发明名称 |
PROCESS FOR THE CONTROL OF PITCH |
摘要 |
<p>The present invention relates to a process for the control of pitch in an aqueous medium by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20 °C, to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, the use of the surface-reacted natural calcium carbonate for pitch control, as well as to a combination of a surface-reacted natural calcium carbonate and talc for pitch control, and the resulting composites.</p> |
申请公布号 |
EP2137350(B1) |
申请公布日期 |
2014.10.29 |
申请号 |
EP20080718056 |
申请日期 |
2008.03.19 |
申请人 |
OMYA INTERNATIONAL AG |
发明人 |
GANTENBEIN, DANIEL;SCHÖLKOPF, JOACHIM;GANE, PATRICK A.C. |
分类号 |
D21C9/08;D21H17/67;D21H21/02 |
主分类号 |
D21C9/08 |
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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