Patent US3056652A successfully refreshed from Google Patents.
US3056652A
Expired / Lapsed
US
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Modification of the hydration characteristics of form ii sodium tripolyphosphate prior to detegent processing
Assignee: Lever Brothers Co
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Filing: 1957-11-26
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Granted: 1962-10-02
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Expires: 1977-11-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick V Ryer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:53
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/062; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/40; C01B25/41; C01B25/418
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
THE PROCESS OF CONVERTING FAST HYDRATING FORM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE INTO SLOW HYDRATING FORM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE COMPRISING HEATING THE SOLID FAST HYDRATING FROM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE ALONE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 380*C. FOR A TIME OF FROM AT LEAST ABOUT 6 HOURS TO AT LEAST ABOUT 1 HOUR RESPECTIVELY TO REMOVE THE ADSORBED WATER; SAID FAST HYDRATING FROM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE BEING CHARACTERIZED BY THE FACT THAT A STIRRED AQUEOUS SLURRY THEREOF CONSISTING OF 100 PARTS OF WATER, 25 PARTS OF ANHYDROUS SODIUM SULFATE, AND 75 PARTS OF SAID FAST HYDRATING PHOSPHATE AT AN INITIAL TEMPERATURE OF 170*F. WILL THICKEN AND THE TEMPERATURE WILL RISE DURING STANDING FOR 15 MINUTES AND SAID SLOW HYDRATING FORM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE BEING CHARACTERIZED BY THE FACT THAT A STIRRED AQUEOUS SLURRY THEREOF CONSISTING OF 100 PARTS WATER, 25 PARTS OF ANHYDROUS SODIUM SULFATE, AND 75 PARTS OF SAID SLOW HYDRATING PHOSPHATE AT AN INITIAL TEMPERATURE OF 170*F. WILL REMAIN THIN AND THE TEMPERATURE WILL FALL DURING STANDING FOR 15 MINUTES.
Claim 2
Dependent Claim
178 words
THE PROCESS OF CONVERTING FAST HYDRATING FORM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE INTO SLOW HYDRATING FORM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE COMPRISING HEATING THE SOLID FAST HYDRATING FROM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE ALONE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 380*C. FOR A TIME OF FROM AT LEAST ABOUT 6 HOURS TO AT LEAST ABOUT 1 HOUR RESPECTIVELY TO REMOVE THE ADSORBED WATER; SAID FAST HYDRATING FROM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE BEING CHARACTERIZED BY THE FACT THAT A STIRRED AQUEOUS SLURRY THEREOF CONSISTING OF 100 PARTS OF WATER, 25 PARTS OF ANHYDROUS SODIUM SULFATE, AND 75 PARTS OF SAID FAST HYDRATING PHOSPHATE AT AN INITIAL TEMPERATURE OF 170*F. WILL THICKEN AND THE TEMPERATURE WILL RISE DURING STANDING FOR 15 MINUTES AND SAID SLOW HYDRATING FORM 11 ANHYDROUS SODIUM TRIPOLYPHOSPHATE BEING CHARACTERIZED BY THE FACT THAT A STIRRED AQUEOUS SLURRY THEREOF CONSISTING OF 100 PARTS WATER, 25 PARTS OF ANHYDROUS SODIUM SULFATE, AND 75 PARTS OF SAID SLOW HYDRATING PHOSPHATE AT AN INITIAL TEMPERATURE OF 170*F. WILL REMAIN THIN AND THE TEMPERATURE WILL FALL DURING STANDING FOR 15 MINUTES.
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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |