US3270066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted polyhalocyclopentadienes and processes for their production
Assignee: Bayer AG
•
Filing: 1960-09-20
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Granted: 1966-08-30
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Expires: 1980-09-20
Abstract
No abstract record available.
Inventors
- 👤 Brachel Hanswilli Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:37
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/263; C07C17/2635; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/16; C07F9/165; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4021; C07F9/547; C07F9/6527; C07F9/6533; C07C2601/00; C07C2601/06; C07C2601/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE PRODUCTION OF A LOWER-ALKYL-SUBSTITUTED PENTACHLOROCYLOPENTADIENE TOGETHER WITH A DIALKYL PHOSPHATE WHICH COMPRISES REACTING TOGETHER HEXACHLOROCYCLOPENTADIENE AND A TRIS (LOW ALKYL) PHOSPHITE IN APPROXIMATELY EQUIMOLECULAR PROPORTIONS AND SUBSEQUENTLY HYDROYZING THE RESULTING REACTION MIXTURE BY HEATING THE SAME WITH AN EXCESS OF WATER AT A TEMPERATURE NOT IN EXCESS OF 150*C. FOR SUCH A PERIOD AS TO CONVERT THE DIALKYL PHOSPHORYL CHLORIDE IN THE REACTION MIXTURE INTO A DIALKYL PHOSPHATE, SEPARATING THE ORGANIC PHASE AND RECOVERING BOTH THE DIALKYL PHOSPHATE AND THE LOWER-ALKYL-SUBSTITUTED PENTACHLOROCYCLOPENTADIENE.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE PRODUCTION OF A LOWER-ALKYL-SUBSTITUTED PENTACHLOROCYLOPENTADIENE TOGETHER WITH A DIALKYL PHOSPHATE WHICH COMPRISES REACTING TOGETHER HEXACHLOROCYCLOPENTADIENE AND A TRIS (LOW ALKYL) PHOSPHITE IN APPROXIMATELY EQUIMOLECULAR PROPORTIONS AND SUBSEQUENTLY HYDROYZING THE RESULTING REACTION MIXTURE BY HEATING THE SAME WITH AN EXCESS OF WATER AT A TEMPERATURE NOT IN EXCESS OF 150*C. FOR SUCH A PERIOD AS TO CONVERT THE DIALKYL PHOSPHORYL CHLORIDE IN THE REACTION MIXTURE INTO A DIALKYL PHOSPHATE, SEPARATING THE ORGANIC PHASE AND RECOVERING BOTH THE DIALKYL PHOSPHATE AND THE LOWER-ALKYL-SUBSTITUTED PENTACHLOROCYCLOPENTADIENE.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |