A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/318.1
A61K 7/18 (1980.01)
Patent
CA 1105389
CIP of C-4580 ANTI-CORROSION FORMULATION FOR TOOTHPASTES Abstract of the Disclosure A formulation which consists essentially of from about 20%, by weight, to about 875, by weight, zinc oxide, from about 13% to about 80%, by weight of a selected type of acidic pH adjuster, and from about 0% to about 7%, by weight, of trimagnesium phosphate, when incorporated in fluorine-con- taining toothpaste formulations which also contain at least one compound selected from the group consisting of an insoluble alkali metal metaphosphate and calcium pyrophosphate, yields a smooth paste having a pH of from about 5.5 to about 6.8 which will not corrode the inside of unlined aluminum tubes contain- ing such a formulation. When the components of the formulation are based on the weight of the entire toothpaste formulation, said zinc oxide can be present at from about 0.05% to about 2.0%, the acidic pH adjuster can be present at from about 0.05% to about 3.0%, and the trimagnesium phosphate can be present at from about 0% to about 0.5%.
266514
Benkwitt Frances C.
Coll-Palagos Miguel
Gowling Lafleur Henderson Llp
Stauffer Chemical Company
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