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ADHESIVE SHEET, METALLIC FOIL WITH ADHESIVE, MULTILAYER BOARD COVERED WITH METALLIC FOIL, AND LAYERED BOARD AND PRINTED CIRCUIT BOARD COVERED WITH METALLIC FOIL
ADHESIVE SHEET, METALLIC FOIL WITH ADHESIVE, MULTILAYER BOARD COVERED WITH METALLIC FOIL, AND LAYERED BOARD AND PRINTED CIRCUIT BOARD COVERED WITH METALLIC FOIL
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机译:胶粘剂板,带胶粘剂的金属箔,覆有金属箔的多层板以及覆有金属箔的多层板和印制电路板
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摘要
PROBLEM TO BE SOLVED: To prepare the subject sheet having little deterioration of insulating properties with the laps of time and capable of being used for producing multilayer board covered with a metallic foil by compounding a thermosetting resin and an electrically insulating whisker as essential components. ;SOLUTION: This sheet is obtained by forming an adhesive comprising (A) a thermosetting resin (e.g. a bisphenol A novolak-type epoxy resin) and (B) an electrically insulating whisker as essential components into a sheet, and has a melt viscosity in the range of 100-1000 Pa.s. Further, the component B preferably has an average diameter of 0.3-3.0 μm, an average length of 3-20 μm and the maximum length of 50 μm, and, for example, aluminum borate whisker is used for the purpose.;COPYRIGHT: (C)1999,JPO
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