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    • 20. 发明授权
    • Flexible polymer film with vapor impermeable coating
    • 柔性聚合物膜,具有不透气的涂层
    • US4702963A
    • 1987-10-27
    • US367382
    • 1982-04-12
    • Roger W. PhillipsCraig M. ShevlinJohn S. Matteucci
    • Roger W. PhillipsCraig M. ShevlinJohn S. Matteucci
    • B65D65/40C08J7/06B32B17/06
    • C08J7/06Y10T428/1321Y10T428/1338Y10T428/1341Y10T428/31786
    • Flexible polymer packaging films having thin films of inorganic coatings deposited thereon to reduce the vapor permeability of the article. Inorganic thin film coatings comprising a composite of two materials are disclosed to confer both substantial transparency and retortability on the overall packaging film structure. The two material film composite involves either sequentially deposited films with the first thin film layer serving as an adhesion layer and the second thin film layer serving as a barrier layer. Alternatively, the two materials may be co-deposited to form a single thin film layer which provides sufficient adhesion to confer retortability on the overall film structure and also functions as relatively impermeable gas and vapor barrier for reducing the vapor transmission rate through the product. Various coated single film articles and dual film laminated articles are disclosed.
    • 具有沉积在其上的无机涂层的薄膜的柔性聚合物包装膜以降低制品的透气性。 公开了包含两种材料的复合材料的无机薄膜涂层,以在整个包装膜结构上赋予基本的透明度和可蒸馏性。 两种材料膜复合物包括顺序沉积的膜,其中第一薄膜层用作粘合层,第二薄膜层用作阻挡层。 或者,可以共同沉积两种材料以形成单个薄膜层,其提供足够的粘合力以赋予整个膜结构上的蒸馏性能,并且还用作相对不可渗透的气体和蒸气阻挡层,以降低通过产品的蒸气透过率。 公开了各种涂布的单膜制品和双层层压制品。