| 发明名称 |
TREATED GYPSUM WALLBOARD PAPER |
| 摘要 |
<p>TREATED GYPSUM WALLBOARD PAPER Drying oils are used to improve strength and durability characteristics of gypsum wallboard paper with many unexpected additional advantages. Applied before board manufacture, critical porosity characteristics are left uninterrupted. Applied after board manufacture, shear strengths are obtained beyond expectations.</p> |
| 申请公布号 |
CA1077317(A) |
申请公布日期 |
1980.05.13 |
| 申请号 |
CA19780309155 |
申请日期 |
1978.08.11 |
| 申请人 |
NATIONAL GYPSUM COMPANY |
发明人 |
KOLE, DONALD R.;KOSSUTH, DONALD A. |
| 分类号 |
E04F13/14;B32B13/08;D21H17/02;D21H17/38;D21H17/48;D21H19/10;D21H27/22;E04C2/04;(IPC1-7):21H3/00;21D3/00 |
主分类号 |
E04F13/14 |
| 代理机构 |
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代理人 |
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