U.V. Curable poly(ether-urethane) polyacrylates and wet-look polymers
prepared therefrom
    6.
    发明授权
    U.V. Curable poly(ether-urethane) polyacrylates and wet-look polymers prepared therefrom 失效
    U.V. 可固化的聚(醚 - 氨基甲酸酯)聚丙烯酸酯和由其制备的湿式聚合物

    公开(公告)号:US4065587A

    公开(公告)日:1977-12-27

    申请号:US685374

    申请日:1976-05-11

    摘要: Polyether-urethane polymers, prepared from the reaction of specific molar ratios of diisocyanates with specific mixtures of polyetherdiols, glycols, triols and tetraols, and having 4-10 reactive isocyanate groups are further reacted with hydroxyalkyl acrylates through the free isocyanate functionality to provide polymers having from about 4-10 acrylates units per each mole unit of polyurethane chain. Such polymers when crosslinked under ultraviolet radiation in the presence of photosensitizers, specific reactive monofunctional acrylate solvents and multifunctional acrylate cross-linking agents cure without air inhibition to yield superior "wet look" finishes especially useful for coating metal, wood and floor tile.

    摘要翻译: 由二异氰酸酯与聚醚二醇,二醇,三醇和四醇的特定混合物的特定摩尔比与具有4-10个活性异氰酸酯基团的特定摩尔比的反应制备的聚醚 - 氨基甲酸酯聚合物通过游离异氰酸酯官能团进一步与丙烯酸羟烷基酯反应,以提供具有 每单位聚氨酯链约4-10个丙烯酸酯单元。 这种聚合物当在光敏剂,特定反应性单官能丙烯酸酯溶剂和多官能丙烯酸酯交联剂存在下在紫外线辐射下交联时,无空气抑制而固化,以产生优异的“湿润外观”表面,特别适用于涂覆金属,木材和地砖。