| 摘要 |
PROBLEM TO BE SOLVED: To provide a combined molding which has flame retardancy, prevents an expansion-molded resin from exuding to the surface of a reinforcing material, the reinforcing material of which has flexibility and which prevents the generation of an abnormal sound. SOLUTION: The combined molding has the expansion-molded resin and a crimped filament-spunbonded nonwoven fabric being the reinforcing material of the expansion-molded resin. The crimped filament-spunbonded nonwoven fabric is formed by using, at the least, a polypropylene-based crimped filament having 0.5-10 dtex fineness and 2-40 pieces/25 mm number of crimps, is thermocompression-bonded at 2-15% partial thermocompression bonding rate, and has 50-200 g/m<SP>2</SP>basis weight, 0.5-2.0 mm thickness, 0.1-150 cm<SP>3</SP>/cm<SP>2</SP>/second air permeability and≥20 oxygen index (LOI) when measured according to JIS-K-7201. COPYRIGHT: (C)2011,JPO&INPIT |
