US2843634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of alkylating
Assignee: Lubrizol Corp
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Filing: 1954-03-10
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Granted: 1958-07-15
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Expires: 1974-03-10
Abstract
No abstract record available.
Inventors
- 👤 Carl F Prutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:52
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/18; C07C41/00; C07C41/01; C07C41/18; C07C41/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A PROCESS OF PREPARING ALKYLATED AROMATIC COMPOUNDS WHICH COMPRISES THE REACTION OF (A) A CHLORINATED SATURATED ALIPHATIC HYDROCARBONS WITH (B) AN AROMATIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF PHENYL ETHERS, PHENYL ESTERS AND PHENOLS, SAID PROCESS BEISNG CARRIED OUT AT ATMOSPHERIC PRESSURE, AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 70*C. TO ABOUT 250*C., FOR A PERIOD OF TIME OF ABOUT ONE HOUR TO ABOUT SIX HOURS, IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF THE COMBINATION OF ACID ACTIVATED CLAY AND ZINC CHLORIDE, THE CONCENTRATION OF SAID ZINIC CHLORIDE BEING WITHIN THE RANGE OF ABOUT 5% TO ABOUT 50% BY WEIGHT OF SAID ACID ACTIVATED CLAY, SAID PROCESS BEING FREE FROM THE PRESENCE OF ALUMINUM CHLORIDE AND FERRIC CHLORIDE.
Claim 2
Dependent Claim
122 words
A PROCESS OF PREPARING ALKYLATED AROMATIC COMPOUNDS WHICH COMPRISES THE REACTION OF (A) A CHLORINATED SATURATED ALIPHATIC HYDROCARBONS WITH (B) AN AROMATIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF PHENYL ETHERS, PHENYL ESTERS AND PHENOLS, SAID PROCESS BEISNG CARRIED OUT AT ATMOSPHERIC PRESSURE, AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 70*C. TO ABOUT 250*C., FOR A PERIOD OF TIME OF ABOUT ONE HOUR TO ABOUT SIX HOURS, IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF THE COMBINATION OF ACID ACTIVATED CLAY AND ZINC CHLORIDE, THE CONCENTRATION OF SAID ZINIC CHLORIDE BEING WITHIN THE RANGE OF ABOUT 5% TO ABOUT 50% BY WEIGHT OF SAID ACID ACTIVATED CLAY, SAID PROCESS BEING FREE FROM THE PRESENCE OF ALUMINUM CHLORIDE AND FERRIC CHLORIDE.
Claim 3
Dependent Claim
85 words
A PROCESS OF ALKYLATION COMPRISING THE STEP OF CONTACTING MONO-CHLOR PARAFFIN WAX WITH DIPHENYL ETHER AT A TEMPERATURE BETWEEN 150*C. TO ABOUT 250*C. FOR ABOUT 1 HOUR TO ABOUT 6 HOURS IN THE PRESENCE OF THE CATALYST CONSISTING ESSENTIALLY OF THE COMBINATION OF ACID ACTIVATED CLAY AND ZINC CHLORIDE,S THE CONCENTRATION OF SAID ZINC CHLORIDE BEING IN THE RANGE OF ABOUT 5% TO ABOUT 50% BY WEIGHT OF SAID ACID ACTIVATED CLAY, SAID PROCESS BEING FREE FROM THE PRESENCE OF ALUMINUM CHLORIDE AND FERRIC CHLORIDE.
Claim 4
Dependent Claim
85 words
A PROCESS OF ALKYLATION COMPRISING THE STEP OF CONTACTING MONO-CHLOR PARAFFIN WAX WITH DIPHENYL ETHER AT A TEMPERATURE BETWEEN 150*C. TO ABOUT 250*C. FOR ABOUT 1 HOUR TO ABOUT 6 HOURS IN THE PRESENCE OF THE CATALYST CONSISTING ESSENTIALLY OF THE COMBINATION OF ACID ACTIVATED CLAY AND ZINC CHLORIDE,S THE CONCENTRATION OF SAID ZINC CHLORIDE BEING IN THE RANGE OF ABOUT 5% TO ABOUT 50% BY WEIGHT OF SAID ACID ACTIVATED CLAY, SAID PROCESS BEING FREE FROM THE PRESENCE OF ALUMINUM CHLORIDE AND FERRIC CHLORIDE.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |