US2829100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of greases gelled with polymer coated clays
Assignee: Shell Development Co
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Filing: 1955-12-12
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Granted: 1958-04-01
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Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jack W Armstrong
- 👤 Donald M Preiss
- 👤 John A Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:49
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C10; C10M; C10M5/00; C10M7/00; C10M2201/00; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/085; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/14; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/101; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/04; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/10; C10M2215/102; C10M2215/16; C10M2215/22; C10M2215/221; C10M2215/222; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/064; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/043; C10M2229/044; C10M2229/05; C10M2229/051; C10N; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN THE PROCESS FOR THE FORMATION OF A GREASE COMPOSITION, WHEREIN A CLAY HYDROGEL IS FILTERED FROM THE MAJORITY OF THE WATER PRESENT THEREIN, THE REMAINING WATER IS DISPLACED BY A WATER-MISCIBLE ORGANIC SOLVENT, A GREASEFORMING PROPORTION OF AN ORGANO-SILICONE FLUID HAVING A LUBRICATING OIL VISCOSITY IS ADDED AND THE SOLVENT REMOVED BY EVAPORATION, THE IMPROVEMENT COMPRISING ADDING 5-200% BY WEIGHT BASED ON THE CLAY OR AN AMINOPLASTFORMING MONOMERIC AMINO COMPOUND, HAVING AT LEAST 2 PRIMARY AMINO GROUPS PER MOLECULE ADJACENT TO CARBON ATOM HAVING A DOUBLE BOND, PRIOR TO FILTRATION WHEREBY A CLAY HYDROGEN OF IMPROVED FILTERABILITY IS FORMED, ADDING 1.5-4 MOLS, PER MOL OF AMINO COMPOUND, OF AN AMINOPLAST-FORMING ALDEHYDE SUBSEQUENT TO WATER DISPLACEMENT AND HEATING THE MIXTURE, SUBSEQUENT TO SOLVENT REMOVAL FOR 4-48 HOURS AT 100-250*C., WHEREBY A GREASE COMPOSITION HAVING IMPROVED WATER RESISTANCE IS FORMED.
Claim 2
Dependent Claim
139 words
IN THE PROCESS FOR THE FORMATION OF A GREASE COMPOSITION, WHEREIN A CLAY HYDROGEL IS FILTERED FROM THE MAJORITY OF THE WATER PRESENT THEREIN, THE REMAINING WATER IS DISPLACED BY A WATER-MISCIBLE ORGANIC SOLVENT, A GREASEFORMING PROPORTION OF AN ORGANO-SILICONE FLUID HAVING A LUBRICATING OIL VISCOSITY IS ADDED AND THE SOLVENT REMOVED BY EVAPORATION, THE IMPROVEMENT COMPRISING ADDING 5-200% BY WEIGHT BASED ON THE CLAY OR AN AMINOPLASTFORMING MONOMERIC AMINO COMPOUND, HAVING AT LEAST 2 PRIMARY AMINO GROUPS PER MOLECULE ADJACENT TO CARBON ATOM HAVING A DOUBLE BOND, PRIOR TO FILTRATION WHEREBY A CLAY HYDROGEN OF IMPROVED FILTERABILITY IS FORMED, ADDING 1.5-4 MOLS, PER MOL OF AMINO COMPOUND, OF AN AMINOPLAST-FORMING ALDEHYDE SUBSEQUENT TO WATER DISPLACEMENT AND HEATING THE MIXTURE, SUBSEQUENT TO SOLVENT REMOVAL FOR 4-48 HOURS AT 100-250*C., WHEREBY A GREASE COMPOSITION HAVING IMPROVED WATER RESISTANCE IS FORMED.
References Cited (Backward Citations)
US2623853A
Cited
US2681314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |