| abstract |
(57) [Summary] [Purpose] An adhesive with improved heat distortion resistance. It consists essentially of a) an organic polyisocyanate, b) a polyhydroxy compound having a molecular weight of 500 to 5000 g / mol, c) at least one radical reactive towards isocyanates and ionic. A compound having at least one group convertible to a group or an ionic group, d) optionally, different from (c), a polyurethane comprising a compound having at least two functional groups reactive with isocyanate and having a molecular weight of 60 to 500 g / mol, and a polyvalent metal as a central atom, An aqueous polyurethane dispersion containing at least one chelate complex comprising a polydentate ligand. |