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:
Nov. 30, 2010
Filed:
Feb. 24, 2006
Alexander Kraus, Evenhausen, DE;
Harald Grassl, Schönau, DE;
Angelika Hartl, Tacherting, DE;
Martina Brandl, Traunstein, DE;
Alexander Kraus, Evenhausen, DE;
Harald Grassl, Schönau, DE;
Angelika Hartl, Tacherting, DE;
Martina Brandl, Traunstein, DE;
Construction Research & Technology GmbH, Trostberg, DE;
Abstract
Copolymers which are obtained by free radical copolymerization of a vinylic poly(alkylene oxide) compound (A) with an ethylenically unsaturated monomer compound (B), and the use thereof as dispersants for aqueous solid suspensions, in particular hydraulic binders based on cement, lime, gypsum and anhydrite, are described. With very good water reduction power, the copolymers according to the invention scarcely retard the hardening of the concrete and ensure long processability of the concrete.