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. 03, 1996
Filed:
Dec. 05, 1995
Applicant:
Inventor:
Michael L Braden, Sugar Land, TX (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 73 ; 526 81 ; 526 86 ; 5262191 ; 5262195 ; 526307 ; 5263076 ; 526312 ; 210705 ; 210708 ; 210735 ;
Abstract
The invention comprise a composition for breaking oil-in-water emulsions comprising adding from about 1 part per million to about 500 parts per million of an amphoteric acrylic acid copolymer to the emulsion. Once the copolymer is added, the emulsion is subjected to agitation until the oil-in-water emulsion is resolved and the oil and water separates into two phases. The oil and water phases are then subjected to a separation technique to separate the phases. The invention further comprises a method of synthesizing the amphoteric polymers used in the emulsion breaking application.