| abstract |
The object of the invention is the use as a dispersing agent, for the purpose of dispersing in water precipitated calcium carbonate (PCC) -based minerals, of a combination of: - at least one homopolymer and / or at least one copolymer of (meth) acrylic acid, and / or at least one phosphate compound, and / or at least one cationic polymer, and at least one ion-bearing compound Another object of the invention resides in the aqueous suspensions of PCC-containing mineral matter thus obtained, and in the dry pigments obtained by drying said suspensions. A final object of the invention resides in the use of the suspensions and dry pigments mentioned above in the manufacture of paper, and in particular in the formulation of papermaking coatings and in the manufacture of paper sheets, in the manufacture of paints, plastics and rubbers. |