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    • 4. 发明公开
    • 통기성 필름
    • 防水膜
    • KR1020080064251A
    • 2008-07-09
    • KR1020070000934
    • 2007-01-04
    • (주)인터포어
    • 최세현이중철정우철
    • A61F13/15
    • A61F13/15A61F2013/15325A61F2013/15552A61F2013/51355A61F2013/51447
    • A breathable film is provided to obtain a film that is permeable to vapor and is non-permeable to liquid by forming minute pores through physical drawing without the use of organic or inorganic materials. A breathable film is provided with minute pores through a dry type drawing method that uses a pure crystalline polymer without addition of inorganic compound or organic compound for the formation of pores and does not use organic solvent. The steam transmission rate of the breathable film is 300g/m^2/24hours. An undrawn film is manufactured by extruding pure crystalline polymer without addition of organic and inorganic material particles like a stabilizer, an antioxidant or a dispersing agent. Crystallization is induced by cooling the undrawn film. Fibrous pores are formed through a physical drawing process, and then final heat treatment is done.
    • 提供透气膜以获得透气性并且通过在不使用有机或无机材料的情况下通过物理拉伸形成微小孔而不透液体的膜。 透气膜通过干式拉伸法提供微孔,其使用纯结晶聚合物,而不加入无机化合物或有机化合物用于形成孔,并且不使用有机溶剂。 透气膜的蒸汽透过率为300g / m ^ 2/24小时。 通过挤出纯结晶聚合物而不加入有机和无机材料颗粒如稳定剂,抗氧化剂或分散剂来制造未拉伸膜。 通过冷却未拉伸膜来诱导结晶。 通过物理拉伸工艺形成纤维孔,然后进行最终的热处理。