| 发明名称 |
Sound-absorbing polymer foam molded article |
| 摘要 |
A polymer foam moulded part is described with an improved sound absorption capacity in the frequency range above 1,500 Hz, in which the improved sound absorption capacity is produced by perforating the surface compacted layer of the moulded part.
|
| 申请公布号 |
US2002179367(A1) |
申请公布日期 |
2002.12.05 |
| 申请号 |
US20020168419 |
申请日期 |
2002.06.21 |
| 申请人 |
BECKER ARNO;SAGEMUHL DIRK |
发明人 |
BECKER ARNO;SAGEMUHL DIRK |
| 分类号 |
G10K11/162;G10K11/172;(IPC1-7):E04B1/82 |
主分类号 |
G10K11/162 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
