Abstract: A transparent, flexible, heat sealable, water vapor barrier laminate, for use in forming a protective package, which is formed from three layers secured to each other by separate layers of laminating adhesive. One outer layer is a protective material consisting of a polyester film; the center layer is a barrier material consisting of a fluid compression rolled, monoaxially molecuarly oriented, high density polyethylene film; and the other outer layer is another protective material consisting of an ionomer film.

Abstract: Oriented composite polyester films, to which a wide variety of final application topcoatings are improvedly adherent, e.g., matte, photosensitive and magnetic topcoatings, comprise an oriented base film substrate (A) of a crystalline or semicrystalline polyester, the base film substrate (A) bearing an adhesion primer coating (B) on at least one of the face surfaces thereof, and the adhesion primer coating (B) comprising:(a) a crystalline, semicrystalline or crystallizable polyester;(b) a water-sensitive copolyster; and(c) an organic solvent-sensitive polyester or copolyester.

Abstract: A polymer seal and method of making same consisting of a combination of pre-polymers cured and bonded together to form a single multi-layered seal of varying hardness with at least one pre-polymer being a polyester-based pre-polymer and at least one pre-polymer being a polyether-based pre-polymer. The different pre-polymers, upon curing, yield 80 to 90 shore A and 80 to 90 shore D hardness urethanes respectively.