Patent US2675328A successfully refreshed from Google Patents.
US2675328A
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Preparation of metal sulfonate compositions
Assignee: Standard Oil Co
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Filing: 1951-05-25
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Granted: 1954-04-13
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Expires: 1971-05-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Wishlinski
- 👤 Frederick W Schuessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:47
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
THE METHOD OF PREPARING A STABLE HOMOGENEOUS POLYVALENT METAL SULFONATE CONTAINING ADJUNCT FOR BITUMINOUS MATERIALS WHICH COMPRISES RECOVERING PREFERENTIALLY WATER-SOLUBLE SULFONIC ACIDS FROM SULFURIC ACID SLUDGE, TRANSFORMING SAID ACIDS INTO PREFERENTIALLY WATER INSOLUBLE SOAPS BY ADDING THERETO A SUFFICIENT AMOUNT OF AN ALKALINE EARTH BASIC COMPOUND TO NEUTRALIZE SAID SULFONIC ACIDS, ADDING FROM ABOUT 25 PERCENT TO ABOUT 75 PERCENT OF A LIQUID AROMATIC HYDROCARBON HAVING A BOILING POINT OF AT LEAST ABOUT 220* F., ADJUSTING THE WATER CONTENT TO NOT MORE THAN 35 PERCENT, ADDING ABOUT 2 PERCENT TO ABOUT 15 PERCENT OF AN ALKANOL CONTAINING FROM 2 TO ABOUT 16 CARBON ATOMS AND ADDING FROM ABOUT 0.05 PERCENT TO ABOUT 18 PERCENT OF A PREFERENTIALLY OIL-SOLUBLE SULFONIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF MAHOGANY ACID AND METAL SOAPS OF MAHOGANY ACIDS.
Claim 2
Independent Claim
134 words
THE METHOD OF PREPARING A STABLE HOMOGENEOUS POLYVALENT METAL SULFONATE CONTAINING ADJUNCT FOR BITUMINOUS MATERIALS WHICH COMPRISES RECOVERING PREFERENTIALLY WATER-SOLUBLE SULFONIC ACIDS FROM SULFURIC ACID SLUDGE, TRANSFORMING SAID ACIDS INTO PREFERENTIALLY WATER INSOLUBLE SOAPS BY ADDING THERETO A SUFFICIENT AMOUNT OF AN ALKALINE EARTH BASIC COMPOUND TO NEUTRALIZE SAID SULFONIC ACIDS, ADDING FROM ABOUT 25 PERCENT TO ABOUT 75 PERCENT OF A LIQUID AROMATIC HYDROCARBON HAVING A BOILING POINT OF AT LEAST ABOUT 220* F., ADJUSTING THE WATER CONTENT TO NOT MORE THAN 35 PERCENT, ADDING ABOUT 2 PERCENT TO ABOUT 15 PERCENT OF AN ALKANOL CONTAINING FROM 2 TO ABOUT 16 CARBON ATOMS AND ADDING FROM ABOUT 0.05 PERCENT TO ABOUT 18 PERCENT OF A PREFERENTIALLY OIL-SOLUBLE SULFONIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF MAHOGANY ACID AND METAL SOAPS OF MAHOGANY ACIDS.
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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |