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1. WO1991007163 - COMPOSITION DE SOINS BUCCAUX EN FLUORURE STANNEUX STABILISE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]
C L A I M S
1. An aqueous stannous fluoride composition for oral care, containing stannous fluoride and lower alkyl vinyl ether and maleic anhydride or maleic acid copolymer in an amount sufficient to efficiently stabilize the stannous fluoride concentration, the composition being substantially free from soluble pyrophosphates, silica containing compounds and aldehyde containing flavoring agents.
2. A composition of claim 1, wherein the lower alkyl vinyl ether is methyl vinyl ether.
3. A composition of claim 1 or 2, wherein the
composition is an aqueous non-abrasive home treatment gel composition.
4. A composition of claim 3, wherein the amount of stannous fluoride included in the composition provides from 0.05 to 5.0 percent by weight stannous fluoride, the copolymer being present in an amount from 0.5 to 5.0 percent by weight, the weight ratio of stannous fluoride to copolymer being from 0.01 to 1.0.
5. A composition of claim 1 or 2, wherein the
composition is an aqueous mouthwash composition.
6. A composition of claim 5, wherein the amount of stannous fluoride included in the composition provides from 0.05 to 5.0 percent by weight stannous fluoride, the copolymer being present in an amount from 0.5 to 5.0 percent by weight, the weight ratio of stannous fluoride to copolymer being from 0.01 to 1.0.
7. A composition of claim 1 or 2, wherein the
composition is an aqueous toothpaste composition.
8. A composition of claim 7, wherein the amount of stannous fluoride included in the composition provides from 0.05 to 5.0 percent by weight stannous fluoride, the copolymer being present in an amount from 0.5 to 5.0 percent by weight, the weight ratio of stannous fluoride to copolymer being from 0.05 to 1.0.
9. A composition of claim 7 or 8, wherein the
composition includes an abrasive.

10. A composition of claim 9, wherein the abrasive is a calcium pyrophosphate.
11. A method for the preparation of an aqueous stannous fluoride composition for oral care, which comprises dispersing the stannous fluoride in an aqueous solution of an alkyl vinyl ether and maleic anhydride or maleic acid copolymer, the amount of said copolymer being sufficient to stabilize the stannous fluoride concentration during formulation.
12. A method of claim 11, wherein the alkyl vinyl ether is methyl vinyl ether.
13. A method of claim 11 or 12 , wherein the amount of stannous fluoride included in the solution provides from 0.05 to 5.0 percent by weight stannous fluoride in the formulated composition.