US3274227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trihalomethylation of polarized double bonds
Assignee: Union Carbide Corp
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Filing: 1962-06-12
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Granted: 1966-09-20
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Heinz G Viehe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:14
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/28; C07C35/00; C07C35/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD FOR TRIHALOMETHYLATION OF AN ORGANIC COMPOUND HAVING AT LEAST ONE POLARIZED DOUBLE BOND, SAID ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBYL ALDEHYDES AND KETONES, METHYL AND ETHYL ESTERS OF A,B-UNSATURATED HYDROCARBYL CARBOXYLIC ACIDS, AND A,B-UNSATURATED HYDROCARBYL NITRILES WHICH COMPRISES CONTACTING A TRIHALOMETHANE SELECTED FROM THE GROUP CONSISTING OF TRICHLOROMETHANE, TRIBROMOMETHANE AND TRIIODOMETHANE WITHSAID ORGANIC COMPOUND IN LIQUID AMMOMIA AT A TEMPERATURE BELOW ABOUT -10*C. AND IN THE PRESENCE OF A STRONG BASE IN AN AMOUNT RANGING FROM ABOUT 0.01 MOLE TO ABOUT 2 MOLES OF SAID STRONG BASE PER MOLE OF TRIHALOMETHANE.
Claim 2
Independent Claim
97 words
A METHOD FOR TRIHALOMETHYLATION OF AN ORGANIC COMPOUND HAVING AT LEAST ONE POLARIZED DOUBLE BOND, SAID ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBYL ALDEHYDES AND KETONES, METHYL AND ETHYL ESTERS OF A,B-UNSATURATED HYDROCARBYL CARBOXYLIC ACIDS, AND A,B-UNSATURATED HYDROCARBYL NITRILES WHICH COMPRISES CONTACTING A TRIHALOMETHANE SELECTED FROM THE GROUP CONSISTING OF TRICHLOROMETHANE, TRIBROMOMETHANE AND TRIIODOMETHANE WITHSAID ORGANIC COMPOUND IN LIQUID AMMOMIA AT A TEMPERATURE BELOW ABOUT -10*C. AND IN THE PRESENCE OF A STRONG BASE IN AN AMOUNT RANGING FROM ABOUT 0.01 MOLE TO ABOUT 2 MOLES OF SAID STRONG BASE PER MOLE OF TRIHALOMETHANE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |