Patent US2978463A successfully refreshed from Google Patents.
US2978463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex epoxy fatty esters
Assignee: JBS USA LLC
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Filing: 1956-08-27
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Granted: 1961-04-04
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Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Frank E Kuester
- 👤 Thomas W Findley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:41
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C07D303/42; C08; C08L; C08L27/00; C08L27/02; C08L27/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
85 words
A PROCESS FOR THE PREPARATION OF OXIRANE-CONTAINING FATTY ACID ESTERS COMPRISING: ADMIXING TOGETHER TWO DIFFERENT ESTERS, SUBSTANTIALLY ALL CARBOXYL GROUPS OF SAID ESTERS BEING ENTIRELY ESTERFIED, ONE OF SAID ESTERS BEING AN ESTER OF AN OXIRANE-CONTAINING FATTY ACID, ADDING THERETO A SMALL AMOUNT OF AN ALKALINE INTERESTERFICATION CATALYST, AND ADJUSTING THE TEMPERATURE OF THE MIXTURE SO FORMED TO A TEMPERATURE OF ABOUT 50*C. TO 130* C. WHEREBY INTERESTERIFICATION IS EFFECTED TO PRODUCE AN OXIRANE-CONTAINING FATTY ESTER SUBSTANTIALLY ALL CARBOXYL GROUPS OF WHICH ARE ENTIRELY ESTERIFIED.
Claim 2
Dependent Claim
85 words
A PROCESS FOR THE PREPARATION OF OXIRANE-CONTAINING FATTY ACID ESTERS COMPRISING: ADMIXING TOGETHER TWO DIFFERENT ESTERS, SUBSTANTIALLY ALL CARBOXYL GROUPS OF SAID ESTERS BEING ENTIRELY ESTERFIED, ONE OF SAID ESTERS BEING AN ESTER OF AN OXIRANE-CONTAINING FATTY ACID, ADDING THERETO A SMALL AMOUNT OF AN ALKALINE INTERESTERFICATION CATALYST, AND ADJUSTING THE TEMPERATURE OF THE MIXTURE SO FORMED TO A TEMPERATURE OF ABOUT 50*C. TO 130* C. WHEREBY INTERESTERIFICATION IS EFFECTED TO PRODUCE AN OXIRANE-CONTAINING FATTY ESTER SUBSTANTIALLY ALL CARBOXYL GROUPS OF WHICH ARE ENTIRELY ESTERIFIED.
Claim 3
Dependent Claim
59 words
AN OXIRANE-CONTAINING FATTY ACID ESTER OF A LOWER ALIPHATIC POLYOL HAVING 2-6 HYDROXY GROUPS IN WHICH AN HYDROXY GROUP IS ESTERIFIED WITH AN ACID SELECTED FROM THE GROUP CONSISTING OF POLYBASIC ALIPHATIC ACIDS HAVING LESS THAN 11 CARBON ATOMS, MONOBASIC BENZENOID ACIDS, ALKYL BENZENOID ACIDS, HYDROXY ACIDS, PHOSPHORIC ACID AND MIXTURES THEREOF, SUBSTANTIALLY ALL ACID GROUPS BEING COMPLETELY ESTERFIED.
Claim 4
Dependent Claim
59 words
AN OXIRANE-CONTAINING FATTY ACID ESTER OF A LOWER ALIPHATIC POLYOL HAVING 2-6 HYDROXY GROUPS IN WHICH AN HYDROXY GROUP IS ESTERIFIED WITH AN ACID SELECTED FROM THE GROUP CONSISTING OF POLYBASIC ALIPHATIC ACIDS HAVING LESS THAN 11 CARBON ATOMS, MONOBASIC BENZENOID ACIDS, ALKYL BENZENOID ACIDS, HYDROXY ACIDS, PHOSPHORIC ACID AND MIXTURES THEREOF, SUBSTANTIALLY ALL ACID GROUPS BEING COMPLETELY ESTERFIED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |