发明名称 |
Process for producing inorganic oxide organosol |
摘要 |
<p>A process for producing an inorganic oxide organosol comprises the steps (A) and (B) of: (A) adding silicon alkoxide having two or more alkoxy groups bonded to a silicon atom or having one or more hydroxy groups bonded to a silicon atom and one or more alkoxy groups bonded to a silicon atom to a hydrophilic inorganic oxide sol containing a hydrophilic solvent having a boiling point (1 atm) of 100°C or less in an amount of 25 to 100% by weight in a dispersion medium to treat surface of the inorganic oxide particles in the sol; and (B) replacing the dispersion medium of the surface treated inorganic oxide sol obtained in step (A) with a non-alcoholic organic solvent in the presence of a primary alcohol having 3 to 12 carbon atoms. The process gives an inorganic oxide organosol that has a good dispersibility and a low viscosity, is excellent in transparency, and shows a good compatibility with resin solutions.</p> |
申请公布号 |
EP1544257(A3) |
申请公布日期 |
2006.01.18 |
申请号 |
EP20040029844 |
申请日期 |
2004.12.16 |
申请人 |
NISSAN CHEMICAL INDUSTRIES, LIMITED |
发明人 |
YOSHITAKE, KEIKO;KOYAMA, YOSHINARI;SUEMURA, NAOHIKO |
分类号 |
C09C3/12;C09C1/30 |
主分类号 |
C09C3/12 |
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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