Process for the continuous production and coating of self-adhesive masses based on polyisobutylene and at least one pharmaceutical active compound

Continuous production of polyisobutylene (PIB)-based self-adhesive material with active pharmaceutical ingredients without using solvent or mastication involves charging a continuous compounding machine with a preliminary batch containing granulated PIB etc. and then adding liquid components shortly after starting the compounding process. A process for the continuous production of polyisobutylene (PIB)-based self-adhesive material with at least one active pharmaceutical ingredient (API) in a continuous machine with filling and compounding sections, without solvent and without mastication. The process involves: (a) charging the filling section with a preliminary batch of granulated PIB, release agent(s) and API, optionally with the addition of low-mol. wt. PIB, fillers, plasticisers, tackifiers and/or resins; (b) feeding the charge into the compounding section; (c) possibly adding optional components which were not charged into the filling section; (d) optionally adding other API components; (e) compounding to a homogeneous self-adhesive material; and (f) discharging the product. An Independent claim is also included for a similar process in which the API is/are first added in stage (c) along with any other components not added in (a) and a separate stage (d) as above is omitted.