VARNISH COMPOSITION, AND PREPREG AND METAL FOIL-CLAD LAMINATE USING THE SAME

PROBLEM TO BE SOLVED: To provide a metal foil-clad laminate exhibiting good drill workability; and to provide a prepreg using the same.SOLUTION: In the prepreg prepared by impregnating a glass woven fabric or a glass nonwoven fabric with a vanish containing a thermosetting resin and an inorganic fil...

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Bibliographische Detailangaben
Hauptverfasser:	SHIMAOKA SHINJI, KATO AKIRA, OSE MASAHISA, AITSU SHUJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS AS ADHESIVES WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a metal foil-clad laminate exhibiting good drill workability; and to provide a prepreg using the same.SOLUTION: In the prepreg prepared by impregnating a glass woven fabric or a glass nonwoven fabric with a vanish containing a thermosetting resin and an inorganic filler, and drying to make a semicured state, the filling rate of the inorganic filler is 40 to 70 wt.% of the total resin component of the vanish, and ≥50 wt.% of the inorganic filler is a synthetic spherical silica having an average particle diameter of 0.4 to 0.7 μm. There is also provided the metal foil-clad laminate.