US2897155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a detergent composition containing anhydrous form 11 tripolyphosphate
Assignee: Lever Brothers Co
•
Filing: 1955-07-27
•
Granted: 1959-07-28
•
Expires: 1975-07-27
Abstract
No abstract record available.
Inventors
- 👤 John P Mcnaught
- 👤 Jack R Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:27
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE PROCESS OF PREPARING A FREE FLOWING HEAT DRIED DETERGENT COMPOSITION CONTAINING FROM ABOUT 25% TO ABOUT 40% OF PRIMARILY ANHYDROUS FORM II SODIUM TRIPOLYPHOSPHATE AND A MINIMUM OF DECOMPOSITION PRODUCTS THEREOF COMPRISING ADDING LAST ANY ANHYDROUS FORM II SODIUM TRIPOLYPHOSPHATE TO AN AQUEOUS SLURRY OF THE DETERGENT COMPOSITION CONTAINING AN ORGANIC DETERGENT OF THE GROUP CONSISTING OF WATER-SOLUBLE ALKALI METAL SOAPS AND WATER-SOLUBLE NON-SOAP SYNTHETIC DETERGENTS PLUS WATER-SOLUBLE INORGANIC BUILDER SALTS TO FORM A SLURRY HAVING ONLY SUFFICIENT MOISTURE TO MAINTAIN A PUMPABLE AND SPRAYABLE SLURRY, THE SLURRY HAVING A TEMPERATURE IN THE RANGE FROM ABOUT 160* F. TO ABOUT 200* F.; AGITATING THE SLURRY WITHIN SAID TEMPERATURE RANGE FOR A PERIOD NOT MORE THAN ABOUT ONE HOUR; AND THEN HEAT DRYING THE SLURRY.
Claim 2
Dependent Claim
125 words
THE PROCESS OF PREPARING A FREE FLOWING HEAT DRIED DETERGENT COMPOSITION CONTAINING FROM ABOUT 25% TO ABOUT 40% OF PRIMARILY ANHYDROUS FORM II SODIUM TRIPOLYPHOSPHATE AND A MINIMUM OF DECOMPOSITION PRODUCTS THEREOF COMPRISING ADDING LAST ANY ANHYDROUS FORM II SODIUM TRIPOLYPHOSPHATE TO AN AQUEOUS SLURRY OF THE DETERGENT COMPOSITION CONTAINING AN ORGANIC DETERGENT OF THE GROUP CONSISTING OF WATER-SOLUBLE ALKALI METAL SOAPS AND WATER-SOLUBLE NON-SOAP SYNTHETIC DETERGENTS PLUS WATER-SOLUBLE INORGANIC BUILDER SALTS TO FORM A SLURRY HAVING ONLY SUFFICIENT MOISTURE TO MAINTAIN A PUMPABLE AND SPRAYABLE SLURRY, THE SLURRY HAVING A TEMPERATURE IN THE RANGE FROM ABOUT 160* F. TO ABOUT 200* F.; AGITATING THE SLURRY WITHIN SAID TEMPERATURE RANGE FOR A PERIOD NOT MORE THAN ABOUT ONE HOUR; AND THEN HEAT DRYING THE SLURRY.
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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |