Flow improving agents for binder suspensions containing cement
AssigneeSKW Trostberg Aktiengesellschaft
InventorsKonrad Wutz, Alfred Kern, Josef Weichmann
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Abstract
Flow improving agents for binder suspensions containing cement are described, which consist of: a) Graft polymers which have been prepared by radical grafting of a polyalkylene oxide of the general formula (I) with an ethylenically unsaturated mono- or dicarboxylic acid or the anhydride thereof, and then by derivatizing with a primary or secondary amine and/or alcohol, and also of b) Casein. These flow improving agents have the advantage that the ability to flow is considerably improved in comparison, for example, with casein alone, and the improved ability to flow is preserved over a longer period of time.
Claims27
A flow improving agent for a binder suspension containing cement comprising:
- a) a graft polymer which has been prepared by radical grafting of a polyalkylene oxide of the general formula (I) ##STR4## with an ethylenically unsaturated mono- or dicarboxylic acid or its anhydride, followed by derivatization with a primary or secondary amine and/or alcohol to form an amide and/or ester, respectively, and
- b) casein.
Dependencies are inferred from the claim text.