发明名称 |
Process for the control of pitch |
摘要 |
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.
|
申请公布号 |
EP1975310(A1) |
申请公布日期 |
2008.10.01 |
申请号 |
EP20070005853 |
申请日期 |
2007.03.21 |
申请人 |
OMYA DEVELOPMENT AG |
发明人 |
GANTENBEIN, DANIEL;SCHOELKOPF, JOACHIM;GANE, PATRICK A.C. |
分类号 |
D21C9/08;D21H17/67;D21H21/02 |
主分类号 |
D21C9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|