CN1208092C - 带有流体处理剂的吸收制品 - Google Patents
带有流体处理剂的吸收制品 Download PDFInfo
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Abstract
个人护理吸收剂制品,如卫生垫或月经巾、创伤敷料等,具有用流体处理剂处理的吸收材料,当含血流体流到和/或通过该吸收制品时,该流体处理剂引起该流体中红血球附聚或溶解。按照一个优选的实施方案,该吸收材料是多孔的非织造纤网材料,其所含孔隙的孔径成梯度变化从纤网材料的一侧向相对侧递增。
Description
本发明背景
发明领域
本发明涉及吸收含血流体的吸收材料。更具体说,本发明涉及在个人护理吸收制品中使用的吸收材料,该制品特别适用于吸收各种含血体液,同时提供舒适和适于穿着,比如月经期用制品,如卫生巾和月经垫、创伤敷料等。此吸收材料可以是织造材料、非织造材料或织造材料和非织造材料的结合。
先有技术的叙述
用于收集体液的各种一次性吸收制品是先有技术已知的。商品吸收制品包括尿布、卫生巾、训练短裤和尿失禁护理垫、创伤敷料等。这类一次性产品包括一些用来接受、吸收和保留液体的功能单元。这样的吸收制品一般具有含有纤维素纤维的吸收芯,比如木浆绒毛、高吸收材料颗粒,如超吸收剂,以及纤维素纤维和超吸收剂的混合物。这样的制品一般包括通常面对使用者身体的可渗透流体的盖片或面层片、吸收芯和流体不能渗透的背片。
用盖片材料将体液传送到个人护理吸收制品的吸收芯上,因此根据应用和产品类型不同,盖片应用所用的材料必须适应截然不同的身体排泄物。某些产品必须适应流体,如尿液,而另一些则必须适应蛋白质类的和粘弹性的流体,如月经排出物和粪便排泄物。因为组成上的变化和其流变性能在很宽的弹性范围,用妇女护理产品如卫生垫和卫生巾处理粘弹性月经排出物是令人烦恼的。妇女护理应用的流体处理须要控制体液的吸收、控制体液在盖片上的滞留、控制沾污的尺寸和程度、控制液体对表面的返湿、控制流体向吸收芯的释放。
有几个因素影响液体在纤维结构中的流动,这包括织物中孔结构的几何形状、固体表面的性质(表面能、表面电荷等)、固体表面的几何形状(表面粗糙度、沟槽等)、固体表面的化学/物理处理和流体的化学本质等。对于包含血液成分的流体,与打算用于处置这些流体的吸收制品如妇女护理产品和创伤敷料相关的一个问题是,红血球有一种倾向,即,要阻塞在这些产品中用于吸收流体的材料中的孔隙。典型的这种多孔材料是非织造材料或纤维纤网材料。红血球阻塞非织造材料或纤维纤网材料会导致流体入口缩小和这些产品毛细管吸收能力的下降。此外,在妇女护理产品如卫生垫或卫生巾的情况下,红血球对这里使用的非织造材料孔隙的阻塞会导致沾染增大。在包含超吸收剂的妇女护理产品的情况下,红血球自身附着在超吸收剂上,导致超吸收剂堵塞,明显降低了流体的吸收。
在妇女护理产品,如卫生垫和卫生巾的情况下,妇女们都希望在舒适和服帖、保留液体和尽可能少污染等的高性能。最重要的是,液体由垫泄漏到内衣上是完全不能接受的。
虽然在其材料和结构两个方面都做过许多改善,可是继续改善妇女护理产品的性能仍是艰巨的任务。然而,对于在妇女护理产品和其它处置含血流体的吸收材料中由于在血液或经血中存在红血球而产生的问题,还没有找到满意的解决办法。很明显,一个能够解决上述问题从而有效地处置红血球的系统,不仅将改善进入的流体在吸收材料上的分布,而且还将减小这些吸收制品过早失效的倾向。
从含血流体中分离或除去红血球的方法一般分为两类,一类是凝集(附聚),另一类是溶解;在前一类方法中,红血球发生附聚,使它们通过比如过滤更容易与其余流体组分分离;在后一类方法中,红血球的膜受到破坏,导致红血球崩解或分裂。比如在某些抗体存在下要发生附聚,这是已知的。然而,我们还不知道有哪种个人护理吸收制品使用了这种红血球处理技术。
本发明概要
因此,本发明的一个目的就是提供一种含血流体吸收材料,该材料具有降低流体中红血球含量的能力。
本发明的一个目的就是提供一种妇女护理吸收制品,该制品具有改善的流体处置能力,包括改善的流体吸入和浸润能力,以及减少污染的特性。
本发明的另一个目的是提供一种具有分隔经血各组分手段的妇女护理吸收制品,借此可以改善流体的处置和减少污染。
本发明的再一个目的是提供一种方法和系统,能够改善流体在妇女护理吸收制品中可以存在的超吸收剂的吸入情况。
一种用于吸收含血流体的材料实现了本发明的这些和其它目的,此材料包括用流体处理剂处理过的吸收材料,借此使该吸收材料所吸收的含血流体中的红血球附聚或发生溶解。按照一个特别优选的实施方案,此吸收材料包括一种用所述流体处理剂处理的多孔非织造纤网材料。按照本发明的一个实施方案,此流体处理剂是一种能够使含血流体中的红血球产生附聚、从而使它们能够与含血流体发生物理分离、使剩下的流体较容易吸收和颜色变浅的附聚剂。按照本发明的另一个实施方案,流体处理剂是细胞溶解剂。
可以用先有技术专业人员已知的任何手段制造此多孔非织造纤网材料。按照本发明的一个实施方案,此非织造纤网材料包括一种由非织造纤网层层叠而产生的孔径梯度、其中每一层的平均孔径与其它非织造纤网层的平均孔径都不相同、从而形成了有孔隙度梯度的非织造纤网材料。当其排列在个人护理吸收制品的盖片和液体密封背衬材料之间时,有孔隙度梯度的非织造纤网材料是这样排列的,平均孔径较大一方向着盖片,而非织造纤网材料的平均孔径向着液体密封背衬材料的方向而减小。结果,此有孔隙度梯度的非织造纤网材料就象一个“深度过滤器”,其中附聚的红血球就陷在有孔隙度梯度的非织造纤网材料的较大孔隙度的孔隙中。然而,必须仔细选择孔隙度梯度,以保证与附聚红血球分离的流体仍然能够绕过被捕集的颗粒,即红血球群,借此能够如所希望地进一步将流体分布在个人护理吸收制品,比如在超吸收剂中。
本发明的好处之一源于这样的事实,即与流体处理剂接触了的含血流体中的红血球不再阻塞流体向可能存在的超吸收剂中的流动。特别令人意外的是,在红血球被溶解的情况下,与可能陷在非织造材料的孔隙中的附聚红血球会导致与剩下的流体成分(即血浆)分离不同,溶解细胞的各个组分仍然留在流体中,但其本身明显不再能够附着在超吸收剂上。
优选实施方案的叙述
定义
在本文中所使用的术语“非织造纤网”或“纤维网”指的是,任何包含纤维状或类似纤维的成分的材料,它们一般是随机排列的,由使结构稳定化的粘接点而连接在一起,提供至少一定的机械完整性,在其相邻的类纤维成分之间的整个长度和宽度上形成至少一些小孔隙。此术语还包括单根的单丝和线绳、纱或丝束,以及原纤化的、打孔的或其它赋予类纤维性能处理的泡沫或薄膜。“非织造纤网”或“纤维网”是通过许多方法形成的,比如纺粘、熔喷、气流成网和粘合梳理等方法。
在本文中所使用的术语“纺粘”指的是,如在Appel等人的USP-4,340,563、Dorschner等人的USP-3,692,618、Matsuki等人的USP-3,802,817、Kinney的USP-3,338,992、3,341,394、Hartmann的USP-3,502,763、Levy的USP-3,502,538和Dobo等人的USP-3,542,615中所述的一种方法,其中将熔融的热塑性材料从喷丝板的多个一般是具有挤出丝直径的圆形毛细管中挤出成为丝,然后迅速处理形成小直径的纤维。当纺粘纤维置于收集表面上时,它们被骤冷,而且一般不粘连。纺粘纤维一般是连续的,其平均直径经常大于7μm,更优选在大约10~20μm之间。
在本文中所使用的术语“熔喷”指的是一种方法,其中将熔融的热塑性材料从多个一般是圆形的模头毛细管中挤出成为熔融线状或丝状,进入高速的、一般是加热的汇集气流(如空气)中,该气流使熔融热塑性材料的丝变细,减小其直径而形成可以是微纤直径的纤维。此后,熔喷纤维被高速气流携带并置于收集表面上,这时经常还是粘的,以此形成随机分布熔喷纤维的纤网。在比如Butin的USP-3,849,241中叙述了此方法。熔喷纤维是微纤,它可以是连续的,也可以不是连续的,其平均直径一般小于10μm。
在本文中所使用的术语“粘合梳理”或“粘合梳理纤网”指的是通过先有技术专业人员都知道的,并且还在比如Alikhan和Schmidt的USP-4,488,928中叙述的梳理方法形成的非织造织物。一般说来,梳理方法包括比如从以经梳理或其它处理的蓬松棉片的形式的短纤维与粘合纤维或其它粘合成分的混合物开始,提供一般是均匀的织物单位重量。将此纤网加热或其它处理,使粘合成分发生作用,得到整体的、一般是膨松的非织造材料。
在本文中所使用的术语“单组分”纤维指的是仅用一种聚合物从一个或几个挤压机中形成的纤维。这并不意味着排除从一种加入少量用于着色、抗静电、润滑、亲水等添加剂的聚合物形成的纤维。这些添加剂的含量一般少于大约5wt%,更一般为大约2wt%。
在本文中所使用的术语“共轭纤维”指的是从不同的挤压机中挤出至少两种聚合物,但在一起纺丝形成一根纤维而形成的纤维。共轭纤维有时也叫多组分纤维或双组分纤维。聚合物一般彼此不同,但是共轭纤维可以是单组分纤维。聚合物的配置一般是在共轭纤维的截面上的基本恒定位置上的不同区域中,而且沿着共轭纤维的长度而连续地伸展。这样的共轭纤维的结构可以是比如皮/芯式排列(其中,一种聚合物包围着另一种)或者是并排式排列或者是海岛式排列。在比如Kaneko等人的USP-5,108,820、Strack等人的USP-5,336,552和Pike等人的USP-5,382,400中公开了共轭纤维。对于双组分纤维,存在的聚合物比可以是75/25、50/50、25/75或者任何其它所需的比例。
在本文中所使用的术语“双成分纤维”指的是从同一个挤压机中以混合物的形式挤出至少两种聚合物而形成的纤维。双成分纤维在纤维的截面上的基本恒定位置上的不同区域中没有不同的聚合物组分,而沿着该纤维的整个长度上不同的聚合物一般是不连续的,反而是通常形成首尾都随机分布的原纤或原生原纤。双成分纤维有时也称作多成分纤维。在比如Gessner的USP-5,108,827中一般性地讨论了这类纤维。
在本文中所使用的术语“聚合物”一般包括,但不限于均聚物、共聚物、三元共聚物等和它们的掺混物以及改性物,而共聚物是比如嵌段共聚物、接枝共聚物、随机共聚物和交替共聚物等。另外,除非另有说明,术语“聚合物”包括该材料的所有可能的几何构型。这些构型包括,但不限于全同立构、间同立构和无规对称立构。
在本文中所使用的术语“吸收材料”指的是任何具有吸收流体性能的材料。
在本文中所使用的术语“个人护理吸收制品”指的是尿布、训练用短裤、吸收内裤、成人失禁制品、抗菌抹布和妇女健康制品如卫生巾和卫生垫。
在本文中所使用的术语“吸入”指的是吸收制品吸收流体的能力。用吸入时间来评价吸收质量,吸入时间较短表示材料能够快速吸收,而吸入时间较长则表示材料的吸收性能较差。
在本文中所使用的术语“污染”指的是在个人护理吸收制品的覆盖材料或面层片的上表面上,或者下表面中或上存在的流体,不管是湿的还是干的。
在本文中所使用的术语“有梯度的孔隙度”指的是一个多孔的系统,其中从系统的一侧向着系统的相对一侧,平均孔隙度是降低(或增加)的。在使用本发明具有孔隙度梯度非织造纤网材料的个人护理吸收制品的情况下,平均孔隙度从面对着吸收制品面层片或盖片所置的非织造纤网材料的一侧向不透液体的背片方向减小。
本发明按照其一个实施方案,提供了一种适合于个人护理吸收制品如卫生垫、卫生巾和卫生棉塞、创伤敷料等方面使用的非织造纤网材料,其目的是吸收和储存含血流体。本发明的非织造纤网材料减小了红血球对流体进入、芯吸能力的影响,而且减少了污染。本发明的非织造纤网材料是一种用流体处理剂处理过的多孔材料,从而使含血流体如经血中的红血球发生附聚或溶解。
按照本发明的一个优选实施方案,此非织造纤网材料孔隙的平均孔径为大约10~大约200μm,以此来保证单个的红血球能够通过非织造纤网材料的最外层孔隙进入其内部,同时又能够保证附聚的红血球不能穿过孔隙接触到可能存在的超吸收剂。
可以用先有技术已知制造非织造纤网材料的任何方法来制造本发明的多孔非织造纤网材料。制造本发明非织造纤网材料的纤维可以通过比如熔喷法或纺粘法来制造,包括制造双组分、双成分或聚合物掺混物纤维的方法,这些在先有技术中都是已知的。这些方法一般都使用挤压机,将熔融的热塑性聚合物供给喷丝头,在这里聚合物形成纤维,产生具有短纤维长度或更长的纤维。然后将纤维牵伸,一般是用气流拉伸,并置于运动的孔板或带上,形成非织造织物。用熔喷法和纺粘法制造的纤维都是微纤维。
另外,非织造纤网可以是粘合梳理的纤网。粘合梳理织物是用一般是成包购买的短纤维制造的。把纤维包放在清棉机上,把纤维分散开。然后把纤维送入一个精梳或梳理装置,在这里进一步把短纤维散开并在机器行进方向排齐,形成按机器方向使纤维取向的非织造纤网。一旦形成了纤网,随后就用几种已知的粘合方法中的一种或几种将它们粘合。一种这样的粘合方法是粉末粘合法,其中在该纤网中分散着粉末粘合剂,一般通过热空气加热纤网和黏合剂使其发生作用。另一种适当的粘合方法是花纹粘接法,其中用加热的轧光辊或超声粘接装置将纤维通常以定位的粘接花纹粘接在一起,虽然如果希望时可以在整个表面来粘接此纤网。另一种适当的粘接方法,特别是在双组分短纤维时使用的是经空气粘合法(through-air bonding)。
按照本发明的一个优选实施方案,本发明的非织造纤网材料是一种多层的层合材料,其中具有不同平均孔隙度的非织造纤网材料层一层在另一层上面层合在一起,就得到了具有如上面所定义的孔隙度梯度的非织造纤网材料。
为了提供红血球和被个人护理吸收制品吸收的含血流体的分离,按照本发明的一个实施方案,用流体处理剂处理此多孔非织造纤网材料,此流体处理剂是一种附聚剂,能够引起红血球一旦与附聚剂接触就会结块。本发明个人护理吸收制品可以使用的适当的附聚流体处理剂包括,但不限于抗体、聚阳离子材料(这是一种带大量正电荷的聚合物)、聚环氧乙烷和聚环氧丙烷的三嵌段共聚物。一种特别适用的三嵌段共聚物是德国BASF公司的商品名为PluronicF-98的商品,这构成本发明的一个特别优选实施方案。PluronicF-98是一种三嵌段共聚物表面活性剂,含有80wt%的聚环氧乙烷和20wt%的聚环氧丙烷,分子量为大约9,000。
我们所进行的研究显示出,需要高于约1wt%浓度的PluronicF-98溶液使血液和经血中的红血球附聚。按照本发明的一个特别优选的实施方案,附聚流体处理剂是2wt%的PluronicF-98溶液。
实施例
将1g 20%的PLURONICF-98溶液与血液混合,将3g得到的混合物涂到一块聚乙烯薄膜上。在5min以后,倒掉血液。在显微镜下观察此“处理过的”血液显示,红血球发生了附聚,而没有溶解。
作为用附聚流体处理剂处理此多孔非织造纤网材料的结果,红血球结块在一起而从经血或血液中“过滤”出来,结果陷在非织造纤网材料的孔隙中。按本发明的一个优选实施方案,此非织造纤网材料包括其作用为“深度过滤器”的孔隙度梯度。没有红血球的残留流体,颜色较淡,结果可能发生的任何泄漏就不容易察觉。此外,被非织造纤网材料和可能存在的超吸收剂所吸收的不含红血球的经血与里面存有红血球的经血相比,其吸收有了改善,因为红血球不再阻塞通过非织造纤网材料(芯吸材料)和超吸收剂。最后,当没有红血球存在时,经血表现出较少的粘弹性,这就改善了流体的吸入、分布和吸收性能。
我们关于表面活性剂如三嵌段共聚物表面活性剂PLURONICF-98可以用作红血球附聚剂而不会发生溶解的发现是特别不寻常的,也是很意外的,因为表面活性剂作为整体已知是会让红血球发生溶解的。迄今为止,据我们所知,能够使红血球附聚而又不会溶解的表面活性剂还是未知的。
除了PLURONIC共聚物表面活性剂以外,按照本发明的一个实施方案,该附聚流体处理剂包括至少一种抗体。得到用于本发明适当的抗体的方法一般是先有技术专业人员已知的,通常涉及将红血球膜注射到动物体内,由动物产生抗体,再从动物身上收获抗体。
按照本发明的另外一个实施方案,流体处理剂是一种聚阳离子的聚合物表面活性剂,即带大量正电荷的线形聚合物。用作按照本发明的一个实施方案的流体处理剂的适当的聚阳离子聚合物,其一个例子是聚赖氨酸。
按照本发明的一个优选实施方案,涂在非织造纤网材料上的流体处理剂是一种红血球溶解剂。我们发现,至少一些按照本发明的溶解剂在浓度低至0.1wt%时其使红血球溶解的能力还是有效的。在本发明个人护理吸收制品中使用的适当溶解剂包括GLUCOPON 220(购自Pennsylvania州Ambler市的Henkel公司的一种辛基聚糖苷)、MASILSF-19(购自Illinois州Gurnee市的PPG工业公司特种化学品分部的一种烷氧基化聚硅氧烷)、非离子表面活性剂LAURETH 7(购自New Jersey州Paterson市的Heterene公司的一种烷氧基化醇类)、非离子的LAURETH 4(购自Heterene公司的一种烷氧基化醇类)、非离子的PPG 5-Laureth 5(购自Henkel公司的一种烷氧基化的醇、两性表面活性剂DERIPHAT 160S(购自Pennsylvania州Ambler市的Henkel/Cospha公司一种烷基取代的氨基酸、阴离子表面活性剂月桂硫酸钠(购自Henkel公司的一种烷基硫酸盐)、两性的MACKAM 15-L(购自Illinois州University Park市McIntyre集团的一种烷基取代的氨基酸)、阴离子的MACKANATE LM-40(购自McIntyre集团的一种磺基琥珀酸盐)、阴离子的STANDOPOL SH124-3(购自Henkel/Cospha公司的磺基琥珀酸盐)和阴离子的HAMPOSYLL-30(购自Massachusetts州Lexington市的Hampshire化学公司的一种肌氨酸盐)。
按照本发明的一个特别优选的实施方案,红血球溶解剂是皂草苷,这是一种包含有与三萜烯或甾族苷元相连的糖部分的高分子量糖苷。一种适当的从皂树皮制造的皂草苷是购自Missouri州St.Louis市的Sigma化学公司的商品。
用在个人护理吸收制品的助于流体处置和提供少污染的吸收材料,其制造方法包括:形成平均孔隙度为大约10-大约200μm的非织造纤网材料,用流体处理剂处理所述非织造纤网材料;该流体处理剂优选是一种附聚剂,它适合于在含血流体中的红血球与此附聚剂或红血球溶解剂接触时引起红血球附聚。适当的附聚剂包括PLURONICF-98、抗体和聚阳离子聚合物。可以以先有技术专业人员所知道的任何手段将流体处理剂涂布在非织造纤网材料上,包括将非织造纤网材料浸入到流体处理剂溶液中,或将流体处理剂直接喷到非织造纤网材料上。
虽然在前面的说明书中,涉及到其一些优选的实施方案叙述了本发明,并以说明为目的给出了许多细节,对于先有技术的专业人员不言而喻的是,只要不超出本发明的基本原理,本发明可以增加实施方案,在这里叙述的某些细节也可以做重大的改变。
Claims (26)
1.一种个人护理吸收制品,它包括:一种用可溶性流体处理剂处理的多孔非织造纤网材料,所述多孔非织造纤网材料的平均孔径为10~200μm,其中所述流体处理剂包括一种含聚环氧丙烷和聚环氧乙烷的三嵌段共聚物。
2.如权利要求1的个人护理吸收制品,其中所述多孔非织造纤网材料包含有孔隙度梯度,其孔径从所述多孔非织造纤网材料的一侧向所述多孔非织造纤网材料相对一侧递增。
3.如权利要求1的个人护理吸收制品,其中所述多孔非织造纤网材料是选自纺粘的、熔喷的、气流成网的和粘合梳理的非织造材料。
4.如权利要求1的个人护理吸收制品,其中所述流体处理剂包括含1wt%~20wt%所述三嵌段共聚物的溶液。
5.如权利要求1的个人护理吸收制品,它进一步包括至少一种分散在整个所述非织造纤网材料中的超吸收剂。
6.如权利要求1的个人护理吸收制品,它包括:
一种基本密封流体的背衬材料;
一种包括可渗透流体的聚合物薄膜的覆盖材料;以及
置于所述覆盖材料和所述背衬材料之间的吸收芯,所述吸收芯包含一种用可溶性流体处理剂处理的多孔非织造纤网材料,所述多孔非织造纤网材料的平均孔径为10~200μm,其中所述流体处理剂包括一种含聚环氧丙烷和聚环氧乙烷的三嵌段共聚物。。
7.如权利要求6的个人护理吸收制品,其中至少一种超吸收剂置于所述吸收芯之中。
8.如权利要求6的个人护理吸收制品,其中所述多孔非织造纤网材料包括孔隙度梯度,使孔隙度向着所述背衬材料的方向而递减。
9.如权利要求6的个人护理吸收制品,其中所述多孔非织造纤网材料是选自纺粘的、熔喷的、气流成网的和粘合梳理的非织造材料。
10.如权利要求6的个人护理吸收制品,其中所述流体处理剂包括含有1wt%~20wt%所述三嵌段共聚物的溶液。
11.用于吸收含有红血球的粘弹性流体的吸收材料,该吸收材料包括:
一种具有置于其中的包括一种含聚环氧丙烷和聚环氧乙烷的三嵌段共聚物的可溶性流体处理剂的多孔合成基底,用于与所述粘弹性流体接触,从而使所述红血球一旦和所述流体处理剂接触时要么附聚,要么溶解。
12.如权利要求11的吸收材料,其中所述可溶性流体处理剂包括一种聚阳离子化合物。
13.如权利要求11的吸收材料,其中所述可溶性流体处理剂包括一种抗体。
14.如权利要求11的吸收材料,其中所述粘弹性流体包括月经血。
15.如权利要求11的吸收材料,其中所述粘弹性流体包括血液和创伤渗出物中的至少一种。
16.具有一个基本密封流体的背衬材料、一个可渗透流体的覆盖材料、一个置于所述覆盖材料和所述背衬材料之间的吸收芯和置于所述吸收芯中的超吸收剂的个人护理吸收制品,其特征在于:
所述吸收芯包括一种用于在与所述吸收芯接触时改变含红血球流体中的红血球的用流体处理剂处理的多孔非织造纤网材料,使得所述红血球不会降低所述超吸收剂的流体吸入速度,所述流体处理剂包括一种红血球附聚剂,该附聚剂包括一种含聚环氧丙烷和聚环氧乙烷的三嵌段共聚物。
17.如权利要求16的个人护理吸收制品,其中所述流体处理剂进一步包括置于所述多孔非织造纤网材料上的可溶性红血球溶解剂。
18.如权利要求16的个人护理吸收制品,其中所述可溶性红血球附聚剂包括一种抗体。
19.如权利要求17的个人护理吸收制品,其中所述红血球溶解剂包括一种皂草苷。
20.如权利要求16的个人护理吸收制品,其中所述多孔非织造纤网材料孔隙的平均孔隙度为10~200μm。
21.一种月经用的器具,该器具包括:
一种基本密封流体的背衬材料;
一种包括可渗透流体的聚合物薄膜的覆盖材料;以及
置于所述覆盖材料和所述背衬材料之间的吸收芯,所述吸收芯包括用可溶性流体处理剂处理的多孔非织造纤网材料,使接触了所述处理剂的红血球或者附聚或者溶解,所述可溶性流体处理剂包括一种含聚环氧丙烷和聚环氧乙烷的三嵌段共聚物。
22.吸收含红血球流体的材料,该材料包括:权利要求1的个人护理吸收制品,其中多孔非织造纤网材料包括一种吸收材料。
23.如权利要求22的材料,其中所述吸收材料包括非织造纤网材料。
24.如权利要求22的材料,其中所述吸收材料包括一种织造材料。
25.如权利要求22的材料,在所述吸收材料中进一步包括至少一种超吸收剂。
26.一种创伤包扎物,它包括:权利要求1的个人护理吸收制品,其中多孔非织造纤网材料包括一种吸收材料。
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-
1998
- 1998-10-30 US US09/183,170 patent/US6350711B1/en not_active Expired - Fee Related
-
1999
- 1999-10-26 TW TW088118270A patent/TW476637B/zh not_active IP Right Cessation
- 1999-10-28 AR ARP990105465A patent/AR021857A1/es unknown
- 1999-10-29 CN CNB998128589A patent/CN1208092C/zh not_active Expired - Fee Related
- 1999-10-29 RU RU2001114502/14A patent/RU2001114502A/ru not_active Application Discontinuation
- 1999-10-29 BR BR9914938-9A patent/BR9914938A/pt not_active IP Right Cessation
- 1999-10-29 WO PCT/US1999/025557 patent/WO2000025835A1/en not_active Application Discontinuation
- 1999-10-29 KR KR1020017005396A patent/KR20010089380A/ko not_active Application Discontinuation
- 1999-10-29 CO CO99068690A patent/CO5100934A1/es unknown
- 1999-10-29 JP JP2000579273A patent/JP2002528232A/ja active Pending
- 1999-10-29 AU AU13339/00A patent/AU766825B2/en not_active Ceased
- 1999-10-29 EP EP99956809A patent/EP1124586A1/en not_active Withdrawn
-
2001
- 2001-11-09 US US10/035,701 patent/US6812169B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109219425A (zh) * | 2016-06-03 | 2019-01-15 | 花王株式会社 | 生理用品 |
Also Published As
Publication number | Publication date |
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US6812169B2 (en) | 2004-11-02 |
CO5100934A1 (es) | 2001-11-27 |
US20020065495A1 (en) | 2002-05-30 |
AU766825B2 (en) | 2003-10-23 |
TW476637B (en) | 2002-02-21 |
KR20010089380A (ko) | 2001-10-06 |
EP1124586A1 (en) | 2001-08-22 |
CN1325314A (zh) | 2001-12-05 |
US6350711B1 (en) | 2002-02-26 |
AR021857A1 (es) | 2002-08-07 |
AU1333900A (en) | 2000-05-22 |
WO2000025835B1 (en) | 2000-07-20 |
JP2002528232A (ja) | 2002-09-03 |
BR9914938A (pt) | 2001-07-10 |
RU2001114502A (ru) | 2003-03-27 |
WO2000025835A1 (en) | 2000-05-11 |
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