The invention relates to urethane prepolymers, obtainable by reaction of:
(A) 15 to 85 wt.-% of one or more &agr;,&ohgr;-terminated poly(meth)acrylate diols,
(B) 0 to 30 wt.-% of one or more radically curable, polyhydroxy-functional compounds,
(C) 14 to 60 wt.-% of one or more polyisocyanates,
(D) 1 to 40 wt.-% of a monofunctional compound, reactive vis-à-vis isocyanate groups, which also contains one or more radically curable groupings.
as well as their use.
                            本发明涉及一种
聚氨酯预聚体,其由以下反应获得:(A)15至85重量%的一个或多个α,ω-端基聚(甲基)
丙烯酸酯二元醇,(B)0至30重量%的一个或多个具有自由基可固化的多羟基官能化合物,(C)14至60重量%的一个或多个聚
异氰酸酯,(D)1至40重量%的单官能化合物,对
异氰酸酯基具有反应性,同时还含有一个或多个自由基可固化基团。以及它们的用途。