| 发明名称 |
Aqueous suspension providing high opacity to paper |
| 摘要 |
The aqueous suspension contains hydrated n calcium sulfate (CaSO4 nH2O), the value of n ranging from 2 to 2 (0<n<2) and an additive. The method for preparing said aqueous suspension involves the following steps: a) mixing the calcium sulfate and at least one of said additives with water and b) homogenizing the mixture under strong agitation. The method for preparing the paper includes adding said aqueous suspension to the cellulose fiber suspension. |
| 申请公布号 |
AU4069801(A) |
申请公布日期 |
2001.09.24 |
| 申请号 |
AU20010040698 |
申请日期 |
2001.03.14 |
| 申请人 |
SOFAG, S.L. |
发明人 |
JOSEP MARIA GUSSINYER CANADELL |
| 分类号 |
D21H17/67;D21H17/68;D21H21/28 |
主分类号 |
D21H17/67 |
| 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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