公开(公告)号：US06368444B1

公开(公告)日：2002-04-09

申请号：US09428064

申请日：1999-10-27

申请人： Lee Kirby Jameson ,  Diane Leilani Kilpatrick ,  Paul Windsor Estey ,  James Russell Fitts, Jr. ,  Darryl Franklin Clark ,  James Richard Neely ,  Ty Jackson Stokes ,  Robert John Schwartz

发明人： Lee Kirby Jameson ,  Diane Leilani Kilpatrick ,  Paul Windsor Estey ,  James Russell Fitts, Jr. ,  Darryl Franklin Clark ,  James Richard Neely ,  Ty Jackson Stokes ,  Robert John Schwartz

IPC分类号： B32B3100

CPC分类号： B32B27/12 ,  B29C55/08 ,  B29C55/18 ,  B32B5/022 ,  B32B2038/0028 ,  B32B2262/0253 ,  B32B2262/12 ,  B32B2307/724 ,  B32B2555/00 ,  D04H13/00

摘要： A method for stretching nonwoven sheet material in the cross-machine direction includes coursing a nonwoven sheet material through a deformable nip, the nip being formed between two rotating stretch surfaces having intermeshing peaks and troughs, the surfaces of the peaks and troughs being covered with a deformable material, and contemporaneously pressing the stretch surfaces together while rotating them, such that as the nonwoven material travels through the nip, the nip deforms from an initial flat formation into a convoluted formation.

摘要翻译： 用于在横向上拉伸非织造薄片材料的方法包括通过可变形的压区移动非织造薄片材料，所述辊隙形成在具有相互啮合的峰谷的两个旋转拉伸表面之间，峰和谷的表面被覆盖 同时在旋转它们的同时将拉伸表面按压在一起，使得当非织造材料穿过辊隙时，辊隙从初始的平坦形状变形成卷积的形式。

公开(公告)号：US06036467A

公开(公告)日：2000-03-14

申请号：US992862

申请日：1997-11-25

申请人： Lee Kirby Jameson

发明人： Lee Kirby Jameson

IPC分类号： F02M51/06 ,  B01F3/08 ,  B05B1/30 ,  B05B17/06 ,  B29C47/00 ,  D01D1/04 ,  D01D5/08 ,  D01D5/247 ,  D01F6/04 ,  D04H3/16 ,  F02M27/08 ,  F02M43/04 ,  F02M69/00 ,  F02M69/04 ,  F23D11/34 ,  F23R3/28 ,  B28B17/00

CPC分类号： F23D11/34 ,  B05B1/30 ,  B05B17/0607 ,  B05B17/0623 ,  B29C47/0014 ,  B29C47/0071 ,  D01D1/04 ,  D01D5/247 ,  F02M27/08 ,  F02M43/04 ,  F02M69/041 ,  F23D11/345 ,  B29C47/0021

摘要： An apparatus and a method for the melt extrusion of a molten thermoplastic polymer, e.g., as fibers and nonwoven webs, which apparatus and method utilize ultrasonic energy to assist in the melt-extrusion process. The apparatus includes a die housing which defines a chamber adapted to receive the molten thermoplastic polymer and a means for applying ultrasonic energy to a portion of the molten thermoplastic polymer. The die housing includes a chamber adapted to receive the molten thermoplastic polymer, an inlet orifice adapted to supply the chamber with the molten thermoplastic polymer, and an extrusion orifice adapted to receive the molten thermoplastic polymer from the chamber and extrude the polymer. The means for applying ultrasonic energy is located within the chamber. The method involves supplying a molten thermoplastic polymer and extruding the molten thermoplastic polymer through an extrusion orifice in the foregoing apparatus to form a threadline. The means for applying ultrasonic energy is at least partially surrounded by molten thermoplastic polymer and is adapted to apply the ultrasonic energy to molten thermoplastic polymer as it passes into the extrusion orifice. While extruding the molten thermoplastic polymer, the means for applying ultrasonic energy is excited with ultrasonic energy. The resulting threadline then is attenuated to form a fiber. The means for applying the ultrasonic energy may be an ultrasonic horn.

摘要翻译： 用于熔融挤出熔融热塑性聚合物（例如纤维和非织造纤维网）的装置和方法，该设备和方法利用超声波能量来帮助熔融挤出过程。 该设备包括一个模具外壳，该模具外壳限定适于接收熔融热塑性聚合物的室，以及用于向熔融热塑性聚合物的一部分施加超声波能量的装置。 模具壳体包括适于容纳熔融热塑性聚合物的腔室，适于向腔室供应熔融热塑性聚合物的入口孔口，以及适于从腔室接收熔融热塑性聚合物并挤出聚合物的挤出孔。 用于施加超声波能量的装置位于室内。 该方法包括提供熔融的热塑性聚合物并将熔融的热塑性聚合物通过前述装置中的挤出孔挤出以形成丝线。 用于施加超声能量的装置至少部分地被熔融的热塑性聚合物包围，并且适于在熔融的热塑性聚合物进入挤出孔口时将超声波能量施加到熔融的热塑性聚合物上。 在挤出熔融的热塑性聚合物的同时，用超声能量激发用于施加超声波能量的装置。 所得到的丝线然后被衰减以形成纤维。 用于施加超声能量的装置可以是超声波喇叭。

公开(公告)号：US5801106A

公开(公告)日：1998-09-01

申请号：US644511

申请日：1996-05-10

申请人： Lee Kirby Jameson

发明人： Lee Kirby Jameson

IPC分类号： D01D5/098 ,  D01D5/28 ,  B32B3/00

CPC分类号： D01D5/28 ,  D01D5/098 ,  Y10T428/2978 ,  Y10T428/31 ,  Y10T442/608

摘要： A melt-extrudable polymeric strand with altered physical properties formed by extruding an emulsion comprising a melt-extrudable polymer and an immiscible component while subjecting the emulsion to ultrasonic energy. In one embodiment, a melt-extrudable polymeric strand has a plurality of fissures in the surface of the strand such that the strand has a B.E.T. surface area to six times the B.E.T. surface area of an otherwise identical strand lacking the plurality of fissures. Desirably, the strand of this embodiment has a B.E.T. surface area of within a range from about 0.10 to about 0.18 m.sup.2 /g. In a method for making such a strand, the immiscible component of the extrudable emulsion comprises a substance that is an expandable gas upon extrusion. The expandable gas forms the fissures in the strand. According to another aspect, a polymeric strand has a continuous phase which is a melt-extrudable polymer and a disperse phase which is immiscible with the continuous phase. The disperse phase forms discrete pockets of material in the extruded strand and can include a variety of components which alter the physical properties of the strand. Suitable components of the disperse phase include water, aqueous solutions, oils, low melting point metals, and other physical property altering materials.

摘要翻译： 具有改变的物理性质的可熔融挤出的聚合物链通过挤出包含可熔融挤出的聚合物和不混溶组分的乳液形成，同时使乳液受到超声能量。 在一个实施方案中，可熔融挤出的聚合物链在链的表面中具有多个裂缝，使得该链具有B.E.T. 表面积为B.E.T.的六倍。 缺少多个裂缝的另外相同的链的表面积。 理想地，本实施例的股线具有B.E.T. 表面积在约0.10至约0.18m 2 / g的范围内。 在制造这种线材的方法中，可挤出乳液的不混溶组分包括在挤出时是可膨胀气体的物质。 可膨胀气体在股线中形成裂缝。 根据另一方面，聚合物线具有连续相，其是可熔融挤出的聚合物和与连续相不混溶的分散相。 分散相在挤出的链中形成分散的材料袋，并且可以包括改变链的物理性质的各种成分。 分散相的合适组分包括水，水溶液，油，低熔点金属和其它物理性能改变材料。