CN116456955A - Two-phase composition comprising at least one hydrocarbon oil and at least one citrate ester, wherein the composition is preferably a cleaning composition - Google Patents
Two-phase composition comprising at least one hydrocarbon oil and at least one citrate ester, wherein the composition is preferably a cleaning composition Download PDFInfo
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- CN116456955A CN116456955A CN202180078365.4A CN202180078365A CN116456955A CN 116456955 A CN116456955 A CN 116456955A CN 202180078365 A CN202180078365 A CN 202180078365A CN 116456955 A CN116456955 A CN 116456955A
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Abstract
The present invention relates to a two-phase composition comprising an oil phase and an aqueous phase, said oil phase comprising: an oil phase comprising (a) at least one hydrocarbon oil; the aqueous phase comprises (b) at least one citrate ester, and (c) water, wherein the amount of (a) hydrocarbon oil in the composition is 6 wt% or more, preferably 7 wt% or more, and more preferably 8 wt% or more, relative to the total weight of the composition. The composition according to the invention has two visually distinct phases when not mixed. However, when mixed, the composition according to the invention may be converted into a single phase composition. Single phase compositions, such as emulsions, can provide good cosmetic benefits, such as good make-up removability, without discomfort.
Description
Technical Field
The present invention relates to a two-phase or biphasic composition having two visually distinct phases and being capable of being converted into a monophasic composition which can be reconverted into a two-phase or biphasic composition.
Background
Compositions having two visually distinct phases (particularly an aqueous phase and an oil phase, which do not emulsify in each other at rest) are commonly referred to as "two-phase" (or "biphasic") compositions. They differ from emulsions in that at rest, the two phases are separated and a single interface is formed between the two phases, rather than multiple interfaces being formed between the continuous phase and each discontinuous phase present in the emulsion.
Such two-phase compositions have been described, for example, in EP-A-370 856 and EP-A-603 080, in particular for removing makeup from around the eyes.
When used, the two-phase composition needs to be mixed, e.g., shaken, in order to form a single phase composition, e.g., a "temporary" emulsion, which is then applied to keratinous materials, e.g., skin. The single phase composition is required to provide a targeted cosmetic effect, such as good make-up removability. Preferably, if the single phase composition can provide a cosmetic effect without providing an uncomfortable feeling, such as tackiness.
Thus, there is a need for a two-phase or biphasic composition having two visually distinct phases, which upon mixing can be converted into a monophasic composition, wherein the monophasic composition can provide good cosmetic effects, such as good make-up removal, without discomfort, and can return to its original state, i.e. the two-phase or biphasic composition.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide a two-phase composition which can be converted into a single-phase composition when mixed, wherein the single-phase composition can provide good cosmetic effects, such as good make-up removability, without discomfort, and can recover the two-phase composition.
The above object is achieved by a two-phase composition comprising:
an oil phase comprising (a) at least one hydrocarbon oil; and
an aqueous phase comprising (b) at least one citrate ester, and (c) water,
wherein the method comprises the steps of
The amount of (a) hydrocarbon oil in the composition is 6 wt% or more, preferably 7 wt% or more, and more preferably 8 wt% or more, relative to the total weight of the composition.
The composition according to the invention can be converted into a single phase composition. Single phase compositions can be converted to two phase compositions.
(a) The hydrocarbon oil may be a volatile hydrocarbon oil, preferably a volatile branched C 8 -C 16 Hydrocarbon oils, and more preferably are selected from isohexadecane, isodecane, isododecane and mixtures thereof.
The amount of (a) one or more hydrocarbon oils in the composition according to the invention may be from 6 to 50 wt%, preferably from 7 to 45 wt%, and more preferably from 8 to 40 wt%, relative to the total weight of the composition.
(b) The citrate esters may be represented by the following chemical formula (I):
wherein the method comprises the steps of
R 1 、R 2 And R is 3 Independently represents a hydrogen atom, a saturated or unsaturated straight or branched C 1 -C 30 Hydrocarbyl, or saturated or unsaturated cyclic C 3 -C 30 Alkyl hydrocarbon, wherein R 1 、R 2 And R is 3 At least one of which is not a hydrogen atom, and
R 4 represents a hydrogen atom or R' 4 -CO-groups, wherein R' 4 Represents saturated or unsaturated, straight-chain or branched C 1 -C 8 Hydrocarbon radicals, or saturated or unsaturated cyclic C 3 -C 8 A hydrocarbon group.
(b) The citrate ester may be selected from triethyl citrate, tributyl citrate, trioctyl citrate, acetyl triethyl citrate, acetyl tributyl citrate, acetyl tri (2-ethylhexyl) citrate, and mixtures thereof.
The amount of (b) one or more citric acid esters in the composition according to the invention may be from 0.1 to 10 wt%, preferably from 0.5 to 5 wt%, and more preferably from 1 to 3 wt%, relative to the total weight of the composition.
The amount of (c) water in the composition according to the invention may be from 30 to 93% by weight, and preferably from 35 to 85% by weight, relative to the total weight of the composition.
The composition according to the invention may further comprise at least one non-volatile oil other than (a) a hydrocarbon oil, preferably at least one non-volatile non-polar oil, and more preferably a non-volatile ether oil.
The composition according to the invention may also comprise polar oils, for example ester oils, in an amount of from 0.01% to 20% by weight, and preferably from 0.1% to 10% by weight, relative to the total weight of the composition.
The amount of oil phase in the composition according to the invention may be from 7 to 70% by weight, and preferably from 15 to 65% by weight, relative to the total weight of the composition.
The amount of aqueous phase in the composition according to the invention may be from 30 to 93% by weight, and preferably from 35 to 85% by weight, relative to the total weight of the composition.
The composition according to the invention may be a cosmetic composition, preferably a cleansing cosmetic composition, and more preferably a cleansing cosmetic composition for the skin and eyelashes.
The invention also relates to a cosmetic method for keratin materials, comprising:
mixing the composition according to the invention to form a single phase composition; and
the single phase composition is applied to the keratinous material.
Best mode for carrying out the invention
The present inventors have diligently studied and found that a two-phase composition which can be converted into a single-phase composition upon mixing can be provided, wherein the single-phase composition can provide good cosmetic effects such as good make-up removability without discomfort and can be restored to the two-phase composition.
Accordingly, one aspect of the present invention relates to a two-phase composition comprising:
an oil phase comprising (a) at least one hydrocarbon oil; and
an aqueous phase comprising (b) at least one citrate ester, and (c) water,
wherein the method comprises the steps of
The amount of (a) hydrocarbon oil in the composition is 6 wt% or more, preferably 7 wt% or more, and more preferably 8 wt% or more, relative to the total weight of the composition.
The composition according to the invention has two visually distinct phases when not mixed. However, when used, the composition according to the invention may be converted into a single phase composition by mixing. Single phase compositions, such as emulsions, can provide good cosmetic results, such as good make-up removability, without discomfort, such as tackiness. Single phase compositions can revert to two phase compositions when not in use.
The composition according to the invention is stable such that it can maintain an oil phase and an aqueous phase, respectively, when not mixed. Thus, the two-phase or biphasic appearance of the composition according to the invention can be maintained during storage or the like of the composition according to the invention.
In particular, the composition according to the invention may be stable such that the appearance and/or smell of the composition may remain unchanged over a long period of time under various temperatures and storage conditions. For example, the composition according to the invention may be stable at lower temperatures, with or without shaking. Thus, the composition according to the invention can be stored well (especially at lower temperatures) even during transportation of automobiles, which can cause vibrations and the like.
When used, the composition according to the invention is mixed. The two phases in the composition according to the invention are an oil phase comprising at least one oil and an aqueous phase comprising water. Thus, when mixing the composition according to the invention, one of the two phases may be dispersed in the other phase to form a visually homogeneous or single phase O/W or W/O composition, such as an O/W or W/O emulsion.
The mixing of the composition according to the invention can be easily carried out. For example, the mixing of the composition according to the invention can be carried out by shaking by hand. After mixing the composition according to the invention, the composition may form a single phase and remain in the single phase for a certain period of time without mixing again.
According to the present invention, a single-phase composition formed from a two-phase composition can provide good cosmetic effects, such as good make-up removability. Thus, the composition according to the invention can be used as a cosmetic composition, preferably a cleansing cosmetic composition, and more preferably a cleansing cosmetic composition for the skin and eyelashes.
Furthermore, single phase compositions formed from the two phase compositions according to the present invention can provide good textures, such as a smooth feel. In addition, it can provide less skin flaking. Skin exfoliation reflects a relatively large loss of the outer layer of the epidermis of the skin and can roughen the skin surface. Thus, the composition according to the present invention may provide a smooth skin finish.
Furthermore, a single phase composition formed from a two phase composition according to the present invention may be more comfortable, e.g., it may be less irritating. Thus, the composition according to the invention may be, for example, gentle to the skin, in particular sensitive skin such as the skin around the eyes.
If the two-phase composition according to the invention is transparent prior to mixing, the single-phase composition formed by mixing the two-phase composition may also be transparent.
The single phase composition formed from the two phase composition according to the present invention can be quickly restored to the two phase composition again after a certain period of time by causing the phase separation to re-form two visually distinct phases again. According to the invention, the interface between the two reformed phases can be clean, so that there is no precipitation at the interface.
The composition according to the invention is particularly useful as a makeup remover, preferably for keratin fibres, and more preferably for eyelashes, i.e. mascara.
Hereinafter, the composition according to the present invention will be described in detail.
[ composition ]
(Hydrocarbon oil)
The composition according to the invention comprises (a) at least one hydrocarbon oil. If two or more hydrocarbon oils are used, they may be the same or different.
(a) The hydrocarbon oil may form the oil phase of the composition according to the invention.
The term "hydrocarbon" as used herein refers to a compound formed from carbon and hydrogen atoms and does not contain any heteroatoms such as oxygen and nitrogen atoms.
As used herein, "oil" refers to a fatty compound or substance that is in liquid or paste (non-solid) form at room temperature (25 ℃) and atmospheric pressure (760 mmHg).
(a) The hydrocarbon oil may be selected from aliphatic hydrocarbon oils, alicyclic hydrocarbon oils and aromatic hydrocarbon oils, preferably aliphatic hydrocarbon oils, and more preferably aliphatic and saturated hydrocarbon oils.
(a) The hydrocarbon oil may be volatile or non-volatile. Preferably (a) the hydrocarbon oil is volatile. In other words, (a) the hydrocarbon oil is preferably a volatile hydrocarbon oil.
For the purposes of the present invention, the term "volatile" oil refers to an oil capable of evaporating in less than one hour when in contact with keratin materials, at room temperature (25 ℃) and atmospheric pressure (760 mmHg). The volatile oil may be a volatile cosmetic oil which is a liquid at room temperature, in particular having a non-zero vapour pressure at room temperature and atmospheric pressure, in particular having a pressure of from 0.13Pa to 40 000Pa (10 -3 To 300 mmHg), preferably from 1.3Pa to 13 000Pa (0.01 to 100 mmHg), and preferably from 1.3Pa to 1300Pa (0.1 to 10 mmHg).
According to a preferred embodiment, the volatile hydrocarbon oil has a flash point of greater than 65 ℃, and more preferably greater than 80 ℃.
(a) The hydrocarbon oil may be selected from volatile hydrocarbon oils containing 8 to 16 carbon atoms, preferably volatile branched C 8 -C 16 Hydrocarbon oils, and more preferably volatile branched C 8 -C 16 Alkanes (also known as isoparaffins). It may even be more preferred that (a) the hydrocarbon oil is selected from the group consisting of isohexadecane, isodecane, isododecane (also known as 2,4, 6-pentamethylheptane) and mixtures thereof.
In another aspect, (a) the hydrocarbon oil may also be a linear volatile alkane containing from 7 to 17 carbon atoms, particularly from 9 to 15 carbon atoms, and more particularly from 11 to 13 carbon atoms. Mention may be made in particular of n-nonadecane, n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane and n-hexadecane, and mixtures thereof.
In particular, (a) the hydrocarbon oil may be selected from isohexadecane, isodecane, isododecane and mixtures thereof.
The amount of the (a) one or more hydrocarbon oils in the composition according to the invention is 6 wt% or more, preferably 7 wt% or more, and more preferably 8 wt% or more, relative to the total weight of the composition.
The amount of (a) one or more hydrocarbon oils in the composition according to the invention may be 50 wt% or less, preferably 45 wt% or less, and more preferably 40 wt% or less, relative to the total weight of the composition, provided that the amount of (a) one or more hydrocarbon oils is not zero.
The amount of the (a) hydrocarbon oil(s) in the composition according to the invention may be from 6 to 50 wt%, preferably from 7 to 45 wt%, and more preferably from 8 to 40 wt%, relative to the total weight of the composition.
(citrate ester)
The composition according to the invention comprises (b) at least one citrate ester. If two or more citrates are used, they may be the same or different.
(b) The citrate esters may be represented by the following chemical formula (I):
wherein the method comprises the steps of
R 1 、R 2 And R is 3 Independently represents a hydrogen atom, a saturated or unsaturated straight or branched C 1 -C 30 Hydrocarbyl, or saturated or unsaturated cyclic C 3 -C 30 Hydrocarbyl radicals, wherein R 1 、R 2 And R is 3 At least one of which is not a hydrogen atom, and
R 4 represents a hydrogen atom or R' 4 -CO-groups, wherein R' 4 Represents saturated or unsaturated, straight-chain or branched C 1 -C 8 Hydrocarbon radicals, or saturated or unsaturated cyclic C 3 -C 8 A hydrocarbon group.
Preferably R 1 、R 2 And R is 3 C being wholly saturated or unsaturated, straight-chain or branched 1 -C 30 Hydrocarbon radicals, or saturated or unsaturated cyclic C 3 -C 30 Hydrocarbon radicals, more preferably saturated or unsaturated, straight-chain or branched C 1 -C 30 Hydrocarbon radicals, and even more preferably straight-chain or branched C 1 -C 30 An alkyl group.
Preferably R 4 Is a hydrogen atom or R' 4 -CO-groups, wherein R' 4 Represents saturated or unsaturated, straight-chain or branched C 1 -C 8 Hydrocarbyl radicals, more preferably hydrogen atoms or R' 4 -CO-groups, wherein R' 4 C represents a straight or branched chain 1 -C 8 Alkyl groups, and even more preferably hydrogen atoms or R' 4 -CO-groups, wherein R' 4 Represents methyl.
It may be preferred that (b) the citrate ester is selected from the group consisting of triethyl citrate, tributyl citrate, trioctyl citrate, acetyl triethyl citrate, acetyl tributyl citrate, acetyl tri (2-ethylhexyl) citrate, and mixtures thereof, more preferably, (b) the citrate ester is selected from the group consisting of triethyl citrate, tributyl citrate, acetyl triethyl citrate, acetyl tributyl citrate, and mixtures thereof, and even more preferably is ethyl citrate.
The amount of (b) one or more citric acid esters in the composition according to the invention may be 0.1% by weight or more, preferably 0.5% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the composition.
The amount of (b) one or more citric acid esters in the composition according to the invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 3% by weight or less, relative to the total weight of the composition, provided that the amount of (b) one or more citric acid esters is not zero.
The amount of (b) one or more citric acid esters in the composition according to the invention may be from 0.1 to 10% by weight, preferably from 0.5 to 5% by weight, and more preferably from 1 to 3% by weight, relative to the total weight of the composition.
(Water)
The composition according to the invention comprises (c) water.
(c) The water may form the aqueous phase of the composition according to the invention.
The amount of (c) water in the composition according to the invention may be 30% by weight or more, and preferably 35% by weight or more, relative to the total weight of the composition.
The amount of (c) water in the composition according to the invention may be 93% by weight or less, and preferably 85% by weight or less, with respect to the total weight of the composition, provided that the amount of (c) water is not zero.
The amount of (c) water in the composition according to the invention may be from 30 to 93% by weight, and preferably from 35 to 85% by weight, relative to the total weight of the composition.
(non-volatile oil)
The composition according to the invention may comprise at least one non-volatile oil which is not (a) a hydrocarbon oil. If two or more non-volatile oils are used, they may be the same or different.
The non-volatile oil may be selected from silicone oils, non-silicone oils and mixtures thereof.
Non-volatile silicone oil:
The non-volatile silicone oils useful in the present invention may be selected from those having a viscosity at 25℃of greater than or equal toAt 8 centistokes (cSt) (8X 10) - 6 m 2 S) and less than 800,000 cSt, preferably 10 to 600,000 cSt, and preferably 100-500,000 cSt. The viscosity of such silicones can be measured according to standard ASTM D-445.
Among these silicone oils, two types of oils can be distinguished according to whether they contain phenyl groups. Thus, the non-volatile silicone oil may be selected from the group consisting of non-phenylated silicone oils and phenylated silicone oils.
Representative examples of these nonvolatile non-phenylated silicone oils that may be mentioned include polydimethylsiloxanes (polydimethylsiloxanes); alkyl polydimethyl siloxane; vinyl methyl polymethylsiloxane (vinyl methyl methicone); and silicones modified with optionally fluorinated aliphatic groups or with functional groups such as hydroxyl, thiol and/or amine groups.
Thus, mention may be made of nonvolatile non-phenylated silicone oils comprising:
PDMS comprising alkyl or alkoxy groups, pendant and/or at the end of the silicone chain, each of these groups containing from 2 to 24 carbon atoms,
PDMS comprising aliphatic or functional groups such as hydroxyl, thiol and/or amine groups,
polyalkylmethylsiloxanes optionally substituted by fluorinated groups, such as polymethyltrifluoropropyl dimethylsiloxane,
Polyalkylmethylsiloxanes substituted by functional groups, such as hydroxyl groups, thiol groups and/or amine groups, such as dihydroxydimethylsiloxane (dimethiconol)
Polysiloxanes modified with fatty acids, fatty alcohols or polyalkylene oxides, and
-mixtures thereof.
According to one embodiment, the non-volatile silicone oil is selected from non-volatile non-phenylated linear silicone oils.
The non-volatile non-phenylated linear silicone oil can be chosen in particular from silicones of formula:
wherein:
R 1 、R 2 、R 5 and R is 6 Together or separately are alkyl groups containing 1 to 6 carbon atoms,
R 3 and R is 4 Together or separately are alkyl, vinyl, amine or hydroxy groups having 1 to 6 carbon atoms,
x is an alkyl group having 1 to 6 carbon atoms, a hydroxyl group or an amine group, and
n and p are integers selected to have a fluid compound.
As non-volatile silicone oils which can be used according to the invention, mention may be made of:
-substituent R 1 To R 6 And X represents methyl, and p and n are such that the viscosity is 500 cSt, such as the product sold under the name SE30 by General Electric company, the product sold under the name AK 500000 by Wacker company, the product sold under the name Mirasil DM500 000 by Bluestar company and the product sold under the name Dow Corning 200Fluid 500 000cSt by Dow Corning company,
-substituent R 1 To R 6 And X represents methyl, and p and n are such that the viscosity is 300 cSt, for example the product sold by Wacker under the name Wacker Belsil DM 300 000,
-substituent R 1 To R 6 And X represents methyl, and p and n are such that the viscosity is 60,000 cSt, for example the product sold by Dow Corning under the name Dow Corning 200 Fluid 60000 CS, and the product sold by Wacker under the name Wacker Belsil DM 60,000,
-substituent R 1 To R 6 And X represents methyl, and p and n are such that the viscosity is 350cSt, e.g., the product sold by Dow Corning 200 Fluid 350CS, by Dow Corning Corp, and
-substituent R 1 To R 6 Represents methyl, the radical X represents hydroxyl, and n and p give a viscosity of 700cSt, for example the product sold by the company Momentive under the name Baysilone Fluid T0.7.7.
According to another embodiment, the non-volatile silicone oil is selected from non-volatile phenylated silicone oils.
Representative examples of these nonvolatile phenylated silicone oils which may be mentioned include:
-phenyl silicone oils corresponding to the formula;
wherein in formula (I): the radicals R independently of one another represent methyl or phenyl, with the proviso that at least one radical R represents phenyl. Preferably, in this formula, the phenyl silicone oil comprises at least three phenyl groups, for example at least four, at least five or at least six phenyl groups,
-phenyl silicone oils corresponding to the formula;
wherein in formula (II): the radicals R independently of one another represent methyl or phenyl, with the proviso that at least one radical R represents phenyl. Preferably, in this formula, the organopolysiloxane comprises at least three phenyl groups, for example at least four or at least five phenyl groups. Mixtures of the foregoing phenyl organopolysiloxanes may be used. Examples which may be mentioned include mixtures of triphenyl, tetraphenyl or pentaphenyl organopolysiloxanes,
-phenyl silicone oils corresponding to the formula;
wherein in formula (III): me represents methyl, ph represents phenyl. Such phenylsilicones are manufactured, inter alia, by Dow Corning under the designation PH-1555HRI or Dow Corning 555Cosmetic Fluid (chemical name: 1,3, 5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane; INCI name: trimethylpentaphenyltrisiloxane). The label Dow Corning 554Cosmetic Fluid may also be used,
-phenyl silicone oils corresponding to the formula;
wherein in formula (IV), me represents methyl, y is 1 to 1000, and X represents-CH 2 -CH(CH 3 )(Ph)。
-phenyl silicone oils corresponding to the following formula (V);
wherein in formula (V): me is methyl and Ph is phenyl, OR' represents the group-OSiMe 3 And y is 0 or 1 to 1000, and z is 1 to 1000, so that compound (V) is a non-volatile oil. According to a first embodiment, y is 1 and 1000. For example, trimethylsiloxyphenyl dimethicone, particularly sold under the designation Belsil PDM 1000 by Wacker corporation, may be used. According to a second embodiment, y is equal to 0. For example, phenyl-trimethylsiloxy trisiloxane, especially sold under the designation Dow Corning 556Cosmetic Grade Fluid,
-phenyl silicone oils corresponding to the following formula (VI), and mixtures thereof;
wherein in formula (VI):
-R 1 to R 10 C independently of one another is saturated or unsaturated, straight-chain, cyclic or branched 1 -C 30 Based on the hydrocarbon-based group,
-m, n, p and q are each independently of the other integers from 0 to 900, provided that the sum of m+n+q is not 0; preferably, the sum of m+n+q is from 1 to 100. Preferably, the sum of m+n+p+q is from 1 to 900, and more preferably from 1 to 800. Preferably, q is equal to 0,
-phenyl silicone oils corresponding to the following formula (VII) and mixtures thereof;
wherein in formula (VII):
-R 1 to R 6 C independently of one another is saturated or unsaturated, straight-chain, cyclic or branched 1 -C 30 Based on the hydrocarbon-based group,
-m, n and p are each independently of the other integers from 0 to 100, provided that the sum of n+m is from 1 to 100; preferably, R 1 To R 6 Independently of one another, represent saturated, straight-chain or branched C 1 -C 30 And in particular C 1 -C 12 Hydrocarbon-based groups of (a), and in particular methyl, ethyl, propyl or butyl; r is R 1 To R 6 May be particularly identical and may additionally be methyl; preferably, in formula (VII), m=1 or 2 or 3, and/or n=0 and/or p=0 or 1 are applicable,
-phenyl silicone oils corresponding to formula (VIII), and mixtures thereof:
wherein in formula (VIII):
R is C 1 To C 30 An alkyl group, an aryl group or an aralkyl group,
-n is an integer from 0 to 100, and
-m is an integer from 0 to 100, provided that the sum of n+m is from 1 to 100. In particular, the radicals R of the formula (VIII) and R as defined previously 1 -R 10 Can each represent a linear or branched, saturated or unsaturated alkyl radical, in particular C 2 -C 20 In particular C 3 -C 16 And more particularly C 4 -C 10 Or C being monocyclic or polycyclic 6 -C 14 And especially C 10 -C 13 Aryl, or aryl and alkyl residues thereof are as previously defined aralkyl. Preferably, R and R of formula (VIII) 1 To R 10 Can each represent methyl, ethyl, propyl, isopropyl, decyl, dodecyl or octadecyl, orIs phenyl, tolyl, benzyl or phenethyl. According to one embodiment, a viscosity of 5-1500mm at 25℃may be used 2 /s (i.e., 5-1500 cSt), and preferably a viscosity of 5-1000mm 2 Phenyl silicone oil of formula (VIII) at/s (i.e. 5-1000 cSt). As phenyl silicone oil of formula (VIII), phenyl trimethicone, such as DC556 from Dow Corning (22.5 cSt),sillbione 70663V30 (28 cSt), or diphenyl dimethicone, such as walser's Belsil oil, particularly Belsil PDM1000 (1000 cSt), belsil PDM 200 (200 cSt), and Belsil PDM 20 (20 cSt). The values in brackets represent the viscosity at 25 ℃.
-phenyl silicone oils corresponding to the formula:
wherein in formula (IX):
R 1 、R 2 、R 5 and R is 6 Together or separately are alkyl groups containing 1 to 6 carbon atoms,
R 3 and R is 4 Together or separately an alkyl or aryl group having 1 to 6 carbon atoms,
x is an alkyl group having 1 to 6 carbon atoms, a hydroxyl group or a vinyl group,
n and p are selected such that the weight average molecular mass of the oil is less than 200 g/mol, preferably less than 150 g/mol, and more preferably less than 100 g/mol.
The phenylsilicones most particularly suitable for use in the present invention can be those corresponding to formula (II) above and in particular formulae (III), (V) and (VIII).
More particularly, the phenyl silicone may be selected from phenyl trimethicone, phenyl dimethicone, phenyl trimethicone oxy diphenylsiloxane, diphenyl dimethicone, diphenyl methyl diphenyl trisiloxane, and 2-phenylethyl trimethicone oxy silicate, and mixtures thereof.
Preferably, the nonvolatile phenyl silicone oils used according to the invention can have a weight average molecular weight of 500 to 10 g/mol.
Non-volatile non-silicone oils:
as non-volatile non-silicone oils, mention may be made of:
vegetable oils, for example, plant sterol esters, such as plant sterol oleate, plant sterol isostearate and lauroyl/octyldodecyl/plant sterol glutamate, and triglycerides formed from glycerol fatty acid esters, in particular the fatty acids thereof, may have C 18 To C 36 Those of a range of chain lengths, these oils may be linear or branched and saturated or unsaturated; these oils may be, inter alia, heptanoic or caprylic triglyceride, shea butter, alfalfa oil, poppy seed oil, pumpkin seed oil, millet oil, barley oil, quinoa oil, rye oil, candelilla oil, passion flower oil, shea butter, aloe oil, sweet almond oil, peach oil (pecan stone oil), peanut oil, argan oil, avocado oil, monkey oil, borage oil, broccoli oil, calendula oil, bitter tea oil, carrot oil, safflower oil, hemp seed oil, rapeseed oil, cotton seed oil, coconut oil, pumpkin seed oil, wheat germ oil, jojoba oil, lily oil, hazelnut oil, corn oil, meadowfoam seed oil, holy johnsongrass seed oil, mo Nuoyou (monoi oil), hazelnut oil, apricot kernel oil, walnut oil, olive oil, evening primrose oil, palm oil, black currant seed oil, grape seed oil, kiwi seed oil, musk, sesame seed oil, sesame oil, castor oil, sunflower seed oil, and mixtures thereof, or alternatively caprylic/capric glycerides, such as those sold by Steearineries Dubois, inc., or by Dynamit Nobel, inc. under the name Miglyol And->Those obtained;
-synthetic ethers containing from 10 to 40 carbon atoms;
synthetic esters, e.g. of formula R 1 COOR 2 Wherein R is 1 Represents at least one linear or branched fatty acid residue containing from 1 to 40 carbon atoms, and R 2 Represents a (particularly branched) hydrocarbon-based chain containing from 1 to 40 carbon atoms, provided that R 1 +R 2 And is more than or equal to 10. The esters may be chosen in particular from fatty acid esters of alcohols, such as cetyl octanoate, isopropyl alcohol esters, such as isopropyl myristate, isopropyl palmitate, ethyl palmitate, 2-ethylhexyl palmitate, isopropyl stearate, isopropyl isostearate, isostearyl isostearate, octyl stearate, hydroxylated esters, such as isostearyl lactate, octyl hydroxystearate, diisopropyl adipate, heptanoate, and in particular isostearyl heptanoate, octanoates of alcohols or polyols, decanoates or ricinoleates, such as propylene glycol dioctate, cetyl octanoate, tridecyl octanoate, 2-ethylhexyl 4-diheptanoate, 2-ethylhexyl palmitate, alkyl benzoate, in particular C 12-15 Alkyl benzoates, polyethylene glycol diheptanoate, propylene glycol 2-diethylhexyl ester, and mixtures thereof, hexyl laurate, pivalates such as isodecyl pivalate, isotridecyl pivalate, isostearyl pivalate, octyldodecyl pivalate, isononanoates such as isononyl isononanoate, isotridecyl isononanoate, octyl isononanoate, hydroxylated esters such as isostearyl lactate and diisostearyl malate;
Polyol esters and pentaerythritol esters, such as dipentaerythritol tetrahydroxy stearate/tetraisostearate;
-esters of diol dimers and diacid dimers;
copolymers of diol dimers and diacid dimers and esters thereof, for example dimer linolic/dimer linolic copolymers and esters thereof;
copolymers of polyols and diacid dimers and esters thereof;
fatty alcohols which are liquid at room temperature and which have branched and/or unsaturated carbon-based chains containing from 12 to 26 carbon atoms, such as 2-octyldodecanol, isostearyl alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol and 2-undecylpentadecanol;
-C 12 -C 22 higher fatty acids such as oleic acid, linoleic acid, and linolenic acid, and mixtures thereof;
dialkyl carbonates, the two alkyl chains being identical or different, such as dioctyl carbonate; and
-an oil having a molar mass of about 400 to about 10 g/mol, in particular about 650 to about 10000g/mol, in particular about 750 to about 7500g/mol, and more in particular about 1000 to about 5000 g/mol; mention may in particular be made of either alone or as a mixture: (i) Lipophilic polymers, e.g. polybutenes, polyisobutenes, (e.g. hydrogenated), polydecenes and hydrogenated polydecenes, vinylpyrrolidone copolymers, e.g. vinylpyrrolidone/1-hexadecene copolymers, and polyvinylpyrrolidone (PVP) copolymers, e.g. C 2 -C 30 Copolymers of olefins, e.g. C 3 -C 22 And combinations thereof; (ii) Linear fatty acid esters having a total carbon number of 35 to 70, such as pentaerythritol tetrapelargonate; (iii) Hydroxylated esters, such as polyglycerol-2 triisostearate; (iv) aromatic esters, such as tridecyl trimellitate; (v) Fatty alcohols or branching C 24 -C 28 Esters of fatty acids, such as those described in patent US 6 491 927 and pentaerythritol esters, and in particular triisoarachidyl citrate (triisoarachidyl citrate), pentaerythritol tetraisononanoate, glycerol triisostearate, glycerol 2-tridecyltetradecanoate, pentaerythritol tetraisostearate, poly (2-glyceryl) tetraisostearate or pentaerythritol 2-tetradecyltetradecanoate; (vi) Glycol dimer esters and polyesters, such as esters of glycol dimers and fatty acids, and esters of glycol dimers and diacids.
In one embodiment, the nonvolatile non-silicone oil may be selected from the group consisting of non-polar oils, preferably ether oils, and more preferably dialkyl ethers represented by the formula
R 1 -O-R 2
Wherein the method comprises the steps of
R 1 And R is 2 Each independently represents a straight chain, branched chain or cyclic C 4-24 Alkyl, preferablyC 6-18 Alkyl, and more preferably C 8-12 An alkyl group. Can preferably be R 1 And R is 2 The same applies.
As straight chain alkyl groups, mention may be made of butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, behenyl, docosyl, tricosyl and tetracosyl.
As the branched alkyl group, there is a branched alkyl group, mention may be made of 1-methylpropyl, 2-methylpropyl, tert-butyl, 1-dimethylpropyl, 3-methylhexyl, 5-methylhexyl, 1-ethylhexyl, 2-ethylhexyl, 1-butylpentyl, 5-methyloctyl, 2-butyloctyl, isotridecyl, 2-pentylnonyl, 2-hexyldecyl, isostearyl, 2-heptylundecyl, 2-octyldodecyl, 1, 3-dimethylbutyl, 1- (1-methylethyl) -2-methylpropyl, 1, 3-tetramethylbutyl, 3, 5-trimethylhexyl, 1- (2-methylpropyl) -3-methylbutyl, 3, 7-dimethyloctyl and 2- (1, 3-trimethylbutyl) -5, 7-trimethyloctyl.
As cyclic alkyl groups, mention may be made of cyclohexyl, 3-methylcyclohexyl and 3, 5-trimethylcyclohexyl.
Preferably, the ether oil is selected from the group consisting of dioctyl ether, didecyl ether, dilauryl ether, diisostearyl ether, dioctyl ether, nonylphenyl ether, dodecyldimethylbutyl ether, cetyl dimethylbutyl ether, cetyl isobutyl ether, and mixtures thereof.
More preferably, the ether oil is selected from the group consisting of dioctyl ether, didecyl ether, dilauryl ether, diisostearyl ether, dioctyl ether, and mixtures thereof.
Thus, the composition according to the invention, in particular the oily phase thereof, may further comprise at least one non-volatile oil other than (a) a hydrocarbon oil, preferably at least one non-volatile non-polar oil, and more preferably a non-volatile ether oil.
The amount of non-volatile oil in the composition according to the invention may be 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more, relative to the total weight of the composition.
The amount of non-volatile oil in the composition according to the invention may be 12 wt% or less, preferably 10 wt% or less, and more preferably 8 wt% or less, relative to the total weight of the composition, provided that the amount of non-volatile oil is not zero.
The amount of non-volatile oil in the composition according to the invention may be from 1 to 12% by weight, preferably from 3 to 10% by weight, and more preferably from 5 to 8% by weight, relative to the total weight of the composition.
In one embodiment, the non-volatile oil in the composition according to the invention may be selected from polar oils, for example ester oils, such as synthetic esters as described above. For example, the composition according to the invention may comprise polar oils, such as ester oils, in an amount of 20 wt% or less, and preferably 10 wt% or less, relative to the total weight of the composition. On the other hand, the amount of polar oil such as ester oil may be 0.01 wt% or more, and preferably 0.1 wt% or more, relative to the total weight of the composition. Thus, the amount of polar oil, such as ester oil, may be from 0.01 wt% to 20 wt%, and preferably from 0.1 wt% to 10 wt%, relative to the total weight of the composition.
In another embodiment, it may be preferred that the composition according to the invention, in particular the oily phase thereof, is free of polar oils. Thus, the composition according to the invention may not comprise polar oils such as ester oils.
(aromatic Ketone Compound)
The composition according to the invention, in particular the aqueous phase thereof, may comprise at least one aromatic ketone compound. If two or more aromatic ketone compounds are used, they may be the same or different.
The aromatic ketone compound is represented by the following chemical formula (I):
wherein the method comprises the steps of
R 5 、R 6 And R is 7 Each independently represents a hydrogen atom, a hydroxyl group, or C 1 -C 6 Alkyl or C 1 -C 6 Alkoxy, provided that R 5 、R 6 And R is 7 At least one of which represents a hydroxyl group, and
r represents C 1 -C 6 Alkyl or aryl.
As C 1 -C 6 Alkyl groups, for example methyl, ethyl and propyl groups may be mentioned. Methyl is preferred.
As C 1 -C 6 Alkoxy, for example methoxy, ethoxy and propoxy may be mentioned. Methoxy is preferred.
As the aryl group, for example, phenyl group, substituted phenyl group, naphthyl group and substituted naphthyl group can be mentioned. As substituents, mention may be made of hydroxy and C 1 -C 6 Alkyl groups such as methyl. Phenyl is preferred.
Preferably, R in the above formula (I) represents methyl, ethyl or phenyl, preferably methyl or phenyl, and more preferably methyl.
As aromatic ketone compounds, mention may be made of, for example,
2-hydroxy acetophenone, which is a compound of the formula,
3-hydroxy acetophenone, which is a compound of the formula,
4-hydroxyacetophenone,
2, 5-dihydroxyacetophenone,
2, 6-dihydroxyacetophenone,
4-hydroxy-3-methoxyacetophenone,
3,4, 5-trihydroxyacetophenone,
2',2' -dihydroxybenzophenone,
2-hydroxybenzophenone, which is a compound of the formula,
2,2', 4' -tetrahydroxybenzophenone, and
3,4,2',4',6' -pentahydroxybenzophenone.
The aromatic ketone compound is preferably hydroxyacetophenone, more preferably monohydroxyacetophenone, and even more preferably 4-hydroxyacetophenone.
The amount of aromatic ketone compound in the composition according to the present invention may be 0.01 wt% or more, preferably 0.05 wt% or more, and more preferably 0.1 wt% or more, relative to the total weight of the composition.
The amount of aromatic ketone compound in the composition according to the invention may be 5 wt% or less, preferably 3 wt% or less, and more preferably 1 wt% or less, relative to the total weight of the composition, provided that the amount of aromatic ketone compound is not zero.
The amount of aromatic ketone compound in the composition according to the invention may be from 0.01 to 5% by weight, preferably from 0.05 to 3% by weight, and more preferably from 0.1 to 1% by weight, relative to the total weight of the composition.
(polyglycerol fatty acid ester)
The composition according to the invention, in particular the aqueous phase thereof, may comprise at least one polyglycerin fatty acid ester. If two or more polyglycerin fatty acid esters are used, they may be the same or different.
The polyglycerin fatty acid ester may be selected from monoesters, diesters and triesters of linear or branched saturated or unsaturated fatty acids, preferably saturated fatty acids, which contain 2 to 28 carbon atoms, preferably 4 to 20 carbon atoms, and more preferably 6 to 12 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, capric acid, caprylic acid and myristic acid.
Preferably the polyglycerin fatty acid ester has polyglycerin moieties from 2 to 6 glycerins, more preferably 4 to 6 glycerins, and even more preferably 5 or 6 glycerins. In other words, it is preferable that the polyglycerin fatty acid ester contains 2 to 6 polyglycerin units, more preferably 4 to 6 polyglycerin units, and even more preferably 5 or 6 polyglycerin units.
In the composition according to the invention, the polyglyceryl fatty acid ester may be present in the aqueous phase. Thus, the polyglycerin fatty acid ester may be relatively hydrophilic.
Therefore, the HLB (hydrophilic lipophilic balance) value of the polyglycerin fatty acid ester may be 8.0 or more, preferably 9.0 or more, and more preferably 10.0 or more. If two or more polyglycerin fatty acid esters are used, the HLB value is determined from a weighted average of the HLB values of all polyglycerin fatty acid esters.
The term HLB ("hydrophilic-lipophilic balance") is well known to those skilled in the art and reflects the ratio between hydrophilic and lipophilic portions of a molecule. The HLB value can be calculated using the following formula: hlb=20 x (1-S/a), where S is the saponification value of the ester and a is the neutralization value of the fatty acid.
The polyglycerin fatty acid ester may be selected from polyglycerin fatty acid monoesters.
The HLB value of the polyglycerin fatty acid monoester may be 8.0 to 17.0, preferably 9.0 to 16.0, and more preferably 10.0 to 15.0. If two or more polyglycerin fatty acid monoesters are used, the HLB value is determined by a weighted average of the HLB values of all polyglycerin fatty acid monoesters.
The polyglyceryl fatty acid monoester may be selected from the group consisting of PG4 oleate (HLB: 8.8), PG4 laurate (HLB: 10.3), PG4 isostearate (HLB: 8.2), PG5 laurate (HLB: 10.5), PG6 isostearate (HLB: 10.8), PG4 caprylate (HLB: 14), PG4 caprate (HLB: about 15), PG5 myristate (HLB: 15.4), PG5 stearate (HLB: 15), PG5 oleate (HLB: 12.2), PG6 caprylate (HLB: 14.6), PG6 caprate (HLB: 13.1), PG6 laurate (HLB: 14.1), and mixtures thereof.
Preferably the polyglycerin fatty acid ester is selected from polyglycerin fatty acid diesters.
The HLB value of the polyglycerin fatty acid diester may be 8.0 to 13.0, preferably 9.0 to 12.0, and more preferably 10.0 to 11.0. If two or more polyglyceryl fatty acid diesters are used, the HLB value is determined by a weighted average of the HLB values of all polyglyceryl fatty acid diesters.
The polyglyceryl fatty acid diester may be selected from the group consisting of PG-6 distearate (HLB: 8), PG-6 dioleate (HLB: 9.8), PG-6 didecanoate (HLB: 10.2), and mixtures thereof.
As PG6 dicaprate, for example, sunsoft Q-102H-C sold by Taiyo Kagaku Co., ltd. As PG6 dioleate, sunsoft Q-172H-C sold by Taiyo Kagaku Co.Ltd. As PG6 distearate, emalex DSG-6 sold by Nihon Emulsion Co., ltd.
The amount of polyglycerin fatty acid ester in the composition according to the present invention may be 0.001% by weight or more, preferably 0.005% by weight or more, and more preferably 0.01% by weight or more, relative to the total weight of the composition.
The amount of polyglycerin fatty acid ester in the composition according to the present invention may be 1% by weight or less, preferably 0.5% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the composition, provided that the amount of polyglycerin fatty acid ester is not zero.
The amount of polyglyceryl fatty acid ester in the composition according to the present invention may be from 0.001 to 1 wt%, preferably from 0.005 to 0.5 wt%, and more preferably from 0.01 to 0.1 wt%, relative to the total weight of the composition.
(surfactant)
The composition according to the invention may comprise at least one further surfactant different from the polyglycerin fatty acid ester. If two or more additional surfactants are used, they may be the same or different.
However, it may be preferred that the amount of additional surfactant is small.
The amount of additional surfactant may be 1 wt% or less, preferably 0.5 wt% or less, and more preferably 0.3 wt% or less, relative to the total weight of the composition according to the invention. It is particularly preferred that the composition according to the invention does not comprise further surfactants.
(other Components)
The composition according to the invention may also comprise at least one optional or additional ingredient.
The amount of one or more optional or additional ingredients is not limited, but may be from 0.01 wt% to 30 wt%, preferably from 0.1 wt% to 20 wt%, and more preferably from 1 wt% to 10 wt%, relative to the total weight of the composition according to the invention.
Optionally or additionally one or more ingredients may be selected from anionic, cationic, nonionic or amphoteric polymers; organic or inorganic UV filters; peptides and derivatives thereof; protein hydrolysates; a swelling agent; a penetrant; a thickener; a suspending agent; a chelating agent; a light-shielding agent; a dye; vitamins or provitamins; a fragrance; preservative, auxiliary preservative and stabilizer; and mixtures thereof.
The composition according to the invention may comprise one or several cosmetically acceptable organic solvents, which may be alcohols: in particular monovalent alcohols such as ethanol, isopropanol, benzyl alcohol and phenethyl alcohol; diols such as ethylene glycol, propylene glycol, and butylene glycol; other polyols such as glycerol, sugars and sugar alcohols; and ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether and ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether and propylene glycol monobutyl ether, and butylene glycol monomethyl ether, butylene glycol monoethyl ether and butylene glycol monobutyl ether.
The concentration of the one or more organic solvents may be from 0.01 wt% to 20 wt%, preferably from 0.1 wt% to 15 wt%, and more preferably from 1 wt% to 10 wt%, relative to the total weight of the composition.
The pH of the composition according to the invention can be controlled. The pH may be, for example, 3 to 11, preferably 3.5 to 9, and more preferably 4 to 7. The pH can be adjusted to the desired value using at least one acidifying agent and/or at least one alkalizing agent.
The acidulant may be, for example, an inorganic or organic acid such as hydrochloric acid, orthophosphoric acid, carboxylic acid such as tartaric acid, citric acid, lactic acid or sulphonic acid.
The alkalizing agent may be, for example, ammonium hydroxide, alkali metal hydroxide, alkaline earth metal hydroxide, alkali metal carbonate, alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and their derivatives, preferably sodium hydroxide or potassium hydroxide and compounds of the formula:
wherein the method comprises the steps of
R represents optionally hydroxy or C 1 -C 4 Alkyl-substituted alkylene groups such as propylene, and R 1 、R 2 、R 3 And R is 4 Independently represents a hydrogen atom, an alkyl group or C 1 A C 4 Examples of the "hydroxyalkyl" may include 1, 3-propanediamine and derivatives thereof. Arginine, urea and monoethanolamine may be preferred.
The acidifying or alkalizing agent may be present in an amount of less than 5% by weight, preferably 1% by weight or less, and more preferably 0.1% by weight or less, relative to the total weight of the composition.
(form)
The composition according to the invention may have two visually distinct phases. One of the two phases is an oil phase and the other is an aqueous phase.
The amount of oil phase in the composition according to the invention may be 7% by weight or more, and preferably 15% by weight or more, relative to the total weight of the composition.
The amount of oil phase in the composition according to the invention may be 70% by weight or less, and preferably 65% by weight or less, relative to the total weight of the composition, provided that the amount of oil phase is not zero.
The amount of oil phase in the composition according to the invention may be from 7 to 70% by weight, and preferably from 15 to 65% by weight, relative to the total weight of the composition.
The oil phase in the composition according to the invention may comprise any hydrophobic ingredient in addition to (a) the hydrocarbon oil and optionally the non-volatile oil.
For example, the oil phase of the composition according to the invention may comprise at least one lipophilic or fat-soluble cosmetically active ingredient. A single type of such cosmetic active ingredient may be used in combination, or two or more different types of such cosmetic active ingredients.
The amount of aqueous phase in the composition according to the invention may be 30% by weight or more, and preferably 35% by weight or more, relative to the total weight of the composition.
The amount of aqueous phase in the composition according to the invention may be 93 wt% or less, and preferably 85 wt% or less, relative to the total weight of the composition, provided that the amount of aqueous phase is not zero.
The amount of aqueous phase in the composition according to the invention may be from 30 to 93% by weight, and preferably from 35 to 85% by weight, relative to the total weight of the composition.
The aqueous phase in the composition according to the invention may comprise any hydrophilic component in addition to (b) citrate and (c) water.
For example, the aqueous phase of the composition according to the invention may comprise at least one hydrophilic or water-soluble cosmetically active ingredient. A single type of such cosmetic active ingredient may be used in combination, or two or more different types of such cosmetic active ingredients.
In addition, the aqueous phase may comprise at least one pH adjusting agent such as acids and bases, and/or at least one organic solvent such as glycols.
When mixed, the composition according to the invention may be converted into a single phase composition. The composition according to the invention after mixing may be of the O/W type or of the W/O type, preferably in the form of an O/W or W/O liquid composition, and more preferably in the form of an O/W or W/O emulsion.
The weight ratio of oil phase/water phase may be 50/50 to 5/95, preferably 50/50 to 10/90, and more preferably 50/50 to 15/85.
If the specific gravity of the oil phase is smaller than that of the aqueous phase, in the composition according to the invention the oil phase is present above the aqueous phase. Typically, the oil phase is present on top of the stationary aqueous phase, as the specific gravity of the oil tends to be less than that of water.
[ preparation ]
The composition according to the invention may be prepared by: the oil phase is formed by: providing (a) a hydrocarbon oil or mixing ingredients comprising (a) one or more hydrocarbon oils as an oil phase, forming an aqueous phase by: the ingredients comprising (b) citrate and (c) water are mixed as an aqueous phase and the oil phase and the aqueous phase are combined.
For example, the composition according to the present invention may be prepared by a process comprising:
(i) Providing or mixing
(a) At least one hydrocarbon oil
Forming an oil phase with at least one optional ingredient;
(ii) Mixing
(b) At least one citrate ester; and
(c) Water and its preparation method
Forming an aqueous phase with at least one optional ingredient; and
(iii) The oil phase and the water phase are combined.
The mixing step may be carried out by any conventional method.
The step of combining the oil and water phases is preferably performed gently so that the oil and water phases are slowly poured into a vessel such as a container.
[ use and method ]
When the composition according to the invention is used, it is mixed by shaking (hand shaking) for example by hand. After mixing the composition according to the invention, the composition may form a single phase composition. A single phase composition may be applied to the keratin materials to perform a targeted cosmetic effect.
The keratin materials may be skin, nails, mucous membranes such as lips, or keratin fibers such as eyebrows and eyelashes.
The composition according to the invention may preferably be used as a cosmetic composition, more preferably a cleansing cosmetic composition, and even more preferably a cleansing cosmetic composition for the skin and eyelashes.
The composition according to the invention may provide a cosmetic effect, such as makeup removal.
The composition according to the invention may also provide a good texture, such as a smooth feel, and thus it may provide a smooth skin finish.
The composition according to the invention is comfortable because it is less irritating and it is gentle on the skin, in particular on sensitive skin, for example on the skin around the eyes.
The skin herein includes facial skin, neck skin and scalp. The composition according to the invention may also be applied to mucous membranes, such as the lips.
The composition according to the invention may be used as such (as a topical product) or may be used by impregnation into a porous substrate such as a nonwoven fabric, preferably made of cellulosic fibres such as cotton.
In particular, the composition according to the invention may be intended to be applied to keratin materials such as the skin, the lips, the eyebrows and the eyelashes. Thus, the composition according to the invention can be used in a cosmetic method for keratin materials such as the skin, lips, eyebrows and eyelashes, preferably the skin and eyelashes.
The composition according to the invention can be used for care or cleaning, not for making up keratin materials. Preferably, the composition according to the invention is used in skin care products such as lotions or cleaning products such as make-up removers, rather than in cosmetic products such as foundations. Preferably, the composition according to the invention does not comprise iron oxide or comprises iron oxide in an amount of 0.5 wt% or less, more preferably 0.2 wt% or less, even more preferably 0.1 wt% or less, relative to the total weight of the composition according to the invention.
The cosmetic process for keratin materials according to the invention may comprise at least the following steps
Mixing the composition according to the invention to form a single phase composition; and
the single phase composition is applied to the keratinous material.
Single phase compositions do not have two visually distinct phases. In contrast, single phase compositions have a single phase, which is typically an emulsion phase. The emulsion phase may be opaque, but it may be translucent or opaque.
The invention may relate to:
(a) At least one hydrocarbon oil, and
(b) At least one citrate ester;
use in a two-phase composition comprising an aqueous phase comprising (b) one or more citric acid esters and (c) water, and an oil phase comprising (a) one or more hydrocarbon oils, wherein the amount of (a) one or more hydrocarbon oils in the composition is 6 wt% or more, preferably 7 wt% or more, and more preferably 8 wt% or more, relative to the total weight of the composition, in order to enhance the make-up removability and/or smoothness of the composition.
Examples
The present invention will be described in more detail by way of examples. However, these examples should not be construed as limiting the scope of the invention. The following examples are given as non-limiting illustrations of the field of the invention.
Examples 1 to 2 and comparative examples 1 to 3
The following compositions according to examples 1-2 and comparative examples 1-3 shown in Table 1 were prepared by mixing the ingredients shown in Table 1 below.
(1) Mixing the oil phase (OP in table 1) ingredients at about 25 ℃ to form a homogeneous mixture of oil phase ingredients;
(2) Mixing the aqueous phase (AP in table 1) ingredients at about 60 ℃ to form a homogeneous mixture of aqueous phase ingredients; and
(3) The above aqueous phase components, then the oil phase components, are poured into the package in this order.
It should be noted that "hydroxyacetophenone" refers to 4-hydroxyacetophenone.
The values of the amounts of the components shown in table 1 are all based on "% by weight" as active material.
TABLE 1
OP: oil phase AP: aqueous phase
[ evaluation ]
The compositions according to examples 1-2 and comparative examples 1-3 were evaluated as follows.
(smoothness)
The compositions according to examples 1-2 and comparative examples 1-3 were shaken to form emulsions. 1mL of the emulsion was applied to a cotton pad and the forearms of three panelists were rubbed ten times with the cotton pad. Panelists evaluated the smoothness of the skin after wiping the forearm, with grades 1 (very matte = tacky) to 5 (very smooth), and the scores of the grades were averaged.
The results are shown in Table 1.
(make-up removability)
A mascara product (mabeleline volume' Express Hypercurl Waterproof N01 Black) was applied to the forearms of three panellists. The mascara product was dried for 30 minutes to form a mascara film on the forearm.
The compositions according to examples 1-2 and comparative examples 1-3 were shaken to form emulsions. 1mL of the emulsion was applied to a cotton piece and the cotton piece was placed on the mascara film on the forearm for 10 seconds. Then, the mascara film is wiped once. Panelists rated the make-up removability, using grades 1 (very poor) to 5 (excellent), and the scores of the grades were averaged.
The results are shown in Table 1.
(summary)
Example 1 shows that using a combination of triethyl citrate and isohexadecane in an amount of 6 wt% or more relative to the total weight of the composition according to example 1 can provide good make-up removal efficacy without discomfort, such as tackiness. The two-phase composition according to example 1 was able to convert to a single phase composition when used and was able to revert back to a two-phase composition when not used.
Example 2 shows that the use of a combination of higher amounts of triethyl citrate and isohexadecane can also provide good make-up removal efficacy without discomfort, such as tackiness. The two-phase composition according to example 2 was able to convert to a single phase composition when used and was able to revert back to a two-phase composition when not used.
Comparative example 1 shows that when the amount of isohexadecane is less than 6 wt% relative to the total weight of the composition according to comparative example 1, the makeup removing effect is deteriorated and stickiness is caused.
Comparative example 2 shows that when isohexadecane is not used, the makeup removing effect is more deteriorated and stickiness is caused.
Comparative example 3 shows that when triethyl citrate is not used, the makeup removing effect is more deteriorated and stickiness is caused.
Claims (15)
1. A two-phase composition comprising:
an oil phase comprising (a) at least one hydrocarbon oil; and
an aqueous phase comprising (b) at least one citrate ester, and (c) water,
wherein the method comprises the steps of
The amount of (a) hydrocarbon oil in the composition is 6 wt% or more, preferably 7 wt% or more, and more preferably 8 wt% or more, relative to the total weight of the composition.
2. The composition of claim 1, wherein the composition is capable of being converted to a single phase composition.
3. The composition of claim 2, wherein the single phase composition is capable of being converted to a two phase composition.
4. A composition according to any one of claims 1 to 3, wherein the (a) hydrocarbon oil is a volatile hydrocarbon oil, preferably a volatile branched C 8 -C 16 Hydrocarbon oils, and more preferably are selected from isohexadecane, isodecane, isododecane, and mixtures thereof.
5. The composition of any one of claims 1 to 4, wherein the amount of (a) one or more hydrocarbon oils in the composition is from 6 to 50 wt%, preferably from 7 to 45 wt%, and more preferably from 8 to 40 wt%, relative to the total weight of the composition.
6. The composition of any one of claims 1 to 5, wherein (b) citrate is represented by the following formula (I):
wherein the method comprises the steps of
R 1 、R 2 And R is 3 Independently represents a hydrogen atom, a saturated or unsaturated straight or branched C 1 -C 30 Hydrocarbyl, or saturated or unsaturated cyclic C 3 -C 30 Hydrocarbyl radicals, wherein R 1 、R 2 And R is 3 At least one of which is not a hydrogen atom, and
R 4 represents a hydrogen atom or R' 4 -CO-groups, wherein R' 4 Represents saturated or unsaturated, straight-chain or branched C 1 -C 8 Hydrocarbon radicals, or saturated or unsaturated cyclic C 3 -C 8 A hydrocarbon group.
7. The composition of any one of claims 1 to 6, wherein the (b) citrate is selected from the group consisting of triethyl citrate, tributyl citrate, trioctyl citrate, acetyl triethyl citrate, acetyl tributyl citrate, acetyl tri (2-ethylhexyl) citrate, and mixtures thereof.
8. The composition according to any one of claims 1 to 7, wherein the amount of (b) one or more citric acid esters in the composition is from 0.1 to 10 wt%, preferably from 0.5 to 5 wt%, and more preferably from 1 to 3 wt%, relative to the total weight of the composition.
9. The composition according to any one of claims 1 to 8, wherein the amount of (c) water in the composition is from 30 to 93 wt%, and preferably from 35 to 85 wt%, relative to the total weight of the composition.
10. The composition according to any one of claims 1 to 9, wherein the composition further comprises at least one non-volatile oil that is not (a) a hydrocarbon oil, preferably at least one non-volatile non-polar oil, and more preferably a non-volatile ether oil.
11. The composition according to any one of claims 1 to 10, wherein the composition further comprises a polar oil, such as an ester oil, in an amount of 0.01 to 20 wt%, and preferably 0.1 to 10 wt%, relative to the total weight of the composition.
12. The composition according to any one of claims 1 to 11, wherein the oil phase is present in the composition in an amount of from 7 to 70% by weight, and preferably from 15 to 65% by weight, relative to the total weight of the composition.
13. The composition according to any one of claims 1 to 12, wherein the amount of the aqueous phase in the composition is from 30 to 93 wt% and preferably from 35 to 85 wt% relative to the total weight of the composition.
14. The composition according to any one of claims 1 to 13, wherein the composition is a cosmetic composition, preferably a cleansing cosmetic composition, and more preferably a cleansing cosmetic composition for skin and eyelashes.
15. A cosmetic method for keratin materials, comprising:
mixing the composition of any one of claims 1 to 14 to form a single phase composition; and
the single phase composition is applied to keratin materials.
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| FR2011131 | 2020-10-30 | ||
| PCT/JP2021/035219 WO2022065461A1 (en) | 2020-09-28 | 2021-09-17 | Two-phase composition comprising at least one hydrocarbon oil and at least one ester of citric acid, wherein the composition is preferably a cleansing composition. |
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