Drug – bio-affecting and body treating compositions – Manicure or pedicure compositions
Reexamination Certificate
1999-06-30
2001-05-29
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Manicure or pedicure compositions
Reexamination Certificate
active
06238651
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a polish composition containing a fluorinated organic compound and a film-forming substance. The present invention also relates to a process of treating nails by applying the topically applying the composition to nails.
2. Description of the Background
Users of nail polish are accustomed to preferably applying the polish in two successive layers to obtain good qualities of holding, brilliance, and shock resistance. However, between each application it is necessary to wait at least ten minutes before obtaining complete drying of the film both on the surface and in depth.
Thus, for several years research has been directed to the perfection of nail polishes that have much shorter drying times to meet a growing consumer demand for such products.
To accomplish this goal, different film-forming polymers have been considered. However, these materials produce rapid drying only on the surface.
It has also been suggested to use certain volatile oils, specifically silicone compounds such as cyclodimethicones or low-molecular-weight polydimethylsiloxanes, as well as hydrocarbon products such as isoparaffins and isododecane. However, these compounds have a number of drawbacks such as specifically low flash points, and some of them have a persistent disagreeable odor, thus limiting their use in the cosmetic field.
In addition to this problem of the rapidity of drying, the polish compositions must also impart good film-forming properties, and the film must present a homogeneous appearance and qualities of brilliance and resistance once it has dried.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a novel cosmetic polish composition for nail makeup and/or care.
It is another object of the invention to provide a composition that is characterized by very rapid drying after application to the surface of nails.
It is another object of the invention to provide a process of nail makeup and/or care.
It is another object of the invention to provide a process for accelerating the drying time of a cosmetic polish composition.
After numerous studies of various types of compounds, it has now been found that it was possible, by using volatile fluorinated compounds, to reduce very significantly the drying time of the film of polish while retaining good homogeneity and the qualities of brilliance and resistance. The volatile fluorinated compounds are well-suited for cosmetic polish compositions, since they are odorless and colorless, contrary to certain compounds previously known.
Accordingly, the objects of the invention, and others, may be accomplished with a polish composition, suitable as a nail makeup and/or for nail care, comprising:
a film-forming substance; and
an organic solvent comprising at least one volatile halogenated organic compound, where the halogen atoms are fluorine atoms, i.e., a fluorinated organic compound, and where the compound has a vapor pressure greater than 20 mba (2000 Pa) at 25° C.
The objects of the invention may also be accomplished with a process for increasing the drying time of a nail care composition, comprising incorporating the fluorinated organic compound into a nail care composition, e.g., a nail polish, optionally containing other organic solvents, in order to reduce the time required for the composition to dry on the nail surface.
The objects of the invention may also be accomplished with a method of polishing nails, by applying the inventive composition to the nails.
The objects of the invention may also be accomplished with a method of polishing nails, by applying the inventive composition to the nails.
The objects of the invention may also be accomplished with a method of preparing the inventive composition by combining the film-forming substance the organic solvent.
A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description.
DETAILED DESCRIPTION OF THE INVENTION
The inventive composition may be colorless or colored. When colored, the composition contains at least one coloring agent. The composition may also contain a plasticizing agent and/or a resin.
The organic fluorinated compound has a vapor pressure greater than about 20 mba (2000 Pa) at 25° C. Preferably, the compound has a vapor pressure greater than 40 mba at 25° C.
The term “halogenated organic compound whose halogen is fluorine” refers to an organic compound having no halogen atoms other than fluorine atoms. Perfluorinated compounds may be used in the inventive composition.
The term “organic solvent” or “organic solvent system” refers to any non-aqueous medium liquid at room temperature (25° C.), comprising, for example, a ketone, glycol, ester, ether, alkane, or aromatic aldehyde compound. The term “solvent” includes single liquids as well as mixtures of different liquids at all proportions.
Among the volatile halogenated organic compounds, also called volatile fluorinated compounds, of the polish solvent system, and meeting the criterion of vapor pressure mentioned above, examples include:
(1) perfluorocycloalkyl compounds represented by the formula (1) below:
in which:
n is 4 or 5,
m is 1 or 2, and
p is 1, 2, or 3
provided that when m=2, the groups are not necessarily in the alpha position relative to one another, and
(2) fluoroalkyl or heterofluoroalkyl compounds represented by the formula (II) below:
CH
3
—(CH
2
)
n
—[Z]
t
—(CF
2
)
m
—CF
3
(II)
in which:
t is 0 or 1,
n is 0, 1, 2, or 3,
m is 2, 3, 4, or 5, and
Z is O, S, or NR, with R being hydrogen, a —(CH
2
)
n
—CH
3
radical, or —(CF
2
)
m
—CF
3
.
Among the perfluorocycloalkyls of formula (I), preferred examples include perfluoromethylcyclopentane and perfluorodimethylcyclohexane, sold respectively under the names of “Flutec PC1®” and “Flutec PC3®” by BNFL FLUOROECHEMICALS Ltd.
Among the fluoroalkyl or heterofluoroalkyl compounds of formula (II), examples include methoxynonafluorobutane sold under the name “MSX 4518®” by the 3M Company (t=1, Z=O, n=0, and m=3), or ethoxynonafluorobutane sold under the name “HFE 7200” by the Archimex Company (t=1, Z=O, n=1, and m=3).
In the polish compositions of the invention, the solvent system may be present in a proportion between 50 and 90% by weight relative to the total weight of the polish, and the volatile fluorinated compound represents about 5 to 90% and preferably 10 to 50% of the total weight of the polish. This range for the amount of solvent includes all specific values and subranges therebetween, including 60, 70, 75, 80 and 85% by weight. The ranges for the amount of fluorinated compound includes all specific values and subranges therebetween, such as 8, 12, 15, 20, 30, 40, 60, 70 and 80% by weight.
Since the drying time of the polish compositions is a function of the concentration of volatile halogenated compound, it is possible to vary the drying time by varying the amount of the volatile halogenated compound.
Examples of the organic solvents that may comprise the solvent system of the polish, in addition to the volatile fluorinated compound, include acetone, methyl acetate, ethyl acetate, butyl acetate, amyl acetate, 2-methoxyethyl acetate, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIK), isopropyl acetate, ethanol, isopropanol, ethylene glycol, propylene glycol, pentylene glycol, glycerol, decane, heptane, cyclohexane, benzaldehyde, diethyl ether, dimethyl ether, octane or toluene, xylene, n-butanol, n-propanol, and mixtures thereof.
In an embodiment of the invention, the solvent system may also contain volatile silicones, such as:
(1) low-molecular-weight linear polydimethylsiloxanes represented by the formula (III) below:
in which:
R
1
, to R
6
are the same or different and represent a hydrogen atom, a hydroxyl group, or an alkyl or alkenyl C
1
-C
6
radical;
(2) cyclic polydimethylsiloxanes represented by the formula (IV) below:
in w
Fubara Blessing
L'Oreal
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Page Thurman K.
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