U.S. patent application number 09/989745 was filed with the patent office on 2003-06-05 for renewable textured cosmetic compositions.
This patent application is currently assigned to AVON PRODUCTS, INC.. Invention is credited to Duggan, Michele C., Garrison, Mark S., Kyrou, Christos D..
Application Number | 20030103922 09/989745 |
Document ID | / |
Family ID | 25535423 |
Filed Date | 2003-06-05 |
United States Patent
Application |
20030103922 |
Kind Code |
A1 |
Garrison, Mark S. ; et
al. |
June 5, 2003 |
Renewable textured cosmetic compositions
Abstract
There is provided a cosmetic composition, preferably a cream,
which continually provides a renewable textured surface appearance
while in a container. The cosmetic composition has at least one
volatile compound, preferably a fluorocarbon, such that the
volatile compound expands resulting in expansion of the cream. The
cosmetic composition preferably has a viscosity from about 5,000
cps to about 500,000 cps.
Inventors: |
Garrison, Mark S.; (Suffern,
NY) ; Duggan, Michele C.; (Middletown, NY) ;
Kyrou, Christos D.; (Goshen, NY) |
Correspondence
Address: |
Charles N.J. Ruggiero, Esq.
Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
10th Floor
One Landmark Square
Stamford
CT
06901-2682
US
|
Assignee: |
AVON PRODUCTS, INC.
NEW YORK
NY
|
Family ID: |
25535423 |
Appl. No.: |
09/989745 |
Filed: |
November 20, 2001 |
Current U.S.
Class: |
424/70.1 |
Current CPC
Class: |
A61Q 17/04 20130101;
A61Q 19/00 20130101; A61K 8/02 20130101; A61K 8/585 20130101; A61K
2800/22 20130101; A61K 8/046 20130101; A61K 2800/244 20130101; A61K
8/315 20130101; A61K 8/891 20130101 |
Class at
Publication: |
424/70.1 |
International
Class: |
A61K 007/06 |
Claims
What is claimed is:
1. A composition having a self-renewable, textured surface
appearance when in a container, the composition comprising a
volatile compound in an amount effective to renew the textured
appearance of the composition in the container during a
pre-determined period of time after each use of the composition,
wherein the composition has viscosity from about 5,000 cps to about
500,000 cps.
2. The composition of claim 1, wherein the composition is an
emulsion.
3. The corporation of claim 1, wherein the composition is an
oil-in-water emulsion.
4. The composition of claim 1, wherein the viscosity is from about
10,000 cps to about 200,000 cps.
5. The composition of claim 1, wherein the viscosity is from about
20,000 cps to about 100,000 cps.
6. The composition of claim 1, wherein the viscosity is from about
35,000 cps to about 75,000 cps.
7. The composition of claim 1, wherein the container is a
non-aerosol container having a removably sealable cap effective to
seal the composition against escape of pressure built up in the
container during a period of about 2 hours to about 24 hours after
each use.
8. The composition of claim 5, wherein the container is a jar.
9. The composition of claim 5, wherein the container has an
adjustable inner volume.
10. The composition of claim 1, wherein the composition is selected
from the group consisting of a facial cream, a body cream, a facial
mask, and a cleansing cream.
11. The composition of claim 1, wherein the textured appearance is
a self-foaming or self-whipping characteristic to the composition
while in the container.
12. The composition of claim 1, wherein the volatile compound is at
least partially fluorinated.
13. The composition of claim 1, wherein the volatile compound is a
perfluorocarbon.
14. The composition of claim 1, wherein the volatile compound is
perfluoroalkylcycloalkane.
15. The composition of claim 1, wherein the volatile compound is
selected from the group consisting of perfluoromethylcyclohexane,
perfluoromethylcyclopentane, perfluorodimethylcyclohexane,
perfluorohexane, methyl perfluorobutyl ether, ethyl perfluorobutyl
ether, perfluorodimethylcyclopentane, and mixtures thereof.
16. The composition of claim 1, wherein the volatile compound is
perfluoromethylcyclohexane.
17. The composition of claim 1, wherein the volatile compound is a
mixture of fluorinated and perfluorinated compounds.
18. The composition of claim 1, wherein the volatile compound is
perfluorinated.
19. The composition of claim 18, wherein the volatile compound has
a vapor pressure from about 20 mbar to about 500 mbar at 25 degrees
C.
20. The composition of claim 18, wherein the volatile compound has
a vapor pressure from about 100 mbar to about 300 mbar at 25
degrees C.
21. The composition of claim 18, wherein the volatile compound has
a boiling point from about 45 degrees C. to about 110 degrees
C.
22. The composition of claim 18, wherein the volatile compound has
a boiling point from about 65 degrees C. to about 85 degrees C.
23. The composition of claim 1, wherein the volatile compound is
present in an amount from about 0.1 wt % to about 25 wt % by total
weight of the composition.
24. The composition of claim 1, wherein said volatile compound is
present in an amount from about 1 wt % to about 15 wt % by total
weight of the composition.
25. The composition of claim 1, wherein the volatile compound is
present in an amount from about 2.5 wt % to about 10 wt % by total
weight of the composition.
26. A cosmetic cream composition having an original, textured
surface appearance in a container, the composition comprising about
0.1 wt % to about 25 wt % of a perfluorocarbon compound based on
the total weight of the composition, wherein the perfluorocarbon
compound has a vapor pressure from about 100 mbar to about 300 mbar
at 25 degrees C., and a boiling point from about 45 degrees C. to
about 110 degrees C., the composition having a viscosity from about
10,000 cps to about 200,000 cps, wherein the composition is a
cosmetic cream, and wherein the original, textured appearance of
the composition is self-renewed during a pre-determined period of
time after each use of the composition.
27. The composition of claim 26, wherein the perfluorocarbon
compound is perfluoromethylcyclohexane.
28. The composition of claim 26, wherein the perfluorocarbon
compound is present in an amount from about 2.5 wt % to about 10 wt
% by total weight of the composition.
29. The composition of claim 26, wherein the container is a
non-aerosol container having a removably sealable cap effective to
seal the composition against escape of pressure built up in the
container during a period of about 2 hours to about 24 hours after
each use.
30. A method of treating skin comprising topically applying to the
skin the composition of claim 1.
31. A process of imparting a self-renewed, original textured
surface appearance to a composition after each use thereof, wherein
the composition has a viscosity from about 5,000 cps to about
500,000 cps, the process comprising: introducing into said
composition at least one volatile compound having a vapor pressure
from about 20 mbar to about 500 mbar at 25 degrees C., and a
boiling point from about 45 degrees C. to about 110 degrees C., in
an amount effective for enabling such self-renewed appearance, and
packaging said composition in a non-aerosol container having a
removably sealable cap effective to seal said composition against
escape of pressure built up in the container during a
pre-determined period of time after each use.
32. A method of imparting a self-renewed, original textured surface
appearance to a composition after each use, the composition having
at least one volatile compound with a vapor pressure from about 20
mbar to about 500 mbar at 25 degrees C. and a boiling point from
about 45 degrees C. to about 110 degrees C., in an amount effective
for enabling such self-renewed appearance, wherein the composition
is packaged in a non-aerosol container having a removably sealable
cap effective to seal the composition against escape of pressure,
comprising maintaining the composition in a capped state for a
pre-determined period of time after each use to allow the
composition to self-renew the original textured appearance.
Description
BACKGROUND OF THE INVENTION
[0001] I. Field of the Invention
[0002] The present invention relates to cosmetic compositions that
may be packaged in a non-aerosol container, such as a jar. More
particularly, the present invention relates to cosmetic creams or
emulsions having at least one volatile compound that imparts a
whipped texture to at least the upper portion of the cosmetic
composition. Still more particularly, the textured surface of the
cosmetic composition remaining in the container renews itself after
each use of the composition by the consumer. In other words, the
composition is "self-foaming" or "self-whipping" such that the
surface thereof becomes re-texturized during a pre-determined
period of time.
[0003] II. Description of the Prior Art
[0004] Foamable cosmetic compositions may take a variety of forms
including, among others, skin and hair mousses, and aerosol shave
foams. These prior art foaming products rely on gasses or
"propellants" to produce the desired foaming characteristics. They
also require special, highly pressurized packaging systems, such as
metal aerosol spray cans, and elaborate dispensing systems
involving valves, gaskets, fine mesh, etc. Furthermore, these
systems use gasses that have relatively low flashpoints that are,
thus, quite flammable and quite hazardous.
[0005] U.S. Pat. Nos. 6,210,656 and 6,033,647, assigned to L'Oreal,
describe self-foaming compositions that are post foaming
compositions (i.e., they foam after having been dispensed out of
the container). Post-foaming compositions are packaged in
pressurized aerosol containers and utilize flammable self-foaming
agents such as isopentane, isobutane, and mixtures thereof. The
flammability and volatility of these agents, and the pressure they
build up in the container, make them impractical to be packaged in
non-aerosol containers.
[0006] U.S. Pat. No. 5,500,211, assigned to Gillette, describes a
self-foaming composition that is a post-foaming shaving
composition, where the self-foaming agents are volatile
hydrocarbons having 4 to 6 carbon atoms. These self-foaming agents
are highly flammable. The flammability and volatility of these
agents, and the pressure they build up in the container, make
packaging such compositions in non-aerosol containers quite
difficult, if not impossible.
[0007] U.S. Pat. No. 6,165,456, also assigned to Gillette,
describes a self-foaming shaving gel comprising volatile
hydrocarbons which, as discussed above, are flammable and, hence,
potentially dangerous. Furthermore, such volatile hydrocarbons
require the self-foaming shaving gel to be packaged in a suitable
aerosol container.
[0008] U.S. Pat. Nos. 5,637,318; 5,643,601; 5,667,772; and
5,885,564, assigned to Lancaster, teach the use of an oxygen laden
fluorocarbon to help transport oxygen through the skin. This
approach comprises mixing the fluorocarbon of choice with oxygen in
a pressurized vessel, so that the oxygen is dissolved and "loaded"
into the fluorocarbon and, thus, the final compositions.
[0009] U.S. Pat. No. 6,113,919, assigned to Alliance
Pharmaceutical, discloses a partially fluorinated hydrocarbon
having a lipophilic portion between 4 and 18 carbon atoms to help
enhance the particle size stability of a fluorocarbon.
[0010] U.S. Pat. No. 5,741,499, assigned to L'Oreal, describes a
homogeneous solution containing specially modified fluorinated
compounds and glycols. The fluorinated compounds require at least
one functional group consisting of alcohol, thiol, or primary or
secondary amine to associate with glycols in the formula, thus
enabling a homogeneous solution. The present invention, in
contrast, uses fluorocarbons, which are substantially free of
alcohol, thiol, or amine functionality, and preferably contain
none.
[0011] U.S. Pat. No. 6,251,375, also assigned to L'Oreal, teaches
the use of volatile fluorinated compounds to accelerate the drying
time of make-up, nail care, and suncare compositions. However, this
patent fails to provide a self-foaming composition, which is able
to produce a renewable, whipped surface texture, and which can be
packaged in a non-aerosol container.
[0012] U.S. Pat. No. 6,224,851, also assigned to L'Oreal, teaches a
process for making transfer resistant make-up or sunscreen cosmetic
compositions containing particles of a pigment or filler, by
introducing at least one volatile fluorinated solvent in a
sufficient amount to act as an anti-transfer agent. However, this
patent fails to provide a self-foaming composition, which is able
to produce a renewable, whipped surface texture, and which can be
packaged in a non-aerosol container.
[0013] Also known in the art are methods to produce foamed products
that require packages that dispense compositions as a foam using
specialized dispensers. Although these containers are non-aerosol
containers, they require that the product passes through a fine
mesh as it is pump dispensed to give a foamed appearance. These
mesh-foam packages work well with only very thin products, i.e.,
having viscosities of less than about 1000 centipoise.
[0014] In short, the prior art fails to teach the use of volatile
fluorocarbons having suitable volatility (vapor pressure and/or
boiling point) parameters as self-foaming agents, or their use to
create a renewable, whipped surface texture to a cosmetic product
packaged in a conventional jar. There is a need in the art for such
a whipped/foamed product which can be packaged in a non-aerosol
container, saving the cost and filling requirements of using
pressurized aerosol cans/packaging, and which uses a safe, non
flammable ingredient to produce the foamed/whipped texture.
SUMMARY OF THE INVENTION
[0015] It is an object of the present invention to provide a
container having a cosmetic cream with a volatile compound in which
the composition self-attains a renewable, textured surface while in
the container.
[0016] It is another object of the present invention to provide
self-foaming compositions, which can be packaged and sold
commercially in a container, such as a jar, so that after each use,
the aesthetic appeal of the whipped surface texture can be
self-renewed after the jar is capped for a pre-determined period of
time.
[0017] It is still another object of the present invention to
achieve the above desired effect without the use of a flammable
foaming agent, such as a hydrocarbon gas.
[0018] It is a further object of the present invention to provide a
cosmetic cream in which the self-foaming agent additionally imparts
a cooling sensation to the skin when the cream is applied.
[0019] It is still a further object of the present invention to
provide such a cosmetic cream in which the self-foaming action
occurs at a sufficient rate that the consumer has an indication,
e.g. see and hear the process occur to some degree, when they
examine or apply the cream.
[0020] To accomplish the foregoing objects and advantages, the
present invention, in brief summary, is a cosmetic composition that
has a volatile compound, such that, while in its container, the
volatile compound, and thus the composition, expands resulting in
the composition having a renewable textured surface. The
composition preferably is an emulsion. Also, the composition has a
viscosity from about 5,000 cps to about 500,000 cps.
DETAILED DESCRIPTION OF THE INVENTION
[0021] The present invention is a cosmetic composition having a
textured surface appearance that is renewable. The composition is
most preferably a cream. The cream is preferably contained in a
non-aerosol container, such as, for example, a bottle, jar or
non-pressurized metal container. The upper portion of the cream has
a textured appearance in the container. This textured appearance is
analogous to the look of foam/bubbles, and/or
nooks/crannies/craters. The appearance may also be described as
"foamed" or "whipped". Each time that a portion of the cream is
removed from the container or the surface of the cream is disturbed
or altered by, for example, a consumer's fingers or some other
manual applicator, the original textured appearance of the
composition in the container reappears or is renewed within a
relatively short period of time, sometimes within as little as
about 2 hours, typically from about 2 hours to about 24 hours, and
certainly after weekly use.
[0022] In other words, when a jar of cosmetic cream is opened for
the first time, it has a nicely finished, aesthetically appealing,
foamy or whipped appearance. However, after the very first use, and
every time thereafter that a consumer dips her fingers into the
jar, the surface of the cream remains with troughs, furrows and
other concavities. The present invention provides for a cosmetic
composition that self-levels and self-whips/self-foams during a
pre-determined period of time, such that each subsequent time that
the jar is opened, the surface appearance of the composition has
renewed itself and looks like it did the very first time the jar
was opened. For a product that is used daily, and renews itself
within that timeframe, this effect is novel and exciting, since the
surface texture will appear newly whipped each day the jar is
opened.
[0023] The cosmetic composition of the present invention has a
self-foaming agent, preferably a volatile compound. The
self-foaming agent expands due to its tendency to volatilize and,
thus, causes the composition to also expand, thereby imparting a
re-textured surface appearance to the composition. This unique
attribute is made possible by the addition of a volatile compound
effective to cause the cosmetic composition to renew its original
textured surface appearance. In other words, the volatile compound
builds up sufficient pressure to re-foam/re-whip the surface of the
composition, but not so much pressure that it needs to be contained
in a pressurized metal container.
[0024] The composition of the present invention has a viscosity
effective to permit expansion of the self-foaming agent. Prevention
of this expansion would prevent the formation of the renewable
textured surface when in the container, such as a jar. The
viscosity of the composition should be adequate enough to maintain
the whipped surface texture once it is formed, yet also thick
enough so that it can be packaged in a jar without running.
Preferably, the viscosity of the composition is from about 5,000
cps to about 500,000 cps, more preferably from about 10,000 cps to
about 200,000 cps, even more preferably from about 20,000 cps to
about 100,000 cps, and most preferably from about 35,000 cps to
about 75,000 cps.
[0025] Preferably, the volatile compound of the present invention
also has a suitable latent heat of evaporation such that it
produces a cooling sensation on the surface of skin when the
composition is applied. Depending on the self-foaming agent chosen,
this cooling sensation can be accompanied by a bubbly or fizzy
sound or sensation.
[0026] Volatile compounds that are at least partially fluorinated
exhibit the best chemical characteristics to facilitate the
self-foaming behavior of the present invention. The greater the
number of carbon-fluorine bonds in the molecule, the greater this
desirable behavior. For foaming efficiency (i.e. most foaming for
least amount of foaming agent needed), the best compounds for this
purpose consist entirely of carbon and fluorine atoms, and thus
contain only carbon-carbon and carbon-fluorine bonds. Additionally,
the absence of additional functional groups minimizes any possible
affinity for other components in the cosmetic composition, which
could decrease the self-foaming efficiency.
[0027] The preferred volatile compound for use in the present
invention is a fluorocarbon. More preferably, the volatile compound
is a perfluorocarbon, and even more preferably, a
perfluoroalkylcycloalkane. Examples of perfluoroalkylcycloalkane
include perfluoromethyl-cyclopentan- e and
perfluouromethylcyclohexane. The volatile compound is most
preferably perfluoromethylcyclohexane.
[0028] Perfluoromethylcyclohexane is an organic compound that has
the formula: 1
[0029] This perfluoromethylcyclohexane is commercially available
from Cosmetic Innovations Technologies S.a.r.l., and currently
distributed in the US by R.I.T.A. Corporation. under the trade name
Flutec PP2, or Flutec PC2.
[0030] Also preferred is the compound perfluoromethyl cyclopentane,
available from the same company as above under the trade name
Flutec PC1C. It has the following formula: 2
[0031] Also suitable for use as a volatile compound in the present
invention are perfluorohexane and perfluorodimethylcyclohexane,
available from the same company as above, under the tradenames
Flutec PC1 and Flutec PC3, respectively.
Perfluorodimethylcyclopentane (molecular weight of about 350) is
also expected to be suitable in the present invention.
[0032] Also suitable for use as a volatile compound in the present
invention are partially fluorinated liquids available from 3M
Company under the tradenames Novec HFE 7200 (ethyl perfluorobutyl
ether) and Novec HFE 7100 (methyl perfluorobutyl ether).
[0033] The perfluorocarbon compound of the present invention
preferably has a boiling point from about 45 degrees C. to about
110 degrees C., and more preferably from about 65 degrees C. to
about 85 degrees C. Related to the boiling point is the vapor
pressure of the compound at room temperature (25 degrees C.). The
vapor pressure at room temperature is a measure of the volatility
of the compound. The more viscous the composition, the higher the
vapor pressure required to produce a whipped texture in the surface
of the composition. Preferably, the vapor pressure at room
temperature should be from about 20 mbar to about 500 mbar, more
preferably from about 100 mbar to about 300 mbar. These boiling
point and vapor pressure parameters apply preferably to any
volatile compound used in the present invention.
[0034] The volatile compound of the present invention is present in
the composition in an amount from about 0.1% percentage by weight
(wt %) to about 25 wt % by total weight of the composition. More
preferably, the amount of volatile compound in a present
composition is from about 1% to about 15%, and most preferably from
about 2.5 wt % to about 10 wt %, by total weight of the
composition.
[0035] The cosmetic composition of the present invention is
preferably an emulsion, more preferably an oil-in-water emulsion.
Most preferably, the composition is an oil-in-water cream. The
emulsion may also be water-in-oil, water-in-silicone or a multiple
emulsion. Ideally, the self-foaming agent should not totally
dissolve into any phase of the emulsion, but rather when mixed into
the emulsion should be present somewhat as tiny droplets of its own
third phase.
[0036] Suitable cosmetic creams include, but are not limited to, a
facial cream, a body cream, a facial mask, a cleansing cream, a
hair conditioning crme, or a shaving cream.
[0037] The cosmetic composition of the present invention can
include other suitable components, such as one or more
foam-modifying agents. For example, cyclomethicones, which are
miscible with fluorinated liquids, can be incorporated into the
composition in order to modify the foaming characteristics. Another
class of compounds that can be used to modify the foaming
characteristics are higher molecular weight compounds that also
contain fluorine. Accordingly, silicones that are partially
fluorinated, hydrocarbons that are partially fluorinated, esters
that are partially fluorinated, in fact any class of compound that
is partially fluorinated, can help to dissolve the self-foaming
liquid into one of the phases in the emulsion, thus influencing its
foaming characteristics by decreasing the foaming behavior at room
temperature. Substances such as the Fomblins, a class of
perfluorinated ether polymers, are also suitable for this purpose.
Also, the higher molecular weight, nonvolatile members of the
Flutec series can also be used as modifiers of the foaming
characteristics of the composition.
[0038] The foam-modifying agent is preferably present in an amount
from about 0.1 wt % to about 60 wt % based on the total weight of
the composition. More preferably, the thickening agent is present
in an amount from about 2 wt % to about 25 wt % based on the total
weight of the composition.
[0039] The cosmetic compositions of the present invention may also
have one or more thickening agents. The presence of, for example, a
polymeric thickening agent, helps to stabilize the whipped
appearance of the composition, and stabilize the uniform dispersion
of the droplets of foaming agents in the composition. Also, because
the density of the self-foaming agent is substantially greater than
that of the composition, it has a tendency to sink to the bottom of
low viscosity systems, which can have a detrimental effect on the
foaming effect. Thus, the use of polymeric thickening agents and/or
thickening agents capable of producing Theological "yield value" is
especially useful. Useful polymeric thickening agents include, but
are not limited to, polyacrylic acid polymers known as carbomers,
polyacrylamide polymers such as seppigel, and other polymers based
on acrylamide or acrylic acid. Also useful are cellulose and starch
derivatived thickeners, and other polysaccharide derived
thickeners. Examples of thickeners would be xanthan gum,
carageenan, hydroxyethyl cellulose, gellan gum, hydroxypropyl
methylcellulose, chitosan, hyaluronic acid, and modified starches
such as those sold under the trade name Solnace. Also useful are
inorganic thickening agents. Examples of these are magnesium
aluminum silicate, sodium aluminum silicate, and fumed silica.
[0040] The thickening agent is preferably present in an amount from
about 0.01 wt % to about 5 wt % based on the total weight of the
composition. More preferably, the thickening agent is present in an
amount from about 0.5 wt % to about 2.0 wt % based on the total
weight of the composition.
[0041] Also useful in the formulation are nonionic emulsifying
agents. These add stability to the composition and contribute
towards a uniform white appearance to the composition, which is
perceived as attractive when combined with the self-whipping
texture.
[0042] The cosmetic composition may also have one or more
emollients, humectants, emulsifiers, preservatives, chelating
agents, sunscreen agents, water proofing agents vitamins, botanical
extracts, sunscreens, insect repellents, fragrances, active
ingredients (such as, for example, anti-acne ingredients or skin
whitening ingredients), solubilizing agents, exfoliating agents, or
any combination thereof.
[0043] Useful in the manufacture of self-foaming emulsions is a
homogenizer or other high shear device. These aid in the uniform
dispersion of the self-foaming agent, which ideally is incorporated
rapidly into the composition, and ideally processed in a vessel
with a minimum of headspace. Preferably, when the composition is an
emulsion, the emulsion is prepared first and the self-foaming agent
is then added to the emulsion. This would also assist in
distributing the self-foaming agent throughout the composition.
[0044] The preferred embodiments of the present invention are
suitable to be packaged in any number of typical cosmetic
containers such as jars with caps as are commonly used in the
industry, such that the cap effectively seals the composition
against any escape of pressure built up in the container. The
embodiments that use the most volatile self-foaming agents are
preferably packaged in a container having a cap that maintains a
very airtight and robust seal, such that the foaming composition
does not leak out under high temperature conditions.
[0045] As the cosmetic composition is used by a consumer, the
headspace in the container will gradually increase over time as the
amount of the cosmetic composition in the package decreases. To
some extent, it will be refilled with freshly re-foamed composition
but, after numerous openings, depending on the specific composition
viscosity, the foaming agent used and the container, the foaming
response will not disappear, but may become less vigorous. Thus, an
ideal container for this type of cream would be one where the
bottom is engineered to have an adjustable inner volume, such as,
for example, to swivel and "dial up", as in some current containers
used for stick or deodorant products. This would help minimize the
headspace, so that the base can be elevated slightly after each
use, to help minimize the composition going "flat". Such a
container is not necessary but would be desirable, particularly in
a jar-type configuration.
[0046] The compositions of the present invention have significant
aesthetic benefits. In particular, each composition has a
self-renewing surface appearance that is similar to whipped cream.
For example, a portion of the cream can be removed from the
container, yet within a brief period of time the original textured
or crater-like surface of the cream reappears in the container.
This continual, renewable feature, as well as the textured
appearance itself, is believed aesthetically pleasing to a
consumer.
[0047] Moreover, when the container is opened, some of the foam
bubbles pop, creating a bubbling or fizzy sound. This effect is
aesthetically different and interesting in a cream, and it is
believed that it too will be viewed as positive by the
consumer.
[0048] The following are examples of the compositions of the
present invention:
EXAMPLE I
[0049] Compositions 1 and 2 were identically formulated, except
Composition 1 (the invention) contained 2.5% Flutec PC2 and
Composition 2 contained 2.5% ethanol. Flutec PC2 has a boiling
point (BP) of 76 degrees C. and ethanol has a boiling point of 78.5
degrees C.
[0050] The boiling points are similar, yet the behavior of these
two compositions is totally diverse. Composition 1 (the invention)
gives a substantial foaming effect, creating a very aesthetic
whipped cream-like appearance. Composition 2 produces no foaming.
This is because the ethanol molecules, although being of a similar
BP to the Flutec PC2, hydrogen-bond to the aqueous phase of the
composition, and dissolve completely in the composition. The OH
group on ethanol can also hydrogen-bond to other polar groups of
other ingredients in the composition. Also, the remainder of the
ethanol molecule is hydrocarbon, and so can bond with other organic
components in the system. Since the ethanol is totally solvated in
this system, it behaves differently from the volatile compound of
the present invention. Thus, the ethanol does not produce a foamed
or whipped appearance on the surface of the composition.
1 Composition 1 (Invention) Composition 2 Ethanol 0 2.5
Perfluoromethylcyclohexane 2.5 0 (Flutec PC2) Xanthan Gum 0.5 0.5
Disodium EDTA 0.2 0.2 Dimethicone 2.0 2.0 Hyaluronic acid 0.01 0.01
Stearic acid 1.25 1.25 Magnesium aluminum silicate 0.5 0.5 Cetearyl
alcohol 6.0 6.0 Cetyl ricinoleate 3.0 3.0 C12-15 alkyl benzoate 2.0
2.0 Octylmethoxycinnamate 7.5 7.5 Benzophenone-3 3.5 3.5
Butylmethoxydibenzoylmethane 2.0 2.0 Choleth-24 0.5 0.5 IR-3535 5.0
5.0 Zeolite 0.25 0.25 Propylene glycol 2.0 2.0 Pentylene glycol 2.0
2.0 Benzyl alcohol 1.0 1.0 Polysorbate 60 0.5 0.5 Steareth-20 0.25
0.25 Peg 100 stearate 0.5 0.5 Tocopheryl acetate 0.1 0.1 Fragrance
0.2 0.2 Methyl paraben 0.35 0.35 Water qs to 100 qs to 100
EXAMPLE II
[0051] Cosmetic Compositions 3 and 4 were identically formulated,
except Composition 3 (the invention) contained 2.5% Flutec PC2 and
Composition 4 contained 2.5% perfluorodecalin (Flutec PP5). Flutec
PC2 has a boiling point of 76 degrees C. and perfluorodecalin has a
boiling point of 142 degrees C.
[0052] Even though both ingredients are perfluorocarbons, it was
determined that only Composition 3 (the invention), containing 2.5%
perfluoromethylcyclohexane, will produce an attractive whipped
appearance, whereas Composition 4, containing perfluorodecalin,
will not. The chemical nature of these two compounds being equal,
and the cream bases being the same, the whipping/foaming is here
influenced by the relative volatility of these two compounds, as
illustrated by their relative boiling points.
2 Composition 3 (Invention) Composition 4
Perfluoromethylcyclohexane 2.5 0 (Flutec PC2) Perfluorodecalin
(Flutec PP5) 0 2.5 Carbopol 934 0.7 0.7 Disodium EDTA 0.2 0.2
Glycerin 3.0 3.0 Cyclomethicone 10.0 10.0 Octyl methoxy cinnamate
7.5 7.5 Benzophenone-3 3.0 3.0 Butylmethoxydibenzoylmethane 2.0 2.0
Sodium hydroxide solution 0.5 0.5 Botanical extracts 2.0 2.0
Fragrance 0.3 0.3 Methyl paraben 0.3 0.3 Benzyl alcohol 1.0 1.0
PEG-100 stearate 1.25 1.25 Laureth-4 0.50 0.50 Cetyl alcohol 0.1
0.1 Water qs to 100 qs to 100
[0053] Having thus described the present invention with particular
referenced to preferred embodiments thereof, it will be apparent
that various changes and modifications may be made therein without
departing from the spirit and scope of the present invention as
defined in the appended claims.
* * * * *