A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 13/00 (2006.01)
Patent
CA 2526161
A composition is provided, wherein the composition comprises a water- swellable, water-insoluble polymer or a water-soluble polymer, a blend of a hydrophilic polymer and a complementary oligomer capable of hydrogen bonding to the hydrophilic polymer. The composition also includes a second water- swellable, water-insoluble polymer that provides for a phase separating film forming composition. Active ingredients, such as a whitening agent, may be included. The composition finds utility as an oral dressing, for example, a tooth whitening composition that is applied to the teeth in need of whitening, and removed when the degree of whitening has been achieved. In certain embodiments, the composition is translucent. Methods for preparing and using the compositions are also disclosed.
L'invention concerne une composition filmogène à séparation de phases comportant : un premier polymère hydro-insoluble qui gonfle dans l'eau, ou un polymère hydrosoluble ; un mélange comprenant un polymère hydrophile et un oligomère complémentaire pouvant se lier au polymère hydrophile par liaison hydrogène ; un deuxième polymère hydro-insoluble qui gonfle dans l'eau ; des ingrédients actifs, tels qu'un agent blanchissant. La composition selon l'invention peut être utilisée en tant que revêtement buccal, par exemple en tant que composition de blanchiment dentaire qui est appliquée sur des dents devant être blanchies, puis retirée lorsque le degré de blanchiment voulu est atteint. Dans certains modes de réalisation, la composition est translucide. Cette invention se rapporte en outre à des procédés de préparation et d'utilisation desdites compositions.
Bairamov Danir F.
Cleary Gary W.
Feldstein Mikhail M.
Mudumba Sri
Singh Parminder
A.v. Topchiev Institute Of Petrochemical Synthesis
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Corium International
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