COMPOSITIONS TRANSPARENTES DE NETTOYAGE COMPRENANT UN AGENT EPAISSISSANTDE DIOLEATE DE METHYLGLUCOSE PEG-120, DU CHLORATE DE SODIUM, UN AGENT DESURFACE CATIONIQUE ET UN AGENT DE SURFACE NON IONIQUE

CLEAR CLEANSING COMPOSITIONS COMPRISING AN PEG-120 METHYL GLUCOSE DIOLEATE THICKENER, SODIUM CHLORIDE, A CATIONIC SURFACTANT, AND A NON-IONIC SURFACTANT

Abrégé anglais

An aqueous cleansing composition comprising a cationic surfactant, a nonionic
surfactant, and a thickener comprising an alkoxylated methyl glucose ether,
wherein a weight
ratio of cationic surfactant to nonionic surfactant is greater than 0.9:1. The
combination of the
cationionic:nonionic surfactant ratio with the alkoxylated methyl glucose
ether thickener
provides the composition with cold weather stability. Cold weather stability
is observed when
the composition remains transparent after cold storage.

Revendications

CLAIM S
WHAT IS CLAIMED IS:
1. An aqueous cleansing composition comprising a cationic surfactant, a
nonionic
surfactant, and a thickener comprising an alkoxylated methyl glucose ether,
wherein a
weight ratio of cationic surfactant to nonionic surfactant is greater than
0.9:1
2. The cleansing composition of clam 1 further comprising a cationic
antibacterial agent
selected from the group consisting of benzalkonium chloride, henzethonium
chloride, and
mixtures thereof
3. The cleansing composition of claim 2, wherein the cationic
antibacterial. agent is
benzalkonium chloride.
4. The cleansing composition of any preceding claim, wherein the weight
ratio of cationic
surfactant to nonionic surfactant is at least 1.Ø
5. The cleansing composition of any preceding claim, wherein the thickener
is an
alkoxylated methyl glucose ether esterified with fatty acid.
6. The cleansing composition of any preceding claim, wherein the thickener
is at least one
of an alkoxylated methyl glucose dioleate, an alkoxylated methyl glucose
trioleate, and
alkoxylated methyl glucose distearate.
7. The cleansing composition of any preceding claim, wherein the thickener
is ethoxylated
8. The cleansing composition of any preceding claim, wherein the thickener
has a degree of
ethoxylation of 100 to 200.
9. The cleaning composition of any preceding claim, wherein the thickener
is selected from.
the group consisting of PEG-120 methyl glucose dioleate, PEG-150 distearate,
and
mixtures thereof.
10. The cleansing composition of arty preceding claim, wherein the
thickener is PEG-120
methyl glucose dioleate.
11. The cleansing composition of any preceding claim, wherein the cationic
surfactant
comprises a quaternary ammonium alkyl salt
6

12. The cleansing composition of any preceding claim, wherein the cationic
surfactant
comprises cetyl trimethyl ammonium chloride.
13 The cleansing composition of any preceding claim, wherein the nonionic
surfactant
comprises at least one surfactant chosen from an amine oxide and fatty acid
amide.
1 4. The cleansing composition of any preceding claim, wherein the nonionic
surfactant
comprises lauryl/myristyl andropropyl dimethylainine
oxide and
cocomonoethanolamide.
15. The cleansing composition of any preceding claim, wherein the thickener
is present in an
amount of 0 1 to 2 weight % of the composition, optionally 0.1 to 1 weight %.
16, The cleansing composition of any preceding claim, wherein the cationic
surfactant is
present in an amount of 0.1 to 20 weight % of the composition, optionally 0.3
to 5 weight
%.
17. The cleansing composition of any preceding claim, wherein the nonionic
surfactant is
present in an amount of 0.1 to 20 weight % of the composition, optionally 0.5
to 5 weight
%.
18. The cleansing composition of any preceding claim, wherein an amount of
water is 70 to
95 weight % of the composition,
19. The cleaning composition of any preceding claim further comprising a
salt, optionally in
an amount of 0.1 to 1.2 weight % of the composition.
20. The cleansing composition of any preceding claim, wherein the
composition does not
contain a polyacrylate.
21. The cleansing composition of any preceding claim, wherein the
composition is
transparent after 24 hours at 4.5°C
22. A method of cleansing skin comprising washing skin with. the cleansing
composition of
any preceding claim, and optionally rinsing with water.
7

Description

WO 2015/047260 PCT/US2013/061801
CATIONIC AND NONIONIC SURFACTANT CLEANSING COMPOSITION
This is a division of CA 2,922,539, filed September 26, 2013.
BA CKGROU N D
100011 Cationic surfactants can provide antibacterial properties to a
cleansing composition.
When cationic surfactants are mixed with nonionic surfactants, there is
generally a need to use
thickeners to increase the viscosity to a level that is expected by consumers
for a cleansing
composition, such as a liquid hand soap or body wash. While polyacrylate
thickeners can
increase the viscosity, they can make the cleansing composition opaque or
translucent. It would
be desirable to provide a cleansing composition containing cationic and
nonionic surfactants that
is transparent.
BRIEF SUM MARY
[00021 An aqueous cleansing composition. comprising a cationic surfactant, a
nonionic
surfactant, and a thickener comprising an alkoxylated methyl glucose ether,
wherein a weight
ratio of cationic surfactant to nonionic surfactant is greater than 0.9:1.
100031 The combination of the cationionicaionionic surfactant ratio with the
alkoxylated methyl.
glucose ether thickener provides the composition with cold weather stability.
Cold weather
stability is observed when the composition remains transparent after cold
storage.
100041 Further areas of applicability of the present invention will become
apparent from the
detailed description provided hereinafter. lit should be understood that the
detailed description
and specific examples, while indicating the preferred embodiment of the
invention, are intended
for purposes of illustration only and are not intended to limit the scope of
the invention.
DETAILED DESCRIPTION
100051 The following description of the preferred embodiment(s) is merely
exemplary in nature
and is in no way intended to limit the invention, its application, or uses.
100061 As used throughout, ranges are used as shorthand for describing each
and every value
that is within the range. Any value within the range can be selected as the
terminus of the range.
In addition, all references cited herein are hereby incorporated by referenced
in their entireties.
In the event of a conflict in a definition in the present disclosure and that
of a cited reference, the
present disclosure controls.
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WO 2015/047260 PCT/US2013/061801
100071 Unless otherwise specified, all percentages and amounts expressed
herein and elsewhere
in the specification should be understood to refer to percentages by weight.
The amounts given
are based on the active weight of the material.
[00081 For the purpose of calculating a cationic surfactant to nonionic
surfactant ratio, cationic.
surfactant does not include a cationic antibacterial agent selected from the
group consisting of
beazalkonium chloride, benzethonium chloride, and mixtures thereof. While
these materials
may function as a cationic surfaciant, they are not included in the
calculation.
[00091 Transparency is defined as the ability to read 12-;point font through
the composition
contained in a 4oz clear, glass sample bottle of 4cm. thickness. Transparency
is measured after
24 hours at 4.5C.
100101 Viscosity is measured using a Brookfield RVT viscometer with spindle #
5 at 25 rpm at
25C.
[00111 The composition includes a cationic surfactant. The cationic surfactant
can be any
cationic surfactant, but it excludes the cationic bacterial agent for weight
ratio calculation. In
certain embodiments, the cationic surfactant comprises a quaternary ammonium
alkyl salt_ The
quaternary ammonium alkyl salt can be an alkyltrimethylammonium salts. The
salt can be a
halide, such as chloride or bromide, or a methosulfate. The alkyl can be a CS-
C.24 alkyl or a
C14-C18 alkyl. In certain embodiments, the cationic surfactant is
cetyltrimethylammonium
chloride.
100121 In certain embodiments, the cationic surfactant is present in an amount
of 0.1 to 20
weight % of the composition. In other embodiments, the amount is 0.1 to 10, 0
1 to 5, 0.5 to 10,
0.5 to 5.1 to 5, or 2 to 4 weight e.14.
100131 The composition includes a nonionic surfactant. The nonionic
surfactants can be any
nonionic surfactant. Nonionic surfactants include, but are not limited to,
amine oxides, fatty acid
amides, ethoxylated fatty alcohols, block copolymers of polyethylene glycol
and polypropylene
glycol, glycerol alkyl esters, alkyl polyglucosides, polyoxyethylene glycol
octylphenol ethers,
sorban alkyl esters, polyoxyethylene glycol sorbitan alkyl esters, and
mixtures thereof.
Examples of amine oxides include, but are not limited to, latitylamidopropyl
dimethylamine
oxide, mytistylamidopropyl dimethylamine oxide, and mixtures thereof. Examples
of fatty acid
amides include, but are not: limited to, cocomonoethanolamide, lauratnide
monoethanolamide,
cocodiethanolamide, and mixtures thereof.
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WO 2015/047260 PCT/US2013/061801
100141 In certain embodiments, the nonionic surfactant is a combination of an
amine oxide and a
fatty acid amide. In certain embodiments, the amine oxide is a mixture of
lawylamidopropyl.
dimethylamine oxide and myfistylamidopropyl dimethylamine oxide. In certain
embodiments,
the nonionic surfactant is a combination of laurylimyristylarnidopropyi
dimethylamine oxide and
cocomanoethanolamide.
100151 In certain embodiments, the nonionic surfactant is present in an amount
of 0.1 to 20
weight % of the composition. In other embodiments, the amount is 0.1 to 10,
0.1 to 5, 0.5 to 10,
0.5 to 5, or 0.5 to 3 weight %.
[00161 The composition has a cationic:nonionic weight ratio greater than
0.9:1. Optionally, the
ratio is at least 1:1.
100171 In certain embodiments, the composition does not contain an anionic
surfactant.
100181 The composition also includes a thickener comprising an alkoxylated
methyl glucose
ether. The alkoxylation can be ethoxylated and/or propoxylated. In certain
embodiments, it is
ethoxylated. The degree of alkoxylation can be any degree that provides
thickening. In certain
embodiments, the degree of alkoxylation is 100 to 200. In certain embodiments,
the alkoxylation
is 120 to 150. The alkoxylated methyl glucose ether can be esterified with
fatty acid. In certain
embodiments, the alkoxylated methyl glucose ether at least one of an
alkoxylated methyl glucose
dioleate, an alkoxylated methyl glucose trioleate, alkoxylated methyl glucose
distearate. In
certain embodiments, the alkoxylated methyl glucoside is at least one of PEG-
120 methyl
glucose dioleate, PEG-120 methyl glucose trioleate, PEG-120 methyl glucose
distearate. In
certain embodiments, the alkoxylated methyl glucose ether is PEG-120 methyl
glucose dioleate.
[00191 The thickener can be present in any amount to provide any desired
viscosity level. In
certain embodiments, the thickener is present in an amount of 0.1. to 2 weight
% of the
composition. In other embodiments, the amount is 0.1 to I, 0.2 to 1, 0.3 to 1,
0.4 to 1, 0.1 to 0.9,
0.1 to 0.8, 0.1 to 0.7, 0.3 to 0.8, or 0.4 to 0.8 weight %. In one embodiment,
the amount is 0.4 to
0.7 weight %. In certain embodiments, the viscosity is at least 1000 Miles. in
other
embodiments, the viscosity is at least 2000, at least 3000, or at least 4000
mPas. In certain
embodiments, the viscosity is 1000 to 20000, 3000 to 6000, or 3500 to 5000
tnPas.
100201 In certain embodiments, the composition does not include a polyacrylate
thickener.
100211 The composition can include a cationic antibacterial agent selected
from the group
consisting of benzalkonium chloride, benzethonium chloride, and mixtures
thereof. In certain
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WO 2015/047260 PCT/US2013/061801
embodiments, the composition includes benzalkonium chloride. These cationic
antibacterial
agents can be included in their regulatory amount, which can be 0,13 weight %.
1100221 The composition. is aqueous. In certain embodiments, water can be
included in an
amount of 70 to 95 weight % of the composition. In other embodiments, the
amount of water is
90 to 95 weight %.
100231 in certain embodiments, the composition can further include salt, such
as sodium chloride
to assist in increasing viscosity at upper ranges of viscosity. In certain
embodiments, the salt is
present at 0.1 to 1.2 weight % of the composition. In certain embodiments, the
amount is about
0,6 weight%.
100241 The cleansing compositions can be used to cleanse Skin by washing skin
with the
cleansing composition and optionally rinsing with water.
EXAMPLES
100251 The examples and comparative examples are made by mixing. of the
materials. The
compositions are shown in Tables 1 and 2 below. The examples list the
cationicuionionit
surfactant ratio. The viscosity and the transparency after storage at 4.5'C
are measured.
Table I
Material Example 1 Example 2 Example 3
Deionized Water and Minors QS QS QS
1:,auryliMyristylarnidopropyl 1.68 L68 0.6
dimethylamine oxide
Cocomonoethanolamide 0_97 1.02 0.4
Cetrimonium chloride 2.7$ 1.5 3
Benzaik.onium chloride 0.13. 0.13 0.13
PEG 120 Methyl Glucose 0.54 0.6 0_54
Dioleate
Glycerin 2 2
Sodium chloride 0.62 0.62 0_62
Cationic:Nonionic 1.06:1 0.92:1. 3:1.
surfkrant ratio
Transparency after cold Clear Clear Clear
storage
Viscosity (mPas) 4340 4740 5210
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Table 2
Material Comparative Comparative Comparative Comparative
A B C D
, Deionized Water and minors QS QS , 1 OS -, - QS
Lauryl/Myristyiamidopropyl 1.68 1.51 1,68 2
dimethylamine oxide . .
Cocomonoethanolamide , 1.1 1.12 1,12 1
Cetrimonium chloride 7.243 7.25 2.25 , 1
,
Benzalkonium chloride 0,13 0.13 0.13 0.13
PEG 120 1VIethyl Glucose 0.66 0.66 0.54 0.6
Dioleate ,
Glycerin 2 , 7 7 7
SO63111 chloride 0.62 0.62 0.62 0.62
Cationic:Nonionic 0.81:1 0.85:1 i 0,80:1 0.33:1
. surfactant ratio .
Transparency after cold Hazy Hazy Hazy Hazy
. storage .
Viscosity (mPas) 4600 4000 4340 4470
[00261 As can be seen in the examples., the combination of the PEG 120 methyl
glucose dioleate
and the tationic:itonionic surfactant ratio provides a cdhapo*joia that is
clear after cold storage
and has a desired viscosity over 4000 mPas. When PEG-120 methyl glucose
dioleate is present
in all compositions, a desired viscosity is obtained, but when the
cationic:nonionic surfactant
ratio is less than 0.9 in the comparative examples, the composition is hazy
after cold storage.
Date Recue/Date Received 2020-05-15