发明名称 |
Use of at least partly neutralised polyacrylic acid with a mol. wt. of 5000-30000 containing alkylthio end groups, as an auxiliary material for the wet-milling of calcium carbonate |
摘要 |
<p>The use of polyacrylic acid (I) with an average mol. wt. (M w) of 5000-30000 and with end groups containing sulfur and at least 2 carbon atoms, which is at least partly neutralised with alkali metal hydroxide or ammonia, as auxiliary material for the wet-milling of calcium carbonate. Independent claims are also included for finely-divided suspensions of CaCO 3 containing 0.1-2 wt% (I), obtained by wet-milling in presence of (I).</p> |
申请公布号 |
DE10311617(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
DE2003111617 |
申请日期 |
2003.03.14 |
申请人 |
BASF AG |
发明人 |
MICHL KATHRIN;GOTSCHE MICHAEL;RIEGER JENS;SCHMIDT KATI |
分类号 |
B02C23/06;C01F11/18;(IPC1-7):C08J3/00;C08L33/02;C08K3/26;B01F17/00;C09D1/10;C09C1/02 |
主分类号 |
B02C23/06 |
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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