Use of a precipitated silica of high structure and dispersible thickener or texturing agent in dentifrice compositions.

摘要

Use, as a thickener or texturing agent in toothpaste compositions, of a precipitated silica having or pH 3, 5 to 9, preferably from 4 to 9 and most particularly from 5 to 8 or a DOP oil absorption above 200 mL / g, preferably greater than 230 ml / g and most particularly greater than 250 ml / gu a surface area CTAB from 70 to 250 m2 / g, preferably 100 to 200 m2 / gu an average diameter, determined by laser diffraction without ultrasound, of 20 ìm to 600 ìm, preferably 25 ìm to 600 ìm or a median diameter after ultrasound-mediated disintegration of 40 ìm maximum, preferably of 35 ìm maximum or a residual anion content, expressed as sulfate sodium, less than 5% by weight, preferably less than 3% by weight.