申请人:AlliedSignal Inc.
公开号:EP0909797A1
公开(公告)日:1999-04-21
This invention relates to vinyl ether-based coatings for which properties such as color stability, thermal stability, mechanical stability, hydrolytic stability, and resistance to embrittlement may be maintained and properties hydrogen generation and blocking are minimized. The coatings comprise a vinyl ether-containing composition polymerizable by actinic, gamma ray, or electron beam radiation comprising; (a) an oligomer or a mixture of oligomers which are monofunctional, multifunctional, or a mixture of both monofunctional and multifunctional and which have a reactive functionality chosen from the group consisting of epoxy, acrylate, vinyl ether, maleate, or mixtures thereof, (b) monomers which are monofunctional, multifunctional or a mixture of both monofunctional and multifunctional monomers and which have a reactive functionality chosen from the group consisting of epoxy, acrylate, vinyl ether, maleate, or mixtures thereof, wherein at least one of (a) or (b) must contain a vinyl ether functionality; (c) a photoinitiator, optionally including a sensitizer, chosen from the group consisting of a cationic photoinitiator and a radical photoinitiator; and (d) a thermal oxidation stabilizer. The composition also comprises additives including as hydrogen stabilizers: mixtures of hindered phenols, organic sulfides or disulfides, and transition metal salts of organic compounds. Adhesion to a substrate, particularly glass, is achieved by coupling agents including vinyl ether urethane siloxane compounds.
本发明涉及以乙烯基醚为基础的涂料,可保持其颜色稳定性、热稳定性、机械稳定性、水解稳定性和抗脆性等特性,并可最大限度地减少氢的生成和阻塞。这种涂料包括一种可通过放 射线、伽马射线或电子束辐射聚合的含乙烯基醚组合物,该组合物包括(a) 低聚物或低聚物混合物,它们是单官能团、多官能团或单官能团和多官能团的混合物,具有选自环氧树脂、丙烯酸酯、乙烯基醚、马来酸盐或其混合物的反应官能团; (b) 单官能团、多官能团或单官能团和多官能团的混合物、(b) 单官能度、多官能度或单官能度和多官能度单体的混合物,其活性官能度可从环 氧、丙烯酸酯、乙烯基醚、马来酸酯或其混合物组成的组中选择,其中 (a) 或 (b) 中至少有一种必须含有乙烯基醚官能度;(c) 光引发剂,可选包括敏化剂,选自由阳离子光引发剂和自由基光引发剂组成 的组;以及 (d) 热氧化稳定剂。该组合物还包括作为氢稳定剂的添加剂:受阻酚、有机硫化物或二硫化物的混合物,以及有机化合物的过渡金属盐。通过偶联剂(包括乙烯基醚聚氨酯硅氧烷化合物)可实现与基材(尤其是玻璃)的粘合。