US2860153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing beta-cyanoethyltrichlorosilane
Assignee: Dow Silicones Corp
•
Filing: 1957-04-25
•
Granted: 1958-11-11
•
Expires: 1977-04-25
Abstract
No abstract record available.
Inventors
- 👤 John C Saam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:19
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF PREPARING B-CYANOETHYLTRICHLOROSILANE WHICH COMPRISES HEATING AT A TEMPERATURE OF LESS THAN 150*C. A MIXTURE OF ACRYLONITRILE, TRICHLOROSILANE AND A A CATALYTIC AMOUNT OF AN AMIDE SELECTED FROM THE GROUP CONSISTING OF RCONR''2 AND ARNHOCOR" WHERE R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, SATURATED ALIPHATIC HYDROCARBON RADICALS AND AROMATIC HYDROCARBON RADICALS, R'' IS A LOWER ALKYL RADICAL, AR IS AN ARYL HYDROCARBON RADICAL AND R" IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS.
Claim 2
Independent Claim
80 words
A METHOD OF PREPARING B-CYANOETHYLTRICHLOROSILANE WHICH COMPRISES HEATING AT A TEMPERATURE OF LESS THAN 150*C. A MIXTURE OF ACRYLONITRILE, TRICHLOROSILANE AND A A CATALYTIC AMOUNT OF AN AMIDE SELECTED FROM THE GROUP CONSISTING OF RCONR''2 AND ARNHOCOR" WHERE R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, SATURATED ALIPHATIC HYDROCARBON RADICALS AND AROMATIC HYDROCARBON RADICALS, R'' IS A LOWER ALKYL RADICAL, AR IS AN ARYL HYDROCARBON RADICAL AND R" IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL RADICALS.
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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |