO ABOUT 100*C. AND FOR A TIME PERIOD OF FROM ABOUT 1 TO ABOUT 10 HOURS WITH FROM 1 TO 3 MOL PROPORTIONS OF AN ALKANOL AMINE CONTAINING FROM 1 TO 2 CARBON ATOM CHAINS OF FROM 2 TO 5 CARBON ATOMS EACH, AND REACTING THE PRODUCT OF THE LAST-MENTIONED STEP WITH AN INORGANIC BASE AT A TEMPERATURE OF FROM ABOUT 50* TO ABOUT 100*C. TO REMOVE HALOGEN THEREFROM.
Claim 2
Dependent Claim
183 words
THE REACTION PRODUCT FORMED BY FIRST REACTING AT A TEMPERATURE OF FROM ABOUT 20* TO ABOUT 80*C. AND FOR A TIME PERIOD OF FROM ABOUT 1 TO ABOUT 4 HOURS ONE MOL PROPORTION OF AN ALIPHATIC AMINE CONSISTING OF CARBON, HYDROGEN AND NITROGEN AND CONTAINING FROM 12 TO 40 CARBON ATOMS AND A STRAIGHT CHAIN OF AT LEAST 3 CARBON ATOMS ATTACHED TO A NITROGEN ATOM AND HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO THE NITROGEN ATOM, WITH FROM 1 TO 3 MOL PROPORTIONS OF AN EPIHALOHYDRIN COMPOUND SELECTED FROM THE GROUP CONSISTING OF EPICHLORHYDRIN, 1,2-EPOXY-4-CHLOROBUTANE, 2,3-EPOXY-4-CHLOROBUTANE, 1,2-EPOXY-5-CHLOROPENTANE AND 2,3-EPOXY-5-CHLOROPENTANE, SUBSEQUENTLY REACTING THE RESULTANT REACTION PRODUCT AT A TEMPERATURE OF FROM ABOUT 75* TO ABOUT 100*C. AND FOR A TIME PERIOD OF FROM ABOUT 1 TO ABOUT 10 HOURS WITH FROM 1 TO 3 MOL PROPORTIONS OF AN ALKANOL AMINE CONTAINING FROM 1 TO 2 CARBON ATOM CHAINS OF FROM 2 TO 5 CARBON ATOMS EACH, AND REACTING THE PRODUCT OF THE LAST-MENTIONED STEP WITH AN INORGANIC BASE AT A TEMPERATURE OF FROM ABOUT 50* TO ABOUT 100*C. TO REMOVE HALOGEN THEREFROM.
References Cited (Backward Citations)
US1845403A
Cited
US2694629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |