WO2010134422A1 - 中空異形微粒子、その製造方法、中空異形微粒子を含有する化粧品原料及び樹脂組成物 - Google Patents
中空異形微粒子、その製造方法、中空異形微粒子を含有する化粧品原料及び樹脂組成物 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0245—Specific shapes or structures not provided for by any of the groups of A61K8/0241
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0279—Porous; Hollow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K8/893—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/10—General cosmetic use
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to hollow irregularly shaped fine particles, a method for producing the same, and uses thereof.
- Fine particles of various materials are put to practical use for various purposes in various fields. Many of the shapes are indefinite, and are useful as they are, and play an important role as industrial materials.
- Examples of such advanced requirements include improvement of optical characteristics in the fields of display parts and light diffusion plates, miniaturization of size in the field of electronic parts, improvement of usability in cosmetics, and the like.
- the present invention relates to hollow irregularly shaped fine particles adapted to the sophistication of such demands, a method for producing the same, and uses thereof.
- fine particles having a controlled shape include hollow and uneven fine particles (see, for example, Patent Document 6), generally spherical fine particles having many small depressions on the surface (for example, see Patent Document 7), rugby ball-like particles, and the like.
- non-spherical fine particles such as fine particles (for example, see Patent Document 8) and hemispherical fine particles (for example, see Patent Document 9).
- each of these conventional fine particles has a characteristic, but there is a problem that it has not been able to fully meet the above-mentioned sophistication in recent years.
- the problem to be solved by the present invention is that demands in recent years have been increased, for example, further improvement in optical properties such as total light transmittance and light diffusibility in resin molded articles, and in use, soft focus in cosmetics.
- the present invention provides a hollow irregularly shaped fine particle that can sufficiently meet further improvement in sustainability and the like, a method for producing the same, and a use thereof.
- the present inventors have a plurality of concave portions of a specific size on the surface, and have one hollow portion in communication with the surface inside, It has been found that hollow deformed fine particles having a specific size having a spindle shape as a whole are properly suitable.
- the present invention has a plurality of recesses (21) on the surface (11) and one hollow portion (41) in the interior (31), and the surface (11) and the hollow portion (41).
- the present invention also relates to a method for producing such hollow irregular fine particles, and a cosmetic and a resin composition using such hollow irregular fine particles.
- the hollow irregularly shaped fine particles according to the present invention have a plurality of recesses (21) on the surface (11) and one hollow portion (41) in the interior (31).
- the hollow shaped fine particles having a spindle shape as a whole are connected to each other through a single crack (51) along the direction of the major axis (L 1 ).
- the hollow irregularly shaped fine particles according to the present invention those composed of a polysiloxane crosslinked structure are more useful in use and preferable.
- This polysiloxane crosslinked structure is a structure in which siloxane units form a three-dimensional network structure.
- siloxane units constituting the polysiloxane crosslinked structure are not particularly limited, and examples of such siloxane units include siloxane units represented by the following chemical formula 1, siloxane units represented by chemical formula 2, and siloxane represented by chemical formula 3. Those composed of units are preferred.
- R 1 , R 2 , R 3 Organic group having a carbon atom directly connected to a silicon atom
- R 1 in Chemical Formula 2 and R 2 and R 3 in Chemical Formula 3 include organic groups having 1 to 12 carbon atoms such as an alkyl group, a cycloalkyl group, an aryl group, an alkylaryl group, and an aralkyl group.
- organic groups having 1 to 12 carbon atoms such as an alkyl group, a cycloalkyl group, an aryl group, an alkylaryl group, and an aralkyl group.
- an alkyl group having 1 to 4 carbon atoms such as a methyl group, an ethyl group, a propyl group, and a butyl group or a phenyl group is preferable, and a methyl group is more preferable.
- R 1 in Chemical Formula 2 , R 2 in Chemical Formula 3, and R 3 are such organic groups
- preferred siloxane units among the siloxane units represented by Chemical Formula 2 and Chemical Formula 3 are methylsiloxane units and ethylsiloxane units.
- the constituent ratio of each siloxane unit is not particularly limited, but 20 to 45 mol% of the siloxane unit represented by Chemical Formula 1 and the siloxane unit represented by Chemical Formula 2
- the siloxane units represented by 50 to 75 mol% and the chemical formula 3 are preferably 5 to 27 mol% (100 mol% in total).
- the hollow irregularly shaped fine particles according to the present invention have a plurality of concave portions (21) on the surface (11), and have one hollow portion (41) inside (31), although the surface (11) and the hollow portion (41) are in communication with each other via a single crack (51) along the direction of the long diameter (L 1 ), they are hollow irregularly shaped fine particles having a spindle shape as a whole.
- the hollow irregular shaped fine particles have an average value of the major axis (L 1 ) in the range of 0.5 to 20 ⁇ m.
- the hollow irregularly shaped fine particles according to the present invention have one crack (51) along the direction of the long diameter (L 1 ). Although this crack (51) is substantially closed, when it is clearly open, both may coexist, but either case is useful.
- the hollow portion (41) is connected to the crack (51).
- the size of the hollow portion (41) is not particularly limited, but its presence is important for exhibiting the desired effect of the present invention.
- the hollow irregularly shaped fine particles according to the present invention have a plurality of recesses (21) on the surface (11).
- the size of the recess (21) is not particularly limited, but the average value of the maximum diameter (m 1 ) / the average value of the long diameter (L 1 ) of the recess (21) is in the range of 0.01 to 0.30. preferable. The presence of such a recess is important for exerting the desired effect of the present invention.
- the average value of the long diameter (L 1 ), the average value of the short diameter (L 2 ), and the average value of the maximum diameter (m 1 ) of the concave portion (21) are all hollow in the present invention. It is the value which measured each about arbitrary 20 extracted from the scanning electron microscope image of irregular-shaped fine particles, and calculated
- One of the indexes indicating the characteristics of the hollow irregularly shaped fine particles according to the present invention is the high oil absorption.
- the amount of oil absorption is not particularly limited, but is preferably in the range of 50 to 150 ml / 100 g.
- the hollow irregularly shaped fine particles according to the present invention have a silanol group-forming silicon compound represented by the following chemical formula 20 to 20 to 45 mol%, a silanol group-forming silicon compound represented by the chemical formula 5 to 50 to 75 mol%, and a chemical formula 6:
- the silanol group-forming silicon compound shown is used in a proportion of 5 to 27 mol% (total of 100 mol%), and this is first converted from the silanol group-forming silicon compound shown in Chemical Formula 4 with water in the presence of a basic catalyst.
- a silanol compound is produced by contact and hydrolysis, and then the silanol compound, the silanol group-forming silicon compound represented by Chemical Formula 5 and the silanol group-forming silicon compound represented by Chemical Formula 6 are converted into a basic catalyst and a cation. It can be obtained by carrying out a condensation reaction under an aqueous condition in which a surfactant is present.
- R 4 , R 5 , R 6 Organic groups having carbon atoms directly connected to silicon atoms
- X, Y, Z Alkoxyethoxy groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, carbon An acyloxy group having 2 to 4 carbon atoms, an N, N-dialkylamino group having an alkyl group having 1 to 4 carbon atoms, a hydroxyl group, a halogen atom or a hydrogen atom
- R 4 in Chemical formula 5 , R 5 and R 6 in Chemical formula 6 are non-reactive organic groups such as alkyl group, phenyl group, alkoxyalkyl group, epoxy group, vinyl group, (meth) acryloylalkyl group, A reactive organic group such as a mercapto group can be used.
- silanol group-forming silicon compounds of Chemical Formulas 4 to 6 those in which each of R 4 , R 5 , and R 6 is an alkyl group having 1 to 4 carbon atoms or a phenyl group are easily available. It is preferable from the viewpoint of ease of production stabilization.
- the silanol group-forming silicon compound represented by Chemical Formula 4 is a compound that will form the siloxane unit represented by Chemical Formula 1 as a result.
- X in Chemical Formula 4 represents 1) an alkoxyethoxy group having 1 to 4 carbon atoms such as methoxy group or ethoxy group, and 2) an alkoxyethoxy group having 1 to 4 carbon atoms such as methoxyethoxy group or butoxyethoxy group.
- an acyloxy group having 2 to 4 carbon atoms such as an acetoxy group or a propioxy group
- an N, N-dialkylamino group having an alkyl group having 1 to 4 carbon atoms such as a dimethylamino group or a diethylamino group
- 6) halogen atom such as chlorine atom or bromine atom, or 7) hydrogen atom
- Examples of silanol group-forming silicon compounds represented by Chemical Formula 4 include tetramethoxysilane, tetraethoxysilane, tetrabutoxysilane, trimethoxyethoxysilane, tributoxyethoxysilane, tetraacetoxysilane, tetrapropoxysilane, tetra (dimethylamino) ) Silane, tetra (diethylamino) silane, silanetetraol, chlorosilanetriol, dichlorodisianol, tetrachlorosilane, chlorotrihydrogensilane, etc., among which tetramethoxysilane, tetraethoxysilane, tetrabutoxysilane preferable.
- the silanol group-forming silicon compound represented by Chemical formula 5 is a compound that results in the formation of the siloxane unit represented by Chemical formula 2.
- Y in Chemical formula 5 is the same as X in Chemical formula 4, and R 4 in Chemical formula 5 is the same as R 1 in Chemical formula 2.
- Examples of the silanol group-forming silicon compound represented by Chemical Formula 5 include methyltrimethoxysilane, ethyltriethoxysilane, propyltributoxysilane, butyltributoxysilane, phenyltris (2-methoxyethoxy) silane, and methyltris (2-butoxyethoxy).
- Silane methyltriacetoxysilane, methyltripropoxysilane, methylsilanetriol, methylchlorodisianol, methyltrichlorosilane, methyltrihydrogensilane, etc., among them, as described above for R 1 in Chemical Formula 2
- a silanol group-forming silicon compound that results in the formation of a methylsiloxane unit, an ethylsiloxane unit, a propylsiloxane unit, a butylsiloxane unit or a phenylsiloxane unit is preferred.
- Silanol group-forming silicon compounds that form siloxane units are more preferred.
- the silanol group-forming silicon compound represented by Chemical formula 6 is a compound that results in the formation of the siloxane unit represented by Chemical formula 3.
- Z in Chemical Formula 6 is the same as X in Chemical Formula 4, and R 5 and R 6 in Chemical Formula 6 are the same as R 2 and R 3 in Chemical Formula 3 .
- Examples of the silanol group-forming silicon compounds represented by Chemical Formula 6 include dimethyldimethoxysilane, diethyldiethoxysilane, dipropyldibutoxysilane, dibutyldimethoxysilane, methylphenylmethoxyethoxysilane, dimethylbutoxyethoxysilane, dimethyldiacetoxysilane, dimethyl Dipropoxysilane, dimethyldi (dimethylamino) silane, dimethyldi (diethylamino) silane, dimethylsilanediol, dimethylchlorosilanol, dimethyldichlorosilane, dimethyldihydrogensilane, and the like, among them, R 2 in Chemical Formula 3 as described above for R 3, as a result dimethylsiloxane units, diethyl siloxane units, dipropyl siloxane unit, dibutyl siloxane unit or methylphenyl siloxanyl Silano
- the silanol group-forming silicon compound represented by Chemical Formula 4 the silanol group-forming compound represented by Chemical Formula 5 and the silanol group-forming compound represented by Chemical Formula 6 described above are used.
- 20 to 45 mol% of the silanol group-forming silicon compound represented by Chemical formula 4 50 to 75 mol% of the silanol group-forming compound represented by Chemical formula 5 and 5 to 27 of the silanol group-forming compound represented by Chemical formula 6
- a silanol compound is produced from the silanol group-forming silicon compound represented by Chemical Formula 4 by contacting it with water in the presence of a basic catalyst and hydrolyzing it.
- a basic catalyst for hydrolysis a conventionally known catalyst can be used.
- organic bases are mentioned.
- the amount of catalyst at the time of hydrolysis is preferably present at a concentration of usually 0.001 to 0.5% by mass with respect to the silanol group-forming silicon compound represented by Chemical Formula 4 used as a raw material.
- the silanol compound produced as described above, the silanol group-forming silicon compound represented by the chemical formula 5 and the silanol group-forming silicon compound represented by the chemical formula 6 were present in the presence of a basic catalyst and a cationic surfactant.
- the condensation reaction is carried out under aqueous conditions.
- a conventionally known catalyst can be used in the same manner as the basic catalyst for hydrolysis.
- the basic catalyst for the condensation reaction is preferably present at a concentration of 0.001 to 0.5% by mass with respect to the total amount of silanol group-forming silicon compound used as a raw material.
- a conventionally well-known thing can be used as a cationic surfactant added to a reaction system with a basic catalyst.
- cationic surfactants include lauryl trimethyl ammonium etosulphate, tributyl methyl ammonium, tetrabutyl ammonium, quaternary ammonium salts such as trimethyl octyl ammonium, trimethyl lauryl ammonium, trimethyl oleyl ammonium, 2-heptadecenyl-hydroxyethyl imidazoline, and the like.
- a cationic surfactant is preferably present at a concentration of usually 0.001 to 0.55 mass% with respect to the total amount of silanol group-forming silicon compound used as a raw material.
- the charging ratio of the total amount of water / silanol group-forming silicon compound is usually 10/90 to 70/30 (mass ratio).
- the amount of the catalyst used varies depending on the type and the type of silanol group-forming silicon compound, but is preferably 1% by mass or less based on the total amount of the silanol group-forming silicon compound.
- the reaction temperature is usually 0 to 40 ° C., but is preferably 30 ° C. or less in order to avoid an immediate condensation reaction of the silanol compound produced by the hydrolysis reaction.
- the reaction liquid containing the silanol compound produced as described above is subsequently subjected to a condensation reaction to produce organic silicone fine particles having a hollow spindle shape as a whole.
- a catalyst in hydrolysis can be used as a catalyst for the condensation reaction. Therefore, the reaction solution containing the silanol compound produced by hydrolysis is added as it is or further to the mixture, and the mixture is heated to 30 to 80 ° C. By continuing the reaction by heating, the organic silicone fine particles can be obtained as an aqueous suspension by condensation reaction.
- the pH of such an aqueous suspension is preferably adjusted to be in the range of 8 to 10 with an alkali such as ammonia, sodium hydroxide or potassium hydroxide.
- the solid content concentration of the organic silicone fine particles in the aqueous suspension is preferably in the range of 2 to 20% by mass by adjusting the amount of water used, and in the range of 5 to 15% by mass. It is more preferable that
- the hollow irregularly shaped fine particles according to the present invention can be used as a hydrated substance separated from the aqueous suspension, extracted through, for example, a wire mesh, and adjusted to a solid content of 30 to 70% by mass by centrifugation or pressure filtration.
- a further dried product can also be used.
- the dried product is obtained by a method in which an aqueous suspension is extracted through a wire mesh, dehydrated by centrifugation, pressure filtration, or the like, and the dehydrated product is dried by heating at 100 to 250 ° C. It can also be obtained by a method of heating and drying directly at 100 to 250 ° C. with a spray dryer. These dried products are preferably crushed using, for example, a jet mill grinder.
- the hollow irregularly shaped fine particles according to the present invention thus obtained have a plurality of recesses (21) on the surface and one hollow portion (41) in the interior (31).
- the surface (11) and the hollow portion ( 41) and is a hollow profiled microparticles exhibiting spindle shape as a whole which is contacted through a major axis (L 1) 1 pieces of cracks along the direction of (51), the average value of the major axis (L 1) is 0
- the average value of the minor axis (L 2 ) / the average value of the major axis (L 1 ) 0.3 to 0.8.
- the cosmetic raw material according to the present invention is a cosmetic raw material containing the hollow deformed fine particles according to the present invention described above.
- the cosmetic raw material according to the present invention When used as a component of a liquid, creamy or pressed basic cosmetic or makeup cosmetic, it has less unevenness and less glare due to its excellent optical properties and high oil absorption. It is excellent in soft focus effect, adhesion to skin and feeling of adhesion, and is useful for makeup removal by sebum.
- the amount of the cosmetic raw material according to the present invention is appropriately selected depending on the usage form of the cosmetic to be applied. For example, in a press-up makeup cosmetic, it is preferably 0.5 to 50% by mass, and the liquid makeup is used. In up cosmetics, it is preferably 0.1 to 30% by mass.
- Other raw materials that can be used together with the cosmetic raw material according to the present invention include extender pigments, white pigments, pearl pigments, colored pigments (dyes), binding oil agents, water, surfactants, thickeners, preservatives, and antioxidants. Agents, fragrances and the like.
- the desired cosmetic can be prepared by a known method in which such other ingredients are uniformly dispersed together with the cosmetic ingredient according to the present invention.
- the resin composition according to the present invention is a resin composition containing the hollow deformed fine particles according to the present invention, and is useful for improving the properties of various resin molded products obtained therefrom.
- resin moldings that require advanced optical properties, such as lighting fixtures and display parts, both light transmission and haze are high due to efficient use of light and advanced functions.
- the resin composition according to the present invention is useful for obtaining a resin molded product satisfying such properties.
- the amount of the hollow irregularly shaped fine particles according to the present invention used is 0.1 to 5% by mass in the resin composition when the resin molded body as described above is produced from the resin composition according to the present invention.
- the resin composition according to the present invention when the resin composition according to the present invention is applied to the surface of a separately produced resin molded body, it can be contained in the resin composition up to about 30% by mass as long as the strength of the coating film is allowed.
- FIG. 2 is an enlarged front view schematically showing hollow irregular fine particles according to the present invention.
- FIG. 2 is an enlarged plan view schematically showing the same hollow irregular fine particles as FIG. 1.
- FIG. 3 is a sectional view taken along line AA in FIG. 2.
- the 4000 times scanning electron micrograph which illustrates the hollow irregular-shaped fine particle which concerns on this invention.
- the scanning electron micrograph of 10000 times which illustrates the hollow irregular-shaped microparticles
- the hollow irregularly shaped fine particles according to the present invention schematically shown in FIGS. 1 to 3 have a plurality of recesses 21 on the surface 11 and one hollow portion 41 in the interior 31, and the surface 11 and the interior 31. Are connected to each other through one crack 51 along the direction of the major axis L 1.
- the average value of the major axis L 1 is 0.5 to 20 ⁇ m
- mean value 0.3-0.8 of L 1
- Such hollow profiled microparticles indeed, has a shape as illustrated in the scanning electron micrograph of FIG. 4, also the scanning electron micrograph of FIG. 5 is a longitudinal section of a direction along its minor axis L 2 The structure is as exemplified in FIG.
- Test category 1 (synthesis of hollow irregularly shaped fine particles)
- Example 1 ⁇ Synthesis of hollow irregularly shaped fine particles (P-1) ⁇
- 2000 g of ion-exchanged water was taken, and 0.11 g of 30% sodium hydroxide was added and dissolved therein.
- 199.7 g (0.96 mol) of tetraethoxysilane was added, and hydrolysis was carried out with stirring at 15 ° C. for 60 minutes.
- the hollow irregularly shaped fine particle (P-1) was subjected to observation and measurement of the fine particle surface and cross-sectional observation, elemental analysis, ICP emission spectral analysis, FT-IR spectral analysis, and NMR spectral analysis by the following scanning electron microscope.
- This hollow irregularly shaped fine particle (P-1) has a plurality of recesses (21) on the surface (11), has one hollow part (41) in the interior (31), and has a surface (11) And hollow portions (41) are in communication with each other through a single crack (51) along the direction of the major axis, and are hollow spindle-shaped fine particles as a whole, and the average value of the major axis (L 1 ) is 7.
- Comparative Example 1 ⁇ Synthesis of fine particles (R-1) ⁇ 100 g of ion-exchanged water, 0.01 g of acetic acid, and 1.8 g of a 10% aqueous sodium dodecylbenzenesulfonate solution were taken in a reaction vessel to obtain a uniform aqueous solution. To this aqueous solution were added 56.2 g (0.27 mol) of tetraethoxysilane, 74.8 g (0.55 mol) of methyltrimethoxysilane and 21.6 g (0.18 mol) of dimethyldimethoxysilane, and 30 minutes at 30 ° C. Hydrolyzed.
- Amount used mol% relative to a total of 100 mol% of silanol group-forming silicon compounds used as raw materials
- Concentration of hydrolysis catalyst concentration of catalyst with respect to silanol group-forming silicon compound represented by Chemical formula (mass%)
- Concentration of condensation catalyst concentration of catalyst (% by mass) based on the total of silanol group-forming silicon compounds used as raw materials
- Surfactant concentration Concentration of surfactant (% by mass) based on the total of silanol group-forming silicon compounds used as raw materials
- SM-1 Tetraethoxysilane SM-2: Tetramethoxysilane SM-3: Methyltrimethoxysilane SM-4: Propyltributoxysilane SM-5: Phenyltrimethoxysilane SM-6: Dimethyldimethoxysilane SM-7: Methylphenylmethoxyethoxysilane
- CA-1 Sodium hydroxide
- CA-2 Ammonia
- CA-3 Acetic
- S-1 Silicic anhydride unit
- S-2 Methylsiloxane unit
- S-3 Propylsiloxane unit
- S-4 Phenylsiloxane unit
- S-5 Dimethylsiloxane unit
- S-6 Methylphenylsiloxane unit
- Test category 2 In order to examine the usefulness of the hollow deformed fine particles according to the present invention as cosmetics, the following cosmetics were prepared and evaluated.
- composition having a mass ratio described in Table 4 was prepared.
- the pigments of Nos. 1 to 7 were mixed using a mixer so that the mass ratios shown in Table 4 were obtained, and the components Nos. 8 to 12 were previously taken so that the mass ratios of Table 4 were obtained.
- the mixture that had been heated to 40 ° C. was added and mixed again.
- the mixture was allowed to stand, cooled, pulverized, molded, and used as a sample.
- R-2 Spherical silicone fine particles (trade name TAK-100 made by Takemoto Yushi)
- R-3 Spherical vinyl fine particles (trade name Gantz Pearl GSM1261 manufactured by Gantz Kasei)
- Test category 3 In order to investigate the usefulness of the hollow deformed fine particles and the like according to the present invention as a resin composition, the following resin composition preparation and molding production and evaluation were performed using a polycarbonate resin having higher optical characteristics and heat resistance requirements. I did it.
- Total light transmittance, haze Measured according to JIS-K7105 (1981) using a trade name NDH-2000 manufactured by Nippon Denshoku.
- Heat resistant colorability The test piece was cut out as a 200 ⁇ 200 mm sample film. The cut sample film was placed in a hot air circulating oven at a temperature of 80 ° C. and held for 180 minutes. Thereafter, the degree of coloration by heating of the sample film was measured by the b value using a color difference meter (trade name CR-300 manufactured by Minolta). Based on JIS-Z8729 (2004), ⁇ b was calculated from the following formula 1, and the results are shown in Table 7.
- the hollow irregularly shaped fine particles according to the present invention can sufficiently meet high demands as a cosmetic raw material and a resin composition.
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Abstract
Description
R1,R2,R3:ケイ素原子に直結した炭素原子を有する有機基
R4,R5,R6:ケイ素原子に直結した炭素原子を有する有機基
X,Y,Z:炭素数1~4のアルコキシ基、炭素数1~4のアルコキシ基を有するアルコキシエトキシ基、炭素数2~4のアシロキシ基、炭素数1~4のアルキル基を有するN,N-ジアルキルアミノ基、ヒドロキシル基、ハロゲン原子又は水素原子
・実施例1{中空異形微粒子(P-1)の合成}
反応容器にイオン交換水2000gを採り、この中に30%水酸化ナトリウム0.11gを加えて溶解した。更にテトラエトキシシラン199.7g(0.96モル)を加え、15℃で60分間、撹拌下に加水分解を行なった。別の反応容器にラウリルトリメチルアンモニウムエトサルフェート0.7g及び30%水酸化ナトリウム2.68gをイオン交換水350gに溶解した水溶液を調製して10℃に冷却し、撹拌下、この中に同温度に調整した前記の加水分解物溶液を徐々に滴下した。更にジメチルジメトキシシラン93.6g(0.78モル)及びメチルトリメトキシシラン267.9g(1.97モル)を加え、全体を30℃以下に保ちながら、1時間静置した。同温度で4時間保持した後、60℃まで加温して同温度で5時間反応させ、白色の懸濁液を得た。得られた懸濁液を一夜静置した後、デカンテーションにより液相を除去して得た白色固体相を常法により水洗し、乾燥して、中空異形微粒子(P-1)を得た。中空異形微粒子(P-1)について、以下の走査型電子顕微鏡による微粒子表面の観察及び測定並びに断面の観察、元素分析、ICP発光分光分析、FT-IRスペクトル分析、NMRスペクトル分析を行なったところ、この中空異形微粒子(P-1)は、表面(11)に複数の凹部(21)を有しており、内部(31)に一つの中空部(41)を有していて、表面(11)と中空部(41)とが長径の方向に沿う1本の割れ目(51)を介して連絡されている全体として紡錘形状の中空異型微粒子であって、長径(L1)の平均値が7.6μm、短径(L2)の平均値/長径(L1)の平均値=0.55であり、その構成単位として化1で示されるシロキサン単位を26モル%、化2で示されるシロキサン単位を53モル%及び化3で示されるシロキサン単位を21モル%(合計100モル%)の割合で有する有機シリコーン微粒子であった。
・中空異形微粒子(P-1)の中空部の確認:FIB(FB-2100形集束イオンビーム加工観察装置)を用いて、得られた中空異形微粒子の断面出しを実施した。得られた中空異形微粒子の断面を走査型電子顕微鏡(日立社製のS-4800形)を用い、8000~15000倍で観察してSEM像を得た。このSEM像から中空異形微粒子の中空部の有無を確認した。
実施例1と同様にして、中空異形微粒子(P-2)~(P-7)を合成し、実施例1と同様の観察、測定及び分析を行なった。
反応容器にイオン交換水100g、酢酸0.01g及び10%ドデシルベンゼンスルホン酸ナトリム水溶液1.8gを採り、均一な水溶液とした。この水溶液にテトラエトキシシラン56.2g(0.27モル)、メチルトリメトキシシラン74.8g(0.55モル)及びジメチルジメトキシシラン21.6g(0.18モル)を加え、30℃で30分間加水分解した。次に別の反応容器にイオン交換水700g、30%水酸化ナトリウム水溶液0.48gを加え、均一な水溶液とした。この水溶液を撹拌しながら前記の加水分解液を徐々に加え、15℃で5時間、さらに80℃で5時間反応を行ない、懸濁液を得た。この懸濁液を一夜静置した後、デカンテーションにより液相を除去し、得られた白色固体相を常法により水洗し、乾燥して、微粒子(R-1)を得た。微粒子(R-1)について、実施例1と同様の観察、測定及び分析を行なった。以上で合成した各例の中空異型微粒子等の内容を表1~3にまとめて示した。
使用量:原料として用いたシラノール基形成性ケイ素化合物の合計100モル%に対するモル%
加水分解触媒の濃度:化4で示されるシラノール基形成性ケイ素化合物に対する触媒の濃度(質量%)
縮合触媒の濃度:原料として用いたシラノール基形成性ケイ素化合物の合計に対する触媒の濃度(質量%)
界面活性剤の濃度:原料として用いたシラノール基形成性ケイ素化合物の合計に対する界面活性剤の濃度(質量%)
SM-1:テトラエトキシシラン
SM-2:テトラメトキシシラン
SM-3:メチルトリメトキシシラン
SM-4:プロピルトリブトキシシラン
SM-5:フェニルトリメトキシシラン
SM-6:ジメチルジメトシキシラン
SM-7:メチルフェニルメトキシエトキシシラン
CA-1:水酸化ナトリウム
CA-2:アンモニア
CA-3:酢酸
C-1:ラウリルトリメチルアンモニウムエトサルフェート
C-2:トリブチルメチルアンモニウム=ジエチルホスフェート
A-1:ドデシルベンゼンスルホン酸ナトリウム
S-1:無水ケイ酸単位
S-2:メチルシロキサン単位
S-3:プロピルシロキサン単位
S-4:フェニルシロキサン単位
S-5:ジメチルシロキサン単位
S-6:メチルフェニルシロキサン単位
割合:モル%
1*:表面に複数の凹部と長径方向に沿う1本の割れ目を有する全体として紡錘形状
2*:周面に長手方向に沿う一本の割れ目を有する全体としてラグビーボール様
3*:微粒子の表面に複数の凹部がある。
4*:微粒子の表面は滑らかな表面である。
5*:微粒子の内部に一つの中空部がある。
6*:微粒子の内部に中空部が無い。
長径(L1)の平均値、短径(L2)の平均値、凹部の最大径(m1)の平均値:単位はμm
吸油量:単位はml/100g
本発明に係る中空異形微粒子等の化粧品としての有用性を調べるため、以下の化粧品の調製及び評価を行なった。
表4に記載した質量比の割合の組成物を調製した。調製は、番号1~7の顔料を表4記載の質量比となるようにミキサーを用いて混合し、このなかに、別に予め番号8~12の成分を表4の質量比となるように採って40℃に加熱しておいた混合物を加え、再度混合した。この混合物を放置し、冷却した後、粉砕し、成形して、試料とした。
前記の試料について、女性パネラー20名により、その使用性(使用時の伸び広がり)及び使用感(べとつき、凹凸感、持続性)を表5に示す評価基準で個々に評価した。結果は平均点を四捨五入して表6に示した。
R-2:球状シリコーン微粒子(竹本油脂製の商品名TAK-100)
R-3:球状ビニル系微粒子(ガンツ化成社製の商品名ガンツパールGSM1261)
R-4:タルク
本発明に係る中空異形微粒子等の樹脂組成物としての有用性を調べるため、光学特性及び耐熱性の要求がより強いポリカーボネート樹脂を用いて以下の樹脂組成物の調製及び成形体の作製並びに評価を行なった。
ポリカーボネート樹脂(帝人化成社製の商品名パンライトK1285)100部に本発明に係る中空異形微粒子0.7部を加え、混合後、直径40mmのベント付二軸押出機を用いて、樹脂温度280℃で溶融混練し、押し出しを行なってペレット状の樹脂組成物を得た。次いで、このペレット状の樹脂組成物を射出成形機によりシリンダー温度230℃、金型温度60℃で成形し、200×500mmで厚さ3mmの試験片を作製した。
前記の試験片について、光学特性(全光線透過率、ヘイズ)及び耐熱着色性を次のように測定した。結果を表7に示した。
b2:加熱処理後のサンプルフィルムのb値
R-5:炭酸カルシウム
全光線透過率:%
耐熱着色性:Δbの値
21 凹部
31 内部
41 中空部
51 割れ目
L1 長径
L2 短径
m1 凹部の最大径
Claims (10)
- 表面(11)に複数の凹部(21)を有しており、内部(31)に一つの中空部(41)を有していて、表面(11)と中空部(41)とが長径(L1)の方向に沿う1本の割れ目(51)を介して連絡されている全体として紡錘形状の中空異形微粒子であって、長径(L1)の平均値が0.1~30μm、短径(L2)の平均値/長径(L1)の平均値=0.3~0.8であることを特徴とする中空異形微粒子。
- 長径(L1)の平均値が0.5~20μmの範囲にある請求項1記載の中空異形微粒子。
- 凹部(21)の最大径(m1)の平均値/長径(L1)の平均値=0.01~0.30である請求項1又は2記載の中空異形微粒子。
- 吸油量が50~150ml/100gのものである請求項1~3のいずれか一つの項記載の中空異形微粒子。
- 化2中のR1、化3中のR2及びR3が炭素数1~4のアルキル基又はフェニル基である請求項5記載の中空異形微粒子。
- 請求項5記載の中空異形微粒子の製造方法であって、下記の化4で示されるシラノール基形成性ケイ素化合物を20~45モル%、化5で示されるシラノール基形成性ケイ素化合物を50~75%及び化6で示されるシラノール基形成性ケイ素化合物を5~27モル%(合計100モル%)となる割合で用いて、先ず化4で示されるシラノール基形成性ケイ素化合物からこれを塩基性触媒存在下で水と接触させて加水分解することによりシラノール化合物を生成させ、次にこのシラノール化合物と化5で示されるシラノール基形成性ケイ素化合物及び化6で示されるシラノール基形成性ケイ素化合物とを塩基性触媒及びカチオン性界面活性剤を存在させた水性条件下で縮合反応させることを特徴とする中空異形微粒子の製造方法。
(化4、化5及び化6において、
R4,R5,R6:ケイ素原子に直結した炭素原子を有する有機基
X,Y,Z:炭素数1~4のアルコキシ基、炭素数1~4のアルコキシ基を有するアルコキシエトキシ基、炭素数2~4のアシロキシ基、炭素数1~4のアルキル基を有するN,N-ジアルキルアミノ基、ヒドロキシル基、ハロゲン原子又は水素原子) - 化5中のR4、化6中のR5及びR6が炭素数1~4のアルキル基又はフェニル基である請求項7記載の中空異形微粒子の製造方法。
- 請求項1~6のいずれか一つの項記載の中空異形微粒子を含有する化粧品原料。
- 請求項1~6のいずれか一つの項記載の中空異形微粒子を含有する樹脂組成物。
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| EP10777657.7A EP2433979B1 (en) | 2009-05-21 | 2010-04-27 | Irregular-shaped hollow microparticle, method for producing same, and cosmetic material and resin composition containing irregular-shaped hollow microparticle |
| CN201080003196.XA CN102209747B (zh) | 2009-05-21 | 2010-04-27 | 中空异形微粒、其制造方法、含有中空异形微粒的化妆品原料和树脂组合物 |
| US13/016,002 US20110129672A1 (en) | 2009-05-21 | 2011-01-28 | Non-spherical hollow fine particles, method of production thereof and cosmetic materials and resin compositions containing same |
| US13/688,569 US20130090411A1 (en) | 2009-05-21 | 2012-11-29 | Resin compositions containing non-sperical hollow fine particles |
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| US7790801B2 (en) * | 2007-07-24 | 2010-09-07 | Momentive Performance Materials Inc. | Organo-functional silicone in emulsion systems and process for preparing same |
| JP5631530B2 (ja) * | 2007-12-07 | 2014-11-26 | 日揮触媒化成株式会社 | 表面平滑性を備えた多孔質シリカ系粒子、その製造方法および該多孔質シリカ系粒子を配合してなる化粧料 |
| JP5375513B2 (ja) * | 2008-10-31 | 2013-12-25 | 信越化学工業株式会社 | シリコーンエラストマー球状微粒子をポリオルガノシルセスキオキサンで被覆したシリコーン微粒子およびその製造方法 |
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2010
- 2010-04-07 JP JP2010088277A patent/JP4994474B2/ja active Active
- 2010-04-27 KR KR1020117005219A patent/KR101564307B1/ko not_active Expired - Fee Related
- 2010-04-27 WO PCT/JP2010/057419 patent/WO2010134422A1/ja not_active Ceased
- 2010-04-27 EP EP10777657.7A patent/EP2433979B1/en active Active
- 2010-04-27 CN CN201080003196.XA patent/CN102209747B/zh active Active
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2011
- 2011-01-28 US US13/016,002 patent/US20110129672A1/en not_active Abandoned
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| WO2014098107A1 (ja) * | 2012-12-19 | 2014-06-26 | 国立大学法人東京大学 | 中空状有機シリカ構造体及びその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120022696A (ko) | 2012-03-12 |
| JP2011001537A (ja) | 2011-01-06 |
| EP2433979A1 (en) | 2012-03-28 |
| CN102209747A (zh) | 2011-10-05 |
| EP2433979A4 (en) | 2012-10-17 |
| US20110129672A1 (en) | 2011-06-02 |
| EP2433979B1 (en) | 2013-06-12 |
| JP4994474B2 (ja) | 2012-08-08 |
| CN102209747B (zh) | 2014-05-28 |
| KR101564307B1 (ko) | 2015-10-29 |
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