| abstract |
An embodiment of the present invention is a polyurethane foam comprising 35% to 40% by weight of petroleum resin, 10% to 14% by weight of polyester elastomer resin, 10% to 14% by weight of ethylene vinyl acetate resin, 14% By weight of a polyester polyol, 15 to 21% by weight of a polyester polyol, 8 to 10% by weight of methylene diphenyl diisocyanate and 0.1 to 0.5% by weight of an amine catalyst, and has a melt viscosity of 20,000 cps 50,000 cps. ≪ / RTI > An object of the present invention is to provide a curable composition having excellent initial adhesion, initial adhesion, tack and heat resistance, excellent workability at the same time, excellent foam resistance and crosslinkability after final curing, excellent effect of shortening curing time, It is possible to provide a hot-melt adhesive composition excellent in impact resistance. |