发明名称 |
Method of preparation of surface crosslinked resin particles |
摘要 |
<p>The invention is surface crosslinked particles of water absorbing resin comprising particles of a carboxyl containing water-absorbent resin; characterized in that the particles of the carboxyl containing water-absorbent resin are crosslinked at or near the particle surface by a polyhydroxy compound capable of reacting with the carboxyl moieties of the water-absorbent resin, further characterized in that the particles have coated on or bound to the surface a nonionic surfactant having an HLB of from 3 to 10. Additionally a process for the preparation of such surface crosslinked and surfactant coated absorbent resin particles is disclosed. Further disclosed is a water-absorbent structure comprising a synthetic or natural fiber or paper based woven or nonwoven carrier structure and surface crosslinked and surfactant coated water-absorbent resin particles of this invention.</p> |
申请公布号 |
EP0509708(B2) |
申请公布日期 |
2004.11.24 |
申请号 |
EP19920303110 |
申请日期 |
1992.04.08 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
GARTNER, HERBERT;BURGERT, JOSEF |
分类号 |
B01J20/26;A61L15/48;A61L15/60;C08F8/00;C08F8/14;C08J3/12;C08J3/24;C08L33/02;(IPC1-7):C08F8/14;A61L15/00 |
主分类号 |
B01J20/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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