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:
Aug. 04, 2009
Filed:
Jun. 19, 2004
Dirk Leinweber, Schwalbach, DE;
Michael Feustel, Koengernheim, DE;
Elisabeth Wasmund, Burgkirchen, DE;
Heidi Rausch, Garching/Alz, DE;
Dirk Leinweber, Schwalbach, DE;
Michael Feustel, Koengernheim, DE;
Elisabeth Wasmund, Burgkirchen, DE;
Heidi Rausch, Garching/Alz, DE;
Clariant Produkte (Deutschland) GmbH, Sulzbach, DE;
Abstract
Disclosed is the use of alkoxylated dendrimers for breaking oil/water emulsions. The alkoxylated dendrimers have a molecular weight of from 2400 to 100 000 g/mol and have been alkoxylated with C-C-alkylene oxide groups or a mixture of such alkylene oxide groups such that the alkoxylated dendrimer has a degree of alkoxylation of from 1 to 100 alkylene oxide units per free OH group. The alkoxylated dendrimers are added to the oil/water emulsions in amounts of from 0.0001 to 5% by weight, based on the oil content of the emulsion to be demulsified.