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Medical aerosol formation receptacle containing a medical aerosol formation having a laser welded metal foil and a method of production thereof

W.Wang, L.Li, R.Stewart and P.D. Hodson

3M INNOVATIVE PROPERTIES COMPANY, WIPO (World Intellectual Property Organisation). WO/2006/028639. 2006 Mar 16..

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Abstract

The present application discloses a hermetically sealed metal receptacle con-taining a medicinal aerosol formulation, preferably a pressurized medicinal aerosol formulation, or a liquefied aerosol propellant, wherein at least a portion of the receptacle comprises metal foil (1) having a thickness of from 25µm to 250µm which is laser welded to form a hermetic seal. The present application describes also a method of manufacturing such a hermetically sealed metal receptacle.