| http://www.w3.org/ns/prov#value | - In FIG. 13 there is shown another construction of a barrier-type packaging film 64 which is comprised of biaxially oriented coextruded polypropylene substrates 66 and 67 having surfaces 68 and 69 respectively upon which there is provided barrier coating 71 and 72 of a suitable thickness ranging from 50 to 180 Angstroms formed of a suitable material such as aluminum oxide.
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