基本信息:
- 专利标题： An anionic nanocomposite for use as a retention and drainage aid in papermaking
- 专利标题（中）：用作造纸助留助滤剂阴离子纳米复合材料
- 申请号：EP04014887.6 申请日：1999-06-17
- 公开(公告)号：EP1460041A2 公开(公告)日：2004-09-22
- 发明人： Begala, Arthur James , Keiser, Bruce A.
- 申请人： NALCO CHEMICAL COMPANY
- 申请人地址： One Nalco Center Naperville Illinois 60563-1198 US
- 专利权人： NALCO CHEMICAL COMPANY
- 当前专利权人： NALCO CHEMICAL COMPANY
- 当前专利权人地址： One Nalco Center Naperville Illinois 60563-1198 US
- 代理机构： Müller-Boré & Partner Patentanwälte
- 优先权： US123877 19980728
- 主分类号： C01B33/14
- IPC分类号： C01B33/14 ; D21H17/69
摘要：
According to the present invention, there is provided an anionic nanocomposite for use as a retention and drainage aid in papermaking obtainable by a process comprising the steps of:
a) providing a sodium silicate solution;
b) adding an anionic polyelectrolyte to the sodium silicate solution; and
c) combining the sodium silicate solution containing the anionic polyelectrolyte with silicic acid, wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by adding the silicic acid to the solution or wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by generating the silicic acid in situ by adding a solution of sodium silicate, also containing an anionic polyelectrolyte or the two can be added separately, to a weak acid ion exchange resin in the hydrogen form.
摘要（中）：
a) providing a sodium silicate solution;
b) adding an anionic polyelectrolyte to the sodium silicate solution; and
c) combining the sodium silicate solution containing the anionic polyelectrolyte with silicic acid, wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by adding the silicic acid to the solution or wherein the silicic acid is combined with the sodium silicate solution containing the anionic polyelectrolyte by generating the silicic acid in situ by adding a solution of sodium silicate, also containing an anionic polyelectrolyte or the two can be added separately, to a weak acid ion exchange resin in the hydrogen form.
。根据本发明，在纳米复合阴离子提供用作通过包括以下步骤的方法在造纸可获得的一助留助滤剂：a）提供一种硅酸钠溶液; b）向阴离子聚电解质的硅酸钠溶液; 及c）将硅酸钠溶液，其中含有阴离子聚电解质与硅酸，worin硅酸与硅酸钠溶液通过将硅酸溶液或worin硅酸含阴离子聚电解质组合与硅酸钠结合 含有通过添加硅酸钠溶液就地生成的硅酸溶液的阴离子聚电解质，所以在阴离子聚电解质含有或二者可以单独地加入，以在氢形式的弱酸离子交换树脂。
公开/授权文献:
IPC结构图谱:
| C | 化学；冶金 |
| --C01 | 无机化学 |
| ----C01B | 非金属元素；其化合物 |
| ------C01B33/00 | 硅；其化合物 |
| --------C01B33/08 | .含卤素的化合物 |
| ----------C01B33/12 | ..硅石；其水合物，如勒皮硅酸 |
| ------------C01B33/14 | ...胶体硅石，如分散体、凝胶、溶胶 |