THIXOTROPY IMPARTING AGENT

摘要

A thixotropy imparting agent composed of chain clay mineral particles, characterized in that it exhibits a thixotropy index (TI) of 4.0 or more in a dispersion wherein a dispersant is diethyl hexyl phthalate (DOP) and chain clay mineral particles have a concentration of 7 wt % and the index of 3.0 or more in a dispersion wherein a dispersant is water and chain clay mineral particles has a concentration of 3 wt %, has a bulk density of 0.125 g/ml or less and a secondary particle size distribution wherein particles having a particle diameter of more than 1.0 mum and not more than 30 mum account for 70 wt % or more thereof and those having a particle diameter of 1.0 mum or less account for the range of 5 to 30 wt % thereof, as measured by the laser method.