Material having a substance protected by deformable...

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 51/12 (2006.01) A61K 9/70 (2006.01) B05D 1/28 (2006.01) B65D 65/14 (2006.01) C09J 7/02 (2006.01)

Patent

CA 2241922

A substance delivery system has a three-dimensional structure with outermost surface features (18) and spaces for containing a substance (16). The substance has a level below the outermost surface features such that the substance is protected from inadvertent contact with external surfaces. The substance remains protected until the three-dimensional structure is sufficiently deformed into a substantially two-dimensional structure and the substance is thereby exposed to contact an external surface (20) without compliance of the external surface being necessary. Deforming is preferably achieved by a compression force (F), wherein the outermost surface features (18) of the three-dimensional structure deform in a direction of the compression force. A method of making the three-dimensional material includes the steps of coating a substance onto a forming surface, transferring the coating of substance from the forming surface to a piece of material, and forming the piece of material into a three-dimensional structure on the forming surface while the substance is in contact with the forming surface.

Un système permettant d'appliquer une substance a une structure tridimensionnelle avec une surface avancée et des espaces pour recevoir la substance. La substance s'étend à un niveau en dessous de la surface avancée pour être protégée d'un contact accidentel avec une surface externe. La substance reste protégée jusqu'à ce que la surface tridimensionnelle soit suffisamment déformée pour avoir une structure essentiellement bidimensionnelle pour exposer la substance et lui permettre de venir en contact avec la surface externe sans qu'une déformation de la surface externe ne soit nécessaire. La déformation se fait, de préférence, par une compression au cours de laquelle la surface avancée de la structure tridimensionnelle se déforme dans la direction de la force de compression. Un procédé pour réaliser la structure tridimensionnelle consiste à appliquer un revêtement d'une substance sur une surface de formage, transférer le revêtement de la surface de formage sur un matériau et conférer à ce matériau une structure tridimensionnelle sur la surface de formage pendant que la substance est en contact avec celle-ci.

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