Method for neutralizing or recycling carrier materials for film-like coatings

摘要

The present invention relates to methods by which to produce sheet-like, wafer-like or film-like forms of drugs, confectionery, other food, cosmetics and the like for oral application or intake. The present invention is more particularly directed to the thermal treatment of carrier materials used in the production of such sheet-like, wafer-like or film-like forms. The thermal treatment removes contaminating or undesired substances from the carrier material.

主权项

1. A method for removing contaminating or undesired substances from a carrier material by subjecting such carrier material to a thermal treatment,
wherein said carrier material has been coated with an active ingredient containing coating thus forming an active ingredient containing film, this resulting active ingredient containing film has been peeled off the carrier material and the carrier material has been contaminated by substances stemming from said coating; wherein said contaminated carrier material comprises contamination by penetration of said substances stemming from said coating into said carrier material; and said thermal treatment comprises evaporating said substances.