The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 1979
Filed:
Apr. 12, 1978
Applicant:
Inventors:
Assignee:
Ato Chimie, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07B / ; C07C / ;
U.S. Cl.
CPC ...
2605 / ; 2605 / ;
Abstract
A process for separating sulphonic acids from a paraffin sulphonic acid solution containing in addition to the paraffin sulphonic acids, sulphonic acid, water and optionally non-sulphonated paraffins by mixing the solution with a slightly polar solvent having solubility in water of less than 7 percent to form an aqueous phase and an organic phase, separating the phases, neutralizing the organic phase and recovering the paraffin sulphonic acids from the neutralized organic phase.
Boy, Aristide. (1979). Process for preparing sulphonic acids and sulphonates (U.S. Patent No. 4178307). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4178307
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile