US2703330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of alkyl aromatic hydrocarbons with a hypochlorous acid compound in the production of sulfonate detergents
Assignee: Universal Oil Products Co
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Filing: 1951-04-02
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Granted: 1955-03-01
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Expires: 1971-04-02
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
- 👤 George L Hervert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:36
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/28; C07C7/00; C07C7/148; C07C7/14833; C07C7/1485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN THE PRODUCTION OF SULFONATE DETERGENTS BY SULFONATION OF HYDROCARBON ALKYLATES COMPRISING AN AROMATIC HYDROCARBON HAVING AN ALKYL GROUP OF FROM ABOUT 5 TO ABOUT 18 CARBON ATOMS, THE METHOD OF IMPROVING THE DETERGENT WITH RESPECT TO COLOR AND ODOR AND INCREASING THE REACTIVITY OF THE ALKYLATE IN SULFONATION WHICH COMPRISES MIXING WITH THE LIQUID ALKYLATE, PRIOR TO THE SULFONATION THEREOF, AN AQUEOUS SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYPOCHLOROUS ACID AND A SALT THEREOF, THEREAFTER STRATIFYING THE MIXTURE INTO A LIQUID ALKYLATE PHASE AND AN AQUEOUS LAYER, AND SEPARATING THE ALKYLATE PHASE FROM THE AQUEOUS LAYER.
Claim 2
Dependent Claim
101 words
IN THE PRODUCTION OF SULFONATE DETERGENTS BY SULFONATION OF HYDROCARBON ALKYLATES COMPRISING AN AROMATIC HYDROCARBON HAVING AN ALKYL GROUP OF FROM ABOUT 5 TO ABOUT 18 CARBON ATOMS, THE METHOD OF IMPROVING THE DETERGENT WITH RESPECT TO COLOR AND ODOR AND INCREASING THE REACTIVITY OF THE ALKYLATE IN SULFONATION WHICH COMPRISES MIXING WITH THE LIQUID ALKYLATE, PRIOR TO THE SULFONATION THEREOF, AN AQUEOUS SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYPOCHLOROUS ACID AND A SALT THEREOF, THEREAFTER STRATIFYING THE MIXTURE INTO A LIQUID ALKYLATE PHASE AND AN AQUEOUS LAYER, AND SEPARATING THE ALKYLATE PHASE FROM THE AQUEOUS LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |