| 发明名称 | Waterproof sound-transmitting membrane and electrical product | ||
| 摘要 | Provided is a waterproof sound-transmitting membrane 1 including: a solid resin film 2 having a plurality of through holes 21 formed therein; and a treatment layer 3 having water repellency and formed on at least one of two surfaces of the resin film 2 that are opposite to each other in the thickness direction. The treatment layer 3 has openings 31 at positions corresponding to the through holes 21. The air permeability of the waterproof sound-transmitting membrane 1 is 100 seconds/100 mL or less in terms of Gurley number. | ||
| 申请公布号 | US9171535(B2) | 申请公布日期 | 2015.10.27 |
| 申请号 | US201114001981 | 申请日期 | 2011.12.15 |
| 申请人 | Nitto Denko Corporation | 发明人 | Abe Yuichi;Karube Yuki;Furuyama Satoru |
| 分类号 | G10K11/00;H04R1/08;B32B27/00;H04M1/18 | 主分类号 | G10K11/00 |
| 代理机构 | Hamre, Schumann, Mueller & Larson, P.C. | 代理人 | Hamre, Schumann, Mueller & Larson, P.C. |
| 主权项 | 1. A waterproof sound-transmitting membrane comprising: a solid resin film having a plurality of through holes that are straight holes having a constant cross-sectional shape, the plurality of through holes extending through the solid resin film along a straight line in a thickness direction of the solid resin film, a density of the through holes being in a range from 1×103 holes/mm2 to 1×107 holes/mm2; and a treatment layer having water repellency, the treatment layer being formed on at least one of two surfaces of the resin film that are opposite to each other in the thickness direction, the treatment layer having openings at positions corresponding to the plurality of through holes, wherein the waterproof sound-transmitting membrane has an air permeability of 100 seconds/100 mL or less in terms of Gurley number. | ||
| 地址 | Osaka JP | ||