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:
Oct. 07, 2008
Filed:
Jun. 23, 2005
Maria B. Manek, Stafford, TX (US);
Michael J. Howdeshell, Sugar Land, TX (US);
Kirk E. Wells, Sugar Land, TX (US);
Hester A. Clever, Houston, TX (US);
William K. Stephenson, Sugar Land, TX (US);
Maria B. Manek, Stafford, TX (US);
Michael J. Howdeshell, Sugar Land, TX (US);
Kirk E. Wells, Sugar Land, TX (US);
Hester A. Clever, Houston, TX (US);
William K. Stephenson, Sugar Land, TX (US);
Nalco Company, Naperville, IL (US);
Abstract
A method of clarifying oily waste water comprising adding to the waste water an effective clarifying amount of one or more demulsifiers selected from the group consisting of dendritic polyamines, dendritic polyamidoamines and hyperbranched polyethyleneimines and the reaction products thereof with gluconolactone, alkylene oxides, salts of 3-chloro-2-hydroxypropanesulfonic acid, alkyl halides, benzyl halides and dialkyl sulfates.