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    • 5. 发明授权
    • Barrier coatings
    • 阻隔涂层
    • US5008137A
    • 1991-04-16
    • US367992
    • 1989-06-19
    • Richard M. Nugent, Jr.Ken W. NiederstJerome A. Seiner
    • Richard M. Nugent, Jr.Ken W. NiederstJerome A. Seiner
    • C08G59/18C08J7/04C09D163/00
    • C08J7/047C08G59/184C09D163/00C08J2463/00Y10T428/1341Y10T428/1379Y10T428/31507Y10T428/31511Y10T428/31797Y10T428/31913Y10T428/31938
    • Multilayer packaging materials and multilayer containers including a barrier material having excellent resistance to gas permeability are provided. The multilayer packaging materials and containers include at least one permeable polymeric material and at least one layer of a barrier material which is a reaction product of: (i) an ungelled amine-functional polymeric resin, which is a reaction product of a polyamine and a polyfunctional material having at least two functional groups reactive with said polyamine, the ungelled polymeric resin further containing an average of greater than two polyamine moieties per molecule within said resin; and (ii) a material selected from the group consisting of a polyepoxide, a polyoxalate or mixtures thereof, the barrier material characterized as containing at least about four percent by weight amine nitrogen and having an oxygen permeability of less than about 3 cc-mil/100 in.sup.2 -day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in.sup.2 -day-atmosphere at 23.degree. C. and zero percent relative humidity. The barrier material can be formed from coating compositions including as co-curable resinous materials, e.g., a polyepoxide and an ungelled amine-functional polymeric resin formed from a polyepoxide and a polyamine having up to about two primary amino nitrogen groups per molecule, the polyamine and polyepoxide present in a reaction mixture at a molar ratio of from about 1.4:1 to about 0.83:1.
    • 提供了具有优异的耐气体渗透性的阻隔材料的多层包装材料和多层容器。 多层包装材料和容器包括至少一种可渗透聚合物材料和至少一层阻隔材料层,其是以下物质的反应产物:(i)未凝胶化的胺官能聚合物树脂,其是多胺和 具有至少两个与所述多胺反应的官能团的多官能材料,所述未凝胶化聚合物树脂在所述树脂内每分子平均含有大于两个多胺部分; 所述阻挡材料的特征在于含有至少约4重量%的胺氮并具有小于约3cc-mil / cm 3的氧渗透性, 100天2天气氛,二氧化碳渗透性在23℃和0%相对湿度的2天大气压下小于约15cc密耳/ 100。 阻挡材料可以由包括作为共固化树脂材料的涂料组合物形成,例如聚环氧化物和由聚环氧化物形成的未凝胶化的胺官能聚合物树脂和每分子具有多达约两个伯氨基氮基团的多胺,多胺 和聚环氧化物以约1.4:1至约0.83:1的摩尔比存在于反应混合物中。