Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2000-01-24
2002-01-29
Gupta, Yogendra N. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S130000, C510S417000, C510S466000
Reexamination Certificate
active
06342469
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a make-up removing and/or cleansing cosmetic composition in the form of a water-in-oil emulsion comprising at least one silicone emulsifier, at least one branched-chain hydrocarbonaceous oil and at least one make-up removing oil, and to its use in removing make-up from and/or cleansing the skin, mucous membranes and/or eyes.
2. Description of the Background
The make-up removers and cleansers for the face conventionally used to date are compositions having a high concentration of fatty materials, the role of which, once applied to the skin, is to dissolve the various fatty substances present on the skin and in particular those which are present in make-up products, so as to remove them.
However, the use of such make-up removing compositions with a high content of fatty substances causes, at the time of their application, annoyance or discomfort which is reflected by a feeling of heaviness on the face or of a film on the eyes. The application of these compositions on the eyes can, furthermore, result in swelling of the eyelids.
The high concentration of fatty substances also presents problems of an unpleasant smell. It is consequently necessary to mask this smell by intense scenting, which causes other tolerance problems.
In addition, because of their “heavy” texture, these make-up removers lack freshness and are difficult to work. Furthermore, it is not easy to rinse them off. In fact, after they have been applied to the skin, such as that of the eyelids, rinsing using a tonic or water proves to be essential.
The need consequently remains for a cleansing and/or make-up removing composition which does not require rinsing after use on the skin, which exhibits a low concentration of fatty substances, thus avoiding the effect of “heaviness” on the skin, and which cleanses and/or removes make-up from the skin without the need to pass a cotton pad impregnated with the composition over the skin a number of times.
SUMMARY OF THE INVENTION
The inventors have now discovered, surprisingly, that a composition in the form of a water-in-oil emulsion, that is to say comprising an aqueous phase dispersed in an oily phase, comprising a silicone emulsifier, a branched-chain hydrocarbonaceous oil and a make-up removing oil makes it possible to obtain a composition which is fresh and light on application while being effective, in particular in cleansing and/or removing make-up from the skin, eyes or mucous membranes, without any nuisance or irritation and with excellent effectiveness.
Thus, the present invention provides a make-up removing and/or cleansing cosmetic composition in the form of a water-in-oil emulsion comprising an aqueous phase dispersed in an oily phase, and which also comprises:
at least one silicone emulsifier,
at least one branched-chain hydrocarbonaceous oil and
at least one make-up removing oil chosen from esters of a fatty acid comprising at least 12 carbon atoms.
The present invention also provides a method of removing make-up from and/or cleansing the skin, lips and/or eyes, comprising applying the composition to the skin, lips and/or eyes.
The present invention also provides a method of making the inventive composition.
The composition according to the present invention has the advantage of being light and fresh on application while carrying out removal of make-up or cleansing without rinsing being compulsory, which is particularly advantageous for skin suffering from certain skin conditions or in the cases of situations which are not very favourable to rinsing the skin, such as travelling. Furthermore, it leaves the skin soft, mat and non-sticky.
The composition according to the invention also makes possible its use in hot countries, where the use of make-up removers with an excessively high content of fatty substances gives a feeling of heaviness to the skin which is often unpleasant for the consumer
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
Mention may be made, as silicone emulsifiers which can enter into the composition according to the invention, of dimethicone copolyols and alkyl dimethicone copolyols. Mention may be made, as dimethicone copolyol, of, for example, the mixture of dimethicone copolyol and of dimethicone (polydimethylsiloxane) (10/90) sold by Dow Corning under the name DC3225C. According to a preferred embodiment of the invention, use is made, as silicone emulsifier, of an alkyl dimethicone copolyol having an alkyl radical comprising from 10 to 22 carbon atoms, such as cetyl dimethicone copolyol, for example the product sold under the name Abil EM-90 by Goldschmidt; lauryl dimethicone copolyol, for example the mixture of approximately 91% lauryl dimethicone copolyol and of approximately 9% isostearyl alcohol sold under the name Q2-5200 by Dow Corning; and mixtures thereof.
The silicone emulsifier is preferably used in an amount of active material ranging, for example, from 0.2 to 10% and preferably from 1 to 6% by weight with respect to the total weight of the composition. These ranges include all specific values and subranges therebetween, such as 0.5, 1.5, 2, 3, 5 and 8% by weight.
The oily phase of the composition according to the invention comprises at least one branched-chain hydrocarbonaceous oil and at least one make-up removing oil chosen from esters of a fatty acid comprising at least 12 carbon atoms.
The branched-chain hydrocarbonaceous oil preferably comprises from 10 to 20 carbon atoms and can be chosen, for example, from the group consisting of isohexadecane, isododecane, isoparaffins and their mixtures.
The amount of hydrocarbonaceous oil(s) can range, for example, from 1 to 35% and preferably from 5 to 20% by weight with respect to the total weight of the composition. These ranges include all specific values and subranges therebetween, such as 2, 3, 8, 10, 15, 25 and 30% by weight.
The make-up removing oil is chosen from esters of a fatty acid comprising at least 12 carbon atoms. These esters are preferably obtained from a straight- or branched-chain alcohol comprising from 1 to 17 carbon atoms and from a straight- or branched-chain fatty acid comprising at least 12 carbon atoms and preferably from 14 to 22 carbon atoms. They are preferably mono- or diesters.
The make-up removing oil is preferably chosen from the group of the esters which do not comprise any unsaturation and/or any ether or hydroxyl group. More advantageously still, the make-up removing oil is a saturated ester which does not comprise any ether or hydroxyl group.
Thus, the make-up removing oil of the composition in accordance with the invention can be chosen in particular from the group consisting of 2-ethylhexyl palmitate (or octyl palmitate), 2-ethylhexyl myristate (or octyl myristate), isopropyl palmitate, isopropyl myristate, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, methyl myristate, octyldodecyl octanoate, isodecyl neopentanoate, ethyl myristate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprate/caprylate, methyl palmitate, butyl myristate, isobutyl myristate, ethyl palmitate, isohexyl laurate, hexyl laurate, isopropyl isostearate and their mixtures.
The amount of make-up removing oil(s) can range, for example, from 1 to 20% and preferably from 3 to 15% by weight with respect to the total weight of the composition. These ranges include all specific values and subranges therebetween, such as 2, 5, 8, 10, 12 and 18% by weight.
In addition, according to a preferred embodiment of the invention, the oily phase comprises at least one volatile silicone oil which can be chosen, for example, from cyclodimethylsiloxanes, such as cyclohexadimethylsiloxane (or cyclohexamethicone) and cyclopentadimethylsiloxane (or cyclopentamethicone), and their mixtures.
The amount of volatile silicone oil(s) can range, for exam
Gupta Yogendra N.
Webb Gregory E.
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