Flat system for using in the oral cavity

Details Flat system for using in the oral cavity Flat system for using in the oral cavity

A - Human Necessities

61

K

A61K 9/00 (2006.01)

Patent

CA 2554892

The invention relates to a flat system for using in the oral cavity, and to a method for the production thereof. Said system consists of at least one upper water-soluble covering layer and at least one lower water-soluble covering layer. At least one intermediate layer is provided between the upper and lower covering layers, said intermediate layer having a smaller surface area than the covering layers and being recessed along the edge of the flat system.

L'invention concerne un système plat destiné à être utilisé dans la cavité buccale, ainsi que son procédé de production. Le système selon l'invention est constitué d'au moins une couche de recouvrement hydrosoluble supérieure et d'au moins une couche de recouvrement hydrosoluble inférieure. Au moins une couche intermédiaire est prévue entre les couches de recouvrement supérieure et inférieure. Cette couche intermédiaire présente une superficie inférieure à celles desdites couches de recouvrement, et est évidée le long du bord du système plat.

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