| 发明名称 |
GYPSUM PLATE AND METHOD FOR MAKING THEREOF |
| 摘要 |
An anhydrous gypsun paper board having a hydration rate of 30-100% and a length changing rate of 0.12% or less comprises 98-60 wt.% of II-type anhydrous gypsum, 2-40 wt.% of short fibers, e.g. asbestos and 0.3-2.5 wt.% of hardening accelerator. A curing of a green paper board is carried out at the temp. of 0-22≦̸C and humidity of 50-100%.
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| 申请公布号 |
KR890003925(B1) |
申请公布日期 |
1989.10.12 |
| 申请号 |
KR19870001387 |
申请日期 |
1987.02.19 |
| 申请人 |
ASANO SLATE LTD. |
发明人 |
NAGAOKA HIDEMIZ;HASEGAWA DOSIO;YOSIDA DOORU;OGA WARAMAMORO;HADO YOSINORI;ASADA YASHARU;SINOSAKI THDOMU |
| 分类号 |
C04B28/00;(IPC1-7):C04B28/00 |
主分类号 |
C04B28/00 |
| 代理机构 |
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代理人 |
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