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. 20, 2011
Filed:
Nov. 06, 2006
Stefan Becker, Mannheim, DE;
Markus Klumpe, Mannheim, DE;
Joachim Pakusch, Speyer, DE;
Thomas Goetz, Leimersheim, DE;
Christian Knoll, Neuhofen, DE;
Rolf Gulden, Frankenthal, DE;
Stefan Becker, Mannheim, DE;
Markus Klumpe, Mannheim, DE;
Joachim Pakusch, Speyer, DE;
Thomas Goetz, Leimersheim, DE;
Christian Knoll, Neuhofen, DE;
Rolf Gulden, Frankenthal, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The present invention relates to novel comb polymers which bear poly-C-C-alkylene ether side chains A and functional groups B which at a pH of >12 are present in the form of anionic groups on a carbon backbone and also the salts of such comb polymers. The invention also relates to the use of these comb polymers as additives in preparations comprising a mineral binder. The polyalkylene ether side chains A have the following formula:*—U—(C(O))—X-(Alk-O)—Y—Z  A.