US3351655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing odorless alkylaryl sulfonates and the compositions produced thereby
Assignee: Chevron USA Inc
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Filing: 1964-08-27
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Granted: 1967-11-07
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Expires: 1984-08-27
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang K Seifert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:57
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/28; C07C309/29; C07C309/30; C07C309/31
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
IN A PROCESS FOR PRODUCING ALKYLARYL SULFONATE BY SULFONATING AN ALKYLARYL HYDROCARBON HAVING 9 TO 18 CARBON ATOMS IN THE ALKYL GROUPS WITH CONCENTRATED SULFURIC ACID TO PRODUCE A MIXTURE COMPRISING ALKYLARYL SULFONIC ACIDS, AND NEUTRALIZING SAID SULFONIC ACID MIXTURE, THE IMPROVEMENT OF PRODUCTING A SUBSTANTIALLY ODORLESS NEUTRALIZED ALKYLARYL SULFONATE DETERGENT PRODUCT WHICH COMPRISES INCORPORATING INTO THE SULFONIC ACID PHASE FREE OF SULFURIC ACID A HYDROXYLAMINESALT IN AN AMOUNT OF ABOUT .004 TO 2% BY WEIGHT BASED ON THE DETERGENT ACTIVE COMPONENT THEREIN.
Claim 2
Dependent Claim
83 words
IN A PROCESS FOR PRODUCING ALKYLARYL SULFONATE BY SULFONATING AN ALKYLARYL HYDROCARBON HAVING 9 TO 18 CARBON ATOMS IN THE ALKYL GROUPS WITH CONCENTRATED SULFURIC ACID TO PRODUCE A MIXTURE COMPRISING ALKYLARYL SULFONIC ACIDS, AND NEUTRALIZING SAID SULFONIC ACID MIXTURE, THE IMPROVEMENT OF PRODUCTING A SUBSTANTIALLY ODORLESS NEUTRALIZED ALKYLARYL SULFONATE DETERGENT PRODUCT WHICH COMPRISES INCORPORATING INTO THE SULFONIC ACID PHASE FREE OF SULFURIC ACID A HYDROXYLAMINESALT IN AN AMOUNT OF ABOUT .004 TO 2% BY WEIGHT BASED ON THE DETERGENT ACTIVE COMPONENT THEREIN.
Claim 3
Dependent Claim
36 words
AN ODORLESS NEUTRALIZED ALKYLARYL SULFONATE DETERGENT COMPOSITON HAVING 9 TO 18 CARBON ATOMS IN THE ALKYL GROUPS HAVING INCORPORATED THEREIN HYDROXYLAMINE IN AN AMOUNT OF ABOUT 0.004 TO 2% BY WEIGHT BASED ON THE SULFONATE DETERGENT.
Claim 4
Dependent Claim
36 words
AN ODORLESS NEUTRALIZED ALKYLARYL SULFONATE DETERGENT COMPOSITON HAVING 9 TO 18 CARBON ATOMS IN THE ALKYL GROUPS HAVING INCORPORATED THEREIN HYDROXYLAMINE IN AN AMOUNT OF ABOUT 0.004 TO 2% BY WEIGHT BASED ON THE SULFONATE DETERGENT.
References Cited (Backward Citations)
USRE22548E
Cited
US2469378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |