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    • 71. 发明申请
    • High speed spinning procedures for the manufacture of low denier polypropylene fibers and yarns
    • 用于制造低旦尼尔聚丙烯纤维和纱线的高速纺丝方法
    • US20040152815A1
    • 2004-08-05
    • US10295697
    • 2002-11-17
    • Brian G. MorinMartin E. Cowan
    • C08K005/06
    • D01F6/06D01F1/10
    • Improvements in permitting greater efficiency for low denier polypropylene fiber and yarn production are provided. Generally, spinning speeds are limited for polypropylene fibers and yarns as such materials tend to break easily upon exposure to excessively high tensions associated with low- to medium-spinning speeds. Low production speeds negatively impact the economics of producing such low denier fibers which prevents the widespread utilization of such fibers and yarns in various end-use applications, particularly applications for which low denier provides desirable hand characteristics. Thus, it has surprisingly been determined that such low denier manufactured fibers and yarns can be produced with certain nucleating additives that permit high tension levels in the quench stack as required for high-speed spinning procedures to be followed. Additionally, low-shrink and/or better resiliency properties are also available with the addition of such nucleating compounds within the target low denier polypropylene resins.
    • 提供了提高低旦尼尔聚丙烯纤维和纱线生产效率的改进措施。 通常,纺丝速度对于聚丙烯纤维和纱线是有限的,因为这样的材料在暴露于与低至中等纺丝速度相关的过高的张力时容易破裂。 低生产速度对生产这种低旦尼尔纤维的经济性产生负面影响,这阻止了各种最终用途应用中的这种纤维和纱线的广泛利用,特别是低旦尼尔提供了所需的手部特性的应用。 因此,令人惊讶地确定,这种低旦尼尔制造的纤维和纱线可以用特定的成核添加剂生产,这些成核添加剂允许淬火堆叠中的高张力水平,以便遵循高速纺丝方法的要求。 此外,在目标低旦尼尔聚丙烯树脂中加入这种成核化合物,也可获得低收缩和/或更好的弹性性能。
    • 72. 发明申请
    • Uniform production methods for colored and non-colored polypropylene fibers
    • 彩色和无色聚丙烯纤维的均匀生产方法
    • US20040096639A1
    • 2004-05-20
    • US10295441
    • 2002-11-16
    • Brian G. MorinMartin E. CowanJoseph R. Royer
    • B32B005/12D03D015/00D03D025/00B32B027/02B32B027/04B32B027/12D04H001/00D04H003/00D04H005/00D04H013/00
    • D01F6/06D01F1/04D01F1/06D01F1/10Y10T428/24058Y10T428/249947Y10T442/3171Y10T442/60Y10T442/607Y10T442/629
    • Improvements in color management for polypropylene fiber production in terms of permitting similar if not identical processing conditions for both colored and uncolored fiber production are provided. Generally, either separate polypropylene fiber manufacturing lines or different processing conditions on the same manufacturing line are required for the production of colored and non-colored polypropylene fibers. This coloring is, for example, done by using pigments that may have a nucleation effect on the PP polymer which affects fiber properties. Such an inefficient situation exists due to the physical properties of drawn polypropylene fibers during manufacture, particularly the different properties exhibited between fibers including color and fibers that are colorless. Thus, it has been determined that specific additives can permit substantially identical fiber processing conditions (such as temperature and draw ratios, as examples) for colored and non-colored polypropylene fibers, providing greater efficiency to the manufacturer when switching between such fiber types is elected and/or necessary.
    • 提供了对于聚丙烯纤维生产的色彩管理方面的改进,对于有色和未着色的纤维生产而言,允许类似的,即使不相同的加工条件。 通常,在生产有色和无色聚丙烯纤维时,需要在同一生产线上分开的聚丙烯纤维生产线或不同的加工条件。 例如,这种着色是通过使用可能对影响纤维性能的PP聚合物具有成核作用的颜料来完成的。 由于制造过程中拉伸的聚丙烯纤维的物理特性,特别是包括颜色的纤维和无色纤维之间的不同性能,存在这种低效率的情况。 因此,已经确定,特定的添加剂可以允许用于着色和无色聚丙烯纤维的基本上相同的纤维加工条件(例如温度和拉伸比,作为实例),当选择这种纤维类型之间切换时,为制造商提供更高的效率 和/或必要。
    • 73. 发明申请
    • High denier textured polypropylene fibers and yarns
    • 高旦尼尔织构的聚丙烯纤维和纱线
    • US20040096621A1
    • 2004-05-20
    • US10295747
    • 2002-11-17
    • Weihua Sonya DaiBrian G. Morin
    • B32B033/00D01D005/22D02G003/02
    • D01F1/10D01F6/06D02G3/445Y10T428/23993Y10T428/2922Y10T428/2967
    • Improvements in creating resilient high denier polypropylene yarns are provided. Generally, high denier polypropylene yarns exhibit poor resiliency (such as crush resistance, for example, when utilized as carpet face yarns) that effectively prevents widespread use in articles that require high degrees of resiliency. As a result, higher cost, but more resilient, yarns, such as polyesters or polyamides, have found greater acceptance in such end-use articles. Furthermore, previous attempts at texturing high denier polypropylene fibers have failed to attain suitable resilience levels therein is insufficient to permit proper return to initial shape and/or length after impact. It has now surprisingly been determined that such high denier polypropylene yarns can be produced with certain nucleating additives that permit requisite degrees of shape and length retention, and thus acceptable resilience levels to permit cost-effective replacement of more expensive polyester or polyamide yarns in certain end-use applications.
    • 提供了创造弹性高旦尼尔聚丙烯纱线的改进。 通常,高旦尼尔聚丙烯纱线具有较差的弹性(例如抗碎性,例如当用作地毯面纱时),其有效地防止需要高度弹性的制品中广泛使用。 因此,更高的成本,但更具弹性的纱线,例如聚酯或聚酰胺,已经在这种最终用途制品中得到更多的接受。 此外,先前对高旦尼尔聚丙烯纤维进行纹理化的尝试未能达到合适的回弹水平不足以允许在冲击后适当地恢复初始形状和/或长度。 现在令人惊讶地确定,这种高旦尼尔聚丙烯纱线可以用某些成核添加剂生产,这些成核添加剂允许形状和长度保持必需的程度,因此可以获得可接受的回弹水平,以允许在某些方面成本有效地更换更昂贵的聚酯或聚酰胺纱线 - 使用应用程序。