Patent US3090765A successfully refreshed from Google Patents.
US3090765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of hydrolyzing chlorosilanes
Assignee: Wacker Chemie AG
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Filing: 1960-07-13
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Granted: 1963-05-21
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Expires: 1980-07-13
Abstract
No abstract record available.
Inventors
- 👤 Nitzsche Siegfried
- 👤 Pirson Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:32
CPC Classifications
C; C08; C08G; C08G77/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD FOR PRODUCING POWDERY, RESINOUS HYDROLYZATES BY HYDROLYZING CHLOROSILANES CONTAINING 15 TO 100 MOL PERCENT RSICL3, 0 TO 50 MOL PERCENT OF ORGANOCHLOROSILANES SELECTED FROM THE GROUP CONSISTING OF R2SICL2, RHSICL2 AND R2HSICL AND 0 TO 85 MOL PERCENT OF INORGANIC CHLOROSILANES SELECTED FROM THE GROUP CONSISTING OF HSSICL3 AND SINCL2N+2 WHERE N IS A POSITIVE INTEGER, WHERE EACH R REPRESENTS AN ORGANIC SUBSTITUENT BONDED TO SILICON BY C-SI BONDING AND IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ALKENYL RADICALS, EMPLOYING AN EXCESS OF WATER CONTAINING 1 TO 50 PERCENT BY WEIGHT BASED ON THE WEIGHT OF CHLOROSILANES TO BE HYDROLYZED, OF A FINE PARTICLE FUME SILICA HAVING AN AVERAGE PARTICLE SIZE IN THE RANGE OF 3 TO 100 MILLIMICRONS, WITH STIRRING DURING ADDITION OF THE CHLOROSILANE TO THE WATER-FUME SILICA MIXTURE.
Claim 2
Independent Claim
136 words
A METHOD FOR PRODUCING POWDERY, RESINOUS HYDROLYZATES BY HYDROLYZING CHLOROSILANES CONTAINING 15 TO 100 MOL PERCENT RSICL3, 0 TO 50 MOL PERCENT OF ORGANOCHLOROSILANES SELECTED FROM THE GROUP CONSISTING OF R2SICL2, RHSICL2 AND R2HSICL AND 0 TO 85 MOL PERCENT OF INORGANIC CHLOROSILANES SELECTED FROM THE GROUP CONSISTING OF HSSICL3 AND SINCL2N+2 WHERE N IS A POSITIVE INTEGER, WHERE EACH R REPRESENTS AN ORGANIC SUBSTITUENT BONDED TO SILICON BY C-SI BONDING AND IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ALKENYL RADICALS, EMPLOYING AN EXCESS OF WATER CONTAINING 1 TO 50 PERCENT BY WEIGHT BASED ON THE WEIGHT OF CHLOROSILANES TO BE HYDROLYZED, OF A FINE PARTICLE FUME SILICA HAVING AN AVERAGE PARTICLE SIZE IN THE RANGE OF 3 TO 100 MILLIMICRONS, WITH STIRRING DURING ADDITION OF THE CHLOROSILANE TO THE WATER-FUME SILICA MIXTURE.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |