Patent ID: 8464830

Claim:
A soundproof material for vehicle, comprising: a first sound absorbing material to be located facing a vehicle room interior side; a second sound absorbing material to be located facing a vehicle room exterior side; and an air-impermeable material having hot-melts located on both sides thereof; wherein said first sound absorbing material, said air-impermeable material and said second sound absorbing material are laminated in this order, and closely-located between two heating boards having through holes to melt said hot-melts by supplying hot air to said through holes and form a laminate, said laminate is press molded and a first flatly press crushed part and a second flatly press crushed part are shaped respectively by flatly crushing an outer periphery of an area where trimming of a hole is to be performed and an inner periphery of an area where trimming of a product outer shape is to be performed by a mold clamping force, said first sound absorbing material is compressed-air compressed via said air impermeable material by supplying compressed gas to said second sound absorbing material through either one of a upper mold or a lower mold in a state escape of the compressed gas supplied in said laminate is prevented by said flatly crushed parts, and evacuating air in said first sound absorbing material outside said molds through evacuating holes formed in other one of said upper mold or said lower mold, thereby integrally bonding and forming said first sound absorbing material, said air-impermeable material and said second sound absorbing material.