Porous products and processes therefor
    8.
    发明授权
    Porous products and processes therefor 失效
    多孔产品和工艺

    公开(公告)号:US3914501A

    公开(公告)日:1975-10-21

    申请号:US36114973

    申请日:1973-05-17

    IPC分类号: D04H13/00 B32B5/08 D04H3/14

    摘要: The invention relates to non-woven fiber structures in which the fibers are ultra-fine, and are inter-bonded by fusion at a plurality of points in said structure. Such fibers define open and unfilled pores which are interconnected and extend from surface to surface of the sheet. Such structures are produced by extruding a blend of immiscible, thermoformable, fiber-forming polymers into a shaped article, reducing said shaped article into a sheet structure, heating the sheet structure to a temperature to fuse at least a portion of the ultra-fine fibers therein, and extracting at least a portion of the ultra-fine fibers from the sheet to render it porous. Diverse products are produced such as synthetic leather, apparel fabrics, and the like.

    摘要翻译: 本发明涉及无纺纤维结构,其中纤维是超细的,并且在所述结构中的多个点处通过熔融相互粘接。 这种纤维限定了开放和未填充的孔,其互相连接并从片材的表面延伸到表面。 这种结构通过将不混溶的,可热成形的成纤聚合物的共混物挤出成型制品来制造,将所述成形制品还原成片状结构,将片状结构加热到至少一部分超细纤维 并且从片材中提取至少一部分超细纤维以使其多孔。 生产各种不同的产品,如合成革,服装面料等。