Soundproof material for vehicle
AssigneeTakehiro Co., Ltd.
InventorsMasaki Ishikawa, Hidekimi Takahashi, Yuji Mori, Hiroyuki Honda
Life of this patent
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AssigneeTakehiro Co., Ltd.
InventorsMasaki Ishikawa, Hidekimi Takahashi, Yuji Mori, Hiroyuki Honda
Estimating the term…
A first sound absorbing material to be located facing a vehicle room interior side, the air-impermeable material having an air-impermeable film having bonding hot-melts on both sides thereof, and the second sound absorbing material to be located facing a vehicle room exterior side are laminated in this order, and are closely-located between two heating boards and are supplied with hot air to melt hot-melts and thus to make a laminate. The laminate is cold press molded with the first sound absorbing material on a lower mold, and at the same time as the press molding, compressed gas is supplied from an upper mold to apply pressure on the air-impermeable material and thus to compression mold the first sound absorbing material.
A soundproof material for vehicle, comprising:
Dependencies are inferred from the claim text.