STP912: Polycarbonate Coextrusions for Barrier Flexible Packaging

    Rohn, BA
    Marketing specialist, General Electric Plastics, Pittsfield, MA

    Pages: 11    Published: Jan 1986


    Abstract

    This paper evaluates the benefits of polycarbonate resin as a structural layer in high-barrier coextrusions for flexible packaging. High-temperature performance requirements are examined for hot-fill, retort, autoclave, and ovenable packaging. Coextrudable barrier resins and tie layer resins are evaluated for processability, and the benefits of low- and high-moisture barriers are compared in composites using moisture-sensitive oxygen barrier resins. Optimum barrier composite structures are defined and evaluated.

    Keywords:

    coextrusion, barrier composite, oxygen permeation, moisture vapor transmission, structural layer, moisture sensitivity, tie layers, barrier resins, hot fill, retort, autoclave, heat seal, flexible packaging


    Paper ID: STP18323S

    Committee/Subcommittee: F02.30

    DOI: 10.1520/STP18323S


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