US3286475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of agglomerating and stabilizing particulate matter by chemical treatment
Assignee: ChampionX LLC
•
Filing: 1963-03-27
•
Granted: 1966-11-22
•
Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Nicholas M Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:38
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; C09K17/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS OF AGGREGATING PARTICULATE MATTER TO PRODUCE EXCEPTIONALLY HIGH STRENGTH AGGLOMERATES THEREOF WHICH COMPRISES THE STEPS OF CONTACTING SAID MATTER IN THE PRESENCE OF WATER WITH A POLYMERIZABLE MIXTURE COMPRISING 10-49% BY WEIGHT OF AN ACRYLAMIDE BASED MONOMER, 0.1-4.0% BY WEIGHT OF A CROSS-LINKING AGENT CAPABLE OF REACTION WITH SAID ACRYLAMIDE, 0.2-8.0% BY WEIGHT OF A CATALYST, AND 10-49% BY WEIGHT OF AN ALKALINE EARTH METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES AND OXIDES, AND EFFECTING POLYMERIZATION OF SAID MIXTURE IN THE PRESENCE OF SAID PARTICULATE MATTER WHEREBY SAID MATTER AND SAID MIXTURE ARE CONVERTED TO A SUBSTANTIALLY WATER-IMPERMEABLE MASS, FURTHER CHARACTERIZED AS POSSESSING SUPERIOR STRENGTH.
Claim 2
Dependent Claim
109 words
A PROCESS OF AGGREGATING PARTICULATE MATTER TO PRODUCE EXCEPTIONALLY HIGH STRENGTH AGGLOMERATES THEREOF WHICH COMPRISES THE STEPS OF CONTACTING SAID MATTER IN THE PRESENCE OF WATER WITH A POLYMERIZABLE MIXTURE COMPRISING 10-49% BY WEIGHT OF AN ACRYLAMIDE BASED MONOMER, 0.1-4.0% BY WEIGHT OF A CROSS-LINKING AGENT CAPABLE OF REACTION WITH SAID ACRYLAMIDE, 0.2-8.0% BY WEIGHT OF A CATALYST, AND 10-49% BY WEIGHT OF AN ALKALINE EARTH METAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES AND OXIDES, AND EFFECTING POLYMERIZATION OF SAID MIXTURE IN THE PRESENCE OF SAID PARTICULATE MATTER WHEREBY SAID MATTER AND SAID MIXTURE ARE CONVERTED TO A SUBSTANTIALLY WATER-IMPERMEABLE MASS, FURTHER CHARACTERIZED AS POSSESSING SUPERIOR STRENGTH.
References Cited (Backward Citations)
US2801983A
Cited
US2856380A
Cited
US2898320A
Cited
US2838466A
Cited
US2865177A
Cited
US2801984A
Cited
US2801985A
Cited
US3021298A
Cited
US3056757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |