发明名称 |
Water-proof sound-transmitting membrane, method for producing water-proof sound-transmitting membrane, and electrical appliance using the membrane |
摘要 |
A water-proof sound-transmitting membrane 10 includes a polytetrafluoroethylene porous membrane 1 and has a surface density of 1 to 20 g/m2. The polytetrafluoroethylene porous membrane 1 includes a first porous layer 1a, and a second porous layer 1b stacked on and integrated with the first porous layer 1a by a binding force acting between polytetrafluoroethylene matrices. |
申请公布号 |
US8695812(B2) |
申请公布日期 |
2014.04.15 |
申请号 |
US20080669305 |
申请日期 |
2008.07.11 |
申请人 |
HORIE YURI;FURUUCHI KOUJI;NITTO DENKO CORPORATION |
发明人 |
HORIE YURI;FURUUCHI KOUJI |
分类号 |
B01D39/00;B01D29/00;G10K11/00 |
主分类号 |
B01D39/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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