发明名称 |
FARBBESTÄNDIGE SUPERABSORBIERENDE POLYMERZUSAMMENSETZUNGEN |
摘要 |
A color-stable superabsorbent polymer having long-term color stability, and methods of manufacturing the polymer, are disclosed. The superabsorbent polymer is prepared using a sulfinic acid derivative, like 2-hydroxy-2-sulfinatoacetic acid, a salt thereof, or a mixture thereof, as the reducing agent in a polymerization initiator system for the preparation of a superabsorbent polymer from monomers. The resulting superabsorbent polymer resists color degradation during periods of extended storage, even at an elevated temperature and humidity. |
申请公布号 |
DE602004002202(D1) |
申请公布日期 |
2006.10.12 |
申请号 |
DE20046002202T |
申请日期 |
2004.03.19 |
申请人 |
BASF AG |
发明人 |
HERFERT, NORBERT;AZAD, M.;CARRICO, W.;WOODRUM, T.;MITCHELL, A.;KIKAMA, MA-IKAY |
分类号 |
A61L15/60;A61L15/42;C08F2/10;C08F4/40 |
主分类号 |
A61L15/60 |
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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