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:
Jul. 30, 2007
Filed:
May. 24, 2004
Tammo Boinowitz, Essen, DE;
Eberhard Esselborn, Essen, DE;
Arno Knebelkamp, Mühlheim, DE;
Christian Psiorz, Düsseldorf, DE;
Stefan Silber, Krefeld, DE;
Stefan Stadtmüller, Essen, DE;
Ellen Wallhorn, Bochum, DE;
Tammo Boinowitz, Essen, DE;
Eberhard Esselborn, Essen, DE;
Arno Knebelkamp, Mühlheim, DE;
Christian Psiorz, Düsseldorf, DE;
Stefan Silber, Krefeld, DE;
Stefan Stadtmüller, Essen, DE;
Ellen Wallhorn, Bochum, DE;
Goldschmidt GmbH, Essen, DE;
Abstract
The invention relates to phosphoric esters of the general formula Iwhere X is 1 or 2; n is from 2 to 18; m and o are each from 2 to 100; k is from 2 to 4; R″ is H or a linear or branched alkyl radical; and R' is an alkyl, alkaryl, alkenyl, or sulfopropyl radical, and to there use as dispersants for pigments and fillers in aqueous or organic media.