| 发明名称 |
estrutura multicamada de absorção de som compreendendo camada de malha |
| 摘要 |
A multilayer sound absorbing structure, comprising a first microperforated film, a mesh layer and a second microperforated film disposed in this order is provided. |
| 申请公布号 |
BRPI0913579(A2) |
申请公布日期 |
2015.11.24 |
| 申请号 |
BR2009PI13579 |
申请日期 |
2009.05.06 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
MAKOTO SASAKI;MARI MONOGI;TESTSUYA NORO |
| 分类号 |
B32B5/22;B32B27/30;G10K11/16;G10K11/168 |
主分类号 |
B32B5/22 |
| 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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