| 摘要 |
PROBLEM TO BE SOLVED: To provide a single liquid type coating agent for both light curing and moisture curing excelling in moisture resistance and an insulating property for an electric-electronic component, and working efficiency; a high-reliability electric-electronic component subjected to an insulating treatment; and its manufacturing method. SOLUTION: This single liquid type coating agent for both light curing and moisture curing is prepared by subjecting, to photopolymerizing (meta) acryloyl group denaturation, 50-90% of an end NCO cardinal number of polyurethane prepolymer obtained by reacting (a) an organic polyisocyanate component with (b) polyester polyol containing, as a copolymerization constituent, at least one kind of dimer acid, dimer diol and substances obtained by hydrogenating them, and having a number average molecular weight not larger than 8,000 to set an NCO/OH ratio of (a)/(b) to 1.8-2.3. A manufacturing method of an electronic component is composed by applying the single liquid type coating agent for both light curing and moisture curing to an electric-electronic component and curing it. COPYRIGHT: (C)2008,JPO&INPIT
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