| 摘要 |
PROBLEM TO BE SOLVED: To provide an inorganic filler having excellent insulation reliability and a prepreg. SOLUTION: The inorganic filler is surface-treated with a silane coupling agent composition containing a compound represented by formula [1] (wherein R<SB>1</SB>is independently hydrogen, a methyl group or an ethyl group; R<SB>2</SB>is an alkoxy group; R<SB>3</SB>is independently an alkoxy group, a hydroxyl group, a methyl group or an ethyl group; and n is an integer of 1-3). COPYRIGHT: (C)2010,JPO&INPIT
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