TOOTHPASTE Russian patent published in 1998 - IPC

FIELD: stomatology, in particular, toothpastes. SUBSTANCE: toothpaste contains as an abrasive, chalk, and as a cross-linking agent, it uses silicon dioxide. Toothpaste also has polyhydric alcohol, specific additives and water. Chalk used in toothpaste is capable to peptization in aqueous solution of polyhydric alcohol with concentration of 30 mas.% and with forming a layer which porosity is 0.45-0.65 at limit filling of volume with liquid phase of chalk. Silicon dioxide is produced from silicates solution. All components are taken in determined ratio. EFFECT: higher thixotropic action. 3 cl