| 发明名称 |
Calcium silicate and process for producing same |
| 摘要 |
Globular secondary particles of wollastonite group calcium silicate crystals represented by the formula lCaO.mSiO2.nH2O wherein 1</=l</=6, 1</=m</=6 and 0</=n</=1, characterized in that the particles comprise hollow globular secondary particles of the wollastonite group calcium silicate crystals, the globular secondary particles having an average spontaneous sedimentation height of at least 800 ml, an outside diameter of 5 to 110 mu m, an average apparent density of 0.04 to 0.09 g/cm3 and an average shell density defined by the equation Y=0.0033X+B wherein Y is the average shell density, X is the average diameter of the particles, B is a constant, 15 mu m</=X</=40 mu m and 0</=B</=0.115.
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| 申请公布号 |
US4298386(A) |
申请公布日期 |
1981.11.03 |
| 申请号 |
US19790076442 |
申请日期 |
1979.09.17 |
| 申请人 |
KABUSHIKI KAISHA OSAKA PACKING SEIZOSHO |
发明人 |
KUBO, KAZUHIKO;TAKAHASHI, AKIRA;OOHASHI, KENICHI |
| 分类号 |
C01B33/24;C01B33/44;C04B28/18;C04B28/20;C04B35/22;(IPC1-7):C01B33/24;C04B21/00 |
主分类号 |
C01B33/24 |
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