The present invention relates to a dry type tooth whitening patch comprising peroxide as a tooth whitening agent. In particular, disclosed is a dry type tooth whitening patch in which a peroxide is contained, as a teeth whitening agent, in a matrix type adhesive layer. The adhesive layer includes, a
The present invention relates to a dry type tooth whitening patch comprising peroxide as a tooth whitening agent. In particular, disclosed is a dry type tooth whitening patch in which a peroxide is contained, as a teeth whitening agent, in a matrix type adhesive layer. The adhesive layer includes, as a base polymer thereof, a hydrophilic glass polymer which provides a strong adhesion to teeth while releasing the tooth whitening agent when hydrated on the enamel layers of teeth in the moist oral cavity. The dry type patch according to the present invention is convenient in use, as compared to wet type patches. Further, it exhibits a superior adhesion while being maintained in a state attached to the teeth for a lengthened period of time so as to assure an enough contact time between the whitening agent in the patch and stains on the teeth, thereby giving a sufficient whitening effect.
대표청구항▼
1. A dry matrix patch for tooth whitening, comprising:a peroxide tooth whitening agent; anda peroxide-compatible hydrophilic glass polymer as a base polymer, the patch being able, when applied to the teeth of a user, to provide adhesion to enamel and release the tooth whitening agent upon becoming h
1. A dry matrix patch for tooth whitening, comprising:a peroxide tooth whitening agent; anda peroxide-compatible hydrophilic glass polymer as a base polymer, the patch being able, when applied to the teeth of a user, to provide adhesion to enamel and release the tooth whitening agent upon becoming hydrated;wherein the hydrophilic glass polymer is selected from the group consisting of polyalkylvinylether-maleic acid copolymer, polyvinyl alcohol, polyacrylic acid, Poloxamer 407, polyvinyl pyrrolidone-vinyl acetate copolymer, polyvinyl pyrrolidone, Polyquaterium-11, Polyquaterium-39, carbomer, hydroxypropylmethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, gelatin, sodium alginate and mixtures thereof. 2. The patch of claim 1, comprising a stabilizer for the peroxide. 3. The patch of claim 2, wherein the stabilizer is selected from the group consisting of alkylaryl suiphonates, alkyl suiphates, alkylcarboxylates, alkyldiphenyloxide disuiphonates, sorbitan stearate, sorbitan inonooleate, sorbitan trioleate, and mixtures thereof. 4. The patch of claim 1, comprising a polyphosphate. 5. The patch of claim 4, wherein the polyphosphate is selected from the group consisting of tetrasodium pyrophosphate, sodium acid pyrophosphate, sodium hexametaphosphate, sodium hexametaphosphate, sodium tripolyphosphate, sodium potassium tripolyphosphate, tetrapotassium pyrophosphate, acidic sodium metapolyphosphate and combinations therof. 6. The patch of claim 1, comprising a backing. 7. The patch of claim 6, wherein the backing comprises a polymer selected from the group consisting of cellulose acetate phthalate, Shellac, polyvinylacetate, ethyl cellulose, polymethylmethacrylate, methacryloylethl betain/methacrylate copolymer, methacrylic acid copolymer, aminoalkylmethacrylate copolymers, and mixtures thereof. 8. The patch of claim 6, wherein the backing comprises a pigment selected from the group consisting of titanium dioxode, surface treated titanium dioxide, zinc oxide, hydroxy apatite, talc, pearl, and mixtures thereof. 9. The patch of claim 6, comprising an adhesive layer and a backing layer, wherein the adhesive layer comprises the hydrophilic glass polymer. 10. A formulation for tooth whitening, comprising:a peroxide tooth whitening agent; anda peroxide-compatible hydrophilic glass polymer as a base polymer,wherein the hydrophilic glass polymer is selected from the group consisting of polyalkylvinylether-maleic acid copolymer, polyvinyl alcohol, polyacrylic acid, Poloxamer 407, polyvinyl pyrrolidone-vinyl acetate copolymer, polyvinyl pyrrolidone, Polyquaterium-11, Polyquaterium-39, carbomer, hydroxypropylmethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, gelatin, sodium alginate and mixtures thereof; the formulation being able, when applied to the teeth of a user, to provide adhesion to enamel and release the tooth whitening agent upon becoming hydrated. 11. The formulation of claim 10, comprising a stabilizer for the peroxide. 12. The formulation of claim 11, wherein the stabilizer is selected from the group consisting of alkylaryl suiphonates, alkyl suiphates, alkylcarboxylates, alkyldiphenyloxide disuiphonates, sorbitan stearate, sorbitan monooleate, sorbitan trioleate, and mixtures thereof. 13. The formulation of claim 10, comprising, a polyphosphate. 14. The formulation of claim 13, wherein the polyphosphate is selected from the group consisting of tetrasodium pyrophosphate, sodium acid pyrophosphate, sodium hexametaphosphate, sodium hexametaphosphate, sodium tripolyphosphate, sodium potassium tripolyphosphate, tetrapotassium pyrophosphate, acidic sodium metapolyphosphate and combinations therof. 15. The formulation of claim 10, comprising a backing. 16. The formulation of claim 15, wherein the backing comprises a polymer selected from the group consisting of cellulose acetate phthalate, Shellac, polyvinylacetate, ethyl cellulose, polymethylmethacrylate, methacryloylethyl betain/methacrylate copolymer, m ethacrylic acid copolymer, aminoalkylmethacrylate copolymers, and mixtures thereof. 17. The formulation of claim 15, wherein the backing comprises a pigment selected from the group consisting of titanium dioxode, surface treated titanium dioxide, zinc oxide, hydroxy apatite, talc, pearl, and mixtures thereof. 18. The formulation of claim 15, comprising an adhesive layer and a backing layer, wherein the adhesive layer comprises the hydrophilic glass polymer. 19. A dry patch comprising the formulation of claim 15. 20. The dry patch of claim 19, wherein the dry patch comprises a matrix.
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