Reactive hotmelt adhesive composition
AssigneeSekisui Chemical Co., Ltd.
InventorsMitsuo Nagata, Toshiyuki Adachi, Masatoshi Asakura
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Abstract
A reactive hotmelt adhesive composition comprising a urethane prepolymer having an isocyanate group at each end and obtained by reacting a diisocyanate with a polyolefin diol having a hydroxyl group at each end, and a tackifier substantially unreactive with the urethane prepolymer and compatible therewith.
Claims7
A reactive hotmelt adhesive composition consisting of a urethane prepolymer having a melt viscosity in the range of 1,000 to 30,000 cps at 85.degree. C. and an isocyanate group at each of its opposite ends, and obtained by reacting a diisocyanate with a polyolefin diol having a hydroxy group at each of its opposite ends;
- and a tackifier substantially unreactive with the urethane prepolymer and compatible therewith;
- said adhesive composition having a melt viscosity in the range of 3,200 to 40,000 cps at 100.degree. C.
Dependencies are inferred from the claim text.