US3342820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of c-alkyl-triethylenediamine
Assignee: Texaco Inc
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Filing: 1964-08-31
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Granted: 1967-09-19
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter H Brader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:52
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J27/18; B01J27/1802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD FOR THE SYNTHESIS OF A C-ALKYL SUBSTITUTED TRIETHYLENEDIAMINE WHICH COMPRISES THE STEPS OF CONTACTING A CATALYST WITH A FEED STOCK IN VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 350* TO ABOUT 450*C. IN THE PRESENCE OF AMMONIA IN THE MOLAR RATIO OF 1 TO 15 MOLS OF AMMONIA PER MOL OF FEED STOCK, SAID CATALYST BEING A PHOSPHATE SALT CONTAINING IN THE CATIONIC PORTION THEREOF AN ALKALI METAL AND ONE TO FOUR MOLS OF A TRIVALENT ELEMENT PER MOL OF ALKALI METAL, SAID FEED STOCK HAVING THE FORMULA:
Claim 2
Independent Claim
93 words
A METHOD FOR THE SYNTHESIS OF A C-ALKYL SUBSTITUTED TRIETHYLENEDIAMINE WHICH COMPRISES THE STEPS OF CONTACTING A CATALYST WITH A FEED STOCK IN VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 350* TO ABOUT 450*C. IN THE PRESENCE OF AMMONIA IN THE MOLAR RATIO OF 1 TO 15 MOLS OF AMMONIA PER MOL OF FEED STOCK, SAID CATALYST BEING A PHOSPHATE SALT CONTAINING IN THE CATIONIC PORTION THEREOF AN ALKALI METAL AND ONE TO FOUR MOLS OF A TRIVALENT ELEMENT PER MOL OF ALKALI METAL, SAID FEED STOCK HAVING THE FORMULA:
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |