US2602805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of purifying amino compounds and co2 addition product produced thereby
Assignee: Colgate Palmolive Co
•
Filing: 1947-09-08
•
Granted: 1952-07-08
•
Expires: 1967-09-08
Abstract
No abstract record available.
Inventors
- 👤 Constance L Percy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:36
CPC Classifications
C; C07; C07C; C07C231/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A PROCESS FOR THE SEPARATION OF AMINO MONOAMIDE MATERIAL FROM THE REACTION MIXTURE OBTAINED BY REACTION BETWEEN AN ALKYLENE POLYAMINE AND A FATTY ACID HAVING FROM 12 TO 18 CARBON ATOMS IN WHICH THE ALKYLENE POLYAMINE IS PRESENT IN MOLECULAR EXCESS RELATIVE TO THE FATTY ACID IN ORDER TO FAVOR THE FORMATION PREDOMINANTLY OF THE DESIRED AMINO MONOAMIDE MATERIAL, AND IN WHICH REACTION MIXTURE THERE IS PRESENT AT LEAST SOME OF THE CORRESPONDING POLYAMIDE MATERIAL, THE STEPS COMPRISING DISSOLVING THE REACTION MIXTURE IN AN ORGANIC SOLVENT, CONTACTING THE RESULTING SOLUTION WITH CO2 THEREBY FORMING AT LEAST ONE CO2 ADDITION COMPOUND OF THE AMINO MONOAMIDE MATERIAL, AND SEPARATING THE CO2 ADDITION COMPOUND FROM THE SOLUTION.
Claim 2
Dependent Claim
115 words
IN A PROCESS FOR THE SEPARATION OF AMINO MONOAMIDE MATERIAL FROM THE REACTION MIXTURE OBTAINED BY REACTION BETWEEN AN ALKYLENE POLYAMINE AND A FATTY ACID HAVING FROM 12 TO 18 CARBON ATOMS IN WHICH THE ALKYLENE POLYAMINE IS PRESENT IN MOLECULAR EXCESS RELATIVE TO THE FATTY ACID IN ORDER TO FAVOR THE FORMATION PREDOMINANTLY OF THE DESIRED AMINO MONOAMIDE MATERIAL, AND IN WHICH REACTION MIXTURE THERE IS PRESENT AT LEAST SOME OF THE CORRESPONDING POLYAMIDE MATERIAL, THE STEPS COMPRISING DISSOLVING THE REACTION MIXTURE IN AN ORGANIC SOLVENT, CONTACTING THE RESULTING SOLUTION WITH CO2 THEREBY FORMING AT LEAST ONE CO2 ADDITION COMPOUND OF THE AMINO MONOAMIDE MATERIAL, AND SEPARATING THE CO2 ADDITION COMPOUND FROM THE SOLUTION.
References Cited (Backward Citations)
US2371097A
Cited
US1947951A
Cited
US2098551A
Cited
US2265814A
Cited
US2291396A
Cited
US2387201A
Cited
US2419404A
Cited
US2518148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |