To obtain a nonslip impervious sheet having an excellent nonslip function by laminating nonwoven cloths having a high strength at one face or both faces of a plastic foamed sheet and partly melting and sticking a hot- melt resin thereon.
A high strength nonwoven cloth 2 is laminated on a unilateral face of a plastic foamed sheet 1 with closed-cells and further, hot-melt resins 3, 3 are melted and stuck to form stripes on the surface thereof. And the hot- melt resin 3 is directly melted on the other unilateral face of the foamed sheet 1 to form stripes. This foamed sheet 1 is as thick as 1-5 mm and the apparent density is preferably 0.02-0.1 g/cm3. It is preferable that the nonwoven cloth 2 has a tensile strength of 30 kg/cm2 or more and a tear strength of 50 kg/cm or more. And further it is preferable that the hot-melt resin 3 is fixed on the surface of the impervious sheet, less than 20%. In this way, an impervious sheet which is light and environment-friendly and nonslip even in the presence of water during the execution, can be obtained.
SUGAI YOSHIMASA
SUZUKI SHUICHI
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