发明名称 |
Durable edge ceiling board |
摘要 |
This invention provides a ceiling board having a durable edge portion. The durable edge portion is obtained by applying a latex composition to the edge portion. The latex composition includes a binder and filler particles of two particle size ranges. The first filler particles have a median diameter of about 0.5 micron to about 5 microns. The second filler particles have a median diameter of about 20 microns to about 300 microns. The ratio of first filler particles to second filler particles is about 2:1 to about 1:8 by weight. The binder is preferably an epoxy, a urethane, a polyester, an acrylic, a melamine, or a vinyl based polymer latex. The binder preferably has a Tg of at least 10 DEG C., and the ratio of filler to binder is about 2:1 to about 12:1 by weight.
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申请公布号 |
US6077593(A) |
申请公布日期 |
2000.06.20 |
申请号 |
US19980062297 |
申请日期 |
1998.04.17 |
申请人 |
ARMSTRONG WORLD INDUSTRIES, INC. |
发明人 |
SCHLACHTER, BARTHOLOMEW J. |
分类号 |
C04B20/00;C04B26/02;E04B9/04;E04C5/07;E04F13/00;(IPC1-7):B32B23/02 |
主分类号 |
C04B20/00 |
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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