Patent US2729928A successfully refreshed from Google Patents.
Patent US3389145A successfully refreshed from Google Patents.
US3389145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fatty oxazoline surfactants and a process for their preparation
Assignee: Individual
•
Filing: 1965-10-24
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Granted: 1968-06-18
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Katz Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:33
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; C11; C11D; C11D1/00; C11D1/88; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
7 words
A FATTY OXAZOLINE SURFACTANT HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A FATTY OXAZOLINE SURFACTANT HAVING THE FORMULA
Claim 3
Dependent Claim
4 words
A SURFACTANT CONSISTING OF
Claim 4
Dependent Claim
4 words
A SURFACTANT CONSISTING OF
Claim 5
Dependent Claim
172 words
THE PROCESS OF MAKING A SURFACTANT IN WHICH A FATTY ACID HAVING 7 TO 21 CARBON ATOMS IS REACTED WITH AN AMINO COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-AMINO-2-METHYL-1-PROPANOL, 2-AMINO-2-METHYL-1.3-PROPANEDIOL, 2-AMINO-2-ETHYL-1.3-PROPANEDIOL, TRIS(HYDROXYMETHYL AMINOMETHANE AND 2-AMINO-1-BUTANOL AND IN WHICH 1 MOL OF SAID AMINO COMPOUND IS COMBINED WITH 1 TO 2 MOLS OF THE FATTY ACID, FIRST BY HEATING UNDER A LOW VACUUM OF 15 TO 20 INCHES FOR ABOUT 1 1/2 TO 3 HOURS AT 350*F. AND THEN CONTINUING AT 450*F. UNDER A HIGH VACUUM OF 25 TO 29 INCHES FOR 5 TO 8 HOURS, AND THEN ADDING DROP BY DROP TO THE REACTION MIXTURE 1 MOL OF AN ACRYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, ETHYL ACRYLATE AND ACRYLONITRIL AT A TEMPERATURE OF 100 TO 150*F., SAID DROPWISE ADDITION CONTINUING FOR ABOUT 1 HOUR, THEN FOLLOWING BY HEATING FOR ABOUT 1 1/2 TO 3 HOURS AT 180* TO 230*F. AND INCREASING THE VACUUM TO 15 TO 18 INCHES AND THEN TREATING THE REACTION MIXTURE WITH CAUSTIC ALKALI.
Claim 6
Dependent Claim
172 words
THE PROCESS OF MAKING A SURFACTANT IN WHICH A FATTY ACID HAVING 7 TO 21 CARBON ATOMS IS REACTED WITH AN AMINO COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2-AMINO-2-METHYL-1-PROPANOL, 2-AMINO-2-METHYL-1.3-PROPANEDIOL, 2-AMINO-2-ETHYL-1.3-PROPANEDIOL, TRIS(HYDROXYMETHYL AMINOMETHANE AND 2-AMINO-1-BUTANOL AND IN WHICH 1 MOL OF SAID AMINO COMPOUND IS COMBINED WITH 1 TO 2 MOLS OF THE FATTY ACID, FIRST BY HEATING UNDER A LOW VACUUM OF 15 TO 20 INCHES FOR ABOUT 1 1/2 TO 3 HOURS AT 350*F. AND THEN CONTINUING AT 450*F. UNDER A HIGH VACUUM OF 25 TO 29 INCHES FOR 5 TO 8 HOURS, AND THEN ADDING DROP BY DROP TO THE REACTION MIXTURE 1 MOL OF AN ACRYLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, ETHYL ACRYLATE AND ACRYLONITRIL AT A TEMPERATURE OF 100 TO 150*F., SAID DROPWISE ADDITION CONTINUING FOR ABOUT 1 HOUR, THEN FOLLOWING BY HEATING FOR ABOUT 1 1/2 TO 3 HOURS AT 180* TO 230*F. AND INCREASING THE VACUUM TO 15 TO 18 INCHES AND THEN TREATING THE REACTION MIXTURE WITH CAUSTIC ALKALI.
References Cited (Backward Citations)
US2967173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |