FOAMED PET PACKAGING
    4.
    发明申请

    公开(公告)号:WO2004103828A3

    公开(公告)日:2004-12-02

    申请号:PCT/US2004/015304

    申请日:2004-05-14

    Abstract: This invention provides packages and containers (201) produced by a solid state method for the manufacture of foam polymeric material (204). The packages are suitable for pre-cooking or sterilization, insulated transport, cooking vessel, reheating, and storage of food. The gas impregnated thermoforming (GIT) process includes interleaving an article of raw polymeric material with a gas channeling means; exposing the article to a non-reacting gas at elevated pressure to achieve a desired concentration of gas within the polymer (204), thereby forming a partially gas-saturated article (201), separating it from the gas channeling means, the decompressing, foaming and forming it at a temperature below the material's melt temperature; and finally trimming it to produce a finished foamed polymeric material (204) and recycleable scrap solid state process foamed polymer.

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