![An anionic nanocomposite for use as a retention and drainage aid in papermaking](/ep/2006/01/25/EP1460041A3/abs.jpg.150x150.jpg)
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:EP1460041A3 公开(公告)日:2006-01-25
- 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 ; D21H21/10 ; D21H17/42 ; D21H17/47 ; D21H17/68
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.
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.
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 |