| 摘要 |
<p>PURPOSE:To improve the efficiency of repar work by restraining a pressure leakage from the impermeability layer, contact between the liquid and the base material, and the increase of resistance to a reversal movement all together in a state of having substantially no hindrance, on a reparing material having a polyurethane impermeable layer to be used in pipe conduit reparing work. CONSTITUTION:A pipe conduit reparing material 13 has fluid impermeability at least in one side surface of a pliable sheet material 4 capable of being impregnated with unsaturated polyester resin, and is formed with an impermeable layer 15 integral with synthetic resin having flexibility, wherein the impermeable layer 15 is formed by polyurethane and a quantity of polyurethane per 1m<2> of the repairing material 13 is allowed to be in the range of 200g-800g in its ratio.</p> |
