Composite container for sterile, solid products

Abstract From the Canadian patent

A composite container suitable for the lasting preservation, under absolutely sterile conditions of, sterile, solid products, particularly pharmaceutical products. Such a container comprises an inner bag or, tubular element, made of low-density polyethylene and directly containing the product to be preserved and an outer bag consisting of three layers of different materials of, which polyethylene, the high-density type being preferred or polyvinylchloride forms the innermost layer aluminium, the intermediate layer and a polyester resin the outermost one. The ends of the bags are hermetically sealed after being evacuated.