| abstract |
(57) [Problem] To provide a polystyrene resin foam using a foaming agent that does not destroy the ozone layer. SOLUTION: A polystyrene resin foam obtained by extruding a polystyrene resin using a foaming agent comprising propane, butane or a mixture thereof and 1,1,3,3,3-pentafluoropropane is obtained. The object is achieved by a polystyrene resin foam characterized by comprising a body and a method for producing the same. |