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    • 7. 发明申请
    • FILTER MEDIUM AND METHOD OF MANUFACTURING THE SAME AND FILTER UNIT
    • 过滤介质及其制造方法和过滤器单元
    • US20100269464A1
    • 2010-10-28
    • US12742625
    • 2008-11-11
    • Masaaki MoriMasatoshi Suzuki
    • Masaaki MoriMasatoshi Suzuki
    • B01D39/20B32B37/04
    • B01D39/1692B01D69/12B01D71/36B01D2239/0654
    • Provided is a filter medium including a porous polytetrafluoroethylene (PTFE) membrane and a gas-permeable supporting member that are integrated to ensure sufficient stiffness, having excellent gas permeability, and providing excellent bonding between respective layers included in the filter medium. The gas-permeable supporting member includes: a substrate having gas-permeability; and a fiber layer that is placed on the substrate so as to be in contact with the porous PTFE membrane. The gas-permeable supporting member has a structure in which fibers of the fiber layer enter into the substrate and are entangled with the substrate so that the fiber layer is bonded to the substrate. The fiber layer contains polyolefin-containing fibers that are bonded to the porous membrane.
    • 提供了一种过滤介质,其包括多孔聚四氟乙烯(PTFE)膜和气体可渗透的支撑构件,其一体化以确保足够的刚度,具有优异的气体渗透性,并且在包含在过滤介质中的各个层之间提供优异的粘合。 透气性支撑构件包括:具有透气性的基板; 以及放置在基板上以与多孔PTFE膜接触的纤维层。 透气性支撑构件具有纤维层的纤维进入基板并与基板缠结的结构,使得纤维层与基板结合。 纤维层含有与多孔膜结合的含有聚烯烃的纤维。