NZ610535B2 - Cosmetic or dermatological preparation for application on wet skin - Google Patents
Cosmetic or dermatological preparation for application on wet skin Download PDFInfo
- Publication number
- NZ610535B2 NZ610535B2 NZ610535A NZ61053512A NZ610535B2 NZ 610535 B2 NZ610535 B2 NZ 610535B2 NZ 610535 A NZ610535 A NZ 610535A NZ 61053512 A NZ61053512 A NZ 61053512A NZ 610535 B2 NZ610535 B2 NZ 610535B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- preparation
- weight
- polyacrylic acid
- present
- skin
- Prior art date
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- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 150000004804 polysaccharides Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000002599 prostaglandin synthase inhibitor Substances 0.000 description 1
- 150000003180 prostaglandins Chemical class 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229960003471 retinol Drugs 0.000 description 1
- 235000020944 retinol Nutrition 0.000 description 1
- 239000011607 retinol Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000037307 sensitive skin Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229960004245 silymarin Drugs 0.000 description 1
- 235000017700 silymarin Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000010972 statistical evaluation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XVTUQDWPJJBEHJ-KZCWQMDCSA-N tetrastearoyl cardiolipin Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCCCCCCCCCCCC)CO[P@@](O)(=O)OCC(O)CO[P@](O)(=O)OC[C@H](OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC XVTUQDWPJJBEHJ-KZCWQMDCSA-N 0.000 description 1
- 235000019529 tetraterpenoid Nutrition 0.000 description 1
- OULAJFUGPPVRBK-UHFFFAOYSA-N tetratriacontan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCO OULAJFUGPPVRBK-UHFFFAOYSA-N 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 229930003799 tocopherols Natural products 0.000 description 1
- 231100000730 tolerability Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000036572 transepidermal water loss Effects 0.000 description 1
- 230000001960 triggered Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 150000003712 vitamin E derivatives Chemical class 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 239000008307 w/o/w-emulsion Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 235000020334 white tea Nutrition 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
- A61K2800/30—Characterized by the absence of a particular group of ingredients
- A61K2800/33—Free of surfactant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/592—Mixtures of compounds complementing their respective functions
- A61K2800/5922—At least two compounds being classified in the same subclass of A61K8/18
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/594—Mixtures of polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/596—Mixtures of surface active compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/31—Hydrocarbons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/342—Alcohols having more than seven atoms in an unbroken chain
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8147—Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q9/00—Preparations for removing hair or for aiding hair removal
- A61Q9/02—Shaving preparations
Abstract
Disclosed herein is an aqueous cosmetic or dermatological preparation for application on wet or moist skin wherein the preparation comprises i) at least two different polyacrylic acid polymers, ii) at least two different C14-22 fatty alcohols, and iii) at least about 13 % by weight of microcrystalline wax based on the total weight of the preparation, wherein besides the polyacrylic acid polymers, no further emulsifiers are present in the preparation. Also disclosed is the use of the preparation in the preparation of a skin care medicament, and the use of the preparation in a wet shaving method. ne wax based on the total weight of the preparation, wherein besides the polyacrylic acid polymers, no further emulsifiers are present in the preparation. Also disclosed is the use of the preparation in the preparation of a skin care medicament, and the use of the preparation in a wet shaving method.
Description
COSMETIC OR OLOGICAL PREPARATION FOR APPLICATION
ON WET SKIN
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application claims priority under 35 U.S.C. § 119 of German Patent
Application No. 10 2011 085 500.9, filed October 31, 2011, and German Utility
Model Application No. 20 2012 000 164.7, filed January 10, 2012. The entire
disclosures of these documents are expressly incorporated by reference herein.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The t invention relates to a substantially emulsifier-free cosmetic or
dermatological preparation comprising polyacrylic acid rs, fatty alcohols and
microcrystalline wax. The preparation is suitable for application to skin (in particular,
wet or moist skin) and thus s rubbing cream in while showering.
2. Discussion of Background Information
Cosmetic or dermatological preparations can be divided on the basis of their
application time and their application purpose. Some products are immediately washed
off after ation (“rinse—off”), others are intended to remain on the skin for longer
periods of time and are effective there (“leave-on”).
Cosmetic preparations for skin care are primarily developed for application to dry
skin. This form of preparations are known as leave-on ations, such as creams,
lotions or body milk. Often, these are ated as emulsions, in particular W/O,
O/W, O/W/O or W/O/W emulsions.
Emulsions are generally understood as meaning heterogeneous systems which
comprise two liquids that are immiscible or only miscible to a limited extent and
which are usually referred to as . In an emulsion, one of the two liquids (water
or oil) is dispersed in the form of very fine droplets in the other liquid. The liquids
(pure or in the form of solutions) are present in an emulsion in a more or less fine
distribution, which is generally only stable to a limited extent.
If the two liquids are water and oil and oil droplets are present in fine distribution in
water, then this is an oil-in-water on (O/W emulsion, e.g. milk). The basic
character, for example electrical conductivity, sensory properties, ability of the
continuous phase to stain, of an O/W emulsion is defined by the water. In the case of a
in-oil on (W/O emulsion, e.g. butter), the principle is reversed, the basic
character here being determined by the oil.
Leave-0n preparations are not suitable for application to wet or moist skin. Due to the
emulsifiers present, they are able to emulsify water and, due to the lipids, in some
cases leave behind an oily film.
Rinse-off ations are designed for ation under the shower or during
bathing. By contrast, rinse—off preparations, however, involve to a lesser extent the
care aspect as is obtained upon rubbing cream in.
It is desirable to e a preparation which exhibits a skin care effect and can also be
applied as rinse-off, for example under the .
One property of cosmetic products that is very important to the consumer but can only
be measured quantitatively with difficulty is their texture and sensory properties. The
term “texture” is understood as meaning those properties of a cosmetic which can be
uted to the constitution of the preparation, perceived by sense of feel and touch
and in some cases expressed in terms of mechanical or rheological flow properties.
The texture can be tested in particular by means of ics. The texture of cosmetic
products, which can optionally be influenced with the help of additives, is of virtually
identical importance to the consumer as their effects which can be ained
objectively.
The term “sensorics” refers to the scientific discipline which deals with the evaluation
of cosmetic ations on the basis of sensory impressions. The y assessment
of a cosmetic is made on the basis of the visual, olfactory and haptic impressions.
0 Visual impressions: all features that can be perceived by eye (color, shape,
structure).
0 Olfactory impressions: all scent impressions that can be perceived upon
breathing in air through the nose, which can often be differentiated into
initial scent (top note), main scent (medium note, body) and after-scent
(base note). The le substances only released upon application also
contribute to the olfactory impression.
o Haptic impressions: all sensations of the sense of touch which concern
primarily constitution and consistency of the product.
The sensory analysis makes use of the possibility of ascertaining the l y
impression of a product ally. Disadvantages of sensory analysis are the
subjectivity of the sion, the ease with which test subjects can be influenced and
the considerable scattering of the results brought about as a consequence. These
failings are nowadays countered by using groups of trained test subjects, mutual
shielding of the testers, and statistical evaluation of the mostly extensive analytical
data.
It was ore a further object of preferred forms of the present invention to provide
preparations which, besides the criteria ary for cosmetics such as compatibility,
storage stability and the like, also offer the consumer essential, hitherto unknown
ic, in particular sensory, benefits. In particular, the sought preparations should
be suitable for use in the body care sector, i.e. for application to the entire body and at
the same time be sensorily attractive.
EP 1 390 006 A2, the entire disclosure of which is incorporated by reference herein,
discloses oil-in—water emulsions for application to wet skin. The preparations of EP 1
390 006 A2 comprise water, a sion stabilizer, a structured oil phase and
structurant, which form a stable network of distantly distributed solids in the liquids.
Besides preferred inorganic structurants, solid fatty acid esters and vaseline are
specified inter alia as organic structurants. y modifiers specified are
additionally nonionic polymers such as polyethylene oxide, polyvinyl alcohol,
polyvinyl acetate pyrrolidones, anionic polymers such as polyaspartate, polymaleates
and sulfonates, cationic polymers and mixtures thereof.
EP 2 174 639 A2, the entire disclosure of which is incorporated by reference herein,
discloses oil-in—water ons for application to wet skin. The preparations
se water-soluble polymer, pasty oils and liquid oil in combination with a large
amount of ol. Examples of water-soluble polymers are inter alia natural
polymers such as vegetable polysaccharides, animal proteins, semi-synthetic polymers
such as cellulose, starch, tes, ccharide derivatives, synthetic polymers
such as vinyl polymers such as polyvinyl alcohol, nylpyrrolidone, polyvinyl
methyl ether, yvinyl polymers, alkyl-modified carboxyvinyl polymers (acrylate—
alkyl methacrylate copolymer, etc.) and sodium polyacrylate, and also polyethylene
glycol and ethylene oxide-propylene oxide block copolymers.
Any discussion of the prior art throughout the specification should in no way be
considered as an admission that such prior art is widely known or forms part of
common general knowledge in the field.
It is an object of the present invention to overcome or ameliorate at least one of the
antages of the prior art, or to provide a useful alternative.
SUMMARY OF THE INVENTION
The present invention provides an aqueous cosmetic Or dermatological ation for
application on wet or moist skin, wherein the preparation comprises (i) at least two
different polyacrylic acid polymers, (ii) at least two different €14.22 fatty ls, and
at least about 13 % by weight of (iii) microcrystalline wax, based on a total weight of
the preparation, wherein besides polyacrylic acid polymers (i), no further emulsifiers
are present in the preparation.
Unless the context clearly requires otherwise, throughout the description and the
claims, the words “comprise”, “comprising”, and the like are to be construed in an
inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the
sense of “including, but not limited to”.
In one aspect, the iylic acid polymers (i) may comprise (e.g., consist of)
polymers selected from acrylates/C10-30 alkyl te crosspolymers and carbomers.
For example, the preparation may se two different acrylates/ClO-30 alkyl
acrylate crosspolymers (having different properties) and one carbomer. The weight
ratio of the two different acrylates/C10-30 alkyl acrylate olymers may, for
example, be from about 3:1 to about 1:3, e.g., from about 2:1 to about 1:2, or about
1:1. The weight ratio of the two different acrylates/ClO-30 alkyl acrylate
crosspolymers (together) to the carbomer may, for example be from about 20:1 to
about 5:1, e.g., from about 12:1 to about 8:1, or about 10:1.
In another aspect, the polyacrylic acid polymers of ent (i) may comprise at
least one polymer having emulsifying properties and/or at least one polymer which
improves the sensory properties and/or increases the stability of the preparation,
especially at ed atures.
In another aspect of the preparation of the present invention, the ation may
comprise a total of from about 0.05 % to about 2 % by weight, e.g., a total of from
about 0.2 % to about 1 % by weight, or a total of from about 0.2 to about 0.5 % by
weight of component (i), based on the total weight of the preparation.
In another aspect, the preparation may comprise a total of from about 3 % to about 14
% by weight, e.g., from about 4 % to about 12 % by weight, or a total of from about 7
% to about 9 % by weight of component (ii), based on the total weight of the
preparation.
In another aspect, ent (ii) may comprise at least one C14 fatty alcohol (C14), at
least one C13 fatty alcohol (C18) and at least one C‘s/C13 fatty alcohol mixture
(C16/C18). For example, in the weight ratio of the fatty alcohols C14, C18 and
C16/18, a:b:c, a may range from about 0.5 to about 2, b may range from about 1 to
about 3, and c may range from about 2 to about 6. For example, a may be 1, b may be
about 2, and c may be about 5.
In another aspect of the preparation, component (ii) may comprise at least two (e.g.,
all) of myristyl alcohol, l alcohol, and cetearyl l.
In another aspect, the ation may comprise from about 0.5 % to about 2 % by
weight (e.g., from about 1 % to about 2 % by weight) of C14 fatty alcohols, from about
1.5 % to about 3.5 % by weight (e.g., from about 2 % to about 3 % by ) of C18
fatty alcohols and from about 4 % to about 6 % by weight (e.g., from about 4.5 % to
about 5.5 % by weight) of C16/C13 fatty alcohol mixture, based on the total weight of
the ation.
In yet r aspect, the preparation of the present invention may se at least
about 15 % by weight, e.g., at least about 16 % by weight of component (iii).
In another aspect, the preparation may comprise not more than about 35 % by weight,
e.g., not more than about 30 % by weight, or not more than about 25 % by weight of
component (iii).
In a still further aspect, the preparation of the present invention may further comprise,
as component (iv), one or more hydrocarbon oils. For example, the preparation may
comprise at least about 5 % by weight, e.g., at least about 7 % by weight of
component (iv), based on the total weight of the preparation and/or the weight ratio
component (iii) : component (iv) may be from about 3:1 to about 1:1, e.g., about 2:1.
In another aspect, the preparation may comprise a total of component (iii) plus
component (iv) of at least about 20 % by weight, e.g., at least about 22 % by weight,
or at least 25 % by weight and not more than about 60 % by weight, e.g., not more
than about 45 % by weight, not more than about 40 % by weight, or not more than
about 35 % by weight, based on the total weight of the preparation.
In another aspect of the preparation of the present invention, the preparation may
further comprise at least about 45 % by weight, e.g., at least about 50 % by , or
at least about 55 % by weight, but usually not more than about 70 % by weight, e.g.,
not more than about 65 % by weight, or not more than about 60 % by weight of water,
based on the total weight of the preparation.
In another aspect of the preparation of the present invention, the ation may
further comprise at least one moisturizer. For example, the at least one moisturizer
may comprise glycerol and the preparation may comprise, for example, at least about
4 % by weight, e.g., at least about 5 % by , at least about 10 % by weight, or at
least about 15 % by weight of glycerol, based on the total weight of the preparation.
The present invention also provides an aqueous cosmetic or dermatological
preparation which is le for application on wet or moist skin. The preparation
comprises at least about 50 % by weight of water, is ntially emulsifier—free and
surfactant-free and comprises from about 0.2 % to about 1 % by weight of (i) at least
three different polyacrylic acid polymers of which at least one has emulsifying
properties and at least one improves the y properties (e.g., upon absorption of
free water) and/or increases the stability of the preparation (particularly at elevated
temperatures), from about 7 % to about 9 % by weight of (ii) at least three different
C1442 fatty alcohols, from about 16 % to about 30 % by weight of (iii) microcrystalline
wax, and at least about 6 % by weight of (iv) one or more hydrocarbon oils, based on
the total weight of the ation. Furthermore, the weight ratio (iii) : (iv) is from
about 1.521 to about 2.521, e.g. about 2:1.
In one aspect, the preparation may further ses at least about 5 % by weight of
glycerol, based on the total weight of the preparation.
The present ion also provides a method of caring for skin. The method
comprises applying a preparation according to the present invention as set forth above
ding the various aspects thereof) to rably wet or moist) skin. Preferably the
method comprises using the preparation during showering or bathing and/or in
combination with water having a temperature of at least about 30 °C and usually not
higher than about 40 °C (e.g., not higher than about 35 °C) and/or subsequent to the
cleansing of the skin or body.
The present invention also provides a method of wet shaving. The method comprises
applying the preparation according to the t invention as set forth above
ding the various s thereof) to (wet) skin prior to shaving by a wet shaving
method.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
The particulars shown herein are by way of example and for purposes of illustrative
discussion of the embodiments of the present invention only and are presented in the
cause of providing what is believed to be the most useful and readily understood
description of the principles and tual aspects of the present invention. In this
regard, no attempt is made to show structural details of the t invention in more
detail than is necessary for the fundamental understanding of the present invention, the
description making apparent to those skilledin the art how the several forms of the
present invention may be embodied in practice.
The preparation according to the present invention is substantially free of
(conventional) emulsifiers. In this regard, it is pointed out that the term “emulsifier” as
used herein and in the appended claims does not include polyacrylic acid polymers
having emulsifying properties, which polymers may be comprised in component (i) of
the preparation. On the contrary, a preparation according to the present invention
preferably comprises at least one polyacrylic acid polymer that has emulsifying
ties. Put another way, besides polyacrylic acid polymer(s), no further
emulsifiers are present in the preparation according to the invention in any significant
(emulsifying) concentration. It further is pointed out that the term “substantially” in
connection with “emulsifier-free” is intended to indicate that the preparation does not
n any emulsifier or combination of emulsifiers in a concentration which would
result in a noticeable emulsification. Accordingly, the concentration of emulsifier(s) in
the instant preparation, if present at all, will usually be not higher than about 0.02 %,
e.g., not higher than 0.01 % or not higher than 0.001 % by weight, based on the total
weight of the preparation (not ing any polyacrylic acid polymer(s) which may
be comprised in component (i)).
The preparation of the present invention comprises at least two (e.g., two, three, four
or more, preferably at least three) different polyacrylic acid polymers, i.e., polyacrylic
acid polymers which differ from each other with t at least one of their
properties.
The term crylic acid polymers” as used herein and in the appended claims
s the polymers of acrylic acid and/or methacrylic acid as well as acrylate
crosspolymers known in cosmetics. Preferably they include polymers
(macromolecules) with a high lar weight (> 1 l) which comprise a
backbone of polyacrylic acid and small amounts of polyalkenyl ether inkages.
They are also referred to as carbomers. Carbomers are d for example into types
A, B and C. They differ, for example, in forming gels with different viscosities
(United States Pharmacopoeia, USP). These water-soluble or dispersible rs can
bring about a significant viscosity increase in the liquid in which they are dissolved or
dispersed. This is brought about by the formation of carbomer microgels in the water.
Other preferred polyacrylic acid rs for use in the present invention include
acrylate crosspolymers which exert a polymeric emulsifier effect. Polymeric
emulsifiers are primarily polyacrylic acid polymers with a high lar weight.
These emulsifying polyacrylic acid polymers comprise a small lipophilic fraction in
on to the hydrophilic main part. Preferred within the context of the present
ion are acrylate crosspolymers having the INCI name “Acrylates/C10-30 Alkyl
Acrylate Crosspolymer”. Representatives thereof are available, for example, under the
trade names Pemulen® TR-1 and Pemulen® TR-2 and also Carbopol® 1342,
Carbopol® 1382 and ol® ETD 2020 from . Preferred acrylates/ClO-
30 alkyl te crosspolymers for use in the present invention include Pemulen®
TR—l and Carbopol® 3128 from Lubrizol.
A preferred combination of polyacrylic acid polymers for use in the present invention
includes a polyacrylic acid polymer with emulsifying effect, such as Pemulen® TR-l
combined with other polyacrylic acid polymers, such as Carbopol® 3128, which
e the sensory ties and ensure the stability of the preparation (especially at
elevated temperatures) and the combination with free water.
Particular preference is given to a combination of (at least) three polyacrylic acid
polymers, i.e., (a) (at least) one polyacrylic acid polymer having an emulsifying effect,
such as e.g. Pemulen® TR-l or Pemulen® TR-2, combined with (b) (at least) one
polyacrylic acid polymer which improves the sensory properties and ensures the
stability of the preparation, especially at elevated temperatures (e.g. Carbopol® 3128)
and (c) (at least) one polyacrylic acid polymer which improves the sensory properties
upon absorbing free water (e.g. Carbopol® 981). Merely by way of example,
component (i) of the ation according to the present invention may comprise a
total of from about 0.05 % to l % by , e.g., of from about 0.09 % to about 0.25
% by weight of (a) plus (b) (e.g., in a weight ratio of from about 2:1 to about 1:2 such
as about 1:1) and from about 0.05 % to about 1 % by weight, e.g., from about 0.01 %
to about 0.03 % by weight, of (c). For example, the preparation may comprise a
PCT/EP2012l070937
combination of ( 1) from about 0.08 % to about 0.15 % by weight of Pemulen® TR—l
(and/0r Pemulen® TR-2), (2) from about 0.08 % to about 0.15 % by weight of
ol® 3128, and (3) from about 0.01 % to about 0.03 % by weight of Carbop01®
981.
Component (i) will usually be present in the preparation of the present invention in a
) concentration of at least about 0.05 % by weight, e.g., at least about 0.1 % by
weight, at least about 0.15 % by weight, or at least about 0.2 % by weight, but usually
not higher than about 1 % by weight, e.g., not higher than about 0.5 % by weight, not
higher than about 0.3 % by weight, or not higher than about 0.25 % by weight.
The polyacrylic acid polymers which are comprised in the preparation of the present
invention may also differ in the viscosities they provide. For example, when measured
in a 0.2 % by weight solution at 25 °C with a Brookfield RVT or RVF at 20 rpm with
a spindle No. 5, Pemulen® TR-l shows a minimum/maximum emulsion viscosity of
6,500/15,500 mPas, whereas the corresponding values for Carbopol® 1342 are
11,000 mPas.
Regarding component (ii) of the preparation of the t invention, C14-22 fatty
alcohols denote fatty alcohols having a carbon number from 14 to 22, e.g., 14, 16, 18,
or 22 carbon atoms. ably, the fatty alcohols are selected from linear
(saturated) fatty alcohols and in particular, from one or more of myristyl alcohol
(C14H300), cetyl alcohol (or palmityl alcohol) (C16H34O), stearyl alcohol (or octadecyl
alcohol) (C13H380), and cetylstearyl alcohol (cetearyl alcohol), a mixture of
predominantly cetyl alcohol (hexadecanol) and stearyl l (octadecanol), (CAS
No. 80055).
The preparation advantageously comprises at least three C1412 fatty alcohols and in
particular, at least one C14 fatty alcohol (C14), at least one C13 fatty alcohol (C18) and
at least one C16/C13 fatty alcohol mixture (C16/C18) is present, preferably in each case
2012/070937
only one C14 fatty alcohol, one C13 fatty alcohol and one C16/C13 fatty alcohol mixture.
If only two fatty alcohols are to be ed, the C14 fatty l is preferably
absent.
Usually the C14—22 fatty alcohols will be present in the preparation of the present
ion in a total concentration of at least about 3 % by weight, e.g., at least about 4
% by weight, at least about 5 % by weight, at least about 6 % by weight, or at least
about 7 % by , but not higher than about 14 % by weight, e.g., not higher than
about 13 % by weight, not higher than about 12 % by weight, not higher than about 11
% by weight, not higher than about 10 % by weight, or not higher than about 9 % by
weight, based on the total weight of the preparation.
The weight percentages of the fatty alcohols will often be from about 0.5 % to about
2.5 % by weight for C14 fatty alcohol(s) (C14), from about 1.5 % to about 4.0 % by
weight for C18 fatty alcohol(s) (C18) and from about 3.5 % to about 6 % by weight
for C16/C18 fatty alcohols (C16/18), based on the total weight of the preparation. For
example, the fatty ls contained in the ation of the present invention may
comprise or consist of (1) from about 0.5 % to about 2.0 % by weight of myristyl
alcohol, (2) from about 1.5 % to about 3.5 % by weight of stearyl alcohol, and (3)
from about 3.5 % to about 6 % by weight of cetearyl alcohol. Component (1) may
optionally be absent.
The combination of at least two polyacrylic acid polymers and at least two C1422 fatty
alcohols aids in the stabilization of the preparation of the present invention. If in each
case only one representative of the polyacrylic acids and fatty alcohols is selected, the
stability tends to be inadequate and in particular the skin feel upon application to
moist/wet skin tends to be unpleasant, waxy, harsh, squeaky.
Regarding ent (iii) of the preparation of the present ion, microcrystalline
wax is a generic term and alternative names therefor include Cera Microcristallina
[Germanz Mikrokristalline Wachse, French: Cire Minerale]. rystalline wax
(cera microcristallina) is a type of wax produced by de-oiling petrolatum, as part of
the petroleum refining process. In contrast to the more ar in wax which
contains mostly unbranched alkanes, microcrystalline wax contains a higher
percentage of isoparaffinic hed) hydrocarbons and naphthenic hydrocarbons.
It exhibits finer crystals than paraffin wax. It predominantly consists of high
molecular weight saturated aliphatic hydrocarbons having more than 35 carbon
atoms in the molecule. It is generally darker, more viscous, denser, tackier and more
elastic than paraffin wax, and has a higher molecular weight and melting point. The
elastic and adhesive characteristics of microcrystalline wax are related to the non-
straight chain components which it ns. Typical microcrystalline wax crystal
structure is small and thin, making it more flexible than paraffin wax. A
microcrystalline wax which is suitable for use in the present invention has the CAS
No. 63231-60—7 (and or EINECS/EILINCS N0. 2641).
Microcrystalline wax when ed by wax refiners is typically produced to meet a
number of ASTM cations such as congeal point, needle penetration, color, and
viscosity. Microcrystalline wax can generally be categorized into "laminating" grades
and "hardening" grades. The laminating grades typically have a melting point of 140-
175 F and a needle penetration of 25 or above. The melting point of hardening grades
will usually range from about 175-200 F, and the needle penetration thereof will
usually be 25 or below. Both grades are suitable for use in the present invention.
Microcrystalline wax is derived from the ng of the heavy distillates from
lubricant oil tion. This duct then must be de—oiled at a wax refinery.
Depending on the end use and desired specification, the product then may have its
odor removed and color removed. This is usually done by means of a filtration method
or by hydro-treating the wax material.
Microcrystalline wax for use in the instant invention will usually be subject to high
quality standards. The microcrystalline wax for use in the instant invention y
will be substantially free from, for example, polycyclic aromatics, sulfur-containing
compounds and other allergens such as, e.g., crop protection agents. Due to its
chemical neutrality rystalline wax has no allergenic potential. Allergenic
reactions triggered by microcrystalline wax are to unknown. Compared to
animal or plant oils, microcrystalline wax has a high ion stability, i.e., does not
become rancid and requires no additional izers. Microcrystalline wax and thus,
also the preparations containing it therefore also require no or vely small amounts
of additional preservatives.
The skin care properties of microcrystalline wax are ily in the area of skin
moisturization. Microcrystalline wax forms a partially occlusive protective film on the
skin which protects it against drying out. This is very important particularly in the case
of dry skin or highly stressed skin with a damaged skin barrier. Partially occlusive
care ts position themselves in the upper horny layer and thereby reduce the
transepidermal water loss. In combination with skin moisturizers (e.g., glycerol), they
help to rapidly restore the brium of the skin. It is noted that very similar
substance mixtures, the so-called mineral waxes, are naturally present in relatively
large amounts also in various plant waxes (e.g. candelilla wax) and insect waxes (e.g.
beeswax).
Microcrystalline wax is present in the preparation of the present invention in a
concentration of at least about 13 % by weight, e.g., at least about 14 % by weight, at
least about 15 % by weight, or at least about 16 % by , and will usually be
present in a concentration of not higher than about 40 % by weight, e.g., not higher
than about 35 % by weight, not higher than about 30 % by weight, or not higher than
about 25 % by weight.
In on to components (i), (ii) and (iii), the preparation of the instant invention
preferably also comprises component (iv), i.e., one or more hydrocarbon oils. A
preferred hydrocarbon oil for use in the instant invention includes medical white oil,
also called paraffinum liquidum. Medical white oils are substance mixtures which
have a varying composition depending on origin. For example, products which have
been obtained from geologically old Venezuelan petroleum are particularly rich in
enes (cycloalkanes). By contrast, the geologically young North Sea oil is low in
naphthenes and ses inantly acyclic compounds.
Naphthene-rich mineral oils only occur in selected areas of the world (Venezuela,
Saudi Arabia, Russia). They are difficult to obtain and ingly expensive. Low-
naphthene mineral oils are easier to obtain and are rather to be classed as good value.
A disadvantage of the low-naphthene l oils is that these oils or mixtures with
these oils with, inter alia, microcrystalline wax used in emulsions ilize the
emulsions, which results in a severe oil separation.
Naphthenes 0r alicyclic hydrocarbons are ring-shaped hydrocarbons. The naphthene
content of crude oil is generally 5 %, in the case of Russian oil it is often more than
this, and in the case of American oil below this. Naphthenes have a higher bond
tension than paraffins in the molecular structure and therefore have a higher g
value.
Cycloalkanes (cycloparaffins) are saturated ring-shaped hydrocarbons of the general
formula Cann (n = 3, 4, 5 ...), the names of which are formed from that of the
corresponding alkane and the prefix cyclo-. The cycloalkanes, inter alia, cyclopentane
and cyclohexane, occurring in eum are also called enes.
Preferably, naphthene-containing medical white oil is used in the preparation of the
instant invention.
Component (iv) will usually be present in the preparation of the present invention in a
concentration of at least about 5 % by weight, e.g., at least about 6 % by weight, at
least about 7 % by weight, or at least about 8 % by weight. Further, the total
concentration of components (iii) plus (iv) will often be at least about 20 % by weight,
e.g., at least about 22 % by weight, or at least about 25 % by weight, but will usually
be not higher than about 60 % by weight, e.g., not higher than about 50 % by weight,
not higher than about 40 % by weight, or not higher than about 35 % by weight, based
on the total weight of the ation. The weight ratio ent (iii) : component
(iv) preferably is from about 3:1 to about 1:], e.g., from about 1.521 to about 2.5:1.
In many cases a long-lasting and detectable, sensorily attractive film will be obtained
on the skin only when the combined concentration of components (iii) plus (iv) is at
least about 20 % by weight. At total concentrations above about 60 % by weight the
preparation often can no longer be easily spread and becomes cream-like. The higher
the total concentration of (iii) plus (iv), the higher the consistency and/or solidity as
well, although this may be desired in specific preparations.
In this regard, it is noted that mixtures of components (iii) and (iv) are sometimes also
referred to as “microcrystalline wax”, “cera microcristallina” or ine” (now a
ered trade name of CheseBorough Ponds). However, as used herein and in the
appended claims the term crystalline wax” denotes exclusively component (iii),
i.e., without component (iv).
Due to the relatively high concentration of microcrystalline wax, i.e., component (iii),
in the preparation of the present invention only non-polar to medium-polar lipids
(including, e.g., esters of glycerol and fatty acids) are advantageously present, if at all,
in the preparation (in addition to component (iv)). Otherwise, the stability is more
difficult to establish due to the ntial absence of (conventional) emulsifiers. At
any rate, silicone oils are preferably not present in the preparation of the t
ion. If they are t, their concentration will usually not be higher than about
2012/070937
1 % by weight, e.g., not higher than about 0.5 % by weight, or not higher than about
0.1 % by weight.
Within the context of the present disclosure, the sion “lipids” is used as a
generic term for fats, oils, waxes and the like, as is well known to the person skilled in
the art. The terms “oil phase” and “lipid phase” are also used synonymously.
Oils and fats differ inter alia in their polarity. It is suggested to adopt the interfacial
tension towards water as a measure of the polarity index of an oil or of an oil phase. In
this case, the greater the polarity of the oil phase in question, the lower the interfacial
tension between this oil phase and water. According to the invention, the interfacial
tension is considered to be one le measure of the polarity of a given oil
component.
The interfacial tension is the force which acts on an imaginary line d at the
interface between two phases and one meter in length. The physical unit for this
interfacial tension is classically calculated according to the onship force/length
and is usually given in mN/m newtons divided by meters). It has a positive sign
if it strives to make the interface smaller. In the converse case, it has a ve sign.
The preparation according to the invention permits for the first time the application of
care under the shower or in a bath tub, although the preparation can also be d to
age on skin that is not wet or moist.
The preparation according to the invention is advantageously formulated only with
preservatives which have a solubility in water of more than 0.75 % at 20 °C. Due to
the substantial absence of emulsifiers, the result may otherwise be destabilizations and
crystallizing out. Preferably, the one or more preservatives include at least
phenoxyethanol (solubility in water at 20 °C about 2.4 % by weight); preferably, they
will not include methylisothiazolinone and/or parabens such as methyl paraben.
W0 2013/064391
The preparations according to the invention are advantageously prepared differently to
customary polyacrylic acid-containing preparations. Current practice is to predisperse
the “dusty” polyacrylic acids in a lipid and then to introduce them into the water
phase. In the case of the preparations according to the invention, the polyacrylic acid
polymers are dispersed in water because ise a barely perceptible residue is
t and can be felt on the skin. As a result of this mode of preparation, the
polyacrylic acid becomes more “activated” than if wetted with lipid.
ations according to the invention can, er, also be used as pre—shaving
product in order to improve the shaving . As a result of the long-lasting
lipid/polymer film, the razor blade glides easily and can also grasp deeper hairs.
The preparation according to the present invention is preferably also substantially free
of surfactants. In other words, one or more surfactants are preferably present, if at all,
in a concentration which does not noticeably reduce the surface n. Usually, total
concentrations of tants, if present at all, in the ation of the present
invention are not higher than about 0.02 %, e.g., not higher than 0.01 %, or not higher
than about 0.001 % by weight, based on the total weight of the preparation.
Surfactants are substances which lower the e tension of a liquid or the interfacial
tension between two phases and permit or support the formation of dispersions.
Surfactants enable two liquids that are actually not miscible with one another, such as,
for example, oil and water, to be dispersed.
Furthermore, surfactants are described as amphiphilic substances which are able to
dissolve c, nonpolar substances in water. As a result of their specific molecular
structure with at least one hydrophilic and one hydrophobic molecular moiety, they
provide for a reduction in the surface tension of the water, the wetting of the skin, the
tation of soil removal and dissolution, ease of rinsing off and — if desired — for
foam regulation.
The hydrophilic moieties of a surfactant molecule are mostly polar functional groups,
for example —COO', -OSng‘, -SO3‘, whereas the hydrophobic moieties are generally
nonpolar hydrocarbon radicals. Surfactants are generally classified according to type
and charge of the hydrophilic molecular moiety. In this connection, four groups can be
differentiated:
0 anionic surfactants,
0 cationic surfactants,
0 amphoteric surfactants and
0 nonionic tants.
c surfactants generally have carboxylate, sulfate or sulfonate groups as
functional groups. In an aqueous solution, they form negatively charged c ions
in an acidic or neutral medium. Cationic tants are almost ively
characterized by the presence of a quaternary ammonium group. In an aqueous
solution, they form positively charged organic ions in an acidic or neutral medium.
Amphoteric surfactants contain both c and cationic groups and accordingly
behave like anionic or cationic surfactants in aqueous solution depending on the pH.
In a strongly acidic medium, they have a positive , and in an alkaline medium
they have a negative charge.
Furthermore, detergent substances are known, such as, for example, cationic
surfactants, in ular quaternary ammonium compounds. A ent substance is
used in laundry detergents, shing detergents, shampoos, shower gels and refers
to the fraction of the formulation which influences the washing or cleaning
performance. Detergent substances increase the “solubility” of fat and dirt particles in
water which adhere in the laundry or on the body. They can be of natural or synthetic
origin. They are differentiated into anionic, ic, ampholytic or nonionic
ing on the nature of their charge.
Emulsifiers enable two immiscible liquids (for example oil in water) to be combined
to give an emulsion. Due to their amphiphilic character, they penetrate into the oil
with their fat-soluble moiety. As a result of the hydrophilic moiety, the oil droplet that
is now formed by stirring can be dispersed in the aqueous environment. Emulsifiers
have primarily no detergent, surface n lowering character.
Preferred preparations according to the present invention include a preparation which
comprises, based on the total weight of the preparation:
from about 14 % to about 18 % by weight of microcrystalline wax;
from about 6 % to about 10 % by weight of medical white oil (paraffinum
liquidum);
from about 0.01 % to about 0.03 % by weight of (at least) one polyacrylic acid
polymer A which improves the sensory properties upon ing free water
(e.g. Carbopol® 981);
from about 0.07 % to about 0.12 % by weight of (at least) one polyacrylic acid
polymer B having an fying effect, ( e.g. Pemulen® TR-l and/or
Pemulen® TR-2);
from about 0.07 % to about 0.12 % by weight of (at least) one polyacrylic acid
polymer C which improves the sensory properties and ensures the stability of
the preparation, especially at ed temperatures (e.g. Carbopol® 3128);
from about 0.7 % to about 1.2 % by weight of myristyl alcohol;
from about 1.5 % to about 2.5 % by weight of stearyl l; and
from about 4.5 % to about 5.5 % by weight of cetearyl alcohol.
Polyacrylic acid polymer C and/or myristyl alcohol may optionally be absent from the
above ation. In this case the tration of polyacrylic acid polymer B may be
up to about 0.15 % by weight and/or the concentration of stearyl alcohol may be up to
about 3.5 % by weight.
The preparation according to the present invention may also comprise cosmetic
auxiliaries and further active ingredients as are arily used in cosmetic
preparations such as, e.g., dyes and coloring pigments, rizing and/0r humectant
substances (such as, e.g., glycerol, urea, and certain amino acids), fillers (such as, e.g.,
aluminum starch octenylsuccinate), foam stabilizers, UV filter substances, electrolytes
(e.g., sea salt), fragrance and c ts, ed they do not adversely affect
the desired properties of the preparation.
The preparation of the present invention may moreover comprise one or more active
l0 ingredients which have a positive influence on skin. Active ingredients for use in the
present invention preferably t a skin moisturizing effect and/0r then the
barrier function of skin and/or promote the restructuring of the connective tissue
and/or support the function of dry skin and/or positively influence irritated skin (both
sensitive skin in general and skin irritated by noxae such as UV light or chemicals)
and/or reduce wrinkles and/or protect esthetically unattractive skin such as aged skin
and/or improve the appearance of dry or rough skin and/or reduce hyperpigmentation,
hypopigmentation, defective pigmentation and/or age spots and/or reduce itching
and/or visible blood vessel dilation such as teleangiektasis or cuperosis.
Non-limiting specific es of active ingredients which may be comprised in the
preparation of the present invention e bioquinones such as, e.g., ubiquinone
Q10, isoflavone and isoflavonoids as well as isoflavonoid containing plant extracts
such as soy and clover extracts, flavonoids, genistein, arctiin, cardiolipin, anti-freezing
proteins, hop extracts, hop-malt extracts, ascorbic acid and tives thereof,
tocopherol and esters thereof, biotin, creatine, creatinine, nic acid, green tea
extracts and solutions, white tea extracts or solutions, sides, various ts of
licorice root, licochalcone A, silymarin, silyphos, dexpanthenol, ethanol, inhibitors of
the prostaglandin metabolism and in particular, cyclooxygenase inhibitors, inhibitors
of the leucotriene metabolism and in particular, 5-lipoxygenase inhibitors, inhibitors
of the 5-lipoxygenase inhibitor n, FLAP, folic acid, phytoene, flavone glycosides
2012/070937
such as, e.g., a-glucosylrutin, carnitine, polydocanol, carotenoids, taurine,
dihydroxyacetone, 8-hexadecene-1,16 dicarboxylic acid, retinol and esters thereof,
vitamin E and derivatives f, long chain hyaluronic acids (e.g., those having an
average molecular weight of from 1 to 3 million ), and short chain hyaluronic
acids (e.g., those having an average molecular weight of from 5,000 to 1 million
Dalton).
The one or more active ingredients, if present, will usually be present in a total
concentration of from about 0.] % to about 30 % by , based on the total weight
of the preparation.
It has singly been found that the preparation of the present invention can
se the availability of certain active ingredients and other optional components
contained therein. In other words, the same effect is achieved with a lower amount of
component. This is a significant age for the consumer because many optional
components such as, e.g., perfume oils contain constituents which can trigger allergic
reactions and the like. Thus, reducing the concentration of these components without
reducing their effect is also an advantage with respect to mildness and tolerability of
the preparation.
The viscosity of a preparation of the present invention will usually be not lower than
about 1,000 mPas, e.g., not lower than about 2,000 mPas, not lower than about 3,000
mPas, or not lower than about 3,500 mPas, but usually not higher than about 10,000
mPas, e.g., not higher than about 8,000 mPas, not higher than about 7,000 mPas, not
higher than about 6,000 mPas, or not higher than about 5,500 mPas, as measured at 25
°C 24 hours after preparing the preparation by means of a rotational ter such
as, e.g., the apparatus Rheomat R 123 of proRheo GmbH, Germany (spindle N0. 1).
The preparation of the present invention may particularly advantageously be used on
wet or moist skin (and also for (wet) shaving). In particular, the preparation may be
WO 64391
used while ing or bathing and following the cleansing of the skin/body.
Following the application of the preparation rinsing with water and drying the skin
with, e.g., a towel are all that is needed for obtaining the skin care effect of the
preparation. Parts of the preparation are left behind on the skin in a manner similar to
applying a cream onto the skin. In other words, the preparation may be used as a balm
similar to the use of a hair conditioner after cleansing the hair.
The preparation of the present invention may be provided in any container which is
le for cosmetic or dermatological compositions. For example, it may be placed
in a (plastic) bottle, e.g., a bottle that is to be stored upside down.
The examples below illustrate the preparation according to the invention. The
numerical values represent percent by weight, based on the total weight of the
preparation.
2 5
I 16.50! 23.100 29.700 9.700
.5001 .9001-.30015.300
yl alcohol 5.--000 4.---
Hydrogenated 3.0000 3.0000 3.0000 '.0000 '.0000 .0000
ycendes
Aluminumstarch 1.0000 1.0000 1.0000 1 0000 .0000 .0000
octenylsuccinate
Perfume 0.8000 0- p—l O O O O O \l O
Glycerol 5.1000 .1000 5.100.15.1
Sodiumhydroxide solution 0.1600 0.1600 0.1600 I.1600 I.1600 l.1600
45% strength
Phenoxyethanol 0.5I00 0.5000 0.'000 0.000 0 4000 0.4000
Methylisothiazolinon 0.0900 0.0900 0.0900 I 0800 .08001.0800
Acrylates/C10-30aJky1 0.100I0.10000.100I0.120I
acrylate crosspolymer
(Carbopol® 3128)
981)
Acrylates/C10-30a1ky1 0.1000 0 1000 0.1000 I.1200 .1400 I 1400
te crosspolymer
(Pemulen® TR- 1)
kl] O O
00 ad 100
Comparative Testing
Preparation A according to the ion set forth in the table below was ed
sensorily by trained test subjects (60) with a preparation B comprising emulsifiers, and
a preparation C comprising only one fatty alcohol and only one polyacrylic acid
polymer.
a I‘ a t
Mixture of microcrystalline wax (66) and 25.0000 25.0000 25.0000
medical white oil (34) (16.5) (16.5) (16.5)
(concentration of microcrystalline wax)
Myristyl l 1.00I0 1.0
Cetearyl alcohol 5.I000 5.0000
l alcohol 2.0000 2 0000
WO 64391
Hydrogenated coco-glycerlde' -il3.0000 5.0000 3
1. I!-
Glycerol 5.1000 5 .100l 5 lII- 11
Water + sodium hydroxide |.1600 III 1600 0.1050-
Phenoxyethan010.5000 0.5000 0.5EW-
isothiazolinone 0.!900 0. - \o o o o m-
Acrylates/C10-30 alkyl acrylate 0 . 1 0 0 0 0 . 1 0 0 0-
Carbomer (Carbop01® 981 0.0200 0.0200
Acrylates/C10-30 alkyl acrylate 0 _
. 1 0 0 0 ' l 0 0 0 0-1 5 0 0
crosspolymer (Pemulen® TR-l)
Water ad 100 ad 100 ad]ll-
Results:
PreparationA
_b—i MO 'I
U1 .1
The skin does not tighten 6 3 UI\O
'-h‘~< (110 LII
. \D
The skin does not tighten 6 U.) U:
The skin feels cared for 5. \I h
The higher the value, the better (scale from 0-7).
2012/070937
The results surprisingly show that preparations with only one fatty alcohol can be
spread less easily; further, preparation (C) feels sant after showering off and a
feeling of tightness remains on the dry skin (comparison preparation A versus C).
It is likewise found that the preparation with emulsifiers can be washed off less
readily, the skin feel after showering off is more unpleasant and the skin exhibits a
feeling of tightness (comparison preparation A versus B).
It is noted that the foregoing examples have been provided merely for the e of
explanation and are in no way to be construed as limiting of the present invention.
While the present invention has been described with reference to an exemplary
embodiment, it is tood that the words which have been used herein are words of
description and illustration, rather than words of limitation. s may be made,
within the purview of the appended claims, as presently stated and as amended,
without departing from the scope and spirit of the present invention in its aspects.
Although the present invention has been described herein with reference to particular
means, materials and embodiments, the present invention is not intended to be limited
to the particulars disclosed ; rather, the present invention extends to all
functionally equivalent structures, methods and uses, such as are within the scope of
the appended claims.
The entire sure of copending application entitled “FIXING OF PERFUME ON
WET SKIN”, filed concurrently herewith (Attorney : 3321-P50023), is
expressly incorporated by reference herein.
Claims (12)
- An aqueous cosmetic or dermatological preparation for application on wet or moist skin, wherein the preparation comprises (i) at least two different polyacrylic acid rs, (ii) at least two different €14.22 fatty alcohols, and at least about 13 % by weight of (iii) microcrystalline wax, based on a total weight of the preparation, wherein besides polyacrylic acid polymers (i), no further emulsifiers are present in the preparation.
- 10 The preparation of claim 1, wherein the ation comprises at least three different polyacrylic acid polymers.
- The preparation of claim 1 or claim 2, wherein the polyacrylic acid polymers (i) are selected from acrylates/C10-30 alkyl acrylate olymers and 15 carbomers.
- The preparation of any one of claims 1 to 3, wherein the polyacrylic acid polymers (i) comprise at least one polymer having emulsifying properties.
- 20 The preparation of any one of claims 1 to 4, n the polyacrylic acid polymers (i) comprise at least one polymer which at least one of es sensory properties of the preparation and increases a stability of the preparation.
- 25 The preparation of any one of claims 1 to 5, wherein the preparation comprises a total of from about 0.05 % to about 2 % by weight of (i), based on the total weight of the preparation.
- The preparation of claim 6, wherein the ation comprises a total of from 30 about 0.2 % to about 1 % by weight of (i).
- The preparation ofany one ofclaims 1 to 7, wherein the preparation comprises at least three C1442 fatty alcohols.
- The preparation of any one ofclaims 1 to 8, wherein the preparation comprises a total of fiom about 3 % to about 14 % by weight of (ii), based on the total weight ofthe preparation.
- 10. The preparation of claim 9, wherein the ation comprises a total of from about 7 % to about 9 % by weight of (ii).
- 11. The preparation of any One of claims 1 to 10, wherein (ii) comprises at least one C14 fatty alcohol (C14), at least one C13 fatty alcohol (C18) and at least one 3 fatty alcohol mixture (Cl6/C18). 15
- 12. The preparation of claim 11, wherein a weight ratio of the fatty alcohols C14, 018 and C
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011085500.9 | 2011-10-31 | ||
DE102011085500A DE102011085500A1 (en) | 2011-10-31 | 2011-10-31 | Cosmetic or dermatological preparations for application on wet skin |
DE202012000164U DE202012000164U1 (en) | 2011-10-31 | 2012-01-10 | Cosmetic or dermatological preparations for application on wet skin |
DE202012000164.7 | 2012-01-10 | ||
US13/606,536 | 2012-09-07 | ||
US13/606,536 US9610231B2 (en) | 2011-10-31 | 2012-09-07 | Cosmetic or dermatological preparation for application on wet skin |
PCT/EP2012/070937 WO2013064391A2 (en) | 2011-10-31 | 2012-10-23 | Cosmetic or dermatological preparation for application on wet skin |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ610535A NZ610535A (en) | 2015-12-24 |
NZ610535B2 true NZ610535B2 (en) | 2016-03-30 |
Family
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