发明名称 |
A durable porous article of manufacture and a process to produce same |
摘要 |
An acoustically absorbent porous panel formed from a cured aqueous foamed cementitious material comprising on a wet basis of about 53% to about 68% by weight cement, about 17% to about 48% by weight water, about 0.05% to about 5% by weight fiber, and about 0.01% to about 10% by weight surfactant. The panel also has pores distributed within the cured material comprising about 75% to about 95% by volume of the material. The cement-based, foamed panel provides good acoustical performance with enhanced durability and moisture resistance. <IMAGE> |
申请公布号 |
EP1088799(A3) |
申请公布日期 |
2003.12.03 |
申请号 |
EP20000120752 |
申请日期 |
2000.09.22 |
申请人 |
ARMSTRONG WORLD INDUSTRIES, INC. |
发明人 |
PUTT, DEAN L.;STALKER BISHEL, MARSHA;WIKER, ANTHONY L.;MOSER, ANDREA M. |
分类号 |
B28B5/02;B28C5/38;B32B13/04;C04B28/00;C04B28/02;C04B28/14;C04B38/10;E04B1/84;E04B1/86;E04B9/00;E04B9/04;E04C5/07;G10K11/162 |
主分类号 |
B28B5/02 |
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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