| abstract |
(57) [Abstract] [Purpose] High concentration (60% by weight or more) of inorganic and / or filler and / or low viscosity and excellent storage stability. Alternatively, an aqueous suspension of pigment is provided. [Structure] The substance to be dispersed (one or more components selected from the group consisting of an inorganic substance, a filler and a pigment) has a solid content of 6 One or more components selected from the group consisting of a dispersant (amphoteric anion polyelectrolyte, amphoteric polyelectrolyte and amphoteric cation polyelectrolyte) having 0% by weight or more and having a neutral or positive electric charge to the outside. ) Has a weight average molecular weight of 60,000 to 200 000, except for the polyelectrolyte having an aziridine group, which is an aqueous suspension for the paper industry containing a substance to be dispersed and a dispersant. |