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    • 10. 发明授权
    • Laminates and laminated tubes and packages
    • 层压板和层压管和包装
    • US5165988A
    • 1992-11-24
    • US800874
    • 1991-11-27
    • Suzanne E. Schaefer
    • Suzanne E. Schaefer
    • B32B15/08B65D65/40
    • B32B15/08Y10T428/1321Y10T428/1359Y10T428/31678Y10T428/31692Y10T428/31913Y10T428/31928
    • Sheet materials and packages capable of holding hard-to-hold products such as methyl salicylate. The preferred embodiments include a foil layer 12 and a layer 14 of EVOH between foil layer 12 and the enclosed product. An anhydride modified adhesive layer 18 is disposed between the EVOH layer 14 and the product 52. Additional layers are used in the sheet material for purposes of adhesion, appearance, protection, body, and the like. One embodiment of the invention is a coextruded film comprising the EVOH layer 514, a surface layer 516 of LLDPE, an intervening adhesive layer 518, and a fourth covering layer 519 for covering and protecting the EVOH layer 514, especially from physical abuse. The sheet materials of the invention may be made into packages by means of fin seals 54 or lap seals 50.
    • 能够保持难以保持的产品如水杨酸甲酯的片材和包装。 优选实施例包括箔层12和箔层12与封闭产品之间的EVOH层14。 酸酐改性粘合剂层18设置在EVOH层14和产品52之间。为了粘合,外观,保护,身体等目的,在片材中使用另外的层。 本发明的一个实施方案是包括EVOH层514,LLDPE的表面层516,中间粘合剂层518和用于覆盖和保护EVOH层514的第四覆盖层519的共挤塑膜,特别是来自身体滥用。 本发明的片材可以通过翅片密封件54或搭接密封件50制成包装。