A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armoured glass laminates and comprising
(A) a photopolymerisable ester of an a, β-ethylenically unsaturated acid and a hydroxylated urethane or urea and having a molecular weight of 500 to 10,000
(B) a photoinitiator
(C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an α,β-ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions, and
(D) an a, p-ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably
(E) at least one further copolymerisable monomer or oligomer and which may comprise an excess of (C) or (D) over equimolar.
一种光硬化粘合剂组合物,特别适用于
玻璃与其他材料,尤其是塑料的粘合,如用于生产安全
玻璃和装甲
玻璃层压板,包括
(A) a,β-
乙烯基不饱和酸与羟基聚
氨酯或
尿素的可光聚合酯,分子量为 500 至 10,000
(B) 一种光
引发剂
(C) α,β-
乙烯基不饱和
羧酸的取代或未取代脂肪族或环脂族 N,N-二烷基
氨基醇酯,所述醇在羟基和
氨基官能团之间具有最多 6 个碳原子的亚烷基,以及
(D) a,p-
乙烯基不饱和
羧酸,其量等于每摩尔 C 的一摩尔,(C)和(D)能一起反应形成
甜菜碱,最好是
(E) 至少另一种可共聚的单体或低聚物,其中(C)或(D)的过量可超过等摩尔量。