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:
Mar. 29, 1977
Filed:
Sep. 30, 1974
Applicant:
Inventors:
James H Fullinwider, Englewood, CO (US);
Bruce L Knight, Findlay, OH (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252 / ; 1663 / ; 252330 ;
Abstract
Oil and water emulsions containing a high molecular weight polymer (e.g. a partially hydrolyzed polyacrylamide) and a surfactant (e.g. monovalent cation-containing petroleum sulfonate) are broken with a de-emulsifying agent made up of a divalent cation-containing salt, e.g. CaCl.sub.2, and a strong oxidizing or reducing agent, e.g. sodium hypochlorite or hydrazine.
Fullinwider, James. (1977). Process for breaking polymer-containing emulsions (U.S. Patent No. 4014801). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4014801
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile