| 摘要 |
Process for the preparation of acylurethanes by reacting a urethane with compounds containing hydroxyl groups, which comprises reacting a hydroxy compound (A) with a urethane (B) in the form of an imide of the formula <IMAGE> (I) to give an acylurethane containing at least one grouping of the formula -CO-R-CO-NH-COOR1 (II). In these formulae, R denotes the hydrocarbon radical of an optionally alpha , beta -ethylenically unsaturated, aliphatic, cycloaliphatic or aromatic dicarboxylic acid or endomethylene derivatives thereof, and R1 denotes alkyl, alkoxy, alkoxyalkyl, cycloalkyl or benzyl. These acylurethanes are suitable for use as self-crosslinking curing agents or as curing agents for polyhydroxy compounds for the production of shaped articles and/or coatings.
|
