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:
Sep. 25, 1990
Filed:
Nov. 14, 1988
Applicant:
Inventors:
Margaret B Parnell, Livermore, CA (US);
Thomas L Ashcraft, Jr, Baytown, TX (US);
Kenneth M Webber, Houston, TX (US);
Assignee:
Exxon Production Research Company, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562 74 ;
Abstract
A process for manufacturing monosulfonated alkylphenol polyalkylene oxide sulfonates is disclosed. The process produces the monosulfonated alkylphenol polyalkylene oxide sulfonates by a combination of sulfonation to produce a sulfate/sulfonate dianion, followed by a displacement of the sulfate to produce a disulfonate. The process produces a commercially viable disulfonate, which has a wide variety of commercial uses.
Parnell, Margaret. (1990). Process for manufacturing disulfonate surfactants (U.S. Patent No. 4959490). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4959490
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile