| 摘要 |
PROBLEM TO BE SOLVED: To provide an automobile floor structure adding sound absorbing performance to a foamed polyolefin molding superior in mechanical characteristic, heat durability, chemical resistance, a weight reducing property by a simple and economical manufacturing method. SOLUTION: The foamed polyolefine resin molding having air flowing resistance value which is 3,000 Ns/m<SP>3</SP>to 50,000 Ns/m<SP>3</SP>when thickness is 0.02 m, is adopted to a floor material 3 for an automobile. Therefore, sound absorbing performance can be added to the foamed polyolefine resin molding, and noise transmitted from the outside of the vehicle to an occupant chamber side can be absorbed, so that noise can be suppressed so as not to transmit to the occupant chamber. COPYRIGHT: (C)2007,JPO&INPIT
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