| 发明名称 |
METHOD FOR PRODUCING WATER-ABSORBENT POLYMER PARTICLES WITH A HIGHER PERMEABILITY BY POLYMERIZING DROPLETS OF A MONOMER SOLUTION |
| 摘要 |
A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm. |
| 申请公布号 |
US2014302321(A1) |
申请公布日期 |
2014.10.09 |
| 申请号 |
US201414266367 |
申请日期 |
2014.04.30 |
| 申请人 |
BASF SE |
发明人 |
Stueven Uwe;Weismantel Matthias;Heide Wilfried;Krüger Marco;Seidl Volker;Blei Stefan;Lösch Dennis;Funk Rüdiger;Hillebrecht Annemarie |
| 分类号 |
B01J10/00;C08F220/06 |
主分类号 |
B01J10/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for preparing water-absorbing polymer beads comprising polymerizing droplets of a monomer solution comprising
a) at least one ethylenically unsaturated monomer, b) at least one crosslinker, c) at least one initiator, and d) water,in a gas phase surrounding the droplets, wherein a water-insoluble inorganic salt is suspended in the monomer solution and the polymer beads have a mean diameter of at least 150 μm. |
| 地址 |
Ludwigshafen DE |
