Patent US2748089A successfully refreshed from Google Patents.
US2748089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for inhibiting foam
Assignee: Baker Petrolite LLC
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Filing: 1951-12-18
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Granted: 1956-05-29
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Expires: 1971-12-18
Abstract
No abstract record available.
Inventors
- 👤 Louis T Monson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:38
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A PROCESS FOR INHIBITING FOAM, CHARACTERIZED BY SUBJECTING A NON-DETERSIVE FOAMING COMPOSITION TO THE ACTION OF NOT MORE THAN 1 PER CENT OF AN OXYALKYLATED AND ACYLATED MATERIAL SELECTED FROM THE GROUP CONSISTING OF TRIETHANOLAMINE AND ITS CONDENSATION POLYMERS, SAID OXYALKYLATED AND ACYLATED MATERIAL BEING SUCH THAT THERE IS INTRODUCED INTO THE TRIETHANOLAMINE STRUCTURE AS A SUBSTITUENT FOR A HYDROXYL HYDROGEN ATOM AT LEAST ONE OCCURRENCE OF THE RADICAL RCO, WHICH IS THE ACYL RADICAL OF A MONOCARBOXY DETERGENT-FORMING ACID HAVING 8 TO 32 CARBON ATOMS, AND A PLURALITY- OF OXYALKYLENE GROUPS SELECTED FROM THE CLASS CONSISTING OF OXYPROPYLENE AND MIXTURES OF OXYPROPYLENE AND OXYETHYLENE GROUPS, WITH THE PROVISO THAT THE MOLECULAR WEIGHT OF SAID MATERIAL EXCLUSIVE OF OXYALKYLATION-INTRODUCED ELEMENTS BE AT LEAST 273 AND NOT MORE THAN 4,000 AND WITH THE FURTHER PROVISO THAT AT LEAST ONE-HALF BY WEIGHT OF THE OXYALKYLATED AND ACYLATED MATERIAL CONSIST OF A MULTIPLE OF THE OXYPROPYLENE GROUP, C3H6O.
Claim 2
Dependent Claim
155 words
A PROCESS FOR INHIBITING FOAM, CHARACTERIZED BY SUBJECTING A NON-DETERSIVE FOAMING COMPOSITION TO THE ACTION OF NOT MORE THAN 1 PER CENT OF AN OXYALKYLATED AND ACYLATED MATERIAL SELECTED FROM THE GROUP CONSISTING OF TRIETHANOLAMINE AND ITS CONDENSATION POLYMERS, SAID OXYALKYLATED AND ACYLATED MATERIAL BEING SUCH THAT THERE IS INTRODUCED INTO THE TRIETHANOLAMINE STRUCTURE AS A SUBSTITUENT FOR A HYDROXYL HYDROGEN ATOM AT LEAST ONE OCCURRENCE OF THE RADICAL RCO, WHICH IS THE ACYL RADICAL OF A MONOCARBOXY DETERGENT-FORMING ACID HAVING 8 TO 32 CARBON ATOMS, AND A PLURALITY- OF OXYALKYLENE GROUPS SELECTED FROM THE CLASS CONSISTING OF OXYPROPYLENE AND MIXTURES OF OXYPROPYLENE AND OXYETHYLENE GROUPS, WITH THE PROVISO THAT THE MOLECULAR WEIGHT OF SAID MATERIAL EXCLUSIVE OF OXYALKYLATION-INTRODUCED ELEMENTS BE AT LEAST 273 AND NOT MORE THAN 4,000 AND WITH THE FURTHER PROVISO THAT AT LEAST ONE-HALF BY WEIGHT OF THE OXYALKYLATED AND ACYLATED MATERIAL CONSIST OF A MULTIPLE OF THE OXYPROPYLENE GROUP, C3H6O.
References Cited (Backward Citations)
US2324490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |