发明名称 |
Trim board |
摘要 |
A fiber-cement trim board is formed by a fiber-cement core layer faced with a pair of fiber-cement surface layers of substantially equal thickness in the core layer and have a cement-to-wood ratio by weight of between 2 and 3.5 and at least 70% of the wood strands have a length longer than 10 min. Each of the surface layers is formed of a fiber-cement mixture containing wood strands, at least 80% of which have a length of less than 4 mm and a cement-to-wood ratio by weight of between 2 and 3.5. The board is covered at least on the two main faces by a water barrier coating.
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申请公布号 |
US5693409(A) |
申请公布日期 |
1997.12.02 |
申请号 |
US19960743956 |
申请日期 |
1996.10.22 |
申请人 |
MACMILLAN BLOEDEL LIMITED |
发明人 |
GNATOWSKI, MAREK JAN;LAU, KENNETH KWOK-CHEUNG;ROGERSON, DOUGLAS ELLIOT |
分类号 |
B32B13/02;(IPC1-7):B32B9/00 |
主分类号 |
B32B13/02 |
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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