| 发明名称 |
SILICA-BASED SOLS |
| 摘要 |
An aqueous sol containing silica-based particles is used as a drainage a nd retention aid in the production of paper. The sol has a specific surface are a of at least 90 m2/g aqueous sol and an S-value within the range of from 10 to 45% or contains silica-based particles having a specific surface area of less than 1000 m2/g SiO2. |
| 申请公布号 |
CA2502419(A1) |
申请公布日期 |
2000.11.09 |
| 申请号 |
CA20002502419 |
申请日期 |
2000.04.28 |
| 申请人 |
AKZO NOBEL N.V. |
发明人 |
DAHLGREN, MAJ-LIS;PERSSON, MICHAEL;JOHANSSON-VESTIN, HANS;TOKARZ, MAREK |
| 分类号 |
B01J13/00;C01B33/14;C01B33/141;C01B33/143;C01B33/146;D21H17/29;D21H17/37;D21H17/45;D21H17/68;D21H21/10;(IPC1-7):D21H17/68 |
主分类号 |
B01J13/00 |
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