Dentifrice composition
AssigneeKao Soap Co., Ltd.
InventorsToshiro Asakawa, Atsuo Ishida, Shizuo Hayashi
Life of this patent
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Abstract
A dentifrice composition comprising a water-soluble fluoride of the type customarily added to dentifrices as a caries-preventing agent, in an amount of 100 to 2,000 ppm calculated as fluorine, and 0.3 to 13% by weight of montmorillonite having the following composition (% by weight, calculated on an anhydrous basis): SiO.sub.2 : 60.0 - 70.0 MgO : 2.0 - 5.0 Fe.sub.2 O.sub.3 : 0 - 2.0 Al.sub.2 O.sub.3 : 20.0 - 30.0 Na.sub.2 O : 2.0 - 5.0 or hectorite having the following composition (% by weight, calculated on an anhydrous basis): SiO.sub.2 : 50.0 - 65.0 Na.sub.2 O : 2.5 - 5.0 Fe.sub.2 O.sub.3 : 0 - 2.0 MgO : 20.0 - 30.0 Li.sub.2 O : 0.6 - 2.0
Claims3
A dentifrice composition containing a water-soluble fluorine-containing caries-preventing agent in an amount of from 100 to 2,000 ppm calculated as fluorine, and from 0.3 to 13 percent by weight of
- montmorillonite having the composition, in terms of percent by weight, calculated on an anhydrous basis,
- ______________________________________ SiO.sub.2 60.0 to 70.0 MgO 2.0 to 5.0 Fe.sub.2 O.sub.3 zero to 2.0 Al.sub.2 O.sub.3 20.0 to 30.0 Na.sub.2 O 2.0 to 5.0 ______________________________________
Dependencies are inferred from the claim text.