US3658720A
Expired / Lapsed
US
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Corrosion inhibiting composition containing acetylenic alcohols a quinoline quaternary compound and an organic fluoride
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1969-11-12
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Granted: 1972-04-25
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Expires: 1989-11-12
Abstract
Abstract CORROSION OF FERROUS METALS BY CORROSIVE ACIDS AT ELEVATED TEMPERATURES IS INHIBITED BY ADDING TO THE CORROSIVE ACID A COMPOSITION COMPRISING EFFECTIVE AMOUNTS OF AT LEAST 2 ACETYLENIC ALCOHOLS, A QUINOLINE QUATERNARY COMPOUND AND AN ORGANIC FLUORIDE HAVING THE STRUCTURE: 1-Y,2-(CNF(2N+1)-)-2-IMIDAZOLINIUM (X.3H2O)(-) WHERE N IS AN INTEGER FROM 3 TO 10; X IS SELECTED FROM THE GROUP CONSISTING OF BROMINE AND IODINE; AND Y IS A GLYCOL HAVING 3 TO 10 CARBON ATOMS. THE COMPOSITION MAY CONTAIN A TERPENE ALCOHOL, AN ALIPHATIC ALCOHOL AND A DISPERSING AGENT SUCH ASS AN ETHOXYLATED OLEATE AND THE LIKE.
Inventors
- 👤 Lee A Mcdougall
- 👤 James R Looney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/04; B; B01; B01J; B01J19/00; B01J19/02; B01J2219/00; B01J2219/02; B01J2219/025; B01J2219/0277; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 0
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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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |