发明申请
US20140027200A1 SOUND-PROOF MATERIAL AND PROCESS FOR PRODUCTION THEREOF, SOUND-PROOF MOLDING, AND SOUND INSULATION METHOD 有权
声音材料及其生产方法,声波成型和声音绝缘方法

SOUND-PROOF MATERIAL AND PROCESS FOR PRODUCTION THEREOF, SOUND-PROOF MOLDING, AND SOUND INSULATION METHOD
摘要:
The present invention relates to a sound-proof material containing a first sound-absorbing material disposed facing a sound source, a first soft sound-insulating layer laminated on a face of the first sound-absorbing material opposite to the sound source and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower, a second sound-absorbing material laminated on the first soft sound-insulating layer, and a second soft sound-insulating layer laminated on the second sound-absorbing material and having an air permeability measured in accordance with JIS L1018 of 10 cc/cm2·sec or lower and a Young's modulus measured in accordance with JIS K7127 greater than or equal to five times that of the first soft sound-insulating layer, in which at least the second soft sound-insulating layer is partially or entirely bonded to the second sound-absorbing material.
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