US3795656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon compositions containing ammonium platinum adducts
Assignee: Wacker Chemical Corp
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Filing: 1973-01-02
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Granted: 1974-03-05
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Expires: 1993-01-02
Abstract
Abstract ORGANOSILICON COMPOSITION WHICH CONTAIN AMMONIUM PLATINUM ADDUCTS. THE COMPOSTIONS ARE PREPARED BY REACTING CHLOROPLATINIC ACID WITH AMINOFUNCTIONAL ORGANOSILICON COMPOUNDS. THESE COMPOSITIONS ARE USEFUL AS CATALYSTS FOR THE ADDITION OF SILICON BONDED HYDROGEN GROUPS TO UNSATURTED ORGANIC COMPOUNDS. THE NEW CATALYSTS HAVE BETTER SOLUBILITY IN THE REACTION MEDIA AND A EFFETIVE AT VERY LOW CONCENTRATIONS.
Inventors
- 👤 E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:53
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/398; C07; C07F; C07F15/00; C07F15/0006; C07F15/0086; C07F15/0093; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0889
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |