Method for improving rheological properties of an aqueous pigment slurry and a dispersion agent
AssigneeKemira Oyj
InventorsEsko Aarni, Perttu Heiska, Kimmo Huhtala
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Abstract
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 alot 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.
Claims10
A method for improving rheological properties of an aqueous pigment slurry,
- comprising adding a dispersion agent 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 comprising styrene acrylate copolymer.
A dispersion agent for a pigment slurry comprising
- a first component comprising styrene acrylate copolymer,
- a second component comprising conventional dispersion agent.
(canceled)
Dependencies are inferred from the claim text.