| abstract |
One embodiment of the present invention relates to a hot melt adhesive composition comprising 35 to 40 wt% of a petroleum resin, 10 to 14 wt% of a polyester elastomer resin, 10 to 14 wt% of an ethylene-vinyl acetate resin, 14 to 19 wt% of a polyether polyol, 15 to 21 wt% of a polyester polyol, 8 to 10 wt% of diphenylmethane diisocyanate, and 0.1 to 0.5 wt% of an amine catalyst, the composition having a melt viscosity of 20,000 to 50,000cps measured at 150 ℃. The hot melt adhesive composition of the present invention has excellent initial adhesion, initial adhesive strength, initial tack and heat resistance, and at the same time, has excellent workability, exhibits excellent anti-foaming ability and crosslinking ability after curing, is effectively cured in a short time, and exhibits excellent impact resistance after curing. |