| abstract |
Process for stabilizing dentifrice containing alkali metal carboxyalkyl cellulose and 1,6-di-(p-chlorophenyl biguanidohexane) salt against precipitation and floculation comprising adding to alkali metal carboxyalkyl cellulose, water and a humectant, to which a water-soluble surface-active agent, such as sodium N-lauroyl sarcosinate, is added, a non-toxic water soluble salt of 1,6-di-(p-chlorophenyl biguanidohexane). The salt of 1,6-di-(p-chlorophenyl biguanidohexane) may be added together with or after the surface-active agent. The remaining dentifrice components such as polishing agent may be added before or after the surface-active agent. |