US3340283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organotin-trihalides
Assignee: M&T Chemicals Inc
•
Filing: 1964-05-20
•
Granted: 1967-09-05
•
Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Carl R Gloskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:45
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF PREPARING ORGANOTIN COMPOUNDS RSNX3 BY THE REACTION SNX2+RX$RSNX3 WHEREIN R IS A HYDROCARBON GROUP, SN IS TIN, AND X IS AN ACTIVE HALOGEN WHICH COMPRISES REACTING ANHYDROUS SNX2 WITH RX IN THE PRESENCE OF AN AMINE CATALYST IN A REACTION MIXTURE THEREBY FORMING RSNX3; MAINTAINING SUBSTANTIALLY EQUIVALENT AMOUNTS OF SNX2 AND RX IN SAID REACTION MIXTURE DURING SAID REACTION; MAINTAINING SAID REACTION MIXTURE AT 100*-250*C. AND AUTOGENOUS PRESSURE DURING SAID REACTION; AND SEPARATING FROM SAID REACTION MIXTURE RSNX3.
Claim 2
Independent Claim
81 words
THE METHOD OF PREPARING ORGANOTIN COMPOUNDS RSNX3 BY THE REACTION SNX2+RX$RSNX3 WHEREIN R IS A HYDROCARBON GROUP, SN IS TIN, AND X IS AN ACTIVE HALOGEN WHICH COMPRISES REACTING ANHYDROUS SNX2 WITH RX IN THE PRESENCE OF AN AMINE CATALYST IN A REACTION MIXTURE THEREBY FORMING RSNX3; MAINTAINING SUBSTANTIALLY EQUIVALENT AMOUNTS OF SNX2 AND RX IN SAID REACTION MIXTURE DURING SAID REACTION; MAINTAINING SAID REACTION MIXTURE AT 100*-250*C. AND AUTOGENOUS PRESSURE DURING SAID REACTION; AND SEPARATING FROM SAID REACTION MIXTURE RSNX3.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |