发明名称 |
Process for the continuous production of superabsorbent polymers from PAN emulsions |
摘要 |
A process for producing a superabsorbent polymer is described. The process that entails a continuous hydrolysis of an aqueous emulsion of crosslinked or uncrosslinked polyacrylonitrile in the form of fine particles is carried out in a cascade of stirred tanks. The reaction with alkali-hydroxide solution an aqueous-alcoholic medium at 60 to 100° C. yields polymers that are suitable for the preparation of hygiene products, water-storing materials in agriculture, and sheathing of electrical cables. |
申请公布号 |
US6590040(B2) |
申请公布日期 |
2003.07.08 |
申请号 |
US20010878553 |
申请日期 |
2001.06.11 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
SACKMANN GUENTER;MEYER ROLF-VOLKER;SCHAPOWALOW SERGEI;BAYBURDOV TELMAN;NAKONETSCHNY JGOR |
分类号 |
A61F13/53;A61F5/44;A61F13/15;A61F13/49;A61L15/00;C08F8/12;C08J5/00;H01B7/282;(IPC1-7):C08F20/44;C08F120/44 |
主分类号 |
A61F13/53 |
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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