Single phase whitening dentifrice comprising a cross-linked...

Details Single phase whitening dentifrice comprising a cross-linked... Single phase whitening dentifrice comprising a cross-linked...

A - Human Necessities

61

K

A61K 8/72 (2006.01) A61K 8/20 (2006.01) A61K 8/22 (2006.01) A61K 8/24 (2006.01) A61K 8/25 (2006.01) A61K 8/46 (2006.01) A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61K 8/86 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 2622501

A single phase whitening dentifrice that includes (i) a whitening agent selected from the group consisting of hydrogen peroxide, a bound peroxide and a solid peroxide (ii) an abrasive and (iii) a substantially anhydrous orally acceptable carrier, for example, polyethylene glycol. The bound peroxide may be hydrogen peroxide and a polymer and/or any peroxide compound and a porous cross-linked polymer, such as polymers of polyvinyl pyrrolidone, polyacrylates, a polymethacrylates, and a polyitaconates. The solid peroxide may be sodium perborate or urea peroxide. The invention also provides methods of whitening the tooth surfaces by contacting the surface with the composition.

L'invention concerne une pâte dentifrice de blanchiment à phase unique, comprenant (i) un agent de blanchiment sélectionné dans le groupe comprenant du peroxyde d'hydrogène, un peroxyde lié et un peroxyde solide, (ii) un agent abrasif et (iii) un excipient sensiblement anhydre adapté à la bouche, comme du polyéthylène glycol, par exemple. Le peroxyde lié peut être du peroxyde d'hydrogène et un polymère et/ou un composé peroxydé et un polymère réticulé poreux, tel que des polymères à base de polyvinyle pyrrolidone, de polyacrylates, de polyméthacrylates et de polyitaconates. Le peroxyde solide peut être du perborate de sodium ou du peroxyde d'urée. L'invention concerne également des procédés destinés au blanchiment de la surface des dents, consistant à mettre la surface des dents en contact avec la composition.

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