JP2021098667A - Gelatinous oil-based cosmetics - Google Patents

Abstract

To provide gelatinous oil-based cosmetics that have a unique resilience feeling, show a smooth and light feeling with no stickiness at the time of application, and give a glossy finish.SOLUTION: Gelatinous oil-based cosmetics contain (A) an organopolysiloxane coupled with a poly(N-acylalkyleneimine) segment composed of a repeating unit represented by general formula (1) (R1 is a hydrogen atom or a C1-3 alkyl group, t is 2 or 3), (B) silicone oil that is liquid at 25°C, and (C) powder. The mass ratio of the component (A) to the component (B) (A)/(B) is 0.08 or more. The content of (D) wax is less than 2 mass%.SELECTED DRAWING: None

Description

The present invention relates to gelled oily cosmetics.

Conventionally, it has been studied to use various silicone oils and polymers in combination in order to obtain a cosmetic having a good feeling of use such as spreading at the time of application and excellent makeup durability.
For example, in Patent Document 1, an oil-based cosmetic containing an organopolysiloxane, a non-volatile silicone, a powder, and a wax to which a poly (N-acylalkyleneimine) segment is bonded is spread on the skin when applied. It is described that it is good, suppresses unevenness and powderiness after application, and obtains a glossy finish without a feeling of dryness.
Further, Patent Document 2 is unique in a gel-like cosmetic containing a graft copolymer of a poly (N-acylalkyleneimine) chain and an organosiloxane chain, a low-viscosity silicone oil, and an organically modified clay mineral. It is described that it imparts elasticity, spreads well, and has excellent cosmetic durability and stability.
On the other hand, as a recent cosmetic trend, cosmetics with a distinctive look and feel that have never been seen before, conscious of word-of-mouth such as SNS, have been developed, and various new products have been put on the market.

Japanese Unexamined Patent Publication No. 2015-124147 JP-A-2009-256235

However, the oil-based foundation disclosed in the examples of Patent Document 1 was cooled and hardened at room temperature, and the obtained oil-based foundation was not much different from the conventional oil-based solid cosmetics. In addition, the heavy feel and stickiness peculiar to oil-based solid cosmetics may still remain.
Further, the gel-like cosmetics of Patent Document 2 are very soft and have elasticity like whipped cream, but are not easy to use because they are towed when the agent is taken. In addition, although it has a feeling of elasticity, it is very soft, so that the container is twisted during actual use and the appearance is not beautiful, and the container to be filled is limited. Further, while a light and smooth feel can be obtained, the moist feel may be slightly insufficient.
The present inventors have examined a cosmetic having a new feel that has never existed before, and further obtained a heavy feel, stickiness, and sufficient luster when applied, which was insufficient with the conventional cosmetic. The study was conducted to solve the problems that there is no such thing, the container is limited, and the surface of the cosmetic is not beautiful even during use.

The present inventors disperse a specific poly (N-acylalkyleneimine) -modified organopolysiloxane in a silicone oil at a specific ratio, combine it with a powder, and set the wax content to less than 2% by mass. As a result, it has a peculiar elasticity of Punipuni, and when applied, it feels light and smooth, does not get sticky on the skin, gives a glossy finish, and can be filled in a container of your choice. , It has been found that a gel-like oily cosmetic can be obtained in which the surface of the cosmetic is kept beautiful during actual use.

In the present invention, the following components (A), (B) and (C):
(A) The following general formula (1)

(In the formula, R ¹ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and t represents 2 or 3).
It is an organopolysiloxane formed by binding poly (N-acylalkyleneimine) segments consisting of repeating units represented by.
The poly (N-acylalkyleneimine) segment has a number average molecular weight of 500 to 4000 and
The mass ratio (a / b) of the organopolysiloxane segment (a) constituting the main chain and the poly (N-acylalkyleneimine) segment (b) is 80/20 to 99/1.
The weight average molecular weight of the organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments is 5000-40,000.
Organopolysiloxane, which has a weight average molecular weight of 1500 to 20000, of the organopolysiloxane segment constituting the main chain.
(B) Silicone oil liquid at 25 ° C,
(C) Contains powder, and the mass ratio (A) / (B) of the component (A) to the component (B) is 0.08 or more.
(D) The present invention relates to a gelled oily cosmetic having a wax content of less than 2% by mass.

The gel-like oily cosmetic of the present invention has a peculiar elasticity of Punipuni, has a light feel when applied, is not sticky or stuck, and has a glossy finish after application, resulting in a moist feel. It is also excellent in storage stability. Furthermore, it can be filled in a container of your choice and the surface of the cosmetic can be kept beautiful during actual use.

The component (A) used in the present invention has the following general formula (1);

(In the formula, R ¹ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and t represents 2 or 3).
It is an organopolysiloxane formed by binding poly (N-acylalkyleneimine) segments consisting of repeating units represented by.
The poly (N-acylalkyleneimine) segment has a number average molecular weight of 500 to 4000 and
The mass ratio (a / b) of the organopolysiloxane segment (a) constituting the main chain and the poly (N-acylalkyleneimine) segment (b) is 80/20 to 99/1.
The weight average molecular weight of the organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments is 5000-40,000.
It is an organopolysiloxane having a weight average molecular weight of 1500 to 20000 of the organopolysiloxane segment constituting the main chain.
It has been newly found in the present invention that a structure exhibiting elastic properties can be obtained by using the component together with the component (B).

The poly (N-acylalkyleneimine) segment is bonded to any silicon atom constituting the organopolysiloxane segment via an alkylene group containing a hetero atom. Further, it is preferable that the organopolysiloxane segment is bonded to one or more silicon atoms excluding both ends via the alkylene group, and is bonded to two or more silicon atoms excluding both ends via the alkylene group. Is more preferable. That is, the organopolysiloxane of the component (A) is a graft polymer having a poly (N-acylalkyleneimine) segment consisting of at least two or more repeating units represented by the general formula (1) as a side chain. is there.

The alkylene group containing the heteroatom functions as a linking group for the poly (N-acylalkyleneimine) segment. Examples of such an alkylene group include an alkylene group having 1 to 2 carbon atoms containing 1 to 3 nitrogen atoms, oxygen atoms or sulfur atoms, and among them, they are represented by any of the following formulas (i) to (vii). The group represented by the following formula (i) or (ii) is more preferable, and the group represented by the following formula (i) is more preferable. In the formula, An ^- represents a counter ion of the quaternary ammonium salts, for example, ethyl sulfate ion, methyl sulfate ion, chloride ion, iodide ion, sulfate ion, p- toluenesulfonate ion, perchlorate ion Is exemplified.

In the N-acylalkyleneimine unit constituting the poly (N-acylalkyleneimine) segment, in the general formula (1), ^{the alkyl group having 1 to 3 carbon atoms in R 1} is, for example, a direct group having 1 to 3 carbon atoms. A chain alkyl group or a branched alkyl group having 3 carbon atoms is exemplified, and specific examples thereof include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group.

In the general formula (1), t represents a number of 2 or 3, and is preferably 2 from the viewpoint of obtaining a raw material at the time of producing an organopolysiloxane.

The mass ratio (a / b) is in the range of 80/20 to 99/1, is excellent in adhesion to the skin, and is preferably 83/17 to 98/2 from the viewpoint of forming a gel structure with the component (B). , More preferably 90/10 to 97/3.
In the present specification, the mass ratio (a / b) is determined by dissolving 5% by mass of the organopolysiloxane of the component (A) in heavy chloroform and ^{analyzing the organopolysiloxane by nuclear magnetic resonance (1} H-NMR) analysis. A value obtained from the integral ratio of the alkyl group or phenyl group in the segment and the methylene group in the poly (N-acylalkyleneimine) segment.

In the organopolysiloxane of the component (A), the weight average molecular weight (hereinafter, also simply referred to as “MWg”) of the organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments is in the range of 5,000 to 40,000. From the viewpoint of the flexibility of the coating film of the cosmetic, 1000 to 35000 is preferable, and 1500 to 32000 is more preferable.

In the present specification, the “organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments” refers to the organopolysiloxane of the poly (N-acylalkyleneimine) segment as shown in the following formula (2). A portion surrounded by a broken line between two points from the bond point (bond point A) to the segment to the bond point (bond point B) of the poly (N-acylalkyleneimine) segment adjacent thereto, and is one. A segment composed of ^{R 2} SiO units, one R ³ and y + 1 (R ² ) _{2 SiO units.} The “poly (N-acylalkyleneimine) segment” refers to −Z—R ^{4 that binds to R 3 above.}

In the above general formula (2), R ² independently represents an alkyl group or a phenyl group having 1 to 22 carbon atoms, R ³ represents an alkylene group containing a heteroatom, and -Z-R ⁴ represents a poly (N-). (Acylalkyleneimine) segment, R ⁴ indicates the residue of the polymerization initiator, and y indicates a positive number.

MWg is the molecular weight of the portion surrounded by a broken line in the above general formula (2), but can be understood as the mass (g / mol) of the organopolysiloxane segment per mole of the poly (N-acylalkyleneimine) segment. Can be done. When the functional group of the modified organopolysiloxane, which is a raw material compound, is 100% substituted with poly (N-acylalkyleneimine), it matches the functional group equivalent (g / mol) of the modified organopolysiloxane.

The molecular weight of the poly (N-acylalkyleneimine) segment is calculated from the molecular weight and degree of polymerization of the N-acylalkyleneimine unit, or is measured by gel permeation chromatography (hereinafter, also simply referred to as “GPC”). be able to. In the present invention, it refers to a polystyrene-equivalent number average molecular weight (hereinafter, also simply referred to as “MNox”) measured by GPC measurement performed under the measurement conditions described below. From the viewpoint of the flexibility of the coating film of the cosmetic, MNox is preferably in the range of 500 to 4000, more preferably 800 to 3500, and even more preferably 1000 to 3000.

Further, the MWg can be determined by the following formula (I) using the content (mass%) of the organopolysiloxane segment constituting the main chain (hereinafter, also simply referred to as “Csi”).
MWg = Csi x MNox / (100-Csi) (I)

The weight average molecular weight (hereinafter, also simply referred to as “MWsi”) of the organopolysiloxane segment constituting the main chain is 1500 to 20000, and is preferably 50,000 from the viewpoint of the flexibility of the cosmetic coating film and the adhesion to the skin. It is ~ 170000, more preferably 70,000 ~ 150,000. Since the organopolysiloxane segment constituting the main chain has the same skeleton as the modified organopolysiloxane which is the raw material compound, MWsi is substantially the same as the weight average molecular weight of the modified organopolysiloxane which is the raw material compound. The weight average molecular weight of the modified organopolysiloxane, which is a raw material compound, is measured by GPC under the measurement conditions described below and converted to polystyrene.

The weight average molecular weight of the organopolysiloxane of the component (A) (hereinafter, also simply referred to as “MWt”) is preferably 1500 to 20000, more preferably 50,000 to 170000, and even more preferably, from the viewpoint of excellent adhesion to the skin. It is 70,000 to 150,000. MWt is a value measured by gel permeation chromatography (GPC) under the measurement conditions described below and converted into polystyrene.

The organopolysiloxane of the component (A) can be produced by a known method such as the method disclosed in JP-A-2009-256235.
That is, the following general formula (3)

(In the formula, R ² has the same meaning as described above, and R ⁵ and R ⁶ each ^{have the same group as R 2} , or the following formulas (viii) to (xiii).

Indicates a monovalent group represented by any ^{of the above, R 7} represents a monovalent group represented by the above formulas (viii) to (xiii), and d indicates a number of 91.5 to 1255.0. , E indicates a number from 2.0 to 62.5)
Modified organopolysiloxane represented by and the following general formula (4)

(In the formula, R ¹ and t have the same meaning as above)
It is produced by reacting a cyclic imino ether represented by (N) with a terminal reactive poly (N-acylalkyleneimine) obtained by ring-opening polymerization.

Examples of the organopolysiloxane of the component (A) include poly (N-formylethyleneimine) organosiloxane, poly (N-acetylethyleneimine) organosiloxane, and poly (N-propionylethyleneimine) organosiloxane.

As the component (A), one type or two or more types can be used, and the content is 3% by mass or more in the total composition from the viewpoint of easy formation of a gel structure and a punipuni elastic feeling. It is preferably 4% by mass or more, more preferably 10% by mass or less, and more preferably 9% by mass or less. The content of the component (A) is preferably 3 to 10% by mass, more preferably 4 to 9% by mass in the total composition.

The component (B) used in the present invention is a silicone oil that is liquid at 25 ° C. The liquid has fluidity, and includes cream and paste.
Further, the component (B) may be either volatile or non-volatile, but it realizes a glossy finish and is affected by the process even if there is a heating process when producing the cosmetic of the present invention. Non-volatile ones are preferable because they are difficult to receive.
Non-volatile means that 1 g of an oil agent is spread on a glass petri dish having a diameter of 48 mm, and the weight loss rate after being left at 25 ° C. and normal pressure for 24 hours is 1% or less.

Examples of the silicone oil of the component (B) include dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; polyether-modified silicone, alkyl-modified silicone, higher fatty acid ester-modified silicone, higher alkoxy-modified silicone, and fluorine-modified silicone. , Modified silicone oil such as crosslinked organopolysiloxane.
Of these, from the viewpoint of solubility with the component (A), good spreadability of the obtained gel, and usability, those having a viscosity at 25 ° C. of 5 cs or more are preferable, and dimethylpoly having a viscosity at 25 ° C. of 5 cs or more. Siloxane is more preferable, and 20 cs or less is preferable.

As the component (B), one kind or two or more kinds can be used, and the content is 20 mass in the whole composition from the viewpoint of obtaining a light feel, a glossy finish, and a peculiar elasticity feeling of Punipuni. % Or more is preferable, 30% by mass or more is more preferable, 80% by mass or less is preferable, and 70% by mass or less is more preferable. The content of the component (B) is preferably 20 to 80% by mass, more preferably 30 to 70% by mass in the total composition.

In the present invention, the mass ratio (A) / (B) of the component (A) to the component (B) is 0.08 or more, preferably 0.09 or more, from the viewpoint of obtaining a peculiar elasticity feeling as Punipuni. , 0.12 or less, more preferably 0.11 or less. The mass ratio (A) / (B) of the component (A) to the component (B) is 0.08 or more, preferably 0.08 to 0.12, and more preferably 0.09 to 0.11. ..

The powder of the component (C) may be any powder used in ordinary cosmetics, and any of plate-shaped powder, spherical powder and the like can be used.
As the component (C), it is preferable to include a plate-like powder from the viewpoint of obtaining a peculiar elasticity feeling of Punipuni.
The plate-shaped powder refers to a flat shape having an aspect ratio (long side / thickness) of 10 or more, and the planar shape may be circular, rectangular, amorphous, or the like. The aspect ratio is preferably 20 to 100, more preferably 30 to 70.

Specific examples of the plate powder include silicic acid, magnesium silicate, silica, talc, sericite, kaolin, bismuth oxychloride, cerium oxide, calcium sulfate, barium sulfate, magnesium sulfate, and mica (muscovite, black mica). Natural or synthetic inorganic powders such as gold muscovite, synthetic muscovite), plate-like alumina powder; organic powders such as N-mono long-chain acyl basic amino acid, zinc monoalkyl phosphate and the like.
Further, a composite powder obtained by coating the surface of the plate-shaped powder with a metal oxide such as titanium dioxide, iron oxide, or silicic anhydride can also be used. Specific examples of the composite powder include titanium oxide-coated mica, iron oxide-coated mica, red iron oxide-coated mica titanium, titanium oxide-coated glass powder, and the like.
As plate-like powder, talc, biotite (white mica, biotite, phlogopite, synthetic mica), titanium oxide from the viewpoint of obtaining a peculiar elasticity to the skin, adhesion to the skin, and no squeaky feeling. Coated mica, iron oxide-coated mica, Bengala-coated mica titanium, and titanium oxide-coated glass powder are preferable.

The plate-shaped powder preferably has an average particle size of 2 to 120 μm from the viewpoint of a glossy finish that gives a peculiar elasticity to Punipuni.
In the present invention, the particle size of the powder is measured by an electron microscope observation and a particle size distribution measuring machine by a laser diffraction / scattering method. Specifically, in the case of the laser diffraction / scattering method, measurement is performed with a laser diffraction / scattering type particle size distribution measuring device (for example, LA-920 manufactured by HORIBA, Ltd.) using ethanol as a dispersion medium.

As the plate-shaped powder, one type or two or more types can be used, and the content is preferably 10% by mass or more, preferably 20% by mass, in the total composition from the viewpoint of obtaining a peculiar elasticity feeling as Punipuni. % Or more is more preferable, 60% by mass or less is preferable, and 50% by mass or less is more preferable. The content of the plate-like powder is preferably 10 to 60% by mass, more preferably 20 to 50% by mass in the total composition.

Further, among the powders of the component (C), the "spherical" in the spherical powder does not have to be a true sphere as long as it has a property of suppressing specular reflection and / or diffuse reflection, and is, for example, substantially spherical. It may be a spheroid, a spherical powder having an uneven surface, or the like. Specifically, it is preferable that the sphericality given by {(area of a circle corresponding to the maximum particle size in the particle projection image) / (particle projection area)} × 100 is 100 to 120.

The spherical powder is preferably water-insoluble and oil-insoluble. The spherical powder may be a composite powder composed of a plurality of powders, and is, for example, coated, encapsulated, and colored with a coloring pigment, a dye, a dye, a metal ion, or the like by a usual method. You may.
The spherical powder may be either an inorganic spherical powder or an organic spherical powder. The spherical powder preferably has a refractive index of 2.0 or less, more preferably 1.3 to 2.0, and even more preferably 1.4 to 1.8. The spherical powder preferably has an average particle size of 1 to 20 μm.

Specific examples of the spherical powder include spherical anhydrous silicic acid, spherical cellulose powder, spherical polymethyl methacrylate, spherical nylon powder, spherical polyethylene powder, spherical polystyrene powder, spherical silicone powder, and spherical methylsiloxane reticulated weight. Coalescence and the like can be mentioned.

Further, as the powder of the component (C), for example, organic coloring pigments such as Red No. 201, Red No. 202, Red No. 226, Yellow No. 401, and Blue No. 404 and laked ones thereof; natural pigments, red iron oxide, etc. Examples thereof include inorganic powders such as yellow iron oxide, black iron oxide, ultramarine blue, dark blue, titanium oxide, fine particle titanium oxide, zinc oxide, fine particle zinc oxide, zirconium oxide, manganese violet, carbon black, chromium oxide, and barium sulfate.

The powder of the component (C) can be used as it is, or can be hydrophobized before use. The hydrophobization treatment is not limited as long as it is a treatment applied to ordinary cosmetic powders, and is not limited to silicone treatment, fatty acid treatment, lauroyl lysine treatment, lecithin treatment, N-acyl amino acid treatment, metal soap treatment, and fluorine. Examples include compound treatment.

As the component (C), one type or two or more types can be used, and the content is preferably 10% by mass or more, preferably 20% by mass, in the total composition from the viewpoint of obtaining a peculiar elasticity feeling as Punipuni. % Or more is more preferable, 60% by mass or less is preferable, and 50% by mass or less is more preferable. The content of the component (C) is preferably 10 to 60% by mass, more preferably 20 to 50% by mass in the total composition.

In the present invention, the mass ratio (A) / (C) of the component (A) to the component (C) is preferably 0.04 or more, preferably 0.08, from the viewpoint of obtaining a peculiar elasticity feeling of Punipuni. The above is more preferable, 1.2 or less is preferable, and 1.1 or less is more preferable. The mass ratio (A) / (C) of the component (A) to the component (C) is preferably 0.04 to 1.2, more preferably 0.08 to 1.1.

The gelled oily cosmetic of the present invention has a (D) wax content of less than 2% by mass.
Wax is an oily component that is solid at 25 ° C. For example, vegetable waxes such as candelilla wax, rice wax, sunflower wax, carnauba wax, and wood wax; animal waxes such as beeswax and whale wax; montan wax, ozokerite. Mineral waxes such as paraffin, petroleum waxes such as selecin; glycerin fatty acid esters such as glyceryl tribechenate (tribehenin), (bechenic acid / isostearic acid / eicosandiic acid) glyceryl; synthesis of Fisher Tropsch wax, polyethylene wax, etc. Hydrocarbons can be mentioned.
As the wax of the component (D), paraffin, selecin, and glyceryl tribechenate are preferable from the viewpoint of stability, which gives a peculiar elasticity to Punipuni.

As the component (D), one kind or two or more kinds can be used, and the content is less than 2% by mass in the total composition from the viewpoint of stability, which gives a peculiar elasticity feeling as Punipuni, but 1 9.9% by mass or less is preferable, and 0.1% by mass or more is preferable. The content of the component (D) is less than 2% by mass in the total composition, preferably 0.1 to 1.9% by mass.

The gel-like oily cosmetic of the present invention can further contain (E) a liquid ester oil at 25 ° C., and can further improve the moist feeling.
The ester oil is not limited as long as it is used in ordinary cosmetics, and for example, isononyl isononanoate, isodecil isononanoate, isotorideyl isononanoate, tricyclodecanemethyl isononanoate, hexyl laurate, and octyldodecyl malate. , 2-ethylhexarate 2-hexylhexyl 2-hexylhexyl 2-ethylhexanate, cetyl ethylhexanate, isopropyl myristate, isocetyl myristate, 2-hexyldecyl myristate, octyldodecyl myristate, isopropyl palmitate, 2 palmitate -Monester oils such as ethylhexyl, ethyl isostearate, isopropyl isostearate, isobutyl isostearate, 2-hexyldecyl isostearate, 2-ethylhexyl hydroxystearate, octyl methoxycinnamate, propylene carbonate; di2-hetylhexyl succinate , Bisethoxydiglycol succinate, di (capric acid / capric acid) propanediol, neopentyl glycol diisononanoate, neopentyl glycol dicaprate, glyceryl diisostearate, polyglyceryl diisostearate, propanediol diisostearate, diisostearyl malate, Diester oils such as di (phytosteryl / octyldodecyl) lauroyl glutamate, neopentyl glycol di2-ethylhexanoate, neopentyl glycol dioctanoate; trimethylolpropane triisostearate, glyceryl triisostearate, diglyceryl triisostearate, jojoba oil , Trimethylolpropane tri2-hetylhexanoate, glyceryl tri2-ethylhexanoate, glyceryl tri (capril / capric acid), glyceryl trioctanoate, tritridecyl trimeritoate and other triester oils; diglyceryl tetraisostearate, tetraisostearic acid Examples thereof include dipentaerythrityl and pentaerythrit tetraisostearate.
Of these, isononyl isononanoate, isodecil isononanoate, cetyl ethylcaproate, and isocetyl myristate are preferable from the viewpoint of moist feel.

The ester oil of the component (E) can be used alone or in combination of two or more, and the content is 0.1% by mass or more in the total composition from the viewpoint of moist feeling. Preferably, 0.5% by mass or more is more preferable, 8% by mass or less is preferable, and 5% by mass or less is more preferable. The content of the component (E) is preferably 0.1 to 8% by mass, more preferably 0.5 to 8% by mass in the total composition.

In the present invention, the mass ratio (E) / (B) of the component (E) to the component (B) is preferably 0.01 or more, more preferably 0.05 or more, from the viewpoint of a light and smooth feel. , 0.2 or less, more preferably 0.1 or less. The mass ratio (E) / (B) of the component (E) to the component (B) is preferably 0.01 to 0.2, more preferably 0.05 to 0.1.

In the present invention, the content of ethanol is preferably 1% by mass or less, more preferably 0.5% by mass or less, and 0.1% by mass in the total composition from the viewpoint of obtaining a peculiar elasticity of Punipuni. % Or less is more preferable, and it is further preferable not to contain it.

In the present invention, the water content is preferably 1% by mass or less, more preferably 0.5% by mass or less, and more preferably 0.1% by mass or less in the total composition from the viewpoint of stability. It is more preferable not to contain it.

In addition to the above-mentioned components, the gel-like oily cosmetics of the present invention include components used in ordinary cosmetics, such as oil-based components other than the above, polymers other than the above, polyhydric alcohols, preservatives, antioxidants, pigments, and the like. It can contain thickeners, pH regulators, fragrances, UV absorbers, moisturizers, blood circulation promoters, cold sensitizers, antiperspirants, bactericides, skin activators and the like.
In the present invention, from the viewpoint of usability, it is preferable that the surfactant and the polymer dispersant are not contained so much, and specifically, it is preferably 2% by mass or less in the total composition, and 1% by mass. The following is more preferable, 0.5% by mass or less is further preferable, and it is further preferable that the content is not contained.

In the gelled oily cosmetic of the present invention, for example, the components (A) and (B) are mixed to prepare a gel, and the obtained gel is mixed with other components including the component (C). Can be manufactured.
The gel-like oily cosmetic of the present invention is solid at 25 ° C. and has a feeling of elasticity.
The gel-like and elastic feeling in the present invention can be defined by the needle-insertion hardness.
Here, in the present invention, the "needle-insertion hardness" means that the jig has a diameter of 10 mm, a table speed of 60 mm / s, and a depth of the jig at 30 ° C. using a leometer manufactured by Sun Scientific Co., Ltd. The maximum value when the needle is inserted up to 3 mm is converted per unit area. When this measurement is repeated 5 times, the hardness of the needle at the time of the first measurement is 30 to 140, and the gel-like cosmetic is obtained.
In addition, the ratio of the needle insertion hardness measured the first time to the needle insertion hardness measured the fifth time, (first needle insertion hardness) / (fifth needle insertion hardness) is 1 to 2. It has the elasticity peculiar to the invention. This results in a dosage form cosmetic that has a new feel that is different from conventional fluid creams and hard solids.

The gel-like oily cosmetic of the present invention can be a make-up cosmetic such as foundation, lipstick, blusher, and eye shadow.

Synthesis example 1
2.63 g (0.036 mol) of 2-ethyl-2-oxazoline and 8.46 g of ethyl acetate are mixed, and the mixed solution is 0.6 g of molecular sieve (Zeolam A-4, manufactured by Tosoh Corporation) at 28 ° C.15. Time dehydration was performed.
Further, 100 g of side chain primary aminopropyl-modified polydimethylsiloxane (KF-8015, manufactured by Shinetsu Silicone Co., Ltd., weight average molecular weight 100,000, amine equivalent 20000) and 203 g of ethyl acetate were mixed, and the mixed solution was prepared with 15.2 g of molecular sieve. Dehydration was performed at 28 ° C. for 15 hours.
To the above dehydrated 2-ethyl-2-oxazoline in ethyl acetate solution, 0.54 g (0.0035 mol) of diethyl sulfate was added, and the mixture was heated under reflux at 80 ° C. for 8 hours under a nitrogen atmosphere to carry out terminal reactive poly (N-propionyl). Ethylimine) was synthesized. The number average molecular weight measured by GPC was 1200 g / mol.
This terminal-reactive poly (N-propionylethyleneimine) solution was collectively added with the above-mentioned dehydrated side chain primary aminopropyl-modified polydimethylsiloxane solution, and the mixture was heated under reflux at 80 ° C. for 10 hours.
The reaction mixture was concentrated under reduced pressure to give an N-propionylethyleneimine-dimethylsiloxane copolymer as a white rubbery solid (102 g). In the final product, the mass ratio (a) / (b) of the organopolysiloxane segment (a) constituting the main chain to the poly (N-acylalkyleneimine) segment (b) is 96/4, and the final product. The weight average molecular weight of was 104000.

In this synthesis example, various molecular weights were measured according to the following measurement conditions.
<Measurement conditions for weight average molecular weight of modified organopolysiloxane>
Column: Super HZ4000 + Super HZ2000 (manufactured by Tosoh)
Eluent: 1 mM triethylamine / THF
Flow rate: 0.35 mL / min
Column temperature: 40 ° C
Detector: UV
Sample: 50 μL

<Measurement conditions for MNox and MWt>
Column: K-804L (manufactured by Tosoh Co., Ltd.) Used by connecting two in series.
Eluent: 1 mM dimethyldodecylamine / chloroform Flow rate: 1.0 mL / min
Column temperature: 40 ° C
Detector: RI
Sample: 50 μL

^{1 1} H-NMR measurement for calculating the mass ratio (a / b) was carried out under the following conditions.
< ^{1 1} H-NMR measurement conditions>
The composition of the obtained polymer ^{was confirmed by 1} H-NMR (manufactured by 400 MHz Varian).
A sample amount of 0.5 g dissolved in 2 g of a measuring solvent (deuterated chloroform) was measured.
PULSE SEQUENCE
・ Relax.delay: 30 seconds ・ Pulse: 45degrees
・ Number of integrations: 8 times Confirmation peak around 0ppm: Methyl group of polydimethylsiloxane,
Around 3.4ppm: Methylene portion of ethyleneimine.
The ratio of silicone to poly (N-propionylethyleneimine) was calculated from each integral value.

Examples 1 to 7, Comparative Examples 1 to 4
We manufacture gel-like oily cosmetics with the composition shown in Table 1, and produce a gel-like oily cosmetic with a punipuni elasticity, lack of stringiness, a light feel, a moist feel, a non-sticky finish, a glossy finish, temperature stability, and makeup. The surface condition and elasticity of the material were evaluated. The results are also shown in Table 1.

(Production method)
A gel is prepared by mixing the components (A) and (B), and other components including the component (C) are added to the obtained gel, heated to 70 to 80 ° C., and 10 with a disper or a homomixer. Stir for minutes. This was defoamed, filled in a container, and allowed to cool to room temperature to obtain a gel-like oily cosmetic.

(Evaluation method)
(1) Punipuni elasticity:
The feel of the gel-like cosmetics filled in the container when touched with a finger was evaluated according to the following criteria. The evaluation was carried out by five specialized panelists, and the results were combined.
5; Elastic.
4; Slightly elastic.
3; Normal.
2; Not very elastic.
1; Not elastic.

(2) Lack of threading:
The lack of stringiness when the gel-like cosmetics filled in the container was touched with a finger was evaluated according to the following criteria. The evaluation was carried out by five specialized panelists, and the results were combined.
5; There is no threading property.
4; There is almost no threading property.
3; Normal.
2; There is some threading property.
1; Has stringability.

(3) Light and light feel:
The smooth and light feel of the gel-like cosmetics filled in the container when applied to the eyelids was evaluated according to the following criteria. The evaluation was carried out by five specialized panelists, and the results were combined.
5; There is lightness.
4; Somewhat light.
3; Normal.
2; Not a little light.
1; There is no lightness.

(4) Moist feel:
The moist feeling when the gel-like cosmetics filled in the container was applied to the eyelids was evaluated according to the following criteria. The evaluation was carried out by five specialized panelists, and the results were combined.
5; Moist.
4; Slightly moist.
3; Normal.
2; Not very moist.
1; Not moist.

(5) Non-sticky:
The non-stickiness when the gel-like cosmetics filled in the container was applied to the eyelids was evaluated according to the following criteria. The evaluation was carried out by five specialized panelists, and the results were combined.
5; No stickiness.
4; There is no stickiness.
3; Normal.
2; Slightly sticky.
1; Sticky.

(6) Glossy finish:
The finish when the gel-like cosmetics filled in the container was applied to the eyelids was evaluated according to the following criteria. The evaluation was carried out by five specialized panelists, and the results were combined.
5; Glossy.
4; Slightly glossy.
3; Normal.
2; Slightly dull.
1; There is no gloss.

(7) Temperature stability:
A gold plate was filled with 2 g of a gel-like cosmetic and stored at 40 ° C. for 1 month, and then the appearance was visually evaluated.
〇; No change.
Δ: Unevenness occurs on the surface.
×; Separation of liquid on the surface.

(8) Surface condition of cosmetics:
After touching the gel-like cosmetic with a finger to cause unevenness, the state after standing for one day was observed.
◯: The unevenness after touching is smooth and beautiful.
Δ: The unevenness after touching is slightly left and slightly beautiful.
X: Unevenness after touching remains and is dirty.

(9) Elasticity:
For each cosmetic, the needle-insertion hardness was measured 5 times each with a rheometer manufactured by Sun Scientific Co., Ltd. The results of the 1st and 5th times are shown. When the hardness of the first needle insertion is 300 or more, it is in a solid state.
In addition, the ratio of the hardness of the first needle insertion to the fifth time (1st / 5th) was determined. The closer this value is to "1.0", the higher the feeling of elasticity in the present invention.

Claims (7)

The following components (A), (B) and (C):
(A) The following general formula (1)

(In the formula, R ¹ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and t represents 2 or 3).
It is an organopolysiloxane formed by binding poly (N-acylalkyleneimine) segments consisting of repeating units represented by.
The poly (N-acylalkyleneimine) segment has a number average molecular weight of 500 to 4000 and
The mass ratio (a / b) of the organopolysiloxane segment (a) constituting the main chain and the poly (N-acylalkyleneimine) segment (b) is 80/20 to 99/1.
The weight average molecular weight of the organopolysiloxane segment between adjacent poly (N-acylalkyleneimine) segments is 5000-40,000.
Organopolysiloxane, which has a weight average molecular weight of 1500 to 20000, of the organopolysiloxane segment constituting the main chain.
(B) Silicone oil liquid at 25 ° C,
(C) Contains powder, and the mass ratio (A) / (B) of the component (A) to the component (B) is 0.08 or more.
(D) A gel-like oily cosmetic having a wax content of less than 2% by mass. (E) The gel-like oily cosmetic according to claim 1, which contains an ester oil that is liquid at 25 ° C. The gelled oily cosmetic according to claim 1 or 2, wherein the mass ratio (A) / (C) of the component (A) to the component (C) is 0.04 to 1.2. The gel-like oily cosmetic according to any one of claims 1 to 3, wherein the component (C) contains a plate-like powder. The gelled oily cosmetic according to any one of claims 1 to 4, wherein the content of ethanol is 1% by mass or less. The gelled oily cosmetic according to any one of claims 1 to 5, wherein the water content is 1% by mass or less. Any of claims 1 to 6, wherein a gel is prepared by mixing the components (A) and (B), and other components including the component (C) are added to the obtained gel and mixed. The method for producing a gel-like oily cosmetic according to item 1.