EP2318464B1 PROCESS TO PREPARE PRECIPITATED CALCIUM CARBONATE IMPLEMENTING LOW CHARGE ACRYLATE AND/OR MALEINATE -CONTAINING POLYMER
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基本信息:
- 专利标题： PROCESS TO PREPARE PRECIPITATED CALCIUM CARBONATE IMPLEMENTING LOW CHARGE ACRYLATE AND/OR MALEINATE -CONTAINING POLYMER
- 专利标题（中）：用于生产沉淀碳酸钙IN丙烯酸酯和/或MALEINATHALTIGEM聚合物与低电平充电ADDITION
- 申请号：EP09786092.8 申请日：2009-08-04
- 公开(公告)号：EP2318464B1 公开(公告)日：2016-09-28
- 发明人： GANE, Patrick, Arthur, Charles , BURI, Matthias , POHL, Michael
- 申请人： Omya International AG
- 申请人地址： Baslerstrasse 42 4665 Oftringen CH
- 专利权人： Omya International AG
- 当前专利权人： OMYA INTERNATIONAL AG
- 当前专利权人地址： OMYA INTERNATIONAL AG
- 代理机构： Richebourg, Michel François
- 优先权： EP08014443 20080813; US100319P 20080926
- 国际公布： WO2010018432 20100218
- 主分类号： C09C1/02
- IPC分类号： C09C1/02 ; C01F11/18 ; C09D7/12 ; C08K3/26 ; D21H17/37 ; D21H17/67 ; D21H19/38 ; D21H19/68
摘要：
Process to prepare a precipitated calcium carbonate (PCC) comprising the following steps: (i) providing CaO, which is optionally partially or fully slaked (hereafter "calcium source"); (ii) providing a CO 2 -comprising gas; (iii) contacting said calcium source of step (i) and said CO 2 -comprising gas of step (ii) in an aqueous environment in a reactor, in one or more steps; (iv) obtaining a PCC-comprising suspension; (v) optionally concentrating said PCC-comprising suspension of step (iv); (vi) optionally adding dispersing additives to the suspension of step (iv) and/or (v); (vii) optionally grinding the product of step iv, v or vi;
公开/授权文献:
IPC结构图谱:
| C | 化学；冶金 |
| --C09 | 染料；涂料；抛光剂；天然树脂；黏合剂；其他类目不包含的组合物；其他类目不包含的材料的应用 |
| ----C09C | 纤维状填料以外的无机材料的处理以增强它们的着色或填充性能；炭黑的制备 |
| ------C09C1/00 | 纤维状填料以外的特殊无机材料的处理；炭黑的制备 |
| --------C09C1/02 | .碱土金属或镁的化合物 |