US3210274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of oleophilic clay powder thickened fluids
Assignee: Shell USA Inc
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Filing: 1963-01-21
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Granted: 1965-10-05
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Gerard P Caruso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:16
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; B; B01; B01J; B01J19/00; B01J19/06; C10; C10M; C10M5/00; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/085; C10M2201/14; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A PROCESS FOR THE PREPARATION OF A THICKENED OLEAGINOUS COMPOSITION WHICH COMPRISES (1) FORMING A CLAY HYDROSOL OF 1-5% BY WEIGHT OF AHIGH BASE EXCHANGE CLAY, (2) ADDING THERETO 4-12% BY WEIGHT, BASED ON THE CLAY, OF PHOSPHORIC ACID AND 50-75% BY WEIGHT OF AN OLEOPHILLIC FATTY ACID AMIDO AMINE, (3) DRYING THE MIXTURE SO FORMED TO OBTAIN A PULVERULENT PRODUCT CONTAINING 2-5-25% BY WEIGHT OF WATER, (4) DISPERSING 0.05-05% BY WEIGHT, BASED ON THE OLEAGINOUS VEHICLE, OF AN OLEOPHILIC FATTY ACID AMIDO AMINE, IN AN OLEAGINOUS VEHICLE, (5) AND HOMOGENIZING A MAJOR AMOUNT OF THE AMINECONTAINING VEHICLE WITH A THICKENING AMOUNT OF THE PULVERULENT PRODUCT AT A TEMPERATURE ABOVE THE BOILING POINT OF WATER WHEREBY WATER EVAPORATES AND A THICKENED OLEAGINOUS COMPOSITION CONTAINING 0.02-0.5% BY WEIGHT OF WATER IF FORMED.
Claim 2
Dependent Claim
131 words
A PROCESS FOR THE PREPARATION OF A THICKENED OLEAGINOUS COMPOSITION WHICH COMPRISES (1) FORMING A CLAY HYDROSOL OF 1-5% BY WEIGHT OF AHIGH BASE EXCHANGE CLAY, (2) ADDING THERETO 4-12% BY WEIGHT, BASED ON THE CLAY, OF PHOSPHORIC ACID AND 50-75% BY WEIGHT OF AN OLEOPHILLIC FATTY ACID AMIDO AMINE, (3) DRYING THE MIXTURE SO FORMED TO OBTAIN A PULVERULENT PRODUCT CONTAINING 2-5-25% BY WEIGHT OF WATER, (4) DISPERSING 0.05-05% BY WEIGHT, BASED ON THE OLEAGINOUS VEHICLE, OF AN OLEOPHILIC FATTY ACID AMIDO AMINE, IN AN OLEAGINOUS VEHICLE, (5) AND HOMOGENIZING A MAJOR AMOUNT OF THE AMINECONTAINING VEHICLE WITH A THICKENING AMOUNT OF THE PULVERULENT PRODUCT AT A TEMPERATURE ABOVE THE BOILING POINT OF WATER WHEREBY WATER EVAPORATES AND A THICKENED OLEAGINOUS COMPOSITION CONTAINING 0.02-0.5% BY WEIGHT OF WATER IF FORMED.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |