Primer for applied body correction film and method of use
A primer with oil-absorbing particles addresses the issue of cosmetic component migration in film-forming agents, enhancing the appearance and uniformity of body correction films by absorbing excess oil, thus improving the final film quality.
Patent Information
- Application Number
- JP2022541444
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-08-07
- Filing Date
- 2021-07-26
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2041-07-26
AI Technical Summary
Existing film-forming agents applied over makeup cosmetics suffer from poor appearance due to migration and mixing of cosmetic components, leading to defects in the final film.
A primer containing oil-absorbing particles is applied to the makeup cosmetic layer to absorb excess oil, preventing the migration of pigments and other components, thereby improving the appearance of the final film.
The primer reduces or prevents defects in the final body correction film by absorbing excess oil, ensuring a smoother and more uniform application of the film-forming agent.
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Abstract
Description
[Technical Field]
[0001] FIELD OF THE DISCLOSURE The present disclosure relates to primers for paint-on body correcting coatings and methods of use thereof. [Background technology]
[0002] BACKGROUND ART There are known topical film-forming agents that can be applied to the body surface to form a film that can correct wrinkles, scars, and the like.
[0003] Patent Document 1 discloses a formulation for application to skin, comprising: a) a reactive component including (i) at least one high-viscosity vinyl-terminated organopolysiloxane having a viscosity of 100,000 to 500,000 cst or cP at 25°C, at least one low-viscosity vinyl-terminated organopolysiloxane having a viscosity of 500 to 50,000 cst or cP at 25°C, and at least one hydride-functionalized polysiloxane; and (ii) a reactive reinforcing component including a reinforcing component; and b) a crosslinking component including a catalyst; wherein the crosslinking component promotes crosslinking of the reactive reinforcing component in situ, resulting in the formation of a film on the skin. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Patent No. 6105468 Summary of the Invention [Problem to be solved by the invention]
[0005] A spreadable film-forming agent may be applied directly to the body surface, or may be applied after applying a makeup cosmetic such as foundation to the body surface. In particular, in the latter case, components such as oils and pigments in the makeup cosmetic may migrate into the applied film-forming agent. As a result, the makeup cosmetic may peel off from the area where the film-forming agent is applied, or components such as pigments in the makeup cosmetic may be mixed into the film-forming agent as foreign matter, which may cause a poor appearance of the final film.
[0006] Therefore, the subject of the present disclosure is to provide a base agent for a spreadable body correction film that can reduce or prevent defects such as poor appearance of the final body correction film, even if a makeup cosmetic or the like is applied to the body surface and then a body correction film forming agent is applied on top of it. [Means for solving the problem]
[0007] <Aspect 1> A primer for a spreadable body correction film, which contains oil-absorbing particles and has oil-absorbing properties. <Aspect 2> 2. The primer according to claim 1, wherein the oil-absorbing particles are particles of at least one material selected from the group consisting of silica, perlite, boron nitride, magnesium carbonate, magnesium hydroxide, kaolin, talc, mica, polyamide resin, and (meth)acrylic resin. <Aspect 3> 3. The primer of claim 1, further comprising at least one selected from the group consisting of plate-like particles and oils. <Aspect 4> The base according to any one of Aspects 1 to 3, which is in the form of a cake. <Aspect 5> An aqueous dispersion cosmetic comprising the base agent according to any one of aspects 1 to 3. <Aspect 6> A sheet-like cosmetic comprising a sheet-like substrate and a layer of the foundation agent according to any one of Aspects 1 to 3 laminated on the sheet-like substrate in a transferable manner. <Aspect 7> A foundation according to any one of aspects 1 to 4, an aqueous dispersion cosmetic according to aspect 5, or a sheet-like cosmetic according to aspect 6, and A body correction film-forming agent that can be applied to the body A kit comprising: <Aspect 8> The body correction film-forming agent is a first part comprising a polymer A composed of an unsaturated organopolysiloxane and a polymer B composed of a hydride-functionalized polysiloxane; and a second agent containing a catalyst that promotes crosslinking of the polymer A and the polymer B; Including, The first agent and the second agent are contained in separate containers, or are contained separately in each compartment of a container having two or more compartments. 8. The kit according to embodiment 7. <Aspect 9> After applying a makeup cosmetic to a body surface, a base layer is formed by applying the base agent according to any one of aspects 1 to 4, the aqueous dispersion cosmetic according to aspect 5, or the sheet-like cosmetic according to aspect 6 to the surface to which the makeup cosmetic has been applied, and Applying a body correcting film-forming agent to the base layer; Beauty method. [Effects of the Invention]
[0008] According to the present disclosure, it is possible to provide a base agent for a spreadable body correction film that can reduce or prevent defects such as poor appearance of the final body correction film, even if a makeup cosmetic or the like is applied to the body surface and then a body correction film forming agent is applied on top of it. [Brief explanation of the drawings]
[0009] [Figure 1](a) is a schematic diagram of makeup cosmetics applied to the skin, (b-1) is a schematic diagram of a state in which a base agent for a spread-type body correction film according to one embodiment of the present disclosure has been applied onto a makeup cosmetic layer, (b-2) is a photograph showing this state, (c-1) is a schematic diagram of a state in which a body correction film has been applied onto the base layer, and (c-2) is a photograph showing this state. [Figure 2] (a) is a photograph of the configuration of Example 1 in which a base is applied on top of the makeup cosmetic and then a body correcting film-forming agent is applied on top of that, and (b) is a photograph of the configuration of Comparative Example 1 in which the body correcting film-forming agent is applied directly on top of the makeup cosmetic layer.
[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present disclosure is not limited to the following embodiments, and various modifications can be made within the scope of the present invention.
[0011] The primer for a paint-on body correction film of the present disclosure contains oil-absorbing particles, and the primer itself exhibits oil-absorbing properties.
[0012] Although not limited by the principle, it is believed that the principle of action of the base agent for the applied body correction film of the present disclosure (sometimes simply referred to as a "base agent") can reduce or prevent defects such as poor appearance of the final body correction film (sometimes simply referred to as a "film"), even if a makeup cosmetic or the like is applied to the body surface and then a body correction film forming agent is applied on top of it, is as follows.
[0013] Makeup cosmetics such as foundation contain ingredients such as water, oil, and pigments, blended appropriately depending on the intended use of the cosmetics. Of these ingredients, water dries out relatively quickly after the cosmetics are spread on the skin, whereas oil typically remains in the applied cosmetics because it is less likely to dry than water. Furthermore, even if an oil-free cosmetic, such as an aqueous cosmetic, is applied to the body and the water evaporates to form a cosmetic layer consisting only of pigment powder, the cosmetic layer may absorb sebum exuded from the skin and become oily. When a body-correcting film-forming agent (sometimes simply referred to as a "film-forming agent") is spread on such an oil-containing cosmetic layer, the pigments and other components in the cosmetic mix with the components (e.g., oil) of the film-forming agent and become contaminated with the film-forming agent as foreign matter. This is thought to result in defects such as poor appearance in the final film, as shown in Figure 2(b).
[0014] The primer of the present disclosure contains oil-absorbing particles so that the primer itself is oil-absorbent, and it is believed that when such a primer is applied to a cosmetic layer to form a primer layer, the oil-absorbing particles contained in the primer absorb excess oil in the cosmetic layer, turning the cosmetic layer into a solidified state, as shown in Figure 1(b). As a result, even when the film-forming agent is spread, migration of pigments and other components in the cosmetic layer to the film-forming agent is reduced, which is believed to reduce or prevent defects such as poor appearance in the final film.
[0015] The definitions of terms used in this disclosure are as follows:
[0016] In the present disclosure, a "body correction coating" refers to a coating that is intended to provide a natural skin appearance when applied to a subject's skin. Here, "natural skin appearance" means that when applied to the skin, the body correction coating will provide similar or identical performance to at least one of the appearance, feel, and texture of real skin, e.g., the treated skin may provide the physical properties (e.g., elasticity and firmness) of real (e.g., natural) skin.
[0017] In this disclosure, "body correction" refers to masking, concealing, or covering a subject's body imperfections or skin imperfections to visually and / or tactilely improve the body or skin imperfections, but does not include methods of surgery, treatment, or diagnosis of humans. Here, "body imperfections" can refer to, for example, those parts of a subject's body that a subject perceives as a blemish or flaw, or that a person skilled in the art, such as a dermatologist, aesthetician, or plastic surgeon, would consider to be a blemish or flaw. "Body imperfections" include skin imperfections and loose soft tissues of the body (e.g., loose or sagging skin, looseness of the breasts, buttocks, abdomen, chin, neck, etc.). "Skin imperfections" also include those items of a subject's skin that a subject perceives as a blemish or flaw. Examples of skin imperfections include nevus flammeus or nevus flame (e.g., hemangioma simplex or midline nevus flammeus), melasma, wrinkles, age spots, acne, moles, scars, tattoos, birthmarks, skin deformities, birthmarks, sun damage, aging, uneven skin tone, loose skin, rough skin, hyperpigmentation, enlarged pores, telangiectasia, redness, shine, cellulite, stretch marks, or loss of skin elasticity.
[0018] In this disclosure, "viscosity" refers to a measure of the resistance of a fluid to being deformed by either shear stress or tensile stress. For example, the viscosity of the first and second parts of a body-correcting film-forming agent affects the thickness, spreadability, and uniformity and / or evenness of the layer formed on a substrate. Viscosity can be measured as dynamic viscosity (also known as absolute viscosity, typical units are Pa·s, poise, P, cP) or kinematic viscosity (typical units are cm 2Kinematic viscosity can be reported either as kinematic viscosity (kinematic viscosity in s, s / s, Stokes, St, or cst), where kinematic viscosity is dynamic viscosity divided by the density of the measured fluid. Viscosity ranges for components disclosed herein are generally provided by each component supplier in units of kinematic viscosity (e.g., cst) measured using a rheometer or a Cannon-Fenske tube viscometer, although fluid viscosity can also be measured using, for example, a rheometer (e.g., a linear shear rheometer or a dynamic shear rheometer) or a viscometer (viscometer, also called a capillary viscometer or rotational viscometer).
[0019] In the present disclosure, "crosslinking" also encompasses the concept generally referred to as "curing."
[0020] In this disclosure, "body surface" means the skin surface of the body.
[0021] <<Primer for applied body correction coating>> The primer of the present disclosure itself has oil-absorbing properties.
[0022] The oil absorption capacity of the primer is not particularly limited and can be adjusted as needed depending on factors such as the amount of oil in the cosmetic to be applied to the skin, the average amount of sebum produced by adults in the summer, and the type of body-correcting film-forming agent. For example, the oil absorption capacity of the primer can be set to 75 mL / 100 g or more, preferably 100 mL / 100 g or more, from the viewpoint of preventing poor appearance of the film. Furthermore, as the oil absorption capacity of the primer increases, oil in the cosmetic can be absorbed, forming liquid bridges between particles such as oil-absorbing particles and pigment particles, and between the particles and the skin. This liquid bridge can also improve the adhesive strength between layers and between the cosmetic layer and the skin. There is no particular upper limit to the oil absorption capacity of the primer, but from the viewpoint of uniformity in the cosmetic finish, it can be set to, for example, 300 mL / 100 g or less, more preferably 250 mL / 100 g or less.
[0023] Here, the oil absorption of the primer is the amount measured by the rub-out method. In the rub-out method, 1 to 5 g of sample is placed on a glass plate (approximately 250 mm x approximately 250 mm x approximately 5 mm), and squalane is dropped into the center of the sample in small amounts from a burette, and the sample is kneaded with a spatula each time. The dropping and kneading process is repeated until the entire sample first comes together into a single rod, which is the end point. The amount of squalane is then determined, and the oil absorption is calculated using the following formula A: Oil absorption (ml / 100g) = {Squalane (ml) x 100} / sample (g) ...Equation A
[0024] In some embodiments, a makeup cosmetic layer such as a foundation is present below the base layer prepared by applying the base agent of the present disclosure. In order to avoid reducing the color of the makeup cosmetic layer, the components constituting the base layer are preferably transparent.
[0025] In some embodiments, the primer of the present disclosure can achieve a rating of C, B, or A in the appearance test described below, which evaluates the appearance of a coating.
[0026] In some embodiments, the primer of the present disclosure has a color difference (ΔE ) of 4.5 or less, 4.0 or less, 3.5 or less, or 3.0 or less in the color difference test described below that evaluates the appearance of a coating. * ab ) can be achieved. * ab The lower limit of ) is not particularly limited, but can be, for example, greater than 0, 0.1 or greater, or 0.5 or greater.
[0027] <Oil-absorbing particles> The primer of the present disclosure contains oil-absorbing particles. The oil absorption capacity, blending amount, and type of the oil-absorbing particles are not particularly limited as long as they can make the primer oil-absorbent.
[0028] The oil absorption capacity of the oil-absorbing particles can be, for example, 50 mL / 100 g or more, 100 mL / 100 g or more, or 150 mL / 100 g or more, and more preferably 200 mL / 100 g or more. There is no particular upper limit to the oil absorption capacity of the oil-absorbing particles, but from the viewpoint of uniformity in the finish of the cosmetic, it can be, for example, 500 mL / 100 g or less, 450 mL / 100 g or less, or 400 mL / 100 g or less.
[0029] The oil absorption of oil-absorbing particles can be measured in accordance with JIS-K5101. Specifically, boiled linseed oil is added to the sample while kneading until the entire sample forms a lump. The oil absorption is expressed as the volume (mL) of boiled linseed oil per 100 g of sample when the entire sample forms a lump.
[0030] The amount of oil-absorbing particles may be, for example, 15% by mass or more, 20% by mass or more, 30% by mass or more, 40% by mass or more, 50% by mass or more, 60% by mass or more, 70% by mass or more, or 80% by mass or more relative to the total amount of the primer. There is no particular upper limit to the amount of oil-absorbing particles, and it may be, for example, 100% by mass or less, less than 100% by mass, 95% by mass or less, or 90% by mass or less.
[0031] The oil-absorbing particles may be inorganic or organic particles, and may be surface-treated. Examples of oil-absorbing particles include at least one type of particle selected from silica, perlite, boron nitride, magnesium carbonate, magnesium hydroxide, kaolin, talc, mica, polyamide resin, (meth)acrylic resin, and metal soap powder. Among these, silica is preferred from the viewpoints of oil absorption, transparency, and affinity with film-forming agents and / or cosmetics. The oil-absorbing particles may be used alone or in combination of two or more types.
[0032] The shape of the oil-absorbing particles is not particularly limited, and examples thereof include spherical and plate-like. Plate-like particles can improve the adhesion of the particles to the skin. Here, "plate-like" can also include shapes known as scale-like and flat. The oil-absorbing particles may be particles of the same shape, or spherical particles and plate-like particles may be used in combination. From the viewpoints of oil absorbency and adhesion of the particles to the skin, it is preferable to use spherical oil-absorbing particles and plate-like oil-absorbing particles in combination.
[0033] As shown in Figure 1(c), the oil-absorbing particles are thought to gather on the cosmetic layer to form an uneven base layer, which is thought to act as an anchor and contribute to the adhesion of the film.
[0034] <Optional ingredients> The primer of the present disclosure can be appropriately blended with various components as long as they do not affect the effects of the present disclosure. Examples of such optional components include particles other than the above-mentioned oil-absorbing particles (e.g., spherical or plate-shaped inorganic or organic particles), oils, feel-adjusting agents, coating agents (e.g., silicone-based coating agents, fluorine-based coating agents), binders, anti-fading agents, UV absorbers, preservatives, colorants (e.g., pigments, dyes, colorants), etc. The optional components can be used alone or in combination of two or more.
[0035] Among the optional components, the use of plate-like particles is advantageous because it can improve the adhesion of the particles to the skin. Examples of such plate-like particles that can be used include butter-processed mica particles.
[0036] The use of oil is also advantageous because it can, for example, bind loose spherical oil-absorbing particles with plate-like particles to form granules from primary particles to secondary particles. The oil can be blended in an appropriate amount so that the primer can exhibit oil-absorbing properties.
[0037] The oil is not particularly limited, and examples thereof include liquid oils, solid oils, waxes, hydrocarbon oils, silicone oils, polar oils, etc. The oils may be used alone or in combination of two or more. Among them, silicone oils are preferred from the viewpoints of, for example, affinity with oil-absorbing particles and granulation ability into secondary particles.
[0038] Examples of silicone oils that can be used include linear silicones such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, and methylhydrogenpolysiloxane; and cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. Among these, dimethylpolysiloxane (dimethicone) is preferred. Primers containing dimethylpolysiloxane have excellent affinity with cosmetics and body correction films, thereby improving the adhesion between them.
[0039] In some embodiments, a coloring material may be blended into the base agent to provide a foundation-like function. In this case, the application of makeup cosmetics can be omitted. However, this configuration may prevent the user from using their preferred makeup cosmetics, and may limit the range of cosmetic options. Therefore, it is preferable to not use a coloring material in the base agent so as not to change the color tone of the makeup cosmetics located below the base layer. Furthermore, since the base agent of the present disclosure has excellent oil absorption properties and can absorb oils such as sebum, applying the base agent directly to the skin may excessively absorb oils from the skin and dry out the skin. Therefore, from the perspective of preventing skin dryness, it is preferable to apply the base agent on top of the makeup cosmetics layer.
[0040] <How to use the primer> The form of the primer to be used is not particularly limited, and various forms of use can be adopted. For example, a powder form such as that called loose powder or a cake form such as that called pressed powder can be adopted, but from the viewpoint of usability, a cake form prepared using oil or the like is preferred.
[0041] (Aqueous dispersion cosmetic) Alternatively, the primer may be used as an aqueous dispersion cosmetic, prepared by mixing it with an aqueous dispersion medium. While such an aqueous dispersion cosmetic itself does not have oil absorption properties, when the cosmetic is applied to the skin and dried, the components constituting the primer contained in the cosmetic remain on the skin, thereby exhibiting the aforementioned oil absorption properties. The oil absorption capacity of the primer in the aqueous dispersion cosmetic can be determined by the method described above after drying to remove moisture. Here, the moisture content of the primer after drying can be 10% by mass or less, 5% by mass or less, 1% by mass or less, or 0.5% by mass or less, based on the total weight of the primer.
[0042] There are no particular limitations on the water that can be used as the aqueous dispersion medium, and water used in cosmetics, quasi-drugs, etc. can be used. For example, ion-exchanged water, distilled water, ultrapure water, tap water, etc. can be used.
[0043] (Sheet-type cosmetics) In some embodiments, the base agent of the present disclosure can be in the form of a sheet-like cosmetic having the base agent on its surface. If the base agent is spread over a makeup cosmetic layer applied to the skin, the cosmetic layer may be rubbed off. On the other hand, with a sheet-like cosmetic in this form, the base agent can be applied by pasting or transferring it onto the makeup cosmetic layer, thereby reducing or preventing peeling of the makeup cosmetic layer.
[0044] There are no particular limitations on the method for producing the sheet-form cosmetic. For example, the sheet-form cosmetic can be produced by preparing a mixed liquid containing oil-absorbing particles, a binder, and optionally an aqueous medium, applying the mixed liquid to a sheet-form substrate using a bar coater, a spray, a roller, or the like, and then drying. Alternatively, the sheet-form cosmetic can be produced by applying a binder to a sheet-form substrate using a bar coater or the like, and then scattering oil-absorbing particles on the surface to which the binder has been applied.
[0045] The amount of the undercoat layer applied to the sheet substrate is not particularly limited, and may be, for example, 1 g / m 2 More than 3g / m 2 or more, or 5g / m 2 and 20 g / m 2 Below 15g / m 2 or less than 10g / m 2 It can be as follows:
[0046] The sheet-like substrate is not particularly limited, and examples thereof include paper; nonwoven fabrics containing fibers such as natural fibers such as cotton, linen, and wool; cellulosic fibers such as rayon and acetate; and synthetic fibers such as polyethylene, polypropylene, polyurethane, polyacrylic, polyester, vinylidene, polyvinyl chloride, and nylon; knitted or woven fabrics of the above fibers; porous films; and foam sheets having continuous pores. These may be used alone or in combination of two or more.
[0047] The shape of the sheet-like substrate is not particularly limited, and may be any shape that is easy to hold in the hand. For example, a cloth-like, bag-like, or cylindrical shape may be adopted. In the case of a bag-like or cylindrical shape, a finger can be inserted into the opening of the bag-like or cylindrical shape and the pad of the finger can be used widely. In the case of a bag-like shape, the overall shape is not limited to a square shape, but may be a triangular shape or a round shape, and the end of the bag may be curved.
[0048] The binder is not particularly limited, and for example, natural water-soluble polymers, semi-synthetic water-soluble polymers, and synthetic water-soluble polymers can be used. The binders can be used alone or in combination of two or more kinds.
[0049] Examples of natural water-soluble polymers include guar gum, locust bean gum, quince seed, carrageenan, galactan, gum arabic, tragacanth gum, pectin, mannan, starch, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, casein, albumin, collagen, and derivatives thereof.
[0050] Examples of semi-synthetic water-soluble polymers include cellulose-based polymers such as methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose or salts thereof (e.g., sodium salts, potassium salts, etc.), and methylhydroxypropyl cellulose; starch-based polymers such as soluble starch, carboxymethyl starch, and methyl starch; alginic acid-based polymers such as propylene glycol alginate and alginates; and polysaccharide derivatives.
[0051] Examples of synthetic water-soluble polymers include polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl methyl ether, carboxyvinyl polymer, acrylic acid alkyl methacrylate copolymer, polyacrylic acid salts (e.g., sodium salts, potassium salts, etc.), polyethylene oxide, and ethylene oxide-propylene oxide block copolymers.
[0052] Body Correction Film Forming Agent The primer of the present disclosure described above can be suitably used for a body correction film-forming agent of a spreadable type. An example of a body correction film-forming agent of a spreadable type will be described below, but the body correction film-forming agent is not limited to this.
[0053] In some embodiments, the application-type body correcting film-forming agent may include a body correcting film-forming agent comprising a first agent and a second agent. Such a body correcting film-forming agent can form a body correcting film, for example, by applying the first agent to the body surface to form a first agent layer, and then applying the second agent to the first agent layer to crosslink the first agent layer.
[0054] In some embodiments, the application performance of the body correction film-forming agent can be evaluated by viscosity using a Brookfield viscometer (Shibaura Systems Co., Ltd., Vismetron). The viscosity of the first and second agents of the body correction film-forming agent of the present disclosure immediately after preparation, measured under conditions of 25°C and 60 rpm (rotor No. 3 or No. 4), is, for example, 100 mPa·s or more, 500 mPa·s or more, 1,000 mPa·s or more, 2,000 mPa·s or more, 5,000 mPa·s or more, 7,500 mPa·s or more, 10,000 mPa·s or more, or 15,000 mPa·s or more. The viscosity can be 1,000,000 mPa·s or more, and 1,000,000 mPa·s or less, 750,000 mPa·s or less, 500,000 mPa·s or less, 250,000 mPa·s or less, 200,000 mPa·s or less, 175,000 mPa·s or less, 150,000 mPa·s or less, 125,000 mPa·s or less, 100,000 mPa·s or less, or 80,000 mPa·s or less. In particular, from the viewpoints of smooth application and suppression of dripping from the skin, the body correcting film-forming agent preferably has a viscosity of 20,000 mPa·s or less, 15,000 mPa·s or less, or 10,000 mPa·s or less, and preferably has a viscosity of 3,000 mPa·s or more, 5,000 mPa·s or more, or 7,000 mPa·s or more.
[0055] Furthermore, in some embodiments, the viscosity of the first and second agents in the body correcting film-forming agent of the present disclosure after two weeks, measured at 25°C and 60 rpm (rotor No. 3), is preferably 50,000 mPa·s or less, 30,000 mPa·s or less, or 15,000 mPa·s or less, from the viewpoints of smooth application performance and suppression of dripping from the skin, and is preferably 5,000 mPa·s or more, 7,000 mPa·s or more, or 10,000 mPa·s or more.
[0056] In some embodiments, the coating performance of a body correction film can be evaluated, for example, by whether or not the body correction film breaks when peeled off from the skin. For example, if the applied body correction film breaks 15% or less, 10% or less, or 5% or less of the total, the coating performance can be said to be excellent. There is no particular limit to the lower limit of breakage, but it can be, for example, 0% or more or more than 0%. In addition, the coating performance can also be evaluated by tensile strength, breaking elongation, etc., as described below.
[0057] <First agent> The first agent constituting the body correcting film-forming agent of the present disclosure contains polymer A composed of an unsaturated organopolysiloxane and polymer B composed of a hydride-functionalized polysiloxane. Polymer A and / or polymer B can function as an oil component in the first agent.
[0058] The first agent may be, for example, in an anhydrous form (e.g., a single-phase form composed of an oil phase) or in the form of an oil-in-water or water-in-oil emulsion, but from the standpoint of drying and crosslinking properties after application of the first agent to the body surface, it is advantageous for the first agent to be in an anhydrous form.
[0059] Anhydrous forms typically do not require preservatives against bacteria or mold and can therefore be stored for longer periods than emulsions of similar ingredients. In this disclosure, "anhydrous" not only connotes the absence of water in the composition, but also the presence of low amounts of water, i.e., 10% by weight or less, 5% by weight or less, 2% by weight or less, 1% by weight or less, or 0.1% by weight or less.
[0060] Since the first agent is applied to the body surface by application or the like, it preferably has a glass transition temperature below body temperature from the viewpoint of application performance. For example, the glass transition temperature can be 37°C or lower, 25°C or lower, 10°C or lower, or 0°C or lower. There is no particular restriction on the lower limit of the glass transition temperature, but it can be, for example, -30°C or higher, -20°C or higher, or -10°C or higher. Here, "glass transition temperature" refers to the temperature at which a transition from a solid state to a liquid state occurs, and can be measured, for example, using a differential scanning calorimeter (DSC) in accordance with ASTM D3418-03.
[0061] (Polymer A) The unsaturated organopolysiloxane constituting polymer A is not particularly limited, and examples thereof include one or more organopolysiloxanes having at least two carbon-carbon double bonds or at least one carbon-carbon triple bond in the molecule. Such unsaturated organopolysiloxanes are preferably one or more organopolysiloxanes having an average of at least two alkenyl functional groups and a viscosity of 10,000 to 2,000,000 cst at 25°C. In this disclosure, the "carbon-carbon double bond" and "carbon-carbon triple bond" may be simply referred to as "double bond" and "triple bond." The unsaturated organopolysiloxanes constituting polymer A may be used alone or in combination of two or more.
[0062] Such organopolysiloxanes may contain double or triple bonds in terminal units of the polymer, in non-terminal monomer units of the polymer, or a combination thereof, preferably in non-terminal monomer units of the polymer.
[0063] In some embodiments, the double bond-containing monomer units in the organopolysiloxane may be separated, on average, by 40 monomer units or more, 200 monomer units or more, 400 monomer units or more, 1,000 monomer units or more, or 2,000 monomer units or more.
[0064] In one embodiment, the amount of double- or triple-bond-containing monomer units in the organopolysiloxane having a double or triple bond can be, for example, 0.01% by weight or more, or 0.03% by weight or more, and can be 2% by weight or less, or 0.6% by weight or less.
[0065] In some embodiments, the vinyl equivalent weight of the organopolysiloxane having double or triple bonds can be, for example, 0.005 or more, or 0.01 or more, and 0.5 or less, or 0.25 or less per kilogram. The approximate molar amount of double or triple bonds in the organopolysiloxane can be calculated based on the average molecular weight of the organopolysiloxane. Here, the average molecular weight or molecular mass of each component in the body correction film-forming agent disclosed herein is generally provided by the supplier of each component and can be expressed in units of Daltons (Da) or its equivalent, g / mol.
[0066] In one embodiment, the unsaturated organopolysiloxane can have a viscosity of 10,000 to 2,000,000 cst at 25° C. The lower limit of the viscosity is preferably 20,000 cst or more, 40,000 cst or more, 60,000 cst or more, 80,000 cst or more, or 100,000 cst or more, and more preferably 125,000 cst or more or 150,000 cst or more. The upper limit of the viscosity is preferably 1,000,000 cst or less, 500,000 cst or less, 450,000 cst or less, 400,000 cst or less, 350,000 cst or less, 300,000 cst or less, or 250,000 cst or less, more preferably 200,000 cst or less or 180,000 cst or less, and even more preferably 165,000 cst or less.
[0067] In one embodiment, the unsaturated organopolysiloxane can have an average molecular weight of 60,000 Da to 500,000 Da. The lower limit of this average molecular weight is preferably 72,000 Da or more, 84,000 Da or more, 96,000 Da or more, or 100,000 Da or more, and more preferably 140,000 Da or more or 150,000 Da or more. The upper limit of the average molecular weight is preferably 200,000 Da or less, 190,000 Da or less, 180,000 Da or less, or 170,000 Da or less, more preferably 160,000 Da or less, and even more preferably 155,000 Da or less.
[0068] The unsaturated organopolysiloxane may be, for example, at least one selected from organopolysiloxanes having a vinyl group, vinyl-terminated organopolysiloxanes, and vinylated branched organopolysiloxanes.
[0069] Specific examples of such unsaturated organopolysiloxanes include at least one selected from vinyl-terminated polydimethylsiloxane, vinyl-terminated diphenylsiloxane-dimethylsiloxane copolymer, vinyl-terminated polyphenylmethylsiloxane, vinylphenylmethyl-terminated vinylphenylsiloxane-phenylmethylsiloxane copolymer, vinyl-terminated trifluoropropylmethylsiloxane-dimethylsiloxane copolymer, vinyl-terminated diethylsiloxane-dimethylsiloxane copolymer, vinylmethylsiloxane-dimethylsiloxane copolymer, trimethylsiloxy-terminated vinylmethylsiloxane-dimethylsiloxane copolymer, silanol-terminated vinylmethylsiloxane-dimethylsiloxane copolymer, vinylmethylsiloxane homopolymer, vinyl T-structure polymer, monovinyl-terminated polydimethylsiloxane, vinylmethylsiloxane terpolymer, and vinylmethoxysilane homopolymer. Among these, vinyl-terminated polydimethylsiloxane is preferred, and vinyl dimethicone (divinyl dimethicone) is more preferred. In the present disclosure, the term "terminal" refers to either one terminal or both terminals. When distinguishing between these, they can be expressed as, for example, "single vinyl terminal" and "double vinyl terminal."
[0070] The amount of unsaturated organopolysiloxane in the first agent is not particularly limited and may be adjusted appropriately depending on the required coating performance, etc. For example, the amount of the first unsaturated organopolysiloxane in the first agent as a whole may be 5% by mass or more, 10% by mass or more, 20% by mass or more, 30% by mass or more, 35% by mass or more, or 40% by mass or more, and may be 90% by mass or less, 80% by mass or less, 70% by mass or less, 60% by mass or less, 50% by mass or less, or 45% by mass or less.
[0071] (Polymer B) The hydride-functionalized polysiloxane constituting the polymer B is not particularly limited, and examples thereof include compounds of the following formula 1. The hydride-functionalized polysiloxanes can be used alone or in combination of two or more kinds: [ka]
[0072] In formula 1, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10b are each independently hydrogen, C 1-20 Alkyl, C 2-20 Alkenyl, C 5-10 Aryl, hydroxyl, or C 1-20 alkoxy, and m and n are each independently an integer of 10 to 6000. 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10b At least one of is hydrogen.
[0073] In some embodiments, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10b At least one of them is hydrogen and the rest are C 1-20 It is alkyl.
[0074] In some embodiments, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10bAt least two of the are hydrogen (eg, two Si-H units per functionalized hydridopolysiloxane molecule).
[0075] In other embodiments, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10b At least three of the are hydrogen (eg, three Si-H units per functionalized hydridopolysiloxane molecule).
[0076] In some embodiments, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10b at least two of which are hydrogen (e.g., two Si—H units per functionalized hydridopolysiloxane molecule), and the remainder are C 1-20 It is alkyl.
[0077] In other embodiments, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b and R 10b at least three of which are hydrogen (e.g., three Si-H units per functionalized hydridopolysiloxane molecule), and the remainder are C 1-20 It is alkyl.
[0078] In some embodiments, R 4b , R 5b , R 9b and R 10bat least two of which are hydrogen (e.g., two Si—H units per functionalized hydridopolysiloxane molecule), and the remainder are C 1-20 It is alkyl.
[0079] In other embodiments, R 4b , R 5b , R 9b and R 10b at least three of which are hydrogen (e.g., three Si-H units per functionalized hydridopolysiloxane molecule), and the remainder are C 1-20 It is alkyl.
[0080] In some embodiments, the sum of m and n is an integer of 10 to 1,300, 10 to 1,100, 10 to 600, 15 to 500, 15 to 400, 20 to 300, 20 to 200, 25 to 100, 25 to 75, 30 to 50, or 40 to 45.
[0081] In some embodiments, the hydride-functionalized polysiloxane can include non-terminally and / or terminally hydroxylated organopolysiloxanes, and can include one or more organopolysiloxanes having at least two Si—H units in the molecule, preferably having an average of at least two Si—H units, and having a viscosity of 2 to 100,000 cst at 25° C.
[0082] In some embodiments, the organopolysiloxane having Si-H units may contain such Si-H units in terminal units of the polymer, in non-terminal monomer units of the polymer, or a combination thereof. It is particularly preferred that the Si-H units are contained in non-terminal monomer units of the polymer. In this case, the hydride-functionalized polysiloxane may be alkyl-terminated. For example, in Formula 1, R 2b and R 7b One or both of 1-20 It may also be alkyl.
[0083] In one embodiment, in Formula 1, R 1b , R2b , R 3b , R 6b , R 7b and R 8b One, two, three, four, five or six of the following are C 1-20 It may also be alkyl.
[0084] In one embodiment, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b and R 10b are C 1-20 alkyl, for example, C alkyl (e.g., methyl), and R 9b may be hydrogen.
[0085] In one embodiment, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b and R 9b are C 1-20 alkyl, for example, C alkyl (e.g., methyl), and R 10b may be hydrogen.
[0086] In some embodiments, the Si—H containing monomer units in the organopolysiloxane may be separated, on average, by at least 1 monomer unit, at least 2 monomer units, at least 5 monomer units, at least 10 monomer units, at least 20 monomer units, at least 40 monomer units, at least 200 monomer units, at least 400 monomer units, at least 1,000 monomer units, or at least 2,000 monomer units.
[0087] In one embodiment, the amount of Si—H-containing monomer units in the organopolysiloxane having Si—H units can be 0.003% by weight or more, 0.01% by weight or more, 0.1% by weight or more, 1% by weight or more, 3% by weight or more, 5% by weight or more, 10% by weight or more, 20% by weight or more, or 26% by weight or more, and can be 50% by weight or less, 45% by weight or less, 40% by weight or less, 35% by weight or less, 30% by weight or less, or 27% by weight or less.
[0088] In some embodiments, the Si-H content of the organopolysiloxane having Si-H units can be 0.1 mmol / g or more, 0.5 mmol / g or more, 1 mmol / g or more, 2 mmol / g or more, 3 mmol / g or more, or 4 mmol / g or more, and can be 20 mmol / g or less, 10 mmol / g or less, 9 mmol / g or less, 8 mmol / g or less, 7 mmol / g or less, 6 mmol / g or less, or 5 mmol / g or less. The approximate molar amount of Si-H units in the organopolysiloxane can be calculated based on the average molecular weight of the organopolysiloxane.
[0089] In one embodiment, the hydride-functionalized polysiloxane can have a viscosity of 2 to 500,000 cst at 25° C. The lower limit of the viscosity is preferably 3 cst or more, 4 cst or more, 5 cst or more, 10 cst or more, 12 cst or more, 15 cst or more, 20 cst or more, 25 cst or more, or 30 cst or more, and more preferably 40 cst or more. The upper limit of the viscosity is preferably 200,000 cst or less, 100,000 cst or less, 50,000 cst or less, 20,000 cst or less, 10,000 cst or less, 5,000 cst or less, 2,000 cst or less, or 1,000 cst or less, and more preferably 500 cst or less. The viscosity of the hydride-functionalized polysiloxane at 25°C is particularly preferably in the range of 45 to 100 cst, or 45 to 50 cst.
[0090] In some embodiments, the hydride-functionalized polysiloxane can have an average molecular weight of 400 to 500,000 Da, with the lower limit of such average molecular weight preferably being 500 Da or greater, 800 Da or greater, 900 Da or greater, 1,000 Da or greater, 1,200 Da or greater, 1,400 Da or greater, 1,600 Da or greater, 1,800 Da or greater, 2,000 Da or greater, or 2,200 Da or greater, and more preferably 2,300 Da or greater. The upper limit of the average molecular weight is preferably 250,000 Da or less, 140,000 Da or less, 100,000 Da or less, 72,000 Da or less, 62,700 Da or less, 60,000 Da or less, 50,000 Da or less, 49,500 Da or less, 36,000 Da or less, 28,000 Da or less, 25,000 Da or less, 20,000 Da or less, 15,000 Da or less, 10,000 Da or less, 5,000 Da or less, or 4,000 Da or less, and more preferably 2,500 Da or less.
[0091] The hydride-functionalized polysiloxane may be, but is not limited to, at least one selected from hydride-terminated polydimethylsiloxane, hydride-terminated polyphenyl-(dimethylhydrosiloxy)siloxane, hydride-terminated methylhydrosiloxane-phenylmethylsiloxane copolymer, trimethylsiloxy-terminated methylhydrosiloxane-dimethylsiloxane copolymer, polymethylhydrosiloxane, trimethylsiloxy-terminated polyethylhydrosiloxane, triethylsiloxane, methylhydrosiloxane-phenyloctylmethylsiloxane copolymer, and methylhydrosiloxane-phenyloctylmethylsiloxane terpolymer. Among these, hydride-terminated polydimethylsiloxane is preferred, and hydrogen dimethicone is more preferred.
[0092] The amount of the hydride-functionalized polysiloxane in the first agent is not particularly limited and may be appropriately adjusted depending on the required coating performance, etc. For example, the amount of the hydride-functionalized polysiloxane in the first agent as a whole may be 1% by mass or more, 3% by mass or more, or 5% by mass or more, and may be 75% by mass or less, 60% by mass or less, 50% by mass or less, 40% by mass or less, 30% by mass or less, 20% by mass or less, or 10% by mass or less.
[0093] <Second agent> The second agent constituting the body correcting film-forming agent of the present disclosure contains a catalyst that promotes crosslinking of the above-mentioned polymer A and polymer B.
[0094] The second agent may be, for example, in an anhydrous form, i.e., in a form in which a catalyst is contained in oil, or may be in the form of an oil-in-water or water-in-oil emulsion. However, from the viewpoint of the applicability and crosslinkability of the second agent to the surface to which the first agent is applied, it is preferable that the second agent be in the form of an oil-in-water or water-in-oil emulsion, and it is more preferable that the second agent be in the form of an oil-in-water emulsion.
[0095] The second agent is applied to the surface to which the first agent is applied by painting or the like, and therefore, from the viewpoint of application performance, it preferably has a glass transition temperature equal to or lower than body temperature. For example, the glass transition temperature can be 37°C or lower, 25°C or lower, 10°C or lower, or 0°C or lower. There is no particular restriction on the lower limit of the glass transition temperature, but it can be, for example, -30°C or higher, -20°C or higher, or -10°C or higher.
[0096] (catalyst) The catalyst is not particularly limited and may include, for example, any substance capable of causing, promoting, or initiating a physical and / or chemical crosslinking reaction, which may or may not undergo permanent physical and / or chemical changes during or at the end of the process.
[0097] The catalyst may be, but is not limited to, a metal catalyst capable of initiating and / or accelerating crosslinking at or below body temperature, such as a Group VIII metal catalyst, e.g., platinum catalyst, rhodium catalyst, palladium catalyst, cobalt catalyst, nickel catalyst, ruthenium catalyst, osmium catalyst, and iridium catalyst, and a Group IVA metal catalyst, e.g., germanium catalyst and tin catalyst. Of these, a platinum catalyst, a rhodium catalyst, or a tin catalyst is preferred. The catalyst may be used alone or in combination.
[0098] Platinum catalysts include, for example, platinum carbonylcyclovinylmethylsiloxane complexes, platinum divinyltetramethyldisiloxane complexes, platinum cyclovinylmethylsiloxane complexes, platinum octanaldehyde / octanol complexes, and other Pt(0) catalysts such as Karstedt's catalyst, platinum-alcohol complexes, platinum-alkoxide complexes, platinum-ether complexes, platinum-aldehyde complexes, platinum-ketone complexes, platinum-halogen complexes, platinum-sulfur complexes, platinum-nitrogen complexes, platinum-phosphorus complexes, platinum-carbon double bond complexes, platinum-carbon triple bond complexes, platinum-imido complexes, platinum-amide complexes, platinum-ester complexes, platinum-phosphate ester complexes, platinum-thiol ester complexes, platinum lone pair complexes, platinum-aromatic complexes, platinum π-electron complexes, and combinations thereof.
[0099] Rhodium catalysts include, for example, tris(dibutylsulfide)rhodium trichloride and rhodium trichloride hydrate.
[0100] Examples of tin catalysts include tin(II) octoate, tin(II) neodecanoate, dibutyltin diisooctylmaleate, di-n-butyltin bis(2,4-pentanedionate)tin, di-n-butylbutoxychlorotin, dibutyltin dilaurate, dimethyltin dineodecanoate, tin dimethylhydroxy(oleate), and tin(II) oleate.
[0101] Among these catalysts, platinum catalysts are more preferred, with platinum divinyltetramethyldisiloxane complexes being particularly preferred.
[0102] The amount of catalyst blended in the second agent is not particularly limited and may be adjusted appropriately depending on the required coating performance, etc. For example, the amount of catalyst blended can be 0.001% by mass or more, 0.005% by mass or more, or 0.01% by mass or more, and 1% by mass or less, 0.1% by mass or less, 0.05% by mass or less, or 0.03% by mass or less, relative to the entire second agent.
[0103] <Optional ingredients> The body correcting film-forming agent of the present disclosure may contain one or more optional ingredients in the first agent and / or second agent to the extent that the effects of the present disclosure are not affected.
[0104] The optional components are not particularly limited, but examples include polymers other than polymers A and B (sometimes simply referred to as "polymer C"), water (e.g., ion-exchanged water, distilled water, ultrapure water, tap water), oils, emulsifiers, surfactants, texture modifiers, adhesion modifiers, spreadability promoters, diluents, adhesion modifiers, emollients, solvents, film-forming agents, humectants, preservatives, fibers, pigments, dyes, thickeners, protective colloids, fillers, extenders, skin permeation enhancers, skin protectants, lubricants, skin conditioning agents, optical modifiers, scattering agents, adsorbents, magnetic materials, gas transport modifiers, liquid transport modifiers, pH modifiers (neutralizers), sensitization modifiers, and aesthetic modifiers. Some optional components are described in detail below, but the components are not limited to these.
[0105] The first and / or second agent may optionally contain another polymer, polymer C. Polymer C may be used alone or in combination of two or more types. This polymer C may function as an oil component in the first and / or second agent.
[0106] In one embodiment, Polymer C may have a viscosity of 0.7 cst to 50,000 cst at 25° C. The lower limit of the viscosity may be 1 cst or more, 6 cst or more, 10 cst or more, 20 cst or more, 50 cst or more, 100 cst or more, 200 cst or more, 300 cst or more, 400 cst or more, 750 cst or more, 1,000 cst or more, 1,500 cst or more, 2,000 cst or more, 2,500 cst or more, 3,000 cst or more, 3,500 cst or more, or 4,000 cst or more. The upper limit of the viscosity can be 45,000 cst or less, 40,000 cst or less, 35,000 cst or less, 30,000 cst or less, 25,000 cst or less, 20,000 cst or less, 15,000 cst or less, 12,000 cst or less, 10,000 cst or less, 5,000 cst or less, 4,000 cst or less, 2,000 cst or less, 1,500 cst or less, or 1,000 cst or less.
[0107] In some embodiments, Polymer C may have an average molecular weight of 180 Da to 80,000 Da. The lower limit of the average molecular weight may be 500 Da or more, 800 Da or more, 1,500 Da or more, 3,000 Da or more, 6,000 Da or more, 9,400 Da or more, 10,000 Da or more, 15,000 Da or more, 20,000 Da or more, 30,000 Da or more, 40,000 Da or more, 50,000 Da or more, 55,000 Da or more, 60,000 Da or more, or 62,000 Da or more. The upper limit of the average molecular weight may be 75,000 Da or less, 70,000 Da or less, 65,000 Da or less, or 63,000 Da or less.
[0108] Polymer C is preferably one or more organopolysiloxanes having on average at least one alkenyl functional group and a viscosity at 25°C of 0.7 to 50,000 cst.
[0109] Specifically, examples of polymer C include vinyl-terminated polydimethylsiloxane, vinyl-terminated diphenylsiloxane-dimethylsiloxane copolymer, vinyl-terminated polyphenylmethylsiloxane, vinylphenylmethyl-terminated vinylphenylsiloxane-phenylmethylsiloxane copolymer, vinyl-terminated trifluoropropylmethylsiloxane-dimethylsiloxane copolymer, vinyl-terminated diethylsiloxane-dimethylsiloxane copolymer, vinylmethylsiloxane-dimethylsiloxane copolymer, trimethylsiloxy-terminated vinylmethylsiloxane-dimethylsiloxane copolymer, silanol-terminated vinylmethylsiloxane-dimethylsiloxane copolymer, At least one selected from the group consisting of methyl siloxane copolymers, vinyl-terminated vinyl rubbers, vinylmethylsiloxane homopolymers, vinyl T-structure polymers, vinyl Q-structure polymers, unsaturated organic polymers (e.g., unsaturated fatty alcohols, unsaturated fatty acids, unsaturated fatty esters, unsaturated fatty amides, unsaturated fatty urethanes, unsaturated fatty ureas, ceramides, crocetin, lecithin, and sphingosine), monovinyl-terminated polydimethylsiloxanes, vinylmethylsiloxane terpolymers, vinylmethoxysilane homopolymers, vinyl-terminated polyalkylsiloxane polymers, and vinyl-terminated polyalkoxysiloxane polymers can be used. Among these, vinyl-terminated polydimethylsiloxanes are preferred, and vinyl dimethicone (divinyl dimethicone) is more preferred.
[0110] The blending amount of polymer C is not particularly limited and may be adjusted appropriately depending on the required coating performance, etc. For example, the blending amount of polymer C may be 0.01% by mass or more, 0.1% by mass or more, 0.3% by mass or more, or 0.5% by mass or more, and may be 20% by mass or less, 15% by mass or less, or 10% by mass or less, based on the total amount of the first agent or the second agent.
[0111] In one embodiment, the molar ratio of Si-H functional groups from polymer B to alkenyl functional groups from polymer A is preferably from 60:1 to 1:5, more preferably from 45:1 to 15:1.
[0112] In one embodiment, the molar ratio of Si-H functional groups from polymer B to alkenyl functional groups from polymer C is preferably from 60:1 to 1:5, more preferably from 45:1 to 15:1.
[0113] In one embodiment, the molar ratio of alkenyl functional groups derived from polymer A to alkenyl functional groups derived from polymer C is preferably 100:1 to 1:100, more preferably 10:1 to 1:10.
[0114] The oil is not particularly limited, and examples thereof include liquid oils, solid oils, waxes, hydrocarbon oils, silicone oils, polar oils, etc. The oils may be used alone or in combination of two or more. Among them, silicone oils are preferred from the viewpoint of compatibility with polymer A, polymer B, catalyst, etc.
[0115] Examples of silicone oils that can be used include linear silicones such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, and methylhydrogenpolysiloxane; and cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. Silicone oils can be used alone or in combination.
[0116] Examples of fillers include at least one selected from carbon, silver, mica, zinc sulfide, zinc oxide, titanium dioxide, aluminum oxide, clay, chalk, talc, calcite (e.g., CaCO), barium sulfate, zirconium dioxide, polymer beads, silica (e.g., fumed silica, silicic acid, or anhydrous silica), silica aluminate, and calcium silicate, which may be surface-treated. Such fillers can improve the physical properties (e.g., strength) of the coating (body correction film) and also function as viscosity modifiers. Surface-treated silica, such as silica treated with a surface treatment agent such as hexamethyldisilazane, polydimethylsiloxane, hexadecylsilane, or methacrylsilane, is preferred. Fumed silica is also preferred, and fumed silica surface-treated with hexamethyldisilazane or the like can be used.
[0117] In one embodiment, the filler is 50 to 500 m 2 The specific surface area of the filler can be 100 to 350 m / g. 2 / g, and 135 to 250m 2 / g Here, the specific surface area of the filler can be calculated using the BET method.
[0118] In one embodiment, the filler may have an equivalent circle diameter of 1 nm to 20 μm. The equivalent circle diameter of the filler is preferably 2 nm to 1 μm, and more preferably 5 nm to 50 nm. The equivalent circle diameter of the filler can be determined by the same method as for the oil-absorbing particles described above.
[0119] When a filler is blended into the first agent, the blending amount can be, for example, 1% by mass or more, 3% by mass or more, or 5% by mass or more, and 25% by mass or less, 15% by mass or less, or 10% by mass or less, relative to the entire first agent.
[0120] In one embodiment, from the viewpoint of the reinforcement properties of the body correction coating, the mass ratio of the total amount of polymers A to C to the filler can be 100:1 to 1:1, preferably 50:1 to 2:1, more preferably 15:1 to 3:1, even more preferably 10:1 to 4:1, and particularly preferably 5:1 to 9:1.
[0121] Of the optional components, at least one selected from pigments, dyes, and fillers is preferably blended into the first agent. In particular, if pigments and dyes are blended into the second agent, the second agent may solidify during application to the surface to which the first agent is applied, which may lead to localized pigment or dye dispersion, resulting in color unevenness. From the perspective of suppressing color unevenness, it is advantageous to blend pigments and dyes into the first agent. Furthermore, pigments, dyes, and fillers may be blended into the second agent to the extent that color unevenness does not occur, but it is advantageous for these not to be included in the second agent.
[0122] In some embodiments, the body correcting film-forming agent of the present disclosure can further contain one or more drugs in addition to the first and / or second agents. Such drugs can include, for example, cosmetic agents, therapeutic agents, stimulus response agents, and drug delivery agents.
[0123] Suitable cosmetic agents may include, for example, moisturizers, UV absorbers, skin protectants, skin soothing agents, skin lightening agents, skin brightening agents, skin emollients, skin smoothing agents, skin bleaching agents, skin exfoliating agents, skin tightening agents, beauty agents, vitamins, antioxidants, cell signaling agents, cell regulating agents, cell interacting agents, skin tanning agents, anti-aging agents, anti-wrinkle agents, spot reducers, alpha-hydroxy acids, beta-hydroxy acids, and ceramides.
[0124] Suitable therapeutic agents can include, for example, pain relievers, analgesics, antipruritics, anti-acne agents (e.g., beta-hydroxy acids, salicylic acid, benzoyl peroxide), anti-inflammatory agents, antihistamines, corticosteroids, NSAIDs (nonsteroidal anti-inflammatory drugs), antiseptics, antibiotics, antibacterial agents, antifungals, antivirals, antiallergic agents, anti-irritants, insect repellents, phototherapy agents, blood coagulants, antineoplastic agents, immune system enhancers, immune system suppressants, coal tar, anthralin, fluocinonide, methotrexate, cyclosporine, pimecrolimus, tacrolimus, azathioprine, fluorouracil, ceramides, counterirritants, and skin cooling compounds.
[0125] Suitable agents can include, for example, antioxidants, vitamins, vitamin D3 analogs, retinoids, minerals, mineral oil, petrolatum, fatty acids, plant extracts, polypeptides, antibodies, proteins, sugars, humectants, and emollients.
[0126] "kit" The above-described foundation agent, aqueous dispersion cosmetic, or sheet-like cosmetic of the present disclosure can be provided as a kit together with a spreadable body correcting film-forming agent. The kit may also include optional components such as components for facilitating application of the first agent or the like to the body surface, and various cosmetic materials described below.
[0127] Examples of such optional components include an instruction manual, a brush, a cotton swab, a cutter, scissors, various cosmetics (e.g., makeup cosmetics) described below, a cleanser for removing body correction films from the body surface, a mirror, etc. Here, the "instruction manual" can include not only a general instruction manual attached in the form of a document to the kit, but also instructions printed on a packaging container that contains the kit or a packaging container such as a tube for injecting the first agent, etc.
[0128] In some embodiments, the kit may contain the first and second agents in separate containers or in separate compartments of a container having two or more compartments to prevent contact between the agents, and the contained agents may be configured to be applied one at a time or to be mixed together before or at the time of use.
[0129] <<How to use the primer and body correcting film former>> The above-described base agent of the present disclosure, or the aqueous dispersion cosmetic or sheet-type cosmetic containing the base agent, and the spreadable body correcting film-forming agent can be used, for example, for cosmetic or medical purposes. Here, the method of using the body correcting film-forming agent of the present disclosure does not include methods for surgery, treatment, or diagnosis of humans.
[0130] In some embodiments, the base agent of the present disclosure may be applied directly to the skin. However, from the viewpoint of preventing skin dryness due to the base agent, for example, it is preferable to apply the base agent of the present disclosure to the body surface via a makeup cosmetic or the like. In this case, methods of using the base agent and body correcting film-forming agent include, for example, a method in which after applying a makeup cosmetic to the body surface, a base agent or an aqueous dispersion cosmetic or sheet-type cosmetic containing the base agent is applied to the application surface to form a base layer, and a first agent is applied to this base layer, followed by a second agent, which is crosslinked to form a body correcting film; a method in which a second agent is applied to the makeup cosmetic layer and base layer applied to the body surface in the same manner, followed by a first agent, which is crosslinked to form a body correcting film; or a method in which a mixture prepared by mixing the first agent and the second agent is applied to the makeup cosmetic layer and base layer applied to the body surface in the same manner, followed by crosslinking to form a body correcting film. From the viewpoint of forming a uniform body correction film with little unevenness, the preferred method of use is to apply the first agent to the base layer to form a first agent layer, and then apply the second agent to this first agent layer and crosslink it to form a body correction film. Here, the first agent and the second agent can be made of the same materials as those described above.
[0131] In this method, the application of the body correcting film forming agent may be performed once, or may be performed multiple times on the formed body correcting film.
[0132] The makeup cosmetic is not particularly limited, and examples thereof include makeup bases different from primers for applied artificial skin, foundations, glosses, lipsticks, eye shadows, blushes, eyeliners, mascara, nail polish, sunscreens, etc. In particular, the primer of the present disclosure can be suitably used in makeup cosmetics in which the amount of oil relative to the total cosmetic is 5% by mass or more, 7% by mass or more, or 10% by mass or more, and 70% by mass or less, 60% by mass or less, 50% by mass or less, 40% by mass or less, or 30% by mass or less.
[0133] In some embodiments, the above-described method of use can also be used as a cosmetic method. Note that the term "cosmetic method" refers to applying the body correction film-forming agent of the present disclosure to the body surface via a base layer to form a body correction film, thereby beautifying and adjusting the condition of the body surface, or a method of beautifying and adjusting the condition of the body surface, and is different from methods of surgery, treatment, or diagnosis for humans.
[0134] The method of applying the above-described base agent of the present disclosure, or the first and second agents constituting the aqueous dispersion cosmetic or sheet-type cosmetic containing the base agent, or the body correcting film-forming agent is not particularly limited, and for example, methods such as spreading with fingers, spray application, and transfer can be used.
[0135] <Application area> The body correction film-forming agent of the present disclosure can be applied to any part of the skin surface of the body, i.e., any part of the body surface. For example, it can be applied appropriately to the skin surface of the face (lips, eyes, nose, cheeks, forehead, etc.), neck, ears, hands, arms, legs, feet, chest, abdomen, back, etc. Here, skin also includes nails where the keratin of the epidermis has changed and hardened.
[0136] Body Correction Membrane <Thickness> The thickness of the body correction film prepared using the body correction film-forming agent of the present disclosure is not particularly limited and can be adjusted appropriately taking into account, for example, breathability, invisibility, compressibility, and occlusiveness to the skin. The thickness of the body correction film can be, for example, 0.5 μm or more, 1 μm or more, 10 μm or more, 30 μm or more, or 40 μm or more. There is no particular upper limit on the thickness, but it can be, for example, 150 μm or less, 100 μm or less, 90 μm or less, 80 μm or less, 70 μm or less, 60 μm or less, or 50 μm or less. Here, the thickness can be defined as the average value calculated by measuring the thickness of any portion of the body correction film five times using a high-precision Digimatic Micrometer (MDH-25MB, manufactured by Mitutoyo Corporation).
[0137] <Performance> A body correcting film prepared from the body correcting film-forming agent of the present disclosure can provide excellent results in various performance areas, for example, as shown below.
[0138] (adhesive strength) In some embodiments, the resulting body correction film can exhibit good adhesion to a base layer, etc. Such adhesion can be evaluated by measuring the adhesion of the body correction film applied to a polypropylene substrate. The adhesion of the body correction film to a polypropylene substrate can be 2 N / m or more, 5 N / m or more, 8 N / m or more, 10 N / m or more, or 15 N / m or more. There is no particular upper limit to the adhesion, but from the perspective of ease of peeling from the skin, it can be set to 200 N / m or less, 100 N / m or less, 80 N / m or less, 50 N / m or less, or 30 N / m or less. Here, adhesion can be measured using an Instron device in accordance with the peel adhesion test of ASTM C794.
[0139] (tensile strength) In some embodiments, the resulting body correction coating can exhibit good tensile strength. The tensile strength of the body correction coating can be 0.05 MPa or more, 0.10 MPa or more, 0.20 MPa or more, or 0.50 MPa or more. There is no particular upper limit to the tensile strength, but it can be, for example, 5.0 MPa or less, 3.0 MPa or less, 2.0 MPa or less, or 1.0 MPa or less. Here, the tensile strength can be measured using an Instron device in accordance with the ASTM D5083 extension tensile test.
[0140] (Elongation at break) In some embodiments, the resulting body correction film can exhibit good breaking elongation. The breaking elongation of the body correction film can be 25% or more, 50% or more, 100% or more, 200% or more, or 400% or more. There is no particular upper limit to the breaking elongation, but it can be, for example, 1,500% or less, 1,200% or less, 1,000% or less, 800% or less, or 600% or less. Here, the breaking elongation can be measured using an Instron device in accordance with the ASTM D5083 extension tensile test.
[0141] (oxygen permeability) In some embodiments, the resulting body correction coating can exhibit good oxygen permeability. The oxygen permeability of the body correction coating can be 5×10 for a body correction coating having a thickness of 300 μm. -9 cm 3 / (cm 2 ·s) or more, 5×10 -7 cm 3 / (cm 2 s) or more, or 5 × 10 -5 cm 3 / (cm 2 There is no particular upper limit to the oxygen permeability. 3 / (cm 2 ·s) or less, 0.5cm 3 / (cm 2 ·s) or less, 5×10 -2 cm 3 / (cm2 ·s) or less, 5×10 -3 cm 3 / (cm 2 s) or less, or 5 × 10 -4 cm 3 / (cm 2 The oxygen permeability can be measured using a remote control device in accordance with ASTM F2622, oxygen gas permeability test for plastic films and sheets.
[0142] (Water vapor permeability) In some embodiments, the resulting body correction coating can exhibit good water vapor transmission rates. The water vapor transmission rate of the body correction coating can be 1×10 for a body correction coating having a thickness of 300 μm. -9 cm 3 / (cm 2 ·s) or more, 1×10 -8 cm 3 / (cm 2 s) or more, or 1×10 -7 cm 3 / (cm 2 There is no particular upper limit to the water vapor transmission rate, but for example, 1.5×10 -1 cm 3 / (cm 2 ·s) or less, 1.5×10 -2 cm 3 / (cm 2 ·s) or less, 1×10 -4 cm 3 / (cm 2 ·s) or less, 1×10 -5 cm 3 / (cm 2 s) or less, or 1×10 -6 cm 3 / (cm 2 The water vapor transmission rate can be measured using a remote control device in accordance with ASTM F1249, Water Vapor Transmission Rate Test for Plastic Films and Sheets. [Example]
[0143] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these. Unless otherwise specified, the blending amounts are expressed in mass %.
[0144] Examples 1 to 8 and Comparative Examples 1 to 8 Each primer was prepared according to the formula shown in Table 1 using a conventional method commonly used in the field of foundations. Here, "loose" in Table 1 refers to a loose powder type, and "pressed" refers to a pressed powder type.
[0145] [Table 1]
[0146] The first agent of the body correcting film-forming agent was prepared by uniformly mixing 40.5 parts by mass of 165,000 cst vinyl dimethicone as polymer A (unsaturated organopolysiloxane), 7.9 parts by mass of hydrogen dimethicone as polymer B (hydride-functionalized polysiloxane), 6.6 parts by mass of silica silylate as a filler, and 45.0 parts by mass of 6 cst dimethicone as an oil.
[0147] According to the formulation shown in Table 2, the platinum catalyst dispersed in silicone oil and the ingredients other than potassium hydroxide dissolved in a portion of water were uniformly mixed to prepare an aqueous phase, and then the platinum catalyst dispersed in silicone oil was mixed into the aqueous phase, and the potassium hydroxide aqueous solution was further mixed in to neutralize, thereby preparing the second agent of the body correction film-forming agent.
[0148] [Table 2]
[0149] The obtained primer and body correcting film-forming agent were subjected to the following evaluations, the results of which are shown in Table 1 or Table 3.
[0150] Evaluation Method (Oil absorption amount) The oil absorption capacity of the oil-absorbing particles was determined in accordance with JIS-K5101 by adding boiled linseed oil to a sample of oil-absorbing particles until the entire sample formed a lump, and then determining the volume of boiled linseed oil per 100 g of sample.
[0151] (Color difference test 1) The primer was applied to the black paper using an applicator to form a primer layer. The first agent was then applied to another location on the black paper using an applicator, and the second agent was then spread using an applicator to form a body-correcting film.
[0152] Using a spectrophotometer (CM-3600d, manufactured by Konica Minolta), the hue of the base layer (a * 1, b * 1) and lightness (L * 1) and the color of the film (a * 2, b * 2) and lightness (L * 2) were measured. The hue and brightness values were calculated as the average values at three arbitrary points.
[0153] The measurement results obtained were then inserted into the following equation 2 to calculate the color difference (ΔE * ab ) was calculated:
number
[0154] (Color difference test 2) Foundation was applied to the entire surface of a 6 cm x 6 cm piece of white artificial leather using the applicator. The amount of foundation applied was approximately 2 g / m for liquid foundation. 2 For pressed powder foundation, it is approximately 0.75g / m 2 It was decided.
[0155] Using the above spectrophotometer, the hue of the foundation application layer (a * 1, b * 1) and lightness (L *1) was measured. The hue and brightness values were averaged at three arbitrary points.
[0156] Next, the first agent was applied to the foundation application layer using the applicator in a central 4 cm x 4 cm area, and then the second agent was spread using the applicator to form a body correction film. Alternatively, the foundation application layer was applied to the foundation application layer using the applicator in a central 4 cm x 4 cm area to form a base layer, and then the first agent was applied to the base layer using the applicator, and then the second agent was spread using the applicator to form a body correction film.
[0157] Using the above spectrophotometer, the hue of the body correction coating (a * 2, b * 2) and lightness (L * 2) was measured. The hue and brightness values were also averaged at three arbitrary points.
[0158] The obtained measurement results were introduced into the above equation 2 to obtain the color difference (ΔE * ab ) was calculated
[0159] (Appearance test) The appearance of the body correction film prepared in the same manner as in Color Difference Test 2 above was visually evaluated within a 4 cm x 4 cm area. Here, grades A to C can be considered as passing, and grade D can be considered as failing.
[0160] A: No change in color occurred in the center or frame. B: A slight change in color occurred in either the center or frame area. C: There was a slight change in color tone in the center and frame. D: There was a clear change in color tone in the center and frame.
[0161] [Table 3]
[0162] <result> As can be seen from the results of Comparative Examples 1 to 8 in Table 3, it was confirmed that when a body correcting film-forming agent is applied directly onto a foundation to form a body correcting film, the appearance of the resulting film deteriorates.
[0163] On the other hand, as can be seen from the results of Examples 1 to 8 in Table 3, when the base agent of the present disclosure is applied on top of a foundation to prepare a base layer, and then a body correcting film-forming agent is applied on top of the base layer to form a body correcting film, it was confirmed that the resulting film has a good appearance. [Explanation of symbols]
[0164] 1 skin 3. Cosmetic layer 5 Oil-absorbing particles 7 Body Correction Film
Claims
1. A primer for a spreadable body correction film, which contains oil-absorbing particles and has oil-absorbing properties.
2. 2. The primer according to claim 1, wherein the oil-absorbing particles are particles of at least one type selected from the group consisting of silica, perlite, boron nitride, magnesium carbonate, magnesium hydroxide, kaolin, talc, mica, polyamide resin, and (meth)acrylic resin.
3. The primer according to claim 1 or 2, further comprising at least one selected from the group consisting of plate-like particles and oil components.
4. The primer according to any one of claims 1 to 3, which is in the form of a cake.
5. An aqueous dispersion cosmetic comprising the base agent according to any one of claims 1 to 3.
6. A sheet-like cosmetic comprising a sheet-like substrate and a layer of the foundation agent according to any one of claims 1 to 3 laminated on the sheet-like substrate in a transferable manner.
7. The base agent according to any one of claims 1 to 4, the aqueous dispersion cosmetic according to claim 5, or the sheet-like cosmetic according to claim 6, and A body-correcting film-forming agent that can be applied to the body A kit comprising:
8. The body correction film-forming agent is a first part comprising a polymer A composed of an unsaturated organopolysiloxane and a polymer B composed of a hydride-functionalized polysiloxane; and a second agent containing a catalyst that promotes crosslinking of the polymer A and the polymer B; Including, The first agent and the second agent are contained in separate containers, or are contained separately in each compartment of a container having two or more compartments. The kit of claim 7.
9. After applying a makeup cosmetic to a body surface, the base agent according to any one of claims 1 to 4, the aqueous dispersion cosmetic according to claim 5, or the sheet-like cosmetic according to claim 6 is applied to the surface to which the makeup cosmetic has been applied to form a base layer, and Applying a body correcting film-forming agent to the base layer; Beauty method.
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