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    • 6. 发明授权
    • Preparation of cured in place liner with integral inner impermeable layer
    • 固化内衬的制备具有内部不可渗透层的内衬
    • US07261788B1
    • 2007-08-28
    • US10703814
    • 2003-11-07
    • Franklin Thomas Driver
    • Franklin Thomas Driver
    • B29C53/48B29C63/34
    • F16L55/1656B29C53/382B29C63/0004B29C63/065B29C63/36B29L2023/006F16L55/1654Y10T156/1013
    • A resin impregnated cured in place liner with an integral inner impermeable layer, a method for its manufacture and an apparatus to do this are provided. The liner is formed from a resin impregnable material having an impermeable layer bonded to one surface. The material is formed into tubular shape with the impermeable layer on the outside of the tube about a tubular forming member and continuously everted into the tubular forming device to place the impermeable layer on the inside. An outer impermeable film is placed about the inner tubular layer and may be impregnated with vacuum in the usual manner. Alternatively, the tubular resin impregnable material may be passed through a resin tank and impregnated with a curable resin prior to being wrapped with an outer impermeable layer. The impregnated liner is then suitable for pull-in-and-inflate which can be by steam in view of the integral inner impermeable layer of the liner.
    • 提供浸渍固化的树脂,具有整体内部不可渗透层的固定衬垫,其制造方法和设备。 衬垫由具有粘结在一个表面上的不可渗透层的树脂浸渍材料形成。 该材料形成为管状,管的外侧的不渗透层围绕管状形成构件,并连续地转入管状成形装置,以将不可渗透层置于内部。 外部不可渗透的膜被放置在内部管状层周围,并且可以以常规方式用真空浸渍。 或者,管状树脂浸渍材料可以在被外部不可渗透层包裹之前通过树脂罐并浸渍有可固化树脂。 浸渍的衬垫然后适合于吸入和膨胀,其可以考虑到衬套的整体内部不可渗透层通过蒸汽。