Patent ID: 9018319
Filing Date: 2015-04-28
Classification: C08F,C08G,C09D,C09J

Abstract:
1. A radical-curable hot-melt urethane resin composition comprising 100 parts by mass of a hot-melt urethane (X) having a (meth)acryloyl group and 0.5 to 5.0 parts by mass of a radical polymerization initiator (Y), wherein the hot-melt urethane (X) is obtained by introducing, using a (meth)acrylate compound (D) having an active-hydrogen-containing group, a (meth)acryloyl group into a hot-melt urethane prepolymer (C) that has isocyanate groups at its terminals, has a melt viscosity of 500 to 5000 mPa·s at 100° C., and is obtained by a reaction of a polyol (A) and an alicyclic polyisocyanate (B), the polyol (A) containing an aliphatic polycarbonate polyol (a1), an alicyclic polycarbonate polyol (a2), or an aliphatic polyether polyol (a3), in an amount of more than 50 mol % and 100 mol % or less of the total number of isocyanate groups of the urethane prepolymer (C), wherein the polyol (A) further contains an alicyclic polyester polyol (a4).