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    • 73. 发明申请
    • Heat-Sealable Composite Polymeric Film
    • 热封复合聚合物薄膜
    • US20090098375A1
    • 2009-04-16
    • US11989341
    • 2006-07-13
    • David VoisinFenghua Deng
    • David VoisinFenghua Deng
    • B32B27/30B29C47/00
    • B32B27/08B32B27/30B32B27/304B32B27/306B32B27/308B32B27/32B32B27/34B32B27/36B32B2255/10B32B2307/31B32B2307/748B32B2323/04B32B2323/10B32B2327/00B32B2331/04B32B2333/08B32B2333/12B32B2367/00B32B2377/00B32B2435/02Y10T428/266Y10T428/269Y10T428/31797Y10T428/31928
    • A heat-sealable, composite film comprising a polymeric substrate layer having a first and second surface, a primer layer disposed on the first surface of the substrate layer, and a heat-sealable polymeric layer disposed on the primer layer, wherein (i) the polymeric material of the primer layer comprises poly(vinylidene chloride)(PVdC); (ii) the thickness of the primer layer is in the range 0.01 to 6 μm; (iii) the heat-sealable polymeric layer comprises a copolymer comprising repeating monomeric units of ethylene [—CH2CH2—] and one or more types of repeating monomeric units derived from acrylic acid, methacrylic acid and vinyl acetate having the formula [—CH2C(R1)(X)—] wherein: X is selected from —COOR2 and —OC(O)CH3; R1=H or methyl; and R2 is selected from H, C1-10 alkyl and a counterion M; and (iv) the thickness of the heat-sealable layer is 25 μm or less, methods of manufacture of the same, use of said film as a packaging material for sealing a container and use of a PVdC primer layer in a heat-sealable, peelable composite polymeric film.
    • 一种可热封的复合膜,其包括具有第一和第二表面的聚合物基底层,设置在基底层的第一表面上的底漆层和设置在底漆层上的可热封聚合物层,其中(i) 底漆层的聚合物材料包括聚(偏二氯乙烯)(PVdC); (ii)底漆层的厚度在0.01〜6μm的范围内; (iii)可热封聚合物层包含共聚物,其包含乙烯[-CH 2 CH 2 - ]的重复单体单元和衍生自具有式[-CH 2 C(R 1)的丙烯酸,甲基丙烯酸和乙酸乙烯酯的一种或多种类型的重复单体单元 )(X) - ]其中:X选自-COOR 2和-OC(O)CH 3; R1 = H或甲基; 并且R 2选自H,C 1-10烷基和抗衡离子M; 和(iv)可热封层的厚度为25μm或更小,其制造方法,使用所述膜作为用于密封容器的包装材料,以及在可热封的层中使用PVdC底漆层, 可剥离复合聚合物膜。