发明名称 |
Lydabsorberende film |
摘要 |
Sound absorbing material for use in rooms inside buildings. The material comprises a continuous polymeric film (11) having smooth surfaces, said film having a thickness (t) of about 0.1 to 0.3 mm. The film is provided with numerous substantially parallel discontinuous microslits (12) with a degree of perforation of from 0.3-3%. The microslits are cut with laser devices to produce a highly smooth and level surface. The film is tensioned in a frame (16) with a level film surface or curved film surface. |
申请公布号 |
NO20140549(A1) |
申请公布日期 |
2015.10.30 |
申请号 |
NO20140000549 |
申请日期 |
2014.04.29 |
申请人 |
DEAMP AS;MLT - MICRO LASER TECHNOLOGY GMBH;NOVOFOL KUNSTSTOFFPRODUKTE GMBH & CO KG;ACOUSTIC GRG PRODUCTS LTD;SKELLY AND COUCH LTD |
发明人 |
CIRSTEA SILVIA;TOULSON EDWIN ROBERT;FLØTRE BJØRN ANDRÉ |
分类号 |
G10K11/162;E04B1/84;E04B9/04 |
主分类号 |
G10K11/162 |
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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