Patent US2849501A successfully refreshed from Google Patents.
US2849501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making chloromesitylene
Assignee: Dow Chemical Co
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Filing: 1957-03-18
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Granted: 1958-08-26
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Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Frank H Bolton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:41
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07C17/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR MAKING MONO- AND DICHLOROMESITYLENES WHICH COMPRISES REACTING CHLORINE WITH A MIXTURE OF AROMATIC HYDROCARBONS HAVING NINE CARBON ATOMS IN THE MOLECULE AND SUBSTANTIALLY FREE OF UNSATURATED SIDE CHAINS AND BOILING AT TEMPERATURES BETWEEN 155* AND 200*C. AT ATMOSPHERIC PRESSURE AND CONTAINING AT LEAST 5 PERCENT BY WEIGHT OF MESITYLENE BY INTRODUCING CHLORINE INTO ADMIXTURE WITH THE LIQUID AROMATIC HYDROCARBONS IN AMOUNT CORRESPONDING TO FROM 0.75 TO 1.5 GRAM MOLECULAR PROPORTION OF THE CHLORINE PER GRAM MOLEUCLAR PROPORTION OF THE MESITYLENE SUBSTANTIALLY WITHOUT EXPOSURE OF THE MIXTURE TO ACTINIC RADIATION AND AT REACTION TEMPERATURES BETWEEN -10* AND 110*C. AND SEPARATING THE CHLORINATED MESITYLENES FROM THE UNCHLORINATED AROMATIC HYDROCARBONS.
Claim 2
Dependent Claim
110 words
A PROCESS FOR MAKING MONO- AND DICHLOROMESITYLENES WHICH COMPRISES REACTING CHLORINE WITH A MIXTURE OF AROMATIC HYDROCARBONS HAVING NINE CARBON ATOMS IN THE MOLECULE AND SUBSTANTIALLY FREE OF UNSATURATED SIDE CHAINS AND BOILING AT TEMPERATURES BETWEEN 155* AND 200*C. AT ATMOSPHERIC PRESSURE AND CONTAINING AT LEAST 5 PERCENT BY WEIGHT OF MESITYLENE BY INTRODUCING CHLORINE INTO ADMIXTURE WITH THE LIQUID AROMATIC HYDROCARBONS IN AMOUNT CORRESPONDING TO FROM 0.75 TO 1.5 GRAM MOLECULAR PROPORTION OF THE CHLORINE PER GRAM MOLEUCLAR PROPORTION OF THE MESITYLENE SUBSTANTIALLY WITHOUT EXPOSURE OF THE MIXTURE TO ACTINIC RADIATION AND AT REACTION TEMPERATURES BETWEEN -10* AND 110*C. AND SEPARATING THE CHLORINATED MESITYLENES FROM THE UNCHLORINATED AROMATIC HYDROCARBONS.
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |