FIRE-RESISTANT COATING MATERIAL

摘要

PROBLEM TO BE SOLVED: To improve durability by applying a coating treatment to the peripheral edge end section of a laminated sheet laminated with a surface material layer on both faces of a sheet layer with a coating material. SOLUTION: A sheet layer A made of a resin composition containing a phosphorus compound and neutralized thermal expansible graphite 20-300 pts.wt. in total and an inorganic filler 20-500 pts.wt. against a thermoplastic resin and/or a rubber material 100 pts.wt. and having the weight ratio 0.01-9 between the neutralized thermal expansion graphite and the phosphorus compound is extrusion-molded. A galvanized steel sheet is laminated as a surface material B layer 1 on one face of the sheet layer A. A surface material B layer 2 made of a low-density polyethylene film, an aluminum deposition film or an aluminum lamination film is laminated on the other face to form a laminated sheet C. A coating treatment is applied to its peripheral edge end section with a coating material D mainly made of butyl rubber and containing an inorganic filler 10-500 pts.wt. against a resin component 100 pts.wt.