US3056658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing molybdenum disilicide
Assignee: Union Carbide Corp
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Filing: 1960-09-01
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Granted: 1962-10-02
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Expires: 1980-09-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Brennan
- 👤 Stephen W Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:36
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A METHOD FOR THE PRODUCTION OF HIGH PURITY MOLYBDENUM DISILICIDE COMPRISING PREPARING A MIXTURE CONSISTING ESSENTIALLY OF A PARTICULATED OXIDIC COMPOUND OF MOLYBDENUM, PARTICULATED ALUMINUM IN AN AMOUNT SUFFICIENT TO REDUCE FROM ABOUT ONE THIRD TO ALL OF THE MOLYBDENUM OXIDE, AND PARTICULATED SILICON METAL IN AN AMOUNT SUFFICIENT TO REDUCE THE REMAINDER OF THE MOLYBDENUM OXIDE AND TO REACT WITH THE REDUCED MOLYBDENUM TO FORM MOLYBDENUM DISILICIDE, HEATING THE MIXTURE TO AN IGNITION TEMPERATURE, WHEREUPON THE MIXTURE IS IGNITED AND IS SELF-PROPAGATING TO PRODUCE HIGH PURITY MOLYBDENUM DISILICIDE AN A SLAG, AND SEPARATING THE MOLYBDENUM DISILICIDE FROM THE SLAG.
Claim 2
Independent Claim
100 words
A METHOD FOR THE PRODUCTION OF HIGH PURITY MOLYBDENUM DISILICIDE COMPRISING PREPARING A MIXTURE CONSISTING ESSENTIALLY OF A PARTICULATED OXIDIC COMPOUND OF MOLYBDENUM, PARTICULATED ALUMINUM IN AN AMOUNT SUFFICIENT TO REDUCE FROM ABOUT ONE THIRD TO ALL OF THE MOLYBDENUM OXIDE, AND PARTICULATED SILICON METAL IN AN AMOUNT SUFFICIENT TO REDUCE THE REMAINDER OF THE MOLYBDENUM OXIDE AND TO REACT WITH THE REDUCED MOLYBDENUM TO FORM MOLYBDENUM DISILICIDE, HEATING THE MIXTURE TO AN IGNITION TEMPERATURE, WHEREUPON THE MIXTURE IS IGNITED AND IS SELF-PROPAGATING TO PRODUCE HIGH PURITY MOLYBDENUM DISILICIDE AN A SLAG, AND SEPARATING THE MOLYBDENUM DISILICIDE FROM THE SLAG.
References Cited (Backward Citations)
US2619406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |