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US2963448A Expired / Lapsed US ⏱️ 0.0 years remaining

Tableting process for granular porous solid particles

Assignee: Texaco Inc
•
Filing: 1957-05-06
•
Granted: 1960-12-06
•
Expires: 1977-05-06
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Abstract

No abstract record available.

Inventors

  • 👤 Watson A Ray

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:08
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/28; Y; Y10; Y10S; Y10S502/00; Y10S502/523

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 231 words
A PROCESS FOR TABLETING GRANULAR POROUS SOLID PARTICLES WHICH ARE CAPABLE OF SORBING WATER TO THE EXTENT OF AT LEAST 5 PERCENT WITHOUT LOSING THEIR DISCRETE GRANULAR APPEARANCE SELECTED FROM THE GROUP CONSISTING OF SOLID CATALYSTS AND CATALYST SUPPORTS FOR HYDROCARBON TREATING OPERATIONS WHICH COMPRISES: MIXING A MASS OF SAID PARTICLES WITH ABOUT 1 TO 10% OF AN ASHLESS SYNTHETIC SURFACE ACTIVE AGENT, SAID SURFACE ACTIVE AGENT HAVING A MOLECULAR WEIGHT ABOVE ABOUT 100, AND A 1% BY WEIGHT WATER SOLUTION THEREOF BEING CAPABLE OF LOWERING THE SURFACE TENSION OF WATER TO A VALUE BELOW ABOUT 50 DYNES PER CENTIMETER, 0.5 TO 10% OF A FATTY PELLETING LUBRICANT SELECTED FROM THE GROUP CONSISTING OF VEGETABLE OILS AND FATS, ANIMAL OILA AND FATS, HYDROGENATED VEGETABLE OILS AND FATS, HYDROGENATED ANIMAL OIL AND FATS, GLYCEROL OLEATES AND GLYCERIDES OF LONG CHAIN FATTY ACIDS, AND SUFFICIENT WATER TO ESTABLISH WATER CONTENT OF SAID MASS BETWEEN ABOUT 5% AND ABOUT 40%, THE FOREGOING PERCENTAGES BEING BASED UPON THE DRY WEIGHT OF THE SOLID PARTICLES PRESENT IN SAID MASS, THE PROPORTION OF WATER IN THE RESULTING MIXTURE BEING REGULATED WITHIN THE ABOVE LIMITS FOR MAINTAINING THE PARTICULATE LOOSE CHARACTER OF THE SOLIDS INITIALLY CONSTITUTING SAID MASS, DISCHARGING A PORTION OF SAID RESULTING DAMPENED MIXTURE INTO A CONFINING DIE, COMPRESSIVELY SHAPING SAID PORTION IN SAID DIE TO FORM A TABLET, AND REMOVING SAID TABLET FROM SAID DIE.
Claim 2
Dependent Claim 231 words
A PROCESS FOR TABLETING GRANULAR POROUS SOLID PARTICLES WHICH ARE CAPABLE OF SORBING WATER TO THE EXTENT OF AT LEAST 5 PERCENT WITHOUT LOSING THEIR DISCRETE GRANULAR APPEARANCE SELECTED FROM THE GROUP CONSISTING OF SOLID CATALYSTS AND CATALYST SUPPORTS FOR HYDROCARBON TREATING OPERATIONS WHICH COMPRISES: MIXING A MASS OF SAID PARTICLES WITH ABOUT 1 TO 10% OF AN ASHLESS SYNTHETIC SURFACE ACTIVE AGENT, SAID SURFACE ACTIVE AGENT HAVING A MOLECULAR WEIGHT ABOVE ABOUT 100, AND A 1% BY WEIGHT WATER SOLUTION THEREOF BEING CAPABLE OF LOWERING THE SURFACE TENSION OF WATER TO A VALUE BELOW ABOUT 50 DYNES PER CENTIMETER, 0.5 TO 10% OF A FATTY PELLETING LUBRICANT SELECTED FROM THE GROUP CONSISTING OF VEGETABLE OILS AND FATS, ANIMAL OILA AND FATS, HYDROGENATED VEGETABLE OILS AND FATS, HYDROGENATED ANIMAL OIL AND FATS, GLYCEROL OLEATES AND GLYCERIDES OF LONG CHAIN FATTY ACIDS, AND SUFFICIENT WATER TO ESTABLISH WATER CONTENT OF SAID MASS BETWEEN ABOUT 5% AND ABOUT 40%, THE FOREGOING PERCENTAGES BEING BASED UPON THE DRY WEIGHT OF THE SOLID PARTICLES PRESENT IN SAID MASS, THE PROPORTION OF WATER IN THE RESULTING MIXTURE BEING REGULATED WITHIN THE ABOVE LIMITS FOR MAINTAINING THE PARTICULATE LOOSE CHARACTER OF THE SOLIDS INITIALLY CONSTITUTING SAID MASS, DISCHARGING A PORTION OF SAID RESULTING DAMPENED MIXTURE INTO A CONFINING DIE, COMPRESSIVELY SHAPING SAID PORTION IN SAID DIE TO FORM A TABLET, AND REMOVING SAID TABLET FROM SAID DIE.

References Cited (Backward Citations)

US2580708A Cited
US1996220A Cited
US2001134A Cited
US2027532A Cited
US2386604A Cited
US2485128A Cited
US2614050A Cited
US2829427A Cited
US2694245A Cited
FR1068499A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-12-06 1964-06-06 1964-12-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-12-06 1968-06-06 1968-12-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-12-06 1972-06-06 1972-12-06 $7700.00 Window Closed / Lapsed

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