PREPARATION OF A VISUALLY CLEAR GEL DENTIFRICE.

摘要

Preparation of a visually clear gel dentifrice comprising a precipitated silica polishing agent having a refractive index of about 1.44, a water-swellable synthetic anionic polycarboxylate polymer which is added in solid form and a liquid vehicle comprising water and sorbitol wherein (a) when the total water content is above 30 percent to about 33 percent by weight of said dentifrice, sorbitol on a neat basis is present in amount of above 30 percent to about 36 percent by weight of said dentifrice, (b) when the total water content is about 27 percent up to below 30 percent by weight of said dentifrice, sorbitol on a neat basis is present in amount of about 20 percent up to below 30 percent by weight of said dentifrice and other humectant if present, is in neat amount of up to 15 percent by weight of said dentifrice and also adding to said liquid vehicle about 1-4 percent by weight of dentifrice of solid water-swellable synthetic anionic polycarboxylate polymer.