CN101500699B - 制备可崩解含水胶囊的方法 - Google Patents
制备可崩解含水胶囊的方法 Download PDFInfo
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- CN101500699B CN101500699B CN2007800293890A CN200780029389A CN101500699B CN 101500699 B CN101500699 B CN 101500699B CN 2007800293890 A CN2007800293890 A CN 2007800293890A CN 200780029389 A CN200780029389 A CN 200780029389A CN 101500699 B CN101500699 B CN 101500699B
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Abstract
本发明公开了制备可崩解含水胶囊的方法,所述胶囊具有被胶囊包封或分散在颜料相中的水相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面;其中所述水相和所述颜料相用混合设备例如外能源型设备和容器晃动型设备、流态化型设备、机械搅拌型设备和容器旋转型设备来混合。还公开了由上文方法制得的产品。还公开了提供可崩解含水胶囊的即用即制型产品。
Description
发明领域
本发明涉及一种制备可崩解含水胶囊的方法,所述胶囊包含被胶囊包封或分散在疏水性颜料中的水分。本发明还涉及由此方法制得的胶囊。
背景技术
粉底组合物可以施用到面部和身体其它部位以匀化肤色和纹理以及遮掩毛孔、瑕疵、细纹等。粉底组合物还可用于增加皮肤水分、平衡皮肤含油量以及提供保护使皮肤免受日晒、风吹和其它环境因素的不利影响。
粉底组合物通常以液体或霜膏悬浮液、乳液、凝胶、粉饼、散粉或无水的油和蜡组合物的形式获得。乳液型粉底是适宜的,因为它们可通过所掺入的水和水溶性皮肤处理剂来提供润湿效果。另一方面,可将更大量且种类更多的粉末和颜料配制成粉饼和散粉。
近来,寻求润增湿效果以及在皮肤上既具有良好覆盖又具有自然外观的理想外观的消费者习惯于两步粉底应用方案。所述两步方案通常包括施用液体或乳液型粉底,然后施用粉饼或散粉粉底。此类高要求的消费者认为此类两步方案可提供最佳的成效。然而,此类方案也是相当复杂的。需要一种能够在皮肤上提供良好的感觉和良好的外观并且还易于施用到皮肤上的粉底产品。
同时,可崩解含水胶囊是本领域已知的,例如WO 01/85138、日本专利公布2001-131528A、2000-247823A、2000-309506A、11-130614A、10-265367A、5-65212A、4-308520A、2006-509732A、2001-226230A、2001-158716A和1-125314A中。此类胶囊在施用于皮肤并且在皮肤上崩解后可提供独特的感觉或感觉变化。在施用到皮肤上后,此类胶囊提供润湿感或清新感。此类胶囊还可以基本稳定的方式向皮肤递送水溶性皮肤活性剂,例如维生素C衍生物。可崩解含水胶囊形式可用于具有此类有益效果的粉底中。
由于此类可崩解含水胶囊的物理组成,因此制备这些胶囊的方法需要小心谨慎地处理,以便能以高收率形成胶囊而不破坏物理结构。制备此类可崩解含水胶囊的方法是本领域已知的,例如WO 02/05844、WO 01/85138以及日本专利公布2006-509732A和2001-131528A中所述。
然而,上述参考文献无一公开了可有效制备向身体表面提供良好感觉的胶囊并且还可保持胶囊物理结构的方法。
基于前文所述,仍需要一种可以有效方式制备可崩解含水胶囊的方法,其中所述胶囊向身体表面提供良好感觉。虽然据信此类有益效果可用于制备是粉底的胶囊,但是还据信其可用于制备其它个人护理组合物。
没有任何现有技术能提供本发明的全部优点和有益效果。
发明概述
本发明涉及一种制备可崩解含水胶囊的方法,所述胶囊具有被胶囊包封或分散在颜料相中的水相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面;其中所述水相和所述颜料相经由混合设备混合,所述混合设备选自由下列组成的组:外能源型设备和容器晃动型设备。
本发明还涉及一种制备可崩解含水胶囊的方法,所述胶囊具有被胶囊包封或分散在颜料相中的水相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度,并且被疏油疏水性涂布材料表面涂布;其中所述水相和所述颜料相经由混合设备混合,所述混合设备选自由下列组成的组:流态化型设备、机械混合型设备和容器旋转型设备。
本发明还涉及由上述方法制得的产品。
本发明还涉及一种用于提供可崩解含水胶囊的即用即制型产品。
对于本领域技术人员来说,通过阅读本说明书的公开内容和所附的权利要求书,本发明的这些和其它特征、方面和优点将变得显而易见。
发明详述
虽然本说明书通过特别指出并清楚地要求保护本发明的权利要求书作出结论,但应该相信由下列说明可更好地理解本发明。
除非另外指明,所有的百分比、份数和比率均按本发明组合物的总重量计。所有涉及所列成分的这些重量均基于活性物质的含量,因此不包括可能包含在可商购获得材料中的载体或副产物。
可用于本发明的所有成分如活性物质和其它成分可根据其化妆和/或治疗有益效果或其假定的作用模式来分类或描述。然而应当理解,在某些情况下,可用于本发明的活性物质和其它成分可以提供一种以上的美容和/或治疗有益效果,或通过一种以上的作用模式起作用。因此,本文进行的分类是为了方便起见,而非旨在将成分限制在所列的特别指出的一个应用或几个应用中。
可崩解含水胶囊
本发明涉及制备可崩解含水胶囊,所述胶囊包含按胶囊的重量计至少约60%,优选约70%至约92%的水相,所述水相为水以及任选的水溶性溶剂。为将如此大量的水保留在结构中,本发明的胶囊包含颜料相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面,其中水被胶囊包封或分散在所述颜料相中。所述方法优选提供了在正常储存条件以及正常混合处理下稳定但是在施用时崩解的胶囊。
在一个优选的实施方案中,可通过在本发明胶囊中进一步包含胶凝剂并且在颜料相中包含第二颜料组分来提供胶囊的这种稳定性。不受理论的约束,据信所述胶凝剂可将水相保留在较刚性的结构中,同时第一和第二颜料组分覆盖水相,从而提供胶囊稳定性和完整性。在本文中,第一颜料组分和任选的第二颜料组分被统称为“颜料相”。不满足第一或第二颜料组分标准的颜料和粉末不被称为颜料相。
在一个优选的实施方案中,本发明的胶囊基本上不含表面活性剂。不受理论的约束,据信表面活性剂可通过降低水相和颜料相之间的表面张力差而不利地影响本发明胶囊的稳定性和剪切应力耐受性。本文中,表面活性剂包括具有去污性能的那些,以及仅用作乳化剂以乳化水和油相的那些。
在一个优选的实施方案中,本发明的胶囊包含小于1%的多孔颜料,所述颜料具有小于1μm的粒度。不受理论的约束,据信小尺寸的多孔颜料可从身体表面吸收皮脂,达到身体表面具有不利干燥感的程度。在本文中,多孔颜料包括二氧化硅、氧化铝、碳酸钙、纤维素以及在放大倍率下观测时具有多孔结构的其它物质。注意到根据其纯化方法、加工方法、合成方法或其它处理方法,由相同化合物制得的颜料可具有多孔或无孔结构。
当在表面上崩解时,本发明的胶囊可在身体表面例如皮肤、毛发或头皮上提供独特的有益效果。通过释放出大量的水,它可向表面提供清新感或凉爽感。在优选的实施方案中,所述胶囊首先向表面提供清新感,然后提供润湿感。优选实施方案的胶囊还通过第一和/或第二颜料组分的特征向表面提供良好的感觉。当将第一和第二颜料组分施用到表面上时,所述组分可提供此类颜料组分固有的外观有益效果。本发明的胶囊自身可提供散粉产品形式的产品。本发明的胶囊还可与其它组分混合以提供不同的产品形式。
本发明的胶囊尤其可用于个人护理组合物中,以向身体表面递送水、颜料以及其它组分。本文的个人护理组合物包括用于皮肤护理、化妆、大面积处理、香料、防汗、除臭、毛发着色、毛发处理、毛发定型等目的的那些组合物。本文的个人护理组合物可采取粉末、蜡固化固体形式、液体、洗剂、糊剂、气溶胶等产品形式。一种高度优选的产品形式实施方案是用于皮肤上的粉末,例如粉底和皮肤护理产品。对此类个人护理组合物而言,选择第一颜料组分和任选的第二颜料组分以提供合适的皮肤处理和/或化妆有益效果。在一个高度优选的实施方案中,所述胶囊包含按重量计:
(a)约70%至约92%的水相,所述水相包含按胶囊的重量计:
(1)约5%至约91.9%的水;和
(2)约0.1%至约20%的胶凝剂;
(b)约1%至约29.9%的第一颜料组分,所述第一颜料组分具有小于1μm的粒度,并且被疏油疏水性涂布材料表面涂布;和
(c)约0.1%至约29%的第二颜料组分,所述第二颜料组分具有1μm或更大的粒度,并且被疏水性涂布材料表面涂布;并且形状为球形;
其中所述第一颜料组分和所述第二颜料组分的总和为所述胶囊的至少约8%;并且其中所述胶囊包含小于1%的多孔颜料,所述颜料具有小于1μm的粒度。
水相
本发明的胶囊包含水相,所述水相包含水和下文中详述的任选的水溶性溶剂。本发明的胶囊包含按胶囊的重量计至少约60%,优选约70%至约92%的水相。所述水相可仅由水组成。优选地,水的含量为所述胶囊的约5%至约91.9%。优选使用去离子水。根据产品所需的特性,还可使用包含矿物阳离子的来自天然源的水。在一个优选的实施方案中,水可源自发酵的生物培养物或其滤液。高度优选的此类商业源是以商品名SK-II Pitera得自Kashiwayama的复膜酵母发酵滤液。
根据所期望的产品特征,并且尤其是当包含皮肤有益剂时,根据所述皮肤有益剂的活性和稳定性来选择水相的pH。在一个优选的实施方案中,将pH调节至约4至约8。为了获得所需的pH,可包含缓冲剂和其它pH调节剂。
水溶性溶剂
本发明胶囊的水相还可包含水溶性溶剂,所述水溶性溶剂选自低级烷基醇和水溶性湿润剂。根据所期望递送的皮肤感觉和/或为递送某些皮肤有益剂,选择水溶性溶剂。
可用于本发明的低级烷基醇是含有1至6个碳原子的一元醇,更优选乙醇和异丙醇。
可用于本发明的水溶性湿润剂包括多元醇,如丁二醇(1,3丁二醇)、戊二醇(1,2-戊二醇)、甘油、山梨醇、丙二醇、己二醇、乙氧基化葡萄糖、1,2-己二醇、1,2-戊二醇、己三醇、双丙甘醇、赤藓醇、海藻糖、双甘油、木糖醇、麦芽糖醇、麦芽糖、葡萄糖、果糖;和其它水溶性化合物,如尿素、软骨素硫酸钠、透明质酸钠、腺苷磷酸钠、乳酸钠、吡咯烷酮碳酸盐、葡糖胺、环糊精、以及它们的混合物。还可用于本发明的包括水溶性烷氧基化非离子聚合物如分子量高达约1000的聚乙二醇和聚丙二醇,如CTFA名为PEG-200、PEG-400、PEG-600、PEG-1000的那些以及它们的混合物。
在一个优选的实施方案中,本发明的胶囊包含约1%至约30%的水溶性湿润剂。在胶囊用作粉底的一个高度优选的实施方案中,所述胶囊包含约3%至约30%的水溶性湿润剂。
本文中可商购获得的湿润剂包括:丁二醇,以商品名1,3-丁二醇得自Celanese;戊二醇,以商品名HYDROLITE-5得自Dragoco;甘油,以商品名STAR和SUPEROL得自The Procter & Gamble Company,以商品名CRODEROL GA7000得自Croda Universal Ltd.,以商品名PRECERIN系列得自Unichema,以与该化学名称相同的商品名得自NOF;丙二醇,以商品名LEXOL PG-865/855得自Inolex,以商品名1,2-PROPYLENE GLYCOL USP得自BASF;山梨醇,以商品名LIPONIC系列得自Lipo,以商品名SORBO、ALEX、A-625和A-641得自ICI,以商品名UNISWEET 70、UNISWEET CONC得自UPI;双丙甘醇,以相同商品名得自BASF;双甘油,以商品名DIGLYCEROL得自Solvay GmbH;木糖醇,以相同商品名得自Kyowa和Eizai;麦芽糖醇,以商品名MALBIT得自Hayashibara;软骨素硫酸钠,以相同商品名得自Freeman和Bioiberica,和以商品名ATOMERGIC SODIUMCHONDROITIN SULFATE得自Atomergic Chemetals;透明质酸钠,得自Chisso Corp,也可以商品名ACTIMOIST得自Active Organics,以商品名AVIAN SODIUM HYALURONATE系列得自Intergen,以商品名HYALURONICACID Na得自Ichimaru Pharcos;腺苷磷酸钠,以相同商品名得自Asahikasei、Kyowa和Daiichi Seiyaku;乳酸钠,以相同商品名得自Merck、Wako和Showa Kako;环糊精,以商品名CAVITRON得自AmericanMaize,以商品名RHODOCAP系列得自Rhone-Poulenc,以及以商品名DEXPEARL得自Tomen;和聚乙二醇,以商品名CARBOWAX系列得自UnionCarbide。
胶凝剂
本发明组合物中的可崩解含水胶囊还可包含按胶囊的重量计约0.1%至约20%,优选约0.1%至约5%的胶凝剂。当与水相混合时,所述胶凝剂可提供粘度为约10mPas至约1,000,000mPas,优选约10mPas至约100,000mPas的含水组合物。掺入胶凝剂是有利的,因为胶凝剂可将水相保留在较刚性的结构中,从而据信可提供改善的胶囊稳定性和完整性。
可用作本文胶凝剂的聚合物是水溶性或水混溶性的聚合物。与本文胶凝剂相关的术语“水溶性或水混溶性”涉及当溶于足量水中时,无论有无高温和/或混合的辅助均可溶解成透明溶液的化合物。
可用于本文的是淀粉衍生物聚合物,例如羧甲基淀粉和甲基羟丙基淀粉。可高度用于本文的可商购获得的化合物包括以商品名COVAGEL得自LCW的羧甲基淀粉钠。
可用于本发明的是纤维素衍生物聚合物。可用于本发明的纤维素衍生物聚合物包括甲基纤维素、乙基纤维素、羟乙基纤维素、羟乙基乙基纤维素、羟丙基甲基纤维素、硝化纤维、纤维素硫酸钠、羧甲基纤维素钠、结晶纤维素、纤维素粉末、以及它们的混合物。还可用的是淀粉衍生物聚合物,例如羧甲基淀粉和甲基羟丙基淀粉。可高度用于本发明的可商购获得的化合物包括商品名为Natrosol Hydroxyethylcellulose的羟乙基纤维素,和商品名为Aqualon Cellulose Gum的羧甲基纤维素,它们均得自Aqualon。
可用于本发明的是羧酸/羧酸酯共聚物。用于本发明的可商购获得的羧酸/羧酸酯共聚物包括:CTFA名称为丙烯酸酯/C10-30丙烯酸烷基酯交联聚合物,其商品名为Pemulen TR-1、Pemulen TR-2、Carbopol 1342、Carbopol 1382和Carbopol ETD 2020,这些物质均可得自B.F.Goodrich Company。
可包含中和剂以中和本发明羧酸/羧酸酯共聚物。此类中和剂的非限制性实例包括氢氧化钠、氢氧化钾、氢氧化铵、一乙醇胺、二乙醇胺、三乙醇胺、二异丙醇胺、氨基甲基丙醇、氨基丁三醇、四羟基丙基乙二胺、以及它们的混合物。
分子量大于约1000的聚亚烷基二醇可用于本发明。可使用具有下式结构的那些:
其中R95选自由下列物质组成的组:H、甲基、以及它们的混合物。当R95为H时,这些物质为环氧乙烷的聚合物,它们也被称为聚环氧乙烷、聚氧乙烯和聚乙二醇。当R95为甲基时,这些物质为环氧丙烷的聚合物,它们也被称为聚环氧丙烷、聚氧丙烯和聚丙二醇。当R95为甲基时,也可理解为可以存在所得聚合物的各种位置异构体。在上述结构中,x3的平均值为约1500至约25,000,优选约2500至约20,000,并且更优选约3500至约15,000。其它可用的聚合物包括聚丙二醇和混合的聚乙烯-聚丙二醇、或聚氧乙烯-聚氧丙烯共聚物聚合物。可用于本文的聚乙二醇聚合物是PEG-2M,其中R95等于H,并且x3具有约2,000的平均值(PEG-2M也被称为PolyoxN-10,其得自Union Carbide,并且可被称为PEG-2,000);PEG-5M,其中R95等于H,并且x3具有约5,000的平均值(PEG-5M也被称为PolyoxN-35和PolyoxN-80,二者均得自Union Carbide,并且可被称为PEG-5,000和Polyethylene Glycol 300,000);PEG-7M,其中R95等于H,并且x3具有约7,000的平均值(PEG-7M也被称为PolyoxN-750,得自Union Carbide);PEG-9M,其中R95等于H,并且x3具有约9,000的平均值(PEG 9-M也被称为PolyoxN-3333,得自Union Carbide);和PEG-14M,其中R95等于H,并且x3具有约14,000的平均值(PEG-14M也被称为POLYOXN-3000,得自UnionCarbide)。
可用于本发明的是乙烯基聚合物,如CTFA名为卡波姆的交联丙烯酸聚合物、普鲁兰、甘露聚糖、小核菌葡聚糖、聚乙烯吡咯烷酮、聚乙烯醇、瓜耳胶、羟丙基瓜耳胶、黄原胶、金合欢胶、阿拉伯胶、黄蓍胶、半乳聚糖、长豆角胶、刺梧桐树胶、刺槐豆胶、角叉菜胶、果胶、支链淀粉、琼脂、温柏树籽(榅桲子)、淀粉(稻米、玉米、马铃薯、小麦)、海藻胶(藻类提取物)、微生物聚合物如葡聚糖、琥珀酰葡聚糖;基于淀粉的聚合物如羧甲基淀粉、甲基羟丙基淀粉;基于藻酸的聚合物如藻酸钠、藻酸丙二醇酯;丙烯酸酯聚合物如聚丙烯酸钠、聚丙烯酰胺、聚乙烯亚胺;和无机水溶性物质如膨润土、硅酸镁铝、合成锂皂石、锂蒙脱石和无水硅酸。
可用于本文的可商购获得的胶凝剂包括以商品名KELTROL系列得自Kelco的黄原胶;以商品名CARBOPOL 934、CARBOPOL 940、CARBOPOL950、CARBOPOL 980和CARBOPOL 981均得自B.F.Goodrich Company的卡波姆;以商品名INA AGAR得自Ina Food的琼脂;以商品名ACRYSOL 22得自Rohm and Hass的丙烯酸酯/硬脂基聚氧乙烯醚-20甲基丙烯酸酯共聚物;以商品名SEPIGEL 305得自Seppic的聚丙烯酰胺;以商品名LUBRAGEL NP得自ISP的聚甲基丙烯酸甘油酯;以及以商品名LUBRAGBLOIL得自ISP的聚甲基丙烯酸甘油酯、丙二醇和PVM/MA共聚物的混合物;以商品名Clearogel SC11得自Michel Mercier Products Inc.(NJ,USA)的小核菌葡聚糖;以商品名CARBOWAX PEGs、POLYOX WASRs和UCONFLUIDS均由Amerchol提供的基于环氧乙烷和/或环氧丙烷的聚合物。
可用于本发明的是两性聚合物,例如商品名为MERQUAT 280、MERQUAT295的聚季铵盐22;商品名为MERQUAT PLUS 3330、MERQUAT PLUS 3331的聚季铵盐39;以及商品名为MERQUAT 2001、MERQUAT 2001N的聚季铵盐47,其均得自Calgon Corporation。其它可用的两性聚合物包括以商品名AMPHOMER、AMPHOMER SH701、AMPHOMER 28-4910、AMPHOMER LV71和AMPHOMER LV47由National Starch & Chemical提供的辛基丙烯酰胺/丙烯酸酯/甲基丙烯酸丁基氨基乙酯共聚物。
第一颜料组分
本发明组合物中的可崩解含水胶囊包含颜料相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm,优选约5nm至约600nm,更优选约10nm至约500nm的粒度。第一颜料组分具有疏水性表面,这是指所述第一颜料组分本质上疏水或被疏水性表面涂布,优选被疏油疏水性涂布材料表面涂布。为提供优选的稳定组合物,所述第一颜料组分在所述胶囊中的含量按胶囊的重量计为约1%至约29.9%,更优选约6%至约27%。
在一个优选的实施方案中,第一颜料组分被疏油疏水性涂布材料表面涂布。不受理论的约束,在此类优选实施方案中,据信通过第一颜料组分疏油疏水性表面的表面张力,所述第一颜料组分排列于水相的相界处,同时所述第一颜料组分颗粒经由范德瓦耳斯结合力彼此结合。因此,第一颜料组分覆盖水相。还据信,由于疏油疏水性表面,与较小粒度的第一颜料组分结合的整个结构有助于本发明组合物中可崩解含水胶囊的适宜剪切应力耐受性。
可用于本文的第一颜料组分的基底颜料包括提供颜色或改变色调的那些以及提供某种皮肤感觉的那些。可用于本文的颜料包括粘土矿物粉末,例如滑石、硅酸镁、合成氟金云母、硅酸钙、硅酸铝、硅酸盐、膨润土和蒙脱土。可用于本文的着色粉末包括珍珠颜料,例如矾土、硫酸钡、磷酸二钙、氧化锆、氧化锌、羟基磷灰石、氧化铁、钛酸铁、群青蓝、普鲁士蓝、氧化铬、氢氧化铬、氧化钴、钛酸钴、氧化钛、涂层云母;有机粉末,例如聚酯、聚乙烯、聚丙烯、聚苯乙烯、甲基丙烯酸甲酯共聚物、交联聚甲基丙烯酸甲酯、12-尼龙、6-尼龙、聚苯乙烯、苯乙烯-丙烯酸共聚物、氯乙烯聚合物、乙酸乙烯酯、四氟乙烯聚合物、聚有机倍半硅氧烷树脂、固体硅氧烷弹性体、氮化硼、鱼鳞鸟嘌呤、焦油色淀染料和天然色淀染料。尤其可用作本文第一颜料组分的是二氧化钛、氧化锌、氧化铁、硫酸钡、聚苯乙烯、硅酸盐、以及它们的混合物。
当第一颜料组分本身不疏水时,表面可被具有疏水特性的材料涂布。可用于本文的疏水性涂布材料包括有机硅氧烷化合物、金属皂、油、以及既具有疏油特性又具有疏水特性的材料,例如氟化合物。本文尤其适宜的氟化合物选自由下列组成的组:全氟辛基三乙氧基硅烷、全氟烷基磷酸、它们的盐、以及它们的混合物。
高度可用于本文的可商购获得的第一颜料组分包括商品名为PF-5TiO2 CR-50的涂布有C9-15氟醇磷酸酯的二氧化钛(0.25μm);商品名为FHS 12 TiO2P-25的涂布有全氟辛基三乙氧基硅烷的二氧化钛(0.021μm);商品名为PF-7 ZnO-350的涂布有C9-15氟醇磷酸酯的氧化锌(0.020μm);商品名为PF-5 YELLOW LL-100PD的涂布有C9-15氟醇磷酸酯的黄色氧化铁(0.435μm);商品名为PF-5RED R-516PD的涂布有C9-15氟醇磷酸酯的红色氧化铁(0.44μm);以及商品名为PF-5 BLACK BL-100P、PF-5 BLACK BL-100P、PF-5 BLACK BL-100P的涂布有C9-15氟醇磷酸酯的黑色氧化铁(0.4μm),均可得自Daito Kasei;以商品名AEROSILRY200S、AEROSIL R202、AEROSIL 805、AEROSIL R812S、AEROSIL 917、AEROSIL 974、AEROSIL 972、AEROSIL RX200、AEROSIL RX300均得自Nippon Aerosil以及以商品名CAB-O-SIL TS530、CAB-O-SIL TS720均得自Cabot Corporation的疏水性二氧化硅。
第二颜料组分
在一个优选的实施方案中,颜料相还包含按胶囊的重量计约0.1%至约29%,优选约1%至约10%的第二颜料组分。本文第二颜料组分具有1μm或更大,优选约1μm至约25μm,更优选约4μm至约15μm的粒度,并且被疏水性涂布材料表面涂布。所述第二颜料组分或多或少具有球形形状。不受理论的约束,据信由于第二颜料组分的较大尺寸,所述第二颜料组分排列于所述第一颜料组分的相界处。据信,由第一和第二颜料组分提供的双重涂布结构可向本发明组合物中的可崩解含水胶囊提供适宜的剪切应力耐受性。据信,具有球形形状的颜料是有利的。
当包含时,第一颜料组分和第二颜料组分总和为胶囊的至少约8%,优选为胶囊的约8%至约26%。
当包含时,第二颜料组分还提供不易由第一颜料组分递送的独特外观效果或皮肤感觉。在一个实例中,第一颜料组分可独自提供过度的糙面精整性,并且加重而不是掩蔽皮肤的不平坦性例如毛孔。球形且半透明的第二颜料组分由于其形状和半透明性,可通过光漫射效果改善自然外观。在另一个实例中,第一颜料组分由于其小尺寸,可独自在皮肤上提供吱吱作响的感觉。柔软的球形第二颜料组分可缓解此种不利的皮肤感觉,并且提供良好的光滑感。
可用于本文的第二颜料组分的基底颜料包括聚丙烯酸酯、硅酸盐、硫酸盐、氧化铝、金属二氧化物、碳酸盐、纤维素、聚链烯烃、乙酸乙烯酯、聚苯乙烯、聚酰胺、丙烯酸醚、硅氧烷、云母以及它们的混合物和复合物。具体地讲,可用于本文的材料包括聚丙烯酸酯,例如甲基丙烯酸甲酯共聚物和尼龙、交联聚甲基丙烯酸甲酯;硅酸盐,例如硅酸钙、硅酸镁、硅酸钡、硅酸铝和二氧化硅小珠;氧化铝;金属二氧化物,例如二氧化钛和氢氧化铝;碳酸盐,例如碳酸钙、碳酸镁;纤维素;聚链烯烃,例如聚乙烯和聚丙烯;乙酸乙烯酯;聚苯乙烯;聚酰胺;丙烯酸醚,例如丙烯酸甲基醚和丙烯酸乙基醚;聚乙烯基吡咯烷酮;以及硅氧烷,例如聚有机倍半硅氧烷树脂和固体硅氧烷弹性体。高度优选的材料是聚甲基丙烯酸甲酯。
在一个实施方案中,聚有机倍半硅氧烷树脂和固体硅氧烷弹性体可用于增强掩蔽皮肤毛孔的功效。
本文的第二颜料组分被具有疏水特性的涂布材料表面涂布,其中优选疏油疏水性涂布材料。本文可用的疏水性涂布材料包括聚甲基硅氧烷、聚甲基氢硅氧烷、聚甲基苯基硅氧烷、正辛基三乙氧基硅烷、聚甲基-α-苯乙烯硅氧烷、丙烯酰硅氧烷共聚物、以及它们的混合物。优选的疏油疏水性涂布材料与上文第一颜料组分中所述涂布材料相同。
可高度用于本文中的可商购获得的第二颜料组分包括以商品名SERICITE FSE得自Sanshin Kohkoh的云母(10μm)。可高度用于本文中的可商购获得的球形第二颜料组分包括以商品名GANZ PEARL系列得自Ganz Chemical Co.,Ltd.以及以商品名SYLYSIA系列得自Fuji SylysiaChemical的甲基丙烯酸甲酯共聚物;以商品名NYLON POWDER系列得自Toray Dow Corning的尼龙-12;以商品名PF-5NYLON SP 500得自DaitoKasei的涂布有C9-15氟醇磷酸酯的尼龙-12(5μm);以商品名PF-5TOSPEARL 145得自Daito Kasei的涂布有C9-15氟醇磷酸酯的聚甲基倍半硅氧烷;以商品名KSP系列得自ShinEtsu Chemical Co.,Ltd.(Tokyo,Japan)的乙烯基聚二甲基硅氧烷/聚甲基硅氧烷倍半硅氧烷交联聚合物;以及以商品名TREFIL系列得自Toray Dow Corning的硬化聚有机硅氧烷弹性体。
制备可崩解含水胶囊的方法
本发明涉及用于以有效方式制备如上所述可崩解含水胶囊,同时保持所述胶囊物理结构的适宜方法。所述方法涉及将水相和颜料相混合,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面。为方便起见,在此部分中,将用以形成胶囊的水相和颜料相的混合称为“主混合”,而将主混合前某些组成组分的混合称为“预混合”。
如上所述,不受理论的约束,据信通过第一颜料组分表面的表面张力,所述第一颜料组分排列于所述水相的相界处,同时所述第一颜料组分颗粒经由范德瓦耳斯结合力彼此结合。本文适宜的方法是可提供足够能量以使水相微粉化或保持微粉化水相尺寸,以使第一颜料组分能够排列于相界处,并且形成稳定的胶囊,而不会提供会立即破坏所述胶囊物理结构的剪切应力的那些。优选避免的是向胶囊施加高剪切的方法例如高速搅拌,以及提供碾压或揉捏作用的机械混合方法。
一般来讲,在主混合前分别制备水相和颜料相。可将颜料相研磨成粉,以使任何可能妨碍下面胶囊制备过程的附聚物碎裂。当掺入胶凝剂时,根据组成组分的物理特性以及混合设备的组件,使胶凝剂与水相或颜料相预混。对如下所述的某些需要雾化体系以递送水相的混合设备而言,可将水相按原样喷雾,或在主混合前与胶凝剂预混。调节雾化流量,以提供所期望的胶囊尺寸。
在一个优选的实施方案中,用(例如)硅氧烷或特氟隆疏水性地涂布用于主混合的容器内壁以降低内壁的表面能,从而以有效的方式提供胶囊制备。当如下所详述将最终初级包装直接用于主混合时,最终初级包装的内壁应具有50达因/厘米或更低,优选40达因/厘米或更低的表面能。
本领域各种混合设备可用于本方法的主混合中。
本文适宜的混合设备是外能源型设备和容器晃动型设备。这些设备是在制备胶囊的容器中不具有混合桨叶等的那些。这些设备是有利的,因为在制备过程期间,它们几乎不提供剪切应力或仅提供可控量的剪切应力。这些设备是有利的,还因为制备过程在较短的时间段内完成。
外能源型混合设备包括但不限于振动型搅拌器和谐振频率型搅拌器。振动型搅拌器是通过垂直振动运动、陀螺振荡或振动频率作用而提供对流混合的那些。谐振频率型搅拌器是使用振荡器来激发材料以经由高效能量转移来混合的那些。容器晃动型混合设备是通过选择性加速和延迟而不是旋转运动来提供运动的那些。
在这些外能源型设备或容器晃动型设备中,简单地将用于制备胶囊的组成组分一起填充到混合容器中并且混合。所述混合容器不是颠倒的,并且无需经由喷雾或雾化来提供水相。因此,这些设备可用于提供在最终初级包装中直接制备胶囊以供消费者使用的方法,有时称为“包装制备”方法。因此,在一个高度优选的实施方案中,本发明的方法涉及使用外能源型设备或容器晃动型混合设备,其中在最终初级包装中提供胶囊以供消费者使用,其中所述方法包括以下步骤:
i)在最终初级包装中直接提供水相和颜料相;和
ii)将步骤i)的产物安放在用于制备所述胶囊的混合设备上。
本文中,最终初级包装是指使用者在其中接收产品的初级包装,而不是仅用于将产品递送或填充到最终初级包装中的临时容器或包装。
本文高度优选的可商购获得的振动型搅拌器包括得自CPS Color的COROB 200、以及得自Tsukishima Techno Machinery Co.,Ltd.的TSTM振动搅拌器和1型振动搅拌器。本文高度优选的可商购获得的谐振频率型搅拌器包括得自Resodyn Corporation的Resodyn声学搅拌器。不提供旋转运动的容器晃动型搅拌器是通过选择性加速和延迟陀螺摇晃运动作用来提供对流混合的那些。本文高度优选的可商购获得的晃动型搅拌器包括得自Willy A.Bachofen AG的TURBULA晃动型搅拌器(T2F)和Dyna Mix、以及得自CPS Color的COROB M300/CORB和VIBRO。
本文适宜的混合设备是流态化型设备、机械搅拌型设备和容器旋转型设备。流态化型混合设备是其中递送空气以用于混合的那些。流态化型搅拌器可有利地提供均一化的粒度。机械搅拌型搅拌器是具有某种类型旋转轴、螺条、螺旋桨、桨叶或它们组合的那些。机械搅拌型混合设备是提供低剪切混合的那些,其包括但不限于螺条式共混机、螺旋式共混机和桨式搅拌器。容器旋转型搅拌器是通过经由容器自身旋转运动产生的滑动和下落冲击、剪切挤压和旋转来提供对流混合的那些。容器旋转型混合设备包括但不限于V形搅拌器和双锥形搅拌器。
在这些流态化型设备、机械搅拌型设备或容器旋转型设备中,水相经由雾化体系来递送。根据混合设备的类型,所述雾化体系可以是喷涂器或雾化装置。
本文高度优选的可商购获得的容器旋转型搅拌器包括得自TokujuCorporation的V形共混机和双锥形搅拌器。本文高度优选的可商购获得的流态化型搅拌器包括得自Powrex的MP-01型MULTIPLEX,和得自Glatt的流化床制粒机。本文高度优选的可商购获得的机械搅拌型搅拌器包括得自Powrex Freund的Granurex、得自Dalton Corporation的螺条式共混机、得自Toyo Hi-Tech Co.Ltd.的螺条式共混机RB-8.5-05S、以及得自DYNAMIX AIR Inc.的桨式搅拌器Bella Fluidized Zone Mixer。
在另一个实施方案中,本发明的胶囊作为用于提供可崩解含水胶囊的即用即制型产品提供给最终使用者,所述可崩解含水胶囊包含:
(a)水相;
(b)颜料相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面;和
(c)最终初级包装,所述最终初级包装具有表面张力为50达因/厘米或更低的内壁;
其中在使用前所述水相和所述颜料相分开包装,并且其中所述胶囊由以下步骤制得:
i)将所述水相和所述颜料相填充到所述最终初级包装中;和
ii)将步骤i)的产物手动摇晃,直至所述水相被胶囊包封在所述颜料相中。
在此实施方案中,通过使用者手动摇晃,在使用时发生胶囊制备过程。此类即用即制型产品向使用者提供产品在使用时刚刚制成的感觉和/或制得产品的愉悦感。作为另外一种选择,此类即用即制作用可被用作有效的产品制备示范,以用于市场宣传或其它用途。
附加组分
本发明的胶囊还可包含附加组分,例如常规用于局部用产品中的组分,以用于(例如)向组合物或身体表面提供美学或功能性有益效果或功能性有益效果,例如涉及外观、气味、或触觉的感觉有益效果;治疗有益效果;或预防有益效果(应当了解,上述所需物质自身可提供此类有益效果)。此外,本发明的胶囊可包含以溶解或分散形式处于水相中或被吸引到颜料相中的各种皮肤有益剂和香料。由于一个或多个原因,递送此类包含于本发明可崩解含水胶囊中的皮肤有益剂和香料是有利的。对那些热敏性组分而言,本发明的胶囊在使用前可防止或延缓蒸发。对那些通过与个人护理组合物中残留物质接触可能会降低或损害有益效果的组分而言,本发明的胶囊可用作隔离物。其它组分在本发明胶囊施用并且崩解后可提供某种感觉。当包含时,附加组分的总量按所述胶囊的重量计保持在不超过约10%。
可包含不满足上述第一和第二颜料组分定义的粉末和颜料作为附加组分。即,不具有疏水性表面的粉末和颜料、以及粒度为1μm或更大的非球形(例如板形和针形)粉末和颜料。在所述方法中,此类附加粉末优选不与颜料相混合,但是在水相和颜料相混合后加入以制得胶囊。不受理论的约束,据信将附加粉末与初始胶囊制备工序分离可提供更加稳定的胶囊。
实施例
以下实施例进一步描述和说明了本发明保护范围内的实施方案。所给的这些实施例仅仅是说明性的,不可理解为是对本发明的限制,因为在不背离本发明精神和范围的条件下可以进行许多更改。除非下文另外说明,此处适用的成分均以化学名或CTFA名来识别。
以下是本发明胶囊组合物以及制备此类胶囊的适宜方法。
表1:以重量百分比计的组合物实施例1至4
实施例1 | 实施例2 | 实施例3 | 实施例4 | ||
1 | 被C9-15氟醇磷酸酯涂布的二氧化钛(0.25μm)*1 | 10 | 3 | ||
2 | 被全氟辛基三乙氧基硅烷涂布的二氧化钛(0.021μm)*2 | 10 | |||
3 | 被C9-15氟醇磷酸酯涂布的氧化锌(0.020μm)*3 | 2 | |||
4 | 被C9-15氟醇磷酸酯涂布的黄色氧化铁(0.435μm)*4 | 1.386 | 1.0 | ||
5 | 被C9-15氟醇磷酸酯涂布的红色氧化铁(0.44μm)*5 | 0.189 | 0.1 | ||
6 | 被C9-15氟醇磷酸酯涂布的黑色氧化铁(0.4μm)*6 | 0.243 | 0.1 | ||
7 | 被六亚甲基二硅氮烷涂布的无水硅酸(7nm)*7 | 5 | |||
8 | 被三甲基甲硅烷涂布的无水硅酸(14nm)*8 | 10 | |||
9 | 羧甲基淀粉钠*9 | 1.5 | 1.5 | 1.5 | |
10 | 黄原胶*10 | 0.01 | 0.01 | ||
11 | 琼脂*11 | 0.5 | |||
12 | 被C9-15氟醇磷酸酯涂布的尼龙-12(5μm)*12 | 6.682 | 7.7 | ||
13 | 被C9-15氟醇磷酸酯涂布的聚甲基倍半硅氧烷(4.5μm)*13 | 1 | |||
14 | 被聚甲基硅氧烷涂布的滑石(10μm)*14 | 5.0 | |||
15 | 被聚甲基硅氧烷涂布的二氧化钛涂布的云母(40μm)*15 | 12 | |||
16 | 云母(10μm)*16 | 1.85 | |||
17 | 二氧化钛(0.040μm)*17 | 1 | |||
18 | 聚氧乙烯甲基聚硅氧烷共聚物*18 | 0.5 | |||
19 | D-δ-生育酚*19 | 0.1 | |||
20 | 甲氧基肉桂酸乙基己酯*20 | 0.1 | |||
21 | 丁二醇*21 | 15 | 10 | ||
22 | 双丙甘醇 | 10 | |||
23 | 甘油 | 5 | 1 | ||
24 | 乙醇 | 2 | |||
25 | 葡糖基橘皮苷*22 | 0.5 | |||
26 | 抗坏血酸*23 | 1 | |||
27 | 烟酰胺*24 | 2 | |||
28 | 桑树根提取物*25 | 1 |
29 | 泛醇*26 | 1 | |||
30 | 复膜酵母发酵滤液*27 | 10 | 5 | ||
31 | 水 | 64.7 | 56.9 | 70.59 | 58.89 |
32 | EDTA-2Na | 0.1 | 0.1 | ||
33 | 防腐剂 | 0.3 | 0.3 | 0.3 | 0.3 |
34 | 香料 | 0.05 | |||
总计 | 100 | 100 | 100 | 100 |
组分定义
*1被C9-15氟醇磷酸酯涂布的二氧化钛(0.25μm):PF-5TiO2CR-50,得自Daito Kasei。
*2被全氟辛基三乙氧基硅烷涂布的二氧化钛(0.021μm):FHS12TiO2 P-25,得自Daito Kasei。
*3被C9-15氟醇磷酸酯涂布的氧化锌(0.020μm):PF-7ZnO-350,得自Daito Kasei。
*4被C9-15氟醇磷酸酯涂布的黄色氧化铁(0.435μm):PF-5YELLOW LL-100PD,得自Daito Kasei。
*5被C9-15氟醇磷酸酯涂布的红色氧化铁(0.44μm):PF-5REDR-516PD,得自Daito Kasei。
*6被C9-15氟醇磷酸酯涂布的黑色氧化铁(0.4μm):PF-5BLACKBL-100P,得自Daito Kasei。
*7被六亚甲基硅氮烷涂布的无水硅酸(7nm):AEROSIL RX300,得自NIPPON AEROSIL。
*8被三甲基甲硅烷涂布的无水硅酸(14nm):AEROSIL R202,得自NIPPON AEROSIL。
*9羧甲基淀粉钠:COVAGEL,得自LCW。
*10黄原胶:Keltrol T,得自Kelco。
*11琼脂:INA AGAR,得自Ina Food。
*12被C9-15氟醇磷酸酯涂布的尼龙-12(5μm):PF-5NYLON SP-500,得自Daito Kasei。
*13被C9-15氟醇磷酸酯涂布的聚甲基倍半硅氧烷(4.5μm):PF-5TOSPEARL 145,得自Daito Kasei。
*14被聚甲基硅氧烷涂布的滑石(10μm):SI TALC,得自MiyoshiKasei。
*15被聚甲基硅氧烷涂布的二氧化钛涂布的云母(40μm):SIFLAMENCO SUPER PEARL,得自Miyoshi Kasei
*16云母(10μm):SERICITE FSE,得自Sanshin Kohkoh。
*17二氧化钛(0.040m):Titanium Dioxide TTO-55,得自Ishihara。
*18聚氧乙烯甲基聚硅氧烷共聚物:KF-6018,得自ShinEtsuChemical。
*19D-δ-生育酚:D-DELTA-TOCOPHEROL,得自EISAI CO.,LTD。
*20甲氧基肉桂酸乙基己酯:PARSOL MCX,得自ROCHE VITAMINSJAPAN K.K.。
*21丁二醇:1,3-Butylene Glycol,得自Celanese。
*22葡糖基橙皮苷:α-Ghesperidin PS-CC,得自Hayashibara。
*23抗坏血酸:Ascorbic Acid,得自ROCHE VITAMINS JAPANK.K.。
*24烟酰胺:Niacinamide USP,得自DSM。
*25桑树根提取物:Mulberry BG,得自MaruzenPharmaceuticals。
*26泛醇:D-Panthenol USP,得自DSM。
*27复膜酵母发酵滤液:SK-II Pitera,得自Kashiwayama。
制备方法-预混
1.颜料相制备
由组分(1)至(8)和(12)至(13)制备颜料相。使用高速流态化型搅拌器或螺条式共混机来混合颜料相组分,并且还使用粉碎机来粉碎。获得解附聚的颜料相精细粉末混合物。
2.水相制备
组分(21)至(33)为水相组分以及其它亲水性组分。为说明下文方法实施方案,将组分(21)至(33)统称为水相。在容器中使用搅拌器来混合水相组分。
3.其它
由组分(9)至(11)来制备胶凝剂。组分(14)至(20)和(34)为附加粉末、其它疏水性组分以及香料。可以与颜料相相同的方式来预混附加粉末。为说明下文方法实施方案,将组分(14)至(20)和(34)统称为附加粉末。
制备方法-主混合
方法实施例1:振动型搅拌器(磁力振动/振动马达)
如下通过得自TSUKISHIMA TECHNO-MACHINERY Co.,Ltd.的1型振动型搅拌器,可制得实施例1至4中的任何组合物胶囊:
调节每种组分的装载量以获得10kg批料量。在振动振幅(5至50mm)和摆动频率(200至1000rpm)下,将颜料相转移至振动型搅拌器容器(VF-1M,28L)中。在相同混合条件下,将水相和胶凝剂加入到容器中,直至形成胶囊。在相同混合条件下,加入附加粉末(如果有的话)。
方法实施例2:声学共振频率搅拌器
如下通过得自Resodyn Corporation的LabRAM,可制得实施例1至4中的任何组合物胶囊:
调节每种组分的装载量,以获得300g批料量。将颜料相、水相和胶凝剂转移至混合容器(500mL)中,并且在5至80G的加速度下搅拌,直至形成胶囊。在相同混合条件下,加入附加粉末(如果有的话)。
方法实施例3:晃动型搅拌器
调节每种组分的装载量以获得420g批料量。如下通过得自Willy A.Bachofen AG的TURBULA-晃动器,可制得实施例1至4中的任何组合物胶囊:
将颜料相、水相和胶凝剂转移至混合容器(1L)中,并且在49至101rpm的速度下搅拌,直至形成胶囊。在相同混合条件下,加入附加粉末(如果有的话)。
方法实施例4:流态化型搅拌器
如下通过得自POWREX的MP-01型MULTIPLEX,可制得实施例1至4中的任何组合物胶囊:
调节每种组分的装载量以获得750g批料量。将颜料相和胶凝剂转移至流态化体系中。将水相加入到喷雾器中,并且将喷雾器安装在混合设备上。将水相加入到喷雾器中,并且将喷雾器安装在混合设备上。以10至80NL/分钟的速率,以20至70g水相/分钟的量来雾化水相,同时在流化床中提供5至20m3/分钟的空气流量,直至形成胶囊。在相同混合条件下,加入附加粉末(如果有的话)。
方法实施例5:机械搅拌器
如下通过得自Toyo Hi-Tech Co.Ltd.的螺条式共混机RB-8.5-05S,可制得实施例1至4中的任何组合物胶囊:
调节每种组分的装载量,以获得1500g批料量。将颜料相和胶凝剂转移至螺条式共混搅拌器中。将水相加入到喷雾器中,并且将喷雾器安装在混合设备上。以10至80NL/分钟的速率,以20至70g水相/分钟的量将水相雾化到螺条式共混机中,并且搅拌直至形成胶囊。在相同混合条件下,加入附加粉末(如果有的话)。
方法实施例6:机械搅拌器
如下通过得自DYNAMIX AIR Inc的桨式搅拌器Bella Fluidized ZoneMixer,可制得实施例1至4中的任何组合物胶囊:
调节每种组分的装载量以获得3600g批料量。将颜料相和胶凝剂转移至桨式搅拌器中。将水相加入到喷雾器中,并且将喷雾器安装在混合设备上。以10至80NL/分钟的速率,以100至500g水相/分钟的量将水相雾化到桨式搅拌器中,并且搅拌直至形成胶囊。在相同混合条件下,加入附加粉末(如果有的话)。
方法实施例7:声学共振频率搅拌器
如下经由包装制备方法,通过使用得自Resodyn Corporation的LabRAM,可制得实施例1中的胶囊:
调节每种组分的装载量以获得10g批料量。将颜料相、水相和胶凝剂转移至安装在混合设备上的由聚对苯二甲酸乙二醇酯(30g,内壁表面张力小于40达因/厘米)制成的最终初级包装中,并且在5至80G的加速度下搅拌,直至形成胶囊。
方法实施例8:晃动型搅拌器
如下经由包装制备方法,通过使用得自Willy A.Bachofen AG的TURBULA-晃动器,可制得实施例1中的胶囊:
调节每种组分的装载量,以获得10g批料量。将颜料相、水相和胶凝剂转移至安装在混合设备上的由聚对苯二甲酸乙二醇酯(30g,内壁表面张力小于40达因/厘米)制成的最终初级包装中,并且在49至101rpm的速度下搅拌,直至形成胶囊。
使用方法
由上述方法实施例1至6中任何一种制得的组合物实施例1和4的胶囊在正常储存条件以及正常混合过程中是稳定的,然而在施用时崩解。由方法实施例7至8中任何一种制得的组合物实施例1的胶囊也可在正常储存条件以及正常混合过程中保持稳定,然而在施用时崩解。
由上述方法实施例1至8中任何一种制得的实施例1产品以及由上述方法实施例1至6中任何一种制得的实施例4产品可用作粉底产品。由上述方法实施例1至6中任何一种制得的实施例2产品可用作美白粉末。由上述方法实施例1至6中任何一种制得的实施例3产品可被用作重点化妆产品。当被施用到皮肤上时,这些产品可在皮肤上提供良好的贴合性、良好的润湿感和凉爽感、均匀的覆盖以及皮肤上持久的保持性。
本文所公开的量纲和值不旨在被理解为严格地限于所述的精确值。相反,除非另外指明,每个这样的量纲是指所引用的数值和围绕该数值的功能上等同的范围。例如,公开为“40mm”的量纲是指“约40mm”。
在发明详述中引用的所有文件都在相关部分中以引用方式并入本文中。对于任何文件的引用不应当解释为承认其是有关本发明的现有技术。当本发明中术语的任何含义或定义与以引用方式并入的文件中术语的任何含义或定义矛盾时,应当服从在本发明中赋予该术语的含义或定义。
虽然已经举例说明和描述了本发明的具体实施方案,但是对于本领域技术人员来说显而易见的是,在不背离本发明实质和范围的情况下可以做出多个其他改变和变型。因此,所附的权利要求书意欲包括在本发明范围内的所有这样的改变和变型。
Claims (8)
1.一种制备可崩解含水胶囊的方法,所述胶囊具有被胶囊包封或分散在颜料相中的水相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面;
其中所述水相和所述颜料相经由混合设备混合,所述混合设备选自由下列组成的组:外能源型设备和容器晃动型设备;和
其中所述方法提供足够能量以使水相微粉化或保持微粉化水相尺寸,以使第一颜料组分排列于相界处,并且形成稳定的胶囊,而不会提供会立即破坏所述胶囊物理结构的剪切应力。
2.如权利要求1所述的方法,其中所述混合设备为外能源型设备,所述外能源型设备选自由下列组成的组:振动型搅拌器和谐振频率型搅拌器。
3.如权利要求1所述的方法,其中所述混合设备为通过选择性加速和延迟来提供运动的容器晃动型设备。
4.如权利要求1所述的方法,其中所述胶囊还包含胶凝剂,所述胶凝剂在与所述颜料相混合之前与所述水相预混。
5.如权利要求1所述的方法,其中所述胶囊还包含胶凝剂,所述胶凝剂在与所述水相混合之前与所述颜料相预混。
6.如权利要求1所述的方法,其中在最终初级包装中提供所述胶囊以供消费者使用,其中所述方法包括以下步骤:
i)在所述最终初级包装中直接提供所述水相和所述颜料相;和
ii)将步骤i)的产物安放在用于制备所述胶囊的混合设备上。
7.一种由权利要求1至6中任一项所述的方法制得的可崩解含水胶囊。
8.一种提供可崩解含水胶囊的即用即制型粉底产品,所述胶囊包含:
(a)水相;
(b)颜料相,所述颜料相包含至少第一颜料组分,所述第一颜料组分具有小于1μm的粒度和疏水性表面;和
(c)最终初级包装,所述最终初级包装具有内壁,所述内壁具有50达因/厘米或更低的表面张力;
其中在使用前所述水相和所述颜料相分开包装,并且其中所述胶囊由以下步骤制得:
i)将所述水相和所述颜料相填充到所述最终初级包装中,其中所述第一颜料组分在所述胶囊中的含量按胶囊的重量计为1-29.9%;和
ii)将步骤i)的最终初级包装手动摇晃,直至所述水相被胶囊包封在所述颜料相中,
其中所述摇晃提供足够能量以使水相微粉化或保持微粉化水相尺寸,以使第一颜料组分排列于相界处,并且形成稳定的胶囊,而不会提供会立即破坏所述胶囊物理结构的剪切应力。
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- 2007-08-07 EP EP07805344A patent/EP2051801A2/en not_active Withdrawn
- 2007-08-07 JP JP2009523425A patent/JP2010500338A/ja active Pending
- 2007-08-07 WO PCT/IB2007/053123 patent/WO2008018028A2/en active Application Filing
- 2007-08-08 AU AU2007282910A patent/AU2007282910B2/en not_active Ceased
- 2007-08-08 CN CNA200780029214XA patent/CN101500528A/zh active Pending
- 2007-08-08 EP EP07826015A patent/EP2069064A2/en not_active Withdrawn
- 2007-08-08 CA CA002658990A patent/CA2658990A1/en not_active Abandoned
- 2007-08-08 KR KR1020097002322A patent/KR20090031932A/ko not_active Application Discontinuation
- 2007-08-08 CN CN2007800293890A patent/CN101500699B/zh not_active Expired - Fee Related
- 2007-08-08 JP JP2009523434A patent/JP2010500339A/ja active Pending
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JP2010500339A (ja) | 2010-01-07 |
WO2008018028A3 (en) | 2008-05-02 |
AU2007282910B2 (en) | 2011-09-01 |
WO2008018028A2 (en) | 2008-02-14 |
US20080038302A1 (en) | 2008-02-14 |
JP2010500338A (ja) | 2010-01-07 |
WO2008018041A3 (en) | 2008-06-19 |
CN101500528A (zh) | 2009-08-05 |
CA2658990A1 (en) | 2008-02-14 |
EP2051801A2 (en) | 2009-04-29 |
CN101500699A (zh) | 2009-08-05 |
EP2069064A2 (en) | 2009-06-17 |
AU2007282910A1 (en) | 2008-02-14 |
US20080038557A1 (en) | 2008-02-14 |
WO2008018041A2 (en) | 2008-02-14 |
KR20090031932A (ko) | 2009-03-30 |
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