Thermoplastic extruded foam insulation board

摘要

To provide a thermoplastic resin extruded foamed heat insulating plate which contains a fluorinated propene and an inorganic radiation suppressing agent and which is excellent in heat insulating property and is suitable as a heat insulating material to be used for a layout heat insulating method.SOLUTION: The thermoplastic resin extruded foam heat insulating board which is cut into a predetermined size and used for the allocated heat insulating method, wherein the length of the plate surface in the longitudinal direction is 1800 mm or more, the length in the short direction And that said foam insulation board contains an inorganic radiation control agent and a fluorinated propene and that said foam insulation board has a short side of the plate surface to the thermal conductivity at the center part of the plate surface And the ratio of the thermal conductivity at the direction end portion was more than 1.0 and 1.1 or less.BACKGROUND OF THE INVENTION