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    • 8. 发明专利
    • WATERPROOF SHEET PROVIDED WITH NONWOVEN FABRIC
    • JPS63265634A
    • 1988-11-02
    • JP20036687
    • 1987-08-11
    • HITACHI CABLE
    • WATANABE SHIGETAKATAKAGI MASAHARU
    • B32B25/10
    • PURPOSE:To contrive improvements in water resistance and shock resistance by making adhesive work on a site and a liquid adhesive agent unnecessary, by a method wherein any one kind out of polyester series or, polyvinyl alcohol series or glass series or glass series fibrous nonwoven fabric is fused onto one side of a waterproof rubber sheet unitarily thermally through a hot-melt film. CONSTITUTION:A hot-melt film 2 is held by placing the same between nonwoven fabric 1 and a waterproof rubber sheet 2, which is fused thermally and the nonwoven fabric 1 and waterproof rubber sheet 2 are stuck to each other at an interface. The waterproof sheet provided with the nonwoven fabric constituted in this manner can display sufficient cushioning properties to a protrusion or unevenness of a substrate when a nonwoven fabric 1 side is used by facing the same to the bottom side. Then when the nonwoven fabric 1 is laid by facing the same to the surface side, resistance to such contact of a foreign matter as to generate an external injury can be improve due to the nonwoven fabric 1. Therefore, the nonwoven fabric 1 can be fused thermally within a factory through a hot-melt film uniformly in a longitudinal direction without having a thermal deformation. A work on a site for the nonwoven fabric for which a liquid adhesive agent has been used can be eliminated and shock resistance and waterproof properties can be displayed completely.