Patent US2842504A successfully refreshed from Google Patents.
US2842504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation catalyst
Assignee: Phillips Petroleum Co
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Filing: 1954-08-23
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Granted: 1958-07-08
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Expires: 1974-08-23
Abstract
No abstract record available.
Inventors
- 👤 Rufus V Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:12
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/02; B; B01; B01J; B01J23/00; B01J23/70; C08F; C08F8/00; C08F8/04; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
THE METHOD OF PREPARING A FREE-FLOWING NICKEL HYDROGENATION CATALYST IN STORABLE AND USABLE FORM WHICH COMPRISES REDUCING A FINELY DIVIDED NICKEL COMPOUND CATALYST WHICH IS ADVERSELY AFFECTED BY OXYGEN, IN AN ATMOSPHERE OF HYDROGEN; COOLING SAID REDUCED CATALYST IN AN ATMOSPHERE OF HYDROGEN; DIRECTLY INTRODUCING SAID CATALYST INTO A SOLUTION CONTAINING A SOLVENT SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANE, METHYLCYCLOHEXANE, DECALIN, BENZENE, TOLUENE, DIOXANE, ISOOCTANE, ISOPENTANE, NORMAL HEPTANE, AND TETRALIN, AND A SUFFICIENT AMOUNT SO AS TO COAT SAID CATALYST WITH FROM 5 TO 100 WEIGHT PERECENT THEREOF OF A RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF UNHYDROGENATED POLYMERS OF BUTADIENE, UNHYDROGENATED COPOLYMERS OF BUTADIENE-STYRENE, UNHYDROGENATED COPOLYMERS OF ISOPRENE-STYRENE, SAID UNHYDROGENATED POLYMERS AND COPOLYMERS HAVING A MOONEY VALUE ABOVE ABOUT 50 (ML-4) MEASURED AT 212* F., HYDROGENATED POLYMERS OF BUTADIENE, HYDROGENATED COPOLYMERS OF BUTADIENE-STYRENE AND HYDROGENATED COPOLYMERS OF ISOPRENE-STYRENE PREPARED BY HYDROGENATING THE CORRESPONDING UNHYDROGENATED COMPOUND HAVING A MOONEY VALUE ABOVE ABOUT 15 (ML-4) MEASURED AT 212*F.; AND DRYING THE RESULTING MIXTURE SO AS TO REMOVE SAID SOLVENT AND LEAVE THE FINELY DIVIDED CATALYST COATED WITH THE RUBBERY POLYMER.
Claim 2
Independent Claim
181 words
THE METHOD OF PREPARING A FREE-FLOWING NICKEL HYDROGENATION CATALYST IN STORABLE AND USABLE FORM WHICH COMPRISES REDUCING A FINELY DIVIDED NICKEL COMPOUND CATALYST WHICH IS ADVERSELY AFFECTED BY OXYGEN, IN AN ATMOSPHERE OF HYDROGEN; COOLING SAID REDUCED CATALYST IN AN ATMOSPHERE OF HYDROGEN; DIRECTLY INTRODUCING SAID CATALYST INTO A SOLUTION CONTAINING A SOLVENT SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXANE, METHYLCYCLOHEXANE, DECALIN, BENZENE, TOLUENE, DIOXANE, ISOOCTANE, ISOPENTANE, NORMAL HEPTANE, AND TETRALIN, AND A SUFFICIENT AMOUNT SO AS TO COAT SAID CATALYST WITH FROM 5 TO 100 WEIGHT PERECENT THEREOF OF A RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF UNHYDROGENATED POLYMERS OF BUTADIENE, UNHYDROGENATED COPOLYMERS OF BUTADIENE-STYRENE, UNHYDROGENATED COPOLYMERS OF ISOPRENE-STYRENE, SAID UNHYDROGENATED POLYMERS AND COPOLYMERS HAVING A MOONEY VALUE ABOVE ABOUT 50 (ML-4) MEASURED AT 212* F., HYDROGENATED POLYMERS OF BUTADIENE, HYDROGENATED COPOLYMERS OF BUTADIENE-STYRENE AND HYDROGENATED COPOLYMERS OF ISOPRENE-STYRENE PREPARED BY HYDROGENATING THE CORRESPONDING UNHYDROGENATED COMPOUND HAVING A MOONEY VALUE ABOVE ABOUT 15 (ML-4) MEASURED AT 212*F.; AND DRYING THE RESULTING MIXTURE SO AS TO REMOVE SAID SOLVENT AND LEAVE THE FINELY DIVIDED CATALYST COATED WITH THE RUBBERY POLYMER.
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |