US2901460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halosilane hydrolysis with tetrahydrofuran and water
Assignee: General Electric Co
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Filing: 1956-02-07
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Granted: 1959-08-25
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Expires: 1976-02-07
Abstract
No abstract record available.
Inventors
- 👤 Edith M Boldebuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:35
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE METHOD OF HYDROLYZING A CHLOROSILANE COMPOSITION HAVING A CHLORINE-TO-SILICON RATIO OF AT LEAST 2.5, THERE BEING PRESENT IN SAID CHLOROSILANE COMPOSTION A TRICHLOROSILANE, THE REMAINING 0 TO 1.5 SILICON- BONDED MEMBERS, OTHER THAN THE CHLORINE, OF THE CHLOROSILANE BEING SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, ALKYL, AND CYANOALKYL, ALKENYL, CYCLOALKYL, ARYL, ARALKYL, AND HALOARYL RADICALS, WHICH METHOD COMPRISES ADDING SAID CHOROSILANE COMPOSITION TO A HYDROLYSIS MEDIUM IN WHICH THE AMOUNT OF WATER USED IS SUFFICIENT TO HYDROLYZE ALL THE SILICA-BONDED CHLORINE ATOMS, THE SAID HYDROLYSIS MEDIUM BEING MAINTAINED AT A TEMPERATURE OF FROM 25* C TO 65* C, AND COMPRISING A MIXTURE OF WATER AND TETRAHYDROFURAN, THERE BEING EMPLOYED FROM 1 TO 25 MOLS WATER AND FROM 1 TO 20 MOLS TETRAHYDROFURAN PER MOL OF HYDROLYZABLE CHLORINE.
Claim 2
Independent Claim
129 words
THE METHOD OF HYDROLYZING A CHLOROSILANE COMPOSITION HAVING A CHLORINE-TO-SILICON RATIO OF AT LEAST 2.5, THERE BEING PRESENT IN SAID CHLOROSILANE COMPOSTION A TRICHLOROSILANE, THE REMAINING 0 TO 1.5 SILICON- BONDED MEMBERS, OTHER THAN THE CHLORINE, OF THE CHLOROSILANE BEING SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, ALKYL, AND CYANOALKYL, ALKENYL, CYCLOALKYL, ARYL, ARALKYL, AND HALOARYL RADICALS, WHICH METHOD COMPRISES ADDING SAID CHOROSILANE COMPOSITION TO A HYDROLYSIS MEDIUM IN WHICH THE AMOUNT OF WATER USED IS SUFFICIENT TO HYDROLYZE ALL THE SILICA-BONDED CHLORINE ATOMS, THE SAID HYDROLYSIS MEDIUM BEING MAINTAINED AT A TEMPERATURE OF FROM 25* C TO 65* C, AND COMPRISING A MIXTURE OF WATER AND TETRAHYDROFURAN, THERE BEING EMPLOYED FROM 1 TO 25 MOLS WATER AND FROM 1 TO 20 MOLS TETRAHYDROFURAN PER MOL OF HYDROLYZABLE CHLORINE.
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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |