A two-component package comprises a cup arranged in a neck of the package to receive one component, and a screw cap. The cup defines an intended break line and cooperates with the neck of the package. A collar which extends into the cup, defines an abutment edge at the front end thereof. The abutment...http://www.google.es/patents/US4591050?utm_source=gb-gplus-sharePatente US4591050 - Two-component package
