Method of making a tartar control dentifrice containing fluoride

Details Method of making a tartar control dentifrice containing fluoride Method of making a tartar control dentifrice containing fluoride

1996-11-26

1998-07-07

Rose, Shep K.

Material or article handling

With weighing

424 49, 424 52, 424 57, A61K 716, A61K 718, A61K 720

Patent

active

057764379

ABSTRACT:
The present invention relates to a method of manufacturing predominately undissolved pyrophosphate and calcium peroxide compositions comprising the steps of: (a) preparing a mixture of a soluble fluoride ion source and one or more aqueous carrier materials; (b) adding tetrasodium pyrophosphate and calcium peroxide, all at once or in portions, under conditions wherein less than about 20% of the total pyrophosphate and calcium peroxide are dissolved in the mixture, and wherein any further remaining aqueous carrier materials not added to the mixtures during step (a) are added in whole or in part in step (b) or thereafter, either by themselves or with any remaining amount of the tetrasodium pyrophosphate or calcium peroxide under conditions such that less then about 20% of the total pyrophosphate and calcium peroxide are dissolved in the mixture; and (c) heating the mixture.

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