Patent US3657347A successfully refreshed from Google Patents.
US3657347A
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Production of long chain amines by reacting monoethanolamine monoisopropanolamine and/or ethylenediamine with long chain straight chain secondary chlorides
Assignee: Witco Corp
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Filing: 1970-06-17
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Granted: 1972-04-18
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Expires: 1990-06-17
Abstract
Abstract PRODUCTION OF LONG CHAIN AMINES, IN A FORM SUBSTANTIALLY FREE FROM OLEFINS, BY REACTING (A) MONOETHANOLAMINE, N-METHYLETHANOLAMINE, MONOISOPROPANOLAMINE, AND/OR ETHYLENEDIAMINE WITH (B) SECONDARY MONOCHLORINATED STRAIGHT CHAIN PARAFFIN HYDROCARBONS CONTAINING FROM 6 TO 26 CARBON ATOMS, PARTICULARLY THOSE PREPARED BY PARTIALLY CHLORINATING A PETROLEUM DERIVED HYDROCARBON FRACTION CONSISTING ESSENTIALLY OF C8 TO C18 STRAIGHT CHAIN PARAFFINS TO THE EXTENT WHEREBY FROM ABOUT 10 TO ABOUT 25 MOL PRECENT OF THE PARAFFINS ARE MONOCHLORINATED, SAID FRACTION BEING LARGELY FREE FROM BRANCHED CHAIN HYDROCARBONS AND FROM CHLORINATED BRANCHED CHAIN HYDROCARBONS.
Inventors
- 👤 Thomas C Muller
- 👤 Lawrence B Nelson
- 👤 Bernard R Bluestein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:33
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/33; C07C211/34; C07C211/38; C07C209/00; C07C209/04; C07C209/06; C07C209/08; C07C213/00; C07C213/02; C07C2602/00; C07C2602/02; C07C2602/14; C07C2602/18; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |