US3328448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilanols and method of preparation
Assignee: Dow Silicones Corp
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Filing: 1962-03-29
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Granted: 1967-06-27
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Garrett H Barnes
- 👤 Robert L Merker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:40
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A METHOD OF PREPARING ORGANOSILICON COMPOUNDS HAVING AT LEAST ONE SIOH GROUP WHICH COMPRISES REACTING (1) AN ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE SIH GROUP AND HAVING ON THE AVERAGE OF AT LEAST ONE R GROUP PER SILICON ATOM IN WHICH R IS ATTACHED TO THE SILICON THROUGH A CARBON ATOM AND ANY REMAINING VALENCES OF THE SILICON ATOMS IN SAID COMPOUND BEING SATISFIED BY OXYGEN ATOMS OF SIOSI LINKAGES, R BEING FREE OF ALIPHATIC UNSATURATION AND BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS, HALOHYDROCARBON RADICALS, AND HYDROCARBON EITHER RADICALS, THERE BEING NO MORE THAN ONE ETHER LINKAGE PER CARBON ATOM WITH (2) WATER IN CONTACT WITH (3) A CATALYST SELECTED FROM THE GROUP CONSISTING OF CHLOROPLATINIC ACID, ZEISE''S SALT, PALLADIUM, RHODIUM AND RUTHENIUM, WHEREBY THE SIH IS CONVERTED INTO SIOH.
Claim 2
Independent Claim
133 words
A METHOD OF PREPARING ORGANOSILICON COMPOUNDS HAVING AT LEAST ONE SIOH GROUP WHICH COMPRISES REACTING (1) AN ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE SIH GROUP AND HAVING ON THE AVERAGE OF AT LEAST ONE R GROUP PER SILICON ATOM IN WHICH R IS ATTACHED TO THE SILICON THROUGH A CARBON ATOM AND ANY REMAINING VALENCES OF THE SILICON ATOMS IN SAID COMPOUND BEING SATISFIED BY OXYGEN ATOMS OF SIOSI LINKAGES, R BEING FREE OF ALIPHATIC UNSATURATION AND BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS, HALOHYDROCARBON RADICALS, AND HYDROCARBON EITHER RADICALS, THERE BEING NO MORE THAN ONE ETHER LINKAGE PER CARBON ATOM WITH (2) WATER IN CONTACT WITH (3) A CATALYST SELECTED FROM THE GROUP CONSISTING OF CHLOROPLATINIC ACID, ZEISE''S SALT, PALLADIUM, RHODIUM AND RUTHENIUM, WHEREBY THE SIH IS CONVERTED INTO SIOH.
Claim 3
Dependent Claim
6 words
THE CYCLIC COMPOSITION OF THE FORMULA
Claim 4
Dependent Claim
6 words
THE CYCLIC COMPOSITION OF THE FORMULA
Claim 5
Dependent Claim
6 words
A SILOXANOL OF THE GENERAL FORMULA
Claim 6
Dependent Claim
6 words
A SILOXANOL OF THE GENERAL FORMULA
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |