ACTIVE ENERGY RAY-CURING HOT MELT URETHANE RESIN COMPOSITION, AND MEMBER FOR ELECTRONIC DEVICE AND PACKING USING THE SAME

PROBLEM TO BE SOLVED: To provide an active energy ray-curing hot melt urethane resin composition, which has the hot melt property and a rapid curability by irradiation with ultraviolet rays or the like, and is excellent in shape retainability, flexibility, mechanical strength, hydrolysis resistance,...

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Bibliographische Detailangaben
Hauptverfasser:	HIGUCHI DAICHI, KANEKAWA YOSHINORI, SAKAMOTO TAMOTSU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY COMPOSITIONS BASED THEREON CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PISTONS SEALINGS THEIR PREPARATION OR CHEMICAL WORKING-UP THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an active energy ray-curing hot melt urethane resin composition, which has the hot melt property and a rapid curability by irradiation with ultraviolet rays or the like, and is excellent in shape retainability, flexibility, mechanical strength, hydrolysis resistance, adhesivity to a substrate, and outgassing, due to the improvement in the compatibility of a polyol.SOLUTION: The active energy ray-curing hot melt urethane resin composition includes a (meth)acryloyl group-terminated hot melt urethane (X) and an active energy ray polymerization initiator (Y). The (meth)acryloyl group-terminated hot melt urethane (X) is prepared by reacting (A) a polyol containing (a1) an aromatic polyester polyol containing ≥90 mol% of a glycol having a 2,2-dimethyl-1,3-propylene group in glycol components, (a2) a polyol other than the (a1) and the below (a3), and (a3) a bisphenol A-containing polyester polyol with (B) a polyisocyanate to thereby obtain (C) an NCO group-terminated urethane prepolymer, and making >50% and ≤100% of the total number of NCO groups thereof into terminal (meth)acryloyl groups by (D) a reactive functional group-containing (meth)acrylic compound to thereby obtain the (meth)acryloyl group-terminated hot melt urethane (X).