发明名称 |
METHOD FOR PRODUCING SPHERICAL POLYORGANOSILSESQUIOXANE MICROPARTICLE |
摘要 |
PROBLEM TO BE SOLVED: To form monodisperse spherical microparticles even under reaction conditions in which monodisperse spherical particles can not be heretofore formed due to e.g. the agglomeration of particles in producing spherical polyorganosilsesquioxane microparticles by hydrolytically condensing an organotrialkoxysilane and/or a partial hydrolyzate thereof in a reaction solution. SOLUTION: In adding an organotrialkoxysilane and/or a partial hydrolyzate thereof to a reaction solution, a polymeric dispersant exemplified by polyvinyl alcohol is present in the reaction solution. COPYRIGHT: (C)2004,JPO
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申请公布号 |
JP2003342370(A) |
申请公布日期 |
2003.12.03 |
申请号 |
JP20020156113 |
申请日期 |
2002.05.29 |
申请人 |
NIKKO RIKA KK |
发明人 |
NEGISHI KENJI;ISHII MASANORI |
分类号 |
C08G77/06;(IPC1-7):C08G77/06 |
主分类号 |
C08G77/06 |
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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