US3271465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of chloroalkylated benzenes and alkylsubstituted benzenes
Assignee: Union Oil Company of California
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Filing: 1962-11-30
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Granted: 1966-09-06
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 William A Krewer
- 👤 George W Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:38
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
THE PROCESS OF PREPARING CHLOROALKYLATED DERIVATIVES OF A MEMBER OF THE GROUP CONSISTING OF BENZENE, TOLUENE, O-XYLENE, M-XYLENE, P-XYLENE, ETHYLBENZENE FRACTIONS FROM THE ALKYLATION OF BENZENE WITH PROPYLENE TETRAMER AND SOLVENT EXTRACTS OBTAINED IN THE SOLVENT EXTRACTION OF MINERAL LUBRICATING OILS WITH A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS, WHICH COMPRISES HEATING AT LEAST ONE OF SAID MEMBERS WITH AN ALKANAL OF THE GROUP CONSISTING OF FORMALDEHYDE, PARALDEHYDE, PARAFORMALDEHYDE, S-TRIOXANE, ACETALDEHYDE, BUTYRALDEHYDE, CHLOROACETALDEHYDE, PROPIONALDEHYDE, AND MIXTURES THEREOF, IN THE PRESENCE OF A HYDROHALIDE OF THE GROUP CONSISTING OF HYDROGEN CHLORIDE, HYDROGEN IODIDE AND HYDROGEN BROMIDE, AND A SULFUR-CHLORINE COMPOUND OF THE GROUP CONSISTING OF SULFUR MONOCHLORIDE, SULFUR DICHLORIDE, THIONYL CHLORIDE AND SULFURYL CHLORIDE, UNDER ESSENTIALLY ANHYDROUS CONDITIONS AND AT A TEMPERATURE OF ABOUT 50* TO 150*C. THE REACTION MIXTURE CONTAINING ABOUT 0.5 MOLE OF SAID SULFUR-CHLORINE COMPOUND PER MOLE OF SAID MEMBER AND PER MONOMER UNIT OF SAID ALKANAL, AND RECOVERING SAID CHLOROALKYLATED DERIVATIVES THEREFROM.
Claim 2
Dependent Claim
154 words
THE PROCESS OF PREPARING CHLOROALKYLATED DERIVATIVES OF A MEMBER OF THE GROUP CONSISTING OF BENZENE, TOLUENE, O-XYLENE, M-XYLENE, P-XYLENE, ETHYLBENZENE FRACTIONS FROM THE ALKYLATION OF BENZENE WITH PROPYLENE TETRAMER AND SOLVENT EXTRACTS OBTAINED IN THE SOLVENT EXTRACTION OF MINERAL LUBRICATING OILS WITH A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS, WHICH COMPRISES HEATING AT LEAST ONE OF SAID MEMBERS WITH AN ALKANAL OF THE GROUP CONSISTING OF FORMALDEHYDE, PARALDEHYDE, PARAFORMALDEHYDE, S-TRIOXANE, ACETALDEHYDE, BUTYRALDEHYDE, CHLOROACETALDEHYDE, PROPIONALDEHYDE, AND MIXTURES THEREOF, IN THE PRESENCE OF A HYDROHALIDE OF THE GROUP CONSISTING OF HYDROGEN CHLORIDE, HYDROGEN IODIDE AND HYDROGEN BROMIDE, AND A SULFUR-CHLORINE COMPOUND OF THE GROUP CONSISTING OF SULFUR MONOCHLORIDE, SULFUR DICHLORIDE, THIONYL CHLORIDE AND SULFURYL CHLORIDE, UNDER ESSENTIALLY ANHYDROUS CONDITIONS AND AT A TEMPERATURE OF ABOUT 50* TO 150*C. THE REACTION MIXTURE CONTAINING ABOUT 0.5 MOLE OF SAID SULFUR-CHLORINE COMPOUND PER MOLE OF SAID MEMBER AND PER MONOMER UNIT OF SAID ALKANAL, AND RECOVERING SAID CHLOROALKYLATED DERIVATIVES THEREFROM.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |