WO2018062724A1 - Oil-in-water type makeup cosmetic composition - Google Patents

Abstract

The present invention relates to an oil-in-water type makeup cosmetic composition including a water phase and an oil phase, wherein the water phase comprises polyurethane and inorganic powder coated with a hydrophilic coating agent.

Description

Oil-in-water makeup cosmetic composition

The present invention relates to an oil-in-water makeup cosmetic composition.

This application claims the benefit of the filing date of Korean Patent Application No. 10-2016-0126692 filed with the Korean Intellectual Property Office on September 30, 2016, the entire contents of which are incorporated herein.

The oil-in-water make-up cosmetics that have dispersed the oil phase in the awards of the continuous merchants are preferred by consumers because of their excellent initial moisture and applicability.However, they are not widely used as makeup cosmetics because they have a long lasting effect after applying cosmetics and have a dry finish. have.

In the past, attempts were made to increase the oil content of oil-in-water cosmetic compositions using polyurethane-based thickeners, but additional emulsifiers or surfactants were needed to stabilize the formulation, and there was a limit to increasing the oil content. In the case of a makeup cosmetic composition, there was a problem in that the phase of the formulation was separated due to the colorant contained essentially.

In addition, the conventional makeup cosmetics containing a hydrophilic oil-in-water emulsifier had a disadvantage that the lasting power is poorly erased by water or sweat.

Accordingly, there has been a demand for development of an oil-in-water cosmetic composition having excellent sustainability without phase separation of the formulation due to the colorant without containing an emulsifier and a surfactant.

The present invention seeks to provide a makeup cosmetic in a stable formulation, using polyurethane as a thickener, without the need for additional emulsifiers or surfactants, having a high volume of oil content.

The present invention provides an oil-in-water makeup cosmetic composition comprising an aqueous phase and an oil phase, wherein the aqueous phase provides an oil-in-water makeup cosmetic composition comprising an inorganic powder and a polyurethane coated with a hydrophilic coating agent.

The oil-in-water makeup cosmetic composition according to the present invention contains a polyurethane as a thickener in the water phase, and does not require an additional emulsifier or a surfactant, and has a high volume of oil content, thereby providing excellent initial moisture and good applicability. The finish is not dry but excellent in durability, and the oil can enhance the shine and moisture. In addition, the phase separation due to the colorant does not occur, the stability of the formulation is excellent.

Hereinafter, the oil-in-water makeup cosmetic composition according to the present invention will be described in detail.

Names of compounds mentioned in this specification, unless stated otherwise, are listed in the International Cosmetic Ingredient Dictionary (ICID) published by the Cosmetic, Toiletry and Fragrance Association (CTFA), INCI (International Nomenclature Cosmetic). Ingredient) means a compound corresponding to the name, and if the name does not exist among INCI Names, it means a compound according to the IUPAC nomenclature established by the International Union of Pure and Applied Chemistry (IUPAC). In the absence of a compound according to the IUPAC nomenclature, a compound corresponding to the name of a compound commonly used in the art.

In the present specification, the oil in water (O / W) type means an emulsion formulation in which the continuous phase is an aqueous phase and the dispersed phase is an oil phase.

In the present specification, an emulsion formulation refers to a formulation in which a dispersed phase including one or more liquid phases in a continuous phase including one or more liquid phases is dispersed in the form of droplets.

Awards

In one embodiment according to the invention, the water phase comprises water and the water phase comprises a hydrophilic substance dissolved in water.

Inorganic Powder Coated with Hydrophilic Coating

The aqueous phase according to the present invention comprises an inorganic powder coated with a hydrophilic coating agent.

In one embodiment of the present invention, the hydrophilic coating agent is one containing at least one of silica and cellulose.

In one embodiment of the present invention, the content of the hydrophilic coating agent is 2 to 15% by weight based on the total weight of the inorganic powder. If less than 2% by weight, the coating of the hydrophilic coating agent on the inorganic powder is not uniform as a whole, the effect of the hydrophilic coating is inadequate, when more than 15% by weight, the coloring effect of the inorganic powder is lowered to a greater There is a drawback that inorganic powders are required.

In an exemplary embodiment of the present invention, the content of the inorganic powder coated with the hydrophilic coating agent is 0.01 wt% to 10 wt% with respect to the total weight of the composition. When the content of the inorganic powder coated with the hydrophilic coating agent is less than 0.01% by weight, the color development effect is insufficient to function as a makeup cosmetic, when more than 10% by weight, the stability of the formulation is lowered.

In one embodiment of the present invention, the inorganic powder coated with the hydrophilic coating agent can be prepared by a method known in the art, the method is not particularly limited. In general, precursors capable of forming a hydrophilic coating layer after dispersing the inorganic powder (for example, in the case of a silica layer, are added with tetraethoxysilane and heat-treated for 1 to 6 hours at a temperature of 50 to 400 ° C. The inorganic pigment surface can be treated with silica.

In one embodiment of the present invention, the inorganic powder is not particularly limited as long as it can implement color development as a colorant.

In one embodiment of the present invention, the inorganic powder may be titanium oxide, yellow iron oxide, red iron oxide or black iron oxide.

As the inorganic powder, it is preferable to use a mixture of titanium oxide and yellow, red or black iron oxide.

In one embodiment of the present invention, the average particle diameter of the inorganic powder is 200 nm to 600 nm. When the average particle diameter of the inorganic powder is less than 200 nm, the color development effect is insignificant, and when the average particle diameter is more than 600 nm, the feeling of grain becomes rough and the feeling of use deteriorates.

Polyurethane

The water phase according to the invention comprises a polyurethane.

In one embodiment of the present invention, the polyurethane is an ethoxylate-based urethane.

In one embodiment of the present invention, the ethoxylate-based urethane is an isophorone diisocyanate (IPDI) -based compound.

In one embodiment of the present invention, the isophorone diisocyanate compound is a compound represented by the following formula (1).

[Formula 1]

In Chemical Formula 1, n is 50 to 120, preferably 75 to 100, more preferably 75 or 100, and R is independently an alkyl group having 12 to 24 carbon atoms or an alke having 12 to 24 carbon atoms. It is a nil group, Preferably it is a C12-C24 alkyl group, More preferably, it is a C18 alkyl group.

In one embodiment of the present invention, the isophorone diisocyanate compound is disteares-75 IPDI or disteares-100 IPDI.

In one embodiment according to the invention, the polyurethane is 0.1% by weight to 10% by weight relative to the total weight of the composition. If it is less than 0.1% by weight, the effect as a thickener does not appear, and if it is more than 10% by weight, the hardness of the formulation of the composition is increased, resulting in deterioration of the usability, such as flowability and dullness.

Paid

In one embodiment according to the invention, the oil phase comprises an oil, the oil phase comprises a lipophilic substance dissolved in oil.

oil

In the present specification, "oil" refers to a substance in which a phase or phase is separated from an aqueous phase in which all or a part of the oil includes water when mixed with water in a state of normal temperature and normal pressure. In the present invention, as long as the oil meets this definition and does not impair the intended effect of the present invention, the oil is not particularly limited, but specific examples thereof will be described as follows.

In one embodiment of the present invention, the oil is at least one selected from the group consisting of hydrocarbon oil, ester oil, diester oil, triglyceride oil, carbonate oil, alcohol oil and silicone oil. .

In one embodiment of the present invention, the hydrocarbon-based oil is any selected from the group consisting of squalene, hydrogenated polyisobutene, hydrogenated poly (C6-14 olefin), hydrogenated polydecene, paraffin, ceresin and microcrystalline wax. Is more than one.

In one embodiment of the present invention, the ester oil is triethylhexanoin, cetylethylhexanoate, cetyloctanoate, cetylisooctanoate, octyldodecyl myristate, isopropyl palmitate, isopropyl myridine State, Butyleneglycol Dicaprylate / Dicaprate, Tocopherol Acetate, Coco-Caprylate / Caprate, Jojoba Seed Oil, Dicaprylic Carbonate, Pentaerythritol Tetraethylhexanoate and Pentaerythritol Tetraisostearate At least one selected from the group consisting of.

In one embodiment of the present invention, the diester oil is butylene glycol dicaprylate, dicaprate, diisostearyl malate, di-C12-13 alkyl malate, neopentyl glycol diheptanoate, tridecyl stearate At least one selected from the group consisting of latex, naerpentyl glycol dicaprylate / dicaprate, tridecyl trimellitate and dicapriryl carbonate.

In one embodiment of the present invention, the carbonate oil is dialkyl carbonate.

In one embodiment of the present invention, the triglyceride oil is selected from the group consisting of caprylic / capric triglycerides, caprylic / capric / stearic triglycerides, triethyloctanoin and tricapryline Being more than one.

In one embodiment of the present invention, the alcohol oil is in the group consisting of octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleyl alcohol and isostearyl alcohol One or more selected.

In one embodiment of the present invention, the silicone oil is dimethicone, cyclomethicone, polydimethylsiloxane, methylphenylpolysiloxane, methylcyclopolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, At least one selected from the group consisting of tetradecamethylhexasiloxane and octamethyltrisiloxane.

In one embodiment of the present invention, the amount of oil is 0.01% by weight to 50% by weight relative to the total weight of the composition. If the content of the liquid phase is less than 0.01% by weight, the moisturizing and gloss effect by the oil is inadequate, and if more than 50% by weight, the formulation is not stabilized by polyurethane alone without an additional emulsifier.

In one embodiment of the present invention, the formulation of the composition may be, for example, supported on a sponge.

The sponge may be a natural sponge or a synthetic sponge, and the natural sponge may be, for example, a sponge sponge or a natural rubber sponge. In addition, the synthetic sponge is, for example, foamed urethane foam, butadiene rubber (BR), styrene-butadiene rubber (SBR), NR (Natural Rubber), chloroprene rubber (CR), isoprene-isobutylene rubber (IIR) , Isoprene rubber (IR), vulcanized ethylene-propylene rubber (EPR), polysulfide rubber, silicone rubber, fluororubber, urethane rubber, acrylic rubber ), EPDM (Ethylene propylene diene monomer) rubber, polyvinyl alcohol (PVA), nitrile rubber (Nitrile rubber) and ethylene vinyl acetate (EVA) may include one or more selected from the group consisting of. When the composition is supported on the sponge, dispersion stability in which the aqueous phase component and the oil phase component are not separated is increased.

In addition, the composition according to the present invention may include other ingredients in addition to the above-mentioned materials within a range not impairing the main effect, preferably a synergistic effect on the main effect. In addition, the composition according to the present invention may further include a moisturizer, an emulsifier, a UV absorber, a preservative, a fungicide, an antioxidant, a pH adjuster, a flavoring agent, a cooling agent or a restricting agent. The compounding quantity of the said component can be selected easily by a person skilled in the art within the range which does not impair the objective and effect of this invention.

The present invention provides the use of an oil-in-water cosmetic composition containing i) an inorganic powder coated with a hydrophilic coating agent and ii) a polyurethane as a thickener in the manufacture of a cosmetic composition or cosmetic, in particular a cosmetic composition or cosmetic for makeup. .

Hereinafter, the configuration and effects of the present invention will be described in more detail with reference to Examples and Test Examples. However, these examples and test examples are only intended to describe the present invention in detail, and the scope of the present invention is not limited by these examples and test examples.

< Production Example > Underwater Type Makeup Cosmetic  Produce

Examples 1 to 3 according to the steps described later by the composition described in Table 1 and Table 2 And the oil-in-water makeup cosmetics of Comparative Examples 1 to 4 were prepared.

ingredient		Comparative Example 1	Comparative Example 2	Example 1
Paid	Butylene Glycol Dicaprylate / Dicaprate	5.00	10.00	10.00
	Di-C12-13 alkylmaleate	5.00	10.00	10.00
	C12-15 Alkylbenzoate	5.00	10.00	10.00
	Phenyltrimethicone	3.00	5.00	5.00
	Cyclopentasiloxane	3.00	5.00	5.00
	Cetearyl Alcohol	1.20	1.20	-
	Glyceryl Stearate	1.00	1.00	-
	Fiji-100 Stearate	1.00	1.00	-
Awards	Titanium oxide coated with silica 1 )	2.00	2.00	2.00
	Silica red iron oxide (iron oxide) 2 )	0.02	0.02	0.02
	Purified water	Remaining amount	Remaining amount	Remaining amount
	glycerin	5.00	5.00	5.00
	Butylene Glycol	10.00	10.00	10.00
	Phenoxyethanol	Quantity	Quantity	Quantity
	Disteareth-100 IPpedia	-	-	2.50
	Polyacrylate-13, polyisobutene, polysorbate 20, sorbitan isostearate	1.00	1.00	-

1) Coating titanium oxide using silica in an amount of 10% by weight based on the weight of titanium oxide / Sympholight WW (JGC C & C)

2) Coating iron oxide using silica in an amount of 12% by weight, based on the weight of iron oxide / Sympholight RW (JGC C & C)

ingredient		Comparative Example 3	Comparative Example 4	Example 2	Example 3
Paid	Butylene Glycol Dicaprylate / Dicaprate	10.00	10.00	10.00	10.00
	Di-C12-13 alkylmaleate	10.00	10.00	10.00	10.00
	C12-15 Alkylbenzoate	10.00	10.00	10.00	10.00
	Phenyltrimethicone	5.00	5.00	5.00	5.00
	Cyclopentasiloxane	5.00	5.00	5.00	5.00
	Titanium oxide coated with alkylsilane 3)	5.00	-	-	-
	Iron oxide coated with alkylsilane 4 )	0.05	-	-	-
Awards	Titanium oxide	-	5.00	-	-
	Iron oxide	-	0.05	-	-
	Titanium oxide coated with silica 5 )	-	-	5.00	-
	Red iron oxide coated with silica 6 )	-	-	0.05	-
	Titanium oxide coated with cellulose 7 )	-	-	-	5.00
	Cellulose coated iron oxide 8 )	-	-	-	0.05
	Purified water	Remaining amount	Remaining amount	Remaining amount	Remaining amount
	glycerin	5.00	5.00	5.00	5.00
	Butylene Glycol	10.00	10.00	10.00	10.00
	Phenoxyethanol	Quantity	Quantity	Quantity	Quantity
	Disteareth-100 IPpedia	2.50	2.50	2.50	2.50

3) Coating titanium oxide using alkylsilane in an amount of 2% by weight, based on the weight of titanium oxide / OTS TiO ₂ CR-50 (Daito Kasei)

4) Coating iron oxide using alkylsilane in an amount of 2% by weight, based on the weight of iron oxide / OTS-2 RED R-516L (Daito Kasei)

5) Coating titanium oxide using silica in an amount of 10% by weight, based on the weight of titanium oxide / Sympholight WW (JGC C & C)

6) Coating iron oxide using silica in an amount of 12% by weight, based on the weight of iron oxide / Sympholight RW (JGC C & C)

7) Coating titanium oxide using cellulose in an amount of 5% by weight, based on the weight of titanium oxide / C2-5 TiO ₂ CR-50 (Daito Kasei)

8) Coating iron oxide using cellulose in an amount of 5% by weight, based on the weight of iron oxide / C2-5 RED R-516P (Daito Kasei)

① by mixing the components contained in the oil phase at 75 ℃ in the composition ratio of Table 1 to prepare an oil phase dispersion.

② In a separate container, the components contained in the water phase were mixed at 70 ° C. to prepare an aqueous solution, and the colorant was mixed and dispersed in the aqueous solution.

③ The oily dispersion of step ① was added to the aqueous solution of step ② and stirred and mixed with a homomixer.

(4) After cooling temperature was set to about 30 ° C., complete degassing to prepare an oil-in-water makeup cosmetic composition.

Test Example 1 Formulation Stability Comparison

In order to confirm the formulation stability of the makeup cosmetic composition according to the present invention, taking the composition of Examples 1 to 3 and Comparative Examples 1 to 4 each 10g, 4 ° C low temperature thermostat, 30 ° C thermostat, 45 ° C After placing the samples in a cycle chamber circulating a high temperature thermostat, -10 ° C to 45 ° C for 24 hours, the change of the formulation was observed and the stability was confirmed according to the criteria of the lower limit, and the results are shown in Table 3 below.

(Stability evaluation standard)

O: Stable with no modification of the formulation.

(Triangle | delta): A pigment | dye generate | occur | produces in a formulation, and the dispersion stability of a formulation falls.

X: The oil and water phases in the formulation are separated and the formulation is very unstable.

Test Items	4 ℃	30 ℃	45 ℃	cycle
Comparative Example 1	O	O	O	O
Comparative Example 2	△	△	X	X
Example 1	O	O	O	O
Comparative Example 3	X	△	X	X
Comparative Example 4	△	△	△	△
Example 2	O	O	O	O
Example 3	O	O	△	O

In Table 3, in the case of Comparative Example 2 it can be confirmed that a large amount of the oil in the inner phase is not stable emulsified poor stability of the formulation.

Comparative Example 1 can be confirmed that the formulation is stable while the oil content is small, but Example 1 using polyurethane as a thickener can be confirmed that the stability even when containing a high content of oil.

In addition, when comparing the stability according to the coating type of the inorganic powder, in the case of Comparative Example 3 using the inorganic powder coated with lipophilic alkylsilane, it was observed that the emulsification immediately under severe conditions, the inorganic coating is not hydrophilic weak due to uncoated In the comparative example 4 which disperse | distributed the powder in the water phase, dispersion stability fell and the pigment | dye band was observed. In the case of Examples 1 to 3 in which the inorganic powder coated with hydrophilic cellulose or silica is dispersed in the aqueous phase, it can be confirmed that the stability is excellent.

Test Example 2 Evaluation of Skin Moisturizing Power

In order to determine the skin moisturizing power at the time of one application, 20 adult women in their 20s and 30s were applied to the makeup cosmetic compositions of Example 1 and Comparative Example 1 on the inside of the face and the forearm, respectively, and then used for a period of 8 hours. Skin moisture content was measured using a corneometer (CM820 courage Khazaka electronic GmbH, Germany). Before the start of the application, the skin moisture content was measured in advance by using a conniometer at constant temperature and humidity conditions (24 ° C., 40% humidity), and the change was measured immediately after application, after 4 hours and 8 hours. The results are shown in Table 4 below.

<Measurement of Koniometer>

Principle: Moisture is measured by measuring the amount of moisture in the skin's epidermis using a sensor and quantifying the amount of moisture.

Test substance	Skin moisture content (%)
	Before application	Immediately after application	1 hour later	4 hours later	8 hours later
Example 1	58	71	69	69	67
Comparative Example 1	59	74	65	63	60

In Table 4, Comparative Example 1 was found to have a high water content immediately after application because the content of the water phase component is more, it can be confirmed that the water content is sharply reduced after 1 hour, the makeup cosmetic of Example 1 according to the present invention The composition has a high oil content and exhibits a closing effect that prevents the applied aqueous phase component from evaporating, so that the skin moisturizing power lasts more than 8 hours.

<Test Example 3> Evaluation of Skin Moisturizing / Glossy

A survey was conducted on 20 women in their 20's and 40's for moisturizing and shine after applying the makeup cosmetic compositions of Example 1 and Comparative Example 1. The average values of the evaluated values (five-point scale) are shown in the following table. 5 is shown.

	I feel moisture	Glossy is felt
Example 1	4.2	4.8
Comparative Example 1	3.9	3.1
<Evaluation Criteria> 5 points: very effective 4 points: slightly effective 3 points: normal 2 points: almost ineffective 1 point: no effect

In Table 5, it can be seen that the makeup cosmetic composition of Example 1 according to the present invention exhibits excellent moisturizing and glossiness by stabilizing a high content of oil.

Claims (7)

1. An oil-in-water makeup cosmetic composition comprising an aqueous phase and an oil phase,

   The water phase is an oil-in-water makeup cosmetic composition comprising an inorganic powder and a polyurethane coated with a hydrophilic coating agent.
2. The method of claim 1,

   The hydrophilic coating agent is any one or more of silica and cellulose, oil-in-water makeup cosmetic composition.
3. The method of claim 1,

   The amount of the hydrophilic coating agent is 2 to 15% by weight based on the total weight of the inorganic powder, oil-in-water makeup cosmetic composition.
4. The method of claim 1,

   The content of the inorganic powder coated with the hydrophilic coating agent is 0.01 to 10% by weight based on the total weight of the composition, oil-in-water makeup cosmetic composition.
5. The method of claim 1,

   The polyurethane is an ethoxylate-based urethane, oil-in-water makeup cosmetic composition.
6. The method of claim 1,

   The polyurethane is an oil-in-water makeup cosmetic composition, based on the total weight of the composition, 0.1% to 10% by weight.
7. The method of claim 1,

   The cosmetic composition is for skin moisturizing, oil-in-water makeup cosmetic composition.