GAS BARRIER PACKAGING MATERIAL PRECURSOR AND GAS BARRIER PACKAGING MATERIAL
    68.
    发明公开
    GAS BARRIER PACKAGING MATERIAL PRECURSOR AND GAS BARRIER PACKAGING MATERIAL 审中-公开
    VORLÄUFERFÜREIN GASBARRIEREN-VERPACKUNGSMATERIAL UND GASBARRIEREN-VERPACKUNGSMATERIAL

    公开(公告)号:EP3061606A4

    公开(公告)日:2017-06-28

    申请号:EP14856046

    申请日:2014-10-10

    摘要: A gas barrier packaging material precursor (10) of the present invention, includes: a support (1); an adhesion layer (2) provided on one surface of the support (1); and a barrier layer (3) and a protective layer (4) formed adjacent to each other on the adhesion layer (2). The adhesion layer (2) contains a composite of a silicon compound having any one of an isocyanate group, an amino group, or a mercapto group or a hydrolysate thereof, an acrylic polyol, and an isocyanate compound. The protective layer (4) is formed of a coating liquid containing a polyvalent metal compound, a polyester resin, and a dispersant. The protective layer (4) contains the polyvalent metal compound by 40 to 90 mass% relative to 100 mass% of the protective layer (4). When the barrier layer (3) is separated from the gas barrier packaging material precursor (10) to measure an infrared absorption spectrum of the barrier layer (3) by a transmission method, a ratio (±/²) of a maximum peak height (±) of absorbance in a range of 1490 to 1659 cm -1 to a maximum peak height (²) of absorbance in a range of 1660 to 1750 cm -1 is less than 1.

    摘要翻译: 本发明的阻气性包装材料前体(10)包括:支撑体(1); 设置在所述支撑体(1)的一个表面上的粘合层(2); 以及在粘附层(2)上彼此相邻形成的阻挡层(3)和保护层(4)。 粘合层(2)包含具有异氰酸酯基,氨基或巯基中的任一种的硅化合物或其水解产物,丙烯酸多元醇和异氰酸酯化合物的复合物。 保护层(4)由含有多价金属化合物,聚酯树脂和分散剂的涂布液形成。 相对于100质量%的保护层(4),保护层(4)含有40〜90质量%的多价金属化合物。 当阻隔层(3)与气体阻隔包装材料前体(10)分离以通过透射法测量阻隔层(3)的红外吸收光谱时,最大峰高((2) ±1490〜1659cm -1范围内的吸光度相对于1660〜1750cm -1范围内的吸光度的最大峰高度(2)的比值小于1。