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    • 2. 发明专利
    • Black or grey biaxially stretched film, method for producing the same, and use thereof
    • 黑色或灰色双向拉伸薄膜,其制造方法及其用途
    • JP2012158755A
    • 2012-08-23
    • JP2012018315
    • 2012-01-31
    • Mitsubishi Polyester Film Gmbhミツビシ ポリエステル フィルム ジーエムビーエイチ
    • KLIESCH HOLGERKLEIN OLIVERHILKERT GOTTFRIEDKURZ RAINERBOTHE LOTHARFISCHER INGOBORK ANDREASKUHMANN BODO
    • C08J5/18B29C55/12B29K67/00B29L7/00
    • PROBLEM TO BE SOLVED: To provide a polyester film which has a preferable thickness of 12 to 600 μm, solves problems in conventional technologies, is excellent in production cost, is good in electric insulation, can be used as a dark, particularly, black rear face laminate of a solar module, and can be used suitably also in the field of usual electric insulators.SOLUTION: A biaxially stretched film contains a polyester film as a main component, and at least one black pigment, wherein in the polyester, the diol component is composed of ≥80 mol% of 1,4-cyclohexanedimethanol (CHDM) and the dicarboxylic acid component is composed of ≥80 mol% of one or more benzenedicarboxylic acids and/or one or more naphthalenedicarboxylic acids wherein the dicarboxylic acid component is composed of ≥55 mol% of a main dicarboxylic acid component selected from two dicarboxylic acids of 2,6-naphthalenedicarboxylic acid and terephthalic acid and ≥18 mol% of a second dicarboxylic acid component different from the main dicarboxylic acid component.
    • 要解决的问题:为了提供优选厚度为12〜600μm的聚酯膜,解决了现有技术中的问题,制造成本优异,电绝缘性好,可以用作黑色,特别是 ,太阳能模块的黑色背面层压板,并且可以适用于通常的电绝缘体领域。 解决方案:双轴拉伸膜包含聚酯膜作为主要成分,和至少一种黑色颜料,其中在聚酯中,二醇组分由≥80摩尔%的1,4-环己烷二甲醇(CHDM)和 二羧酸组分由一种或多种苯二甲酸和/或一种或多种萘二羧酸的≥80摩尔%组成,其中二羧酸组分由选自二羧酸2的主要二羧酸组分的≥55摩尔%组成 ,6-萘二甲酸和对苯二甲酸,和≥18摩尔%的与主要二羧酸成分不同的第二个二羧酸成分。 版权所有(C)2012,JPO&INPIT