B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 7/06 (2006.01) A61F 13/02 (2006.01) A61M 35/00 (2006.01) B32B 7/14 (2006.01)
Patent
CA 2373276
Substrate sections which have been rendered pressure--sensitive adhesive and sealed in bags so as to be protected against loss of active substance, the pressure-sensitive adhesive surface of which is covered by a carrier layer which projects at least partially beyond said substrate sections and is divided by an incision, thus forming a detachment aid, through which incision adhesive may leak out in cold flow during storage and may cause the substrate section to stick to the bag, characterized in that in order to increase storage stability by avoiding leakage of pressure-sensitive adhesive, the carrier layer is configured with two carrier layer sections (2, 3) which over-lap each other in the region (4) where they are joined. (Fig. 1)
La présente invention concerne des sections de substrat auto-adhésives, protégées contre les pertes de matière active par scellement en sacs. La surface auto-adhésive desdites sections est couverte par une couche porteuse qui fait au moins partiellement saillie sur ladite surface. Ladite couche porteuse est séparée par une encoche, formant une aide au détachement. Pendant un stockage, l'adhésif peut sortir par cette encoche en flux froid et engendrer un collage avec le sac. Cette section de substrat se caractérise en ce que la couche porteuse comporte deux sections de couche porteuse (2, 3) qui se chevauchent dans la zone de leur assemblage (4), afin d'améliorer la stabilité au stockage en évitant la sortie d'adhésif de la couche porteuse.
Schumann Klaus
Theobald Frank
von Falkenhausen Christian
Blake Cassels & Graydon Llp
Lts Lohmann Therapie-Systeme Ag
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