Method for producing modified silica, resin composition for insulation material and film for insulation film



<P>PROBLEM TO BE SOLVED: To provide a method for producing a modified silica by which the modified silica having excellent dispersibility when compounded in a polymer such as a cyclic olefin polymer can be produced. <P>SOLUTION: The method for producing the modified silica includes mixing silica surface-treated with an epoxy group-containing silane coupling agent, with the cyclic olefin polymer having a functional group selected from a carboxy group, a carboxylic anhydride group and a hydroxyphenyl group, in a solvent. Preferably, the volume-averaged particle diameter of the silica surface-treated with the epoxy group-containing silane coupling agent is ≤1 μm. <P>COPYRIGHT: (C)2011,JPO&INPIT
【課題】環式オレフィン重合体などの重合体に配合した場合の分散性に優れる変性シリカを与えることができる、変性シリカの製造方法を提供する。 【解決手段】エポキシ基含有シランカップリング剤で表面処理されたシリカと、カルボキシル基、カルボン酸無水物基、およびヒドロキシフェニル基から選択される官能基を有する環式オレフィン重合体と、を溶媒中で混合する変性シリカの製造方法。エポキシ基含有シランカップリング剤で表面処理されたシリカの体積平均粒径は1μm以下であることが好ましい。 【選択図】なし




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    JP-2011042717-AMarch 03, 2011Sumitomo Bakelite Co Ltd, 住友ベークライト株式会社Functional particle, filler, resin composition for electronic part, electronic part, and semiconductor device
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    JP-2013249330-ADecember 12, 2013Canon Inc, キヤノン株式会社Molded article and method of producing the same