发明名称 |
Modified superabsorbent polymer based on polyacrylonitrile emulsions |
摘要 |
A process for modifying superabsorbent polymers is disclosed. The surface of a polymer containing hydrolyzed polyacrylonitrile in the form of particulates, is modified by crosslinking in a water/alcohol reaction mixture and in the presence of silica. The resulting product features improved absorbency under load and lesser degree of gel blocking.
|
申请公布号 |
US6288158(B1) |
申请公布日期 |
2001.09.11 |
申请号 |
US19990247748 |
申请日期 |
1999.02.09 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
SCHAPOWALOV SERGEJ;SACKMANN GüNTER;MEYER ROLF-VOLKER;KORTE SIEGFRIED |
分类号 |
A61F13/53;A61F13/49;A61L15/24;A61L15/60;B01J20/26;C08F8/00;C08F8/42;C08F20/44;C09K3/00;H01B3/42;H01B3/44;(IPC1-7):C08K3/34 |
主分类号 |
A61F13/53 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|