US2883277A
Expired / Lapsed
US
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Synergistic corrosion inhibiting composition for gasoline
Assignee: GAF Chemicals Corp
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Filing: 1956-10-12
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Granted: 1959-04-21
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Expires: 1976-10-12
Abstract
No abstract record available.
Inventors
- 👤 John P G Beiswanger
- 👤 John W Burnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:14
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPOSITION ADAPTED FOR ADDITION TO LOW-BOILING PETROLEUM FRACTIONS TO INHIBIT CORROSION OF IRON IN CONTACT THEREWITH, WHICH CONSISTS, ESSENTIALLY, OF 75 TO 85% BY WEIGHT OF (1) AN ALKOXYLATED FATTY ACID AMIDE OF A POLYALKYLENE POLYAMINE OBTAINED BY (A) REACTING ONE MOLE OF DIETHYLENE TRIAMINE WITH TWO MOLECULAR EQUIVALENTS OF AN UNSATURATED HIGHER FATTY ACID COMPOUND; (B) REACTING THE PRODUCT OF STEP (A) WITH MORE THAN SUFFICIENT ETHYLENE OXIDE TO CONDENSE WITH ALL THE REMAINING REPLACEABLE N-HYDROGEN ATOMS THEREIN THE THUS OBTAINED ALKOXYLATED FATTY ACID AMIDE OF DIETHYLENE TRIAMINE CONFORMULA
Claim 2
Dependent Claim
91 words
A COMPOSITION ADAPTED FOR ADDITION TO LOW-BOILING PETROLEUM FRACTIONS TO INHIBIT CORROSION OF IRON IN CONTACT THEREWITH, WHICH CONSISTS, ESSENTIALLY, OF 75 TO 85% BY WEIGHT OF (1) AN ALKOXYLATED FATTY ACID AMIDE OF A POLYALKYLENE POLYAMINE OBTAINED BY (A) REACTING ONE MOLE OF DIETHYLENE TRIAMINE WITH TWO MOLECULAR EQUIVALENTS OF AN UNSATURATED HIGHER FATTY ACID COMPOUND; (B) REACTING THE PRODUCT OF STEP (A) WITH MORE THAN SUFFICIENT ETHYLENE OXIDE TO CONDENSE WITH ALL THE REMAINING REPLACEABLE N-HYDROGEN ATOMS THEREIN THE THUS OBTAINED ALKOXYLATED FATTY ACID AMIDE OF DIETHYLENE TRIAMINE CONFORMULA
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |