发明申请
US20100055460A1 HIGHLY DISPERSIBLE FINE POWDER OF ALKALINE EARTH METAL CARBONATE AND PROCESS FOR PRODUCING THE SAME
审中-公开
碱性金属碳酸盐的高度分散的精细粉末及其生产方法
- 专利标题： HIGHLY DISPERSIBLE FINE POWDER OF ALKALINE EARTH METAL CARBONATE AND PROCESS FOR PRODUCING THE SAME
- 专利标题（中）： 碱性金属碳酸盐的高度分散的精细粉末及其生产方法
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申请号： US12530936申请日： 2008-03-12
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公开(公告)号： US20100055460A1公开(公告)日： 2010-03-04
- 发明人: Yojiro Ichimura , Takashi Watanabe , Fumio Okada , Naoki Funabashi
- 申请人： Yojiro Ichimura , Takashi Watanabe , Fumio Okada , Naoki Funabashi
- 申请人地址： JP Ube-shi, Yamaguchi
- 专利权人： UBE MATERIAL INDUSTRIES, LTD.
- 当前专利权人： UBE MATERIAL INDUSTRIES, LTD.
- 当前专利权人地址： JP Ube-shi, Yamaguchi
- 优先权： JP2007-063765 20070313; JP2007-085119 20070328
- 国际申请： PCT/JP2008/054499 WO 20080312
- 主分类号： B32B5/16
- IPC分类号： B32B5/16 ; C01F11/18
摘要：
A fine alkaline earth metal carbonate powder showing high dispersibility, in which the alkaline earth metal carbonate is selected from the group consisting of strontium carbonate and barium carbonate, can be prepared by a process comprising the steps of pulverizing a powder of strontium carbonate or barium carbonate in an aqueous medium using ceramic beads having a mean diameter of 10 to 1,000 μm in the presence of a polymer comprising a polycarboxylic acid or anhydride thereof having a side chain of a polyoxyalkylene group, and drying the pulverized powder.
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