Bottle closure for two-compartment containers

摘要

The invention relates to a bottle closure cap for two-component containers, having a collar (9) which protrudes into the bottle neck and bears a beaker (7) via a thread which runs opposite to the bottle screw thread. For a design which is favourable in manufacture and use, the invention proposes that the collar (9) which protrudes into the bottle neck is continued on the upper side into a collar wall (11) with an internal thread (40) for retaining a lid (28).