US3244639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a stable titaniacoated silica sol
Assignee: ChampionX LLC
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Filing: 1961-09-20
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Granted: 1966-04-05
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Expires: 1981-09-20
Abstract
No abstract record available.
Inventors
- 👤 Mindick Morris
- 👤 Arthur C Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:52
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C09C1/0084; C09C1/0087; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/146; C01B33/149; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/053; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF PRODUCING A STABLE TITANIA-COATED SILICA SOL WHICH COMPRISES THE STEPS OF ADDING A WATERINSOLUBLE HYDROLYZABLE ORGANIC TITANIUM COMPOUND TO AN ACID STABILIZED SILICA SOL WITH A PH OF LESS THAN 2.0, SAID SILICA SOL HAVING AS ITS DISPERSED PHASE DENSE, SPHERICAL, DISCRETE PARTICLES OF SILICA AND AS ITS CONTINUOUS PHASE AN AQUEOUS LIQUID, SAID DISPERSED PHASE COMPRISING FROM 1.0-60% OF THE TOTAL WEIGHT OF THE SILICA SOL, AGITATING SAID STABILIZED SILICA SOL DURING ADDITION OF SAID TITANIUM COMPOUND AND HEATING THE RESULTANT SOLUTION FROM ABOUT 50-100*C. FOR AT LEAST 1/4 HOUR WHILE MAINTAINING SAID PH VALUE, SAID HYDROLYZABLE ORGANIC TITANIUM COMPOUND BEING ADDED IN A SUFFICIENT AMOUNT TO COAT SAID SILICA PARTICLES WITH 5.0-60% BY WEIGHT OF TITANIA EXPRESSED AS TIO2 BASED ON THE WEIGHT OF SILICA EXPRESSED AS SIO2.
Claim 2
Independent Claim
133 words
THE METHOD OF PRODUCING A STABLE TITANIA-COATED SILICA SOL WHICH COMPRISES THE STEPS OF ADDING A WATERINSOLUBLE HYDROLYZABLE ORGANIC TITANIUM COMPOUND TO AN ACID STABILIZED SILICA SOL WITH A PH OF LESS THAN 2.0, SAID SILICA SOL HAVING AS ITS DISPERSED PHASE DENSE, SPHERICAL, DISCRETE PARTICLES OF SILICA AND AS ITS CONTINUOUS PHASE AN AQUEOUS LIQUID, SAID DISPERSED PHASE COMPRISING FROM 1.0-60% OF THE TOTAL WEIGHT OF THE SILICA SOL, AGITATING SAID STABILIZED SILICA SOL DURING ADDITION OF SAID TITANIUM COMPOUND AND HEATING THE RESULTANT SOLUTION FROM ABOUT 50-100*C. FOR AT LEAST 1/4 HOUR WHILE MAINTAINING SAID PH VALUE, SAID HYDROLYZABLE ORGANIC TITANIUM COMPOUND BEING ADDED IN A SUFFICIENT AMOUNT TO COAT SAID SILICA PARTICLES WITH 5.0-60% BY WEIGHT OF TITANIA EXPRESSED AS TIO2 BASED ON THE WEIGHT OF SILICA EXPRESSED AS SIO2.
References Cited (Backward Citations)
US3007878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |