CN102186450A - 浓缩的洗发剂 - Google Patents

浓缩的洗发剂 Download PDF

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CN102186450A
CN102186450A CN200980141100.3A CN200980141100A CN102186450A CN 102186450 A CN102186450 A CN 102186450A CN 200980141100 A CN200980141100 A CN 200980141100A CN 102186450 A CN102186450 A CN 102186450A
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T·J·马登
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
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    • A61K8/92Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
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Abstract

本发明涉及浓缩的洗发剂组合物,包含25至38重量%的C10-C14醚硫酸盐作为清洁表面活性剂、0.5至5%的盐,其中,该组合物的零剪切粘度为2至2000Pa·s,且该组合物包含90体积%或更多的处于向列盘状相的组成。

Description

浓缩的洗发剂
技术领域
本发明涉及一种浓缩的洗发剂。
背景技术
WO 94/16680公开了浓缩的个人洗涤组合物。
US 2005/043194公开了单相稀释增稠组合物。
US 2003/134760公开了澄清的洗发剂组合物。
EP-A-1 250 938公开了水溶性家庭护理浓缩组合物。
US 2003/215479公开了一种用于制造头发美容或皮肤美容产品的方法。
WO 01/25378公开了结构化的表面活性剂系统。
尽管已有这些现有技术,但仍然需要改进的浓缩洗发剂组合物。
发明内容
因此,本发明提供了根据权利要求1的浓缩的洗发剂组合物。
本发明的组合物的主要部分为相图中的向列盘状相。向列盘状相是本领域中的标准术语,并表示很容易在核磁共振成像中识别的相,凭借核磁共振成像非轴向排列的盘可以很容易地区分。
典型洗发剂组合物的相行为是使得常规的非浓缩洗发剂组合物处于各向同性的相。通常情况下,在较高的表面活性剂浓度下将存在六角相,然而,这提供了过于粘稠而不适于通常的消费者使用的组合物。在更高的表面活性剂浓度下将存在层状相,但是这不能够如各向同性相一样好地递送活性成分。所以,通常制剂师在配制标准的非浓缩洗发剂时在相图方面几乎没有困难。这些组合物的流变性通常是用盐进行控制,以增加表面活性剂胶束的大小。换句话说,盐用来增稠组合物。对于处于六角相的组合物,盐进一步沿着相图将它们推进为层状相。然而,层状相组合物不适合于洗发剂组合物,因为它们在沉着诸如聚硅氧烷的物质方面性能较差。因此,令人惊讶的是,获得其性能在具有适当的流变性并沉着诸如聚硅氧烷的物质方面如同各向同性组合物而不处于六角相或层状相的组合物是可能的。
我们意外地发现,向一般处于六角相的组合物添加盐实际上没有变得更稠,而是相反变得更稀。由此产生的组合物处于向列盘状相。
换言之,向浓缩的组合物添加盐提供了向列盘状相的窗口(window),其提供了与处于各向同性相的组合物类似的流变性。
优选地,零剪切粘度为10至200Pa.s.
优选地,组合物包含95体积%或更多,优选99%或更多的向列盘状相的组成。
组合物可以包含任何单一的通常用于洗发剂组合物的表面活性剂或其混合物。优选地,表面活性剂选自阴离子、非离子和两性离子表面活性剂及其混合物。优选地,清洁表面活性剂为阴离子表面活性剂。
浓缩洗发剂中存在的表面活性剂的水平与浓缩的目的有关,且通常比在正常的非浓缩洗发剂中的表面活性剂水平高两到三倍。
优选地,清洁表面活性剂以30至37重量%的量存在。
在优选的实施方式中,清洁表面活性剂包含C10-C14烷基醚硫酸盐,更优选十二烷基醚硫酸钠。更优选地,十二烷基醚硫酸钠包含1至3的平均EO值,最优选为1至1.4。
浓缩的洗发剂还可以包含辅助表面活性剂。优选的辅助表面活性剂是两性表面活性剂。更优选地,辅助表面活性剂是椰油酰胺基丙基甜菜碱(cocoamidopropyl betaine)或椰油酰胺MEA(cocamide MEA)。
优选地,辅助表面活性剂以占组合物的0.5至5重量%的量存在,更优选1至3重量%,最优选占组合物的1.5至2.5重量%。
优选地,组合物包含重量比为10∶1至17∶1,更优选12∶1至16∶1,最优选13∶1至15∶1的阴离子表面活性剂和辅助表面活性剂。
优选地,盐是钠盐,更优选地选自氯化钠和硫酸钠。
当盐是氯化钠时,优选它以占组合物的1至3重量%的量存在。
当盐是硫酸钠时,优选它以占组合物的2至4重量%的量存在。
优选地,浓缩的洗发剂包含油。受盐影响的相结构变化使得浓缩的洗发剂组合物能够携带不可能在盘状向列相外的物质。合适的物质包括油。
优选地,油选自矿物油、植物油、动物油或其混合物,更优选为矿物油。
优选地,浓缩的洗发剂可包含选自椰子油和棕榈仁油的油。
本发明的洗发剂可以包含洗发剂组合物中常见的任何物质,诸如增稠剂、珠光剂(pearlescer)、聚硅氧烷、脂肪物质、着色剂、香料等。
具体实施方式
实施例1
以下是按标准方法制成的制剂。
Figure BPA00001348497600031
实施例2
氯化钠
 %SLES  14  21  24.5  28  31.5  35  38.5  42  49
 %CMEA  1  1.5  1.75  2  2.25  2.5  2.75  3  3.5
 总计  15  22.5  26.25  30  33.25  37.5  41.25  45  52.5
 D  L1  L1  L1  ND  ND  ND  La  La  La
 C  L1  L1  L1  L1  ND  ND  ND  ND  La
 B  L1  L1  L1  L1  ND  ND  ND  H1  La
 A  L1  L1  L1  L1/H1  H1  H1  H1  H1  H1
A  0%NaCl
B  0.5%NaCl
C  1%NaCl
D  2%NaCl
L1  各向同性相
ND  向列盘状相
La  层状相
H1  六角相
硫酸钠
  %SLES   14   21   24.5   28   31.5   35   38.5   42   49
  %CMEA   1   1.5   1.75   2   2.25   2.5   2.75   3   3.5
  总计   15   22.5   26.25   30   33.25   37.5   41.25   45   52.5
  E   L1   L1   L1   L1   L1   ND   ND   La   La
  D   L1   L1   L1   L1   ND   ND   ND   H1/La   La
  C   L1   L1   L1   ND   H1/ND   H1   H1/ND   H1/ND   La
  B   L1   L1   ND   H1/ND   H1/ND   H1   H1/ND   H1   H1/La
  A   L1   L1   L1   L1/H1   H1   H1   H1   H1   H1
A  0%硫酸钠
B  1%硫酸钠
C  2%硫酸钠
D  3%硫酸钠
E  4%硫酸钠
矿物油
  %SLES   14   21   24.5   28   31.5   35   38.5   42   49
  %CMEA   1   1.5   1.75   2   2.25   2.5   2.75   3   3.5
  总计   15   22.5   26.25   30   33.25   37.5   41.25   45   52.5
  E   L1   L1   L1/H1   H1   H1   H1   H1
  D   L1   L1   多种   H1   H1   H1   H1
  C   L1   L1   L1   多种   L1/H1   H1   H1   H1   H1
  B   L1   L1   L1   L1/H1   H1   H1   H1   H1   H1
  A   L1   L1   L1   L1/H1   H1   H1   H1   H1   H1
A  0%矿物油
B  1%矿物油
C  2%矿物油
D  3%矿物油
E  4%矿物油
组合
  %SLES   14   21   24.5   28   31.5   35   38.5   42   49
  %CMEA   1   1.5   1.75   2   2.25   2.5   2.75   3   3.5
  总计   15   22.5   26.25   30   33.25   37.5   41.25   45   52.5
  B   L1   L1   L1   L1/ND   H1/ND   ND   ND   H1/La   La
  A   L1   L1   L1   L1/H1   H1   H1   H1   H1   H1
A  0%NaCl和1%矿物油
B  1%NaCl和1%矿物油
实施例3
制备小样品、确定多种相(如果存在)的比例和鉴定相结构的方法
以5克为一批次制备制剂,向20毫升的揿盖玻璃GC样品瓶中添加所有的成分,用丁基橡胶塞塞住和铝质压塞封闭。然后,将它们在85℃的烤箱中加热3-4小时或过夜。使样品冷却,启封,混合,再封好并再次加热至85℃持续3-4小时或过夜。重复该循环,直至样品均匀或再次加热时没有变化。一旦冷却,对样品瓶中的样品进行视觉评估,以确定样本是否已分离成表明存在多种相的两个或多个层。可以通过测量各个相在样品瓶中占据的垂直距离来获得存在的各个相的量的比例。通过具有10倍物镜的Olympus BX51偏振光学显微镜检验冷却后的样品,使用观测的构造来确定所产生的表面活性剂相(S.Hassan,W.Rowe&GJT.Tiddy,Handbook of Applied Surfactant and Colloid Chemistry第1卷,第465页)。如果存在多相,从各相提取材料的样品并单独地检验。
测量零剪切粘度的方法
在25℃下用TA Instruments ARG2控制应力流变仪(Control Stress Rheometer)测量洗发剂的流变性。零剪切粘度值被作为在洗发剂的屈服应力下测量的剪切粘度。从应变频率扫描(strain frequency sweep)确定屈服应力。

Claims (15)

1.浓缩的洗发剂组合物,包含25至38重量%的C10-C14醚硫酸盐作为清洁表面活性剂、0.5至5%的盐,其中,所述组合物的零剪切粘度为2至2000Pa.s,且所述组合物包含90体积%或更多的向列盘状相的组成。
2.根据权利要求1所述的组合物,其中,所述零剪切粘度是10至200Pa.s。
3.根据权利要求1或2所述的组合物,包含95体积%或更多的向列盘状相的组成。
4.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述盐是钠盐。
5.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述盐选自氯化钠和硫酸钠。
6.根据权利要求6的洗发剂组合物,其中,所述盐是氯化钠,并且以占组合物的1至3重量%的量存在。
7.根据权利要求6的洗发剂组合物,其中,所述盐是硫酸钠,并且以占组合物的2至4重量%的量存在。
8.根据上述权利要求的任一项所述的洗发剂组合物,还包含油。
9.根据权利要求9的洗发剂组合物,其中,所述油选自矿物油、植物油、动物油或其混合物。
10.根据权利要求9的洗发剂组合物,其中,所述油选自椰子油和棕榈仁油。
11.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述清洁表面活性剂是阴离子表面活性剂。
12.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述清洁表面活性剂以30至37重量%的量存在。
13.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述组合物包含0.5至5%重量的辅助表面活性剂。
14.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述清洁表面活性剂包括十二烷基醚硫酸钠。
15.根据上述权利要求的任一项所述的洗发剂组合物,其中,所述组合物包含椰油酰胺基丙基甜菜碱或椰油酰胺MEA。
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EA022313B1 (ru) 2015-12-30
AR074283A1 (es) 2011-01-05
CN102186450B (zh) 2014-10-22
CA2738780A1 (en) 2010-05-14
TWI446929B (zh) 2014-08-01
US20110212879A1 (en) 2011-09-01
BRPI0914063A2 (pt) 2015-11-03
JP2012508207A (ja) 2012-04-05
TW201021846A (en) 2010-06-16
EP2341887A1 (en) 2011-07-13
AU2009313006A1 (en) 2010-05-14
WO2010052073A1 (en) 2010-05-14
KR20110086555A (ko) 2011-07-28
EA201170653A1 (ru) 2011-10-31
AU2009313006B2 (en) 2014-02-20

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