Patent ID: 7210575

Claim:
A packaging unit in the form of a container with a closure cap for two substances to be stored separately from each other and mixed together before use, the packaging unit comprising a first bottle-like container ( 1 ) comprising a shoulder region ( 2 ) and an opening region ( 3 ), the opening region ( 3 ) comprising an external screw thread ( 6 ) and an annular constriction ( 7 ) with an internal diameter, a second container ( 4 ) frictionally secured in the annular constriction ( 7 ), and a closure cap ( 5 ) covering the opening region ( 3 ), wherein the second container ( 4 ) comprises a lower part ( 8 ) with a maximum external diameter that is less than the internal diameter of the annular constriction ( 7 ), an upper part ( 10 ) with a maximum external diameter that is less than the internal diameter of the annular constriction ( 7 ), and a central part ( 9 ) with an external diameter that is the same size or greater than the internal diameter of the annular constriction ( 7 ), the central part ( 9 ) being located inside or below the annular constriction ( 7 ) when the packaging unit is in an initially sealed state, the upper part ( 10 ) of the second container ( 4 ) is closed by a lid ( 12 ) that is insertable in the upper part ( 10 ).