One-part moisture curable polyurethane adhesive

The invention is a polyurethane prepolymer, comprising the following step: A) polyisocyanate,B) one or more of by acid reaction part of the compound or polymer. C) or a compound of without reaction activity and particle size of the polyol and polyisocyanate is 5 Microns-50 of organic polymer particle dispersoid 10wt%-60wt% dispersion triatomic alcohol; , The prepolymer comprising 0.2%-2.2% catalyst diisocyanate, the weight ratio of dihydric alcohol and triatomic alcohol and dispersion triatomic alcohol is 0.8-1.2. The other of solution, invention is a single the pressure-sensitive adhesive composition, comprising a polyurethane prepolymer and a invention can catalyze the isocyanate part of the reaction catalyst. The other is added that the invention is one or two base oil in an method, comprising contacting at least one of with an adhesive composition of the invention, wherein the adhesive film for smudging, along with the coating on the substrate part according to claim, the adhesive is cured, and then the promoter is one.