发明名称 |
Method of producing swellable, non-aging starch maleates, biologically degradable starch maleates as well as use |
摘要 |
The aging of swellable starch maleates is reduced by reacting with one or more singly and/or multiply functional nucleophiles as in a Michael condensation reaction. Mixtures of mercaptoethanol and 1,2-bis-(2-mercaptoethoxy)-ethane or mixtures of sodium bisulfite and pentaerythrite-tetrakis-(2-mercaptoacetate) are preferred. The decrease of the retention capacity [SRV] in the reaction products after 100 days is preferably <10%. The products find use as biodegradable, non-aging superabsorbers.
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申请公布号 |
US6063914(A) |
申请公布日期 |
2000.05.16 |
申请号 |
US19980013649 |
申请日期 |
1998.01.26 |
申请人 |
STOCKHAUSEN GMBH & CO. KG |
发明人 |
WOLF, HEIKO;DORN, KLAUS;EURICH, THOMAS |
分类号 |
C08B31/04;A61L15/28;A61L15/60;C08L3/06;(IPC1-7):C08B31/04 |
主分类号 |
C08B31/04 |
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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