发明名称 |
Process for obtaining superabsorbent polymers for water and aqueous fluids as aggregates of particles |
摘要 |
<p>Prepn. of super-absorbent polymer (A) in the form of a powder of agglomerates of spherical particles comprises agglomerating fine (A) particles using as agglomerating agent (B) an aq. soln. (C) of a monomer (I), suspended in a liq. hydrocarbon that is a non-solvent for both (A) and (B). (C) is introduced into the liq. hydrocarbon at the polymerisation temp. of (I); (I) is 50-200 wt.% w.r.t. (A) and (C) also includes a hydrophilic additive, i.e. a thickener (D) and a surfactant (E) of HLB 8 or more.</p> |
申请公布号 |
EP0742231(A1) |
申请公布日期 |
1996.11.13 |
申请号 |
EP19960400755 |
申请日期 |
1996.04.05 |
申请人 |
ELF ATOCHEM S.A. |
发明人 |
COLLETTE, CHRISTIAN;HIDALGO, MANUEL;KOWALIK, ANDRE;PUCHOIS, EMMANUEL;REBRE, SHU-RONG |
分类号 |
B01J20/26;A61L15/60;C08F2/18;C08F2/32;C08F265/02;C08J3/12;(IPC1-7):C08F2/32 |
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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