发明名称 |
Foamed composite panel with improved acoustics and durability |
摘要 |
<p>An acoustical panel formed from a fibrous, open-celled material comprised of up to about 50% by weight fibers, between about 3% and about 10% by weight binder, between about 20% and about 75% by weight filler and about 0.01% to about 2.0% by weight surfactant. Additionally, voids are formed within the panel having an average distribution size diameter of about 50 mu m to about 250 mu m. The acoustic panel achieves very high sound absorption properties without the need for additional surface perforations, while maintaining a very high surface hardness. <IMAGE></p> |
申请公布号 |
EP1094164(B1) |
申请公布日期 |
2008.12.10 |
申请号 |
EP20000122611 |
申请日期 |
2000.10.17 |
申请人 |
ARMSTRONG WORLD INDUSTRIES, INC. |
发明人 |
HALLETT, CHESTER W.;FELEGI, JOHN, JR.;FRY, WILLIAM F.;NUTE, ERNEST B., JR.;LEWIS, ROBERT D.;ADEY, ALFRED H. |
分类号 |
E04B1/86;B29C67/24;C04B26/02;E04B1/84 |
主分类号 |
E04B1/86 |
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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