Patent US2834648A successfully refreshed from Google Patents.
US2834648A
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US
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Disproportionation of chlorosilanes employing amine-type catalysts
Assignee: Union Carbide Corp
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Filing: 1953-03-25
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Granted: 1958-05-13
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Expires: 1973-03-25
Abstract
No abstract record available.
Inventors
- 👤 Donald L Bailey
- 👤 Paul W Shafer
- 👤 George H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:07
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/04; C01B33/08; C01B33/107; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS OF DISPROPORTIONATING A CHLOROSILANE CONTAINING AT LEAST ONE HYDROGEN ATOM BONDED TO SILICON, WHICH COMPRISES HEATING SAID SILANE WITH A HYDROCARBYL AMINE CATALYST AT A TEMPERATURE OF AT LEAST 150*C. AND RECOVERING TWO DIFFERENT SILANE COMPOUNDS ONE OF WHICH CONTAINS MORE CHLORINE ATOMS AND FEWER HYDROGEN ATOMS ATTACHED TO SILICON THAN THE STARTING CHLOROSILANE AND THE OTHER CONTAINS MORE HYDROGEN ATOMS AND FEWER CHLORINE ATOMS ATTACHED TO SILICON THAN THE STARTING CHLOROSILANE.
Claim 2
Dependent Claim
74 words
A PROCESS OF DISPROPORTIONATING A CHLOROSILANE CONTAINING AT LEAST ONE HYDROGEN ATOM BONDED TO SILICON, WHICH COMPRISES HEATING SAID SILANE WITH A HYDROCARBYL AMINE CATALYST AT A TEMPERATURE OF AT LEAST 150*C. AND RECOVERING TWO DIFFERENT SILANE COMPOUNDS ONE OF WHICH CONTAINS MORE CHLORINE ATOMS AND FEWER HYDROGEN ATOMS ATTACHED TO SILICON THAN THE STARTING CHLOROSILANE AND THE OTHER CONTAINS MORE HYDROGEN ATOMS AND FEWER CHLORINE ATOMS ATTACHED TO SILICON THAN THE STARTING CHLOROSILANE.
References Cited (Backward Citations)
GB663810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |