| 摘要 |
The invention relates to a curable polyurethane polymer which comprises in copolymerized formA) from 40 to 80% by weight, based on the overall weight of components A) to F), of at least one hydroxyl-containing prepolymer having at least one free-radically or photochemically polymerizable alpha,beta-ethylenically unsaturated double bond,B) from 0.1 to 20% by weight, based on the overall weight of components A) to F), of at least one compound having at least one isocyanate-reactive hydroxyl group and/or primary or Secondary amino group and, in addition, at least one polar functional group,C) from 0.1 to 10% by weight, based on the overall weight of components A) to F), of at least one compound selected from diamines, polyamines and mixtures thereof,D) from 0 to 20% by weight, based on the overall weight of components A) to F), of at least one further compound other than A), B), C) and E), having at least two isocyanate-reactive groups, which are hydroxyl groups and mixtures of hydroxyl groups and/or primary or secondary amino groups,E) from 0 to 20% by weight, based on the overall weight of components A) to F), of at least one compound having an isocyanate-reactive group,F) from 10 to 50% by weight, based on the overall weight of components A) to F), of at least one polyisocyanate,and the salts thereof, wherein the sum of the hydroxyl numbers of components A) and D) lies within a range from 121 to 300 mg of KOH/g.
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