SURFACING SHEET AND FOAMING RESIN-MADE THERMAL INSULATION BOARD

摘要

PROBLEM TO BE SOLVED: To provide a surfacing sheet which neither causes resin leakage in a production process of an foaming resin-made thermal insulation board nor causes a failure even when used in a hot asphalt application method but which is suitable for obtaining the foaming resin-made thermal insulation board. SOLUTION: The surfacing sheet of the foaming resin-made thermal insulation board is an inorganic fiber nonwoven fabric which is based on an inorganic fiber and a resin binder and has a surface layer portion on one surface thereof and a nonwoven fabric layer portion to be continued from the surface layer portion to the thickness direction thereof. The surface layer portion comprises such a nonwoven fabric-paint mixed layer that an inorganic pigment in the paint applied to the surface thereof and the resin binder are fixed in the nonwoven fabric in states penetrated into the surface layer portion. The nonwoven fabric layer portion comprises a sole layer of the nonwoven fabric having 30-500μm average thickness. The surfacing sheet has 5-1,500 cc/min/cm2Coresta permeability (according to a measurement method based on the Coresta recommendation method No40 ISO2965) and 26-34 wetting index. The foaming resin-made thermal insulation board has the surfacing sheet as a surfacing. COPYRIGHT: (C)2011,JPO&INPIT