CN1300305A - 高速制备微孔膜产品的方法 - Google Patents
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Abstract
通过高速方法制备湿蒸汽能够透过且对液体起屏障作用的微孔膜产品。以约500fpm-1200fpm的速度制备这种微孔产品。将含有下述物质的热塑性聚合物熔融共混:约35重量%-约45重量%的线性低密度聚乙烯、约3重量%-约10重量%的低密度聚乙烯、约40重量%-约55重量%的碳酸钙填料颗粒和约2重量%-约6重量%的苯乙烯的三嵌段共聚物。
Description
发明背景
已知制备微孔膜产品的方法已有一段时间了。例如Liu的US3832267教导在拉伸或定向之前将含分散的无定形聚合物相的聚烯烃膜熔融压花成型以提高气体和湿蒸汽透过该膜的能力。根据Liu的US3832267,具有分散的无定形聚丙烯相的结晶聚丙烯膜在双向拉伸之前首先经压花生产具有更大渗透性的定向无孔膜。利用该分散的无定形相提供微孔,从而提高其它无孔膜的渗透性以提高湿蒸汽渗透性(MVT)。该压花膜优选经压花,接着拉伸。
在1976年,Schwarz发表了一篇文章,该文章描述了用于生产微孔物质的高分子共混物和组成(Eckhard C.A.Schwartz(Biax-Fiberfilm),“新型原纤维膜结构、生产和用途”,Pap.Synth.Conf.(TAPPI),1976,第33-39页)。根据该文章,两种或多种不相容聚合物的膜,其中一种聚合物形成连续相并且第二种聚合物形成不连续相,因拉伸各相分开,从而在该聚合物基质中产生空隙并增加了膜的孔隙率。也可以用例如粘土、二氧化钛、碳酸钙等的无机填料填充能够结晶的聚合物的连续膜基质,从而在拉伸的聚合物中提供微孔性。
许多其它专利和公告公开了制备热塑性微孔膜产品的现象。例如,EP141592公开了使用聚烯烃,特别是含分散的聚苯乙烯相的乙烯醋酸乙烯酯(EVA),当将其拉伸时生产一种提高膜的湿蒸汽渗透性的空隙膜。该EP141592专利还公开了以下步骤:压花具有厚薄区域的EVA膜,然后拉伸,从而首先提供具有空隙的膜,当进一步拉伸时,生产一种网状产品。US4452845和US4596738也公开了经过拉伸的热塑性膜,其中分散相可以是填充有碳酸钙的聚乙烯,从而经过拉伸提供微孔。随后US4777073、US4814124和US4921653公开了上述早期公告所述的相同方法,包括步骤:首先压花含有填料的聚烯烃膜,然后将该膜拉伸从而提供微孔产品。
根据US4705812和4705813,已由线性低密度聚乙烯(LLDPE)和低密度聚乙烯(LDPE)的共混物与作为无机填料且平均粒径为0.1-7微米的硫酸钡生产微孔膜。还已知用例如Kraton的热塑性橡胶改性LLDPE和LDPE的共混物。例如US4582871的其它专利公开了使用热塑性苯乙烯嵌段三聚物与例如苯乙烯的其它不相容聚合物生产微孔膜。在例如US4472328和US4921652的文献中有其它常规教导。
关于未拉伸的非织造织物的挤压层压的相关专利包括US2714571、US3058868、US4522203、US4614679、4692368、4753840和US5035941。上面′868和′368专利公开了拉伸经过挤压的聚合膜,然后在压力辊隙(roller nip)中与未拉伸的非织造纤维织物层压。′203和′941专利涉及在压力辊隙中将多重聚合膜与未拉伸的非织造织物共挤压。′840专利公开了预制非织造聚合纤维材料之后与膜挤压层压,从而提高非织造纤维和膜之间的结合。更具体地说,′840专利公开了在非织造基层中形成致密和非致密区之后挤压层压的传统压花技术,从而借助致密纤维区提高非织造纤维织物和膜之间的结合。′941专利也教导,挤压层压到单层聚合膜上的未拉伸非织造织物对由通常从纤维物质平面垂直延伸的纤维产生的针孔敏感,因此该专利公开了使用多重共挤压膜层防止针孔问题。而且,在US3622422、US4379197和US4725473中公开了将松散非织造纤维与聚合膜结合的方法。
还已知使用咬合对辊拉伸非织造纤维织物以降低单位重量,该领域专利的例子有US4153664和US4517714。′664专利公开了使用一对咬合辊增量横向(CD)或纵向(MD)将非织造纤维织物拉伸以伸长且软化非织造织物的方法。′664专利还公开了另一实施方式,其中在咬合伸长之前将该非织造纤维织物层压到热塑性膜上。
还尝试制备液体不能透过但水蒸汽能够透过的透气非织造复合阻透织物。US5409761为来自专利文献的制备方法的例子。根据′761专利,非织造复合织物是将热塑性微孔膜通过超声结合到非织造纤维热塑性物质层上制备的。制备非织造且热塑性材料的透气层压件的这些方法和其它方法势必包括昂贵的加工技术和/或昂贵的原料。
尽管为了赋予空气和湿蒸汽透过性和液体阻透性能而对制备透气膜和层压件的技术进行了大量开发,但是还需要进一步提高。特别希望在高速专用机械上生产微孔膜产品和层压件有所提高。最理想的是在没有拉伸共振下生产没有不需要的针孔的微孔膜产品。在过去,为了增加生产速度,导致膜破裂或膜产品的性能不一致。
发明简述
本发明涉及一种高速制备热塑性微孔膜的方法。该微孔膜能透过空气和水蒸汽,但是为液体的屏障。根据本发明的方法还以高速生产出具有非织造基质的微孔膜透气层压件。
本发明的高速方法包括熔融共混含有如下物质的组合物:
(a)约35重量%-约45重量%的线性低密度聚乙烯,
(b)约3重量%-约10重量%的低密度聚乙烯,
(c)约40重量%-约55重量%的碳酸钙填料颗粒,和
(d)约2重量%-约6重量%的选自由苯乙烯-丁二烯-苯乙烯、苯乙烯-异戊二烯-苯乙烯和苯乙烯-乙烯-丁烯-苯乙烯组成的组的苯乙烯三嵌段共聚物及其共混物。
优选通过一缝口模头将该熔融共混组合物挤入带气刀的辊隙中,在没有拉伸共振的情况下以至少约550fbm-约1200fpm的速度形成膜。在没有拉伸共振的情况下达到至少约750fbm-约1200fpm或更大的速度。使用气刀帮助消除拉伸共振为已知,例如参照US4626574。之后,沿大致均匀地通过该膜并遍及其厚度的线路高速地向该膜施加增量拉伸力,从而提供微孔膜。因此,本发明提供了一种高速制备微孔膜和具有均匀厚度的非织造基片的层压件的方法。甚至在达到约750-1200fpm的线速度时,在该膜产品中仍可避免不规则厚度所致的拉伸共振的问题。
在组分近似范围内该LLDPE和LDPE共混物当用规定量碳酸钙平衡时能够生产没有破裂和针孔的膜。特别地,为了提供足够量的基质以载荷碳酸钙填料颗粒,从而能够在没有针孔和破裂情况下操作和拉伸该膜,该LLDPE的存在量为约35重量%-约45重量%。约3重量%-约10重量%的LDPE也对没有针孔的膜的生产有利并能够在没有拉伸共振情况下高速生产。将该聚合基质与约40重量%-约55重量%且平均粒径优选为约1微米的碳酸钙颗粒平衡,从而达到在约1000gms/m2/day-4000gms/m2/day的范围内的足够的MVT。而且,为了在高速生产中便于拉伸且不破裂,该熔融共混组合物需要约2重量%-约6重量%的三嵌段聚合物。在室温或高温下以至少约550fpm-约1200fpm或更高的速度沿大致均匀地通过该成型膜并遍及其厚度的路线向该膜流线地施加增量拉伸力,从而提供微孔膜。
本发明的方法还涉及在挤压过程中将所述的能形成微孔的热塑性膜层压到非织造纤维织物上。在相同高的速度下进行挤压层压,其中将非织造纤维织物与该能够形成微孔的热塑性挤出物一起加入辊隙中。控制纤维织物和该挤出物之间的压力,以便将该织物的一个表面与该膜结合并形成层压件。然后沿大致均匀通过该层压件并遍及其厚度的线路以一个方向将该层压件增量地拉伸,以赋予该膜微孔。可以将该层压件在横向和纵向的两个方向都拉伸,以提供能够透过湿蒸汽和气体的透气仿布液体屏障。
通过以下详细描述,将进一步理解本发明的其它好处、优点和目的。
发明详述
本发明的第一目的是生产一种微孔膜和其在高速生产机械上与非织造纤维织物层压的产品。本发明的另一目的是生产这种厚度规则、孔均匀以及没有破裂的微孔膜产品的方法。A.该方法的原料
如上所述,本发明通过以下优选形式实现这些和其它目的:
首先熔融共混以下的组合物:
(a)约35重量%-约45重量%的线性低密度聚乙烯,
(b)约3重量%-约10重量%的低密度聚乙烯,
(c)约40重量%-约55重量%的碳酸钙填料颗粒,和
(d)约2重量%-约6重量%的选自由苯乙烯-丁二烯-苯乙烯、苯乙烯-异戊二烯-苯乙烯和苯乙烯-乙烯-丁烯-苯乙烯组成的组的苯乙烯三嵌段共聚物及其共混物,
将所述熔融共混组合物挤入辊隙中在没有拉伸共振下以至少约550fpm-约1200fpm的速度形成一膜,和
沿大致均匀地通过所述膜并遍及其厚度的路线以所述速度向所述膜施加增量拉伸力,从而提供一微孔膜。
更特别地,在一优选形式中,该熔融共混组合物基本上由约42重量%的LLDPE、约4重量%的LDPE、约44重量%的平均粒径为约1微米的碳酸钙填料颗粒和约3重量%的三嵌段聚合物,特别是苯乙烯-丁二烯-苯乙烯组成。如果需要的话,可以通过加入约0-5重量%的高密度聚乙烯和0-4重量%的二氧化钛来控制该微孔膜产品的刚度性能。典型地,添加例如约0.1-约0.2重量%的碳氟聚合物的加工助剂,例如1,1,2,3,3,3-六氟1-丙烯与1,1-二氟乙烯的共聚物。也可以将该三嵌段聚合物与油、烃、抗氧化剂和稳定剂共混。抗氧化剂包括总量为500-4000ppm的四(亚甲基(3,5-二叔丁基-4-羟基氢化肉桂酸酯))甲烷(商品名为Irganox1010)和三(2,4-二叔丁基苯基)亚磷酸酯(商品名为Irgafos168)。
根据本发明的原理既可以生产压花膜也可以生产平膜。在形成压花膜时,辊隙包括一金属压花辊和一橡胶辊。辊之间的压力形成约0.5-约10密耳所需厚度的压花膜。还已发现提供抛光铬表面的辊形成平膜。无论该膜为压花膜还是平膜,通过高速增量拉伸,生产的微孔膜产品具有约1000-4000gms/m2/day的可接受范围的高的湿蒸汽透过速度(MVTR)。已发现平膜比压花膜可以更均匀地经过增量拉伸。可以在室温或高温下进行该方法。如上所述,可以用非织造纤维织物获得该微孔膜的层压件。
所述非织造纤维织物可以包括聚乙烯、聚丙烯、聚酯、人造纤维、纤维素、尼龙的纤维,和这些纤维的共混物。对非织造纤维织物已提出过许多定义。该纤维通常为人造短纤维或连续的细长丝。所述非织造通常是指经过纺粘、粗梳、熔喷等。该纤维或细丝可以是易于结合的双组分。例如,可以使用例如具有聚乙烯(PE)和聚丙烯(PP)的不同聚合物的鞘和核心的纤维;或者可以使用PE和PP纤维的混合物。作为本文中使用的“非织造纤维织物”,以其定义为相对平坦、柔性和多孔的普通平面结构的一般概念使用,并由人造短纤维或连续的细长丝组成。对非织造的详细说明,参见E.A.Vaughn的"Nonwoven Fabric Primer and Reference Sampler",Association oftheNonwoven Fabrics Industry,第3版(1992)。
在一优选形式下,该微孔层压件使用具有约0.25-10密耳之间的厚度的膜,并且根据用途,该膜厚度会改变,最优选地,在一次性用途中该厚度为约0.25-2密耳。该层压薄片的非织造纤维织物通常具有约5-75gms/yd2,优选约20-40gms/yd2的重量。可以横向(CD)增量地拉伸该复合物或层压件形成一CD拉伸的复合物。而且,CD拉伸之后,可以纵向(MD)拉伸形成在CD和MD方向都拉伸的复合物。如上所述,可以将该微孔膜或层压件用于需要湿蒸汽和空气透过性能以及液体屏障性能的许多不同用途,如婴儿尿布、婴儿训练裤、月经垫和衣服等。B.用于微孔膜和层压件的拉伸机
可以使用许多不同拉伸机和技术拉伸非织造纤维织物的膜或层压件以及可形成微孔的膜。可以使用如下所述的拉伸机和技术拉伸人造短纤维的非织造粗梳纤维织物或非织造纺粘型纤维织物的层压件:
1.斜纹咬合拉伸机
该斜纹咬合拉伸机由一对在平行轴上的左手和右手斜齿轮样元件组成。这些轴安装在两个机械侧板之间,下面轴位于固定轴承中,上面轴位于可垂直滑动的元件中。该可滑动元件可以通过调整螺钉操纵的楔形元件在垂直方向调整。将该楔形物旋出或旋入将使该垂直滑动的元件分别向下或向上移动,从而将上面咬合对辊和下面咬合对辊的齿轮状齿进一步啮合或脱离。可操作安装在侧面框架上的测微计,从而显示咬合对辊齿的啮合深度。
使用汽缸将该可滑动的元件相对调整楔形物牢固地保持在其下面啮合位置,以抵抗正拉伸的物质产生的向上力。为了使物质穿过该咬合设备或启动时与将打开所有机器辊隙点的安全电路相连,还可以缩回这些汽缸以将上下咬合对辊松开。
典型地使用一驱动装置驱动该静止咬合对辊。如果为了机械穿过或安全性该上面咬合对辊应可分开的话,优选在上下咬合对辊之间使用一抗后冲齿轮装置,以确保在再啮合时一个咬合对辊的齿总是落在另一个咬合对辊的齿之间,并避免了咬合齿附加物之间潜在破坏性的物理接触。如果咬合对辊保持恒定啮合,那么典型地不需要驱动上面咬合对辊。可以通过物料被拉伸时驱动的咬合对辊来实现驱动。
这些咬合对辊紧密地安装有细小齿距的斜齿轮。在该优选实施方式中,这些辊的直径为5.935",螺旋角为45°,标准齿距0.100",径节30,压力角14.5°,并且基本上为长的附加截头型齿轮。这样得到一窄且深的齿形,这使得咬合啮合高达约0.090",在齿边上约0.005"用于物料厚度的间隔。不将这些齿设计成传送转动转矩,并且在正常咬合拉伸操作中金属与金属不接触。
2.横向咬合拉伸机
除了咬合对辊的设计和下面所述的其它次要区域不同外,该CD咬合拉伸设备与斜纹咬合拉伸机相同。由于该CD咬合元件具有大的啮合深度,因此该设备合并产生两个咬合对辊的轴的装置以在上面轴升高或降低时保持两个咬合对辊平行是很重要的。这必需保证一个咬合对辊的齿总是落入另一个咬合对辊的齿之间,并且避免咬合齿之间潜在破坏的物理接触。通过一齿轨和齿轮装置保证这种平行运动,其中一静止齿轨以与垂直滑动的元件并排地与每个侧架接触。一轴穿过该侧架并在每个垂直滑动的元件的齿轮中运转。一轴位于该轴的各端并与齿轨啮合运转产生所希望的平行运动。
除了在具有相对高的摩擦系数的物质的咬合拉伸时之外,对CD咬合拉伸机的驱动必须运转上下咬合对辊。然而,由于少量纵向不重合或驱动滑移不会带来问题,因此该驱动不需抗后冲。通过对CD咬合元件的描述,该理由将变得显而易见。
该CD咬合元件是由固体物质以机器制造,但最好描述为两个不同直径圆盘的交替堆积。在该优选实施方式中,咬合圆盘的直径为6",厚0.031",并在其边缘具有充满半径。分开咬合盘的间隔盘的直径为5.5",厚0.069"。这种结构的两个辊在所有边上能够咬合达0.231",留0.019"空间给物料。就斜纹咬合拉伸机而言,该CD咬合元件结构将有0.100"齿距。
3.纵向咬合拉伸机
除了该咬合对辊的设计之外,该MD咬合拉伸装置与斜纹咬合拉伸机相同。该MD咬合对辊紧密地安装有细小齿距的正齿轮。在该优选实施方式中,这些辊的直径为5.933",齿距0.100",径节30,压力角14.5°,并且基本上为长的附加截头型齿轮。在这些辊上有齿轮头偏移0.010"的第二通道,从而提供一具有更大间隔的窄齿。当啮合约0.090"时,该结构将有约0.010"用于物料厚度的间隔。
4.增量拉伸技术
可以使用上述的斜纹、CD或MD咬合拉伸机生产增量拉伸的非织造纤维织物的膜或层压件以及能形成微孔的膜,从而形成本发明的微孔膜产品。例如,可以在人造短纤维或纺粘丝的非织造纤维织物和能形成微孔的热塑性膜的挤压层压件上使用拉伸操作。本发明独特方面之一是可以增量拉伸纺粘丝的非织造纤维织物的层压件,从而赋予看上去象布的该层压件以非常柔软的纤维精加工。使用例如带有一穿过拉伸机的通道且具有约0.060英寸-0.120英寸的辊啮合深度的该CD和/或MD咬合拉伸机以约550fpm-1200fpm或更快的速度增量地拉伸非织造纤维织物和能形成微孔的膜的层压件。这样增量或咬合拉伸的结果产生具有优良透气性和液体屏障性能的层压件,还赋予优良的粘合强度和柔软的布样质地。
以下实施例描述了制备本发明的微孔膜和层压件的方法。根据这些实施例和更详细的描述,本领域普通技术人员可以在不背离本发明的范围的情况下对其进行改变,并且是显而易见的。
附图简述
参照附图进一步理解本发明,其中:
图1为制备本发明的微孔层压件的管线挤压层压和增量拉伸设备简图。
图2为以图解形式沿图1中线2-2描述咬合对辊的横截面图。
图3为显示实施例1-5的线速度的图。
图4为显示压花和平面微孔膜的湿蒸汽透过性能的图。
图5为显示能够通过加热前体膜调整湿蒸汽透过率的图。
实施例1-5
挤压具有下表1中所记载组成的LLDPE和LDPE的共混物以形成膜,然后将这些膜增量地拉伸以提供微孔膜。
表1
配方(以重量计) | 1 | 2 | 3 | 4 | 5 | |
CaCO3 | 44.2 | 44.2 | 44.2 | 44.2 | 44.2 | |
LLDPE | 44.1 | 44.9 | 41.9 | 41.9 | 41.9 | |
LDPE | 1.5 | 3.7 | 3.7 | 3.7 | 3.7 | |
其它* | 10.2 | 10.2 | 10.2 | 10.2 | 10.2 | |
螺杆RPM | 33 | 45 | 57 | 64 | 75 | |
33 | 45 | 57 | 64 | 75 | ||
单位重量(gms/m2) | 45 | 45 | 45 | 45 | 45 | |
厚度(密耳) | 2 | 2 | 2 | 2 | 2 | |
线速度(fpm) | 550 | 700 | 900 | 1000 | 1200 | |
气刀(cfm/inch) | 5-25 | 5-25 | 5-25 | 5-25 | 5-25 | |
织物稳定性 | 差的厚度控制且有拉伸共振 | 织物稳定性好且没有拉伸共振 |
*其它组分包括2.5重量%的苯乙烯-丁二烯-苯乙烯(SBS)三嵌段聚合物,Shell Kraton 2122X,它是<50重量%的SBS+<30重量%的矿物油、<15重量%的EVA共聚物、<10重量%的聚苯乙烯、<10重量%的烃类树脂、<1重量%的抗氧化剂/稳定剂和<1重量%的水合非晶形二氧化硅。
使用图1所示的挤压装置将配方1-5逐一挤压成膜。如图所示,该装置可以用于带或不带层压的膜挤压。在膜挤压情况下,通过缝口模头2将实施例1-5的配方加入挤压机1中,在橡胶辊5和带气刀3的金属辊4的辊隙中形成挤出料6。当进行挤压层压时,有一来自辊13的外来纤维织物9也加入橡胶辊5和金属辊4的辊隙中。在实施例1-5中,生产该热塑性膜用于以下的增量拉伸,从而形成微孔膜。如表1所示,在约550fpm-1200fpm的速度下,制备从辊7离开的厚度为约2密耳的聚乙烯膜6。气刀3长约120",并有一约0.035"-0.060"的孔口。通过该孔口并对着挤出料6以约5cfm/inch-25cfm/inch吹空气。控制辊隙和气刀处的压力,以便在实施例2-5中制得的膜没有针孔且没有拉伸共振。当组合物中包括1.5重量%的LDPE时,以550fpm的线速度将遭遇拉伸共振。但是,当制剂中包括3.7重量%的LDPE和44.1-44.9重量%的LLDPE时,能够在大于550fpm到高至1200fpm的高速下实现膜生产且没有拉伸共振。以约450°F的模头温度将从进料区到挤压机A和B的螺杆头部的熔融温度保持在约400-430°F,从而将前体膜挤压至约2密耳(45gms/m2)。
图3为显示实施例1-5的线速度的图。仅含1.5重量%LDPE的实施例1导致膜厚度控制差且与气刀3产生拉伸共振。但是,当LDPE增加到约3.7重量%时,甚至当线速度增加到约1200fpm时也能获得优良的织物稳定性且没有拉伸共振。这图示在图3中。
图4为显示了在不同温度和拉伸辊啮合条件下实施例2-5的前体膜经过增量拉伸的压花和平膜的湿蒸汽透过性能图。如图1所示,在CD和MD增量拉伸辊(10和11,以及10′和11′)之前当室温下的外来膜12通过温度控制辊20和21时,可以控制啮合温度和深度。如图4所示,很明显,平膜的MVTR超过压花膜的MVTR。简言之,压花膜获得级别为约1200-2400gms/m2/day的MVTR,然而平膜获得级别为约1900-3200gms/m2/day的MVTR。还如图5所示,出人意料地,通过拉伸过程中的织物温度还可以控制微孔膜的MVTR。图5显示了当在CD拉伸之前加热到不同温度的膜能够导致不同MVTR。图5中报道的数据是针对0.065"的CD辊啮合深度和0.040"的MD辊啮合深度,其中辊21的温度保持在室温。用具有约165-300行/英寸的CD和MD线矩形雕刻的金属压花辊制备压花膜。该图案公开在例如US4376147中,将其加入本文作为参考。该微小图案赋予了该膜的糙面精整,但是肉眼看不见。
鉴于上面的详细说明,应当理解,对本领域普通技术人员来说,在使用本发明的原理时根据原料和条件进行相应的改变是显而易见的。
Claims (37)
1.一种高速制备热塑性微孔膜的方法,包括:
熔融共混包括以下物质的组合物:
(a)约35重量%-约45重量%的线性低密度聚乙烯,
(b)约3重量%-约10重量%的低密度聚乙烯,
(c)约40重量%-约55重量%的碳酸钙填料颗粒,和
(d)约2重量%-约6重量%的选自由苯乙烯-丁二烯-苯乙烯、苯乙烯-异戊二烯-苯乙烯和苯乙烯-乙烯-丁烯-苯乙烯组成的组的苯乙烯三嵌段共聚物及其共混物,
将所述熔融共混组合物挤入带气刀的辊隙中,在没有拉伸共振的情况下以至少约550fpm-约1200fpm的速度形成膜,和
沿大致均匀地通过所述膜并遍及其厚度的线路以所述速度向所述膜施加增量拉伸力,从而提供微孔膜。
2.权利要求1的高速方法,其中所述熔融共混组合物基本上由约42重量%的线性低密度聚乙烯、约4重量%的低密度聚乙烯、约44重量%的碳酸钙填料颗粒和约3重量%的三嵌段聚合物组成。
3.权利要求1的高速方法,其中所述熔融共混组合物还包括约0-5重量%的高密度聚乙烯、约0-4重量%的二氧化钛和约0.1重量%-约0.2重量%的加工助剂。
4.权利要求3的高速方法,其中所述熔融共混组合物包括约4重量%的高密度聚乙烯、约3重量%的二氧化钛和约0.1重量%的碳氟聚合物加工助剂。
5.权利要求4的高速方法,其中所述碳氟聚合物加工助剂为1,1,2,3,3,3-六氟1-丙烯与1,1-二氟乙烯的共聚物。
6.权利要求1的高速方法,其中所述三嵌段聚合物与油、烃、抗氧化剂和稳定剂预混合。
7.权利要求1的高速方法,其中所述辊隙包括一雕刻有165-300行/英寸的CD和MD线的金属压花辊和一橡胶辊,并控制所述辊间的压力形成压花膜。
8.权利要求1的高速方法,其中所述辊具有一抛光铬表面以形成平膜。
9.权利要求1的高速方法,包括将非织造纤维织物加入所述辊隙并在该辊隙处控制织物和膜间的压力,从而将织物和膜的表面结合形成层压的微孔薄片。
10.权利要求9的高速方法,其中所述纤维织物包括聚烯烃纤维。
11.权利要求10的高速方法,其中所述纤维选自由聚丙烯、聚乙烯、聚酯、纤维素、人造纤维、尼龙,和两种或两种以上这些纤维的共混物和共挤压物组成的组。
12.权利要求11的高速方法,其中所述的纤维织物具有约5-约70gms/yd2的重量并且所述的微孔膜具有约0.25-约10密耳的厚度。
13.权利要求12的高速方法,其中所述织物是由人造短纤维或细长丝形成。
14.权利要求1的高速方法,其中所述的增量拉伸步骤是在室温下进行的。
15.权利要求1的高速方法,其中所述增量拉伸步骤是在高温下进行的。
16.一种高速制备热塑性微孔膜的方法,包括:
熔融共混包括以下物质的组合物:
(a)约35重量%-约45重量%的线性低密度聚乙烯,
b)约3重量%-约10重量%的低密度聚乙烯,
(c)约40重量%-约55重量%的碳酸钙填料颗粒,和
(d)约2重量%-约6重量%的选自由苯乙烯-丁二烯-苯乙烯、苯乙烯-异戊二烯-苯乙烯和苯乙烯-乙烯-丁烯-苯乙烯组成的组的苯乙烯三嵌段共聚物及其共混物,
用缝口模头将所述熔融共混组合物挤入带气刀的辊隙中,在没有拉伸共振下以至少约750fpm-约1200fpm的速度形成一厚度为约0.5-10密耳的膜,
将所述膜冷却到室温,和
沿大致均匀地通过所述膜并遍及其厚度的路线以所述速度向所述冷却膜施加增量拉伸力,从而提供一微孔膜。
17.权利要求16的高速方法,其中所述膜沿纵向前进并沿与前进膜的纵向交叉的方向施加增量拉伸力,通过在前进膜的纵向施加拉伸力提供微孔膜。
18.权利要求16的高速方法,其中所述组合物基本上由约42重量%的线性低密度聚乙烯、约4重量%的低密度聚乙烯、约44重量%的碳酸钙填料颗粒、约3重量%的三嵌段聚合物、约0-5重量%的高密度聚乙烯、约0-4重量%的二氧化钛和约0.1-约0.2重量%的加工助剂组成。
19.权利要求16的高速方法,其中所述熔融共混组合物包括约4重量%的高密度聚乙烯、约3重量%的二氧化钛和约0.1重量%的碳氟聚合物加工助剂。
20.权利要求19的高速方法,其中所述碳氟聚合物加工助剂为1,1,2,3,3,3-六氟1-丙烯与1,1-二氟乙烯的共聚物。
21.权利要求20的高速方法,其中所述三嵌段聚合物与油、烃、抗氧化剂和稳定剂预混合。
22.权利要求16的高速方法,其中所述辊隙包括一雕刻有约165-300行/英寸的CD和MD线的金属压花辊和一橡胶辊,并控制所述辊间的压力以形成压花膜。
23.权利要求16的高速方法,其中所述辊具有一抛光铬表面以形成平膜。
24.权利要求16的高速方法,包括将非织造纤维织物加入所述辊隙并在该辊隙处控制织物和膜间的压力,从而将织物和膜的表面结合形成层压的微孔薄片。
25.权利要求24的高速方法,其中所述纤维织物是由选自聚丙烯、聚乙烯、聚酯、纤维素、人造纤维、尼龙,和两种或两种以上这些纤维的共混物和共挤压物的纤维形成的。
26.权利要求25的高速方法,其中所述纤维织物具有约5-约70gms/yd2的重量并且所述微孔膜具有约0.25-约10密耳的厚度。
27.权利要求16的高速方法,其中所述增量拉伸步骤是在室温下进行的。
28.权利要求16的高速方法,其中所述增量拉伸步骤是在高温下进行的。
29.权利要求16的方法生产的产品。
30.权利要求17的方法生产的产品。
31.权利要求18的方法生产的产品。
32.权利要求19的方法生产的产品。
33.权利要求25的方法生产的产品。
34.权利要求26的方法生产的产品。
35.权利要求1的方法生产的产品。
36.权利要求2的方法生产的产品。
37.权利要求3的方法生产的产品。
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Families Citing this family (76)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9393757B2 (en) | 2010-11-16 | 2016-07-19 | The Glad Products Company | Discontinuously laminated film structures with improved visual characteristics |
US8734016B2 (en) | 2012-03-28 | 2014-05-27 | The Glad Products Company | Incrementally-stretched thermoplastic films with enhanced look and feel and methods for making the same |
US9604429B2 (en) | 2010-11-16 | 2017-03-28 | The Glad Products Company | Ribbed film structures with pigment created visual characteristics |
US8865294B2 (en) | 2012-10-25 | 2014-10-21 | The Glad Products Company | Thermoplastic multi-ply film with metallic appearance |
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US5945131A (en) * | 1997-04-16 | 1999-08-31 | Velcro Industries B.V. | Continuous molding of fastener products and the like and products produced thereby |
US20020074691A1 (en) * | 1999-09-14 | 2002-06-20 | Robert M Mortellite | High speed method of making plastic film and nonwoven laminates |
US6656581B2 (en) | 1998-05-15 | 2003-12-02 | Clopay Plastic Products Company, Inc. | Incrementally stretched non-embossed films having high moisture vapor transmission rates (MVTRs) |
US6265045B1 (en) * | 1998-07-29 | 2001-07-24 | Clopay Plastic Products Company, Inc. | Method and apparatus for pin-hole prevention in zone laminates |
DE60002739T2 (de) * | 1999-09-14 | 2004-01-29 | Clopay Plastic Prod Co | Hochgeschwindigkeitsverfahren zur herstellung von kunststofffolien und laminaten mit vliesstoffen |
US20070202767A1 (en) * | 2006-02-24 | 2007-08-30 | Anderson Barry J | Method of making laminate structures for mechanical activation |
US6605172B1 (en) * | 1999-09-30 | 2003-08-12 | The Procter & Gamble Company | Method of making a breathable and liquid impermeable web |
BR0107430A (pt) * | 2000-01-10 | 2002-10-08 | Clopay Plastic Prod Co | Filme microporoso e respectivo método de produção a alta velocidade |
US20010031329A1 (en) | 2000-01-21 | 2001-10-18 | Shaffer Roy E. | Unitary vapor retarder for chilled pipe insulation |
US6821915B2 (en) * | 2000-05-03 | 2004-11-23 | Kimberly-Clark Worldwide, Inc. | Film having high breathability induced by low cross-directional stretch |
US6533884B1 (en) | 2000-11-03 | 2003-03-18 | Printpack Illinois, Inc. | Method and system for extrusion embossing |
US6582810B2 (en) | 2000-12-22 | 2003-06-24 | Kimberly-Clark Worldwide, Inc. | One-step method of producing an elastic, breathable film structure |
US20020119300A1 (en) * | 2000-12-22 | 2002-08-29 | Taylor Jack D. | Breathable and elastic polyurethane films and laminates containing same |
JP2004532939A (ja) * | 2001-03-15 | 2004-10-28 | ザ プロクター アンド ギャンブル カンパニー | 大きなデニールの分割可能な繊維から作られた伸長可能な繊維及び不織布 |
KR100439459B1 (ko) * | 2001-04-30 | 2004-07-09 | 주식회사 한진피앤씨 | 부직포가 합지된 압연 통기성 필름과 그 제조방법 및 장치 |
EP1407069A4 (en) | 2001-06-19 | 2005-03-30 | Kappler Inc | LIQUID IMPREGNABLE VAPOR PERMEABLE COMPOSITE FABRIC AND METHOD OF MANUFACTURING THE SAME |
TW552196B (en) | 2001-07-20 | 2003-09-11 | Clopay Corp | Laminated sheet and method of making same |
US8283029B2 (en) * | 2001-08-13 | 2012-10-09 | Clopay Plastic Products Company, Inc. | Multilayer microporous films and composites for barrier protective materials, and methods |
TWI296571B (en) * | 2001-08-13 | 2008-05-11 | Clopay Corp | Mulyilayer microporous films and methods |
EP1461479A1 (en) * | 2001-12-14 | 2004-09-29 | The Procter & Gamble Company | High elongation, low denier fibers using high extrusion rate spinning |
AR038590A1 (es) * | 2002-02-22 | 2005-01-19 | Clopay Plastic Prod Co | Hoja laminada de pelicula y metodos para su fabricacion |
US7972981B2 (en) * | 2002-03-15 | 2011-07-05 | Fiberweb, Inc. | Microporous composite sheet material |
JP5179061B2 (ja) * | 2004-01-26 | 2013-04-10 | ザ プロクター アンド ギャンブル カンパニー | ポリプロピレンブレンド及び混合物を含む繊維及び不織布 |
KR100605386B1 (ko) * | 2004-03-04 | 2006-07-28 | 미래나노텍(주) | 미세형상을 갖는 광학부재의 제조장치와 제조방법 및 이를위한 성형몰드 |
DE102004021423A1 (de) * | 2004-04-30 | 2005-12-01 | Siemens Ag | Verfahren und Einrichtung zur Ermittlung der Leistungsfähigkeit eines Wärmetauschers |
MXPA06014971A (es) * | 2004-06-29 | 2007-02-08 | Avery Dennison Corp | Laminado no tejido-elastomerico con mejor union entre elastomero y hoja no tejida. |
US20060147685A1 (en) * | 2004-12-30 | 2006-07-06 | Kimberly-Clark Worldwide, Inc. | Multilayer film structure with higher processability |
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US20080096452A1 (en) * | 2006-09-19 | 2008-04-24 | Tredegar Film Products Corporation | Breathable Laminate With A High Abrasion Resistance and Method of Manufacturing the Same |
US8173559B2 (en) * | 2006-11-30 | 2012-05-08 | The Procter & Gamble Company | Extensible nonwoven webs containing multicomponent nanocomposite fibers |
US8168550B2 (en) * | 2006-11-30 | 2012-05-01 | The Procter & Gamble Company | Extensible nonwoven webs containing monocomponent nanocomposite fibers |
DE102008005466A1 (de) | 2008-01-21 | 2009-07-23 | Fiberweb Berlin Gmbh | Polymermischung |
US8168853B2 (en) | 2008-01-24 | 2012-05-01 | The Proctor & Gamble Company | Extrusion bonded laminates for absorbent articles |
US8445744B2 (en) * | 2008-01-24 | 2013-05-21 | The Procter & Gamble Company | Extrusion bonded laminates for absorbent articles |
US20100038037A1 (en) * | 2008-08-13 | 2010-02-18 | Dana Ray Hanson | Apparatus for applying a film to a bottom side of an extruded sheet |
US8876382B2 (en) * | 2009-09-03 | 2014-11-04 | The Glad Products Company | Embossed draw tape bag |
US9637278B2 (en) * | 2008-10-20 | 2017-05-02 | The Glad Products Company | Non-continuously laminated multi-layered bags with ribbed patterns and methods of forming the same |
US8888365B2 (en) | 2009-11-16 | 2014-11-18 | The Glad Products Company | Non-continuously laminated multi-layered bags |
US8292863B2 (en) | 2009-10-21 | 2012-10-23 | Donoho Christopher D | Disposable diaper with pouches |
US10293981B2 (en) | 2009-11-16 | 2019-05-21 | The Glad Products Company | Non-continuously laminated structures of thermoplastic films with differing material compositions and functional material properties |
US11345118B2 (en) | 2009-11-16 | 2022-05-31 | The Glad Products Company | Films and bags with visually distinct regions and methods of making the same |
US9114596B2 (en) | 2009-11-16 | 2015-08-25 | The Glad Products Company | Incrementally-stretched adhesively-laminated films and methods for making the same |
US8940377B2 (en) | 2009-11-16 | 2015-01-27 | The Glad Products Company | Multi-layered bags with discrete non-continuous lamination |
WO2011060405A1 (en) * | 2009-11-16 | 2011-05-19 | The Glad Products Company | Discontinuously laminated film |
US9186862B2 (en) | 2009-11-16 | 2015-11-17 | The Glad Products Company | Multi-layered lightly-laminated films and methods of making the same |
US9108390B2 (en) | 2011-11-04 | 2015-08-18 | The Glad Products Company | Incrementally-stretched thermoplastic films and bags with increased haze |
US10780669B2 (en) | 2009-11-16 | 2020-09-22 | The Glad Products Company | Films and bags with visually distinct regions and methods of making the same |
EP2523994B1 (en) | 2010-01-12 | 2018-08-15 | Greenrock, Ltd. | Paper-like film and process for making it |
WO2012112522A1 (en) | 2011-02-14 | 2012-08-23 | Kuraray America Inc. | Elastomeric formulations useful in films and sheets |
AU2012249913A1 (en) | 2011-04-25 | 2013-10-24 | The Glad Products Company | Multi-layered films with visually-distinct regions and methods of making the same |
CA2832649C (en) | 2011-04-25 | 2018-11-20 | The Glad Products Company | Thermoplastic films with visually-distinct stretched regions and methods for making the same |
DK2720862T3 (en) | 2011-06-17 | 2016-09-19 | Fiberweb Inc | Vapor permeable, water impervious TOTAL MAJOR MULTI-LAYER ARTICLE |
PL2723568T3 (pl) | 2011-06-23 | 2018-01-31 | Fiberweb Llc | Przepuszczalny dla pary, zasadniczo nieprzepuszczalny dla wody wielowarstwowy wyrób |
WO2012178027A2 (en) | 2011-06-23 | 2012-12-27 | Fiberweb, Inc. | Vapor-permeable, substantially water-impermeable multilayer article |
US9765459B2 (en) | 2011-06-24 | 2017-09-19 | Fiberweb, Llc | Vapor-permeable, substantially water-impermeable multilayer article |
US8568283B2 (en) | 2011-09-06 | 2013-10-29 | The Glad Products Company | Method for inserting a first folded film within a second folded film |
US8574142B2 (en) | 2011-09-06 | 2013-11-05 | The Glad Products Company | Apparatus for inserting a first folded film within a second c-folded film |
JP2016515015A (ja) | 2013-03-11 | 2016-05-26 | ザ プロクター アンド ギャンブル カンパニー | 多層積層体を有する吸収性物品 |
US20150376383A1 (en) * | 2014-06-26 | 2015-12-31 | The Procter & Gamble Company | Films having low sound pressure levels |
US11021584B2 (en) | 2014-08-21 | 2021-06-01 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
CN104448514B (zh) * | 2014-11-03 | 2019-01-01 | 重庆和泰润佳股份有限公司 | 具有高透气性的透气树脂及其制备方法 |
KR20170077221A (ko) | 2014-11-05 | 2017-07-05 | 윌리암 윈친 옌 | 미세다공성 시트 제품 및 그의 제조 및 사용 방법 |
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CN104558795B (zh) * | 2014-12-08 | 2017-08-22 | 佛山市联塑万嘉新卫材有限公司 | 一种高透湿量高强度的聚烯烃透气膜及其制备方法 |
US11872740B2 (en) | 2015-07-10 | 2024-01-16 | Berry Plastics Corporation | Microporous breathable film and method of making the microporous breathable film |
CN105647131A (zh) * | 2016-01-28 | 2016-06-08 | 嘉兴鹏翔包装材料有限公司 | 一种超低温cpp镀铝膜的生产方法 |
CN108779279A (zh) * | 2016-04-08 | 2018-11-09 | 株式会社德山 | 拉伸多孔性膜及其制造方法 |
KR101949220B1 (ko) | 2016-12-20 | 2019-02-19 | 주식회사 폴트리 | 통기성 합지 필름 및 이의 제조방법 |
Family Cites Families (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2714571A (en) * | 1952-04-08 | 1955-08-02 | Dobeckmun Co | Process for bonding a polyethylene film to a fibrous web |
US3058868A (en) * | 1960-12-23 | 1962-10-16 | American Can Co | Method of forming lap seams |
US3360412A (en) * | 1964-06-29 | 1967-12-26 | Wm C Heller Jr | Process and system for producing heat sealed laminates |
US3622422A (en) * | 1965-12-15 | 1971-11-23 | Kendall & Co | Process for producing a nonwoven fabric |
US3870593A (en) * | 1972-06-06 | 1975-03-11 | Minnesota Mining & Mfg | Stretch-oriented porous films and preparation and use thereof |
US3832267A (en) * | 1972-09-19 | 1974-08-27 | Hercules Inc | Embossed film |
US4153664A (en) * | 1976-07-30 | 1979-05-08 | Sabee Reinhardt N | Process for pattern drawing of webs |
IE51473B1 (en) * | 1980-08-13 | 1986-12-24 | Smith & Nephew Ass | Polymer blend films,their preparation and use |
EP0066672B1 (en) * | 1981-06-09 | 1987-09-02 | Mitsubishi Kasei Corporation | Process for producing porous film or sheet |
US4376147A (en) * | 1981-08-31 | 1983-03-08 | Clopay Corporation | Plastic film having a matte finish |
US4379197A (en) * | 1981-12-02 | 1983-04-05 | El Paso Polyolefins Company | Stretch wrap film composition |
US4626574A (en) * | 1982-07-21 | 1986-12-02 | Clopay Corporation | Linear low density polyethylene film and method of making |
US4517714A (en) * | 1982-07-23 | 1985-05-21 | The Procter & Gamble Company | Nonwoven fabric barrier layer |
US4614679A (en) * | 1982-11-29 | 1986-09-30 | The Procter & Gamble Company | Disposable absorbent mat structure for removal and retention of wet and dry soil |
GB8328279D0 (en) * | 1983-10-22 | 1983-11-23 | Smith & Nephew Res | Polymer blend films |
JPS60133039A (ja) * | 1983-12-21 | 1985-07-16 | Mitsubishi Petrochem Co Ltd | オレフィン重合体系二次加工用シート |
US4705812A (en) * | 1984-03-05 | 1987-11-10 | Mitsui Toatsu Chemicals, Inc. | Process for producing porous films involving a stretching step and the resultant product |
US4522203A (en) * | 1984-03-09 | 1985-06-11 | Chicopee | Water impervious materials |
US4753840A (en) * | 1985-01-10 | 1988-06-28 | Kimberly-Clark Corporation | Coated fabric |
JPS62148537A (ja) * | 1985-12-23 | 1987-07-02 | Mitsui Toatsu Chem Inc | 多孔性フイルムの製造法 |
NZ218971A (en) * | 1986-01-21 | 1989-05-29 | Mitsui Toatsu Chemicals | Porous polyolefin films and their preparation |
US4704813A (en) * | 1986-10-07 | 1987-11-10 | Jacob Fast | Multipurpose sign holder |
US4692368A (en) * | 1986-10-15 | 1987-09-08 | Kimberly-Clark Corporation | Elastic spunlaced polyester-meltblown polyetherurethane laminate |
US4725473A (en) * | 1986-11-25 | 1988-02-16 | Kimberly-Clark Corporation | Cloth-like, liquid impervious composite material and method for making the same |
US4777073A (en) * | 1987-03-11 | 1988-10-11 | Exxon Chemical Patents Inc. | Breathable films prepared from melt embossed polyolefin/filler precursor films |
US5035941A (en) * | 1989-08-22 | 1991-07-30 | Abandaco, Inc. | Anti-static multilayer laminate comprising a non-woven layer extrusion coated with polymeric laminae, and method of making the same |
JPH03149233A (ja) * | 1989-11-06 | 1991-06-25 | Showa Electric Wire & Cable Co Ltd | 透湿性伸縮フィルム |
US5202173A (en) * | 1990-02-12 | 1993-04-13 | Clopay Corporation | Ultra soft cloth-like embossed plastic film having post-embossed stretched areas |
ATE145021T1 (de) * | 1991-03-22 | 1996-11-15 | Kappler Safety Group | Luftdurchlässiger verbundstoff |
IT1254202B (it) * | 1992-02-06 | 1995-09-14 | Himont Inc | Manufatti accoppiati comprendenti un tessuto-non-tessuto e un film in materiali poliolefinici e procedimento per la loro preparazione |
AU7256194A (en) * | 1993-07-06 | 1995-02-06 | Leo J. Utecht | Personal protection apparatus |
US5945210A (en) * | 1995-12-13 | 1999-08-31 | Mitsui Chemicals, Inc. | Porous film and preparation process thereof |
US5865926A (en) * | 1996-02-15 | 1999-02-02 | Clopay Plastic Products Company, Inc. | Method of making a cloth-like microporous laminate of a nonwoven fibrous web and thermoplastic film having air and moisture vapor permeabilities with liquid-barrier properties |
US6179939B1 (en) * | 1997-05-12 | 2001-01-30 | Kimberly-Clark Worldwide, Inc. | Methods of making stretched filled microporous films |
-
1998
- 1998-05-15 US US09/080,063 patent/US6013151A/en not_active Expired - Lifetime
-
1999
- 1999-05-11 AR ARP990102208A patent/AR015777A1/es active IP Right Grant
- 1999-05-12 TW TW088107700A patent/TWI239978B/zh not_active IP Right Cessation
- 1999-05-12 TW TW094108528A patent/TWI252858B/zh not_active IP Right Cessation
- 1999-05-13 DE DE69926497T patent/DE69926497T2/de not_active Expired - Fee Related
- 1999-05-13 AU AU39877/99A patent/AU739260B2/en not_active Ceased
- 1999-05-13 EP EP04077292A patent/EP1482005A3/en not_active Withdrawn
- 1999-05-13 WO PCT/US1999/010562 patent/WO1999060050A1/en active IP Right Grant
- 1999-05-13 KR KR1020067001225A patent/KR100704513B1/ko not_active IP Right Cessation
- 1999-05-13 BR BR9910040-1A patent/BR9910040A/pt not_active IP Right Cessation
- 1999-05-13 AT AT99923008T patent/ATE301154T1/de not_active IP Right Cessation
- 1999-05-13 NZ NZ507461A patent/NZ507461A/en unknown
- 1999-05-13 JP JP2000549665A patent/JP2002515367A/ja active Pending
- 1999-05-13 KR KR1020007012175A patent/KR100583548B1/ko not_active IP Right Cessation
- 1999-05-13 RU RU2000128113/04A patent/RU2224772C2/ru active
- 1999-05-13 PL PL343906A patent/PL201500B1/pl not_active IP Right Cessation
- 1999-05-13 ES ES99923008T patent/ES2244195T3/es not_active Expired - Lifetime
- 1999-05-13 EP EP99923008A patent/EP1078013B1/en not_active Expired - Lifetime
- 1999-05-13 CA CA002329529A patent/CA2329529A1/en not_active Abandoned
- 1999-05-13 HU HU0102654A patent/HU226496B1/hu not_active IP Right Cessation
- 1999-05-13 CZ CZ20004041A patent/CZ298026B6/cs not_active IP Right Cessation
- 1999-05-13 CN CN99805984A patent/CN1300305A/zh active Pending
-
2000
- 2000-11-10 NO NO20005689A patent/NO20005689D0/no not_active Application Discontinuation
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CA2329529A1 (en) | 1999-11-25 |
CZ298026B6 (cs) | 2007-05-30 |
HU226496B1 (en) | 2009-03-02 |
NZ507461A (en) | 2003-09-26 |
RU2224772C2 (ru) | 2004-02-27 |
AR015777A1 (es) | 2001-05-16 |
BR9910040A (pt) | 2001-01-02 |
DE69926497D1 (de) | 2005-09-08 |
US6013151A (en) | 2000-01-11 |
PL201500B1 (pl) | 2009-04-30 |
ES2244195T3 (es) | 2005-12-01 |
KR100704513B1 (ko) | 2007-04-09 |
KR100583548B1 (ko) | 2006-05-26 |
TW200530301A (en) | 2005-09-16 |
DE69926497T2 (de) | 2006-05-24 |
ATE301154T1 (de) | 2005-08-15 |
NO20005689L (no) | 2000-11-10 |
KR20060012052A (ko) | 2006-02-06 |
PL343906A1 (en) | 2001-09-10 |
TWI239978B (en) | 2005-09-21 |
KR20010043235A (ko) | 2001-05-25 |
HUP0102654A3 (en) | 2005-10-28 |
AU739260B2 (en) | 2001-10-11 |
WO1999060050A1 (en) | 1999-11-25 |
EP1482005A2 (en) | 2004-12-01 |
AU3987799A (en) | 1999-12-06 |
EP1078013B1 (en) | 2005-08-03 |
EP1482005A3 (en) | 2005-03-09 |
NO20005689D0 (no) | 2000-11-10 |
EP1078013A1 (en) | 2001-02-28 |
JP2002515367A (ja) | 2002-05-28 |
CZ20004041A3 (cs) | 2001-04-11 |
TWI252858B (en) | 2006-04-11 |
HUP0102654A2 (hu) | 2001-11-28 |
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