Heat-curing one-component adhesives based on polyurethanes, a process for their preparation as well as their use

摘要

Thermosetting 1-component polyurethane (PUR) adhesives, optionally containing usual additives, comprise a mixture of: (a) polyadduct (I) containing hydroxyl (OH) and uretdione groups as hardener component; (b) 1,2-epoxide compounds (II) containing epoxide groups and OH group(s) as binder; and optionally (c) other compounds (III) containing OH groups. Also claimed is a method of producing the adhesives.