US3598853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing aminoisoalkoxyalkylsilanes and 3-(2-methyl-3-aminopropoxy) propyltrimethoxysilane produced thereby
Assignee: General Electric Co
•
Filing: 1968-07-17
•
Granted: 1971-08-10
•
Expires: 1988-07-17
Abstract
Abstract A QUATERNARY AMMONIUM HYDROXIDE TYPE OF ION EXCHANGE RESIN IS USED IN A CYANOETHYLATION TYPE REACTION BETWEEN A BRANCHED CHAIN OLEFINIC NITRILE AND AN UNSATURATED ALCOHOL. THE CYANO(BRANCHED ALKOXY)ALKENE PRODUCED IS THEN REACTED WITH A SILANE BY AN SIH-OLEFIN ADDITION REACTION. THE CORRESPONDING AMINE IS MADE FROM THE NITRILE BY HYDROGENATION AT LOW PRESSURE. ONE OF THE SILANES PRODUCED BY THE ABOVE METHOD, 3-(2-METHYL-3-AMINOPROPOXY)PROPYLTRIMETHOXYSILANE, IS AN EXCEPTIONALLY VALUABLE COMPONENT IN DETERGENT RESISTANT POLISHES.
Inventors
- 👤 Norman J Friedman
- 👤 Abe Berger
- 👤 Terry G Selin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:36
CPC Classifications
C; C09; C09G; C09G1/00; C09G1/06; C09G1/14; C09G1/16; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0892; C07F7/10; C07F7/18; C07F7/1804; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26; C11; C11D; C11D3/00; C11D3/16; C11D3/162; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |