发明名称 |
PROCESS FOR PRODUCING SUPERABSORBENTS |
摘要 |
The invention relates to a process for producing superabsorbents, comprising the preparation of partly neutralized acrylic acid by the steps (i) preparing an over-neutralized acrylic acid having a degree of neutralization of at least 100.1 mol-% by mixing of an acrylic acid 1 and a base and (ii) preparing a neutralized acrylic acid having a degree of neutralization from 50 to 85 mol-% by mixing of the over-neutralized acrylic acid and an acrylic acid 2, wherein the content of dimeric acrylic acid in the acrylic acid 2 is lower than the content of dimeric acrylic acid in the acrylic acid 1. |
申请公布号 |
WO2017021167(A1) |
申请公布日期 |
2017.02.09 |
申请号 |
WO2016EP67411 |
申请日期 |
2016.07.21 |
申请人 |
BASF SE |
发明人 |
HERFERT, Norbert;POOMSUWAN, Wanthip;GIEGER, Thomas |
分类号 |
C08F2/01;A61L15/22;A61L15/60;C08F2/10;C08L33/02 |
主分类号 |
C08F2/01 |
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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