Compositions, two-component compositions, and kits, as well as a method for producing a film-like silicone on the surface of an object.

Abstract

To provide a composition that is easily spreadable and can form a uniform film. [Solution] One embodiment of the composition according to the present disclosure is a composition comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the composition is less than 20% by mass.

Description

[Technical Field]

[0001] This disclosure relates to compositions, two-component compositions, kits, and methods for producing a film-like silicone on the surface of an object. [Background technology]

[0002] Traditionally, there has been a demand for cosmetics with high unevenness correction effects that make skin irregularities such as pores and fine lines, as well as scars, less noticeable and make the skin appear smoother. Therefore, there is a desire for cosmetics such as foundations and primers that have high unevenness correction effects.

[0003] For example, a water-in-oil cosmetic composition for correcting uneven skin texture has been proposed, which is excellent in both concealing and transparency, concealing and making skin irregularities such as pores less noticeable, while simultaneously providing a high intra-skin light propagation effect by allowing more light to pass through the cosmetic film, thereby suppressing the generation of shadows caused by unevenness. This composition contains 1.0 to 3.0% by mass of spherical titanium dioxide with an average particle size of 200 to 400 nm, 0.2 to 1.0% by mass of dimethicone crosspolymer, 0.5 to 2.0% by mass of silica with an average particle size of 10 to 50 nm, 25 to 70% by mass of oil, and water (see Patent Document 1).

[0004] Furthermore, an oily cosmetic has been proposed that, despite having a matte finish, spreads smoothly, has high uniformity, offers excellent makeup retention, and provides excellent moisturizing properties, containing (A) a gel composition of organopolysiloxane elastomer partially or completely crosslinked by vinyl groups, pre-dispersed in an oil, (B) a gel composition of organopolysiloxane elastomer partially or completely crosslinked by oxyethylene groups, pre-dispersed in an oil, (C) 10 to 40% by mass of an oil that is semi-solid at 20°C, (D) aerosolized anhydrous silicic acid, and (E) spherical hollow inorganic powder with an average particle size of 3 to 25 μm and an oil absorption capacity of 80 ml / 100 g (see Patent Document 2).

[0005] Furthermore, organopolysiloxanes having a specific structure containing a hydride group (Si-H group) have been proposed for use in cosmetics and exhibiting excellent makeup longevity (see Patent Document 3). [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2014-129261 [Patent Document 2] Japanese Patent Publication No. 2019-14670 [Patent Document 3] Patent No. 6560151 [Overview of the project] [Problems that the invention aims to solve]

[0007] In view of the above, one aspect of the present disclosure aims to provide a composition that is easy to spread and can form a uniform film. [Means for solving the problem]

[0008] To solve the above problems, one embodiment of the composition according to the present disclosure is a composition comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the composition is less than 20% by mass. [Effects of the Invention]

[0009] According to one aspect of this disclosure, a composition can be provided that is easily spreadable and can form a uniform film. [Brief explanation of the drawing]

[0010] [Figure 1A]Figure 1A shows an example of a uniform film formed by a composition according to one embodiment. [Figure 1B] Figure 1B shows an example of a state in which a film made by a composition according to one embodiment is not uniform. [Figure 2] Figure 2 shows an example of a condition in which each expert panelist evaluated the degree of film peeling as "present" during the evaluation of the film's abrasion resistance. [Modes for carrying out the invention]

[0011] The embodiments of this disclosure will be described in detail below. However, the embodiments are not limited to the following description and can be modified as appropriate without departing from the gist of this disclosure. Furthermore, in this specification, the "~" indicating a numerical range means that the numbers before and after it are included as the lower and upper limits, respectively, unless otherwise specified.

[0012] (composition) One embodiment of the composition comprises an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the composition is less than 20% by mass.

[0013] A composition according to one embodiment may further contain a catalyst to promote the reaction between the unsaturated bonds contained in the hydride-functionalized polysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane, and water, and may further contain other components such as additives as needed.

[0014] The prior art compositions, such as those described in Patent Documents 1 to 3, have the problem of insufficient spreadability, making it impossible to form a uniform film.

[0015] Therefore, the inventors conducted diligent studies and came up with the idea of ​​setting the mass percentage of unsaturated organopolysiloxane to less than 50% by mass and the ratio of the total mass of multiple particles to the mass of the composition to less than 20% by mass. According to one aspect when the composition of the composition meets the above conditions, for example, while the above composition is applied to the object to be coated, the monohydric aliphatic alcohol volatilizes suitably, the spreadability becomes lighter, and a uniform coating film can be formed. Furthermore, this improves the uniformity of the film formed by further applying a composition containing a hydride-functionalized polysiloxane that undergoes a crosslinking reaction or hydrosilylation reaction with the unsaturated bonds contained in the unsaturated organopolysiloxane.

[0016] As will be explained in more detail later, the hydride-functionalized polysiloxane may be included in one embodiment of the composition (hereinafter sometimes referred to as "Composition 1"), or it may be included in a second composition that is different from Composition 1.

[0017] Furthermore, compositions containing unsaturated organopolysiloxanes can typically become sticky. However, in one aspect, if the composition meets the conditions described above, good usability can be achieved.

[0018] In some embodiments, a film formed by a crosslinking reactive component contained in the first and / or second composition, and preferably a catalyst that further causes, promotes, and / or initiates crosslinking of the crosslinking reactive component, has a crosslinked structure, and therefore the formed film has, for example, excellent abrasion resistance.

[0019] As will be explained in more detail later, the catalyst may be included in the composition according to one embodiment (the first composition), or it may be included in a second composition that is different from the first composition.

[0020] In this disclosure, "lightness of spread" means the feeling that the composition, according to one embodiment, glides lightly over an object to which it is applied.

[0021] In this disclosure, "uniform film" means a state in which there is no unevenness in film thickness or distortion of the film formed by the crosslinking reaction. The uniformity of the film can be confirmed visually by a panel of experts. For example, Figure 1A shows an example of a film made by a composition according to one embodiment that is uniform. Figure 1B shows an example of a film made by a composition according to one embodiment that is not uniform. Unevenness in film thickness and distortion of film thickness can be easily confirmed visually by including a colorant such as a pigment in the composition according to one embodiment (first composition) or the composition containing a crosslinking reactive component with the first composition (second composition). In particular, it is easier to confirm unevenness and distortion if the composition applied to the upper side of the first and second compositions contains a colorant.

[0022] There are no particular restrictions on the film thickness of the film formed by the composition according to one embodiment, and it can be appropriately selected according to the purpose. For example, the lower limit can be 1 μm or more, 5 μm or more, 10 μm or more, 30 μm or more, 50 μm or more, 70 μm or more, 90 μm or more, 100 μm or more, 110 μm or more, 120 μm or more, 130 μm or more, 140 μm or more, or 150 μm or more. There are also no particular restrictions on the upper limit of the film thickness of the film formed by the composition according to one embodiment, and it can be 300 μm or less, 250 μm or less, or 200 μm or less. The upper and lower limits of the film thickness formed by the composition according to one embodiment can be appropriately combined, for example, 1 μm to 300 μm, 5 μm to 300 μm, 10 μm to 300 μm, 30 μm to 300 μm, 50 μm to 300 μm, 70 μm to 300 μm, 90 μm to 300 μm, 100 μm to 300 μm, 110 μm to 250 μm, 120 μm to 250 μm, 130 μm to 200 μm, 140 μm to 200 μm, or 150 μm to 200 μm.

[0023] When a composition according to one embodiment is used, for example, as a base composition for cosmetics such as foundation, the film can typically be applied to the entire face. In this case, if the film is thick, the entire face may feel tight due to the crosslinking shrinkage of the film. Therefore, in such cases, it is preferable to make the film thin, to 30 μm or less, 10 μm or less, or 5 μm or less.

[0024] In this disclosure, the thickness of a film made with a composition according to one embodiment is defined as the average value calculated by measuring the thickness of any portion of the film peeled off from the object to be coated five times using a high-precision digital micrometer (MDH-25MB, manufactured by Mitutoyo Corporation).

[0025] In this disclosure, "scratchy resistance" means that when the film formed by the crosslinking reaction is dried on a hot plate at 32°C for 5 minutes under relative humidity of 35±5%, and then rubbed with a metal spatula with a force of 2N to 3N, the degree of peeling of the film is "none" or "little". Specifically, this can be confirmed by the method described in the section "<<Evaluation of film uniformity>>" of the examples.

[0026] In this disclosure, the term "crosslinking" also encompasses the concept of "hardening."

[0027] In this disclosure, “subject,” “object,” “applied object,” and “body” mean the part to which the composition of this disclosure is applied.

[0028] In this disclosure, the terms "film" and "cured film" are used interchangeably.

[0029] In this disclosure, "coating film" means a film (coated film) consisting solely of the composition according to one embodiment, i.e., an uncured film. The coating film includes both the undried state immediately after application of the composition according to one embodiment and the dried state.

[0030] In this disclosure, "first composition" and "second composition" refer to compositions containing components for forming films with each other, but the numbers are used separately for convenience and do not prescribe an order of application. Therefore, the second composition may be applied on top of the first composition, or the first composition may be applied on top of the second composition.

[0031] According to one embodiment, for example, first, a first composition whose composition meets the above-described conditions is applied to the skin. Next, an arbitrary second composition is applied to the skin to which the first composition has been applied. According to this embodiment, since the first composition spreads easily and can be applied uniformly, the uniformity of the film is improved compared to when a composition that does not meet the above conditions is used as the first composition.

[0032] According to another embodiment, for example, first, an arbitrary second composition is applied to the skin. Next, a first composition whose composition meets the above-described conditions is applied to the skin to which the second composition has been applied. According to this embodiment, since the first composition spreads easily and can be applied uniformly, the application of the first composition can suppress deformation of the surface shape of the second composition, thereby forming a uniform film.

[0033] There are no particular restrictions on the application method of the first and second compositions, and examples include spreading the composition using a jig (e.g., a finger, a coater, etc.), spraying, stamping, etc.

[0034] In this disclosure, "uniform application" means that when applying the second composition onto the first composition, the first composition does not wrinkle or such wrinkling is suppressed by the application pressure, or when applying the first composition onto the second composition, the second composition does not wrinkle or such wrinkling is suppressed by the application pressure. There are no particular limitations on the application method that can achieve such application, and examples include: a method of spreading the composition according to one embodiment with a jig (for example, a finger, a coater, a brush, or a silicone spatula or brush, etc.); a method of filling a sprayer, etc., with the composition according to one embodiment and spraying it (sometimes referred to as a "spray method" or "aerosol method"); and a method of applying the composition according to one embodiment to a sponge and stamping it onto the object to be applied via the sponge.

[0035] [viscosity] The viscosity of the composition according to one embodiment at 30°C is not particularly limited and can be appropriately selected depending on the purpose, but it is preferably 1,000 mPa·s or more and 50,000 mPa·s or less. The viscosity of the composition according to one embodiment at 30°C may be 2,000 mPa·s or more and 30,000 mPa·s or less, 3,000 mPa·s or more and 20,000 mPa·s or less, or 5,000 mPa·s or more and 15,000 mPa·s or less. When the viscosity of the composition according to one embodiment at 30°C is 1,000 mPa·s or more and 50,000 mPa·s or less, it is possible to form a film that is easier to spread and is more uniform. In particular, when the viscosity is 5,000 mPa·s or more and 15,000 mPa·s or less, the ease of spreading and the uniformity of the formed film are significantly improved.

[0036] The viscosity of a composition according to one embodiment at 30°C is the viscosity measured at 30°C using a B-type viscometer (for example, TVB-10, manufactured by Toki Sangyo Co., Ltd.) after placing the composition in a constant temperature bath at 30°C for 1 hour.

[0037] In this disclosure, "viscosity" refers to a measure of the resistance of a fluid being deformed by either shear stress or tensile stress. For example, the viscosity of a composition according to one embodiment at 30°C affects the thickness, ductility, and uniformity and / or homogeneity of the layer formed on the substrate.

[0038] [Dosage Form] There are no particular limitations on the dosage form of the composition according to one embodiment. Examples include a single-phase system composed of an oil phase in an anhydrous form, a non-emulsified oil-in-water or water-in-oil two-phase system, and a two-phase system composed of an oil-in-water emulsion or water-in-oil emulsion. Furthermore, if the first composition and / or the second composition are separated into water and oil, these agents may be shaken to forcibly form a two-phase system (oil-in-water or water-in-oil) from the viewpoint of crosslinking reactivity between the first and second compositions. Among these, the dosage form of the composition according to one embodiment is preferably a single-phase system composed of an oil phase in an anhydrous form. Each of these dosage forms can be appropriately prepared by conventional methods using an unsaturated organopolysiloxane, a plurality of particles with an average primary particle diameter of 100 nm or less, a monohydric aliphatic alcohol, and optionally other components.

[0039] <Unsaturated organopolysiloxanes> There are no particular restrictions on the unsaturated organopolysiloxane; for example, organopolysiloxanes having at least two carbon-carbon double bonds in the molecule, or organopolysiloxanes having at least one carbon-carbon triple bond in the molecule, are examples. Among these, one or more organopolysiloxanes are preferred as unsaturated organopolysiloxanes having, on average, at least two alkenyl groups (e.g., vinyl groups) and a viscosity of 50 cSt to 2,000,000 cSt at 25°C.

[0040] In this disclosure, "unsaturated portion" means a portion having a "carbon-carbon double bond" and a "carbon-carbon triple bond," which may be simply referred to as "double bond" and "triple bond." Unsaturated organopolysiloxanes may be used individually or in combination of two or more.

[0041] Unsaturated organopolysiloxanes may contain unsaturated portions (double or triple bond portions) in the terminal units of the polymer, in the non-terminal monomer units of the polymer, or in combination thereof.

[0042] There are no particular restrictions on the double bond-containing monomer units in the unsaturated organopolysiloxane; on average, they may be separated 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.

[0043] There are no particular restrictions on the content of the unsaturated portion of the unsaturated organopolysiloxane, but examples of lower limits include 0.001 mmol / g or more, 0.005 mmol / g or more, 0.010 mmol / g or more, 0.050 mmol / g or more, or 0.10 mmol / g or more. Similarly, there are no particular restrictions on the upper limit of the content of the unsaturated portion of the unsaturated organopolysiloxane, but examples of upper limits include 5.0 mmol / g or less, 3.0 mmol / g or less, 1.0 mmol / g or less, 0.50 mmol / g or less, 0.40 mmol / g or less, 0.30 mmol / g or less, 0.25 mmol / g or less, 0.20 mmol / g or less, or 0.15 mmol / g or less. The upper and lower limits for the content of the unsaturated portion of unsaturated organopolysiloxanes can be combined as appropriate, for example, 0.001 mmol / g to 5.0 mmol / g, 0.001 mmol / g to 3.0 mmol / g, 0.001 mmol / g to 1.0 mmol / g, 0.001 mmol / g to 0.50 mmol / g, 0.001 mmol / g to 0.40 mmol / g, 0.005 mmol / g to 0.30 mmol / g, 0.010 mmol / g to 0.25 mmol / g, 0.050 mmol / g to 0.20 mmol / g, or 0.10 mmol / g to 0.15 mmol / g. The content (approximate molar amount) of the unsaturated portion in an unsaturated organopolysiloxane can be calculated based on the volume-average molecular weight of the unsaturated organopolysiloxane.

[0044] There are no particular restrictions on the viscosity of unsaturated organopolysiloxanes at 25°C, but examples of lower limits include 50 cP or higher, 70 cP or higher, 100 cP or higher, 130 cP or higher, 150 cP or higher, 300 cP or higher, 500 cP or higher, 700 cP or higher, 1,000 cP or higher, 5,000 cP or higher, 10,000 cP or higher, 20,000 cP or higher, 40,000 cP or higher, 60,000 cP or higher, 80,000 cP or higher, 100,000 cP or higher, 125,000 cP or higher, or 150,000 cP or higher. Furthermore, there are no particular restrictions on the upper limit of the viscosity of unsaturated organopolysiloxanes at 25°C. Examples include 2,000,000 cP or less, 1,000,000 cP or less, 500,000 cP or less, 450,000 cP or less, 400,000 cP or less, 350,000 cP or less, 300,000 cP or less, 250,000 cP, 200,000 cP or less, 180,000 cP or less, 170,000 cP or less, and 165,000 cP or less. The upper and lower limits of viscosity at 25°C for unsaturated organopolysiloxanes can be combined as appropriate, for example: 50 cP to 2,000,000 cP, 70 cP to 2,000,000 cP, 100 cP to 2,000,000 cP, 130 cP to 2,000,000 cP, 150 cP to 2,000,000 cP, 300 cP to 2,000,000 cP, 500 cP to 2,000,000 cP, 700 cP to 2,000,000 cP, 1,000 cP to 2,000,000 cP, 1,000 Examples include viscosity ranges of 1,000,000 cP or more, 1,000 cP or more and 500,000 cP or less, 5,000 cP or more and 450,000 cP or less, 10,000 cP or more and 400,000 cP or less, 20,000 cP or more and 350,000 cP or less, 40,000 cP or more and 300,000 cP or less, 60,000 cP or more and 250,000 cP or less, 80,000 cP or more and 200,000 cP or less, 100,000 cP or more and 180,000 cP or less, 125,000 cP or more and 170,000 cP or less, and 150,000 cP or more and 165,000 cP or less. The viscosity of unsaturated organopolysiloxanes at 25°C can be measured using a known viscometer.

[0045] There are no particular restrictions on the volume-average molecular weight of unsaturated organopolysiloxanes. For example, the lower limits include 30,000 Da or more, 35,000 or more, 40,000 or more, 50,000 or more, 60,000 or more, 72,000 Da or more, 84,000 Da or more, 96,000 Da or more, 100,000 Da or more, 140,000 Da or more, and 150,000 Da or more. The upper limits for the volume-average molecular weight of unsaturated organopolysiloxanes include 500,000 Da or less, 200,000 Da or less, 190,000 Da or less, 180,000 Da or less, 170,000 Da or less, 160,000 Da or less, and 155,000 Da or less. The upper and lower limits of the volume-average molecular weight of unsaturated organopolysiloxanes can be combined as appropriate. For example, they can be 30,000 Da to 500,000 Da, 35,000 to 500,000 Da, 40,000 to 500,000 Da, 50,000 to 500,000 Da, 60,000 to 500,000 Da, 72,000 Da to 200,000 Da, 84,000 Da to 190,000 Da, 96,000 Da to 180,000 Da, 100,000 Da to 170,000 Da, 140,000 Da to 160,000 Da, 150,000 Da to 155,000 Da, and so on. The volume-average molecular weight of unsaturated organopolysiloxanes can be determined by gel permeation chromatography (GPC).

[0046] As the unsaturated organopolysiloxane, for example, at least one unsaturated organopolysiloxane selected from the group consisting of organopolysiloxanes having vinyl groups, vinyl-terminated organopolysiloxanes, and organopolysiloxanes having vinyl-terminated branched chains can be used.

[0047] Specific examples of unsaturated organopolysiloxanes 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, vinyl-methylsiloxane-dimethylsiloxane copolymer, trimethylsiloxy-terminated vinylmethylsiloxane-dimethylsiloxane copolymer, silanol-terminated vinylmethylsiloxane-dimethylsiloxane copolymer, vinyl methylsiloxane homopolymer, vinyl T-structure polymer, vinyl Q-structure polymer, monovinyl-terminated polydimethylsiloxane, vinyl methylsiloxane terpolymer, and vinyl methoxysilane homopolymer. These may be used individually or in combination of two or more types. Among these, vinyl-terminated polydimethylsiloxane is preferred as the unsaturated organopolysiloxane, and vinyl dimethicone (divinyldimethicone) is more preferred.

[0048] In this disclosure, "end" means either a single end or both ends. When distinguishing between them, for example, "vinyl single end" and "vinyl double end" may be used.

[0049] The ratio of the mass of unsaturated organopolysiloxane to the mass of the composition according to one embodiment is less than 50% by mass, but is preferably 45% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, and particularly preferably 25% by mass or less. Furthermore, there is no particular limit to the lower limit of the ratio of the mass of unsaturated organopolysiloxane to the mass of the composition according to one embodiment, and it can be appropriately selected depending on the purpose, but from the viewpoint of ease of spread, 2% by mass or more is preferred, from the viewpoint of film abrasion resistance, 5% by mass or more is more preferred, even more preferably 10% by mass or more, and from the viewpoint of film uniformity, 20% by mass or more is particularly preferred. The upper and lower limits of the ratio of the mass of unsaturated organopolysiloxane to the mass of the composition according to one embodiment can be appropriately combined, for example, 2% by mass or more and less than 50% by mass, 5% by mass or more and 45% by mass or less, 10% by mass or more and 40% by mass or less, 20% by mass or more and 30% by mass or less, or 20% by mass or more and 25% by mass or less. If the ratio of the mass of unsaturated organopolysiloxane to the mass of the composition according to one embodiment is 50% by mass or more, the lightness of the spread becomes insufficient.

[0050] <Multiple particles with an average primary particle diameter of 100 nm or less> In one embodiment, the composition contains a plurality of particles with an average primary particle diameter of 100 nm or less, thereby improving the uniformity of the film and its abrasion resistance.

[0051] There are no particular restrictions on the multiple particles (hereinafter sometimes abbreviated as "multiple particles" or "particles") having an average primary particle diameter of 100 nm or less. They can be appropriately selected according to the purpose, and may be inorganic particles or organic particles. They may also be hydrophobic particles obtained by hydrophobicizing inorganic or organic particles. The multiple particles may include spherical or substantially spherical particles, or plate-shaped particles. These may be used individually or in combination of two or more types.

[0052] The average primary particle diameter of the multiple particles is 100 nm or less, but is preferably 70 nm or less, 50 nm or less, or 30 nm or less, more preferably 20 nm or less, 18 nm or less, or 16 nm or less, and even more preferably 15 nm or less, 13 nm or less, 12 nm or less, 11 nm or less, 10 nm or less, less than 10 nm, or 9 nm or less. There is no particular limit to the lower limit of the average primary particle diameter of the multiple particles; for example, it can be 1 nm or more, 3 nm or more, or 5 nm or more. The upper and lower limits of the average primary particle diameter of multiple particles can be combined as appropriate. For example, they can be 1 nm to 70 nm, 1 nm to 50 nm, 1 nm to 30 nm, 3 nm to 20 nm, 3 nm to 18 nm, 3 nm to 16 nm, 5 nm to 15 nm, 5 nm to 13 nm, 5 nm to 12 nm, 5 nm to 11 nm, 5 nm to 10 nm, 5 nm to less than 10 nm, or 5 nm to 9 nm.

[0053] In a composition according to one embodiment, the average primary particle diameter of a plurality of particles refers to the particle diameter (area circle equivalent particle diameter) when converted to a circular particle having the same area as the projected area of ​​the particle observed with a transmission electron microscope. The area circle equivalent particle diameter is defined as the average value of 10 or more particles.

[0054] -Inorganic particles- There are no particular restrictions on the components that make up the inorganic particles. For example, talc, kaolin, mica (e.g., sericite, muscovite, phlogopite, synthetic mica, synthetic iron phlogopite, rose mica, biotite, etc.), calcined talc, calcined mica (e.g., calcined sericite, calcined muscovite, calcined phlogopite, etc.), vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, calcium aluminum borosilicate, tungstic acid. Examples include metal salts, magnesium, silica, alumina, titanium, titanium oxide, silicon dioxide, zeolite, aluminum hydroxide, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soaps (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, photochromic titanium oxide (e.g., titanium dioxide sintered from iron oxide, etc.), and reduced zinc oxide.

[0055] Furthermore, inorganic pigments (sometimes referred to as "inorganic coloring pigments") can also be used as components constituting the inorganic particles. Examples of inorganic pigments include inorganic white pigments (e.g., titanium dioxide, zinc oxide, etc.); inorganic red pigments (e.g., iron oxide (red iron oxide), iron titanate, etc.); inorganic brown pigments (e.g., γ-iron oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide, ochre, etc.); inorganic black pigments (e.g., black iron oxide, lower titanium dioxide, etc.); inorganic purple pigments (e.g., mango violet, cobalt violet, etc.); inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.); or inorganic blue pigments (e.g., ultramarine, Prussian blue, etc.).

[0056] Furthermore, luminous powders can be used as multiple particles. Examples of luminous powders include pearl pigments and metal powder pigments. There are no particular restrictions on pearl pigments, and examples include bismuth oxychloride, fish scale foil, titanium mica, iron oxide-coated titanium mica, lower titanium oxide-coated titanium mica, photochromic titanium mica, talc, glass, synthetic fluorophlogopite, silica, bismuth oxychloride, etc., used as a substrate instead of mica, and coatings other than titanium oxide, such as lower titanium oxide, colored titanium oxide, iron oxide, alumina, silica, zirconia, zinc oxide, cobalt oxide, aluminum, etc., are used as coatings; as functional pearl pigments, examples include pearl pigments coated with resin particles, pearl pigments coated with aluminum hydroxide particles, pearl pigments coated with zinc oxide particles, and pearl pigments coated with barium sulfate particles. There are no particular restrictions on metal powder pigments, and examples include aluminum powder and copper powder.

[0057] -Organic particles- There are no particular restrictions on the components that make up the organic particles. Examples include silicone elastomers, silicones, silicone resin-coated silicone elastomers, polyamide resins (e.g., nylon), polyolefin resins (e.g., polyethylene), polymethyl methacrylate, polystyrene, copolymer resins of styrene and acrylic acid, benzoguanamine resins, fluororesins (e.g., polytetrafluoroethylene), starch (e.g., aluminum starch octenylsuccinate), crosspolymers, and cellulose.

[0058] There are no particular restrictions on the crosspolymers used; examples include (HDI / trimethylol hexyllactone) crosspolymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer, and (IPDI / poly(1,4-butanediol)-14) crosspolymer. "HDI" is an abbreviation for hexamethylene diisocyanate, and "IPDI" is an abbreviation for isophorone diisocyanate.

[0059] Furthermore, organic pigments (sometimes referred to as "organic coloring pigments") and / or dyes can be used as components constituting the organic particles. Examples of organic pigments include zirconium, barium, or aluminum lake. Specific examples of organic pigments include Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205, Yellow 401, and Blue 404, as well as Red 3, Red 104, Red 106, Red 227, Red 230, Red 401, Red 505, Orange 205, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Green 3, and Blue 1.

[0060] Examples of pigments include natural pigments. Specific examples of natural pigments include chlorophyll, β-carotene, caramel, carmine, carminic acid, laccaic acid, calsamine, brazilin, crocin, salol yellow, hibiscus pigment, capsaicin, laccaic acid, glucumin, riboflavin, and shikonin.

[0061] -Hydrophobic particles- Hydrophobic particles can be obtained by using the inorganic particles or organic particles as raw material particles and treating them, for example, with a surface treatment agent capable of exhibiting hydrophobic properties.

[0062] Examples of such surface treatment agents include silylation agents, fatty acids, metal soaps, oils and fats, waxes, silicone compounds (e.g., carboxydecyltrisiloxane, dimethicone, acrylic-silicone graft copolymers, etc.), fluorine compounds, hydrocarbons, surfactants, dextrin fatty acid esters (e.g., dextrin palmitate, etc.), polyglycerin fatty acid esters (e.g., polyglyceryl-2 tetraisostearate, etc.), amino acids (e.g., lauroyl lysine, etc.), and distearyldimonium chloride. These may be used individually or in combination of two or more.

[0063] There are no particular restrictions on the silylation agent, and it can be appropriately selected depending on the purpose. Examples include chlorosilanes such as chlorotrimethylsilane, dichlorodimethylsilane, and trichloromethylsilane; alkoxysilanes such as monomethyltrimethoxysilane and monomethyltriethoxysilane; silazanes such as hexamethyldisilazane and hexamethylcyclotrisilazane; siloxanes such as hexamethylsiloxane and octamethyltrisiloxane; and cyclic siloxanes such as siloxane octamethylcyclotetrasilazane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane. These may be used individually or in combination of two or more.

[0064] There are no particular restrictions on the fatty acids used, and they can be appropriately selected depending on the purpose, but saturated or unsaturated fatty acids with 6 or more carbon atoms are preferred. Examples of saturated or unsaturated fatty acids with 6 or more carbon atoms include myristic acid, stearic acid, and lauric acid.

[0065] There are no particular restrictions on the metal soaps used; they can be appropriately selected depending on the purpose. Examples include zinc myristate, calcium palmitate, and aluminum stearate.

[0066] In this disclosure, "hydrophobic" means having low affinity for water. Hydrophobicity can be evaluated, for example, by visually observing a sample of 50 g of deionized water and 0.1 g of the evaluation particles in a transparent, sealed container, stored at 50°C for one day. Specifically, if the majority of the evaluation particles (e.g., 50% or more of the evaluation particles) are located near the surface of the deionized water (e.g., within the area approximately 1 cm below the water surface), the particles can be evaluated as "hydrophobic." Furthermore, if the specific gravity of the particles being evaluated is high (e.g., a specific gravity of 3.0 g / cm³), then... 3 Over 5.0 g / cm³ 3In the cases described above, "hydrophobicity" can also be evaluated by the following method instead of the aforementioned evaluation method. For example, when deionized water is dropped onto a container filled with particles in an atmosphere of 25°C, if the water forms droplets that roll around on the surface, it can be evaluated as "hydrophobic."

[0067] There are no particular restrictions on the method for hydrophobicating the raw material particles of hydrophobic particles, as long as it can impart water repellency, and any known method can be appropriately selected. Examples include gas-phase methods, liquid-phase methods, autoclave methods, and mechanochemical methods.

[0068] For example, when adding a hydrophobic treatment agent to raw material particles for treatment, it may be added after dilution in a suitable solvent (e.g., dichloromethane, chloroform, hexane, ethanol, xylene, volatile silicone oil, etc.), or it may be added directly.

[0069] For mixing and stirring the raw material particles and hydrophobic treatment agents, ball mills, Hodgersite ball mills, vibrating ball mills, attritors, pot mills, rod mills, pan mills, homomixers, homodispersers, Henschel mixers, Nauter mixers, etc., can be used.

[0070] In addition, other methods can be used, such as a method that utilizes the activity of the raw material particle surface to polymerize cyclic organosiloxanes on the powder surface at a low temperature of 100°C or less by gas-phase reaction (see Japanese Patent Publication No. 1-54380), or a method that adds pendant groups such as glycerol monoallyl ether to the Si-H portion of the silicone polymer on the surface after the above method (see Japanese Patent Publication No. 1-54381).

[0071] These particles may be used individually or in combination of two or more. Among these, hydrophobic particles are preferred, and hydrophobic inorganic oxide particles are more preferred. As hydrophobic inorganic oxide particles, inorganic oxide particles that have been hydrophobized with chlorosilanes are preferred, and inorganic oxide particles that have been hydrophobized by at least one treatment selected from the group consisting of dimethylsilylation treatment and trimethylsilylation treatment are more preferred. Furthermore, there are no particular restrictions on the inorganic oxide particles used as raw material particles for hydrophobic inorganic oxide particles, and examples include zinc oxide, titanium oxide, aluminum oxide, and silicon oxide (e.g., fumed silica, anhydrous silica, etc.). These may be used individually or in combination of two or more. Among these, at least one selected from the group consisting of silicon oxide, titanium oxide, and zinc oxide is preferred, and silicon oxide is more preferred.

[0072] The ratio of the total mass of the multiple particles to the mass of the composition according to one embodiment is less than 20% by mass, but from the viewpoint of ease of spreading, it is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less. Furthermore, there is no particular limit to the lower limit of the ratio of the total mass of the multiple particles to the mass of the composition according to one embodiment, and it can be appropriately selected depending on the purpose, but from the viewpoint of ease of spreading and abrasion resistance, it is preferably 0.5% by mass or more, and more preferably 1% by mass or less. The upper and lower limits of the ratio of the total mass of the multiple particles to the mass of the composition according to one embodiment can be appropriately combined, for example, it can be 0.5% by mass or more and less than 20% by mass, 1% by mass or less and 15% by mass or less, 1% by mass or more and 10% by mass or less, or 1% by mass or more and 5% by mass or less. If the ratio of the total mass of the multiple particles to the mass of the composition according to one embodiment is 20% by mass or more, the ease of spreading will be insufficient.

[0073] <Monovalent aliphatic alcohols> In one embodiment, the composition containing a monohydric aliphatic alcohol improves its spreadability. Furthermore, compared to cases where an alcohol other than a monohydric aliphatic alcohol is used, both the spreadability and the uniformity of the film are improved.

[0074] There are no particular restrictions on the number of carbon atoms in the monohydric aliphatic alcohol, and it can be appropriately selected depending on the purpose, but it is preferably 10 or less, more preferably 8 or less, and even more preferably 6 or less. The smaller the number of carbon atoms in the monohydric aliphatic alcohol, the smaller the molecular weight and the higher the volatility. As a result, for example, when the above composition is applied to the skin, the period during which the composition remains on the skin is shortened.

[0075] Specific examples of monohydric aliphatic alcohols include ethanol, propanol, isopropyl alcohol, and butanol. These may be used individually or in combination of two or more. Among these, ethanol is preferred as the monohydric aliphatic alcohol.

[0076] There are no particular restrictions on the ratio of the mass of monohydric aliphatic alcohol to the mass of the composition according to one embodiment, and it can be appropriately selected depending on the purpose, but it is preferable that the upper limit is 30% by mass or less. This results in a composition with excellent spreadability. Although the mechanism is not entirely clear, the inventors have found that when the ratio of the mass of monohydric aliphatic alcohol to the mass of the composition is above a certain level, the smaller the ratio, the better the spreadability and abrasion resistance. Therefore, from the viewpoint of spreadability and abrasion resistance, it is preferable that the upper limit of the ratio of the mass of monohydric aliphatic alcohol to the mass of the composition according to one embodiment is less than 30% by mass, and more preferably 25% by mass or less. Furthermore, from the viewpoint of film uniformity, it is preferable that the upper limit of the ratio of the mass of monohydric aliphatic alcohol to the mass of the composition according to one embodiment is less than 25% by mass.

[0077] Also, there is no particular limitation on the lower limit of the mass ratio of the monohydric aliphatic alcohol to the mass of the composition according to one embodiment, and it can be appropriately selected according to the purpose. However, 0.5% by mass or more is preferable, 1% by mass or more is more preferable, 3% by mass or more is further preferable, and 5% by mass or more is particularly preferable. The upper limit and the lower limit of the mass ratio of the monohydric aliphatic alcohol to the mass of the composition according to one embodiment can be appropriately combined. For example, it can be 0.5% by mass or more and 30% by mass or less, 1% by mass or less and less than 30% by mass, 3% by mass or more and 25% by mass or less, or 5% by mass or more and less than 25% by mass, etc. When the mass ratio of the monohydric aliphatic alcohol to the mass of the composition according to one embodiment is 30% by mass or less, the elongation and lightness are good.

[0078] <Hydride-functionalized polysiloxane> The composition according to one embodiment may contain a hydride-functionalized polysiloxane. The hydride-functionalized polysiloxane is a polysiloxane having a hydride group (Si-H group). There is no particular limitation on the hydride-functionalized polysiloxane, and examples thereof include compounds represented by the following general formula (1).

[0079] [Chemical formula]

[0080] In the general 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 selected from the group consisting of hydrogen, alkyl having 1 to 20 carbon atoms, alkenyl having 2 to 20 carbon atoms, aryl having 5 to 10 carbon atoms, hydroxyl, or alkoxy having 1 to 20 carbon atoms, and m and n are each independently integers of 10 to 6,000. However, R 1b , R 2b , R 3b , R4b , R 5b , R 6b , R 7b , R 8b , R 9b , and R 10b At least one of them is hydrogen.

[0081] In this disclosure, “independently” means R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , R 9b , and R 10b However, this means that they may be the same or different.

[0082] 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 alkyl groups with 1 to 20 carbon atoms.

[0083] 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 them are hydrogen atoms (for example, hydride-functionalized polysiloxanes have two Si-H groups per molecule).

[0084] Other embodiments, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R7b , R 8b , R 9b , and R 10b At least three of them are hydrogen (for example, having three Si-H groups per molecule of hydride-functionalized polysiloxane).

[0085] 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 them are hydrogen (for example, having two Si-H groups per molecule of hydride-functionalized polysiloxane), and the rest are alkyl groups having 1 to 20 carbon atoms.

[0086] 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 them are hydrogen (for example, having three Si-H groups per molecule of hydride-functionalized polysiloxane), and the rest are alkyl groups having 1 to 20 carbon atoms.

[0087] In some embodiments, R 4b , R 5b , R 9b , and R 10b At least two of them are hydrogen (for example, having two Si-H groups per molecule of hydride-functionalized polysiloxane), and the rest are alkyl groups having 1 to 20 carbon atoms.

[0088] In other embodiments, R 4b , R 5b , R 9b , and R 10bAt least three of them are hydrogen (for example, having three Si-H groups per molecule of the hydride-functionalized polysiloxane), and the rest are alkyls having 1 to 20 carbon atoms.

[0089] 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.

[0090] In some embodiments, examples of the hydride-functionalized polysiloxane include organopolysiloxanes hydrogenated at non-terminal and / or terminal positions, and it is composed of one or more organopolysiloxanes having at least two Si-H groups in the molecule. Preferably, it includes one or more organopolysiloxanes having an average of at least two Si-H groups and a viscosity of 2 to 100,000 cSt at 25°C.

[0091] In one embodiment, the hydride-functionalized polysiloxane may contain such Si-H groups in the terminal units of the polymer, in the non-terminal monomer units of the polymer, or in combinations thereof. Among these, it is preferable that the Si-H groups are contained in the non-terminal monomer units of the polymer. In this case, the hydride-functionalized polysiloxane may be alkyl-terminated. For example, in the general formula (1), R 2b and R 7b One or both of them may be alkyls having 1 to 20 carbon atoms.

[0092] In one embodiment, in the general formula (1), R 1b 、R 2b 、R 3b 、R 6b 、R 7b 、and R 8b One, two, three, four, five, or six of them may be alkyls having 1 to 20 carbon atoms.

[0093] In one embodiment, R 1b 、R 2b 、R3b , R 4b , R 5b , R 6b , R 7b , R 8b , and R 10b These are alkyl groups with 1 to 20 carbon atoms, for example, an alkyl group with 1 carbon atom (e.g., methyl), and R 9b It may be hydrogen.

[0094] In one embodiment, R 1b , R 2b , R 3b , R 4b , R 5b , R 6b , R 7b , R 8b , and R 9b These are alkyl groups with 1 to 20 carbon atoms, for example, an alkyl group with 1 carbon atom (e.g., methyl), and R 10b It may be hydrogen.

[0095] In one embodiment, the Si-H group-containing monomer units in the hydride-functionalized polysiloxane may be spaced apart on average by 1 monomer unit or more, 2 monomer units or more, 5 monomer units or more, 10 monomer units or more, 20 monomer units or more, 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.

[0096] There are no particular restrictions on the Si-H group content of hydride-functionalized polysiloxanes. For example, the lower limit can be 0.10 mmol / g or more, 0.50 mmol / g or more, 1.0 mmol / g or more, 2.0 mmol / g or more, 3.0 mmol / g or more, or 4.0 mmol / g or more. The upper limit for the Si-H group content of hydride-functionalized polysiloxanes can be, for example, 20 mmol / g or less, 10 mmol / g or less, 9.0 mmol / g or less, 8.0 mmol / g or less, 7.0 mmol / g or less, 6.0 mmol / g or less, or 5.0 mmol / g or less. The approximate molar amount of Si-H groups in hydride-functionalized polysiloxanes can be calculated based on the average molecular weight of the hydride-functionalized polysiloxanes. Furthermore, there are no particular restrictions on the combination of the upper and lower limits for the Si-H group content of the hydride-functionalized polysiloxane; they can be combined as appropriate. For example, they can be 0.10 mmol / g or more and 20 mmol / g or less, 0.10 mmol / g or more and 10 mmol / g or less, 0.50 mmol / g or more and 9.0 mmol / g or less, 1.0 mmol / g or more and 8.0 mmol / g or less, 2.0 mmol / g or more and 7.0 mmol / g or less, 3.0 mmol / g or more and 6.0 mmol / g or less, or 4.0 mmol / g or more and 5.0 mmol / g or less.

[0097] The kinematic viscosity of hydride-functionalized polysiloxane at 25°C is not particularly limited, but is preferably between 2 cSt and 500,000 cSt. The lower limit of the kinematic viscosity of hydride-functionalized polysiloxane is preferably 3 cSt or higher, 4 cSt or higher, 5 cSt or higher, 10 cSt or higher, 12 cSt or higher, 15 cSt or higher, 20 cSt or higher, 25 cSt or higher, 30 cSt or higher, 40 cSt or higher, or 45 cSt or higher. The upper limit of the kinematic viscosity of hydride-functionalized polysiloxane 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, 1,000 cSt or less, 500 cSt or less, 100 cSt or less, or 50 cSt or less. Furthermore, there are no particular restrictions on the combination of the upper and lower limits of the kinematic viscosity of hydride-functionalized polysiloxanes at 25°C; they can be combined as appropriate. Examples include 3 cSt to 200,000 cSt, 4 cSt to 100,000 cSt, 5 cSt to 50,000 cSt, 10 cSt to 20,000 cSt, 12 cSt to 10,000 cSt, 15 cSt to 5,000 cSt, 20 cSt to 2,000 cSt, 25 cSt to 1,000 cSt, 30 cSt to 500 cSt, 40 cSt to 100 cSt, 40 cSt to 50 cSt, or 45 cSt to 50 cSt. Among these, the kinematic viscosity of hydride-functionalized polysiloxane at 25°C is preferably 40 cSt to 100 cSt, more preferably 40 cSt to 50 cSt, and more preferably 45 cSt to 50 cSt.

[0098] There are no particular restrictions on the volume-average molecular weight of the hydride-functionalized polysiloxane, but it is preferably between 400 Da and 500,000 Da. The lower limit of the volume-average molecular weight of the hydride-functionalized polysiloxane is preferably 500 Da or more, 800 Da or more, 900 Da or more, 1,000 Da or more, 1,200 Da or more, 1,400 Da or more, 1,600 Da or more, 1,800 Da or more, 2,000 Da or more, 2,200 Da or more, or 2,300 Da or more. Furthermore, it is more preferable that the upper limit of the volume-average molecular weight of the hydride-functionalized polysiloxane be 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, 4,000 Da or less, or 2,500 Da or less. Furthermore, there are no particular restrictions on the combination of the upper and lower limits of the volume-average molecular weight of hydride-functionalized polysiloxanes; they can be combined as appropriate. For example, 500 Da to 250,000 Da, 500 Da to 140,000 Da, 500 Da to 100,000 Da, 500 Da to 72,000 Da, 500 Da to 62,700 Da, 500 Da to 60,000 Da, 500 Da to 50,000 Da, 8 Examples include 00Da to 49,500Da, 900Da to 36,000Da, 1,000Da to 28,000Da, 1,200Da to 25,000Da, 1,400Da to 20,000Da, 1,600Da to 15,000Da, 1,800Da to 10,000Da, 2,000Da to 5,000Da, 2,200Da to 4,000Da, or 2,300Da to 2,500Da.

[0099] Specific examples of hydride-functionalized polysiloxanes include 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 copolymer. These may be used individually or in combination of two or more. Among these, hydride-terminated polydimethylsiloxane is preferred as the hydride-functionalized polysiloxane, and hydrogen dimethicone is more preferred.

[0100] There are no particular restrictions on the mass ratio of the hydride-functionalized polysiloxane to the mass of the composition according to one embodiment, but the upper limit is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less. There are also no particular restrictions on the lower limit of the mass ratio of the hydride-functionalized polysiloxane to the mass of the composition according to one embodiment, and can be, for example, 1% by mass or more, 2% by mass or more, or 3% by mass or more. The upper and lower limits of the mass ratio of the hydride-functionalized polysiloxane to the mass of the composition according to one embodiment can be combined as appropriate, for example, 1% by mass or more and 15% by mass or less, 1% by mass or more and 10% by mass or less, 2% by mass or more and 10% by mass or less, 2% by mass or more and 5% by mass or less, or 3% by mass or more and 5% by mass or less.

[0101] <Catalyst> A composition according to one embodiment may include a catalyst to promote the reaction between the unsaturated bonds in the unsaturated organopolysiloxane and the Si-H groups in the hydride-functionalized polysiloxane.

[0102] The catalyst is not particularly limited as long as it can promote the reaction between unsaturated bonds (e.g., vinyl groups, etc.) contained in unsaturated organopolysiloxanes and Si-H groups contained in hydride-functionalized polysiloxanes. Examples include any substance capable of causing physical and / or chemical crosslinking or hydrosilylation reactions to unsaturated bonds and / or Si-H groups, promoting crosslinking or hydrosilylation reactions, and / or initiating crosslinking or hydrosilylation reactions. The catalyst may or may not undergo permanent physical and / or chemical changes during or at the end of the process.

[0103] There are no particular restrictions on such catalysts, but it is preferable that the catalyst can induce a crosslinking reaction at a temperature below body temperature, promote the crosslinking reaction, and / or initiate the crosslinking reaction (for example, a metal catalyst). The metal catalyst preferably contains at least one of the following: a transition metal (i.e., an element from groups 3 to 11 or from groups 3 to 12), a metal from group VIII (an element from groups 8 to 10 of the long periodic table), and a metal from group IVA. The metal catalyst may also contain at least one metal selected from the group consisting of iron group elements, manganese group elements, and platinum group elements. The metal catalyst may be the metal itself or a complex of the metal.

[0104] Examples of Group VIII metal catalysts include platinum catalysts, rhodium catalysts, palladium catalysts, iron catalysts, cobalt catalysts, nickel catalysts, manganese catalysts, ruthenium catalysts, osmium catalysts, and iridium catalysts. Examples of Group IVA metal catalysts include germanium catalysts and tin catalysts. These may be used individually or in combination of two or more. Among these, platinum catalysts, rhodium catalysts, or tin catalysts are preferred. Examples of iron catalysts include iron complexes having pincer ligands.

[0105] Examples of platinum catalysts include Speier catalysts (H2PtCl6), Ashby catalysts, platinum carbonylcyclovinylmethylsiloxane complexes, platinum divinyltetramethyldisiloxane complexes, platinum cyclovinylmethylsiloxane complexes, platinum octanealdehyde / octanol complexes, and other Pt(0) catalysts. Examples of other Pt(0) catalysts include Karstedt catalysts, 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-imide complexes, platinum-amide complexes, platinum-ester complexes, platinum-phosphate ester complexes, platinum-thiol ester complexes, platinum lone pair complexes, platinum-aromatic complexes, and platinum π-electron complexes. These may be used individually or in combination of two or more. Among these, at least one selected from the group consisting of platinum carbonylcyclovinylmethylsiloxane complex, platinum divinyltetramethyldisiloxane complex, platinum cyclovinylmethylsiloxane complex, and platinum octanealdehyde / octanol complex is preferred as the platinum catalyst.

[0106] Examples of rhodium catalysts include tris(dibutylsulfide)rhodium trichloride and rhodium trichloride hydrate. These may be used individually or in combination of two or more.

[0107] Examples of tin catalysts include tin(II) octanoate, tin(II) neodecanoate, dibutyltin diisooctyl maleate, di-n-butylbis(2,4-pentanedionate)tin, di-n-butylbutoxychlorotin, dibutyltin dilaurate, dimethyltin dineodecanoate, dimethylhydroxy(oleate)tin, and tin(II) oleate. These may be used individually or in combination of two or more.

[0108] Among these, platinum catalysts are preferred, platinum complex catalysts are more preferred, and Karstedt catalysts, platinum divinyltetramethyldisiloxane complexes, and Ashby catalysts are particularly preferred.

[0109] There are no particular restrictions on the ratio of the mass of the catalyst to the mass of the composition according to one embodiment. For example, the upper limit can be 5.0% by mass or less, 3.0% by mass or less, 1.0% by mass or less, 0.50% by mass or less, 0.10% by mass or less, or 0.050% by mass or less. Similarly, there are no particular restrictions on the lower limit of the ratio of the mass of the catalyst to the mass of the composition according to one embodiment. For example, it can be 0.001% by mass or more, 0.005% by mass or more, or 0.010% by mass or more. The upper and lower limits of the ratio of the mass of the catalyst to the mass of the composition according to one embodiment can be appropriately combined, for example, 0.001% by mass or more and 5.0% by mass or less, 0.001% by mass or more and 3.0% by mass or less, 0.005% by mass or more and 1.0% by mass or less, 0.005% by mass or more and 0.50% by mass or less, 0.010% by mass or more and 0.10% by mass or less, or 0.010% by mass or more and 0.050% by mass or less.

[0110] <Water> A composition according to one embodiment may contain water.

[0111] There are no particular restrictions on the type of water used; for example, water used in cosmetics or quasi-drugs can be used. For example, ion-exchanged water, distilled water, ultrapure water, tap water, etc., can be used. These may be used individually or in combination of two or more types.

[0112] There are no particular restrictions on the ratio of the mass of water to the mass of the composition according to one embodiment. For example, the upper limit can be 51% by mass or less, 40% by mass or less, 30% by mass or less, or 20% by mass or less. There are also no particular restrictions on the lower limit of the ratio of the mass of water to the mass of the composition according to one embodiment. For example, it can be 1% by mass or more, 5% by mass or more, 10% by mass or more, 20% by mass or more, 30% by mass or more, or 40% by mass or more. The upper and lower limits of the ratio of the mass of water to the mass of the composition according to one embodiment can be combined as appropriate. Examples include 1% by mass or more and 51% by mass or less, 5% by mass or more and 51% by mass or less, 10% by mass or more and 51% by mass or less, 20% by mass or more and 51% by mass or less, 30% by mass or more and 51% by mass or less, 40% by mass or more and 51% by mass or less, 1% by mass or more and 40% by mass or less, 5% by mass or more and 50% by mass or less, 10% by mass or more and 50% by mass or less, 10% by mass or more and 30% by mass or less, or 10% by mass or more and 20% by mass or less.

[0113] When the ratio of the mass of water to the mass of the composition according to one embodiment is 51% by mass or less, preferably 10% by mass or more and 51% by mass or less, the composition according to one embodiment is suitable as a two-phase composition composed in the form of an oil-in-water emulsion or an oil-in-water emulsion.

[0114] <Other ingredients> A composition according to one embodiment may contain other components besides those described above. These other components are not particularly limited and can be appropriately selected depending on the purpose. Examples include texture modifiers, tack modifiers, spreadability enhancers, diluents, adhesion modifiers, oils other than unsaturated organopolysiloxanes, emulsifiers (surfactants), humectants, preservatives, colorants other than multiple particles (e.g., dyes), fabrics, rubber materials (e.g., rubber sheets made of silicone rubber), components that thicken the aqueous or oil phase (e.g., thickeners), protective colloidal agents, skin permeability enhancers, optical modifiers, scattering agents, adsorbents, magnetic materials, gas transport modifiers, liquid transport modifiers, pH modifiers, sensitizing modifiers, aesthetic modifiers, antioxidants, vitamins, vitamin D3 analogs, retinoids, minerals, mineral oils, petrolatum, fatty acids, plant extracts, polypeptides, antibodies, proteins, sugars, humectants, and emollients.

[0115] Furthermore, the composition according to one embodiment may also contain, as other components, for example, moisturizers, UV absorbers, skin protectants, skin soothing agents, skin whitening agents, skin glossing agents, skin softeners, skin smoothing agents, skin bleaching agents, skin exfoliating agents, skin tightening agents, cosmetic agents, vitamins, antioxidants, cell signaling agents, cell regulators, cell interaction agents, skin sunscreens, anti-aging agents, wrinkle inhibitors, spot reducers, α-hydroxy acids, β-hydroxy acids, ceramides, and other cosmetic agents.

[0116] Furthermore, the composition according to one embodiment may also contain, as other components, therapeutic agents such as pain relievers, analgesics, antipruritic agents, antiacids (e.g., β-hydroxy acids, salicylic acid, benzoyl peroxide, etc.), anti-inflammatory agents, antihistamines, corticosteroids, NSAIDs (e.g., nonsteroidal anti-inflammatory drugs, etc.), preservatives, antibiotics, antibacterial agents, antifungal agents, antiviral agents, antiallergic agents, anti-irritants, insect repellents, phototherapy agents, blood coagulants, antineoplastic agents, immune system enhancers, immune system suppressants, coal tar, anthraline, fluocinonide, methotrexate, cyclosporine, pimecrolimus, tacrolimus, azathioprine, fluorouracil, ceramides, counter-irritants, and skin cooling compounds.

[0117] In one embodiment of the composition, these other components may be used individually or in combination of two or more.

[0118] -emulsifier- In the composition according to one embodiment, the emulsifier refers to an agent having emulsifying function (surfactant activity), and can also include agents generally referred to as surfactants.

[0119] There are no particular restrictions on the emulsifier used; for example, anionic, cationic, amphoteric, or nonionic emulsifiers can be used. These may be used individually or in combination of two or more.

[0120] Specifically, examples of emulsifiers include at least one selected from the group consisting of hydrocarbon surfactants, silicone surfactants other than hydride-functionalized polysiloxanes, and amphiphilic powders.

[0121] Examples of hydrocarbon surfactants include polyoxyethylene alkyl ethers, polyoxyethylene steryl ethers, polyoxyethylene fatty acid esters, polyoxyethylene polyhydric alcohol fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid esters, glycol fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, sucrose fatty acid esters, and polyglycerin fatty acid esters.

[0122] Examples of silicone-based surfactants other than hydride-functionalized polysiloxanes include polyether-modified silicones such as PEG-9 polydimethylsiloxyethyl dimethicone, PEG-10 dimethicone, PO / EO-modified silicones (e.g., PEG / PPG-19 / 19 dimethicone), and dimethicone / (PEG-10 / 15) crosspolymer; polyglycerin-alkyl copolymerized silicones such as bisbutyl dimethicone polyglyceryl-3 and cetyl PEG / PPG-10 / 1 dimethicone; and carboxy-modified silicones such as carboxydecyltrisiloxane. Note that "PEG" and "PPG" mean polyethylene glycol and polypropylene glycol, respectively. Also, "PO" and "EO" mean propylene oxide and ethylene oxide, respectively.

[0123] There are no particular restrictions on the ratio of the mass of the emulsifier to the mass of the composition according to one embodiment, but from the viewpoint of emulsification stability, it can be 0.01% by mass or more, 0.05% by mass or more, 0.1% by mass or more, 0.2% by mass or more, 1.0% by mass or more, or 2.0% by mass or more. There are also no particular restrictions on the upper limit of the ratio of the mass of the emulsifier to the mass of the composition according to one embodiment, but it can be 10% by mass or less, 5.0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, or 2.0% by mass or less. The upper and lower limits of the ratio of the mass of the emulsifier to the mass of the composition according to one embodiment can be combined as appropriate, for example, 0.01% by mass or more and 10% by mass or less, 0.01% by mass or more and 5.0% by mass or less, 0.01% by mass or more and 4.0% by mass or less, 0.01% by mass or more and 3.0% by mass or less, 0.01% by mass or more and 2.0% by mass or less, 0.05% by mass or more and 10% by mass or less, 0.05% by mass or more and 5.0% by mass or less, 0.05% by mass or more and 4.0% by mass or less, 0.05% by mass or more and 3.0% by mass or less, 0.05% by mass or more and 2.0% by mass or less, 0.1% by mass or more and 10% by mass or less, 0.1% by mass or more and 5.0% by mass or less, 0.1% by mass or more and 4.0% by mass or less. % or less, 0.1 mass% or more and 3.0 mass% or less, 0.1 mass% or more and 2.0 mass% or less, 0.2 mass% or more and 10 mass% or less, 0.2 mass% or more and 5.0 mass% or less, 0.2 mass% or more and 4.0 mass% or less, 0.2 mass% or more and 3.0 mass% or less, 0.2 mass% or more and 2.0 mass% or less, 1.0 mass% or more and 10 mass% or less 1.0 Examples include 1.0 mass% to 4.0 mass%, 1.0 mass% to 3.0 mass%, 1.0 mass% to 2.0 mass%, 2.0 mass% to 20 mass%, 2.0 mass% to 5.0 mass%, 2.0 mass% to 4.0 mass%, 2.0 mass% to 3.0 mass%.

[0124] -Oil- Other than unsaturated organopolysiloxanes, there are no particular restrictions on the oils, and examples include silicone oils, hydrocarbon oils, polar oils, liquid oils and fats, solid oils and fats, waxes, and ester oils. These may be used individually or in combination of two or more. In this case, if the composition according to one embodiment contains a hydride-functionalized polysiloxane, it is preferable to also contain other oils or oily bases other than the hydride-functionalized polysiloxane.

[0125] The oil may be a non-volatile oil or a volatile oil.

[0126] In this disclosure, "volatile oil" means oil in which 10 g of oil is precisely measured, placed in a screw-cap bottle (50 mL, manufactured by Maruemu Co., Ltd.), and left at atmospheric pressure and 105°C for 3 hours, and the volatile content exceeds 5% by mass. Therefore, the volatile content of the volatile oil may be 10% or more by mass, 20% or more by mass, 40% or more by mass, 50% or more by mass, 60% or more by mass, 80% or more by mass, or 100% by mass, and there is no particular upper limit.

[0127] In this disclosure, "non-volatile" means a solvent in which 10 g of oil is precisely weighed, placed in a screw-cap bottle (50 mL, manufactured by Maruemu Co., Ltd.), and left at atmospheric pressure and 105°C for 3 hours, and the volatile content is 5% by mass or less. Therefore, the volatile content of a non-volatile oil may be 1% by mass or more, or 0% by mass, and there is no particular limit to its lower limit.

[0128] The volatile content of the oil can be calculated using the following formula 1, where "A1" is the mass of the oil initially measured, and "B1" is the mass of the oil remaining after being left for 3 hours at atmospheric pressure and 105°C under the conditions described above. [Formula 1] Volatile content of oil [mass %] = (A1 - B1) / A1 × 100

[0129] Alternatively, the boiling point at 1 atmosphere (101.325 kPa) can be used as a guideline for volatility. This boiling point can be 250°C or below, 240°C or below, or 230°C or below, and can also be 80°C or above, 100°C or above, 120°C or above, 150°C or above, or 160°C or above.

[0130] There are no particular restrictions on the silicone oil used, and it can be appropriately selected depending on the purpose. Examples include acyclic silicone oils and cyclic silicone oils. Examples of acyclic silicone oils include linear silicone oils and branched silicone oils. These may be used individually or in combination of two or more types.

[0131] Examples of cyclic silicone oils include cyclotetrasiloxane and cyclopentasiloxane.

[0132] Examples of volatile acyclic silicone oils include linear silicone oils such as dimethylpolysiloxane (sometimes called "dimethicone") and divinyldisiloxane, which have a kinematic viscosity of 5 cSt or less; and branched silicone oils such as methyltrimethicone, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane.

[0133] Examples of dimethicone with a kinematic viscosity of 5 cSt or less include dimethicone (kinematic viscosity: 0.65 cSt), dimethicone (kinematic viscosity: 1.5 cSt), dimethicone (kinematic viscosity: 1 cSt), dimethicone (kinematic viscosity: 2 cSt), dimethicone (kinematic viscosity: 3 cSt), dimethicone (kinematic viscosity: 4 cSt), and dimethicone (kinematic viscosity: 5 cSt).

[0134] Examples of non-volatile silicone oils include chain-like silicones such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane (diphenylsiloxyphenyl trimethicone), and methylhydrogenpolysiloxane, which have a kinematic viscosity of 6 cSt or higher.

[0135] There are no particular restrictions on the hydrocarbon oils used, and they can be appropriately selected depending on the purpose. Examples include volatile hydrocarbon oils such as hydrogenated polyisobutene, undecane, tridecane, isododecane, alkanes with 9 to 12 carbon atoms, and isohexadecane; and non-volatile hydrocarbon oils such as liquid paraffin, ozokelite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, and olefin oligomers. These may be used individually or in combination of two or more.

[0136] As long as the oil is a volatile polar oil, there are no particular restrictions, and it can be appropriately selected depending on the purpose. Examples include ester oils.

[0137] Examples of non-volatile polar oils include polar oils with an IOB of 0.10 or higher. Examples of such polar oils include isopropyl myristate (IOB value = 0.18), octyl palmitate (IOB value = 0.13), isopropyl palmitate (IOB value = 0.16), butyl stearate (IOB value = 0.14), hexyl laurate (IOB value = 0.17), myristyl myristate (IOB value = 0.11), decyl oleate (IOB value = 0.11), isononyl isononanoate (IOB value = 0.20), and isotridecyl isononanoate (IOB value = 0.1 5) Cetyl ethylhexanoate (IOB value = 0.13), pentaerythrityl tetraethylhexanoate (IOB value = 0.35), diethylhexyl succinate (IOB value = 0.32), dioctyl succinate (IOB value = 0.36), glycol distearate (IOB value = 0.16), glyceryl diisostearate (IOB value = 0.29), neopentyl glycol dicaprate (IOB value = 0.25), diisostearyl malate (IOB value = 0.28), triisostearate Methylolpropane (IOB value = 0.16), Glyceryl tri-2-ethylhexanoate (triethylhexanoin) (IOB value = 0.35), Trimethylolpropane trioctanoate (IOB value = 0.33), Trimethylolpropane triisostearate (IOB value = 0.16), Diisobutyl adipate (IOB value = 0.46), N-lauroyl-L-glutamic acid-2-octyldodecyl ester (IOB value = 0.29), 2-hexyldecyl adipate (IOB value = 0.16) Examples include diisopropyl sebacate (IOB value = 0.40), ethylhexyl methoxycinnamate (IOB value = 0.28), 2-ethylhexyl palmitate (IOB value = 0.13), 2-ethylhexyl ethylhexanoate (IOB value = 0.2), triisostearin (IOB value = 0.16), PPG-3 dipivalate (IOB value = 0.52), and tri(caprylic / capric acid) glyceryl (IOB value = 0.33), cetyl 2-ethylhexanoate (IOB value = 0.13).

[0138] Examples of liquid oils include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, elm oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnamon oil, Japanese tuni oil, jojoba oil, wheat germ oil, and triglycerin.

[0139] Examples of solid fats and oils include cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, sheep fat, hydrogenated beef tallow, palm kernel oil, pork fat, beef bone fat, Japanese wax kernel oil, hydrogenated oil, beef tallow, Japanese wax, and hydrogenated castor oil.

[0140] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, privet wax, whale wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, isopropyl lanolin fatty acid, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether.

[0141] Furthermore, UV absorbers that can be considered as oils can also be used. For example, UV absorbers with an IOB of 0.10 or higher, specifically organic UV absorbers such as ethylhexyl methoxycinnamate, octocrylene, polysilicone-15, t-butyl methoxydibenzoylmethane, ethylhexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylamino hydroxybenzoyl hexyl benzoate, oxybenzone-3, methylene bisbenzotriazolyltetramethylbutylphenol, homosalate, ethylhexyl salicylate, and octyl salicylate.

[0142] There are no particular restrictions on the ratio of the mass of oil to the mass of the composition according to one embodiment, and it can be appropriately blended depending on the type of dosage form used, the required film strength, etc. For example, the upper limit can be 85% by mass or less, 80% by mass or less, 75% by mass or less, 70% by mass or less, 60% by mass or less, 55% by mass or less, 50% by mass or less, 45% by mass or less, 40% by mass or less, or 35% by mass or less. Similarly, there are no particular restrictions on the lower limit of the ratio of the mass of oil to the mass of the composition according to one embodiment, and it can be 5% by mass or more, 10% by mass or more, 15% by mass or more, 20% by mass or more, 25% by mass or more, or 30% by mass or more. The upper and lower limits of the ratio of the mass of oil to the mass of the composition according to one embodiment can be appropriately combined, for example, 5% to 85% by mass, 5% to 80% by mass, 10% to 75% by mass, 10% to 70% by mass, 15% to 60% by mass, 20% to 55% by mass, 25% to 50% by mass, 30% to 45% by mass, 30% to 40% by mass, or 30% to 35% by mass.

[0143] <<Application>> A composition according to one embodiment can be suitably used as a composition for forming a film on an object such as skin. Therefore, a composition according to one embodiment is also a film-forming agent used for the purpose of forming a film, and this film-forming agent is also included in the scope of this disclosure.

[0144] There are no particular limitations on the objects to which the composition according to one embodiment can be applied, and examples include skin, electronic devices, and optical components. Among these, the composition according to one embodiment can be suitably applied to skin. As for skin, it can be applied to any part of the surface of the skin on any part of the animal's body, that is, any part on the body surface, such as the head, face (lips, eyes, nose, cheeks, forehead, etc.), neck, ears, hands, arms, legs, feet, chest, abdomen, back, and buttocks. In this disclosure, skin also includes nails, which are formed when the keratin of the epidermis of the skin changes and hardens.

[0145] The use of the composition according to one embodiment is not particularly limited and can be appropriately selected according to the purpose. Examples include sunscreen cosmetics, base cosmetics, makeup cosmetics (e.g., foundation, gloss, lipstick, eyeshadow, nail polish, etc.), skincare cosmetics (e.g., serum, lotion, emulsion, etc.), or cosmetics that combine two or more of the functions of these cosmetics. Among these, the composition according to one embodiment can be suitably used as a base cosmetic and / or foundation, and is more suitably used as a base cosmetic.

[0146] For example, conventional primer compositions are primarily used as a base for foundation, but after applying them to the skin in layers with foundation, they have problems such as makeup breakdown over time and secondary adhesion to clothing or masks. Therefore, when such problems occur, touch-ups are necessary. In contrast, when the composition according to one embodiment is used as a base for foundation, it spreads easily on the skin and forms a uniform coating, thereby improving the uniformity of the film. Furthermore, the film made from the composition according to one embodiment has a cross-linked structure and is stronger than the coating made from conventional primer compositions, thus reducing or suppressing such problems and the need for touch-ups. In addition, the film made from the composition according to one embodiment has fewer defects such as color changes and also has excellent long-lasting performance.

[0147] In some embodiments, by using a composition according to one embodiment to form a film on the skin, the skin can be well moisturized by the occlusion effect of the film (the effect of preventing moisture from escaping from the skin). As a result, for example, the production function of moisturizing components (natural moisturizing factors: NMF) that the skin itself produces is improved, and the abnormality of turnover in the stratum corneum is also improved, so skin problems such as roughness become less likely to occur, and the beauty effect can be enhanced.

[0148] Therefore, the composition according to one embodiment can also be used as a cosmetic agent for the skin. In this disclosure, "cosmetic agent" means a substance used to apply the composition according to one embodiment to the skin to form a film and beautify the condition of the skin, or a substance used to beautify the condition of the skin.

[0149] Furthermore, for example, the composition according to one embodiment can be used as a protective film for electronic devices such as semiconductors or optical components such as optical lenses by forming a film on them.

[0150] There are no particular restrictions on the animals to which the composition according to one embodiment can be applied. Examples include humans, monkeys, pigs, cows, sheep, goats, dogs, cats, mice, rats, and birds, but among these, it can be suitably applied to humans.

[0151] [How to use] As for the method of using the composition according to one embodiment, there are no particular limitations as long as it can form a film, but the method for producing a film-like silicone on the surface of an object as described later in this disclosure can be suitably applied.

[0152] A film formed by a composition according to one embodiment is mainly formed by a crosslinking reaction or hydrosilylation reaction between an unsaturated bond in an unsaturated organopolysiloxane contained in the composition and optionally a hydride group in a hydride-functionalized polysiloxane contained in the composition, preferably by a crosslinking reaction or hydrosilylation reaction between a vinyl group in an unsaturated organopolysiloxane contained in the composition and optionally a hydride group in a hydride-functionalized polysiloxane contained in the composition. If the hydride-functionalized polysiloxane is not included in the composition according to one embodiment, it is preferably included in another composition for reaction with the composition.

[0153] The bonds formed by the crosslinking or hydrosilylation reaction may connect polymer chains to a three-dimensional network. These bonds preferably have a long-chain branched structure, forming a continuous, insoluble network or gel. The crosslinking or hydrosilylation reaction is preferably carried out using a catalyst to promote the reaction between unsaturated bonds in a saturated organopolysiloxane and hydride groups in a hydride-functionalized polysiloxane. The use of a catalyst in the crosslinking or hydrosilylation reaction offers advantages such as reduced by-product formation in the formation of the three-dimensional network and a denser bond site and network structure. If the catalyst is not included in the composition according to one embodiment, it is preferably included in another composition for reaction with that composition.

[0154] (Two-part composition) <First Embodiment> A two-component composition according to a first embodiment of the present disclosure is a two-component composition comprising a first composition and a second composition, wherein the first composition comprises a composition according to one embodiment of the present disclosure, and the second composition comprises a hydride-functionalized polysiloxane, and at least one of the first composition and the second composition further comprises a catalyst for promoting the reaction between unsaturated bonds contained in the unsaturated organopolysiloxane and hydride groups contained in the hydride-functionalized polysiloxane.

[0155] In the two-component composition according to the first embodiment, a film is formed by a crosslinking reaction or hydrosilylation reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane contained in the first composition and the hydride groups contained in the hydride-functionalized polysiloxane contained in the second composition, when the first composition and the second composition are mixed. At this time, since at least one of the first composition and the second composition further contains a catalyst, the crosslinking reaction or hydrosilylation reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane is suitably induced, promoted, and / or initiated.

[0156] <First composition> The first composition is a composition according to one embodiment of the present disclosure, comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the first composition is less than 20% by mass.

[0157] The first composition may contain a hydride-functionalized polysiloxane, but since the second composition contains a hydride-functionalized polysiloxane, the first composition does not need to contain a hydride-functionalized polysiloxane.

[0158] The first composition may further optionally contain other components of the composition according to the above embodiment.

[0159] <Second composition> The second composition comprises a hydride-functionalized polysiloxane and may further contain other components besides the hydride-functionalized polysiloxane as needed.

[0160] The hydride-functionalized polysiloxane is as described in the section <Hydride-functionalized polysiloxane> of the composition according to one embodiment.

[0161] There are no particular restrictions on the ratio of the mass of the hydride-functionalized polysiloxane to the mass of the second composition, and it can be appropriately selected depending on the purpose. The second composition may consist only of the hydride-functionalized polysiloxane (i.e., the ratio of the mass of the hydride-functionalized polysiloxane to the mass of the second composition is 100% by mass).

[0162] Other components in the second composition are not particularly limited and can be appropriately selected depending on the purpose; for example, the same components as those in the first composition can be used.

[0163] <<Catalyst>> At least one of the first composition and the second composition contains a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane in the first composition and the hydride groups contained in the hydride-functionalized polysiloxane in the first composition and / or the second composition.

[0164] The catalyst is as described in the section <Catalyst> of the composition according to one embodiment.

[0165] There are no particular restrictions on the ratio of the mass of the catalyst to the mass of at least one of the first composition and the second composition. For example, the upper limit can be 5.0% by mass or less, 3.0% by mass or less, 1.0% by mass or less, 0.50% by mass or less, 0.10% by mass or less, or 0.050% by mass or less. Similarly, there are no particular restrictions on the lower limit of the ratio of the mass of the catalyst to the mass of at least one of the first composition and the second composition. For example, it can be 0.001% by mass or more, 0.005% by mass or more, or 0.010% by mass or more. The upper and lower limits of the ratio of the catalyst's mass to the mass of at least one of the first and second compositions can be appropriately combined, for example, 0.001% by mass or more and 5.0% by mass or less, 0.001% by mass or more and 3.0% by mass or less, 0.005% by mass or more and 1.0% by mass or less, 0.005% by mass or more and 0.50% by mass or less, 0.010% by mass or more and 0.10% by mass or less, or 0.010% by mass or more and 0.050% by mass or less.

[0166] As described above, the catalyst may be included in at least one of the first and second compositions. For example, the first composition includes an unsaturated organopolysiloxane and one of the hydride-functionalized polysiloxane and the catalyst, but substantially does not include the other of the hydride-functionalized polysiloxane and the catalyst. The second composition includes the other of the hydride-functionalized polysiloxane and the catalyst, but substantially does not include the other of the hydride-functionalized polysiloxane and the catalyst. If the catalyst is a transition metal complex catalyst and the ligand of the complex includes an unsaturated group, it is preferable that the catalyst be included in the second composition.

[0167] [How to use] There are no particular restrictions on the order in which the first composition and the second composition are applied to the object to be coated. The order can be appropriately selected depending on the purpose. The first composition may be applied to the object to be coated, and the second composition may be applied on top of the first composition. Alternatively, the second composition may be applied to the object to be coated, and the first composition may be applied on top of the second composition.

[0168] In some embodiments, when applying the two-component composition according to the first embodiment to the skin, other cosmetics other than the first and second compositions may be applied to the target area of ​​the skin before applying the first or second composition to the skin; the first composition may be applied to the target area of ​​the skin to form a coating of the first composition, and after applying other cosmetics on the coating of the first composition, the second composition may be applied to cover the other cosmetics; the second composition may be applied to the target area of ​​the skin to form a coating of the second composition, and after applying other cosmetics on the coating of the second composition, the first composition may be applied to cover the other cosmetics; or, after forming a film on the skin with the first and second compositions, other cosmetics may be applied to the film.

[0169] In some embodiments, the first composition can be used as a base makeup composition and the second composition as a foundation. In some embodiments, the second composition can also be used as a base makeup composition and the first composition as a foundation. Among these, it is preferable to use the first composition as a base makeup composition and the second composition as a foundation.

[0170] There are no particular restrictions on the mass ratio [first composition / second composition] when applying the first composition and the second composition to the object to be coated. It can be appropriately selected depending on the purpose, for example, it can be 0.3 to 3 or 0.5 to 1.5. By setting the mass ratio [first composition / second composition] to 0.3 to 3, a suitable film can be formed.

[0171] <Second Embodiment> A two-component composition according to a second embodiment of the present disclosure is a two-component composition comprising a first composition and a second composition, wherein the first composition comprises the composition described in one embodiment of the present disclosure and a hydride-functionalized polysiloxane, and the second composition comprises a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane.

[0172] In the two-component composition according to the second embodiment, a film is formed by a crosslinking reaction or hydrosilylation reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane contained in the first composition and the hydride groups contained in the hydride-functionalized polysiloxane contained in the first composition. By mixing the first composition and the second composition, the catalyst contained in the second composition preferably induces, promotes, and / or initiates the crosslinking reaction or hydrosilylation reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane.

[0173] <First composition> The first composition is a composition according to one embodiment of the present disclosure, comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, a monovalent aliphatic alcohol, and a hydride-functionalized polysiloxane, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the first composition is less than 20% by mass.

[0174] The hydride-functionalized polysiloxane is as described in the section <Hydride-functionalized polysiloxane> of the composition according to one embodiment.

[0175] The first composition may contain a catalyst to promote the reaction between the unsaturated bonds in the unsaturated organopolysiloxane and the hydride groups in the hydride-functionalized polysiloxane; however, since the second composition contains the catalyst, the first composition does not need to contain the catalyst.

[0176] The first composition may further optionally contain other components of the composition according to the above embodiment.

[0177] <Second composition> The second composition contains a catalyst to promote the reaction between the unsaturated bonds in the unsaturated organopolysiloxane and the hydride groups in the hydride-functionalized polysiloxane, and may further contain other components besides the catalyst as needed.

[0178] The catalyst is as described in the section <Catalyst> of the composition according to one embodiment.

[0179] There are no particular restrictions on the ratio of the mass of the catalyst to the mass of the second composition. For example, the upper limit can be 5.0% by mass or less, 3.0% by mass or less, 1.0% by mass or less, 0.50% by mass or less, 0.10% by mass or less, or 0.050% by mass or less. Similarly, there are no particular restrictions on the lower limit of the ratio of the mass of the catalyst to the mass of the second composition. For example, it can be 0.001% by mass or more, 0.005% by mass or more, or 0.010% by mass or more. The upper and lower limits of the ratio of the mass of the catalyst to the mass of the second composition can be combined as appropriate. Examples include 0.001% by mass or more and 5.0% by mass or less, 0.001% by mass or more and 3.0% by mass or less, 0.005% by mass or more and 1.0% by mass or less, 0.005% by mass or more and 0.50% by mass or less, 0.010% by mass or more and 0.10% by mass or less, or 0.010% by mass or more and 0.050% by mass or less.

[0180] [How to use] The method of using the two-component composition according to the second embodiment is the same as the method of using the two-component composition according to the first embodiment.

[0181] There are no particular restrictions on the mass ratio [first composition / second composition] when applying the first composition and the second composition to the object to be coated. It can be appropriately selected depending on the purpose, for example, it can be 0.3 to 3 or 0.5 to 1.5. By setting the mass ratio [first composition / second composition] to 0.3 to 3, a suitable film can be formed.

[0182] (A method for creating a film-like silicone layer on the surface of an object) A method for producing a film-like silicone on the surface of an object according to one embodiment of the present disclosure comprises: (i) a first composition comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol; (ii) a second composition comprising a hydride-functionalized polysiloxane; and (iii) a catalyst for promoting the reaction between the unsaturated bonds of the unsaturated organopolysiloxane and the hydride groups of the hydride-functionalized polysiloxane, all of which are placed on the surface of the object; and reacting the unsaturated bonds of the unsaturated organopolysiloxane and the hydride groups of the hydride-functionalized polysiloxane to produce the film-like silicone on the surface of the object, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the first composition is less than 20% by mass. A method for producing a film-like silicone on the surface of an object according to one embodiment of the present disclosure may further include, if necessary, other processes.

[0183] <To arrange> The arrangement involves placing (i) a first composition comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol, (ii) a second composition comprising a hydride-functionalized polysiloxane, and (iii) a catalyst for promoting the reaction between the unsaturated bonds of the unsaturated organopolysiloxane and the hydride groups of the hydride-functionalized polysiloxane on the surface of an object.

[0184] In terms of arrangement, the first composition and the second composition may be compositions according to one embodiment of the present disclosure, or two-component compositions according to the first or second embodiment of the present disclosure.

[0185] In terms of arrangement, the mass ratio of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass, but is preferably 45% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, and particularly preferably 25% by mass or less. Furthermore, there is no particular limit to the lower limit of the mass ratio of the unsaturated organopolysiloxane to the mass of the first composition, and it can be appropriately selected depending on the purpose, but from the viewpoint of lightness of spreadability, 2% by mass or more is preferred, from the viewpoint of film abrasion resistance, 5% by mass or more is more preferred, even more preferably 10% by mass or more, and from the viewpoint of film uniformity, 20% by mass or more is particularly preferred. The upper and lower limits of the ratio of the mass of unsaturated organopolysiloxane to the mass of the first composition can be combined as appropriate, for example, 2% by mass or more and less than 50% by mass, 5% by mass or more and 45% by mass or less, 10% by mass or more and 40% by mass or less, 20% by mass or more and 30% by mass or less, or 20% by mass or more and 25% by mass or less. If the ratio of the mass of unsaturated organopolysiloxane to the mass of the first composition is 50% by mass or more, the lightness of the spread will be insufficient.

[0186] In arranging the particles, the ratio of the total mass of the multiple particles to the mass of the first composition is less than 20% by mass, but from the viewpoint of ease of spreading, it is preferably 15% by mass or less, more preferably 10% by mass or less, and even more preferably 5% by mass or less. Furthermore, there is no particular limit to the lower limit of the ratio of the total mass of the multiple particles to the mass of the first composition, and it can be appropriately selected depending on the purpose, but from the viewpoint of ease of spreading and abrasion resistance, it is preferably 0.5% by mass or more, and more preferably 1% by mass or less. The upper and lower limits of the ratio of the total mass of the multiple particles to the mass of the first composition can be appropriately combined, for example, 0.5% by mass or more and less than 20% by mass, 1% by mass or less and 15% by mass or less, 1% by mass or more and 10% by mass or less, or 1% by mass or more and 5% by mass or less. If the ratio of the total mass of the multiple particles to the mass of the first composition is 20% by mass or more, the ease of spreading will be insufficient.

[0187] In terms of arrangement, there are no particular restrictions on the mass ratio of the hydride-functionalized polysiloxane to the mass of the second composition, and it can be appropriately selected depending on the purpose. The second composition may consist only of the hydride-functionalized polysiloxane (i.e., the mass ratio of the hydride-functionalized polysiloxane to the mass of the second composition is 100% by mass).

[0188] The catalyst is as described in the section <Catalyst> of the composition according to one embodiment.

[0189] In terms of arrangement, it is preferable that at least one of the first composition and the second composition further contains a powdered pigment. As the pigment, those exemplified in the section "<Multiple particles having an average primary particle diameter of 100 nm or less>" of the composition according to one embodiment can be used.

[0190] The object is the object to which the first composition, the second composition, and the catalyst are applied, and examples include skin, electronic devices, and optical components. Among these, the object is preferably skin.

[0191] Placing preferably involves applying a cosmetic containing at least one of the first composition and the second composition to the surface of an object. There are no particular limitations on the cosmetic, and examples include sunscreen cosmetics, primer cosmetics, makeup cosmetics (e.g., foundation, gloss, lipstick, eyeshadow, nail polish, etc.), skincare cosmetics (e.g., serum, lotion, emulsion, etc.), or cosmetics that combine two or more of the functions of these cosmetics. Among these, the cosmetic containing at least one of the first composition and the second composition is preferably a primer cosmetic and / or foundation, and more preferably a primer cosmetic.

[0192] In arranging the materials, there are no particular restrictions on the amounts of the first composition, the second composition, and the catalyst used, and they can be appropriately selected according to the purpose. In the preparation described later, the entire amount prepared may be used, or only a portion thereof may be used.

[0193] In terms of arrangement, the first composition, the second composition, and the catalyst may be arranged simultaneously, separately, or any two of them may be arranged while one of them is arranged separately.

[0194] <Preparing a film-like silicone> The process of creating a film-like silicone involves reacting the unsaturated bonds of an unsaturated organopolysiloxane with the hydride groups of a hydride-functionalized polysiloxane to create a film-like silicone on the surface of an object.

[0195] There are no particular restrictions on the temperature and time used to produce the film-like silicone; they can be appropriately selected depending on the type of catalyst. If the catalyst causes a crosslinking reaction at a temperature below body temperature, the second composition can be formed at room temperature (25°C ± 5°C). Furthermore, if the object is skin (body surface), the film can be formed at body temperature.

[0196] The resulting film-like silicone is a film-like composition containing a three-dimensionally crosslinked silicone elastomer. There are no particular restrictions on the film thickness, size, etc., of the silicone film; these can be appropriately selected depending on the purpose.

[0197] There are no particular restrictions on the lower limit of the film thickness of the silicone film; for example, it can be 1 μm or more, 5 μm or more, 10 μm or more, 30 μm or more, 50 μm or more, 70 μm or more, 90 μm or more, 100 μm or more, 110 μm or more, 120 μm or more, 130 μm or more, 140 μm or more, or 150 μm or more. There are no particular restrictions on the upper limit of the film thickness of the silicone film. For example, the upper and lower limits of the film thickness can be set to 300 μm or less, 250 μm or less, or 200 μm or less. These can be combined as appropriate. Examples include 1 μm to 300 μm, 5 μm to 300 μm, 10 μm to 300 μm, 30 μm to 300 μm, 50 μm to 300 μm, 70 μm to 300 μm, 90 μm to 300 μm, 100 μm to 300 μm, 110 μm to 250 μm, 120 μm to 250 μm, 130 μm to 200 μm, 140 μm to 200 μm, or 150 μm to 200 μm.

[0198] <Other processing> Other processing methods are not particularly limited and may include, for example, preparing the first composition, the second composition, the catalyst, and other components as needed.

[0199] Preparation may involve purchasing commercially available first composition, second composition, and catalyst, and other components as needed, or preparing or synthesizing first composition, second composition, and catalyst, and other components as needed, by known methods. First composition, second composition, and catalyst, and other components as needed are as described in the (Compositions) section of this disclosure.

[0200] [Application] A method for producing a film-like silicone on the surface of an object according to one embodiment of this disclosure can be suitably used as a method for forming a film on the surface of an object, preferably the surface of skin, the surface of an electronic device, etc. When the object is skin, the method for producing a film-like silicone on the surface of an object according to one embodiment can be suitably used as a cosmetic method.

[0201] Furthermore, if the object is skin, the method for creating a film-like silicone on the surface of the object according to one embodiment can also be used as a cosmetic method. In this disclosure, "cosmetic method" means applying silicone to the skin to form a film-like silicone and beautifying the condition of the skin, or a method for beautifying the condition of the skin, and is different from a method of surgery, treatment, or diagnosis of a human being.

[0202] (kit) <First Embodiment> A kit according to a first embodiment of the present disclosure comprises a composition according to one embodiment of the present disclosure, a first document describing a method of using the composition, and / or a second document describing a uniform resource locator of the first document, wherein the method of using the composition described in the first document includes at least a portion of a method for producing a film-like silicone on the surface of an object according to one embodiment of the present disclosure. The kit according to the first embodiment may further comprise other components as needed.

[0203] In this disclosure, "kit" means that each component of the kit exists independently. For example, a kit is not limited to cases where a component containing a composition according to one embodiment of this disclosure and other components as needed are manufactured and sold as an integrated unit. For example, even if the component containing a composition according to one embodiment of this disclosure and other components as needed are manufactured and sold independently, a kit is included in this disclosure if it is assumed that the component containing the composition according to one embodiment of this disclosure and other components as needed will be used in combination, or if the kit substantially induces the combined use of the component containing the composition according to one embodiment of this disclosure and other components as needed.

[0204] <<Composition>> In the kit according to the first embodiment, the composition according to one embodiment of the present disclosure comprises an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol, wherein the ratio of the mass of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass, and the ratio of the total mass of the plurality of particles to the mass of the first composition is less than 20% by mass. Furthermore, as described above, in the kit according to the first embodiment, the composition according to one embodiment of the present disclosure may further contain a catalyst to promote the reaction between the unsaturated bonds contained in the hydride-functionalized polysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane, and may further contain other components as needed.

[0205] <<Document 1>> The first document is a document describing how to use a composition according to one embodiment. The first document may include not only general documents attached to the kit in the form of paperwork, but also, for example, documents on which instructions for using packaging containers such as the packaging container that holds the kit and the tubes into which the composition according to one embodiment is injected are printed.

[0206] <<Second Document>> The second document is a document that lists the uniform resource locators from the first document. There are no particular restrictions on the format of the uniform resource locators.

[0207] <<Other components>> Other components include, for example, a component for applying the composition according to one embodiment, a cutter, scissors, various cosmetics to be used before using the kit, a film remover for removing the film formed using the kit from the object to be coated, and a mirror.

[0208] In one embodiment, the kit may contain a container containing an unsaturated organopolysiloxane, a plurality of particles with an average primary particle size of 100 nm or less, a monohydric aliphatic alcohol, a container containing a hydride-functionalized polysiloxane, and a container containing a catalyst to promote the reaction between the unsaturated bonds in the unsaturated organopolysiloxane and the hydride groups in the hydride-functionalized polysiloxane, all of which may be contained in separate containers, or in each compartment of a container having two or more compartments. This prevents contact between the components. Furthermore, these contained agents may be configured to be applied one at a time, or they may be configured to be mixed together before or during use.

[0209] -Component for applying the composition- There are no particular limitations on the components used to apply the composition according to one embodiment, and they can be appropriately selected depending on the purpose. Examples include sprayers, sponges, brushes, silicone spatulas or brushes. The kit may contain only one of these, or two or more. By providing two or more, it is possible to select an appropriate application tool depending on the object to be applied, especially the part of the body surface.

[0210] -Membrane remover- The film remover included in the kit according to the first embodiment is a film remover for removing a film formed by a composition according to one embodiment. In one embodiment, the film formed using the kit can be used in combination with a film remover for removing the film from the coated object on which the film was formed. Here, "used in combination" includes using the kit and the film remover as a single unit, that is, encapsulating the film remover within the kit, or using the kit and the film remover separately.

[0211] Using the kit of this disclosure, a film formed on an object, particularly on the body surface, can be suitably removed from the object without damaging the film by using the specific film remover described below.

[0212] A suitable film remover used to remove a film formed using the kit of this disclosure preferably contains at least one selected from the group consisting of a hydrocarbon oil having a weight-average molecular weight of 300 to 800 and a polar oil having a weight-average molecular weight of 260 to 400, and more preferably uses both the hydrocarbon oil and the polar oil in combination from the viewpoint of effectively removing the film.

[0213] --Hydroxide oil-- The weight-average molecular weight of the hydrocarbon oil is preferably 320 or more, 350 or more, more preferably 380 or more, and preferably 750 or less, 700 or less, and more preferably 690 or less, from the viewpoint of suitably removing the film. The hydrocarbon oil can be used alone or in combination of two or more types. Here, "weight-average molecular weight" in this disclosure refers to the weight-average molecular weight in terms of polystyrene as measured by gel permeation chromatography.

[0214] There are no particular restrictions on the type of hydrocarbon oil; examples include liquid paraffin (mineral oil), olefin oligomers and their hydrogenated products (e.g., hydrogenated polydecene), and squalane.

[0215] There are no particular restrictions on the ratio of hydrocarbon oil to the total mass of the film remover. For example, from the viewpoint of suitably removing the film, it can be 1.0% by mass or more, 5.0% by mass or more, 10% by mass or more, 20% by mass or more, or 30% by mass or more. There are also no particular restrictions on the upper limit of the ratio of hydrocarbon oil to the total mass of the film remover. For example, it can be 100% by mass or less, less than 100% by mass, 80% by mass or less, 70% by mass or less, 60% by mass or less, or 50% by mass or less. The upper and lower limits of the ratio of hydrocarbon oil to the total mass of the film remover can be combined as appropriate.

[0216] --Polar oil-- From the viewpoint of effectively removing the film, the weight-average molecular weight of the polar oil is preferably 265 or higher or 270 or higher at the lower limit, and preferably 390 or lower, 380 or lower, or 370 or lower at the upper limit. From the viewpoint of effectively removing the film, the IOB value of the polar oil is preferably 0.12 or higher or 0.13 or higher at the lower limit, and preferably 1.48 or lower, 1.47 or lower, or 1.46 or lower at the upper limit. The polar oil may be used alone or in combination of two or more types.

[0217] Here, the IOB value is an abbreviation for Inorganic / Organic Balance, and it is a value that represents the ratio of inorganic value to organic value, and serves as an indicator of the degree of polarity of an organic compound. Specifically, the IOB value is expressed as IOB value = inorganic value / organic value. For each of the "inorganic value" and "organic value," for example, one carbon atom in a molecule has an "organic value" of 20, and one hydroxyl group has an "inorganic value" of 100. The "inorganic value" and "organic value" are set according to each atom or functional group, and the IOB value of an organic compound can be calculated by summing the "inorganic value" and "organic value" of all atoms and functional groups in the organic compound (see, for example, Yoshio Koda, "Organic Concept Diagram - Fundamentals and Applications," pp. 11-17, Sankyo Publishing, 1984).

[0218] There are no particular restrictions on the type of polar oil; for example, ester oils can be used. Specific examples include isopropyl myristate (IOB value = 0.18), ethylhexyl ethylhexanoate (IOB value = 0.20), alkyl benzoate (12-15 carbon atoms) (IOB value = 0.18), diethylhexyl succinate (IOB value = 0.32), neopentyl glycol diheptanoate (IOB value = 0.33), caprylic / capric triglyceride (IOB value = 0.28), and PPG-3 dipivalate (IOB value = 1.46), octyl palmitate (IOB value = 0.13), etc. These may be used individually or in combination of two or more.

[0219] There are no particular restrictions on the ratio of the mass of polar oil to the total mass of the film remover. For example, from the viewpoint of suitably removing the film, the lower limit can be 1.0% by mass or more, 5.0% by mass or more, 10% by mass or more, 15% by mass or more, or 20% by mass or more. There are also no particular restrictions on the upper limit of the ratio of the mass of polar oil to the total mass of the film remover. For example, it can be 100% by mass or less, less than 100% by mass, 80% by mass or less, 70% by mass or less, 60% by mass or less, or 50% by mass or less.

[0220] --Other ingredients-- The film remover may contain other components besides hydrocarbon oils and polar oils. There are no particular restrictions on the other components in the film remover, and examples include surfactants (emulsifiers), humectants, thickeners, water-soluble polymers, oil-soluble polymers, film-forming agents, higher fatty acids, metal ion chelating agents, lower alcohols, higher alcohols, polyhydric alcohols, denatured alcohols, various extracts, sugars, amino acids, organic amines, polymer emulsions, chelating agents, UV absorbers, pH adjusters, skin nutrients, vitamins, water-soluble agents applicable to pharmaceuticals, quasi-drugs, cosmetics, etc., buffers, anti-fading agents, antioxidants, preservatives, dispersants, propellants, fillers, pigments, dyes, colorants, fragrances, water, and oils other than hydrocarbon oils and polar oils. These may be used individually or in combination of two or more.

[0221] The film remover may contain oils other than hydrocarbon oils and polar oils. However, silicone oil may reduce the strength of the film, which may result in a decrease in the film removal performance. Therefore, from the viewpoint of suitably removing the film, the mass percentage of silicone oil is preferably 10% by mass or less, 5.0% by mass or less, 1.0% by mass or less, 0.5% by mass or less, or 0.1% by mass or less, relative to the total mass of the film remover, and it is more preferable that silicone oil is not included in the composition constituting the film remover.

[0222] --Instructions for using the film remover-- There are no particular restrictions on how film removers are used. Generally, film removers can be applied to part or all of the film formed on an object and used by rubbing or other means as desired. The film can then be removed by pulling it off with your fingers or other means.

[0223] [Application] The kit according to the first embodiment can be suitably used as a kit for forming films on skin, electronic devices, and objects. Specific examples are the same as those described in the composition according to the first embodiment.

[0224] <Second Embodiment> A kit according to a second embodiment of the present disclosure comprises a two-component composition according to a first embodiment of the present disclosure or a two-component composition according to a second embodiment of the present disclosure, a first document describing a method for using the two-component composition, and / or a second document describing a uniform resource locator of the first document, wherein the method for using the two-component composition described in the first document includes at least a portion of a method for producing a film-like silicone on the surface of an object according to one embodiment of the present disclosure. The kit according to the second embodiment may further comprise other components as needed.

[0225] The kit according to the second embodiment is the same as the kit according to the first embodiment, except that the composition according to one embodiment of the present disclosure is changed to the two-component composition according to the first embodiment of the present disclosure or the two-component composition according to the second embodiment of the present disclosure.

[0226] In one embodiment, the kit may contain a container for the first composition and a container for the second composition, each contained in separate containers, or they may be contained separately in each compartment of a container having two or more compartments. This prevents contact between the first and second compositions. Furthermore, these contained agents may be configured to be applied one at a time, or they may be configured to be mixed together before or during use. [Examples]

[0227] The embodiments will be described in more detail below with reference to examples and comparative examples, but the embodiments are not limited to these examples and comparative examples. In the examples and comparative examples, unless otherwise specified, the amounts of each ingredient are expressed as "mass%" relative to the mass of the composition.

[0228] (Example 1) <Preparation of the first composition> Based on the composition and blending amounts described in Table 1, the first composition was prepared. Specifically, at the final concentration, 25% vinyl dimethicone (Andisil® VS165000, viscosity: 165,000 cP, manufactured by AB Specialty Silicones) as an unsaturated organopolysiloxane, 5% silylated silica (AEROSIL® R812S, average primary particle diameter: 7 nm) as a plurality of particles with an average primary particle diameter of 100 nm or less, 5% ethanol as a monohydric aliphatic alcohol, 5% hydrogen dimethicone (Andisil® XL-11, kinematic viscosity: 45 cSt, manufactured by AB Specialty Silicones) as a hydride-functionalized polysiloxane, 1% bisbutyldimethylconpolyglyceryl-3 (manufactured by Shin-Etsu Chemical Co., Ltd.), 1% PEG-10 dimethicone (manufactured by Shin-Etsu Chemical Co., Ltd.), and the balance of dimethicone (kinematic viscosity: 1.5 cSt, manufactured by Shin-Etsu Chemical Co., Ltd.) were uniformly mixed at 3,000 rpm using a disperser (Lab Revolution®, manufactured by Primix Corporation) to prepare the first composition.

[0229] (Examples 2 to 12 and Comparative Examples 1 to 7) In the preparation of the first composition of Example 1, except that the composition and blending amounts were changed as described in Table 2 or Table 3, respectively, the first compositions of Examples 2 to 12 and Comparative Examples 1 to 7 were prepared in the same manner as in Example 1.

[0230] The product information of the particles used is as follows. · Titanium oxide (MT-100TV, average primary particle diameter: 15 nm, manufactured by Tayca Corporation) · Pigment-grade titanium oxide (average primary particle diameter: 300 nm)

[0231] (Examples 13 and Example 14) In the preparation of the first composition of Example 1, except that the composition and blending amounts were changed as described in Table 4, respectively, the first compositions of Examples 13 and Example 14 were prepared in the same manner as in Example 1.

[0232] (Preparation Example 1) <Preparation of the Second Composition> Based on the composition and blending amounts described in Table 5, each component was uniformly mixed to prepare the second composition. The product information of the catalyst used is as follows. · Karstedt's catalyst (1,000 cSt): Platinum catalyst (SILTECH K-VP, manufactured by Siltech)

[0233] [Evaluation Method] For the first compositions prepared in Examples 1 to 14 and Comparative Examples 1 to 7, "stretch lightness", "film uniformity", and "film scratch resistance" were evaluated by the following methods, and the viscosity was measured by the following method. The evaluation results are shown in Tables 1 to 4.

[0234] <Evaluation of "Stretch Lightness"> Ten expert panelists each applied 200 mg of the first compositions prepared in Examples 1 to 14 and Comparative Examples 1 to 7 to the inner forearm with their fingers. Each expert panelist conducted a sensory evaluation of the "stretch lightness" when applying the first composition. In the sensory evaluation, each expert panelist evaluated the "stretch lightness" in five levels: "light", "somewhat light", "neither light nor heavy", "somewhat heavy", and "heavy". Based on the results of the sensory evaluation, the "stretch lightness" of the first composition was evaluated according to the following evaluation criteria. Note that evaluations A and B are within the practical range. - Evaluation Criteria for "Stretch Lightness"- A: Seven or more out of ten answered "light" or "somewhat light". B: Four or more and six or less out of ten answered "light" or "somewhat light". C: Three or less out of ten answered "light" or "somewhat light".

[0235] <Evaluation of "Film Uniformity" and "Film Scratch Resistance"> <<Fabrication of the Film>> - Preparation- First, a natural rubber sheet (THERABAND, manufactured by Sakai Medical Co., Ltd.) was attached to a methyl methacrylate (PMMA) plate to create a substrate A with a square surface measuring 5 cm x 5 cm. A 3 cm x 3 cm square coating area was determined in the center of substrate A, and the surrounding area of ​​substrate A outside of this coating area was masked with masking tape. In addition, two polypropylene films with a thickness of 0.2 mm and dimensions of approximately 31 cm x 22 cm were prepared. A 3 cm x 3 cm square opening was formed in the center of these films (the area corresponding to the coating area of ​​substrate A).

[0236] -Application of the first composition- Next, substrate A was placed on a flat, horizontal surface. Then, one of the two films (film B) was placed on substrate A so that the opening of film B coincided with the coating area of ​​substrate A. Next, 200 mg of the first composition prepared in each of Examples 1 to 14 and Comparative Examples 1 to 7 was poured into the opening of film B. Furthermore, the first composition that overflowed from the opening of film B was removed using a glass slide measuring approximately 26 mm in length, 76 mm in width, and 1.3 mm in thickness, thereby adjusting the top surface of the first composition to be flat.

[0237] -Application of the second composition- Next, the second film (film C) was placed on film B so that the opening of film C coincided with the opening of film B (i.e., the coating area of ​​the first composition on substrate A). Then, 200 mg of the second composition prepared in Preparation Example 1 was poured into the opening of film C. Furthermore, the excess second composition that overflowed from the opening of film C was removed using the aforementioned microscope slide to adjust the top surface of the second composition to be flat.

[0238] -Membrane formation- Next, films B and C, and the masking tape were removed from substrate A. Then, substrate A, coated with the first and second compositions, was placed on a hot plate at 32°C. More specifically, substrate A was placed on the hot plate such that the side of substrate A opposite to the side coated with the first and second compositions was in contact with the heating surface of the hot plate. Under conditions of a relative humidity of 35±5%, substrate A was left on the hot plate for 5 minutes to allow the reaction of the first and second compositions to proceed and to dry the film obtained by the reaction. The coating process of the second composition and the film formation process were carried out so that the period from the start of the coating process of the second composition to the placement of substrate A on the hot plate was within 3 minutes.

[0239] <<Evaluation of film uniformity>> Based on sensory evaluation by a panel of 10 experts, the uniformity of the films obtained by the reaction of the components contained in the first and second compositions using the method described above was evaluated. In the sensory evaluation, each expert panelist visually inspected the dried films and evaluated the degree of unevenness in film thickness and distortion. Each expert panelist evaluated either the unevenness in film thickness or distortion of each film on a four-point scale: "none," "little" (acceptable), "somewhat," and "present." Based on the results of the sensory evaluation, the "uniformity of the film" was evaluated according to the following evaluation criteria. Ratings A and B represent the range of practical usability. - Evaluation criteria for "membrane uniformity" - A: Seven or more out of ten people answered "none" or "few." B: Of the 10 respondents, 4 to 6 answered "none" or "few." C: Three or fewer out of ten people answered "none" or "few."

[0240] <<Evaluation of "film abrasion resistance">> Based on the sensory evaluation by a panel of 10 experts, the abrasion resistance of the above-mentioned film was evaluated. In the sensory evaluation, each expert evaluator rubbed the film obtained by the reaction of the components contained in the first composition and the second composition by the above method with a metal spatula with a force of 2 N to 3 N, visually confirmed the presence or absence of film peeling, and evaluated the degree of film peeling. Each expert panelist evaluated the degree of film peeling in four levels: "none", "little" (acceptable), "somewhat", and "present". Based on the results of the sensory evaluation, the "abrasion resistance of the film" was evaluated according to the following evaluation criteria. Note that evaluations A and B are within the practical range. Also, FIG. 2 is a diagram showing an example of a state where each expert panelist evaluated the degree of film peeling as "present" in the evaluation of the abrasion resistance of the film. - Evaluation Criteria for "Abrasion Resistance of Film" - A: Seven or more out of 10 answered "none" or "little". B: Four or more and six or less out of 10 answered "none" or "little". C: Three or less out of 10 answered "none" or "little".

[0241] <<Measurement of Viscosity>> The viscosity of the first composition prepared in Examples 1 to 14 and Comparative Examples 1 to 7 was measured at 30 °C using a B-type viscometer (for example, TVB-10, manufactured by Toki Sangyo Co., Ltd.) after placing the first composition in a thermostat at 30 °C for 1 hour. The viscosities of the first compositions prepared in Examples 1 to 14 and Comparative Examples 1 to 7 at 30 °C were all within the range of 1,000 mPa·s or more and 50,000 mPa·s or less.

[0242] [Table 1]

[0243] [Table 2]

[0244] [Table 3]

[0245] [Table 4]

[0246] [Table 5]

[0247] Examples of the types of disclosures include the following: <1> Unsaturated organopolysiloxanes and Multiple particles with an average primary particle diameter of 100 nm or less, Monohydric aliphatic alcohols, A composition comprising, The ratio of the mass of the unsaturated organopolysiloxane to the mass of the composition is less than 50% by mass. The ratio of the total mass of the plurality of particles to the mass of the composition is less than 20% by mass. It is a composition. <2> The viscosity of the composition at 30°C is 1,000 mPa·s or more and 50,000 mPa·s or less. The aforementioned <1> The composition is as described above. <3> The number of carbon atoms in the aforementioned monovalent aliphatic alcohol is 10 or less. The aforementioned <1> or the above <2> The composition is as described above. <4> The mass of the monovalent aliphatic alcohol relative to the mass of the composition is 30% by mass or less. The aforementioned <1> from the above <3> The composition is one of the items described in any one of the above. <5> The ratio of the mass of water to the mass of the composition is 51% by mass or less. The aforementioned <1> from the above <4> The composition is one of the items described in any one of the above. <6> The ratio of the mass of water to the mass of the composition is 10% by mass or more. The aforementioned <1> from the above <5> The composition is one of the items described in any one of the above. <7> Further containing hydride-functionalized polysiloxanes, The aforementioned <1> from the above <6> The composition is one of the items described in any one of the above. <8> The present invention further includes a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. The aforementioned <1> from the above <7> The composition is one of the items described in any one of the above. <9> The ratio of the mass of the hydride-functionalized polysiloxane to the mass of the composition is 5% by mass or less. The aforementioned <7> or the above <8> The composition is as described above. <10> The aforementioned composition is a film-forming agent. The aforementioned <1> from the above <9> The composition is one of the items described in any one of the above. <11> This is used to form a film by a crosslinking reaction or hydrosilylation reaction between the unsaturated bonds contained in the aforementioned unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. The aforementioned <10> The composition is as described above. <12> A two-component composition comprising a first composition and a second composition, The first composition is the <1> from the above <11> A composition comprising any one of the items up to, The second composition comprises a hydride-functionalized polysiloxane, At least one of the first composition and the second composition further comprises a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. It is a two-component composition. <13> A two-component composition comprising a first composition and a second composition, The previous composition is The aforementioned <1> from the above <11> A composition as described in any one of the items up to, Hydride-functionalized polysiloxanes, Includes, The second composition includes a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. It is a two-component composition. <14> A method for creating a film-like silicone on the surface of an object, (i) a first composition comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol; (ii) a second composition comprising a hydride-functionalized polysiloxane; and (iii) a catalyst for promoting the reaction between the unsaturated bonds of the unsaturated organopolysiloxane and the hydride groups of the hydride-functionalized polysiloxane, all of which are placed on the surface of the object. The unsaturated bond of the unsaturated organopolysiloxane and the hydride group of the hydride-functionalized polysiloxane are reacted to produce a film-like silicone on the surface of the object, Includes, The ratio of the mass of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass. The ratio of the total mass of the plurality of particles to the mass of the first composition is less than 20% by mass. This is a method for creating a film-like silicone layer on the surface of an object. <15> At least one of the first composition and the second composition further comprises a powdered pigment. The aforementioned <14> This is the method used. <16> The aforementioned object is skin, The aforementioned arrangement means Applying a cosmetic composition containing at least one of the first composition and the second composition to the surface of the object. including, The aforementioned <14> or the above <15> This is the method used. <17> The aforementioned <1> from the above <11> A composition as described in any one of the items up to, A first document describing the method of using the composition, and / or a second document describing the uniform resource locator of the first document, Equipped with, The method of using the composition described in the first document is the <14> from the above <16> Including at least part of the method described in any one of the paragraphs up to, It's a kit. <18> The aforementioned <12> or <13> The two-component composition described above, A first document describing the method of use of the two-component composition, and / or a second document describing the uniform resource locator of the first document, Equipped with, The method of use of the two-component composition described in the first document is the <14> from the above <16> Including at least part of the method described in any one of the paragraphs up to, It's a kit.

[0248] As described above, this disclosure has been explained based on specific embodiments and examples, but these embodiments and examples are merely presented as examples, and this disclosure is not limited to the above embodiments and examples. The above embodiments can be implemented in various other forms, and various combinations, omissions, substitutions, additions, modifications, etc., are possible without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents.

Claims

1. Unsaturated organopolysiloxanes and Multiple particles with an average primary particle diameter of 100 nm or less, Monohydric aliphatic alcohols, A composition comprising, The ratio of the mass of the unsaturated organopolysiloxane to the mass of the composition is less than 50% by mass. The ratio of the total mass of the plurality of particles to the mass of the composition is less than 20% by mass. composition.

2. The viscosity of the above composition at 30°C is 1,000 mPa·s or more and 50,000 mPa·s or less. The composition according to claim 1.

3. The number of carbon atoms in the monovalent aliphatic alcohol is 10 or less. The composition according to claim 1.

4. The mass of the monovalent aliphatic alcohol relative to the mass of the composition is 30% by mass or less. The composition according to claim 1.

5. The ratio of the mass of water to the mass of the composition is 51% by mass or less. The composition according to claim 1.

6. The ratio of the mass of water to the mass of the composition is 10% by mass or more. The composition according to claim 1.

7. Further containing hydride-functionalized polysiloxanes, The composition according to any one of claims 1 to 6.

8. The present invention further includes a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. The composition according to any one of claims 1 to 6.

9. The ratio of the mass of the hydride-functionalized polysiloxane to the mass of the composition is 5% by mass or less. The composition according to claim 7.

10. The aforementioned composition is a film-forming agent. The composition according to claim 1.

11. This is used to form a film by a crosslinking reaction or hydrosilylation reaction between the unsaturated bonds contained in the aforementioned unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. The composition according to claim 10.

12. A two-component composition comprising a first composition and a second composition, The first composition comprises the composition described in claim 1, The second composition comprises a hydride-functionalized polysiloxane. At least one of the first composition and the second composition further comprises a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. A two-component composition.

13. A two-component composition comprising a first composition and a second composition, The first composition is The composition according to claim 1, Hydride-functionalized polysiloxanes, Includes, The second composition includes a catalyst for promoting the reaction between the unsaturated bonds contained in the unsaturated organopolysiloxane and the hydride groups contained in the hydride-functionalized polysiloxane. A two-component composition.

14. A method for creating a film-like silicone on the surface of an object, (i) a first composition comprising an unsaturated organopolysiloxane, a plurality of particles having an average primary particle diameter of 100 nm or less, and a monovalent aliphatic alcohol; (ii) a second composition comprising a hydride-functionalized polysiloxane; and (iii) a catalyst for promoting the reaction between the unsaturated bonds of the unsaturated organopolysiloxane and the hydride groups of the hydride-functionalized polysiloxane, all of which are placed on the surface of the object. The unsaturated bond of the unsaturated organopolysiloxane and the hydride group of the hydride-functionalized polysiloxane are reacted to produce a film-like silicone on the surface of the object, Includes, The ratio of the mass of the unsaturated organopolysiloxane to the mass of the first composition is less than 50% by mass. The ratio of the total mass of the plurality of particles to the mass of the first composition is less than 20% by mass. A method for creating a film-like silicone layer on the surface of an object.

15. At least one of the first composition and the second composition further comprises a powdered pigment. The method according to claim 14.

16. The aforementioned object is skin, The aforementioned arrangement means Applying a cosmetic composition containing at least one of the first composition and the second composition to the surface of the object. including, The method according to claim 14.

17. The composition according to claim 1, A first document describing a method of using the composition, and / or a second document describing the uniform resource locator of the first document, Equipped with, The method of using the composition described in the first document includes at least a part of the method described in claim 14. kit.

18. A two-component composition according to claim 12 or 13, A first document describing the method of using the two-component composition, and / or a second document describing the uniform resource locator of the first document, Equipped with, The method of use of the two-component composition described in the first document includes at least a part of the method described in claim 14. kit.

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