CN1344154A - 吸收性物品组合物及用其螯合皮肤刺激物的方法 - Google Patents
吸收性物品组合物及用其螯合皮肤刺激物的方法 Download PDFInfo
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- CN1344154A CN1344154A CN99816378A CN99816378A CN1344154A CN 1344154 A CN1344154 A CN 1344154A CN 99816378 A CN99816378 A CN 99816378A CN 99816378 A CN99816378 A CN 99816378A CN 1344154 A CN1344154 A CN 1344154A
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Abstract
本发明提供吸收性个人护理用品例如尿布、成人失禁三角裤,以及使用方法,所述吸收性个人护理用品包括一种吸收性用品并在其上布置有螯合皮肤刺激物有效量的未改性颗粒性皮肤刺激物螯合剂和亲脂性皮肤健康护理剂。未改性的颗粒性皮肤刺激物螯合剂可以是粘土,如皂土或合成锂皂石。亲脂性皮肤健康护理剂可以是硬脂酸、异链烷烃、凡士林以及它们的组合。
Description
相关在先申请
本发明要求1998年12月31日同时申请的美国临时申请序号60/114,497以及60/114,496的优先权。
发明背景
角质层是皮肤的最外层,提供防止内部水份损失及防止从环境中吸收可能有害的物质的屏障。其结构类似于“砖与砂浆”系统,其中皮肤细胞(砖)包埋于复杂脂质混合物(砂浆)中。这两种成分中任何一种的破坏都可能导致皮肤屏障功能的损坏。
已知在生物液体中经常发现的酶,尤其是蛋白酶和脂肪酶,破坏皮肤屏障功能并导致皮肤炎症。例如,据认为皮肤长期暴露于粪便蛋白酶和脂肪酶是导致婴儿尿布性皮炎的皮肤损伤的主要原因。对接受造口术的个体进行皮肤护理是困难的,因为消化酶经常接触造口术周围的皮肤。这些酶可以降解皮肤蛋白和脂质并引起皮肤刺激。
减少这些酶在皮肤上的作用的组合物和/或材料或物品将能够增强皮肤健康并预防炎性皮肤病如尿布性皮炎。
本领域已知有几种抑制粪便酶作用于皮肤的方法。WO99/45974公开了应用蛋白酶抑制剂的吸收性物品预防尿布性皮炎。在该参考文献中,抑制剂定义为在七个针对确定底物的体外测试中抑制蛋白酶活性的任何物质。这些抑制剂必须达到对IC50(抑制50%酶活性的浓度)的七项判断标准中的至少一项并且可逆或不可逆地抑制一种或多种蛋白酶的水解作用。WO99/26610公开了应用脂肪酶抑制剂的吸收性物品预防尿布性皮炎。上面提到的抑制消化酶作用于皮肤的方法是有局限性的,因为所述抑制剂扩散入皮肤可能通过抑制对正常皮肤功能重要的内源酶而而产生副作用。例如,已知局部应用有效的丝氨酸蛋白酶抑制剂硫酸胆固醇抑制负责正常脱屑的皮肤蛋白酶(JInvest.Dermatol.111:189-193,1998)。用能够扩散入皮肤的蛋白酶抑制剂进行局部治疗可能导致皮肤异常干燥。因此,需要不能穿透皮肤表面并且预防外源酶(如粪便酶)对皮肤内部蛋白的降解作用的物质。WO99/46316公开了制造聚合物抑制剂以抑制粪便蛋白酶介导的皮肤刺激。据称这些聚合物并不穿透皮肤表面,但仍然通过直接抑制针对其它底物的酶的活性而发挥它们的作用。
已经公开了吸附并失活粪便酶并因此预防它们穿透皮肤的组合物。PCT公布WO97/38735和美国专利第5,869,033号指出应用亲有机粘土(如活化的quarternium-18皂土)吸收并失活粪便蛋白水解酶,目的是预防尿布疹。通过用长链有机两亲性化合物(如长链季胺)改性众所周知的粘土而产生这些粘土。建议使用掺有所述亲有机粘土的尿布织物或包含分散在强吸收性(superabsorbent)聚合物中的亲有机粘土的尿布。尚未描述未改性的粘土吸附粪便酶的能力。将所述亲有机性粘土掺入各种医药上合适的载体,如洗剂、乳剂、乳膏、凝胶和其它水性载体。然而,所述载体必须对于所述亲有机性粘土是惰性的,并因此不含结合所述粘土并失活其结合粪便酶的能力的物质。具体地说,所述组合物中应该不包含具有8个碳原子或8个碳原子以上的烃链的物质。该局限性限制了例如,可能增强皮肤屏障功能、润湿和/或营养皮肤的亲脂性皮肤健康护理剂在所述组合物中的使用受到限制。
已经描述了各种亲脂性组合物以预防尿布疹。一般来说,使用含有这些亲脂性皮肤健康护理剂的屏障乳膏、洗剂或软膏剂在皮肤表面提供屏障并治疗皮肤病理状况如尿布疹。常用的亲脂性皮肤健康护理剂包括凡士林、矿物油、天然油和脂肪酸。虽然这些组合物能够增强皮肤的屏障特性,但在许多情况下施用这些化合物于皮肤可能是肮脏而不方便的。一般仅当可见尿布疹体征时,才使用它们。
可以用亲脂性皮肤健康护理剂(如凡士林)处理尿布衬里,所述亲脂性皮肤健康护理剂可以通过正常尿布使用转移到皮肤上。一旦尿布衬里制剂转移到皮肤上,所述制剂就可以提供对粪便和尿的屏障。这些制剂可能需要高浓度的凡士林以保证充分转移到皮肤上以促进皮肤健康。高浓度的凡士林可能肮脏、摸起来油腻并可能损坏吸收性物品如尿布的液体处理特性。凡士林缓慢穿透入皮肤可能导致所述物质涂抹到皮肤以及衣服和其它物品上。
鉴于以上局限性,需要吸附生物液体中的刺激剂(如粪便酶)并且与通过其他机制改善皮肤健康的亲脂性组合物相亲和的组合物。上述预防尿布疹的方法中没有一种探索过组合使用亲脂性化合物和颗粒性物质以吸附酶并因此预防皮肤炎症如尿布性皮炎。此外,以前没有描述未改性的粘土颗粒结合粪便酶的能力。我们发现了以下新发现:亲脂性化合物与颗粒性物质如未改性的粘土协同作用以提供优良的酶结合特性并因此预防对皮肤的损伤。这些组合物可以用作良好的尿布疹预防剂,而将它们掺入吸收性物品如尿布将允许传递所述保健剂到皮肤。
发明简述
本发明提供了吸收性个人护理用品,如尿布和成人失禁短内裤,以及应用方法,包括吸收性物品并在其上布置有效螯合皮肤刺激物的量的未改性的颗粒性皮肤刺激物螯合剂以及亲脂性皮肤健康护理剂。
本发明规定提供:颗粒性皮肤刺激物螯合剂与亲脂性皮肤健康护理剂的组合提供了吸附或螯合生物材料中的刺激物(如粪便酶)并预防由所述刺激物引起的炎性皮肤病(如尿布性皮炎)的良好能力。对这些刺激物的吸附或螯合防止它们穿透皮肤,引起皮肤损伤和炎症。适于实施本发明的组合物包含有效螯合皮肤刺激物的量的未改性的粘土(如皂土或合成锂皂石)以及亲脂性皮肤健康护理剂(如凡士林)。
在本发明的另一实施方案中,证明颗粒性螯合剂和各种亲脂性皮肤健康护理剂具有协同效应。亲脂性皮肤健康护理剂包括,例如,凡士林、硬脂酸(steric acid)、异链烷烃、各种润肤剂、甾醇、脂肪酸、甘油三脂以及蜡。本发明的另一实施方案包括在一次性吸收性物品的机体面(body facing)材料上掺入所述组合物,所述一次性吸收性物品如尿布、训练短内裤、成人失禁用品、短衬裤、妇女护理用品等等。
附图简述
图1代表性地显示依照本发明一个实施方案的吸收性物品的部分剖面俯视图。
图2代表性地显示依照本发明另一个实施方案的吸收性物品的部分剖面俯视图。
图3代表性地显示用未改性的粘土皂土从溶液中螯合胰蛋白酶。
图4代表性地显示图5代表性地显示了未改性的粘土合成锂皂石减少由婴儿粪便提取物引起的皮肤刺激。
图6代表性地显示未改性的粘土合成锂皂石与亲脂性皮肤健康护理剂凡士林的组合减少由模型粪便损害引起的皮肤刺激。
图7代表性地证明在未改性粘土(合成锂皂石)以及包含多种亲脂性皮肤健康护理剂的洗剂在防止胰蛋白酶穿透入皮肤中的协同作用。
发明详述
提供了吸收性个人护理用品,如尿布和成人失禁短内裤,以及应用方法,包括吸收性物品并在其上布置有效螯合皮肤刺激物的量的未改性的颗粒性皮肤刺激物螯合剂以及亲脂性皮肤健康护理剂。
本发明提供了新型组合物及吸收性产品以吸附或螯合机体废物的皮肤刺激物(如粪便酶),进而有益皮肤健康。具体地说,已经发现未改性的粘土颗粒与亲脂性皮肤健康护理剂(如凡士林)的新型组合可以吸附粪便酶并因此防止它们穿透皮肤并引起皮肤炎症。
本文所用的术语“螯合剂”是指通过共价或非共价机制吸附靶分子(如粪便)的物质。在某些实施方案中,所述对于刺激物的亲和力是强大、快速并且不可逆的。所述刺激物吸附于所述螯合剂上应该排除或显著降低靶刺激物穿透入并有可能穿透过角质层的能力。本文所用的术语“螯合”定义为刺激物通过共价或非共价机制结合螯合剂的过程。
涂覆于所述物品的螯合剂(如未改性的粘土)和亲脂性皮肤健康护理剂的量不是至关重要的,并且可以根据本发明公开内容常规确定,前提是使用足量来有效降低由皮肤刺激物(如粪便酶)引起的皮肤损伤和炎症。一般来说,未改性颗粒(如粘土)应用于所述物品上的量是这样的:当用于皮肤时,其浓度至少为50ug/cm2。
粪便蛋白酶吸附于螯合剂上使它们穿透皮肤并引起皮肤刺激的能力最小化。所述螯合剂粒度应该足够大或带有电荷,以便使它们不能穿透皮肤。因此,预期吸附于所述螯合剂表面的任何蛋白酶将不能在皮肤表面下面起作用并引起皮肤损伤和炎症。
也可以通过使用在吸收性结构内结合了螯合剂的材料来达到此目的。在这种情况下,通过使刺激物结合于所述吸收结构本身来实现该益处。皮肤刺激物结合于所述吸收性结构的材料将再次给予皮肤健康益处。对于技术人员来说,使皮肤刺激物结合于沉积在皮肤表面的螯合剂或使它们结合于所述产品上的螯合剂,明显这两种方法并非相互排斥的策略。
目前已经发现特别合适的螯合剂是容易获得的天然粘土,尤其是皂土或合成锂皂石粘土(Southern Clay Products,Inc.)。可以使用许多种众所周知的材料来完成螯合,如吸附性粘土、硅石、二氧化钛(TiO2)、羟基磷灰石、矾土或离子交换树脂。用作螯合剂的合适粘土的例子包括但不限于:皂土、合成锂皂石、蒙脱石、贝得石、锂蒙脱石、滑石粉和富镁蒙脱石。可以使用天然未改性的螯合剂(如粘土、硅石和TiO2)结合相对带电荷的蛋白质性刺激物,如粪便蛋白酶。在本文中下面的螯合剂被称为“未改性的”:如以天然粘土,或者没有从天然状态通过化学方法显著改变净电荷的粘土。未改性的粘土带有电荷,因此是亲水性的。
本文所用的短语“亲脂性皮肤健康护理剂”定义为对油比对水具有更高亲和性、通过直接作用于皮肤而有益于皮肤健康的任何物质。这样的皮肤益处的合适例子包括但不限于增强皮肤屏障功能、增强润湿性以及营养皮肤。
所述亲脂性皮肤健康护理剂可以包括硬脂酸、异链烷烃、凡士林以及它们的混合物。所述亲脂性皮肤健康护理剂也可以选自:脂肪酸、脂肪酸酯、脂肪族醇、甘油三酯、磷脂、矿物油、精油、甾醇、甾醇酯、润肤剂、蜡、润湿剂、表面活性剂以及它们的混合物。在一些实施方案中,所述亲脂性皮肤健康护理剂具有长度大于8个碳原子(C-8)的平均烃链。亲脂性皮肤健康护理剂洗剂组合物的一个例子可市售获得的Vasoline”深度护理洗剂(Cheesborough-Ponds,Inc.)。
本文所用的合适亲脂性皮肤健康护理剂包括但不限于下面按照CTFA命名归类的物质:
脂肪和油:杏仁油、鳄梨油、巴巴苏油、琉璃苣籽油(Borage SeedOil)、奶油、C12-C18酸甘油三酯、山茶油、低芥酸菜籽油、辛酸/癸酸/月桂酸甘油三酯、辛酸/癸酸/亚油酸甘油三酯、辛酸/癸酸/硬脂酸甘油三酯、辛酸/癸酸甘油三酯、胡萝卜油、槚如坚果油、蓖麻油、樱子油、墨西哥油、可可油、椰子油、鳕鱼肝油、玉米胚芽油、玉米油、棉子油、C10-C18甘油三酯、涂蛋油、环氧化豆油、月见草油、三乙酰羟基硬脂酸甘油酯、三乙酰蓖麻酸甘油酯、糖鞘脂、葡萄子油、榛子油、人胎盘脂、混合向日葵油、混合向日葵子油、氢化蓖麻油、氢化蓖麻油月桂酸酯、氢化椰子油、氢化棉子油、氢化C12-C18甘油三酯、氢化鱼油、氢化猪油、氢化鲱油、氢化貂油、氢化橙粗油、氢化棕榈仁油、氢化棕榈油、氢化花生油、氢化鲨鱼肝油、氢化豆油、氢化动物脂、氢化植物油、羊毛脂和羊毛脂衍生物、猪油、月桂酸/棕榈酸/油酸甘油三酯、雷斯克懒勒油、亚麻子油、澳洲坚果油、马来酸豆油、Meadowfoam Seed Oil、鲱油、貂油、辣木油、被孢霉油、牛蹄油、油酸/亚油酸甘油三酯、油酸/棕榈酸/月桂酸/肉豆蔻酸/亚油酸甘油三酯、油硬脂、橄榄壳油(Olive Husk Oil)、橄榄油、网膜脂(Omental Lipid)、橙粗油、棕榈仁油、棕榈油、桃仁油、花生油、金毛狗脊毛油、奶油树黄油、磷脂、乳香黄连木油、胎盘脂、菜子油、米糠油、向日葵油、芝麻油、鲨鱼肝油、牛油树脂、豆油、鞘脂类、向日葵子油、甜杏仁油、松浆油、动物脂、Tribehenin、三癸精、三辛精、Triheptanoin、三羟甲氧基硬脂精、三羟基硬脂精、Triisononanoin、三异硬脂精、三月桂精、三亚油精、三亚麻精、三肉豆蔻精、Trioctanoin、三油精、三棕榈精、Trisebacin、三硬脂精、Triundecanoin、植物油、核桃油、麦糠脂、小麦胚芽油、Zadoary Oil等等以及它们的混合物。
脂肪酸:花生酸、花生四烯酸、山萮酸、癸酸、己酸、辛酸、椰子酸(Coconut Acid)、玉米酸(Corn Acid)、棉子酸(Cottonseed Acid)、氢化椰子酸(Hydrogenated Coconut Acid)、氢化鲱酸、氢化动物脂酸、氢化硬脂酸、异硬脂酸、月桂酸、亚油酸、亚麻酸、亚麻仁酸、肉豆蔻酸、油酸、棕榈酸、棕榈仁酸、壬酸、蓖麻油酸、Soy Acid、硬脂酸、松浆油酸、牛油酸、十一烷酸、十一烯酸、小麦胚芽酸等等以及它们的混合物。
脂肪族醇:山萮醇、C9-C11醇、C12-C13醇、C12-C15醇、C12-C16醇、C14-C15醇、辛醇、Cetearyl Alcohol、鲸蜡醇、椰子醇(Coconut Alcohol)、癸醇、氢化牛油醇、月桂醇、肉豆蔻醇、油醇、棕榈醇、棕榈仁醇、十八烷醇、动物脂醇(Tallow Alcohol)、十三烷醇等等以及它们的混合物。
精油:茴香油、芳香薄荷油、罗勒油、香蜂草油、香柠檬油、桦木油、苦杏仁油、苦橙油、金盏花油、加利福尼亚肉豆蔻油、CarawayOil、小豆蔻油、春黄菊油、肉桂油、鼠尾草油、丁子香叶油、丁子香油、芫荽油、柏油、桉树油、小茴香油、栀子油、香叶油、姜油、圆柚油、酒花油、山香油、槐蓝灌木油、茉莉油、刺柏油、猕猴桃油、月桂油、熏衣草油、柠檬草油、柠檬油、椴树油、圆叶当归油、橘子橙油(Mandarin Orange Oil)、母菊油、麝香蔷薇油、肉豆蔻油、乳香、橙花油、橙油、绿叶油、海地油、薄荷油(Peppermint Oil)、松油、松焦油、玫瑰果油、迷迭香油、玫瑰油、芸香油、鼠尾草油、接骨木花油、檀香油、黄樟油、银枞油、薄荷油(Spearmint Oil)、甘牛至油、香堇菜油、焦油、茶树油、百里香油、野生薄荷油、蓍草油、衣兰油等等以及它们的混合物。
甾醇和/或甾醇衍生物:本文所用的合适的甾醇和甾醇衍生物包括但不限于下列物质:在17位有尾但不具有极性基团的甾醇,例如胆甾醇、谷甾醇、豆甾醇和麦角甾醇,以及C10-C30胆甾醇/羊毛甾醇酯、胆钙化甾醇、羟基硬脂酸胆甾醇酯、异硬脂酸胆甾醇酯、硬脂酸胆甾醇酯、7-脱氢胆甾醇、二氢胆甾醇、辛基癸酸二氢胆甾醇、二氢羊毛甾醇、辛基癸酸二氢羊毛甾醇、麦角钙化醇、松浆油甾醇(tall oilsterol)、乙酸大豆甾醇酯(soy sterol acetate)、羊毛甾醇、大豆甾醇(soysterol)、颚梨甾醇、avocadin、甾醇酯等等以及它们的混合物。
润肤剂:本文所用的合适的润肤剂包括但不限于下列物质:矿物油、矿物胶、凡士林、润肤酯(cosmetic ester)、脂肪族酯(fatty ester)、甘油酯、烷氧基化羧酸、烷氧基化醇、脂肪族醇、羊毛脂和羊毛脂衍生物、凡士林基油(petrolatum base oil)、聚硅氧烷、脂肪、氢化植物油、聚羟基酯等等以及它们的混合物。
蜡:本文所用的合适的蜡包括但不限于下面的物质:天然蜡和合成蜡,如月桂子蜡、蜂蜡、C30烷基二甲基硅氧烷、小烛树蜡、carnuaba、纯地蜡、鲸蜡基酯、氢化棉子油、氢化霍霍巴油、氢化西蒙得木蜡、氢化微晶蜡、氢化米糠蜡、野漆树蜡、霍霍巴脂、霍霍巴酯、西蒙得木蜡、羊毛脂蜡、微晶蜡、薄荷蜡、二十九烷酸蜡、蒙坦蜡、小冠巴西棕蜡、天然地蜡、石蜡、PEG-6蜂蜡、PEG-8蜂蜡、米糠蜡、紫胶蜡、spent grain wax、硬脂基二甲基硅氧烷合成蜂蜡、合成小烛树蜡、合成巴西棕榈蜡、合成野漆树蜡、合成西蒙得木蜡、合成蜡等以及它们的混合物。优选的蜡包括但不限于:carnuaba、野樱素、鲸蜡基酯、微晶蜡、蒙坦蜡、天然地蜡、合成蜡等等以及它们的混合物。
所述组合物也可包含湿润剂以增强皮肤屏障功能和/或使皮肤湿润。湿润剂一般是用于增加皮肤表层水分含量的润肤剂成分。该组物质主要包括吸湿性成份。本文所用的合适湿润剂包括但不限于下列物质:乙酰胺MEA、芦芸凝胶、精氨酸PCA、脱乙酰壳多糖PCA、铜PCA、玉米酸甘油酯(Corn Glyceride)、二甲基咪唑啉酮、果糖、葡糖胺、葡萄糖、葡糖谷氨酸、葡糖醛酸、谷氨酸、Glycereth-7、Glycereth-12、Glycereth-20、Glycereth-26、甘油、蜂蜜、氢化蜂蜜、氢化淀粉水解产物、水解玉米淀粉、乳酰胺MEA、乳酸、乳糖赖氨酸PCA、甘露糖醇、Methyl Gluceth-10、Methyl Gluceth-20、PCA、PEG-2乳酰胺、PEG-10丙二醇、聚氨基糖缩合物、PCA钾、丙二醇、丙二醇柠檬酸酯、糖类水解物、Saccharide Isomerate、天冬氨酸钠、乳酸钠、PCA钠、山梨醇、TEA-乳酸盐、TEA-PCA、尿素、木糖醇等等以及它们的混合物。
所述组合物还可以包括乳化表面活性剂。表面活性剂包括但不限于:失水山梨糖醇单油酸酯、失水山梨糖醇倍半油酸酯、失水山梨糖醇三油酸酯、甘油硬脂酸酯、失水山梨糖醇硬脂酸酯、失水山梨糖醇三硬脂酸酯等等以及它们的混合物。
所述组合物还可以包括粘度增强剂。本文所用的合适粘度增强剂包括但不限于下列物质:聚烯烃树脂、聚烯烃聚合物、乙二醇二乙酸酯/醋酸乙烯酯共聚物、聚乙烯等等以及它们的组合物。亲脂性皮肤健康护理剂洗剂组合物可以包括湿润剂、表面活性剂以及粘度增强剂,它们的含量占所述亲脂性皮肤健康护理剂组合物总重的约0.1%到约10.0%。
对于本领域内的技术人员显而易见的是可能需要在本发明的组合物中加入其它物质。实例包括但不限于:可接受的载体、消炎药、抗微生物剂、退热剂(anti-puretics)、皮肤保护剂、缓冲剂、羟酸、微生物提取物或藻类提取物和/或其部分、酶抑制剂、抗组胺剂、抗氧化剂、镇痛药、抗氧化剂、收敛剂、香料、染料、天然或合成维生素类似物、防晒剂、除臭剂及它们的组合物。
再一方面,本发明的特征在于具有包含洗剂的包衬复面纸(topsheet)的吸收性物品,其中在其接触肌体的外表面包含亲脂性皮肤健康护理剂以及皮肤刺激物螯合剂。
在一个具体实施方案中,肌体面材料包含洗剂制剂,其中所述洗剂制剂包含基于所述洗剂总重量的约5.0到约95.0重量百分比的亲脂性皮肤健康护理剂或其混合物,基于所述洗剂总重量的0.1到25.0重量百分比的颗粒性皮肤刺激物螯合剂,并任选包含基于所述洗剂总重量的约0.1到约25.0重量百分比的粘度增强剂。可以通过本领域内已知的方法涂覆所述洗剂制剂,所述方法如喷雾、槽孔涂覆(slotcoating)或印花(printing)。
在本文中使用的术语“肌体面材料”包括但不限于如下列的材料:体侧衬里;弹性材料;薄纱;吸入和分配材料、吸收性材料,包括但不限于coform、织造材料和非织造材料、底层(back sheet)衬里材料、或本领域内已知的用于或可以用于构建个人护理吸收性用品的任何其它材料,所述个人护理吸收性用品如尿布、训练短内裤、吸收性短衬裤、成人失禁用品、妇女卫生用品。术语“肌体面材料”理解为包括通常与穿着者的皮肤接触的材料以及与穿着者的皮肤不经常接触的材料。本发明的肌体面材料可以是单层的或多层的。
本发明的组合物可以涂覆于所述吸收性物品的特定部分或组件,或涂覆于在使用所述吸收性物品时所述吸收性物品与穿着者的皮肤接触的整个表面。此外,所述组合物可以以不同浓度或沉积量施用于所述吸收性物品或其部分的皮肤接触面。涂覆所述组合物,以便在使用所述吸收性物品期间所述组合物可以通过与使用者的皮肤接触而得到传递。可以在将所述肌体面材料加入所述吸收性物品后涂覆所述组合物,或可以在将所述肌体面材料加入所述吸收性物品之前涂覆所述组合物。短语“有效量”的所述组合物是指如下量的本发明的组合物:当以该量涂覆本发明的组合物于所述肌体面材料时,将有效螯合皮肤刺激物如粪便酶。
本文所用的术语“吸收性物品”指用于吸收并容纳体液的物品或产品。一次性吸收性物品10包括用于吸收体液并使皮肤干燥的产品,例如尿布、训练短内裤、成人失禁产品、吸收性短衬裤、妇女护理用品。
这种类型的一次性吸收性物品10一般包括液体不能渗透的支持层部分(back sheet member)12、吸收核心14或吸收组件16以及液体可以渗透的体侧衬里18。(见图1和图2)。体侧衬里18或薄纱材料20与穿着者的皮肤接触。一般来说,所述支持层部分12连接到体侧衬里18,并将所述吸收核心14置于所述支持层部分12和所述体侧衬里18之间。下面将讨论一般类型的这些成分,即支持层部分12、体侧衬里18和吸收核心14。
一般来说,所述吸收核心14吸收并保留体液,如尿、经血及其它机体渗出液。所述吸收核心14最好对于穿着者的皮肤是可压缩、相适应并且非刺激性的。所述吸收核心14可以采取多种大小和形状,如矩形、卵形、沙漏状、“T”形、不对称、狗骨状等等。所述吸收核心14可以由各种各样一般用于吸收性物品10的液体吸收性材料构成。吸收核心14一般包括多孔性纤维基质22和强吸收性材料24。
吸收核心14的多孔性纤维基质22最好是绒毛状强吸收性材料24的气流成网棉胎,可以采用多种方法形成所述气流成网棉胎,例如依照Mazurak和Fries在美国专利4,381,782中指出的方法,该专利的全部公开内容通过引用以其与此一致的程度结合到本文中。所述吸收核心14可以包括强吸收性材料24(SAP)和纤维22的气体成型(air-formed)的混合物,最好是短纤浆。所述绒毛纤维22与强吸收性材料24的混合物可以是均一的、渐变的或分层的。同样,可以使用除短纤浆外的纤维22,如化学方法硬挺强化的浆粕及热机械浆粕。
此外,所述吸收核心14可以包括除气体成型的绒毛22和SAP24外的吸收性材料。例如,在Lau的美国专利4,818,464和Anderson的美国专利4,100,324中提到的coform材料可用于制造所述吸收物品,只要它们也包含强吸收性材料。此外,也可以使用湿法成型合成材料,包括Anderson等人的美国专利5,651,862中公开的包含纤维和强吸收性材料的复合材料。通过乳胶粘合或通过空气粘合结合在一起的其中包含纤维、粘合纤维及强吸收性材料的混合物的稳定气流成网材料也可以用作吸收性材料。此外,本领域内已知的任何用于吸收机体渗出液的材料可以用于构建本发明所显示的吸收核心14。
所述强吸收性材料24一般是水凝胶聚合物,最好是它充分交联以使得所述材料基本不溶于水。例如,可以通过照射或通过共价键合、离子键合、范德华键合或氢键键合形成交联。可以从不同的商业销售商获得合适的材料,例如Dow Chemical Company(Drytech 2035LD)、Hoechst-Celanese Corporation和 Allied-Colloid。一般来说,所述强吸收性材料24能够吸收至少其约15倍重量的水,并最好能够吸收超过其重量约25倍的水。
可以使用不同技术将所述强吸收性材料24分散入或以其它方式加入所述吸收核心14中。例如,所述强吸收性材料24可以基本均一地分布于组成吸收核心14的纤维22中。所述材料24也可以不均一地分布于所述吸收核心14的纤维22内以形成强吸收材料24的浓度逐渐增加或降低的总体上连续的梯度,所述梯度通过观察所述浓度从支持层部分12向内的变化所确定。或者,所述强吸收性材料24可以构成独立于所述吸收核心14的纤维22的独立层,或可以构成与所述吸收核心14形成整体的独立层。
所述吸收核心14还可以包括外套层26以帮助保持纤维性吸收核心14的完整性。(见图2)。该外套层26可以包括纤维素薄纱或纺丝粘合的、熔体喷射的或粘合-机梳的由合成聚合物长丝(如聚丙烯、聚乙烯、聚酯等等)或天然聚合物长丝(如人造丝或棉花)组成的网状材料。所述外套层26可以用与用于体侧衬里18的材料的相同材料制成,或可以用与用于体侧衬里18的材料不相同的材料制成。在一些情况下,可以不使用体侧衬里18,而外套层26(也称为薄纱材料20)用作所述吸收性物品10的体侧层18,与穿着者的皮肤接触。
所述吸收核心14可以包括其它成分以协助获取、分配及贮藏机体渗出液,如除尘层(dusting layer)、传送层、芯吸层或获取/分配层、摄入层或平衡层(surge layer)。见Meyer等人的美国专利4,798,603,或平衡处理层(surge management layer),如在下面专利中描述的平衡处理层:Bishop等人的美国专利5,486,166、Latimer等人的美国专利5,364,382、Ellis等人的美国专利5,490,846、Latimer等人的美国专利5,429,629、Hanson等人的美国专利5,509,915、Proxmire等人的美国专利5,192,606。
所述体侧衬里18由接触穿着者的皮肤的非织造材料或其它柔软材料制成。所述体侧衬里18具有朝向穿着者的外(外部)表面28以及背对穿着者的内(内部)表面30。所述体侧衬里18在下面详细描述。所述体侧衬里18对于穿着者是柔顺(compliant)并且感觉柔软的。所述体侧衬里18可以是任何水性液体可渗透的柔软、柔韧、多孔的层,允许水性液体容易地穿透其厚度。合适的体侧衬里18可以由以下材料制造:各种材料如天然纤维(如木纤维或棉花纤维)、合成纤维(如聚酯纤维或聚丙烯纤维),或天然纤维与合成纤维或网状泡沫体与有孔塑料薄膜的组合物。
所述体侧衬里18由水性液体可渗透的材料形成,以便水性液体废物(可能还有半固体废物)可以穿过到达吸收核心14并且被所述吸收性物品10的吸收核心14吸收。合适的体侧衬里18可以由以下材料制成:无纺织物,纺丝粘合的、熔体喷射的或粘合-机梳的由合成聚合物长丝或纤维(如聚丙烯、聚乙烯、聚酯等等)组成的织物,有孔膜,织物或天然聚合物长丝或纤维(如人造丝或棉花)。
此外,可以用表面活性剂处理所述体侧衬里18以协助转移水性液体。适当时,所述体侧衬里18为非织造纺粘型织物(nonwovenspunbond)。所述合适的纺粘型材料可以从位于Roswell,GA的Kimberly-Clark Corporation购得。所述体侧衬里18的重量为每平方码0.3oz.(osy)到约2.0osy或者约0.5osy。在所述短衬裤的体侧衬里18上可以印花、着色或装饰性地压花。所述体侧衬里18可以是无纺织物或聚烯烃纤维层,所述聚烯烃纤维如聚丙烯、聚酯、聚乙烯、人造丝、chisso等等。所述体侧衬里18也可以是有孔的塑料薄膜、泡沫塑料网状材料或纱布(scrim)材料。所述体侧衬里18具有空气、汗水容易通过的孔径,并且由于所述材料的透气性而允许穿过。对所述体侧衬里18可以选择性地进行压花或穿孔成穿透的不连续狭缝或小孔。
最好用表面活性剂对体侧衬里18的织物进行表面处理,所述表面活性剂如可以从Danbury,Connecticut,美国的Union CarbideChemicals and Plastic Company,Inc.购得商品名为TRITON X-102的表面活性剂。本文所用的术语“织物”是指所有机织、针织及无纺的纤维织物。术语“无纺织物”是指不通过织物编织或针织工艺而形成的织物材料。
作为替代材料,水性液体渗透的体侧衬里18可以由结合于纺粘型聚丙烯或聚乙烯载体层的聚酯纤维机梳织物制成。所述机梳材料由约百分之20到约60重量百分比的聚丙烯或聚乙烯以及约百分之80到约40重量百分比的聚酯制成。该材料的基本重量约30g到约70g。
当体液流进所述吸收性物品10的吸收核心14时,需要所述支持层部分12必须防止水性液体穿透到外部衣物。所述支持层部分12通常由水性液体不渗透膜如聚乙烯构成。所述水性液体不渗透的支持层部分12具有背对穿着者的外(外部)表面32以及朝向穿着者的内(内部)表面34。在构建一次性吸收性物品10时,起屏障作用的所述支持层部分12应当通过使所述支持层部分12抵抗在穿着条件下通常遇到的穿透而阻挡水性液体穿过所述吸收性物品10。所述支持层部分12最好包括形成或处理为水性液体不渗透的材料。
或者,所述支持层部分12可以包括水性液体可渗透的材料和其它合适装置(未显示),例如提供与所述吸收核心14连接的水性液体不渗透层,以阻止水性液体离开所述吸收性物品10的吸收核心14。可以通过本领域内任何众所周知的方法(如涂覆所述吸收核心14或将一层水性液体不渗透材料固定于所述吸收核心14),使所述一次性吸收性物品10成为水性液体不渗透的。所述支持层部分12可以包括薄的、水性液体不渗透的织物或塑料薄膜层,如聚乙烯、聚丙烯、聚氯乙烯或相似材料。其它可接受的材料包括单层上述类型材料的纺粘层、双层的纺粘及熔体喷射材料或三层的纺粘-熔体喷射-纺粘材料。也可以使用合适的泡沫材料以及水性液体不渗透而透气的材料。
或者,所述支持层部分12可以包括已经经过适当构建及处理而水性液体渗透性小的非织造纤维织物。或者,所述支持层部分12可以包括多层或层压材料,例如热键合的塑料薄膜以及无纺织物复合材料。或者,所述支持层部分12由正常穿着条件下水蒸汽可渗透的而水性液体不渗透的薄膜或泡沫构成。根据ASTM E96-92测定,所述支持层部分12具有至少约800克/m2/24小时的水蒸汽传输率。合适薄膜的一个例子是由Mitsui生产、Consolidated Thermoplastics(CT)销售的商品名为ESPOIR”N-TAF-CT的微孔性薄膜,该微孔性塑料薄膜每平方米39.4克重。
所述吸收性物品10在以下部位还可以包含弹性组分36:腰部42(在短衬裤及三角裤的吸收性物品10中)、围绕腿开口38和40的区域、松紧带(fit elastics)的腰部部分(未显示)(在如短内裤的吸收性物品10中)、侧面嵌条(side panel)(未显示)(在如三角裤及短内裤的吸收性物品10中)以及折翼或屏障结构(未显示)中。所述弹性组分36可以采取条、带、连接的条或带、薄片、绳、细带、线、细丝的形式或这些形状的任何组合以及本领域内已知的其它形状。所述弹性组分36也可以是在放置入所述吸收性物品10后活化的潜在弹性材料。
本发明的组合物在30摄氏度是固体或半固体。本文所用的术语“半固体”指具有假塑性流体或塑性流体典型的流变学的组合物。由于所述组合物在室温下处于至少半固体的状态,因此使得所述组合物的迁移最小化。所述在室温下是固体或半固体的组合物并没有迁移进入所述体侧衬里18或所述薄纱材料20并最终进入所述组合物所涂覆的吸收性物品10的趋势。所述组合物通过正常接触、穿着者的运动或穿着者的体热转移到穿着者的皮肤。
所述体侧衬里18或所述薄纱材料20包含有效量的本发明的组合物。本文所用的术语“肌体面材料”可与术语“体侧衬里”及“薄纱材料”互换使用。本文所用的短语“有效量”的所述组合物是指当将所述组合物涂覆于体侧衬里18或所述薄纱材料20时,有效降低刺激作用的所述组合物的量。
将所述组合物涂覆于所述吸收性物品10的所述体侧衬里18或薄纱材料20的外表面28。可以使用均匀分布具有熔化或液体一致性的润滑材料的多种涂覆方法中的任何一种。合适的方法包括喷雾、槽孔涂覆、印花(如橡胶版轮转印刷)、涂层(如凹板涂覆)、挤压,或这些方法的组合,例如将所述组合物喷雾于旋转的表面,然后将所述组合物转移到所述体侧衬里18或所述薄纱材料20的外表面28。
将所述组合物涂覆于所述体侧衬里18或所述薄纱材料20的方式应当使得所述体侧衬里18或所述薄纱材料20被所述组合物饱和。假如所述体侧衬里18或所述薄纱材料20被所述组合物饱和,那么所述体侧衬里18或所述薄纱材料20的液体通透性可能会降低或受到妨碍。此外,饱和所述体侧衬里18或所述薄纱材料20不是本发明的组合物获得治疗或保护益处必需的。
可以使用多种固定装置44将所述吸收性物品10固定在穿着者周围或使其与穿着者接触,所述固定方式包括带式扣件、腰带、带子、一次性或可重复使用的衣物、以及机械型扣件。所述机械型扣件包括扭扣、扭扣眼、摁扣、搭扣、扣钩、钩和环、末端延伸(endextension)、小条等等,它们设计或适用于互锁或连接所述吸收性物品10的某些互补装置或外套。用于这样的机械扣合元件的合适连接元件包括自连接的几何形状材料,如钩、环、摁扣、搭扣、球状物、蘑菇状物、箭头状物、茎球、阴阳接合零件对等等。此外,也使用弹性扣件保证这样的吸收性物品10的更好配合。一些固定系统及固定组件的例子公开于下面专利:Kuen的美国专利第5,423,789号;Roessler等的5,405,342;Roessler等的5,403,302;Roessler等的5,399,219;Kuen等的5,386,595;Keuhn,Jr.等的5,374,262;Siebers等的5,318,555;Kuen的5,304,162;Roessler等的5,288,546;Roessler等的5,176,671;Roessler等的5,176,671;以及Roessler等的5,019,073。
所述一次性吸收性物品10也可以包括折翼或垫片结构(未显示)。这些折翼或垫片结构可以以多种不同的布局装配,包括在以下专利中公开的布局:颁发给Enloe的美国专利4,704,116、颁发给Enloe的美国专利4,846,823、颁发给Enloe的美国专利5,413,570、颁发给Enloe的美国专利5,415,644以及颁发给Enloe的美国专利5,599,338。
可以将本发明的组合物涂覆于所述体侧衬里18或所述薄纱材料20的整个外表面28或其部分。最好将所述组合物涂覆为以所述一次性吸收性物品10的纵向中心线46为中心排列的条纹或图案。(见图1)。所述条纹或图案的尺寸将随着所述组合物涂覆的不同吸收性物品10而变化。
本发明的组合物可以不均一地涂覆于所述体侧衬里18或所述薄纱材料20的外表面28。本文所用的术语“不均一地”是指所述组合物的量、分布型、涂覆厚度等等在所述体侧衬里18或所述薄纱材料20的外表面28上可以有所不同。可以将所述组合物仅仅涂覆于所述体侧衬里18或所述薄纱材料20的内表面30上,或者同时将所述组合物涂覆于外表面28上。
可以在装配所述吸收性物品10的过程中的任何时间点将本发明的组合物涂覆于所述体侧衬里18或所述薄纱材料20。例如,在将所述织物加工为体侧衬里18或所述薄纱材料20之前,用本发明的组合物处理的制成所述体侧衬里18或所述薄纱材料20的原材料;在将所述体侧衬里18或所述薄纱材料20加入所述吸收性物品10之前,用所述组合物处理所述体侧衬里18或所述薄纱材料20;以及,在将所述体侧衬里18或所述薄纱材料20加入所述吸收性物品10之后,用所述组合物处理所述体侧衬里18或所述薄纱材料20。
实施例
实施例1未改性的粘土螯合溶液中的粪便蛋白酶胰蛋白酶A.皂土
本实施例展示了新的发现:未改性的粘土可以有效地吸附或螯合刺激性粪便酶。制备贮液
用缓冲液A(50mM乙酸钠,150mM NaCl,pH5.5)将猪胰的胰蛋白酶(T-0134,Sigma Chemical Co,St.Louis MO)制备成为4_g/mL的贮液。用相同缓冲液以4mg/ml的浓度制备未改性的粘土(皂土,目录号B-3378,Sigma Chemical Co.,St Louis,MO)。在室温下温育至少20分钟复制粘土后,用缓冲液A以1,2.5,5,10,20,40及80_g/ml的浓度制备皂土的工作贮液。螯合测定
在其中一份500μl皂土工作贮液中加入胰蛋白酶(500μl贮液),混合,随后在室温下温育15分钟。随后通过在Eppendorf5415C微量离心机中以14,000rpm离心5分钟,从所述悬浮液中去除皂土颗粒。从上清液中取出等份(10μl)以测量未结合的酶。胰蛋白酶测定
通过定量测定合成胰蛋白酶底物Boc-Gln-Ala-Arg-AMCHCl,(Bachem,Inc.目录号I-1550)的水解测定未结合的酶。通过在室温下监测所述底物第4到第10分钟的水解,测定反应速率。通过使用配备有355nm激发滤色片和460nm发射滤色片的FluoroskanAscent微量培养板荧光计(Labsystems,Inc.)测量释放出来的AMC荧光团,确定水解速率。
如在图3中可以注意到的,未改性的粘土皂土有效从缓冲溶液中去除胰蛋白酶。B.合成锂皂石
本实施例展示了新的发现:lapointe可以有效地吸附或螯合刺激性粪便酶。制备贮液
将猪胰的胰蛋白酶(T-0134,Sigma Chemical Co,St.Louis MO)在缓冲液A(50mM乙酸钠,150mM NaCl,pH5.5)中制备成为4_g/mL的贮液。在相同缓冲液中以4mg/ml的浓度制备未改性的粘土(合成锂皂石,LAP-RD Micro Sample#12566-6/2028,Southern Clay Products,Inc.Gonzales,TX)。在室温下温育至少20分钟以重建粘土后,在缓冲液A中以1,2.5,5,10,20,40及80_g/ml的浓度制备合成锂皂石的工作贮液。螯合测定
在其中一份500μl合成锂皂石工作贮液中加入胰蛋白酶(500μl贮液),混合,随后在室温下温育15分钟。然后通过在Eppendorf5415C微量离心机中以14,000rpm离心5分钟,从所述悬浮液中去除合成锂皂石颗粒。从上清液中取出等份(10μL)以测量未结合的酶。胰蛋白酶测定
通过定量测定合成胰蛋白酶底物Boc-Gln-Ala-Arg-AMCHCl,(Bachem,Inc.I-1550)的水解测定未结合的酶。通过在室温下监测所述底物第4到第10分钟的水解,测定反应速率。通过使用配备有355nm激发滤色片和460nm发射滤色片的Fluoroskan Ascent微量培养板荧光计(Labsytems,Inc.)测量释放出来的AMC荧光团,确定水解速率。
在图4中可以注意到,未改性的粘土合成锂皂石有效从缓冲溶液中去除胰蛋白酶。在40ug/ml合成锂皂石的浓度下,所有2ug测定胰蛋白酶都从溶液中被有效去除。
实施例2在人类皮肤模型EpiDerm中,合成锂皂石降低由粪便提取物引起的皮肤刺激
本实施例展示了未改性的粘土合成锂皂石如何降低婴儿粪便成分导致人类皮肤模型EpiDerm_(MatTek Corp.,Ashland,MA)的前炎症反应(释放白细胞介素-1α)的能力。分离婴儿粪便提取物
从患尿布疹的婴儿的粪便中分离刺激性粪便成分。将粪便以重量比(1∶5粪便∶水)悬浮于水中并剧烈混合。混合之后,将所述样品在4_C下于15,000xg离心20分钟。上清液经过0.22_M孔径醋酸纤维素滤膜过滤并贮存在-80C下备用。根据实施例1中的方法检测所述粪便提取物中的胰蛋白酶活性。检测到的活性量相当于5850皮摩尔/ml的牛胰的胰蛋白酶。还检测所述粪便提取物中的另一种粪便蛋白酶即弹性蛋白酶的活性。通过定量测定底物Ac-Ala-Ala-Pro-Ala-AMC(Bachem,Inc.,目录号I-1000)的水解,测定该酶。存在的酶活性量相当于浓度为84皮摩尔/ml的弹性蛋白酶。体外皮肤刺激测定
使用皮肤模型EpiDerm_,(MatTek,目录号EPI-200-HCF序列号1343)(Ashland,MA)测定颗粒性粘土预防粪便蛋白酶介导的皮肤炎症的能力。
依照生产商的说明制备EpiDerm_肤模型。将20_L等份的用水以0,0.1,0.5,1和2%制备的合成锂皂石涂敷于皮肤表面。随后将所述EpiDerm在37_C5%CO2培养箱中温育15分钟。然后将所述粪便提取物(20μl)涂覆于所述EpiDerm皮肤模型的上表面。使用水作为阴性对照。在施用所述处理及对照后,将所述皮肤模型在37_C及5%CO2下温育7小时。在温育期结束后,取出下面的培养基,使用ELISA(R&D Systems,Minneapolis,MN目录号DLA50)定量测定白细胞介素α的量。
如图5所示,在所述皮肤模型中,未改性的合成锂皂石粘土降低由粪便提取物引起的前炎症反应。当加入0.5,1.0和2.0%的合成锂皂石时,白细胞介素α释放的降低达到统计学显著性(Student’s t-检验,p<0.05)。这些数据支持使用非衍生的粘土通过螯合粪便刺激物而改善皮肤健康。
实施例3当用亲脂性皮肤健康护理剂配制未改性的粘土时,它有效螯合粪便酶
进行试验以阐明分散于载体中的未改性的颗粒性螯合剂能够结合尿布环境有关的蛋白酶。通过测定在暴露于仅有凡士林和凡士林及螯合剂后水性液体中的蛋白酶的去除,从而测定蛋白酶螯合。此外,使用荧光标记标记的蛋白酶允许直接显示结合于分散在凡士林中的螯合剂的蛋白酶。螯合剂/凡士林分散液的制备
用凡士林(Glenpure L:Glen Corporation,St Paul,MN)制备20wt%合成锂皂石XLG(Southern Clay,Gonzales,TX)的悬浮液:在50_C下低剪切混合,然后冷却。得到的混合物用纯凡士林稀释,制备低wt%的粘土悬浮液。螯合测定
在直径5cm的铝称量锅(weighing pan)中,于50_C下熔化包括或不包括螯合剂的2克凡士林样品。在室温下冷却后,形成一片薄的连续的凡士林薄膜。然后将所述样品暴露于代表性粪便蛋白酶溶液。通过在所述锅中加入5ml在10mM TRIS缓冲盐溶液(pH=7.8;150mM NaCl)中浓度为300ng/ml的胰蛋白酶(Sigma T-0134)达到此目的。从所述锅中的溶液定期取样,测定存在的蛋白酶活性。蛋白酶测定
使用Molecules Probes(Eugene,OR;目录号E-6638)的EnzChek蛋白酶测定试剂盒,按照他们建议的程序测定蛋白酶活性。简要地说,将50_1已知或未知蛋白酶溶液的样品加入4ml含有2.7ng/ml荧光(BODIPY-FL)标记的酪蛋白的水溶液。荧光酪蛋白底物的水解导致溶液荧光的增加。使用Turner D700滤色器荧光计(Molecular Probes,Eugene,OR)在Ex/Em=495/515nm于目标时间点测定样品溶液的荧光。荧光量以相对单位表示,即相对荧光单位(RFU)。荧光产生速率增加等于样品的蛋白酶活性水平升高。通过绘制标准曲线可以定量测定样品中存在的蛋白酶活性,在标准曲线中用荧光产生速率定义目标蛋白酶的已知浓度。然后将该结果表达为需要产生相似荧光信号的蛋白酶的量。或者,通过测定RFU值作为时间的函数的变化,可以定量评估蛋白酶活性。
使用上面概述的方法,测定含有0或10.0wt%的合成锂皂石的凡士林从溶液中螯合蛋白酶的能力。在该试验中还包括未暴露于任何制剂的对照胰蛋白酶溶液(3.7ng/ml)。当观察到蛋白水解活性降低到低于载体对照(不含螯合剂的凡士林)的蛋白水解活性时,蛋白水解活性的降低是由于酶从溶液中去除了。
表1:残留在溶液中的活性胰蛋白酶量(ng/ml)与时间的关系
接触时间(小时) | 胰蛋白酶对照溶液 | 不含合成锂皂石的凡士林 | 含有10%合成锂皂石的凡士林 |
2 | 4.4 | 4.8 | 2.7 |
4 | 5.2 | 5.0 | 3.1 |
20 | 4.4 | 4.6 | 0.4 |
在对照胰蛋白酶溶液及接触纯凡士林的胰蛋白酶溶液之间没有检测到差异。与此相比,在接触含合成锂皂石的凡士林的溶液中,在接触两小时后,检测到其蛋白水解活性相对于对照是降低的。在20小时后,测得接触含凡士林的粘土的溶液相对于对照的胰蛋白酶活性降低10倍。
使用与上面描述类似的方法测定合成锂皂石去除胰蛋白酶的剂量依赖性。制备含0到20wt%合成锂皂石的凡士林样品。使在10mMTRIS缓冲盐溶液中含有400ng/ml胰蛋白酶的溶液如上所述接触凡士林样品。接触20小时后,测定蛋白酶活性的量。测得的酶活性量用于定量残留在溶液中的活性胰蛋白酶量。
表2:凡士林中的合成锂皂石对胰蛋白酶的结合
在凡士林中存在的合成锂皂石(wt%) | 残留在溶液中的胰蛋白酶(ng/ml) |
0.0 | 13.1 |
0.5 | 9.5 |
1.0 | 9.0 |
5.0 | 0.0 |
10.0 | 0.2 |
20.0 | 0.0 |
从400ng/ml溶液中去除所有可检测的胰蛋白酶所需的凡士林中的合成锂皂石含量在1.0到5.0wt%之间。低至0.5wt%的合成锂皂石水平足以降低在所述溶液中检测到的胰蛋白酶的量。
实施例4在人类皮肤模型EpiDerm中,分散于凡士林中的合成锂皂石降低由粪便损害引起的前炎症反应
评估当将分散于凡士林中的合成锂皂石涂敷于人类皮肤模型EpiDerm_(MatTek Corp.,Ashland,MA)时,其降低由粪便蛋白酶混合物引起的前炎症反应的能力。以50mM乙酸钠pH5.5和0.15M NaCl制备10mg/ml的蛋白酶混合物(胰蛋白酶-胰凝乳蛋白酶,SpecialityEnzymes and Biochemicals Co.,Chino,CA,序列号809023,含有不少于2,500USP单位/mg的胰蛋白酶及不多于300USP单位/mg的胰凝乳蛋白酶)贮液。所述蛋白酶贮液用磷酸缓冲盐溶液(PBS),pH7.4(目录号10010,Life Technologies,Gaithersburg,MD)稀释到250_g/ml并用作粪便刺激损害物。
通过将15_1等份的含有0.0%或5%合成锂皂石的凡士林涂敷于所述EpiDerm皮肤模型并用玻棒轻柔涂布所述治疗物,进行该试验。然后在培养箱中于37_C及5%CO2下温育所述EpiDerm达30分钟。然后将所述粪便刺激损害物(10_1)涂敷于凡士林处理及合成锂皂石-凡士林处理的EpiDerm样品,而将PBS载体应用于另一组用不含合成锂皂石的凡士林处理的EpiDerm样品。将所述皮肤模型放回上面提到的同一培养箱温育6小时。温育期结束时,取出下面的培养基,使用ELISA(IL-1_Quantikine Kit;目录号DLA50,R&D Systems,Minneapolis,MN)定量测定IL-1释放量。
图6显示了本试验的结果。与阴性对照相比,含有5%合成锂皂石的凡士林显示,显著降低由粪便刺激损害物引起的前炎症反应(IL-1_释放)(Student’s t-检验,p<0.05)。这些数据表明:传递非衍生的粘土如合成锂皂石以及一种载体如凡士林可以通过在传递到皮肤表面时中和在尿布环境下存在的粪便刺激物而改善皮肤健康。
实施例5标记的胰蛋白酶结合于分散在凡士林中的合成锂皂石并保留其活性
本实施例证明:凡士林中未改性粘土的作用模式是通过吸附所述酶到所述颗粒上,而不是通过直接抑制酶活性。
通过在50_C下低剪切混合,将合成锂皂石XLG(Southern Clay,Gonzales,TX)分散于凡士林(Glenpure L;Glen Corporation,St Paul,MN)。得到的混合物含有(5%)合成锂皂石。冷却所述分散物并暴露于用荧光团Texas Red(TR)标记的胰蛋白酶(SIGMA#T-0134)。使用通过succinyimidyl酯附着TR的蛋白标记试剂盒(Molecular Probes Kit#F-6162)标记胰蛋白酶。根据随所述试剂盒提供的程序进行所述程序。通过将1份标记蛋白酶与约100份溶解于10mM TRIS缓冲盐溶液(pH=7.8;150mM NaCl)的未标记酶混合,制备标记蛋白酶的工作溶液。该工作溶液含有约300ng/ml的蛋白酶并用于荧光成象。然后用TBS缓冲液冲洗含有合成锂皂石的凡士林,除去过量的胰蛋白酶。随后,将所述样品暴露于产生荧光的胰蛋白酶底物,即(BODIPY-FL)标记的酪蛋白(EnzChek Protease Assay Kit,Molecular Probes,Eugene,OR目录号E-6638)。然后如实施例7中所述洗涤该样品并成象,只是其中分别使用BODIPY-FL和Texas Red荧光团的激发波长495nm和595nm对样品成象。
产生了代表本试验结果的灰度色标形式的荧光显微照片(数据未显示)。当用495nm的光激发时,产生荧光的酪蛋白的水解产生绿色荧光。当观察用595nm的光激发的同一样品时,获得红色的荧光(数据未显示)。在这些情况下,Texas Red将发出红色荧光。
因此,数据证明当用载体凡士林传递颗粒性合成锂皂石时,胰蛋白酶结合于颗粒性合成锂皂石上(数据未显示)。数据证明胰蛋白酶在结合于所述螯合剂时保持活性(数据未显示)。总之,标记胰蛋白酶(红色荧光)与水解的产生荧光的胰蛋白酶底物(绿色荧光)在同一样品中的共定位提供强有力的证据证明:所述分散的粘土从所接触的水性溶液中螯合活性蛋白酶,并且在水性溶液中蛋白酶含量的可测量性降低不是由于对酶活性的直接抑制。因此,预期在亲脂性皮肤健康护理剂如凡士林中的未改性粘土螯合剂将吸附或螯合粪便蛋白酶并防止它们穿透皮肤。
实施例6合成锂皂石粘土和含有亲脂性皮肤健康护理剂的洗剂载体在预防胰蛋白酶穿透皮肤模型时的协同作用
本实施例不仅证明了未改性的粘土如何在含有多种具有8个碳原子以上的脂肪链的亲脂性皮肤健康护理剂的洗剂中保持对粪便蛋白酶的螯合活性,而且证明了所述亲脂性物质与所述粘土如何协同作用以增强螯合作用。
在本试验中使用皮肤模型EpiDerm_,(MatTek,目录号EPI-200-HCF序列号1343)(Ashland,MA)。评估合成锂皂石粘土(LAP RDMICRO Sample #12566-62028;Southern Clay Products,Inc.)和Vaseline_ Intensive Care Lotion(Extra Strength Formulation-Cheesborough-Ponds,Inc.)在单独使用及组合使用时预防胰蛋白酶穿透皮肤的能力。
在Vaseline Intensive Care Extra Strength Lotion中存在的成份包括(以浓度降低的顺序):水、甘油、硬脂酸、C11-13异链烷烃、乙二醇硬脂酸酯、三乙醇胺、凡士林、向日葵子油、硬脂酸甘油酯、大豆甾醇、卵磷脂、醋酸生育酚、棕榈酸视黄酯、尿素、骨胶原氨基酸、PCA钠、氧化锌、鲸蜡醇磷酸酯、硅酸铝镁、香料、硬脂酰胺AMP、玉米油、对羟基苯甲酸甲酯、DMDM乙内酰胺、氨基甲酸-碘-丙炔丁酯和EDTA二钠。这些成分中的几种包含具有8个碳单位以上的羟链,具体是硬脂酸、C11-13异链烷烃、凡士林、向日葵子油。
将5.0g合成锂皂石加入10.0ml去离子水,制备5.0%合成锂皂石悬浮液。将得到的溶液放置在摇台(rocking platform)上于室温混合半小时。混合步骤结束后,将100_1合成锂皂石悬浮液加入900_1Vaseline_ Intensive Care Lotion(VICL)。得到的制剂是含0.5%合成锂皂石的0.90X VICL。同样,对于仅含合成锂皂石的对照,将100_15.05合成锂皂石溶液加入900_1去离子水,获得0.5%合成锂皂石水溶液。
用10mM乙酸缓冲液pH5.5以1mg/ml制备猪胰的胰蛋白酶(Sigma Chemical Co.目录号T-0134)贮液并将其贮存于-20_C待用。融解贮液,用EpiDerm_生产商提供的Dulbeccos磷酸缓冲盐溶液稀释为200_g/ml。
依照生产商的指示制备EpiDerm_皮肤模型。在预温育后,将治疗物(VICL、含有5.0%合成锂皂石的VICL、或5.0%合成锂皂石)的10_1样品涂敷于所述皮肤模型的表面。使用容积吸移管加入所述治疗物。在施用后,用末端圆润玻棒将所述治疗物均匀涂布于所述皮肤模型的表面上。对于阴性治疗对照,不向所述模型中加入任何东西。涂敷治疗物1到2分钟后,涂敷10_1胰蛋白酶溶液(200_g/ml)。使用n=六个平行试验进行所有处理。所述EpiDerm皮肤模型在37_C及5%CO2中温育6小时。温育期结束时,收集下面的培养基,并迅速转移到-70_C冰箱中直至分析胰蛋白酶含量。
使用酪蛋白酶谱的定量光密度分析法进行胰蛋白酶的定量测定。简要地说,以2,000、670、200及20ng/ml的浓度制备胰蛋白酶标准。将标准品及未知物的15_1样品与等体积NOVEX 2X Tris-甘氨酸SDS样品缓冲液置于Eppendorf管中并在室温下温育10分钟。将酪蛋白酶谱凝胶(NOVEX目录号EC6405)置于盛有TRIS-甘氨酸SDS电泳缓冲液的电泳槽(NOVEX#EI9001)中。在所述凝胶的每个孔中加入标准品及未知物的25_1样品。样品于125VDC电泳75分钟。电泳后,所述凝胶按照经销商的指示进行处理、用考马斯R-250胶体蓝染色剂染色、然后脱色。得到的凝胶用配备有pdi Diversity One_图象分析软件的pdi 325oe高分辨彩色成象系统(Huntington Station,NY)成象。在得到的图象上进行光密度分析法,以使用胰蛋白酶标准品绘制标准曲线(胰蛋白酶浓度对凝胶上出现的胰蛋白酶带的光密度作图)。随后使用该标准曲线确定未知样品中存在的胰蛋白酶的浓度。使用Student’s t-检验分析平均值的差异;显著性值设为P<0.01。
图7概括了本试验的结果。用含有亲脂性皮肤健康护理剂的VICL制剂预处理皮肤模型惊人地降低胰蛋白酶穿透所述皮肤模型。合成锂皂石粘土也有效降低胰蛋白酶穿透所述皮肤模型。惊人的是,VICL与合成锂皂石的组合协同增强降低胰蛋白酶穿透所述皮肤模型。因此,图7图示意外发现:在含有亲脂性皮肤健康护理剂的洗剂和颗粒性(粘土)螯合剂之间在降低皮肤刺激物如胰蛋白酶穿透皮肤中存在协同作用。
因此,一种载体不仅仅作为惰性载体,它可以促进螯合剂的作用。当载体包含显著量的高分子量(C>8)脂肪化合物时,也如此。在所述螯合剂与所述载体之间的协同活性是未预料到的,因为现有技术认为这种类型的载体将失活刺激物螯合剂的活性。实施例7未改性的粘土涂覆于非织造材料时保持螯合活性7A皂土和合成锂皂石处理的非织造材料螯合粪便蛋白酶胰蛋白酶
本实施例证明用未改性粘土处理的底物如非织造材料如何有效螯合粪便蛋白酶胰蛋白酶。加入或不加入粘土,制备聚丙烯非织造材料(合成锂皂石,2.0mg/cm2非织造材料;或皂土,1.5mg/cm2非织造材料)。用Ahcovel表面活性剂处理所有非织造材料,赋予最终的非织造样品润湿性。用实施例1的缓冲液A制备胰蛋白酶的8_g/ml及24_g/ml溶液。将所述非织造材料盘状物(0.64cm2)与500_1缓冲液A及500_1 8_g/ml或24_g/ml的胰蛋白酶溶液置于微量离心管中。将所述离心管在室温下于摇台上混合15分钟。然后将该管在Eppendorf5415C微量离心机中以14,000rpm离心5分钟,并如实施例1所述分析上清液中的胰蛋白酶活性。
使用胰蛋白酶标准曲线将相对荧光单位转换为ng/mL胰蛋白酶,根据每孔200_1的总体积计算并根据稀释度调整以ng表示的胰蛋白酶量。如表3所示,皂土处理的非织造材料和合成锂皂石处理的非织造材料都有效从溶液中螯合胰蛋白酶。不合粘土的非织造对照材料并不具有对胰蛋白酶的任何可检测的亲和性(数据未显示)。
表3粘土处理的非织造材料对胰蛋白酶的结合
实施例7B根据荧光显微术判定,合成锂皂石处理的熔体喷射织物对胰蛋白酶的吸附
非织造材料处理 | 螯合的胰蛋白酶/添加的粘土(ng/mg) |
合成锂皂石 | 3,099 |
皂土 | 12,231 |
进行试验以证明:粘土处理的非织造材料减少可溶性胰蛋白酶是由于所述酶物理吸附于所述材料。使用层析试剂喷雾器(VWRScientific Products,目录号21428-352),将合成锂皂石(由LaporteIndustries,Widnes,UK生产的合成层状硅酸盐)涂覆熔体喷射的聚丙烯织物。在烧杯中,将1.0g合成锂皂石加入100mL水中并在室温下搅拌20分钟直至成分变得澄清,制备含有1重量比合成锂皂石的制剂。然后加入14mL的5wt%二辛基磺化琥珀酸钠(Aerosol OT)的悬浮液,得到含有0.6%表面活性剂的制剂。将所述制剂倒入层析试剂喷雾器(在5psi空气压力下操作),喷雾到熔体喷射的织物(用别针别到纸板支持物上)上直到所述织物湿润。翻转所述织物并重复喷雾。将所述织物在50℃干燥1小时。重复所述喷雾和干燥步骤两次,总共进行三次喷雾。
用荧光染料Texas Red-标记猪胰蛋白酶(Sigma Chemical Co.目录号T-0134)。使用FluoReporter蛋白标记试剂盒(Molecular Probes目录号F-6162)并按照随所述试剂盒提供的说明完成Texas Red标记。
将5微升含2.86mg/ml标记胰蛋白酶的溶液加入5.0mL浓度为294ug/ml的未标记胰蛋白酶中。得到的胰蛋白酶工作溶液含有约300ug/ml胰蛋白酶的胰蛋白酶浓度,其中1%受到标记。胰蛋白酶(标记和未标记的)稀释剂是磷酸缓冲盐溶液(0.01M磷酸缓冲液,0.0027M氯化钾,0.137M氯化钠,在25℃下pH7.4)。
将合成锂皂石处理的熔体喷射织物的圆形样品置于注射器滤器组合件(直径1.7cm)中,评估样品的胰蛋白酶结合活性。在一支塑料注射器中吸入1ml所述胰蛋白酶工作溶液。将包含处理熔体喷射织物的注射器滤器组合件固定到所述注射器的末端,使所述胰蛋白酶工作溶液的全部体积以每分钟约4ml的流速通过所述样品。用不含合成锂皂石的样品重复该过程。通过连续6次使1mL蒸馏水通过所述注射器滤器,彻底洗涤所述盘状物,总共洗涤6次。从所述滤器中取出所述织物,并在吸收性纸巾上风干。
通过荧光显微术测定胰蛋白酶对所处理的非织造材料的吸附。将从上述盘状物获得的正方形样品(约2mm2)用Resolve”MicroscopeImmersion Oil(低粘度;VWR目录号48218-061)封固于显微载玻片上。通过装备有观察epi-荧光的高压汞灯的Leica荧光显微镜DMIRB观察样品。使用595nm的激发滤色片及615nm的发射滤色片完成标记胰蛋白酶的荧光成象。在160x的放大倍数下观察所述样品。使用Hammatsu彩色chilled 3CCD照相机(C5810)获得数字图象以作文件证据。使用Adobe Photoshop图象处理软件处理获得的数据。
获得相同非织造试验材料的上述亮视野图象及荧光图象的黑白图象(数据未显示)。通过用喷雾装置将合成锂皂石涂覆于所述非织造材料,得到该材料。然后使该材料暴露于荧光标记的胰蛋白酶:将样品放置在注射器滤器组合件中,使标记的胰蛋白酶溶液通过所述样品,然后重复洗涤所述材料。对于用除了标记胰蛋白酶之外的任何物质处理的试验材料,或者当将对照材料(不含粘土)暴露于荧光标记的胰蛋白酶并如所述试验材料进行处理(数据未显示)时,没有观察到可检测的荧光。
以上为了举例说明及描述本发明而介绍了本发明的实施方案。该描述并不是本发明的全部或本发明限制于所公布的具体形式。根据上面的内容,可进行显而易见的修改或改变。选择并描述上面的实施方案,是为了说明本发明的原理以及实际用途,因此使得本领域内的一般技术人员能够利用本发明的各种实施方案并根据所设想的具体应用进行各种修改。依照公平、合法并且公正的权利范围解释所附权利要求决定,所有这样的修改和改变属于本发明范围。
Claims (36)
1.一种螯合皮肤刺激物的个人护理用品,包括一种吸收性物品并在其上布置有螯合皮肤刺激物的有效量的未改性颗粒性皮肤刺激物螯合剂以及亲脂性皮肤健康护理剂。
2.权利要求1的护理用品,其中所述吸收性物品是尿布。
3.权利要求1的护理用品,其中所述吸收性物品选自:训练短内裤、成人失禁用品、浴室卫生纸以及妇女护理用品。
4.权利要求1的护理用品,其中所述吸收性物品具有肌体面区,并且所述未改性的颗粒性螯合剂以及所述亲脂性皮肤健康护理剂布置于所述肌体面区上。
5.权利要求1的护理用品,其中所述皮肤刺激物是粪便酶。
6.权利要求5的护理用品,其中所述粪便酶是胰蛋白酶。
7.权利要求1的护理用品,其中所述未改性的颗粒剂是粘土。
8.权利要求7的护理用品,其中所述未改性的粘土是皂土。
9.权利要求7的护理用品,其中所述未改性的粘土是合成锂皂石。
10.权利要求7的护理用品,其中所述粘土选自:蒙脱石、贝得石、锂蒙脱石、滑石粉、富镁蒙脱石以及它们的组合。
11.权利要求1的护理用品,其中所述颗粒性螯合剂是硅石、二氧化钛、羟基磷灰石、矾土、离子交换树脂或它们的组合。
12.权利要求1的护理用品,其中所述亲脂性皮肤健康护理剂具有8个碳原子以上的平均烃链长度。
13.权利要求1的护理用品,其中所述亲脂性皮肤健康护理剂选自:硬脂酸、异链烷烃、凡士林以及它们的组合。
14.权利要求1的护理用品,其中所述亲脂性皮肤健康护理剂选自:脂肪酸、脂肪酸酯、脂肪族醇、甘油三酯、磷脂、矿物油、精油、甾醇、甾醇酯、润肤剂、蜡、润湿剂、表面活性剂以及它们的组合。
15.权利要求1的护理用品,其中所述未改性的颗粒性皮肤刺激物螯合剂以及所述亲脂性皮肤健康护理剂包含于洗剂载体内。
16.权利要求15的护理用品,其中基于所述载体总重量,所述洗剂载体包含约0.1到25重量百分比的未改性的颗粒性皮肤刺激物螯合剂以及约5到95重量百分比的亲脂性皮肤健康护理剂。
17.权利要求16的护理用品,其中所述洗剂载体还包含基于所述载体总重量的约0.1到25重量百分比的粘度增强剂。
18.权利要求16的护理用品,其中所述未改性的颗粒性皮肤刺激物螯合剂存在的浓度使得当施用于所述皮肤上时,它至少为50ug/cm2。
19.一种螯合皮肤刺激物的方法,包括给予所述皮肤一种个人护理用品,所述个人护理用品包括一种吸收性物品并在其上布置有螯合皮肤刺激物的有效量的未改性的颗粒性皮肤刺激物螯合剂以及亲脂性皮肤健康护理剂。
20.权利要求19的方法,其中所述吸收性物品是尿布。
21.权利要求19的方法,其中所述吸收性物品选自:训练短内裤、成人失禁用品、浴室卫生纸以及妇女护理用品。
22.权利要求19的方法,其中所述吸收性物品具有肌体面区,并且所述未改性的颗粒性螯合剂以及所述亲脂性皮肤健康护理剂布置于所述肌体面区上。
23.权利要求19的方法,其中所述皮肤刺激物是粪便酶。
24.权利要求23的方法,其中所述粪便酶是胰蛋白酶。
25.权利要求19的护理用品,其中所述未改性的颗粒剂是粘土。
26.权利要求25的方法,其中所述未改性的粘土是皂土。
27.权利要求25的方法,其中所述未改性的粘土是合成锂皂石。
28.权利要求25的方法,其中所述粘土选自:蒙脱石、贝得石、锂蒙脱石、滑石粉、富镁蒙脱石以及它们的组合。
29.权利要求19的方法,其中所述颗粒性螯合剂是硅石、二氧化钛、羟基磷灰石、矾土、离子交换树脂或它们的组合。
30.权利要求19的方法,其中所述亲脂性皮肤健康护理剂具有8个碳原子以上的平均烃链长度。
31.权利要求19的方法,其中所述亲脂性皮肤健康护理剂选自:硬脂酸、异链烷烃、凡士林以及它们的组合。
32.权利要求19的方法,其中所述亲脂性皮肤健康护理剂选自:脂肪酸、脂肪酸酯、脂肪族醇、甘油三酯、磷脂、矿物油、精油、甾醇、甾醇酯、润肤剂、蜡、润湿剂、表面活性剂以及它们的组合。
33.权利要求19的方法,其中所述未改性的颗粒性皮肤刺激物螯合剂以及所述亲脂性皮肤健康护理剂包含于洗剂载体内。
34.权利要求33的方法,其中基于所述载体总重量,所述洗剂载体包含约0.1到25重量百分比的未改性的颗粒性皮肤刺激物螯合剂以及约5到95重量百分比的亲脂性皮肤健康护理剂。
35.权利要求34的方法,其中所述洗剂载体还包含基于所述载体总重量的约0.1到25重量百分比的粘度增强剂。
36.权利要求33的方法,其中所述未改性的颗粒性皮肤刺激物螯合剂存在的浓度使得当施用于所述皮肤时,它至少为50ug/cm2。
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1999
- 1999-12-28 CO CO99081136A patent/CO5111023A1/es unknown
- 1999-12-28 CO CO99081140A patent/CO5150202A1/es unknown
- 1999-12-29 US US09/474,581 patent/US6521242B1/en not_active Expired - Fee Related
- 1999-12-29 AR ARP990106855A patent/AR023078A1/es not_active Application Discontinuation
- 1999-12-29 US US09/474,307 patent/US6521241B1/en not_active Expired - Fee Related
- 1999-12-29 US US09/473,675 patent/US6521240B1/en not_active Expired - Fee Related
- 1999-12-29 AR ARP990106852A patent/AR022163A1/es not_active Application Discontinuation
- 1999-12-29 CO CO99081364A patent/CO5150154A1/es unknown
- 1999-12-29 AR ARP990106850A patent/AR022161A1/es not_active Application Discontinuation
- 1999-12-29 US US09/474,490 patent/US6551607B1/en not_active Expired - Fee Related
- 1999-12-30 TW TW088123274A patent/TW446554B/zh not_active IP Right Cessation
- 1999-12-30 JP JP2000590698A patent/JP2004512853A/ja not_active Ceased
- 1999-12-30 KR KR1020017008348A patent/KR100706142B1/ko not_active IP Right Cessation
- 1999-12-30 BR BR9916592-9A patent/BR9916592A/pt not_active IP Right Cessation
- 1999-12-30 TW TW088123275A patent/TWI247610B/zh not_active IP Right Cessation
- 1999-12-30 EP EP99968203A patent/EP1140009B2/en not_active Expired - Lifetime
- 1999-12-30 WO PCT/US1999/031257 patent/WO2000038625A2/en active IP Right Grant
- 1999-12-30 US US09/475,825 patent/US6517848B1/en not_active Expired - Fee Related
- 1999-12-30 CN CNB998163775A patent/CN1211070C/zh not_active Expired - Fee Related
- 1999-12-30 US US09/475,535 patent/US6485733B1/en not_active Expired - Fee Related
- 1999-12-30 AU AU22217/00A patent/AU764723C/en not_active Ceased
- 1999-12-30 AU AU27173/00A patent/AU769563B2/en not_active Ceased
- 1999-12-30 KR KR1020017008346A patent/KR100661956B1/ko not_active IP Right Cessation
- 1999-12-30 BR BR9916642-9A patent/BR9916642A/pt not_active IP Right Cessation
- 1999-12-30 DE DE69927288T patent/DE69927288T3/de not_active Expired - Lifetime
- 1999-12-30 DE DE69928690T patent/DE69928690T2/de not_active Revoked
- 1999-12-30 KR KR1020017008334A patent/KR100668019B1/ko not_active IP Right Cessation
- 1999-12-30 DE DE69925637T patent/DE69925637T2/de not_active Expired - Lifetime
- 1999-12-30 EP EP99966728A patent/EP1143927B1/en not_active Expired - Lifetime
- 1999-12-30 WO PCT/US1999/031304 patent/WO2000038626A2/en not_active Application Discontinuation
- 1999-12-30 JP JP2000590579A patent/JP2002533365A/ja not_active Ceased
- 1999-12-30 CN CN99816361A patent/CN1335764A/zh active Pending
- 1999-12-30 CN CN99816378A patent/CN1344154A/zh active Pending
- 1999-12-30 EP EP99968986A patent/EP1140010B1/en not_active Revoked
- 1999-12-30 RU RU2001121485/15A patent/RU2239409C2/ru not_active IP Right Cessation
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- 1999-12-30 RU RU2001121488/15A patent/RU2244565C2/ru not_active IP Right Cessation
- 1999-12-30 AU AU24874/00A patent/AU773120C/en not_active Ceased
- 1999-12-30 BR BR9916694-1A patent/BR9916694A/pt not_active IP Right Cessation
- 1999-12-30 WO PCT/US1999/031295 patent/WO2000038747A2/en active IP Right Grant
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100536930C (zh) * | 2003-12-04 | 2009-09-09 | 宇汉-金伯利有限公司 | 包括带香料背片的吸收性物品 |
CN111315326A (zh) * | 2017-11-08 | 2020-06-19 | 科洛普拉斯特公司 | 具有中和剂基质的粘性薄片 |
CN111107817A (zh) * | 2017-11-17 | 2020-05-05 | 尤妮佳股份有限公司 | 吸收性物品 |
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