A system for the controlled-rate release of active substances, consisting of:(a) a deposit-core comprising the active substance and having defined geometric form;(b) a support-platform applied to said deposit-core. Said deposit-core contains, mixed with the active substance, a polymeric material having a high degree of swelling on contact with water or aqueous liquids, a gellable polymeric material, said polymeric materials being replaceable by a single polymeric material having both swelling and gelling properties, ...
System for the controlled-rate release of active substances / Colombo, Paolo; Aldo La, Manna; Ubaldo, Conte. - ELETTRONICO. - (1989).
System for the controlled-rate release of active substances
COLOMBO, Paolo;
1989-01-01
Abstract
A system for the controlled-rate release of active substances, consisting of:(a) a deposit-core comprising the active substance and having defined geometric form;(b) a support-platform applied to said deposit-core. Said deposit-core contains, mixed with the active substance, a polymeric material having a high degree of swelling on contact with water or aqueous liquids, a gellable polymeric material, said polymeric materials being replaceable by a single polymeric material having both swelling and gelling properties, ...I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
