Aqueous dispersion, method for preparation the same and using of it, composition containing sizing agent and using of it

摘要

The invention relates to an aqueous dispersion containing a dispersant and a disperse phase containing a hy-drophobic material, the dispersant comprising an anionic compound having a molecular weight less than 50000 and being selected from carbon-containing compounds and silicon-containing compounds, and a cati-onic organic compound having a molecular weight less than 50000. The invention further relates to the preparation and use of the dispersion in the production of paper. The invention also relates to a substantially water-free composition containing a hydrophobic material, an anionic compound having a molecular weight less than 50000 and being selected from carbon-containing compounds and silicon-containing compounds, and a cationic organic compound having a molecular weight less than 50000, as well as its use in the prepa-ration of an aqueous dispersion.