CN1044268C - 亲水的多组分聚合物丝条及由此制得的非织造织物 - Google Patents

亲水的多组分聚合物丝条及由此制得的非织造织物 Download PDF

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CN1044268C
CN1044268C CN93114376A CN93114376A CN1044268C CN 1044268 C CN1044268 C CN 1044268C CN 93114376 A CN93114376 A CN 93114376A CN 93114376 A CN93114376 A CN 93114376A CN 1044268 C CN1044268 C CN 1044268C
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R·S·C·杨
Ｃ·Ｃ·克里亚根
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Kimberly Clark Worldwide Inc
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Abstract

一种熔融挤出的亲水的多组分聚合物丝条，该聚合物丝条包括第一可熔融挤出的聚合物组分和第二可熔融挤出的亲水性聚合物组分，第二组分赋予丝条亲水性，它在20℃时的临界表面张力优选大于55达因/厘米，更优选大于65达因/厘米。适用的亲水性第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。适于用作第一组分的聚合物包括线型缩聚物和结晶的聚烯烃，如聚丙烯。本发明还提出用亲水性多组分聚合物丝条制成非织造织物和吸收性用品。

Description

亲水的多组分聚合物丝条及由此制得的非织造织物
本发明总的来说，涉及聚合物纤维和长丝以及由聚合物纤维和长丝制成的诸如非织造织物之类的产品，更具体地说，本发明涉及可润湿的聚合物纤维和长丝以及由这类纤维和长丝制成的非织造织物。
聚合物纤维和长丝用于制造包括纱、地毯、机织布和非织造织物等各种产品。这里所用的聚合物纤维和长丝一般指聚合物丝条。长丝指的是材料的连续丝条，纤维指的是具有一定长度的被切断的或不连续的丝条。
由聚合物丝条制成的一些产品必须是可被水或水溶液润湿的。也就是说，一些由聚合物丝条制成的产品必须是亲水的。非织造织物特别适于制造亲水性产品。这类产品包括毛巾、抹布和吸收性个人护理用品，个人护理用品包括婴儿护理用品，如尿布，儿童护理用品，如运动裤，妇女护理用品，如卫生巾，成人护理用品，如失禁用品。用于制造这类可润湿的非织造织物的典型的聚合物包括线型缩聚物，如聚酰胺、聚酯和聚氨酯以及结晶的聚烯烃，如聚乙烯、聚丙烯和乙烯与丙烯的共聚物。然而，这类聚合物的本性是疏水的，必须经过处理才能变成亲水的。
用来处理疏水性聚合物丝条和由此制得的材料的方法包括湿润剂的溶液涂敷、内掺湿润剂和等离子处理。这些方法是有效的，但也有缺点。例如无论表面涂敷还是掺到聚合物内部的湿润剂都是短效的，在一次或多次浸湿以后就会洗掉而脱离原材料，一旦这种表面试剂被洗离聚合物，聚合物就又变得疏水而排斥水。用等离子处理既慢又贵，所以无法工业化。
用来制造聚合物丝条的本性亲水的聚合物是众所周知的，这些聚合物不需要作任何处理就是亲水的，但也有一些缺点。如美国专利4,163,078、4,257,999和4,810,449中每一个都公开了由丙烯腈共聚物溶液纺丝制成的亲水性长丝或纤维。溶液纺丝成本较高，需要采用对环境有潜在危险的有机溶剂。用于制造纤维和长丝的熔融挤出的亲水性聚合物也是众所周知的，但是既不普遍而且又贵，因工业上一般是不可行的。
因此，需要成本低且永久亲水的聚合物纤维和长丝以及由此制成的诸如非织造织物之类的产品。
因而本发明的目的是提供改进的聚合物丝条和由此制成的产品，如非织造织物和吸收性用品等。
本发明的另一目的是提供永久性的亲水聚合物丝条和由此制成的产品。
本发明的进一步的目的是提供永久性的亲水聚合物丝条和由此制成的产品，但又不采用表面活性剂处理或其他常规的处理方法。
本发明的再一个目的是提供永久性的亲水聚合物丝条和由此制成的产品，但又不采用湿法纺丝方法。
本发明还有一个目的是提供永久性的亲水聚合物丝条和由此制成的比较经济的产品。
因此，在此提供了一种可熔融挤出的多组分聚合丝物丝条，它包括一种可熔融挤出的亲水聚合物组分，其含量足以为丝条提供亲水性。丝条的其余部分可由一种比这种亲水聚合物组分便宜的聚合物制成，以使丝条的总成本在工业上可行。本发明还期望由上述可熔融挤出的多组分亲水性丝条制成非织造织物，以及由这种非织造织物制成吸收性用品。
更具体地说，本发明的熔融挤出的多组分聚合物丝条包括第一可熔融挤出的聚合物组分和第二可熔融挤出的亲水的聚合物组分。第一和第二聚合物组分在横过多组分丝条的横截面上大体上被排列在各自不同的区域内，并沿多组分丝条的长度方向连续延伸，第二组分至少构成多组分丝条的圆周表面的一部分，并沿多组分丝条的长度方向延续。因为本发明的聚合物丝条包括一种亲水聚合物组分，所以没有必要作表面活性剂处理或等离子处理使丝条具有亲水性。由于不必采用这类常规的处理方法，所以可以较经济地生产本发明的丝条。此外，由于本发明的聚合物丝条是熔融挤出的而非溶液纺成，所以生产本发明的丝条时不用有机溶剂，和溶液纺成丝条相比，比较经济且对环境更安全。
本发明的聚合物丝条可以并列构型排列，也可以皮/芯构型排列。然而第一和第二组分最好以皮/芯构型排列。第一组分构成芯子，第二组分构成皮鞘，使亲水的第二组分构成多组分丝条的圆周表面。由于第二组分构成多组分丝条的圆周表面，所以多组分丝条基本上是完全亲水的。
因为有第二组分提供丝条的亲水性，所以本发明中可熔融挤出的多组分聚合物丝条的第一组分可以是疏水的。适于用作第一组分的聚合物是可熔融挤出的，它包括线型缩聚物和结晶聚烯烃。第一组分的成本最好比第二组分的成本低得多，这样，丝条的总成本较低。特别适于用作第一组分的聚合物包括聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺类。
第二组分是可熔融挤出的和亲水的，在此所说的“亲水”是指可用水或水溶液润湿的。适于用作第二组分的聚合物是指在其表面上，水或水溶液可以浸湿的聚合物。一般来说，一种聚合物如果是可润湿的，那么这种聚合物的临界表面张力必须基本上等于或大于液体的表面张力。本发明的第二组分在20℃时的临界表面张力优选大于约55达因/厘米，更优选大于约65达因/厘米。第二组分最好包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。适于用作第二组分的其他聚合物的例子是乙烯/丙烯酸聚合物和它的中和盐类。
本发明的聚合物丝条中，较好是第一组分的含量约为丝条重量的50～95％，第二组分的含量约为丝条重量的50～5％。更好的是，本发明的聚合物丝条中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
本发明的非织造织物包括上述熔融挤出的多组分聚合物丝条，可用制造非织造织物的常规方法，如熔融纺丝随后进行粘合制成。本发明的吸收性用品，包括上述非织造织物的一个液体处理层。
本发明更进一步的目的和广泛的应用范围对于本领域技术人员来说，可通过下文的详述一目了然。然而还应理解，本发明的优选实施方案的详细描述仅仅是举例说明，因为鉴于下面的详述，对于本领域技术人员来说，完全在本发明的精神实质和范围之内的各种变化和改进应是显而易见的。
图1是按本发明的优选实施方案制造的吸收性尿布类用品的局部平面图。由多层构成的尿布的一部分已经揭去，使其内部暴露出来。
本发明提供一种熔融挤出的多组分亲水性聚合物丝条、一种由这种聚合物丝条制成的非织造织物以及由这种非织造织物制成的吸收性用品。本发明的非织造织物适于制造毛巾、抹布和吸收性个人护理物品等吸收性用品，吸收性个人护理用品包括婴儿护理用品，如尿布；儿童护理用品，如运动裤；妇女护理用品，如卫生巾和成人护理用品，如失禁用品。本发明的亲水性非织造织物特别适于生产即弃尿布的液体处理层，如即弃尿布的衬里、缓冲层、转移层和分配层。
一般来说，本发明的熔融挤出的多组分聚合物丝条包括第一可熔融挤出的聚合物组分和第二可熔融挤出的亲水性聚合物组分。横过多组分丝条的截面上，第一和第二组分大体排列在不同的区域内，并沿多组分丝条的长度方向连续延伸。第二组分至少构成多组分丝条的圆周表面的一部分并沿着多组分丝条的长度方向延续。
本发明的多组分聚合物丝条中第一和第二组分优选以皮/芯构型排列，其中第二组分形成皮鞘，第一组分形成芯子。本发明的多组分聚合物丝条还可以以并列构型排列。然而，由于亲水的第二组分构成丝条的圆周表面，使得皮/芯型构型有助于产生较亲水的丝条。该圆周表面是亲水的，而第一组分被遮蔽了。
聚合物丝条的第一组分可以是疏水的，最好是一种低成本的聚合物，这样多组分丝条的总成本和假如完全由亲水的第二组分制成的多组分丝条相比要低。第一组分应该是可熔融挤出的。“可熔融挤出的”是指聚合物在聚合物的熔融温度时是热稳定的。也就是说，可熔融挤出的聚合物在它的熔融温度或低于熔融温度时无明显分解或交联。
适于用作第一组分的可熔融挤出的多组分聚合物包括线型缩聚物和结晶聚烯烃。最好是第一组分的熔体粘度高于第二组分的熔体粘度。通常当第一组分的熔体粘度高于第二组分的熔体粘度时，熔纺皮/芯构型的多组分丝条比较容易和连贯。更具体地说，适于用作第一组分的聚合物包括聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺类。Exxon公司(Howston,Texas)的ESCORENE PP 3445聚丙烯是特别优选的。
本发明的多组分聚合物丝条的第二组分应该是可熔融挤出的和亲水的。如前所述，在此所用的“亲水”是指用水或水熔液可润湿的。适于用作第二组分的聚合物是那些在其表面上水或水熔液可以浸湿的聚合物。一般来说，一种聚合物组分如果是可润湿的，那么这种聚合物组分的临界表面张力必须大于或基本上等于液体的表面张力。本发明的多组分聚合物丝条的第二组分的临界表面张力优选大于约55达因/厘米；更优选大于约65达因/厘米(20℃)。第二组分最好包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。这类嵌段共聚物可从Allied Signal(Petersburg,Virginia)公司得到，商标为HYDROFIL。其他适于用作第二组分的聚合物的例子是乙烯/丙烯酸聚合物和它的中和盐类。这类聚合物可从Allied Signal公司得到，商标为ACLYN。
本发明的多组分聚合物丝条中的第一组分的含量优选约为丝条重量的50～95％，第二组分的含量优选约为丝条重量的50～5％。本发明的聚合物丝条中的第一组分的含量更优选约为丝条重量的50～85％，第二组分的含量更优选约为丝条重量的50～15％。最好是第一组分包括聚合丙烯，第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物，第一、第二组分的含量如前所述。
本发明的多组分聚合物丝条可由常规的熔融挤出技术(如熔融纺丝制成。在Appel等人的美国专利4,340,563中提出了熔纺本发明的多组分聚合物丝条和由此制造非织造织物的优选方法，该专利所公开的内容特此引入作为参考。虽然美国专利4,340,563公开的仅是单一的聚合物组分的长丝，但是，改进上述专利生产多组分长丝的方法对本领域技术人员来说是众所周知的。其他适于用来制造本发明的多组分聚合物丝条的方法已在Davies等人的美国专利3,423,266和3,595,731以及Matsuki等人的美国专利3,802,871中公开，其公开内容特此引入作为参考。
概括地说，在美国专利4,340,563中所述的熔纺装置包括一台通过纺丝箱体将聚合物材料挤出的挤压机。纺丝箱体包括一个形成聚合物长丝的常规喷丝板。长丝通过有一排或多排孔的喷丝板被纺出而形成长丝帘。该长丝帘直接进入从纺丝箱体向下延伸的骤冷室。空气通过进气口进入骤冷室和长丝接触。一部分聚冷空气通过长丝帘从与进气口相对的出气口排出，剩余部分骤冷空气通过骤冷室被引向下方，通过骤冷室逐渐狭小的光滑的下端进入喷嘴，在此骤冷空气达到了比较高的速度。拉伸喷嘴有一个整机的宽度，它由固定壁和移动壁组成。移动壁相对于固定壁移动，以控制通过喷嘴的气流速度。骤冷空气引导长丝帘离开骤冷室通过喷嘴，将长丝沉积在移动的小孔面上形成非织造织物纤维网，然后非织造纤维网可通过常规方法粘合，如通过非织造纤维网接触热空气进行通气粘合或热点粘合。
对本发明来说，用前述美国专利4,340,563提出的方法，把常规的挤压系统和用来制造多组分长丝的喷丝板相结合可以制得多组分长丝。这种挤压系统和喷丝板为本领域普通技术人员所熟知。
通气粘合和热点粘合方法为本领域技术人员所熟知。一般来说，通气粘合机包括一个接受非织造织物纤维网的带孔的辊筒和一个在带孔辊筒周围的护罩。空气从护罩引入，透过非织造织物纤维网进入带孔辊筒，空气温度足以软化长丝的第二组分并在长丝间形成粘合。热点粘合机包括一对相邻的辊筒，其中一个辊筒有一系列的突起点，加热一个或两个辊筒，织物纤维网从两个辊筒之间的夹持点通过，辊筒上的突起点压缩、软化并粘合纤维网，横过纤维网形成一系列的粘合点。热点粘合可按美国专利3,855,046的方法进行，该专利特此引入作为参考。
设计下述实施例旨在根据美国专利4,340,563所述的方法采用常规的组分熔纺技术来说明本发明的具体实施方案并指导本领域普通技术人员如何实施本发明。
实施例1-6
六种由双组分聚合物长丝组成的非织造织物是根据美国专利4,340,563所述方法和常规的双组分熔融纺丝技术制成的。实施例1-6的工艺参数以及所制得的非织造织物的性能列于表1中。
对于实施例1-6中的每一例来说，第一组分包括Exxon公司(Howston,Texas)生产的ESCORENE PP 3445聚丙烯；第二组分包括Allied Signal公司(Petersburg,Virginia)的HYDROFIL LCFX尼龙6和聚氧化乙烯二胺的共聚物。在250℃时，HYDROFIL LCFX共聚物的熔体流动速率为61.6克/10分，熔体密度为0.95克/厘米3；ESCORENE PP 3445聚丙烯的熔体流动速率为54.2克/10分，熔体密度为0.73克/厘米3。在20℃用水进行静态接触角测定，得出HYDROFIL LCFX共聚物的临界表面张力约为69达因/厘米。
对于实施例1-6来说，骤冷区长度为38英寸，骤冷出口喷嘴长度为40英寸。实施例1-6的每块织物的基重为1盎司/码2。实施例1-5的长丝以皮/芯(S/C)构型排列，实施例6的长丝以并列构型(S/S)排列。
按渗透速率测试和流失实验测试实施例1-6的织物样品的吸收度，结果如表1所示。
按渗透速率测试过程如下：
将一块5×6英寸的试样置于一块5×6英寸的带有一种蓬松超吸水性聚合物混合物的尿布吸收垫上，然后在测试材料上放上一块Lucite板(有机玻璃板)。Lucite板的尺寸为5×6×1/4英寸，在其中心有一个直径为3/4英寸的孔。在Lucite板上加一个重量，使在测试材料上产生0.15磅/英寸2的压力。将50毫升合成尿液由Lucite板孔倾入，使尿液充满孔但又不致溢出。3分钟以后再倾入26毫升合成尿液，其倾入速度保持充满孔但又不使其溢出。记下从第二次加尿液到所有液体通过材料的时间作为渗透速率。时间越短说明渗透速率越快。
液体流失实验方法如下：
将一块3×6英寸的试样置于3×4英寸的至少可吸收6毫升测试液的尿布吸收垫上，再将两块材料一起放在呈30度角的斜面上。在离测试液接触试样点的一英寸以外处将一块聚乙烯薄膜松松地放在试样上。然后，60毫升测试合成尿测试液从分液漏斗流出，漏斗的底端距试样顶端一厘米。在倾斜面的收集管下面放一个烧杯，以收集从试样流失的测试液，记下流失液体量，并再重复以上过程三次。在每次液体冲流以后，撤换吸收垫，记下四次液体冲流以后的液体流出总量。流出量越少说明渗透性能越好。
渗透速率和流失实验进行五次，五次实验的平均值如表1所示，从表1所示的数据可以看出，实施例1-6的织物试样对合成尿的润湿性好，吸收性也好。合成尿在20℃时的表面张力约为56达因/厘米。实施例5表明，仅含10％(重量)的亲水性第二组分、以皮/芯构型排列的长丝是亲水的。然而也可看出，以并列构型排列的长丝，当第二组分含量小于50％(重量)时，它的可湿性比第二组分含量等于或大于50％(重量)的并列构型的长丝或皮/芯构型的长丝要小得多。
                         表1
实施例1 实施例2 实施例3 实施例4 实施例5 实施例6
构    型   S/C    S/C   S/C    S/C   S/C    S/S
第二组分含量(重量％) 40 30 20 20 10 50
第一组分熔体温度(°F) 498 499 499 463 469 458
第二组分熔体温度(°F) 533 537 540 525 534 505
骤冷空气(SCFM/In/标准立方英尺/分/英寸) 35 30 35 35 35 40
骤冷空气温度(°F) 50 50 50 50 51 50
骤冷室压力(水柱)    22     22    26     30     21     26
总容许能力(克/孔/分) 1.0 1.0 1.0 1.0 1.0 0.75
纤    度    9.2     10.1    6.1     4.9     6.6     4.9
渗透速度(秒)    47.3     38.8    48.8     48.3     46.7     37.3
流失量(克)    0.00     0.00    0.00     0.00     0.00     0.07
图1示出了按照本发明的优选实施方案制得的即弃尿布类用品10。尿布10包括一个前腰带镶条部分10、后腰带镶条部分14和连接前后腰带部分的中间部分16。尿布包括一个基本上不渗透液体的外覆盖层20，一个可渗透液体的衬里层30和一层位于外覆盖层和衬里层之间的吸收体40。胶粘带之类的固定部件36用来将尿布10固定在穿戴者身上。衬里30和外覆盖层20之间以及衬里和外覆盖层与吸收体40之间采用线粘合和花纹粘合法粘合，如热熔粘合、压敏粘合等。弹性带60、62、64和66配置在尿布周边，使尿布紧贴在穿戴者身上。
外覆盖层20由基本上不渗透液体的材料组成，如包括聚乙烯、聚丙烯或其他类似物的聚合物薄膜。外覆盖层20还可以由按需要提供各种程度不渗透液体性的非织造纤维网组成。
衬里层30最好包括本发明的永久性亲水的非织造织物，吸收体40也可以由本发明的永久性亲水的非织造织物制成。要求衬里层30和吸收体40都是亲水的，以便吸收和保持液体(如尿液)。虽然在图1中没有示出，但即弃尿布10可以包括附加的液体处理层，如一层缓冲层、一层转移层或一层分配层等。这些层可以是各层分开的，也可以和衬里层20或吸收垫40结合成整体。尿布10可以包括由本发明的永久性亲水的非织造材料和其他常规的亲水性材料制成的各种组合层。例如，尿布10的一层或多层液体处理层可以由经过处理后成为亲水的一般疏水材料制成，吸收体40可以由天然亲水的纤维素纤维构成。
虽然图1所示的吸收性用品10是一种即弃尿布，但应该理解本发明的非织造织物可用来制作如上面所述的各种各样的吸收性用品。
以上通过具体实施方案对本发明进行了详细描述，应该意识到，在本领域技术人员理解前面所述的内容以后，可以容易地想到对这些具体实施方案的改变、变更以及与这些实施方案相类似的办法。因此，本发明的范围应该由附加权利要求和任何与其等效的内容给予确定。

Claims (51)

1、一种熔融挤出的多组分聚合物丝条，该丝条包括第一可融挤出的聚合物组分和第二可熔融挤出的亲水性聚合物组分，其中第二组分在20℃时的临界表面张力大于约55达因/厘米，该丝条具有横截面、长度和圆周表面，第一和第二组分在横过多组分丝条的横截面上大体上排列在不同的区域内，并沿多组分丝条的长度方向连续延伸，第二组分至少构成多组分丝条的圆周表面的一部分并沿多组分丝条的长度方向延续。
2、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一和第二组分以皮/芯构型排列，第一组分构成芯子，第二组分构成皮鞘。
3、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第二组分在20℃时的临界表面张力大于约65达因/厘米。
4、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。
5、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第二组分包括乙烯/丙烯酸的聚合物。
6、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第二组分包括乙烯/丙烯酸聚合物的中和盐。
7、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一组分是疏水的。
8、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一组分选自线型缩聚物和结晶的聚烯烃。
9、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一组分包括选自聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺的聚合物。
10、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一组分包括选自聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺的聚合物，第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。
11、一种如权利要求10所述的熔融挤出的多组分聚合物丝条，其中第一和第二组分以皮/芯构型排列，第一组分构成芯子，第二组分构成皮鞘。
12、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一组分的含量约为丝条重量的50～95％。第二组分的含量约为丝条重量的50～5％。
13、一种如权利要求1所述的熔融挤出的多组分聚合物丝条，其中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
14、一种如权利要求11所述的熔融挤出的多组分聚合物丝条，其中第一组分的含量约为丝条重量的50～95％，第二组分的含量约为丝条重量的50～5％。
15、一种如权利要求11所述的熔融挤出的多组分聚合物丝条，其中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
16、一种由熔融挤出的多组分聚合物丝条构成的非织造织物，其中所述的多组分聚合物丝条包括第一可熔融挤出的聚合物组分和第二可熔融挤出的亲水性聚合物组分,其中第二组分在20℃时的临界表面张力大于约55达因/厘米，该多组分丝条具有横截面、长度和圆周表面，第一和第二组分在横过多组分丝条的横截面上大体上排列在不同的区域内，并沿多组分丝条的长度方向连续延伸，第二组分至少构成多组分丝条的圆周表面的一部分并沿多组分丝条的长度方向延续。
17、一种如权利要求16所述的非织造织物，其中第一和第二组分以皮/芯构型排列，第一组分构成芯子，第二组分构成皮鞘。
18、一种如权利要求16所述的非织造织物，其中第二组分在20℃时的临界表面张力大于约65达因/厘米。
19、一种如权利要求16所述的非织造织物，其中第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。
20、一种如权利要求16所述的非织造织物，其中第二组分包括乙烯/丙烯酸聚合物。
21、一种如权利要求16所述的非织造织物，其中第二组分包括乙烯/丙烯酸聚合物的中和盐。
22、一种如权利要求16所述的非织造织物，其中第一组分是疏水的。
23、一种如权利要求16所述的非织造织物，其中第一组分选自线型缩聚物和结晶的聚烯烃。
24、一种如权利要求16所述的非织造织物，其中第一组分包括选自聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺的聚合物。
25、一种如权利要求16所述的非织造织物，其中第一组分包括选自聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺的聚合物，第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。
26、一种如权利要求25所述的非织造织物，其中第一和第二组分以皮/芯构型排列，第一组分构成芯子，第二组分构成皮鞘。
27、一种如权利要求16所述的非织造织物，其中第一组分的含量约为丝条重量的50～95％，第二组分的含量约为丝条重量的50～5％。
28、一种如权利要求16所述的非织造织物，其中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
29、一种如权利要求26所述的非织造织物，其中第一组分的含量约为丝条重量的50～95％，第二组分的含量约为丝条重量的50～5％。
30、一种如权利要求26所述的非织造织物，其中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
31、一种包括非织造织物液体处理层的吸收性用品，其中所述的织物由熔融挤出的多组分聚合物丝条构成，其中所述的丝条包括第一可熔融挤出的聚合物组分和第二可熔融挤出的亲水性聚合物组分，其中第二组分在20℃时的临界表面张力大于约55达因/厘米，该丝条具有横截面、长度和圆周表面，第一和第二组分在横过多组分丝条的横截面上大体上排列在不同的区域内，并沿着多组分丝条的长度方向连续延伸，第二组分至少构成多组分丝条的圆周表面的一部分，并沿着多组分丝条的长度方向延续。
32、一种如权利要求31所述的吸收性用品，其中第一和第二组分以皮/芯构型排列，第一组分构成芯子，第二组分构成皮鞘。
33、一种如权利要求31所述的吸收性用品，其中第二组分在20℃时的临界表面张力大于约65达因/厘米。
34、一种如权利要求31所述的吸收性用品，其中第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。
35、一种如权利要求31所述的吸收性用品，其中第二组分包括乙烯/丙烯酸聚合物。
36、一种如权利要求31所述的吸收性用品，其中第二组分包括乙烯/丙烯酸聚合物的中和盐。
37、一种如权利要求31所述的吸收性用品，其中第一组分是疏水的。
38、一种如权利要求31所述的吸收性用品，其中第一组分选自线型缩聚物和结晶的聚烯烃。
39、一种如权利要求31所述的吸收性用品，其中第一组分包括选自聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺的聚合物。
40、一种如权利要求31所述的吸收性用品，其中第一组分包括选自聚丙烯、聚乙烯、乙烯和丙烯的共聚物、聚对苯二甲酸乙二酯和聚酰胺的聚合物，第二组分包括尼龙6和聚氧化乙烯二胺的嵌段共聚物。
41、一种如权利要求40所述的吸收性用品，其中第一和第二组分以皮/芯构型排列，第一组分构成芯子，第二组分构成皮鞘。
42、一种如权利要求31所述的吸收性用品，其中第一组分的含量约为丝条重量的50～95％，第二组分的含量约为丝条重量的50～5％。
43、一种如权利要求3 1所述的吸收性用品，其中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
44、一种如权利要求41所述的吸收性用品，其中第一组分的含量约为丝条重量的50～95％，第二组分的含量的为丝条重量的50～5％。
45 、一种如权利要求41所述的吸收性用品，其中第一组分的含量约为丝条重量的50～85％，第二组分的含量约为丝条重量的50～15％。
46、一种如权利要求31所述的吸收性用品，其中吸收性用品是成人失禁用品。
47、一种如权利要求31所述的吸收性用品，其中吸收性用品是婴儿尿布。
48、一种如权利要求31所述的吸收性用品，其中吸收性用品是抹布。
49、一种如权利要求31所述的吸收生用品，其中吸收性用品是毛巾。
50、一种如权利要求31所述的吸收性用品，其中吸收性用品是运动裤。
51、一种如权利要求31所述的吸收性用品，其中吸收性用品是妇女用吸收性产品。
CN93114376A 1992-11-12 1993-11-11 亲水的多组分聚合物丝条及由此制得的非织造织物 Expired - Fee Related CN1044268C (zh)

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EP0597224A2 (en) 1994-05-18
MX9306427A (es) 1994-05-31
CN1093422A (zh) 1994-10-12
DE69327444D1 (de) 2000-02-03
ZA937233B (en) 1994-04-19
TW249251B (zh) 1995-06-11
DE69327444T2 (de) 2000-05-11
US5643662A (en) 1997-07-01
JP3359715B2 (ja) 2002-12-24
EP0597224A3 (en) 1994-11-23
CA2092604A1 (en) 1994-05-13
EP0597224B1 (en) 1999-12-29
AU5059993A (en) 1994-05-26
ES2141745T3 (es) 2000-04-01
KR940011686A (ko) 1994-06-21
BR9304375A (pt) 1994-05-17
JPH06192911A (ja) 1994-07-12
EG20485A (en) 1999-05-31
AU670971B2 (en) 1996-08-08

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