- 专利标题: Sound-transmitting waterproof film and method for producing same
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申请号: US15111417申请日: 2015-01-08
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公开(公告)号: US09906849B2公开(公告)日: 2018-02-27
- 发明人: Yoshiharu Kato , Katsumi Sakamoto , Yoshiyuki Yamada , Naoya Kishimoto
- 申请人: SEIREN CO., LTD.
- 申请人地址: JP Fukui
- 专利权人: Seiren Co., Ltd.
- 当前专利权人: Seiren Co., Ltd.
- 当前专利权人地址: JP Fukui
- 代理机构: Norris McLaughlin & Marcus, P.A.
- 优先权: JP2014-003834 20140113
- 国际申请: PCT/JP2015/000064 WO 20150108
- 国际公布: WO2015/105052 WO 20150716
- 主分类号: H04R1/08
- IPC分类号: H04R1/08 ; H04R1/02 ; G01H15/00
摘要:
Provided is a sound-transmitting waterproof film having waterproof performance and stable sound-transmitting performance in a wide tonal range. The sound-transmitting waterproof film includes a porous film of a synthetic resin, and has a water pressure resistance of 10 to 400 kPa in accordance with a JIS L 1092 method B (a high water pressure method) and has an acoustic loss of less than 10 dB at a frequency of 1 kHz, an acoustic loss of less than 5 dB at a frequency of 2 kHz, and an acoustic loss of less than 5 dB at a frequency of 5 kHz in sound-transmitting performance tests.
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