发明名称 |
Method for producing alkaline earth metal carbonate crystal and alkaline earth metal carbonate crystal |
摘要 |
A method for producing an alkaline earth metal carbonate crystal comprising allowing an alkaline earth metal ion that is present at an ion concentration of 0.5 mol/L or less and a carbonate ion to react under an alkali condition to generate an alkaline earth metal carbonate crystal having an aspect ratio of 1.5 or more. An alkaline earth metal carbonate crystal produced by the method is preferably blended with an optical resin and can sufficiently reduce the birefringence and prevent deterioration of the original optical resin.
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申请公布号 |
US2005255027(A1) |
申请公布日期 |
2005.11.17 |
申请号 |
US20050107925 |
申请日期 |
2005.04.18 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
HIRAI HIROYUKI;SUGIHARA KEIKO |
分类号 |
C01F11/18;C08K3/26;C08K9/04;C08L69/00;C09C1/02;C09C3/12;(IPC1-7):C01F11/18 |
主分类号 |
C01F11/18 |
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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