US2946806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of pentachlorophenyl ethers of polyhydric alcohols
Assignee: Bayer AG
•
Filing: 1957-05-22
•
Granted: 1960-07-26
•
Expires: 1977-05-22
Abstract
No abstract record available.
Inventors
- 👤 Nentwig Joachim
- 👤 Schnell Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:17
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
3 words
2,2 - DIMETHYL-5-ETHYL-5-PENTACHLOROPHENOXYMETHYL1,3-DIOXANE.
Claim 2
Dependent Claim
3 words
2,2 - DIMETHYL-5-ETHYL-5-PENTACHLOROPHENOXYMETHYL1,3-DIOXANE.
Claim 3
Dependent Claim
88 words
MONOPENTACHLOROPHENYLETHERS FORMED BY REACTING AT TEMPERATURES FROM ABOUT 80*C. TO ABOUT 250 C. (1) A MEMBER SELECTED FROM THE GROUP CONSISTING OF ACETALS AND KETALS DERIVED FROM THE REACTION OF A TRIHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL, TRIMETHYLOL ETHANE, TRIMETHYLOLPROPANE AND TRIMETHYLOLBUTANE WITH A HYDROCARBON MONO-OXO COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, ACETALDEHYDE, BENZALDEHYDE, ACETONE, METHYLETHYLKETONE AND CYCLOHEXANONE, WITH (2) HEXACHLOROBENZENE AND (3) AN ACID BINDING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL OXIDES, HYDROXIDES AND CARBONATES.
Claim 4
Dependent Claim
88 words
MONOPENTACHLOROPHENYLETHERS FORMED BY REACTING AT TEMPERATURES FROM ABOUT 80*C. TO ABOUT 250 C. (1) A MEMBER SELECTED FROM THE GROUP CONSISTING OF ACETALS AND KETALS DERIVED FROM THE REACTION OF A TRIHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF GLYCEROL, TRIMETHYLOL ETHANE, TRIMETHYLOLPROPANE AND TRIMETHYLOLBUTANE WITH A HYDROCARBON MONO-OXO COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, ACETALDEHYDE, BENZALDEHYDE, ACETONE, METHYLETHYLKETONE AND CYCLOHEXANONE, WITH (2) HEXACHLOROBENZENE AND (3) AN ACID BINDING AGENT SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL OXIDES, HYDROXIDES AND CARBONATES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |