Process for preparing an intravaginal application system
AssigneeHoechst Aktiengesellschaft
InventorsDietrich Hiller, Theophil Hornykiewytsch
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Abstract
In the process for preparing an intravaginal application system for the controlled release of substances, a milled sheet of silicone rubber containing the substances is inserted into one mold component of a split mold. The core of the system is arranged on this milled sheet and is covered with a second milled sheet of the same type. The mold is then closed and the milled sheets are vulcanized at a maximum temperature of 120.degree. C.
Claims12
An application system for the controlled release of substances, comprising an elastic core with a sheathing containing these substances, wherein a milled sheet of silicone rubber with a kick-off temperature of between 60.degree. and 120.degree. C., and containing the substances is arranged on a core having a resilience of 5 to 15N, the milled sheet containing .alpha.-progesterone and substances which modify the properties of the silicone rubber.
An application system for the controlled release of substances, comprising an elastic core and a sheathing on said core of a silicone rubber, said silicone rubber having a kick-off temperature in the range of from about 60.degree. to about 120.degree. C. and containing said substances.
Dependencies are inferred from the claim text.