| abstract |
The present invention relates to a process for the preparation of hydroxyamino polymers, comprising the steps of: a) reacting an H-functional starter compound with at least one Zerewitinoff-active H atom with an unsaturated cyclic carboxyl reaction of an acid anhydride with at least one alkylene oxide compound for obtaining a hydroxyl-bearing prepolymer, b) addition of primary amines and/or ammonia to the double bonds of the hydroxyl-bearing prepolymer obtained according to step a) for In order to obtain a hydroxyamino polymer, wherein the ratio of added amino groups to hydroxyl groups in said hydroxyamino polymer is at least 0.6. Furthermore, the invention relates to a hydroxylamino polymer obtained by the process according to the invention, and to a polyurea polyurethane system containing said hydroxyl amino polymer. |