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    • 3. 发明公开
    • Multilayer Type Safety Film
    • 多层安全膜
    • KR20090096194A
    • 2009-09-10
    • KR20080021609
    • 2008-03-07
    • SKC CO LTD
    • PAK HYUNG SUKLEE GWAN HYUNG
    • B32B7/02B32B27/08B32B27/36
    • B32B7/02B32B27/08B32B27/36B32B2250/24B32B2270/00B32B2307/412
    • A safety film is provided to prevent the change of tear strength and transparency by light or the long-termed use and to prevent the breaking or scattering of glass when it is applied to glass. A safety film comprises at least two layers of laminated layers in the thickness direction, wherein the tear strength of the longitudinal direction and traverse direction is 1.0 kg or greater at -10 ~ 40 °C it at the same time. The film comprises a polyethylene terephthalate layer having a degree of crystallinity of 70 ~ 100 %; and a polymer layer comprising a polyalkylene terephthalate glycol copolymer containing 10 ~ 70 weight% of dimethylcyclohexane dimetha, a polyalkylene, a polyurethane, and a polyacetate.
    • 提供安全膜以防止由于光或长期使用而引起的撕裂强度和透明度的变化,并且防止当将玻璃施加到玻璃上时玻璃的破裂或散射。 安全膜在厚度方向上至少包含两层层叠体,其中纵向方向和横向的撕裂强度在-10〜40℃同时为1.0kg以上。 该膜包括结晶度为70〜100%的聚对苯二甲酸乙二醇酯层; 以及包含含有10〜70重量%的二甲基环己烷二甲胺的聚对苯二甲酸乙二醇酯共聚物,聚亚烷基,聚氨酯和聚乙酸酯的聚合物层。