The subject of the present invention is a gypsum containing aqueous slurry containing a phosphate based polycondensate as sole agent with dispersing properties. With a phosphated polycondensate according to the invention as sole dispersing component an improved efficiency was found in comparison with the polycondensates known in the prior art. As additional favorable effect a significantly decreased retardation of the setting and hardening of the various construction compositions and especially of gypsum based slurries compared to other dispersants is to be observed, independently from the dosage of the dispersing component. This effect of the polycondensate component as well as an expedient influence on the pore structure surprisingly can be observed.
申请公布号
WO2012049077(A3)
申请公布日期
2012.11.22
申请号
WO2011EP67523
申请日期
2011.10.07
申请人
BASF CONSTRUCTION POLYMERS GMBH;DIERSCHKE, FRANK;PROSIEGEL, KLAUS;SCHINABECK, MICHAEL
发明人
DIERSCHKE, FRANK;PROSIEGEL, KLAUS;SCHINABECK, MICHAEL