Thermoplastic silicone copolymer-based matrix system

A - Human Necessities – 61 – K

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A61K 47/30 (2006.01) A01N 25/10 (2006.01) A61K 9/20 (2006.01) C08K 3/00 (2006.01) C08K 5/00 (2006.01) C08K 13/02 (2006.01) C08L 83/10 (2006.01)

Patent

CA 2077745

BREVET D'INVENTION SYSTEME MATRICIEL A BASE D'UN COPOLYMERE SILICONE THERMOPLASTIQUE CONTENANT UN OU PLUSIEURS COMPOSES, L'UN ETANT HYGROSCOPIQUE RHONE POULENC RORER S.A. ABREGE La présente invention concerne une composition caractérisée en ce qu'elle comprend : A : au moins un copolymère silicone thermoplastique non dégradable par hydrolyse, B : un ou plusieurs composés dont au moins l'un d'entre eux est hygroscopique, dispersés au sein de A. Utilisation de la composition pour réaliser des systèmes matriciels à libération contrôlée en milieux aqueux ou en atmosphère humide.

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