| 摘要 |
The present invention relates to a process for the preparation of a hydroxy-amino polymer, comprising the steps: a) reacting an H-functional starter compound carrying at least one Zerewitinoff-active H atom with an unsaturated cyclic carboxylic acid anhydride and at least one alkylene oxide compound to give a hydroxyl-group-carrying prepolymer, b) adding a primary amine and/or ammonia to the double bonds of the hydroxyl-group-carrying prepolymer obtained according to step a) to give the hydroxy-amino polymer, wherein the reaction of the H-functional starter compound with the unsaturated cyclic carboxylic acid anhydride and/or the addition of the alkylene oxide compound is carried out using a double metal cyanide catalyst (DMC catalyst). The invention relates additionally to a hydroxy-amino polymer obtainable by the above-mentioned process, wherein the ratio of the amount of alkylene oxide compound to the amount of carboxylic acid anhydride is at least 1.1:1, and further to the use of this hydroxy-amino polymer in the preparation of a polyurethane urea polymer. |
| 主权项 |
1. A process for the preparation of a hydroxy-amino polymer, comprising:
a) reacting an H-functional starter compound which has at least one Zerewitinoff-active H atom with an unsaturated cyclic carboxylic acid anhydride and at least one alkylene oxide compound to form a hydroxyl-group-containing prepolymer, b) adding a compound selected from the group consisting of a primary amine group containing compounds, ammonia and mixtures thereof to the double bonds of the hydroxyl-group-containing prepolymer formed in a) to yield the hydroxy-amino polymer,whereinthe reaction of said H-functional starter compound with said unsaturated cyclic carboxylic acid anhydride and/or the addition of said alkylene oxide compound is carried out in the presence of a double metal cyanide catalyst (DMC catalyst),said H-functional starter compound contains from 1 to 35 Zerewitinoff-active H atoms,said alkylene oxide compound is chosen from alkylene oxides those having from 2 to 24 carbon atoms,the ratio of the amount of alkylene oxide compound to the amount of carboxylic acid anhydride is at least 1.1:1,and said primary amine group containing compound has at least one primary amine group and optionally contains hydroxyl groups, and is selected from the group consisting of aliphatic monoamines, aliphatic diamines, cycloaliphatic monoamines, cycloaliphatic diamines, araliphatic monoamines, and/or araliphatic diamines and mixtures thereof. |
