US2810752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of beta amino propionate surfactants
Assignee: General Mills Inc
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Filing: 1953-05-29
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Granted: 1957-10-22
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Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Royce G Freese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:38
CPC Classifications
C; C07; C07C; C07C229/00; C07C229/02; C07C229/04; C07C229/06; C07C229/08; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
PROCESS OF MAKING SURFACTANTS HAVING THE FORMULA RNHCH2COOM IN WHICH R IS AN ALIPHATIC HYDROCARBON GROUP CONTAINING FROM 8-22 CARBON ATOMS AND M IS A SALT-FORMING GROUP WHICH COMPRISES REACTING AN UNDISTILLED FATTY AMINE RNH2 WITH A LOWER ALIPHATIC ESTER OF ACRYLIC ACID TO PRODUCE THE CORRESPONDING B AMINO PROPIONATE ESTER, HYDROLYZING SAID ESTER WITH AN AQUEOUS SOLUTION OF AN ALKALINE MATERIAL, ADJUSTING A PH OF THE SOLUTION TO WITHIN THE RANGE OF 6.5-11.0 EXCEPT FOR THE RANGE OF 8-10. TO PRODUCE A LOW VISCOSITY AND SEPARATING SUSPENDED MATERIAL FROM THE AQUEOUS SOLUTION.
Claim 2
Dependent Claim
93 words
PROCESS OF MAKING SURFACTANTS HAVING THE FORMULA RNHCH2COOM IN WHICH R IS AN ALIPHATIC HYDROCARBON GROUP CONTAINING FROM 8-22 CARBON ATOMS AND M IS A SALT-FORMING GROUP WHICH COMPRISES REACTING AN UNDISTILLED FATTY AMINE RNH2 WITH A LOWER ALIPHATIC ESTER OF ACRYLIC ACID TO PRODUCE THE CORRESPONDING B AMINO PROPIONATE ESTER, HYDROLYZING SAID ESTER WITH AN AQUEOUS SOLUTION OF AN ALKALINE MATERIAL, ADJUSTING A PH OF THE SOLUTION TO WITHIN THE RANGE OF 6.5-11.0 EXCEPT FOR THE RANGE OF 8-10. TO PRODUCE A LOW VISCOSITY AND SEPARATING SUSPENDED MATERIAL FROM THE AQUEOUS SOLUTION.
References Cited (Backward Citations)
US2468012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |