VISCOSITY MODIFIER FOR HIGH CONCENTRATION DISPERSION OF INORGANIC FINE PARTICLES AND HIGH CONCENTRATION DISPERSION OF INORGANIC FINE PARTICLES WHICH CONTAINS THE SAME

摘要

The present invention is directed to modifying the functionality of a high concentration dispersion of inorganic microparticles (e.g., a printing ink composition, a functional paste composition or a paint composition of a high concentration dispersion of inorganic fine particles) to obtain excellent viscosities, The present invention provides a viscosity modifier for a highly concentrated dispersion of inorganic fine particles capable of reducing inconveniences incurred in a printing step or a coating step for providing a highly concentrated dispersion of inorganic fine particles containing the viscosity modifier. Wherein the viscosity modifier comprises a reaction product having as main components 2 to 20 phosphate groups or carboxyl groups in the molecular structure and the reaction product is a 3: 1 to 1: 1 hydroxyl group to phosphate group-introduced material or a carboxyl group-introduced material Is produced from the reaction between a polyol having 2 to 6 hydroxyl groups in a molar ratio and a phosphoric acid-introducing material or a carboxyl-conducting material.