METHOD FOR IMPROVING RHEOLOGICAL PROPERTIES OF AN AQUEOUS PIGMENT SLURRY, DISPERSION AGENT AND ITS USE

The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent com...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HEISKA, PERTTU, HUHTALA, KIMMO, AARNI, ESKO
Format: Patent
Sprache:eng ; pol
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Beschreibung
Zusammenfassung:The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention also relates to a dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.