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 |
US8663530(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US201213713711 |
申请日期 |
2012.12.13 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
HORIE YURI;FURUUCHI KOUJI |
分类号 |
D02J1/06;B01D35/00;B29C55/00;B29C71/00;G10K11/00 |
主分类号 |
D02J1/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|