U.S. patent application number 14/097596 was filed with the patent office on 2014-04-03 for cosmetic particles that transform from hard to soft particles comprising hydrogenated long-chain triglyceride oils.
This patent application is currently assigned to INTERNATIONAL FLORA TECHNOLOGIES, LTD.. The applicant listed for this patent is INTERNATIONAL FLORA TECHNOLOGIES, LTD.. Invention is credited to James H. Brown, James S. Brown, Kelley Dwyer, Robert Kleiman.
Application Number | 20140094515 14/097596 |
Document ID | / |
Family ID | 41431877 |
Filed Date | 2014-04-03 |
United States Patent
Application |
20140094515 |
Kind Code |
A1 |
Kleiman; Robert ; et
al. |
April 3, 2014 |
COSMETIC PARTICLES THAT TRANSFORM FROM HARD TO SOFT PARTICLES
COMPRISING HYDROGENATED LONG-CHAIN TRIGLYCERIDE OILS
Abstract
Cosmetic particle compositions are provided which are adapted to
form hard cosmetic particles that transform to soft cosmetic
particles after their incorporation into topical formulations,
particularly surfactant-based topical formulations. The composition
includes one or more partially or fully hydrogenated triglyceride
oils, at least 50% of which have at least 15% by weight fatty acid
moieties with carbon chain lengths of C.sub.18 or higher. Additives
may be disposed in or on the hard cosmetic particles and delivered
when the cosmetic particles are broken proximate a target such as
the skin, hair or nails of a mammalian subject or another target.
The transformable hard cosmetic particles permit the storage and
shipment of intact cosmetic particles yet transform in situ to
achieve the benefits of soft cosmetic particles.
Inventors: |
Kleiman; Robert; (Sun Lakes,
AZ) ; Brown; James H.; (Scottsdale, AZ) ;
Dwyer; Kelley; (Mesa, AZ) ; Brown; James S.;
(Gilbert, AZ) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
INTERNATIONAL FLORA TECHNOLOGIES, LTD. |
Chandler |
AZ |
US |
|
|
Assignee: |
INTERNATIONAL FLORA TECHNOLOGIES,
LTD.
Chandler
AZ
|
Family ID: |
41431877 |
Appl. No.: |
14/097596 |
Filed: |
December 5, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
12488205 |
Jun 19, 2009 |
8613956 |
|
|
14097596 |
|
|
|
|
61074872 |
Jun 23, 2008 |
|
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|
Current U.S.
Class: |
514/547 |
Current CPC
Class: |
A61K 8/375 20130101;
A61Q 19/00 20130101; A61K 8/044 20130101; A61K 8/922 20130101 |
Class at
Publication: |
514/547 |
International
Class: |
A61K 8/92 20060101
A61K008/92; A61Q 19/00 20060101 A61Q019/00 |
Claims
1. A cosmetic particle composition comprising: one or more at least
partially hydrogenated triglyceride oils at least 50% of which have
at least 15% by weight fatty acid moieties with carbon chain
lengths greater than C.sub.18, wherein: said cosmetic particle
composition is adapted to form hard cosmetic particles that
transform into soft cosmetic particles upon incorporation in a
topical formulation.
2. The cosmetic particle composition of claim 1, wherein the one or
more at least partially hydrogenated triglyceride oils are present
in an amount between about 70% to about 100% by weight of the
cosmetic particle composition.
3. The cosmetic particle composition of claim 2, further comprising
at least one additive in an amount no greater than about 30% by
weight of the cosmetic particle composition.
4. The cosmetic particle composition of claim 3, wherein the one or
more at least partially hydrogenated triglyceride oils are present
in an amount of about 80% by weight and the at least one additive
is present in an amount of about 20% by weight of the cosmetic
particle composition.
5. The cosmetic particle composition of claim 1, wherein the one or
more at least partially hydrogenated triglyceride oils are selected
from the group consisting of at least partially hydrogenated
triglyceride seed oils from Limnanthes alba (meadowfoam), Camelina
sativa (camelina), Crambe abyssinica (crambe), Tropaeolum species,
High erucic acid rapeseed (HEAR), eruca species, lunaria species
and Cruciferae, and combinations thereof.
6. The cosmetic particle composition of claim 5, wherein the one or
more at least partially hydrogenated triglyceride oils comprise
fully hydrogenated Camelina sativa triglyceride seed oil.
7. The cosmetic particle composition of claim 6, further comprising
Copernicia cerifera (carnauba) wax and hydrogenated jojoba oil.
8. The cosmetic particle composition of claim 7, wherein the fully
hydrogenated Camelina sativa triglyceride seed oil comprises about
98% by weight of the cosmetic particle composition, about 1% by
weight of the Copernicia cerifera (carnauba) wax and about 1% by
weight of the hydrogenated jojoba oil.
9. The cosmetic particle composition of claim 1, wherein the
topical formulation further comprises a surfactant.
10. A cosmetic particle composition comprising: a hard cosmetic
particle comprised of one or more at least partially hydrogenated
triglyceride oils at least 50% of which have at least 15% by weight
fatty acid moieties with carbon chain lengths greater than
C.sub.18; and at least one additive disposed in or on the hard
cosmetic particle, wherein: the hard cosmetic particle transforms
to a soft cosmetic particle upon incorporation into a topical
formulation.
11. The cosmetic particle composition of claim 10, wherein the one
or more at least partially hydrogenated triglyceride oils are
present in an amount between about 70% to about 100% by weight of
the cosmetic particle composition.
12. The cosmetic particle composition of claim 11, further
comprising at least one additive in an amount no greater than about
30% by weight of the cosmetic particle composition.
13. The cosmetic particle composition of claim 12, wherein the one
or more at least partially hydrogenated triglyceride oils are
present in an amount of about 80% by weight and the at least one
additive is present in an amount of about 20% by weight of the
cosmetic particle composition.
14. The cosmetic particle composition of claim 10, wherein the one
or more at least partially hydrogenated triglyceride oils are
selected from the group consisting of at least partially
hydrogenated triglyceride seed oils from Limnanthes alba
(meadowfoam), Camelina sativa (camelina), Crambe abyssinica
(crambe), Tropaeolum species, High erucic acid rapeseed (HEAR),
eruca species, lunaria species and Cruciferae, and combinations
thereof.
15. The cosmetic particle composition of claim 14, wherein the one
or more at least partially hydrogenated triglyceride oils comprise
fully hydrogenated Camelina sativa triglyceride seed oil.
16. The cosmetic particle composition of claim 15, further
comprising Copernicia cerifera (carnauba) wax and jojoba
esters.
17. The cosmetic particle composition of claim 16, wherein the
fully hydrogenated Camelina sativa triglyceride seed oil comprises
about 98% by weight of the cosmetic particle composition.
18. A cosmetic composition comprising: a plurality of hard cosmetic
particles comprised of one or more at least partially hydrogenated
triglyceride oils at least 50% of which have at least 15% by weight
fatty acid moieties with carbon chain lengths of greater than
C.sub.18; and a topical formulation, wherein: said hard cosmetic
particles are adapted to transform into soft cosmetic particles
when introduced into the topical formulation to deliver emolliency
to a target.
19. The cosmetic composition of claim 18, further comprising at
least one additive disposed in or on at least one of the plurality
of hard cosmetic particles.
20. The cosmetic composition of claim 18, wherein the one or more
at least partially hydrogenated triglyceride oils comprise fully
hydrogenated Camelina seed oil.
Description
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application is a divisional application of U.S.
Nonprovisional patent application Ser. No. 12/488,205, filed on
Jun. 19, 2009, which claims the benefit of U.S. Provisional Patent
Application Ser. No. 61/074,872, filed Jun. 23, 2008, and
incorporates the disclosure of each application in its entirety by
reference. To the extent that the present disclosure conflicts with
any referenced application, however, the present disclosure is to
be given priority.
FIELD OF THE INVENTION
[0002] The present invention generally relates to cosmetic
particles, and more particularly relates to cosmetic particles
adapted to form hard cosmetic particles of hydrogenated long-chain
triglyceride oils that transform to soft cosmetic particles when
formulated into topical formulations.
BACKGROUND OF THE INVENTION
[0003] Cosmetic particles are known in the art. Cosmetic particles
can entrap a wide variety of additives including active agents for
cosmetic and dermatological use to allow for better storage and/or
controlled release of additives. Cosmetic particles can be
formulated to be soft to add a visual and tactile appeal to the
topical formulation in which they are incorporated, to deliver
additives, and to deliver emolliency. Soft cosmetic particles may
be rubbed into the skin leaving substantially no discernible debris
and delivering additives to a user's skin, hair and/or nails.
Cosmetic particles may also be formulated to be hard for visual
appeal and to provide a mechanical exfoliating effect. Cosmetic
particles typically maintain their structural integrity (i.e.,
generally do not substantially deform) when incorporated into a
topical formulation.
[0004] The hardness of cosmetic particles is typically determined
using a tactile scale that subjectively measures the amount of
pressure applied between fingertips needed to deform the cosmetic
particle. The hardness can range from very soft, where almost no
pressure is needed to deform the cosmetic particle, to very hard
where under normal pressure the beads will generally not deform but
maintain their structural integrity and are rough on the skin, thus
providing a mechanical exfoliating effect. Hard cosmetic particles
typically deform only with considerable pressure.
[0005] Unfortunately, as almost no pressure is needed to deform
soft cosmetic particles, cosmetic and dermatological agents may
undesirably be released from soft cosmetic particles prior to their
topical use. In addition, the storage and shipment of soft cosmetic
particles may be problematic as they can lose their structural
integrity and fuse into a single mass, because of, for example, the
weight of overlying beads. However, while hard cosmetic particles
generally maintain their structural integrity throughout storage
and shipping and when incorporated into topical formulations, such
hard cosmetic particle formulations typically do not deliver
additives and provide the feel and emolliency features offered by
soft cosmetic particles.
[0006] Accordingly, it is desirable to provide cosmetic particle
compositions that advantageously permit hard cosmetic particles to
transform to soft cosmetic particles after storage and shipment and
after their incorporation into a topical formulation. It is also
desirable that the transformed cosmetic particles can provide a
tactile sensation and deliver emolliency to the skin, hair and
nails of a mammalian subject or to another target. Furthermore,
other desirable features and characteristics of the present
invention will become apparent from the subsequent detailed
description of the invention and the appended claims and this
background of the invention.
BRIEF SUMMARY OF THE INVENTION
[0007] A cosmetic particle composition is provided that comprises
one or more at least partially hydrogenated triglyceride oils, at
least 50% of which have at least 15% by weight fatty acid moieties
with carbon chain lengths greater than C.sub.18, wherein said
cosmetic particle composition may be adapted to form hard cosmetic
particles that transform into soft cosmetic particles upon
incorporation in a topical formulation. At least one additive may
be entrapped, entrained, suspended or otherwise disposed within or
on the hard cosmetic particle.
[0008] The cosmetic particle composition may comprise essentially
100% fully hydrogenated Camelina sativa seed oil that is formed
into the hard cosmetic particles and transforms into soft cosmetic
particles after introduction into a topical formulation. The
transformed cosmetic particles may be adapted to deliver emolliency
to the skin, hair, and/or nails of a mammalian subject or to
another target.
DETAILED DESCRIPTION OF THE INVENTION
[0009] The following detailed description of the invention is
merely exemplary in nature and is not intended to limit the
invention or the application and uses of the invention.
Furthermore, there is no intention to be bound by any theory
presented in the preceding background of the invention or the
following detailed description of exemplary embodiments of the
present invention.
[0010] Cosmetic particle compositions, in accordance with various
exemplary embodiments, comprise one or more at least partially
hydrogenated triglyceride oils, at least 50% of which have at least
15% by weight fatty acid moieties with carbon chain lengths greater
than C.sub.18. These cosmetic particle compositions may be adapted
to form hard cosmetic particles that transform into soft cosmetic
particles upon incorporation in a topical formulation. The cosmetic
particle compositions may further comprise at least one additive
entrapped, entrained, suspended or otherwise disposed within or on
the hard cosmetic particles.
[0011] As used herein, "hard" cosmetic particles generally will not
deform until more than normal pressure is applied and "soft"
cosmetic particles will generally deform with less than normal
pressure, as determined by a tactile scale that subjectively
measures the amount of pressure applied between fingertips needed
to deform the cosmetic particle. As used herein, "normal pressure"
is that pressure typically applied without the exertion of
considerable pressure and without the use of tools. The transformed
cosmetic particles may be visibly intact but tactilely soft in the
topical formulation.
[0012] The cosmetic particles may be substantially solid at room
temperature, and may be provided in various shapes and sizes (but
particularly in the form of spheres, microspheres or beads). As
used herein, the term "particle" and "particles" refers to spheres,
microspheres, beads, and/or the like, but also refers to any
small-scale shape (e.g., a pellet, a toroid, an amorphous shape,
etc.), even if not substantially spherical. In a representative
exemplary embodiment, the cosmetic particles may comprise beads of
a visible diameter on the order of about 50 microns to about 5,000
microns, and may be colored so as to be substantially visible in
the topical formulation. These cosmetic particles, according to
representative embodiments of the present invention, may be
produced from partially hydrogenated and/or fully hydrogenated
triglyceride oils derived from the seeds of various plant sources.
Non-limiting examples of suitable triglyceride oils that have at
least 15% by weight fatty acid moieties with carbon chain lengths
greater than C.sub.18 include those derived from seeds of
Limnanthes alba (meadowfoam), Camelina sativa (camelina), Crambe
abyssinica (crambe), Tropaeolum species, High erucic acid rapeseed
(HEAR), eruca species, lunaria species and most Cruciferae. If
present, the other at least partially hydrogenated triglyceride
oils in the cosmetic particle composition (i.e. those not having at
least 15% by weight fatty acid moieties with carbon chain lengths
greater than C.sub.18) include canola oil, macadamia oil, olive
oil, safflower oil, soybean oil, sunflower oil, and many
others.
[0013] The triglyceride oils themselves are good emollients.
Emollients are usually defined as any material that softens or
smoothes the skin and which tends to reduce roughness, dryness,
cracking, and irritation. In general, smoothing is believed to be
effected by the penetration of the emollient into the surface
layers of tissue (e.g., the stratum corneum and upper layers of the
dermis, etc.), by rubbing and massaging action upon
penetration.
[0014] The triglyceride oils may be partially hydrogenated to an
iodine value of about ten or less or fully hydrogenated to an
iodine value of less than one. Hydrogenation may be performed by
any known methods. In a representative embodiment, all triglyceride
oils that would be employed may be fully hydrogenated. The
triglyceride oils form substantially hard cosmetic particles, with
a substantially spherical shape. The cosmetic particles may be
comprised of as much as 100% of the one or more at least partially
hydrogenated triglyceride oils. The cosmetic particles produced may
be hard, smooth, and generally not susceptible to deformation until
more than normal pressure is applied.
[0015] In a representative embodiment, the triglyceride oil adapted
to form the hard cosmetic particles in accordance with an
embodiment of the invention comprises substantially fully
hydrogenated Camelina seed oil. Camelina seed oil has at least 17%
by weight of its fatty acid moieties greater than 18 carbons in
length. Camelina seed oil is generally derived from Camelina
sativa. Camelina seed oil is relatively inexpensive as compared to
many other seed oils and thus the cosmetic particles formed
therewith are relatively inexpensive natural products.
[0016] In another representative and exemplary embodiment, the
cosmetic particle composition further comprises at least one
additive entrapped, entrained, suspended or otherwise disposed in
or on the hard cosmetic particle. The at least one additive may be
delivered via any cosmetic particle contemplated herein. Some
additives may also be active agents. For example only, a 2% pigment
(additive) may be a colorant for the cosmetic particles but 20%
pigment may comprise an active agent because pigment may be left
behind to change the appearance of the skin.
[0017] Non-limiting examples of additives include: alpha- and
beta-hydroxy acids, amino acids, antibiotics, anti-fungals,
antimicrobial agents, anti-perspirants, botanical extracts,
colorants, cooling agents, cosmetically active ingredients,
deodorants, depilatories, dermatologically active agents,
detergents, dyes, emollients, essential oils, flavors, fragrance
fixatives, fragrances, fruit and/or vegetable extracts and/or
juices, glitters, hair relaxing agents, hair perming agents,
humectants, hyaluronic acid, insect repellants, medicaments,
natural emollients, nutritional supplements, peptide combinations,
peptides, perfume, pharmaceutical preparations, pigments,
polymerizing agents, polymers, preservatives, probiotics,
provitamins, proteins, skin protectants, skin whiteners, slip
agents (Teflon.RTM., talc, etc.), soaps, styptics, sunless tanners,
sunscreens, synthetic emollients, UV Blockers, vitamins, and
warming agents.
[0018] The cosmetic particle composition may further comprise other
additives including, but not limited to, tocopherols, colorants,
and other oils from non-hydrogenated to fully hydrogenated oils, as
well as preservatives and other cosmetic or dermatological
ingredients. The non-hydrogenated oils may be added to control the
starting and final texture of the cosmetic particle.
[0019] For example, in a representative and exemplary embodiment,
the hydrogenated Camelina seed oil may be combined with Copernicia
cerifera (carnauba) wax and Simmondsia chinensis seed oil (jojoba
oil). Jojoba oil is composed almost exclusively of wax esters, with
little or no triglycerides present. In a preferred embodiment, the
cosmetic particle composition comprises about 98% by weight of
substantially fully hydrogenated Camelina seed oil, about 1% by
weight Copernicia cerifera (carnauba) wax and about 1% by weight
Simmondsia chinensis seed oil.
[0020] In general, the at least one additive may be entrapped,
entrained, suspended or otherwise disposed by known methods into or
on the hard cosmetic particles comprising the one or more at least
partially hydrogenated triglyceride oils at least 50% of which have
at least 15% by weight fatty acid moieties with carbon chain
lengths greater than C.sub.18. The cosmetic particle composition
generally comprises between about 50% to about 100% by weight at
least partially hydrogenated triglyceride oil(s), representatively
not less than about 70% by weight, at least 50% of which have at
least 15% by weight fatty acid moieties with carbon chain lengths
greater than C.sub.18 and about 0% to about 30% by weight
additive(s). The preferred exemplary composition comprises about
80% by weight triglyceride oil(s) and about 20% by weight
additive(s).
[0021] The cosmetic particle composition may generally be prepared
as follows: Triglyceride oil(s) may be first hydrogenated by known
methods to at most an iodine value of about 25% that of the
original triglyceride oil or representatively to an iodine value of
less than 1. The solid hydrogenated triglyceride oil may be mixed
with the at least one additive. The triglyceride oil (and the at
least one additive, if present) may be heated to its melting
temperature (80 degrees Celsius is sufficient in most cases) to
liquefy the oil. The liquefied oil (with the at least one additive,
if present) may then be cooled and formed by known methods into
hard cosmetic particles such as beads, spheres, microspheres or the
like as described, for example, in U.S. Pat. No. 496,044, issued 25
Apr. 1893 (now expired) and U.S. Pat. No. 2,714,224, issued Aug. 2,
1955 (now expired).
[0022] In an exemplary embodiment, a cosmetic particle composition
comprised of 100% Camelina seed oil may be prepared. In this case,
the Camelina seed oil may be substantially fully hydrogenated and
heated to its melting temperature of about 50 degrees Celsius to
about 60 degrees Celsius to liquefy the oil. The liquefied material
may then be cooled and formed by known methods into hard cosmetic
particles comprised of 100% hydrogenated Camelina seed oil.
[0023] In yet another exemplary embodiment, a cosmetic particle
composition comprised of about 80% by weight Camelina seed oil and
20% by weight additive may be prepared. The Camelina seed oil may
be first hydrogenated and then melted with the additive. The
liquefied mixture may then be cooled and formed by known methods
into hard cosmetic particles of hydrogenated by weight Camelina
seed oil to additive in about an 80:20 ratio.
[0024] In yet another exemplary embodiment, a cosmetic particle
composition comprised of about 75% by weight hydrogenated Camelina
seed oil (a triglyceride oil having at least 15% by weight fatty
acid moieties with carbon chain lengths of C.sub.18 or higher),
about 5% by weight hydrogenated Moringa oil, and about 20% by
weight hydrogenated castor oil (both triglyceride oils but without
the at least 15% by weight fatty acid moieties with carbon chain
lengths of C.sub.18 or higher) may be prepared. The triglyceride
oils may be melted, then cooled and formed by known methods into
hard cosmetic particles.
[0025] Hard cosmetic particles may be substantially suspended, for
example, in the topical formulation, such as a gel, lotion, cream,
emulsion, etc. to form a cosmetic composition adapted to deliver
the cosmetic particles proximate to the surface of the skin, hair,
and/or nails. Cosmetic particles in accordance with exemplary
embodiments of the present invention may be incorporated into the
topical formulation at a concentration of between about 0.01% to
about 50%, representatively about 1% to about 5%, but these ranges
may vary depending on the aesthetic and functional goals of the
topical formulation. When incorporated into a topical formulation,
hard cosmetic particles generally transform into soft cosmetic
particles. The resulting soft cosmetic particles may be visibly
intact but tactilely imperceptible in the topical formulation. The
transformation may take a few days or a few weeks. In an exemplary
embodiment, the temperature of the topical formulations may also be
increased to between about 50 degrees Celsius to about 60 degrees
Celsius to accelerate softening of the hard cosmetic particles.
[0026] In an exemplary embodiment, topical formulations generally
include surfactant-based topical formulations. Non-limiting
examples of surfactant-based topical formulations may include body
washes, hand soaps, body polishers, facial scrubs, shampoos, or the
like. The surfactant in surfactant-based formulations may include
carboxylates, fatty alcohols, glucosides, poloxamers, polyethylene
glycols, quaternary amines, sulfates, sulfonates, tweens, and
betaines and other glycine derivatives.
[0027] The resultant soft cosmetic particles may be adapted to
substantially disintegrate, rupture, burst or otherwise
(collectively referred to herein as "break") upon mechanical shear
forces applied by the user. In the case where there is no additive
entrapped, entrained, suspended or otherwise disposed within or on
the cosmetic particle, the broken soft cosmetic particles
themselves deliver emolliency and may also provide tactile and
visual appeal to the topical formulation. If the cosmetic particles
include at least one additive, the broken soft cosmetic particles
release at least one additive, thus liberating it to the surface of
the skin, hair or nails. Upon liberation, at least one additive and
one or more at least partially hydrogenated triglyceride oils may
mix with the topical formulation to spread at least one additive
substantially evenly over the surface of the skin, hair or nails of
a mammalian subject.
[0028] The hard cosmetic particles formulated in accordance with
exemplary embodiments as described herein may be delivered in a
stable intact form to a topical formulation manufacturer, a
cosmetic composition manufacturer, or the like that puts the hard
cosmetic particles into a topical formulation. In one exemplary
embodiment, the topical formulation may be warmed to accelerate the
transformation to soft cosmetic particles for delivery of
emolliency (from at least one or more triglyceride oils) and/or
delivery of at least one additive.
[0029] Accordingly, cosmetic particle compositions adapted to form
hard cosmetic particles that transform into soft cosmetic particles
when added to a topical formulation are provided. The cosmetic
particles remain hard during storage and shipping when their
hardness is needed to protect the particles themselves and any
additive entrapped, entrained, suspended or otherwise disposed
within or thereon and transform to soft cosmetic particles only
after their incorporation into a topical formulation. This ability
to transform combines the desirable properties of a hard bead with
the desirable properties of a soft bead.
[0030] While delivery of the cosmetic particles to the surface of
the skin, hair and/or nails of a mammalian subject has been
described, the invention is not so limited. The cosmetic particles
may be used to deliver additives and emolliency to other targets
for topical use such as to animals other than mammals, as well as
to plants, furniture, or the like.
[0031] While at least one exemplary embodiment has been presented
in the foregoing detailed description of the invention, it should
be appreciated that a number of variations exist. It should also be
appreciated that the exemplary embodiment or exemplary embodiments
are only examples, and are not intended to limit the scope,
applicability, or configuration of the invention in any way.
Rather, the foregoing detailed description will provide those
skilled in the art with a convenient road map for implementing an
exemplary embodiment of the invention, it being understood that
various changes may be made in the function and arrangement of
elements described in an exemplary embodiment without departing
from the scope of the invention as set forth in the appended claims
and their legal equivalents.
* * * * *