| 摘要 |
Two-part polyurethane reactive adhesive substances capable of being measured out in the volume ratio of 1:1 The two-part polyurethane reactive adhesive substances according to the invention consist of: A) a polyisocyanate component having an NCO content of from 10 to 25% by weight, a maximum viscosity of 2,500 mPa.s (25.degree.C) and an average functionality of from 2 to 3, B) i) at least one aliphatic diol having an OH number of greater than 835 mg KOH/g, ii) at least one polyol having an average OH number of from 20 to 200 mg KOH/g and an average functionality of from 2 to 4, iii) at least one aliphatic or aromatic difunctional or trifunctional amine having a maximum molecular weight of 300 g/mol, wherein the average OH number of the total component B) is from 200 to 290 mg KOH/g and the diols, the polyols and the amines of component B) do not separate out and the viscosity of component B) is at most 3,000 mPa.s (25.degree.C) and C) from 0.005% to 2.0% by weight, referred to the entire adhesive substance, of suitable catalysts for the reaction of component A) with component B), can be applied overhead without dripping, are free from inorganic fillers and can easily be measured out in the volume ratio of 1:1.
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