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US3326971A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of preparing alkyl aryl sulfonates having improved water solubility and foam properties

Assignee: Atlantic Richfield Co
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Filing: 1964-09-03
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Granted: 1967-06-20
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Expires: 1984-09-03
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Abstract

No abstract record available.

Inventors

  • 👤 William K Griesinger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:52
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/28; C07C309/29; C07C309/30; C07C309/31; C07C2/00; C07C2/86; C07C2/861; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 364 words
THE METHOD OF PRODUCING AN ALKYLBENZENE SULFONATE OF IMPROVED WATER SOLUBILITY HAVING FROM 10 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND AN ALKYLBENZENE SULFONATE OF IMPROVED FOAM PROPERTIES HAVING FROM 12 TO 14 CARBON ATOMS IN THE ALKYL GROUP WHICH COMPRISES (1) SEPARATELY MONOCHLORINATING A STRAIGHT CHAIN C10C11 PARAFFINIC HYDROCARBON FRACTION TO PRODUCE THE STRAIGHT CHAIN C10-C11 ALKYL MONOCHLORIDES, A STRAIGHT CHAIN C12 PARAFFIN TO PRODUCE THE STRAIGHT CHAIN C12 ALKYL MONOCHLORIDES, AND A STRAIGHT CHAIN C13-C14 PARAFFINIC HYDROCARBON FRACTION TO PRODUCE THE STRAIGHT CHAIN C13-C14 ALKYL MONOCHLORIDES, (2) ALKYLATING BENZENE EMPLOYING AN ALUMINUM CHLORIDE CATAYST WITH EACH OF THE SEPARATE ALKYL MONOCHLORIDE FRACTIONS PRODUCED IN (1) TO PRODUCE, RESPECTIVELY, A MONOALKYLBENZENE FRACTION HAVING FROM 10 TO 11 CARBON ATOMS IN THE ALKYL GROUP, A MONOALKYLBENZENE FRACTION HAVING 12 CARBON ATOMS IN THE ALKYL GROUP AND A MONOALKYLBENZENE FRACTION HAVING FROM 13 TO 14 CARBON ATOMS IN THE ALKYL GROUP, (3) FRACTIONATING THE MONOALKYLBENZENE FRACTION HAVING 12 CARBON ATOMS IN THE ALKYL GROUP PRODUCED IN (2) TO PRODUCE A LOWER BOILING OVERHEAD FRACTION CHARACTERIZED BY HAVING A LOW 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT AND A HIGHER BOILING BOTTOMS FRACTION CHARACTERIZED BY HAVING A HIGH 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT, (4) ADDING SAID BOTTOMS FRACTION FROM (3) TO SAID MONALKYLBENZENE FRACTION HAVING FROM 10 TO 11 CARBON ATOMS IN THE ALKYL GROUP FROM (2) TO PRODUCE A MONOALKYLBENZENE FRACTION HAVING FROM 10 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING AN INCREASED 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT, (5) ADDING SAID OVERHEAD FRACTION FROM (3) TO SAID MONOALKYLBENZENE FRACTION HAVING FROM 13 TO 14 CARBON ATOMS IN THE ALKYL GROUP FROM (2) TO PRODUCE A MONOALKYLBENZENE FRACTION HAVING FROM 12 TO 14 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING A DECREASED 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT, (6) SEPARATELY SULFONATING THE MONOALKYLBENZENE FRACTIONS TO PRODUCE THE CORRESPONDING SULFONIC ACID FRACTIONS, AND (7) NEUTRALIZING THE SULFONIC ACID FRACTIONS TO PRODUCE A MONOALKYLBENZENE SULFONATE HAVING FROM 10 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING INCREASED WATER SOLUBILITY AND A MONOALKYLBENZENE SULFONATE HAVING FROM 12 TO 14 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING IMPROVED FOAM PROPERTIES.
Claim 2
Independent Claim 364 words
THE METHOD OF PRODUCING AN ALKYLBENZENE SULFONATE OF IMPROVED WATER SOLUBILITY HAVING FROM 10 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND AN ALKYLBENZENE SULFONATE OF IMPROVED FOAM PROPERTIES HAVING FROM 12 TO 14 CARBON ATOMS IN THE ALKYL GROUP WHICH COMPRISES (1) SEPARATELY MONOCHLORINATING A STRAIGHT CHAIN C10C11 PARAFFINIC HYDROCARBON FRACTION TO PRODUCE THE STRAIGHT CHAIN C10-C11 ALKYL MONOCHLORIDES, A STRAIGHT CHAIN C12 PARAFFIN TO PRODUCE THE STRAIGHT CHAIN C12 ALKYL MONOCHLORIDES, AND A STRAIGHT CHAIN C13-C14 PARAFFINIC HYDROCARBON FRACTION TO PRODUCE THE STRAIGHT CHAIN C13-C14 ALKYL MONOCHLORIDES, (2) ALKYLATING BENZENE EMPLOYING AN ALUMINUM CHLORIDE CATAYST WITH EACH OF THE SEPARATE ALKYL MONOCHLORIDE FRACTIONS PRODUCED IN (1) TO PRODUCE, RESPECTIVELY, A MONOALKYLBENZENE FRACTION HAVING FROM 10 TO 11 CARBON ATOMS IN THE ALKYL GROUP, A MONOALKYLBENZENE FRACTION HAVING 12 CARBON ATOMS IN THE ALKYL GROUP AND A MONOALKYLBENZENE FRACTION HAVING FROM 13 TO 14 CARBON ATOMS IN THE ALKYL GROUP, (3) FRACTIONATING THE MONOALKYLBENZENE FRACTION HAVING 12 CARBON ATOMS IN THE ALKYL GROUP PRODUCED IN (2) TO PRODUCE A LOWER BOILING OVERHEAD FRACTION CHARACTERIZED BY HAVING A LOW 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT AND A HIGHER BOILING BOTTOMS FRACTION CHARACTERIZED BY HAVING A HIGH 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT, (4) ADDING SAID BOTTOMS FRACTION FROM (3) TO SAID MONALKYLBENZENE FRACTION HAVING FROM 10 TO 11 CARBON ATOMS IN THE ALKYL GROUP FROM (2) TO PRODUCE A MONOALKYLBENZENE FRACTION HAVING FROM 10 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING AN INCREASED 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT, (5) ADDING SAID OVERHEAD FRACTION FROM (3) TO SAID MONOALKYLBENZENE FRACTION HAVING FROM 13 TO 14 CARBON ATOMS IN THE ALKYL GROUP FROM (2) TO PRODUCE A MONOALKYLBENZENE FRACTION HAVING FROM 12 TO 14 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING A DECREASED 2-PHENYL MONOALKYLBENZENE ISOMER CONTENT, (6) SEPARATELY SULFONATING THE MONOALKYLBENZENE FRACTIONS TO PRODUCE THE CORRESPONDING SULFONIC ACID FRACTIONS, AND (7) NEUTRALIZING THE SULFONIC ACID FRACTIONS TO PRODUCE A MONOALKYLBENZENE SULFONATE HAVING FROM 10 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING INCREASED WATER SOLUBILITY AND A MONOALKYLBENZENE SULFONATE HAVING FROM 12 TO 14 CARBON ATOMS IN THE ALKYL GROUP AND CHARACTERIZED BY HAVING IMPROVED FOAM PROPERTIES.

References Cited (Backward Citations)

US2220099A Cited
US3248413A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-06-19 1970-12-19 1971-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-06-19 1974-12-19 1975-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-06-19 1978-12-19 1979-06-20 $7700.00 Window Closed / Lapsed

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