| 发明名称 |
Process for preparing crosslinked water absorbent resins |
| 摘要 |
This invention is directed to a recurring polymeric moiety of the following formula: <IMAGE> wherein R is independently selected from hydrogen and C1 to C4 alkyl; Y is independently selected from O and NH; and X is independently selected from Cl, F, Br, I, NO3, HSO4 and H2PO4. Polymers of the above structure may be crosslinked by treating the polymer with a base and heating it.
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| 申请公布号 |
US5478894(A) |
申请公布日期 |
1995.12.26 |
| 申请号 |
US19930086966 |
申请日期 |
1993.07.02 |
| 申请人 |
HOECHST CELANESE CORPORATION |
发明人 |
CHIANG, WILLIAM G.;MCCRICKARD, JOY L. |
| 分类号 |
C08F220/06;A61L15/60;C08F8/00;C08F8/08;C08F20/22;C08F20/26;C08F20/38;C08F220/04;C08F220/22;C08F220/28;C08F220/38;(IPC1-7):C08F8/42 |
主分类号 |
C08F220/06 |
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