US2929792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of shaped catalysts
Assignee: Chemetron Corp
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Filing: 1957-06-26
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Granted: 1960-03-22
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Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Melvin R Arnold
- 👤 Edward K Dienes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:57
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J37/0018; B01J23/00; B01J23/16; B01J23/24; B01J23/30; B01J23/70; B01J23/74; B01J23/755; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/868
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN THE PREPARATION OF SHAPED CATALYST PELLETS BY COMPACTING PULVERULENT CATALYST INGREDIENTS, THE IMPROVEMENT WHICH COMPRISES ADMIXING WITH SAID PULVERULENT CATALYST INGREDIENTS AN AQUEOUS, VINYL-TYPE RESIN LATEX, THE AMOUNT OF LATEX BEING SUCH THAT THE AMOUNT OF RESIN THEREIN IS BETWEEN ABOUT ONE-HALF PERCENT AND ABOUT FIVE PERCENT OF THE WEIGHT OF THE CATALYST INGREDIENTS, THE RESIN OF SAID LATEX HAVING A PARTICLE SIZE BETWEEN ABOUT 0.05 AND 15 MICRONS, ADJUSTING THE WATER CONTENT OF THE MIXTURE OF CATALYST INGREDIENTS AND LATEX TO A VALUE SUCH THAT THE RESIN COMPONENT OF SAID LATEX EXHIBITS BINDING PROPERTIES AND COMPACTING THE THUS TREATED CATALYST INGREDIENTS INTO SHAPED CATALYST PELLETS.
Claim 2
Dependent Claim
107 words
IN THE PREPARATION OF SHAPED CATALYST PELLETS BY COMPACTING PULVERULENT CATALYST INGREDIENTS, THE IMPROVEMENT WHICH COMPRISES ADMIXING WITH SAID PULVERULENT CATALYST INGREDIENTS AN AQUEOUS, VINYL-TYPE RESIN LATEX, THE AMOUNT OF LATEX BEING SUCH THAT THE AMOUNT OF RESIN THEREIN IS BETWEEN ABOUT ONE-HALF PERCENT AND ABOUT FIVE PERCENT OF THE WEIGHT OF THE CATALYST INGREDIENTS, THE RESIN OF SAID LATEX HAVING A PARTICLE SIZE BETWEEN ABOUT 0.05 AND 15 MICRONS, ADJUSTING THE WATER CONTENT OF THE MIXTURE OF CATALYST INGREDIENTS AND LATEX TO A VALUE SUCH THAT THE RESIN COMPONENT OF SAID LATEX EXHIBITS BINDING PROPERTIES AND COMPACTING THE THUS TREATED CATALYST INGREDIENTS INTO SHAPED CATALYST PELLETS.
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) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |