发明名称 COVER COAT COMPOSITION FOR PRINTED-WIRING BOARD
摘要 PURPOSE:To provide the title compsn. which can be obtained continuously and simply at an excellent working efficiency and has excellent heat resistance, adhesion properties, electrical characteristics and flexibility, containing a prepolymer of a polyaminobismaleimide, novolak type and bisphenol F type epoxy resins and an imidazole curing agent. CONSTITUTION:100pts.wt. prepolymer (A) of a polyaminobismaleimide is kneaded with 10-200pts.wt. novolak type epoxy resin (B), 20-200pts.wt. bisphenol F type epoxy resin (C), a 0.3-60pts.wt. imidazole curing agent (D) such as 4,4'- methylene bis(2-ethyl-5-methylimidazole), etc. and optionally, a filler (E) such as silica powder, NBR, an alcohol-soluble nylon, polyvinyl butyral, etc. (F).
申请公布号 JPS63221172(A) 申请公布日期 1988.09.14
申请号 JP19870054066 申请日期 1987.03.11
申请人 FUJIKURA LTD 发明人 NITTA KATSUNORI
分类号 H05K3/28;C09D163/00 主分类号 H05K3/28
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