| 发明名称 |
Silica-based sols |
| 摘要 |
An aqueous sol containing silica-based particles which sol has a specific surface area of at least 115 m2/g aqueous sol and a pH of at least 10.5, and an S-value within the range of from 10 to 45% and/or contains silica-based particles having a specific surface area of at least 550 and less than about 1200 m2/g SiO2, and wherein the sol is substantially free from aluminium. |
| 申请公布号 |
US8835515(B2) |
申请公布日期 |
2014.09.16 |
| 申请号 |
US201113079346 |
申请日期 |
2011.04.04 |
| 申请人 |
Akzo Nobel, N.V. |
发明人 |
Persson Michael;Tokarz Marek;Dahlgren Maj-Lis;Johansson-Vestin Hans Erik |
| 分类号 |
C01B33/113;C01B33/14;C01B33/146;D21H17/68;D21H21/10;C01B33/143;C01B33/141;B01F3/12;D21H17/37;D21H17/45;D21H17/29 |
主分类号 |
C01B33/113 |
| 代理机构 |
|
代理人 |
Morriss Robert C. |
| 主权项 |
1. An aqueous sol containing silica-based particles wherein the sol has a specific surface area of at least 115 m2/g aqueous sol, thereby representing the specific surface area that is available per gram of aqueous silica-based sol, said silica-based particles have a specific surface area within the range of from 550 m2/g SiO2 and less than about 1200 m2/g SiO2, thereby representing the average specific surface area of the silica-based particles present in the sol, wherein the specific surface area is determined by means of titration with NaOH after removal of or adjustment for any compounds present that may disturb the titration, wherein the sol has a pH of at least 10.5, and wherein the sol is substantially free from aluminium. |
| 地址 |
Arnhem NL |
