Tooth whitening composition comprising a porous cross-linked...

A - Human Necessities – 61 – K

Patent

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A61K 8/72 (2006.01) A61K 8/22 (2006.01) A61K 8/81 (2006.01) A61K 8/85 (2006.01) A61K 8/89 (2006.01) A61Q 11/02 (2006.01)

Patent

CA 2592843

In various embodiments, the present invention provides a tooth whitening composition comprising a peroxide composite and an orally acceptable carrier. The peroxide composite comprises a peroxide compound and a porous cross-linked polymer, preferably in the form of a microporous particulate. The peroxide compound can be sorbed onto the porous crosslinked polymer. The porous cross- linked polymer may comprise a polymerized polyunsaturated monomer selected from polyacrylates, polymethacrylates, polyitaconates, and mixtures thereof. The carrier can be non-aqueous, and can comprise a film forming material. Methods are also provided for whitening a tooth surface with the tooth whitening compositions.

Dans divers modes de réalisation, la présente invention fournit une composition de blanchiment des dents comprenant un composite de peroxyde et un support acceptable par voie orale. Le composite de peroxyde comprend un composé peroxyde et un polymère réticulé poreux, de préférence sous la forme de particules microporeuses. Le composé peroxyde peut être absorbé sur le polymère réticulé poreux. Le polymère réticulé poreux peut comprendre un monomère polyinsaturé polymérisé choisi parmi des polyacrylates, des polyméthacrylates, des polyitaconates et des mélanges de ceux-ci. Le support peut être non aqueux et peut comprendre un matériau filmogène. L~invention fournit également des procédés destinés à blanchir une surface d~une dent avec les compositions de blanchiment des dents.

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