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    • 10. 发明申请
    • BARRIER COATING COMPOSITES WITH HYPERPLATY CLAY AND POLYESTER MATRIX RESIN
    • 具有超粘土和聚酯基树脂的阻隔涂层复合材料
    • US20110054105A1
    • 2011-03-03
    • US12736136
    • 2009-02-27
    • Carrie A. FeeneyMichele FarrellHarris A. Goldberg
    • Carrie A. FeeneyMichele FarrellHarris A. Goldberg
    • C08K3/34
    • C09D167/00C08L2666/62
    • An aqueous barrier coating composition in the form of a dispersion includes: (a) water; (b) a polyester matrix polymer; (c) a platy to hyperplaty kaolin filler having an average shape factor of at least about 40:1, the composition being further characterized in that: (i) the composition has a solids content of from more than 20 weight percent up to 70 percent by weight; (ii) the composition has a weight ratio of polyester matrix polymer:kaolin filler of from 4:1 to 0.75:1; and (iii) a film formed from the composition exhibits at least 5-fold reduction in oxygen permeability as compared with a like film formed of said polyester matrix polymer. Also disclosed are barrier coatings derived from the compositions as well as packaging composites incorporating a barrier film formed from the compositions.
    • 分散体形式的水性阻隔涂料组合物包括:(a)水; (b)聚酯基质聚合物; (c)具有至少约40:1平均形状因子的板状至高压高岭土填料,该组合物的进一步特征在于:(i)组合物的固体含量为20重量%至70重量% 重量 (ii)组合物具有4:1至0.75:1的聚酯基质聚合物:高岭土填料的重量比; 和(iii)与由所述聚酯基质聚合物形成的类似薄膜相比,由该组合物形成的薄膜的氧气渗透性降低至少5倍。 还公开了衍生自组合物的阻隔涂层以及包含由组合物形成的阻挡膜的包装复合材料。