Patent US2864866A successfully refreshed from Google Patents.
US2864866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing surface-active materials
Assignee: Phillips Petroleum Co
•
Filing: 1956-12-28
•
Granted: 1958-12-16
•
Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Rector P Louthan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/755
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
A DETERGENT COMPOSITION, EFFECTIVE IN CLEANING NYLON, WOOL, AND MIXTURES THEREOF, WHEN USED IN AQUEOUS SOLUTION, REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
20 words
A DETERGENT COMPOSITION, EFFECTIVE IN CLEANING NYLON, WOOL, AND MIXTURES THEREOF, WHEN USED IN AQUEOUS SOLUTION, REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
95 words
A PROCESS FOR PREPARING A DETERGENT WHICH COMPRISES REACTING AN ALKYL MERCAPTAN OF FROM 8 TO 20 CARBON ATOMS WITH AN ALKYLENE OXIDE OF FROM 2 TO 5 CARBON ATOMS TO FORM CORRSPONDING GLYCOL THIOETHER; CONTATING THE SOLUTION CONTAINING SAID GLYCOL THIOETHER AT A PH OF NOT MORE THAN 7 WITH AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISITNG OF HYDROGEN PEROXIDE AND PERACIDS UNDER OXIDIZING CONDITIONS TO FORM THE CORRESPONDING SULFOXIDE IN COLORLES FORM AND OF LESS ODOR THAN WHER PRODUCED AT HIGHER PH THAN 7; AND RECOVERING THE SULFOXIDE FROM THE REACTION MIXTURE.
Claim 4
Dependent Claim
95 words
A PROCESS FOR PREPARING A DETERGENT WHICH COMPRISES REACTING AN ALKYL MERCAPTAN OF FROM 8 TO 20 CARBON ATOMS WITH AN ALKYLENE OXIDE OF FROM 2 TO 5 CARBON ATOMS TO FORM CORRSPONDING GLYCOL THIOETHER; CONTATING THE SOLUTION CONTAINING SAID GLYCOL THIOETHER AT A PH OF NOT MORE THAN 7 WITH AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISITNG OF HYDROGEN PEROXIDE AND PERACIDS UNDER OXIDIZING CONDITIONS TO FORM THE CORRESPONDING SULFOXIDE IN COLORLES FORM AND OF LESS ODOR THAN WHER PRODUCED AT HIGHER PH THAN 7; AND RECOVERING THE SULFOXIDE FROM THE REACTION MIXTURE.
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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |