NOUVELLES ARGILES MODIFIEES,LEUR PROCEDE DE PREPARATION ET COMPOSITIONS THERAPEUTIQUES A BASE DE CES ARGILES

摘要

This invention relates to modified clays comprising a sheet-silicate clay with a plate separation of from 1.5 to 1.6 nm, with a neutralizing power of from 170 to 1200 mEq per 100 g combined with 0.05 to 0.5 part in weight of magnesium hydroxide per part of clay, and acidic addition products of the same. The invention relates also to a preparation process of these clays, consisting in treating at a temperature between 50 DEG C. and about 140 DEG C., possibly under pressure, one part of an appropriate sheet-silicate clay by 0.05 to 0.5 part of magnesium hydroxide for about 3 hours to about 24 hours. The invention relates finally to therapeutic composition of matter comprising as an essential ingredient therein, a sufficient amount of these modified clays.