The invention relates to adhesives based on aqueous dispersions and surface-deactivated isocyanate particles and to latently reactive coatings, films and powders produced from such dispersions. The adhesives are prepared from aqueous compositions containing a) dispersed polymers with isocyanate-reactive groups; b) at least one dispersed surface-deactivated aliphatic solid polyisocyanate with a softening temperature of >=40° C.; c) one or more compounds of elements from subgroups 5 and 6 of the periodic system of elements, in which the particular element has an oxidation number of at least +4 and, d) optionally further additives and auxiliaries.
申请公布号
ZA200904058(B)
申请公布日期
2010.08.25
申请号
ZA20090004058
申请日期
2009.06.10
申请人
BAYER MATERIALSCIENCE AG.
发明人
BUECHNER, JOERG;GUERTLER, CHRISTOPH;PIRES, RAUL;HENNING, WOLFGANG;ARNDT, WOLFGANG