| 摘要 |
<p>A cylindrical container body for packaging pressurized carbonated beverages, comprising (a) at least one film of a synthetic or semi-synthetic organic polymer having a permeability to oxygen lower than 6x10-13 ml.cm/cm2.sec.cm of mercury at 25 DEG C. and 0% relative air humidity; (b) at least two films of a polyester; and (c) at least two layers of an organic thermoplastic binder having a permeability to water vapor lower than 1x10-14 g.cm/cm2.sec.cm of mercury at 38 DEG C. and 90% relative air humidity, all the films of (a) and (b) being adhesively bonded together by means of the binder of (c) in the form of a cylindrical body, the wall of which has a spirally or convolutely wound structure, in which each film of (a) is separated both from the outside surface and from the inside surface of the cylindrical body by at least one film of (b) and at least one layer of (c), and containers comprising said cylindrical body and provided with top and bottom end closures at the opposite ends thereof.</p> |
