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:
Jun. 24, 1980
Filed:
Jan. 06, 1978
Applicant:
Inventors:
Abraham A Zimmerman, Summit, NJ (US);
Jack Ryer, East Brunswick, NJ (US);
Assignee:
Exxon Research & Engineering Co., Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
252344 ; 44 51 ; 44 62 ; 252358 ;
Abstract
A multicomponent demulsifier comprising an alkoxylated substituted-phenol-formaldehyde resin and at least two different alkoxylated polyamines or a quaternary ammonium salt and an alkoxylated polyamine. The demulsifier is useful in breaking hydrocarbon-in-water or water-in-hydrocarbon emulsions including those comprising a substituted hydrocarbon. Moreover, when the alkoxylated polyamines are used, rather than the quaternary ammonium salt, the multicomponent demulsifier retains reasonable effectiveness even after a first water phase has been separated.