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771 条记录 (耗时 0.026 秒)

    Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs
    4.
    发明授权
    Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs 有权

    公开(公告)号：US09139940B2

    公开(公告)日：2015-09-22

    申请号：US11461201

    申请日：2006-07-31

    申请人： Michael R. Berrigan ,  John D. Stelter ,  Pamela A. Percha ,  Andrew R. Fox ,  William T. Fay

    发明人： Michael R. Berrigan ,  John D. Stelter ,  Pamela A. Percha ,  Andrew R. Fox ,  William T. Fay

    IPC分类号： D04H3/14 ,  D04H3/16 ,  D04H3/00

    CPC分类号： D04H3/16 ,  D04H3/00 ,  Y10T428/2481 ,  Y10T428/249953 ,  Y10T428/2913 ,  Y10T428/2969 ,  Y10T442/3325 ,  Y10T442/60 ,  Y10T442/614 ,  Y10T442/619 ,  Y10T442/626 ,  Y10T442/641 ,  Y10T442/68 ,  Y10T442/69

    摘要： A method for making a bonded nonwoven fibrous web comprising 1) providing a nonwoven fibrous web that comprises oriented semicrystalline polymeric fibers, and 2) subjecting the web to a controlled heating and quenching operation that includes a) forcefully passing through the web a fluid heated to at least the onset melting temperature of said polymeric material for a time too short to wholly melt the fibers, and b) immediately quenching the web by forcefully passing through the web a fluid at a temperature at least 50° C. less than the Nominal Melting Point of the material of the fibers. The fibers of the treated web generally have i) an amorphous-characterized phase that exhibits repeatable softening (making the fibers softenable) and ii) a crystallite-characterized phase that reinforces the fiber structure during softening of the amorphous-characterized phase, whereby the fibers may be autogenously bonded while retaining orientation and fiber structure. Apparatus for carrying out the method can comprise 1) a conveyor for conveying a web to be treated, 2) a heater mounted adjacent a first side of the conveyor and comprising a) a chamber having a wall that faces the web, b) one or more conduits through which a heated gas can be introduced into the chamber under pressure and c) a slot in said chamber wall through which heated gas flows from the chamber onto a web on the conveyor, 3) a source of quenching gas downweb from the heater on the first side of the conveyor, the quenching gas having a temperature substantially less than that of the heated gas, 4) gas-withdrawal mean disposed on the second side of the conveyor opposite from the heater, the gas-withdrawal means having a portion in alignment with the slot so as to draw heated gas from the slot through the web and also a portion downweb from the slot in alignment with the source of quenching gas so as to draw the quenching gas through the web to quench the web. Flow restrictor means is preferably disposed on the second side of the conveyor in the path of at least one of the heated gas and the quenching gas so as to even the distribution of the gas through the web.

    Non-woven fabric, method for fabricating non-woven fabric, and gas generation apparatus
    5.
    发明授权
    Non-woven fabric, method for fabricating non-woven fabric, and gas generation apparatus 有权
    无纺布，无纺布的制造方法以及气体发生装置

    公开(公告)号：US09062398B2

    公开(公告)日：2015-06-23

    申请号：US13326335

    申请日：2011-12-15

    申请人： Po-Kuei Chou ,  Wei-Yi Yen ,  Din-Sun Ju ,  Tsai-Hsin Cheng ,  Cheng Wang

    发明人： Po-Kuei Chou ,  Wei-Yi Yen ,  Din-Sun Ju ,  Tsai-Hsin Cheng ,  Cheng Wang

    IPC分类号： B01J7/00 ,  C01B3/08 ,  D04H1/413 ,  D04H1/541

    CPC分类号： D04H1/413 ,  D04H1/541 ,  Y02E60/36 ,  Y10T442/641 ,  Y10T442/658

    摘要： A non-woven fabric for reacting with a liquid to produce a gas is provided. The non-woven fabric includes at least one non-woven fabric fiber, a plurality of hot melt particles, and a plurality of solid particles. The non-woven fabric fiber has a first melting point. The hot melt particles are bonded with the non-woven fabric fiber and have a second melting point, in which the first melting point is higher than the second melting point. At least a part of the solid particles are bonded with the hot melt particles. Moreover, a method for fabricating the non-woven fabric and a gas generation apparatus using the non-woven fabric are also provided.

    摘要翻译： 提供了一种用于与液体反应以产生气体的无纺织物。 无纺布包括至少一种无纺布纤维，多个热熔体颗粒和多个固体颗粒。 无纺布纤维具有第一熔点。 热熔体颗粒与无纺织物纤维结合，具有第二熔点，其中第一熔点高于第二熔点。 至少一部分固体颗粒与热熔体颗粒结合。 此外，还提供了一种制造无纺布的方法和使用该无纺布的气体生成装置。