US3227657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycol coated attapulgite clay and compositions including the same
Assignee: Minerals and Chemicals Philipp Corp
•
Filing: 1962-09-20
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Granted: 1966-01-04
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Haden
- 👤 James A Polon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C09; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/035; C10; C10M; C10M5/00; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/14; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A METHOD OF TREATING ATTAPULGITE CLAY TO IMPROVE THE DISPERSIBILITY OF THE CLAY IN POLAR LIQUIDS WHICH COMPRISES FORMING A MIXTURE OF ATTAPULGITE CLAY WHICH CONTAINS ALL OF ITS NATIVE WATER OF CRYSTALLIZATION AND AT LEAST A MAJOR PART OF ITS NATIVE FREE MOISTURE WITH FROM 1/2 TO 50 PERCENT, BASED ON THE VOLATILE FREE WEIGHT OF SAID CLAY, OF AT LEAST ONE ORGANIC COMPOUND HEREAFTER SET FORTH AND WATER IN AMOUNT AT LEAST SUFFICIENT TO FORM A MIXTURE OF PLASTIC CONSISTENCY, SAID ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF: A WATER-SOLUBLE MONOMERIC GLYCOL HAVING AT LEAST 3 CARBON ATOMS PER MOLECULE, A WATERSOLUBLE ALIPHATIC ETHER OF A MONOMERIC GLYCOL, WATERSOLUBLE POLYETHYLENE GLYCOL, AND WATER-SOLUBLE POLYPROPYLENE GLYCOL, AGITATING THE MIXTURE TO FORM AN APPARENTLY HOMOGENEOUS MASS WHEREBY INDIVIDUAL ATTAPULGITE PARTICLES BECOME SEPARATED BY AN AQUEOUS SOLUTION OF SAID ORGANIC COMPOUND AND EVAPORATING SUBSTANTIALLY ALL OF THE FREE MOISTURE FROM SAID MIXTURE AT A TEMPERATURE BELOW WHICH SAID ORGANIC COMPOUND HAS APPRECIABLE VAPOR PRESSURE, WHEREBY SAID ORGANIC COMPOUND REPLACES FREE MOISTURE ORIGINALLY ASSOCIATED WITH INDIVIDUAL ATTAPULGITE CLAY PARTICLES.
Claim 2
Independent Claim
179 words
A METHOD OF TREATING ATTAPULGITE CLAY TO IMPROVE THE DISPERSIBILITY OF THE CLAY IN POLAR LIQUIDS WHICH COMPRISES FORMING A MIXTURE OF ATTAPULGITE CLAY WHICH CONTAINS ALL OF ITS NATIVE WATER OF CRYSTALLIZATION AND AT LEAST A MAJOR PART OF ITS NATIVE FREE MOISTURE WITH FROM 1/2 TO 50 PERCENT, BASED ON THE VOLATILE FREE WEIGHT OF SAID CLAY, OF AT LEAST ONE ORGANIC COMPOUND HEREAFTER SET FORTH AND WATER IN AMOUNT AT LEAST SUFFICIENT TO FORM A MIXTURE OF PLASTIC CONSISTENCY, SAID ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF: A WATER-SOLUBLE MONOMERIC GLYCOL HAVING AT LEAST 3 CARBON ATOMS PER MOLECULE, A WATERSOLUBLE ALIPHATIC ETHER OF A MONOMERIC GLYCOL, WATERSOLUBLE POLYETHYLENE GLYCOL, AND WATER-SOLUBLE POLYPROPYLENE GLYCOL, AGITATING THE MIXTURE TO FORM AN APPARENTLY HOMOGENEOUS MASS WHEREBY INDIVIDUAL ATTAPULGITE PARTICLES BECOME SEPARATED BY AN AQUEOUS SOLUTION OF SAID ORGANIC COMPOUND AND EVAPORATING SUBSTANTIALLY ALL OF THE FREE MOISTURE FROM SAID MIXTURE AT A TEMPERATURE BELOW WHICH SAID ORGANIC COMPOUND HAS APPRECIABLE VAPOR PRESSURE, WHEREBY SAID ORGANIC COMPOUND REPLACES FREE MOISTURE ORIGINALLY ASSOCIATED WITH INDIVIDUAL ATTAPULGITE CLAY PARTICLES.
References Cited (Backward Citations)
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US2940938A
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US2864718A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |