| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device of a delivery/warehousing opening of a warehouse, which prevents a fire from being caused by the burning of gas generated due to fusion of a flexible polyurethane foam caused by the heat of a lamp. SOLUTION: In this sealing device of the delivery/warehousing opening of the warehouse, an elastic heat-insulating layer 31 with excellent air permeability is provided on a front surface of a core material 30 of the flexible polyurethane foam, and a mat, wherein they are covered with a fire-retardant resin-based sheet 32, is mounted on the peripheral edge of the delivery/warehousing opening 11. Thus, gas is discharged to the outside through the layer 31 when generated because the flexible polyurethane foam is melted by the heat of the lamp. Consequently, the fire is prevented from being caused by the burning of the gas which is accumulated inside the flexible polyurethane foam. COPYRIGHT: (C)2005,JPO&NCIPI
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