US2692239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing a magnesia hydrosol and magnesia hydrogel
Assignee: Standard Oil Development Co
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Filing: 1949-06-18
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Granted: 1954-10-19
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Expires: 1969-06-18
Abstract
No abstract record available.
Inventors
- 👤 Edward A Hunter
- 👤 Jr Charles N Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:41
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS FOR PRODUCING MAGNESIA HYDROSOL WHICH COMPRISES HYDROLYZING AN ANHYDROUS METHANOL SOLUTION OF MAGNESIUM METHYLATE WITH AN EXCESS OF WATER IN A MIXING ZONE VOILENT AGITATION BY ADDING SAID METHANOL SOLUTION OF MAGNESIUM METHYLATE SLOWLY AS A THIN STREAM INTO AN EXCESS OF WATER IN SAID MIXING ZONE WHILE VIOLENTLY AGITATING THE CONTENTS OF SAID MIXING ZONE AND CONTINUING THE SLOW ADDITION OF THE ANHYDROUS METHANOL SOLUTION OF MAGNESIUM METHYLATE UNTIL A DIULTE STABLE MAGNESIA HYDROSOL SUBSTANTIALLY FREE OF DISCRETE PARTICLES OF PRECIPITATED MAGNESIA AND CONTAINING ABOUT 3% BY WEIGHT OF MAGNESIA IS FORMED AND RECOVERING THE STABLE DILUTE MAGNESIA HYDROSOL.
Claim 2
Dependent Claim
102 words
A PROCESS FOR PRODUCING MAGNESIA HYDROSOL WHICH COMPRISES HYDROLYZING AN ANHYDROUS METHANOL SOLUTION OF MAGNESIUM METHYLATE WITH AN EXCESS OF WATER IN A MIXING ZONE VOILENT AGITATION BY ADDING SAID METHANOL SOLUTION OF MAGNESIUM METHYLATE SLOWLY AS A THIN STREAM INTO AN EXCESS OF WATER IN SAID MIXING ZONE WHILE VIOLENTLY AGITATING THE CONTENTS OF SAID MIXING ZONE AND CONTINUING THE SLOW ADDITION OF THE ANHYDROUS METHANOL SOLUTION OF MAGNESIUM METHYLATE UNTIL A DIULTE STABLE MAGNESIA HYDROSOL SUBSTANTIALLY FREE OF DISCRETE PARTICLES OF PRECIPITATED MAGNESIA AND CONTAINING ABOUT 3% BY WEIGHT OF MAGNESIA IS FORMED AND RECOVERING THE STABLE DILUTE MAGNESIA HYDROSOL.
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) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |