发明名称 |
CATIONIC POLYMER-MODIFIED SILICA DISPERSION AND PRODUCTION PROCESS FOR THE SAME |
摘要 |
Provided is a cationic polymer-modified silica dispersion which comprises silica fine particles having an average particle diameter of less than 200 nm and a cationic polymer and which does not bring about coagulation of the silica particles. The above dispersion sion which is diluted to a solid concentration of 1.5% by weight is characterized by having a light scattering index (n value) of 2.0 or more. The above dispersion can be produced by oppositely-colliding a mixed solution obtained by mixing silica with a cationic polymer in a polar solvent at a treating pressure of 300 kgf/cm2 or more or passing it through an orifice under a condition that a pressure difference between the inlet side and the outlet side of the orifice is 300 kgf/cm2 or more.
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申请公布号 |
CA2293087(A1) |
申请公布日期 |
2000.06.24 |
申请号 |
CA19992293087 |
申请日期 |
1999.12.23 |
申请人 |
TOKUYAMA CORPORATION |
发明人 |
ISHIZU, KENICHI;FUKUNAGA, KENJI;KONO, HIROYUKI;TAGASHIRA, YOSHINORI |
分类号 |
B01F17/52;B41M5/00;B41M5/52;C01B33/14;C01B33/149;(IPC1-7):B01F17/18;D21H19/42 |
主分类号 |
B01F17/52 |
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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