Production of dosing molds from active substance-containing...

A - Human Necessities – 61 – J

Patent

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A61J 3/10 (2006.01)

Patent

CA 2598168

Disclosed is a method for producing dosing molds, according to which two separating films (7) are contacted with each other in a defined area, an active substance-containing melt is introduced between the separating films (7) such that a pocket for receiving a portion of the melt is embodied in at least one of the separating films, and the separating films (7) are separated from each other in order to eject the portion. Preferably, a method is disclosed in which the separating films (7) are contacted with each other in the gap of two molding rolls (2, 3) which rotate in opposite directions and are provided with opposite recesses (4, 5) on the surface thereof, and into which the separating films (7) can be pressed when the active substance- containing melt is introduced so as to form pockets. The separating films (7) make it possible to avoid a direct contact between the melt and the rolls (4,5) and thus prevent the melt from adhering to the roll (2, 3). Elastically deformable separating films (7) support the ejection process as a result of the stress thereof being released after leaving the roll gap (2, 3).

L'invention concerne un procédé permettant de produire des formes de dosage, selon lequel deux films de séparation (7) sont appliqués l'un contre l'autre dans une zone définie, une matière fondue contenant un principe actif est introduite entre les films de séparation (7), de sorte à former dans au moins un des films de séparation (7), une poche pour recevoir une portion de matière fondue, puis les films de séparation (7) sont séparés l'un de l'autre, afin de démouler la portion formée. L'invention concerne de préférence un procédé selon lequel les films de séparation (7) sont appliqués l'un contre l'autre dans l'espace situé entre deux cylindres de moulage (2,3) tournant en sens inverse. Lesdits cylindres de moulage présentent sur leur surface, des cavités (4, 5) opposées, dans lesquelles les films de séparation (7) peuvent être comprimés pour former des poches, lors de l'introduction de la matière fondue contenant le principe actif. La présence des films de séparation (7) évite un contact direct entre la matière fondue et les cylindres (4, 5) et par conséquent l'adhérence de la matière fondue au cylindre (4, 5). Les films de séparation (7) à déformation élastique facilitent le démoulage, de par leur détente une fois qu'ils ont quitté l'espace compris entre les cylindres.

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