| 发明名称 |
TREATMENT OF WALLBOARD EDGES TO CONTROL RATE OF WATER EVAPORATION |
| 摘要 |
<p>This invention relates to wallboard and a method that is useful in protecting the edges of wallboard, such as gypsum wallboard, from burning while being passed through the drier on the wallboard production line. The method involves coating the edges of the wallboard with a coating that is at least semi-permeable to the transmission of water vapour.</p> |
| 申请公布号 |
CA1048869(A) |
申请公布日期 |
1979.02.20 |
| 申请号 |
CA19750224393 |
申请日期 |
1975.04.11 |
| 申请人 |
BPB INDUSTRIES LTD. |
发明人 |
LEEMING, PETER A.;MITAKIDIS, DIMITRIOS;SHORTREED, GEORGE D.;DIXON, HESKETT |
| 分类号 |
E04C2/26;(IPC1-7):04C2/26 |
主分类号 |
E04C2/26 |
| 代理机构 |
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| 地址 |
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