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    Melt-spinning synthetic polymeric fibers
    13.
    发明授权
    Melt-spinning synthetic polymeric fibers 失效
    熔融纺丝合成聚合物纤维

    公开(公告)号：US5575063A

    公开(公告)日：1996-11-19

    申请号：US447516

    申请日：1995-05-23

    申请人： John A. Hodan ,  Otto M. Ilg

    发明人： John A. Hodan ,  Otto M. Ilg

    IPC分类号： D01D4/00 ,  D01D4/02 ,  D01D4/06 ,  D01D4/08 ,  D01D5/30 ,  D01D5/34 ,  B23P15/00

    CPC分类号： D01D4/06 ,  D01D5/30 ,  Y10S425/049 ,  Y10S425/217 ,  Y10T29/494 ,  Y10T29/49995

    摘要： A spin pack for spinning synthetic fibers from two or more liquid polymer streams includes a supply for at least two polymer streams to the spin pack; a spinneret having extrusion orifices; and flow distribution plate sets. The flow distribution plate sets include at least one patterned plate having edges which define a substantially regular two-dimensional geometric shape, a substantially planar upstream surface, a substantially planar downstream surface and at least one flow distribution pattern stenciled therein by cutting through. For each patterned plate, at least one boundary plate stacked sealingly adjacent thereto and having edges which define a substantially regular geometric shape, a substantially planar upstream surface and a substantially planar downstream surface. The boundary plate has cut-through holes connecting the upstream surface with the downstream surface to form at least one flow-through channel to allow fluid flow through the patterned plate but otherwise is substantially solid.

    摘要翻译： 用于从两种或多种液体聚合物流纺出合成纤维的纺丝组件包括用于至少两种聚合物料流到纺丝包的供应; 具有挤压孔的喷丝头; 和流量分配板组。 流量分配板组包括至少一个图案化板，其具有限定基本上规则的二维几何形状的边缘，基本上平面的上游表面，基本平坦的下游表面和通过切割在其中模板化的至少一个流动分布图案。 对于每个图案化的板，至少一个边界板与其密封地相邻并且具有限定基本上规则的几何形状的边缘，基本平坦的上游表面和基本平坦的下游表面。 边界板具有连接上游表面与下游表面的切入孔，以形成至少一个流通通道，以允许流体流过图案化的板，但是其它则基本上是固体的。

    Spin pack for spinning synthetic polymeric fibers
    14.
    发明授权
    Spin pack for spinning synthetic polymeric fibers 失效
    用于纺丝合成聚合物纤维的旋转包装

    公开(公告)号：US5533883A

    公开(公告)日：1996-07-09

    申请号：US138907

    申请日：1993-10-18

    申请人： John A. Hodan ,  Otto M. Ilg

    发明人： John A. Hodan ,  Otto M. Ilg

    IPC分类号： D01D4/00 ,  D01D4/02 ,  D01D4/06 ,  D01D4/08 ,  D01D5/30 ,  D01D5/34

    CPC分类号： D01D4/06 ,  D01D5/30 ,  Y10S425/049 ,  Y10S425/217 ,  Y10T29/494 ,  Y10T29/49995

    摘要： A spin pack for spinning synthetic fibers from two or more liquid polymer streams includes a supply for at least two discrete polymer streams without mixing with another discrete stream to the spin pack; a spinneret having extrusion orifices; and flow distribution plate sets. The flow distribution plate sets include at least one patterned plate having edges which define a substantially regular two-dimensional geometric shape, a substantially planar upstream surface, a substantially planar downstream surface and at least one flow distribution pattern stenciled therein by cutting through. For each patterned plate, at least one boundary plate stacked sealingly adjacent thereto and having edges which define a substantially regular geometric shape, a substantially planar upstream surface and a substantially planar downstream surface. The boundary plate has cut-through holes connecting the upstream surface with the downstream surface to form at least one flow-through channel to allow fluid flow through the patterned plate but otherwise is substantially solid.

    摘要翻译： 用于从两种或多种液体聚合物流纺丝合成纤维的纺丝组件包括用于至少两个离散的聚合物流的供应，而不与另一离散流混合到纺丝组件; 具有挤压孔的喷丝头; 和流量分配板组。 流量分配板组包括至少一个图案化板，其具有限定基本上规则的二维几何形状的边缘，基本上平面的上游表面，基本平坦的下游表面和通过切割在其中模板化的至少一个流动分布图案。 对于每个图案化的板，至少一个边界板与其密封地相邻并且具有限定基本上规则的几何形状的边缘，基本平坦的上游表面和基本平坦的下游表面。 边界板具有连接上游表面与下游表面的切入孔，以形成至少一个流通通道，以允许流体流过图案化的板，但是其它则基本上是固体的。

    Process for modifying synthetic bicomponent fiber cross-sections
    16.
    发明授权
    Process for modifying synthetic bicomponent fiber cross-sections 失效
    改性合成双组分纤维截面的方法

    公开(公告)号：US6153138A

    公开(公告)日：2000-11-28

    申请号：US288185

    申请日：1999-04-08

    申请人： Charles F. Helms, Jr. ,  Otto M. Ilg ,  Diane R. Kent ,  Matthew B. Hoyt ,  John A. Hodan

    发明人： Charles F. Helms, Jr. ,  Otto M. Ilg ,  Diane R. Kent ,  Matthew B. Hoyt ,  John A. Hodan

    IPC分类号： D01D5/253 ,  D01F8/12 ,  B29D31/00 ,  D01D5/24 ,  D01D8/04 ,  D01D8/12

    CPC分类号： D01F8/12 ,  D01D5/253 ,  Y10T428/2929 ,  Y10T428/2931 ,  Y10T428/2973 ,  Y10T428/2975

    摘要： Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of fixed geometry so as to achieve a bicomponent fiber having a desired cross-section. In order to change to a bicomponent fiber having a cross-section which is different, therefore, at least one of (1) the differential relative viscosity, (2) the relative proportions of the first and/or second polymers, and (3) the cross-sectional bicomponent distribution of the first and second polymers, is changed. In such a manner, therefore, a wide variety of bicomponent fibers having different cross-sectional geometries may be produced without changing the fixed geometry orifice through which the polymers are co-melt-spun. Thus, bicomponent fiber cross-sections may be "engineered" to suit a variety of needs without necessarily shutting down production equipment in order to change spinnerets. The bicomponent fibers are most preferably multilobal (e.g., trilobal) in which the core component is generally triangularly shaped.

    摘要翻译： 可以在不改变喷丝孔的几何形状的情况下形成不同横截面的双组分纤维。 更具体地说，至少两种聚合物通过固定几何形状的孔进行共熔纺丝，以达到具有所需横截面的双组分纤维。 因此，为了改变具有不同截面的双组分纤维，因此，（1）差分相对粘度，（2）第一和/或第二聚合物的相对比例和（3）中的至少一个， 改变第一和第二聚合物的横截面双组分分布。 因此，以这种方式，可以生产具有不同横截面几何形状的各种各样的双组分纤维，而不改变聚合物共熔共纺的固定几何孔。 因此，双组分纤维横截面可以“工程化”以适应各种需要，而不必关闭生产设备以改变喷丝头。 双组分纤维最优选为多叶形（例如三叶形），其中芯部分通常为三角形。

    Process for melt mixing and spinning synthetic polymer
    18.
    发明授权
    Process for melt mixing and spinning synthetic polymer 失效
    熔融混合和纺丝合成聚合物的方法

    公开(公告)号：US5651928A

    公开(公告)日：1997-07-29

    申请号：US624211

    申请日：1996-03-29

    申请人： John A. Hodan ,  Matthew B. Hoyt ,  Otto M. Ilg

    发明人： John A. Hodan ,  Matthew B. Hoyt ,  Otto M. Ilg

    IPC分类号： D01D5/28 ,  D01D4/06 ,  D01F8/04

    CPC分类号： D01D5/28 ,  B29B7/88 ,  Y10T137/2076 ,  Y10T137/212 ,  Y10T137/2147 ,  Y10T137/2158 ,  Y10T137/2218

    摘要： Synthetic polymers are melt-mixed and spun from a mixture of respective first and second polymer melt flows. Specifically, the mixture of first and second polymer melt flows are mixed at a fluidic mixing device having a mixing intersection which receives the first and second polymer melt flows and discharges the mixture thereof respectively into at least one or another of multiple discharge ports fluid-connected with a respective spinning nozzle. The mixed flow of first and second polymer melt flows is controlled by diverting the first polymer melt so that it (i) entirely flows along a first flow path to responsively merge with the second polymer melt flow at the mixing intersection of the mixing device and thereby cause the mixed polymer flow to be discharged through the one discharge port, or (ii) entirely flow along a second flow path to responsively merge with the second polymer melt at the mixing intersection of the mixing device and thereby cause the mixed polymer flow to be discharged through the other discharge port. The mixed polymer flow thereby diverted is thus spun by one or another of the spinning nozzles, respectively.

    摘要翻译： 将合成聚合物熔融混合并从各自的第一和第二聚合物熔体流的混合物纺丝。 具体地说，第一和第二聚合物熔体流动的混合物在具有接收第一和第二聚合物熔体流动的混合交叉点的流体混合装置中混合，并将其混合物分别排放到流体连接的多个排放口中的至少一个或另一个 与相应的纺丝喷嘴。 通过转移第一聚合物熔体来控制第一和第二聚合物熔体流的混合流，使得其（i）完全沿着第一流动路径流动以在混合装置的混合交叉处与第二聚合物熔体流反应地合并，从而 导致混合聚合物流通过一个排出口排出，或（ii）沿着第二流动路径全部流动，以在混合装置的混合交叉处与第二聚合物熔体反应地合并，从而使混合的聚合物流为 通过另一个排放口排出。 由此分流的混合聚合物流分别由一个或另一个纺丝喷嘴纺出。