TW201208979A - Boron nitride with attached metallic particles, methods of making, and uses thereof - Google Patents

Abstract

The present invention relates to a powder including hexagonal boron nitride particles and metallic particles. The metallic particles are attached to at least a portion of a surface of the hexagonal boron nitride particles. The present invention further relates to cosmetic compositions, polymer blends, thermal management compositions, and catalyst compositions including the powder and methods of making the powder.

Description

201208979 VI. INSTRUCTIONS: This application claims the benefit of U.S. Provisional Patent Application Serial No. 61/376,874, filed on Aug. 25, 2010, which is hereby incorporated by reference in its entirety. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder comprising hexagonal boron nitride (hBN) particles and metal particles attached to at least a portion of the surface of the hBN particles. The invention further relates to a cosmetic composition, a polymer blend, a thermal management composition, and a catalyst composition comprising the powder, and a method of making the powder. [Prior Art] Products used in cosmetics and body care products must meet a variety of stringent requirements. They must be highly compatible with the formulation used for cosmetic purposes. Specifically, they are expected to be compatible with many other components (e.g., salts, salts, and surfactants). Moreover, the composition should be easy to apply and should leave a pleasant sensation to the skin. In addition, they should be generally available in aqueous, latex, depleted, and oil-containing binders, are readily processable, and should be easy to handle in clean and simple conditions. Uniformly scattered or removed. It is also expected that these compositions will not be stable and have no physical and chemical qualities of change, even in the long term, monthly growth and changes in pH and temperature. 201208979 There is still an unmet need for a makeup composition that satisfies all the sensation, coloration, and brilliance requirements. The present invention is directed to overcoming this and other deficiencies in the art. SUMMARY OF THE INVENTION The present invention is directed to a powder comprising hBN particles and metal particles. The metal particles are attached to at least a portion of the surface of the hBN particles. Another aspect of the invention relates to a cosmetic composition comprising the powder of the invention and a cosmetic agent. Yet another aspect of the invention relates to a polymer blend comprising the powder of the invention and a polymer matrix. The invention further relates to a system comprising a heat source, a heat sink, and a thermally conductive material connecting the heat source to the heat sink. The thermally conductive material comprises a powder phase comprising hBN particles and metal particles attached to at least a portion of the surface of the hBN particles. The invention further relates to a catalyst composition comprising the powder of the invention, and optionally a catalyst. The invention further relates to a method for making a powder comprising hBN particles and attached metal particles. The method involves providing hBN particles and treating the hBN particles under conditions effective to attach the metal particles to at least a portion of the surface of the hBN particles. The powders and compositions of the present invention provide a variable color formulation while maintaining a soft and smooth feel for human contact. These powders are compatible with a variety of cosmetic formulations at the end of 201208979 because they are easily spread on the skin and in the hair. Such compositions can enhance the brilliance or gloss associated with cosmetic products by improving the reflective properties of the product. In addition, the compositions can provide antibacterial properties which are useful particularly in cosmetic formulations. The present invention and compositions can provide useful absorption & uv especially in products and cosmetics for protecting against sun damage. The benefits are achieved without the need for additional components or processing steps, thereby reducing costs and simplifying manufacturing. The powders can also be used as fillers for thermal management applications, such as In composite materials, polymers, and fluids. [Embodiment] The present invention relates to a powder comprising particles and metal particles attached to at least one of the faces of the 胄hBN particles: Hexagonal boron nitride is an inert, lubricated ceramic material having a hexagonal crystal structure arranged like a stacked disk (similar to the structure of graphite ^. The known anisotropic properties of hBN can be seen by reference) The report is easy to explain, and the figure shows a hexagon in a hBN particle. Many of these cells constitute a BN platelet. The diameter of the particle platelet is the size of D. And refers to the a_ direction. BN is covalently bonded in the plane of the heart direction. The particle thickness is the size of the ruler shown by Lc, which is perpendicular to the diameter and refers to the 〇 direction. The hexagonal (ie, inward) is held together by a relatively weak van der Waals force. When crossing the surface of the "βΝ 201208979 hexagon gives a shear force greater than the weak van der Waals force At the time, the weak van der Waals force is overcome and the planes slide relative to each other. The relative convenience of the BN jaws to slide against each other may be one of the reasons for the high lubricity of hBN. In one embodiment, the hBN particles are hBN platelets. In another embodiment, the hBN platelets have an average platelet size of from about 〇5 microns to about 100 microns. In yet another embodiment, Most of the iso-platelets have an average platelet size of from about 6 microns to about 3 microns. As used herein, the "platelet size" of the hBN platelets is the size shown in Figure i. D. This is typically done by scanning electron microscopy, and radium Shot scattering techniques (using, for example, a laser scattering type particle size measuring device, such as Leeds and Northrup Microtrac X100 (Clairwater, FL)). In one embodiment, the particles have a thickness of Not more than about 5000 nm, more preferably between about 1 Torr and about 2 〇〇〇 nm, and most preferably between about 100 and about 1000 nm. The thickness of the particles is as shown in Figure 1. Size Lc. This is typically measured by scanning electron microscopy (SEM), indirectly from SEM diameter and surface area data, and if such platelets are not polycrystalline, sometimes using, for example, a SIEMENS Model D500 diffraction The instrument is measured by the X-ray diffraction line broadening technique (Hagio et al. 丄jm. Cer. «Soc. 72:1482-84 (1989), which is incorporated herein by reference in its entirety). The hBN platelets of the present invention may be in the form of a highly ordered hexagonal structure of hBN powder. The crystallization index of such a powder (Hubacek, 201208979 ·/. C^·. o/Vin (four), 104:695_98 (1996), which is hereby incorporated by reference in its entirety) is at least 〇12 (height hexagonal) The quantification of hBN), and preferably greater than 0.15. In one embodiment, the hBN powder has a crystallinity of from about 0.20 to about 〇·55, most preferably from about 〇30 to about 〇55. Typically, such starting powders are produced by "high temperature firing, processing of a raw material (mainly a layered (amorphous) boron nitride powder) (see Hagio et al.,丄彻·^ 1 6: 795_798 (1 997) 1 which is incorporated herein by reference in its entirety to produce the so-called "high-purity hexagonal boron nitride." In a preferred embodiment, a fine, layered structure of BN powder having a crystallinity index less than 〇12 is treated in nitrogen at about 1400 gamma to 23 Torr < JC for about 5 丨 2 小时 2 hours. . This heat treatment is typically used to produce a coarser coffee powder because the fine, <i(tetra) crystallites of the powdered structure of the layered structure become more ordered (crystalline) and larger during heat treatment ( > 丄 micron). ...the amount of (10) in the coffee starting powder is adjusted based on the potential use of the powder produced. Specifically, for cosmetic applications, the diced particles of the present invention may have a low weight percentage of (d) in order to increase the hydrophobic nature of the resulting powder (thus reducing dryness of the skin). For cosmetic applications, in one embodiment the coffee powder of the present invention has a size of from 3, more preferably from about 〇ppm to about 2 不. The low b2〇3 content can be achieved by careful washing (e.g., solvent washing using, for example, dry alcohol, cold water, etc.). Dry medium (by, for example, cold beam drying, in one embodiment the particles have a surface area of at least about 0.5 7 201208979

The specific surface area of m/g, preferably at least about lm2/g, and more preferably at least about 1.5 m2/gehBN particles, is typically measured by hydrazine adsorption techniques, such as using a surface area analyzer, such as a microscopic Flowsorb II 2300 ( Norcross, GA) In another embodiment, the hBN particles are hBN agglomerates. As used herein, the #81 poly system is used in combination with a set of nitrided lenticular crystals. In a practical manner, the 3H 4 agglomerates have an average agglomerate size of from about 1 micron to about 750 microns. In another embodiment, most of the hexagonal boron nitride agglomerates have an average agglomerate size of from about 1 micron to about 50 microns. In another embodiment, most of the hexagonal nitriding agglomerates have an average ring size of from about 5 microns to about microns. In other embodiments, most of the hexagonal nitrided polymers have an average agglomerate size of from about 5 microns to about 1 inch. The term "aggregate size" refers to the largest dimension that can be measured between two points of a particle. This size can be directly by microscopy (such as scanning electron microscopy and atomic force microscopy) or by indirect technique. (as in the case of moving bear light scattering). In one embodiment, the agglomerates of hBN have an agglomerate size of from about 1 to about 750 microns, or from about 1 to about 75 microns, to knife 1 to About 50 microns, or 1 to about 25 microns, or even to about 10 microns. As used herein, agglomerate size distribution ranges from the presence of: agglomerates to agglomerates of the largest agglomerates present, 丄= Fine is defined by the characteristic diameter of the Φ body, wherein the agglomerates are typically measured by laser scattering techniques across the range 2. Preferably, at least about 8 201208979 90%·95% Most preferably, at least about 98% of the agglomerates fall within the agglomerate size distribution. The nitrite group aggregates can be classified under conditions effective to achieve a desired agglomerate size distribution. Classification methods include screening, air classification, and washing, (see ㈤Η -,

Perry & Chilton, 5th Ed., MCGraw_Hn1 (1973), which is incorporated herein by reference in its entirety. U.S. Patent Nos. 6,764,975, 7, i8 =:, U.S. Patent No. 4,645, the entire disclosure of each of which is incorporated herein by reference. The agglomerates incorporated in the powders as disclosed herein can have different shapes. They may, for example, be presented in the form of spheres, flakes, fibers, officials, or polyhedra. They can also have a completely random shape. In one embodiment, the agglomerates are spherical in shape. According to the invention, a spherical shape means having a shape - similar to a sphere, such as a 22-sided polyhedron (e.g., substantially spherical). According to k embodiments, the spherical agglomerates may have an average agglomerate diameter of from about 丨 microns to about 5 〇 microns. More preferably, the spherical agglomeration has an average diameter of from about 5 microns to about 25 microns. More preferably, most of the 'spherical agglomerates have an average diameter of from about $micron to about 10 microns. Spherical agglomerates can be produced as described, for example, in U.S. Patent No. 6,645, (2), which is incorporated herein in its entirety by reference. In still another embodiment, the hBN particles are mashed nitride blocks 0 201208979 hBN particles of different size ranges can be used to produce a pigmented varying powder' wherein larger particles produce darker or darker colors. According to the invention, metal particles are attached to at least a portion of the surface of the hBN particles. In one embodiment, the metal particles are specular metal particles. As used herein, a mirror-like particle refers to a specularly-reflected particle that exhibits specular reflection, ie, at least a portion of incident light (or other type of wave) from a surface, from a single Light entering the direction is reflected to a single exit direction. In another embodiment, the metal particles are oxidized, sulfided, and/or nitrided. In this embodiment, the metal particles may form a metal oxide or a metal sulfide or a metal nitride. The metal particles may be used to impart different colors to the powders. For example, iron oxides, colors used to impart green or brown color, violent oxides can be used to impart colors such as dark amber or amethyst, cobalt oxides can be used to impart dark blue, and copper oxidation The object can be used to give, for example, a red color. Furthermore, the oxidized, sulfided and/or nitrided metal particles can be broken to increase the uv absorption of the powders. For example, zinc oxide and oxidized oxide can be used to increase the UV absorption of the powder. In one embodiment, the attached metal particles have a size of from 0.10 micrometers to about 25 micrometers. In another embodiment, the majority of the size of the metal particles ranges from about 〇丨 microns to about 1 〇 microns. ◎ The term size when used in connection with the metal particles refers to the largest size 涣 size possible Measured between two points of the metal particle. This ruler 10 201208979 can be measured directly by microscopy (such as scanning electron microscopy and atomic force microscopy) or by indirect techniques (such as dynamic light scattering). Metal particles of different size ranges can be used to produce different colored powders. For example, at a low concentration and a small size (about 3 to 5 microns), the copper particles attached to the surface of the hBN particles produce a pink cut. At a higher concentration and a larger size (about L. micron), the ruthenium particles attached to the surface of the hBN particles produced a beige hBN. Suitable metals for the metal particles include all metals. In an embodiment, wherein the metal particles include, but are not limited to, copper, silver, aluminum, tin, nickel, gallium, germanium, indium, lead, antimony, chromium, platinum, palladium, gold, iron, rhodium, or Many combinations of them. In a specific embodiment, the gold (four) copper (four). The metal (4) may comprise a mixture of two or more of the metals and/or alloys thereof. Thus, as used herein, the term "metal" also includes all alloys of the elements, as well as mixtures of such metals and alloys. The metal particles and compositions in the powders as disclosed herein may have different shapes. They may, for example, present the shape of a sphere 'sheet, fiber, tube, or body. They may also have a completely random shape. In one embodiment, the metal particles are spherical. According to the invention 'the metals Particles are attached to the J/a portion of the surface of the hBN particles. The metal particles may be attached by a mechanical attachment (eg, wetting of the surface of the hBN particles). Alternatively, 201208979 Metal particles such as S Hai may be attached to the surface of the hBN particles by chemical bonds or electrostatic bonds. Specifically, the hBN particles may be reacted with a surface reagent to produce - suitable for attachment of the metal particles. Surface connectors, such as those treated with a surface agent to modify the charge on the surface of the hBN particles to attach oppositely charged metal particles. Suitable surface linkers include, but are not limited to, amines, decanes, and ethane An alcohol such as polyethylene-imine, diethyl-amine, aminopropyltriethoxydecane, or an amine-polyethylene glycol. In a continuous manner, the hBN particles / or the metal particles are at least partially coated by a surface coating layer. In some cases, the surface coating layer may encapsulate the metal particles and the hBN particles. The surface coating layer may be made of glass. (an amorphous solid material, which is typically transparent or translucent) < a polymer (e.g., decane, decane, amorphous vermiculite, tetra-n-decanoate, polymethyl decane) Made of (methic〇ne), dimethyl sulphate, borate glass, and/or sulphate glass. This surface coating prevents oxidation or reducing agents (such as air, moisture, sweat) , oil, weak acid, or weak base) degradation of the produced metal particles. In a singular manner, at least about 5% to about 50% of the surface of the 5th and other hBN particles comprise attached metal particles. More preferably, at least about 5% to about 2 G% of the surface of the granules comprises attached metal particles. This may, for example, use a specific surface area of the nitridium (tetra) and an embodiment of the attached metal particles. In the mode of about 0.1 to about 0.2. The powder of the present invention has a coefficient of friction From 12 201208979 The mirror-like metal particles in the powder of the present invention are enhanced in gloss by direct reflection. In addition, the spherical mirror-like metal particles can be improved in haze or soft focus by diffuse reflection due to spherical morphology. In addition, metal particles having antibacterial properties, such as copper, silver, or gold, may be used to enhance the antibacterial properties of the specialty powder. Another embodiment of the present invention relates to a cosmetic composition comprising the present invention Powder and a cosmetic agent. As used herein, "cosmetic agent" means any active compound having a cosmetic or dermatological activity or alternatively any appearance capable of changing the surface (such as skin and hair), A compound that feels, and/or has a physicochemical property. The cosmetic composition according to the invention may, for example, be a water based, polymer based, or dry formulation. suitable. Formulations include, but are not limited to, creams, moisturizers, lotions, oils, ge Guhong A Gu Shi t Tian Nian private phase, packed phase, proteoglycan, mineral or animal origin Cosmetics red &, gc limbs into a knife, sugar, can be optional. Hydrolyzed and / or modified oligosaccharides and polysaccharides, amino acids, oligopeptides, peptides, proteins (匕They may optionally be hydrolyzed and/or modified), poly(amino acids) and enzymes, branched and branched, and branched, fatty acids and alcohols. , animal, plant and mineral steroids, neurosteroids 1, decylamine and pseudo-neuraminide, hydroxylated organic acids, UV masking agents, sputum oxidants and anti-free radicals Reagents, chelating agents, antidandruff cranial, _ _ 6 weeks 卽 sebum spill reagents, soothing agents, cation interface activity sword charm, can be secretive 7 cations and amphoteric polymers, organically modified Sexual and non-organic, 14 rA page machine modified siloxanes, mineral oils, vegetable oils

Class and animal oils, polyisobutylenes, 4 A mats and poly(a-olefins), esters, soluble 13 201208979 and knife-dispersed anionic polymers, soluble and dispersed nonionic Polymers, reducing agents, colorants and coloring materials (iv) hair blasting agents, foaming _, film formers, abrasive particles, and various compositions thereof, boron nitridinium, certain cosmetic compositions - components and for improvement. The feel of the touch of the preparations such as Hai. The hexagonal boron nitride powder is white, and: therefore, they are blended with a pigment in a color composition to obtain a desired color. The addition of the pigment requires additional processing steps and the use of additional components in the cosmetic composition to produce a composition that exhibits the desired characteristics as described above. However, the cosmetic composition may further comprise a pigment to obtain a desired color. Suitable pigments include, but are not limited to, Remaz〇le Black B, Reactive Blue 2, Reactive Blue _Sephar〇se CL6B, Reactive Blue 4, Reactive Blue $, Reactive Blue 15, Reactive Blue 72-agarose, Reactive Blue 114, Reactive Brown 1〇, f brown 10 agarose, lingual green 5, active green 5-agarose, active green 19, active green 19-agarose, active orange 14, active red 2, active red 4, active red sputum 20, reactive purple 5 , Reactive Yellow 2, Reactive Yellow 3, Reactive Yellow 13, Reactive Yellow 81, Reactive Yellow 66, and various mixtures thereof.

It is known that the dispersion of fine metal particles provides both an antibacterial effect and a bactericidal effect. In addition, metal particles are known to provide gloss or brilliance in certain compositions. Therefore, metal particles are used in certain cosmetic compositions. European Patent Application No. EP 1,082,952, the entire disclosure of which is incorporated herein by reference in its entirety, the disclosure the disclosure the disclosure the disclosure the disclosure of The layer makes it possible to obtain a cosmetic which exhibits a shiny and wear-resistant metallic appearance. In addition, PCT 14 201208979 Patent No. WO 02/03913, which is hereby incorporated by reference in its entirety, discloses the N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N a particle of 0.4% to 0.75% and a film former having a high molecular weight for producing a mirror type of cosmetic, that is, 'in this case' not only has the color of aluminum but also brilliance and reflects a target A cosmetic of the ability of multiple individual components. European Patent Application EP 1, 〇 64, 918, which is incorporated herein by reference in its entirety, discloses that the metal granules are also incorporated in the compositions used for application to the hair to improve brilliance. The cosmetic composition of the present invention is useful for, for example, properties for enhancing appearance, improving uv absorption, enhancing photoluminescence, and improving antibacterial properties as compared with conventional cosmetic compositions. Another embodiment of the invention relates to a polymer blend comprising the powder of the invention and a polymer matrix. The polymer blend is, for example, in thermal interface management. As used herein, the term "thermal interface management" refers to a compound of the thermal matrix having a thermal matrix of > 1 W/m/K when produced in a composite or fluid form (used in microelectronics). Suitable polymers for use in the polymer matrix according to the present invention include, for example, an anthraquinone epoxy resin formulation. Polymer (for example, Na), surface 〇0, person who can be processed by melt processing mm ^ _ like σ, polyester, polyimine I amide, urethane resin 1 ^ plastic, propylene ), low score + county, polyolefin and fluorine polymerization low knife amount of fluid, epoxy resin combination. In the case of a compound of 眚+ and their consistent application, 兮& | is uniformly dispersed within the matrix of the polymer 15 201208979. In one embodiment, the polymer blend comprises from about 3 Μ Μ % to about 80 wt. % powder. However, the loading of the powder of the present invention in the polymer blend is determined by a number of factors, including the desired flexibility of the resulting polymer blend, the flowability of the polymer blend, and the desired Thermal conductivity. For example, a lower loading of hBN powder, such as 30 wt.% paper 50 wt. 〇/0 is desirable for highly flexible applications, but may result in lower thermal conductivity. It is therefore desirable to have a loading from about 5 Å wt% to about 8 Å wt% in a still thermal conductivity/low flexibility application. The thermal conductivity of the resulting polymer blend is determined by the loading, dispersion, and other factors. In one embodiment, the polymer blend has a thermal conductivity of from about! w/mK to about i5 w/mK. Another aspect of the invention relates to a system comprising a heat source, a heat sink, and a thermally conductive material connecting the heat source to the heat sink, wherein the thermally conductive material comprises a powder phase, the powder phase comprising Coffee particles and metal particles attached to at least a portion of the surface of the h BN particles. As used herein, a diffuser is a gaseous, liquid, or solid matter entity that receives heat transfer from its surroundings. Heat sources suitable for the present invention include: integrated circuit chips, power modules, transformers, and other electronic devices. Suitable heat sinks in accordance with the present invention include, for example, finned (ηηηΜ) aluminum, copper, tantalum, and diamond. A thermally conductive material as used herein may be a composite material, a poly 16 201208979 compound, or a fluid. In one embodiment, the thermally conductive material is a polymer such as a processable polymer, a polyester, a phenolic resin, an oxy-fired polymer (eg, ruthenium rubber), acrylic, wax, thermoplastic polymer, low Molecular weight fluid, or epoxy resin molded compound. The thermally conductive material preferably comprises from about 3 〇 wt % to about 80 wt % of hBN powder according to the present invention and has a thermal conductivity of from about 1 w/mK to about 15 W/mK. Another embodiment of the present invention is directed to a catalyst composition comprising the powder of the present invention, wherein the attached metal particles function as a catalyst. The term "catalyst," as used herein, refers to any compound or composition that has the ability to enable a chemical reaction to proceed at a rate that is generally faster than otherwise possible, or under different conditions (eg, to promote gaseous species). The decomposition of N?2, c?, CO:, s?2, etc.) The catalyst composition may further comprise a separate catalyst, such as gamma alumina. The catalyst composition according to the present invention may comprise a catalyst support, For example, γ-oxidation or using hBN as a carrier. Another aspect of the invention relates to a process for producing a particle comprising hBN

And a method of attaching a powder of metal particles. The method involves providing hBN particles and treating the hBN particles under conditions effective to attach the metal particles to at least a portion of the surface of the hBN particles. In one embodiment, the treating step comprises combining the hBN particles with an evaporation phase comprising the metal particles under conditions effective to attach the metal particles to the hBN particles. According to this embodiment, a vapor phase comprising the metal particles can be produced by heating a gold source, causing melting of the metal, and then forming an evaporation phase comprising metal particles. The evaporating phase metal particles (which are combined with the coffee particles) are attached to the hBN particles (e.g., condensed onto the particles). Alternatively, an evaporating phase comprising the metal particles can be produced by mixing the hexagonal nitride particles with the metal particles to form a powder mixture and heating the powder mixture to form The vapor phase of the metal particles is included. The granules and the base phase may be mixed in a container (eg, a closed (four) smear) such that the metal particles may be in contact with and attached to the hBN particles, in an embodiment. The heating of the metal source is carried out in an inert or reducing atmosphere. The inert or reduced atmosphere can be obtained, for example, by using an inert gas or a mixture thereof. In another embodiment, the heating of the metal source is from about 25 cC to about 1 〇〇〇 γ at atmospheric pressure above the melting point of the metal, preferably about 500 oc to about 550 ° C at atmospheric pressure. A temperature of loooc>c. In yet another embodiment, the processing step includes mixing the hBN particles with the metal particles such that the metal particles are mechanically attached to the hBN particles. "Mixing can be in a mixer (eg, a v-type blend) And the Cowles dissolver) dry or wet. In another embodiment, the processing step includes attaching metal particles to the surface of the hBN particles using atomic layer deposition ("ALD"). The technical department on ALD is for example in Anhur Sherman's 18 201208979

Layer Deposition for Nanotechnology, Ivoryton Press (2008) t, which is hereby incorporated by reference in its entirety, in yet another embodiment, which is directed to reacting the surfaces of the hBN particles or metal particles. To form a surface connector, and to attach the metal particles by the surface connector. Suitable surface attachments include, but are not limited to, amines, decanes, and ethylene glycols such as polyethyleneimine, triethylamine, and aminopropyltriethoxydecane. Such compounds can be added to a suspension of hBN in either deionized water or alcohol (丨_1〇ν〇ι% of hBN) by repeated addition of an excess of surfactant (above 1 〇 wt %) and repeated Rinsing to remove unadsorbed surfactant and adsorbing onto the hBN particles. The surface treatment of the BN or metal particles and the attachment of the particles onto the hBN can be done together or separately. In another embodiment, the processing step includes attaching metal particles to the surface of the hBN particles using thermal spraying or plasma spray casting. Thermal spray or plasma spray casting techniques, for example, in Handbo〇k of Thermal Spray Techn〇1〇gy by J〇sephR. Davis,

This is illustrated in International Press (2004), which is hereby incorporated by reference in its entirety. In one embodiment, the method further comprises oxidizing, vulcanizing, and/or nitridating the attached metal particles to form, for example, an oxide, or a sulfide, or a nitride. In an embodiment, the method further comprises coating the hBN particles and/or at least a portion of the metal particles with a surface coating. The surface coating layer may be made of glass or a polymer such as decane, 矽19 201208979 oxyalkylene 'amorphous vermiculite, tetraortho Silicate, poly-alkyl oxane, and/or diterpene. Oyster sauce, made. In one embodiment, the entire surface of the βH and other hBN particles and the metal particles are encapsulated with the surface coating layer. The boron nitride powder and composition of the present invention can exhibit a lubricious feeling and softness. The touch, which is attributed to the lubricating properties of boron nitride. This helps provide and improve the texture and quality of a cosmetic product by indicating that the product spreads evenly onto a surface (e.g., skin, scalp, or hair) while also providing a color formulation. This represents a significant advantage over pigmented oils, waxes, or other lubricating materials traditionally used in cosmetics. Oil or fat based products are sometimes associated with deleterious negative effects such as allergic reactions, skin inflammation or outbursts, bacterial infections, and skin pore blockage. The powders and compositions of the present invention overcome these limitations without sacrificing the preferred soft and lubricious feel in cosmetic products. The powder of the present invention provides an enhanced appearance when used in cosmetic products. The use of mirror-like metal particles may result in enhanced brilliance or gloss in such cosmetic products. The attached mirror-like metal particles enhance gloss due to direct reflection. Further, the spherical metal particles can incorporate a soft focus haze into the composition. In addition, the use of known metal particles such as copper, silver, platinum, and gold for their antibacterial properties can help prevent or treat bacterial skin infections. The oxidation of some metal particles such as titanium or zinc or tin to form Ti 2 or ZnO or Sn 2 can increase the absorption characteristics of the ultraviolet rays. The oxidation of other particles such as copper or iron corresponds to the topography 20 201208979 into CuO or π ^ ., ^ 3 to add other inorganic pigments that mimic color. # & The formation of a sulfide layer is a pigment-like zinc light. Producing ZnS and providing a photoluminescence for hBN, in addition, the um* of the present invention can reduce the manufacturing cost and improve the color, by color, by the attached metal particles or their compounds, and vulcanization. The oxygen of this a 儿 a a 不 不 不 不 不 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧 氧Use of Organic Pigments 'They have been Example 1 - Nitrogen (tetra) (BN) powders used as starting materials. Table 1 lists the hBN tablets in the following examples and powder manufacturing methods. Table 1 Diameter (μιη) —------ Range of particle size (μιη ) ------- Particle shape --------- Method of powder manufacturing 1 6 ------ 16 0.1 -20 —---—-- 0.1-50 platelet----- high temperature fired high temperature fired 3 30 0.1-125 plate crystals are fired in order to produce hBN powder in Table 1. To make the boric acid or boron oxides mixed with the atmosphere or ammonia. (: _18G (rc reaction Q 5 · ΐ 2 hours to produce coarse 21 201208979 or chaotic structure Amorphous boron nitride powder or agglomerate (see Hagio et al. "Microstructural Development with Crystallization of Hexagonal Boron Nitride," 5 J. Mat. Sci. 16:795-798 (1997), which is incorporated by reference. The full text is here. The resulting powder or agglomerate is then fired at 1400 ° C to 2300 ° C for 0.5-12 hours under nitrogen and ground to break any agglomerates or agglomerates. The agglomerated hBN powders used in the following examples and powder manufacturing methods are listed. No. Average particle size (μηι) Table 2 Particle shape 50 Spherical 2 75 and high temperature fired spherical 3 750 spherical high temperature fired Use of high temperature firing as described in Table 3 below - 50 wt% to prepare the loaded BN slurry. The agglomerated hBN powder in Table 2: 22 201208979 Table 3 Solids - 50 wt. ° / 〇 liquid - 50 wt.% 1400 g 95% deionized water (pH 9) 600 g 2.5% PEG-80003 (binder) 2.5% 111M4 (surfactant) 1900 g 50 g 50 g XP1011BN1 HPP 325 BN2

Saint-Gobain Ceramics & Plastics, New York, Amherst 2 Saint-Gobain Ceramics & Plastics, Group, Amersto Temple 3 Union Carbide Chemicals and Plastics Company, Inc 4 Cranbury, Rhodoline 111M, Rhodia, Inc New Jersey measured the appropriate amount of powder and liquid listed in Table 3 to adjust the pH of the deionized (DI) water to 9-9.5. The surfactant was added to the water and it was stirred using an impeller for 5-10 minutes. The powder was slowly added to the surfactant-water solution and stirred for 15 to 30 minutes to allow complete dispersion. The binder (PEG 8000) was then added and the slurry was mixed for an additional 15-30 minutes. The bn slurry was spray dried using a pentr〇nix nebulizer - the inlet temperature was set to 235. (:, it produced an outlet temperature of 85 ° C. The flow rate of the dressing was 6 〇 ml / min, and the sprayer (Pentronix, Detroit, Detroit) was set to 12,5 rpm. A larger atomizer speed can be used in the spray drying chamber to obtain a larger particle size. A suitable screen size is obtained in the Rotap unit to achieve the desired particle size range. Example 2 - Attached to hBN particles Preparation of mirror-like copper particles 23 201208979 Side powder sample (the sample has a size range which will be nitrided as described in Example 1 above including hexagonal boron nitride platelets (0.2 to 0.5 g), surrounded by 0.1 μιη to 125 μπ〇 and a spherical agglomerate of hBN (〇5 (the agglomerate has a size range of i μΐΏ to 75 μηη and pm to 75〇Mm (0.5 g)) placed with molten copper (7 g) In a boron nitride crucible, the crucible is closed and then heated to 2 ° C for 5 to 4 hours under argon or nitrogen. Copper evaporates from the smelted copper and condenses to the hBN a platelet or a surface of the hBN agglomerates. The coagulation phase consists of spherical copper particles (its The diameter is (3_1 〇μη〇, the spherical copper particles are preferentially attached to the surface of the hBN at the edge of the lamella or at the edge of the plane of the plane of the lamella, ie attached To the group of crystal faces such as (〇11), (〇1〇), the spherical copper particles are attached to the surface of the crucible and the boron nitride particles in the germanium.

Then, the hBN particles were analyzed using a scanning electron microscope for the presence of the metal particles. The results are shown in Figure 2-5. As seen in Figure 2, copper particles are attached to the outer edges and stepped edges of the boron nitride platelets. Specifically, the hBN platelets (gray) have copper particles (white) attached to the outer edges and the edge edges. The hBN platelets and steel particles were heated to 2 〇〇〇 under argon in a crucible for four hours. In addition, Figures 3, 4, and 5 show attachment to spheres having different sizes. Copper particles on the outer surface of the boron nitride agglomerate. In Figures 3 and 5, the hBN agglomerates and copper particles were heated to 2 〇〇〇〇c for 5 hours under argon in a hanging column. 24 201208979 Example 3 - Comparison of different metal particle sizes will be a sample of the nitrided butterfly powder produced in Example i above (including hexagonal nitride platelets (2g), which have sizes ranging from ~ to Mix with copper powder (2g) (with a diameter of 51〇_) and place it in gasification. Close (4) and 'then heat it to 1500 °C-2000<^ under qi or nitrogen 〇5 to 00. After heating to 1500 °, the copper powder is melted and attached to the hBN platelets at the position of the copper. The size of the copper droplets is the same as the starting material, ie the diameter is 5- 10 μηι. After heating to 2〇〇〇〇c, the - part of the 1 copper droplet is evaporated from the condensed copper droplets and And coagulating the surface of the BN powder. The concentrated condensation consists of spherical steel particles (which are straight (4) 5.5-2 叩 and 3·10 μιη), and the spherical copper particles are preferentially attached to the platelets of the hBN surface. At the edge or at the edge of the plane of the platelets. Then, the particles are analyzed using a scanning electron microscope for the presence of the metal particles. The results are shown in Figures 6A to 6B, where X has different sizes. The copper particles (white) are attached to the outer surface of the crystal (gray). Figure 6A shows the copper particles attached after heating to 2000. (There are extremely large 5.5_2_ and 3_1〇) 〇η〇16Β shows copper particles attached after 15 〇〇c (its diameter is 5 _ ^ 〇μηι ) 〇 Example 4 - Comparison of different metal particle concentrations will be the same as the nitride produced in Example 1 above Samples of powder (including 25 201208979 hexagonal boron nitride platelets (2 g ), which have sizes ranging from 〇丨μιη to 125 μπι) and different ratios (ranging from 1〇wt% to 50 wt%) Copper powder (5-10 μηη diameter) is mixed and placed in nitride The crucible is closed and then heated to 1.1500 C-2000oC under argon or nitrogen for 0.5 to 4 hours. After heating to 15 Torr, the copper melts and The minimum weight loss is attached to the hBN platelets at a preferential location such that the final content of the attached copper particles is very close to the initial concentration. After heating to 2 〇〇〇 (:: after the copper A portion of the droplets evaporate from the molten copper droplets such that the final content of the attached copper particles is 2% to 5% less than the starting material. The hBN particles were then analyzed to assess the effect of different concentrations of the attached copper. Figure 7 is an exemplary photograph of hBN powder having four beige hue obtained by varying the concentration of copper microspheres attached to the hBN platelets (shown in grey scale). As shown in Fig. 7, the hBN powder including 10 wt% to 25 wt% of copper particles exhibited a light beige appearance, and the hBN powder including 33 wt% to 50 wt% of copper particles exhibited a dark beige appearance. Example 5 - Preparation of Silver Particles Attached to hBN Particles A sample of boron nitride powder (including hexagonal boron nitride platelets (2 g )) having a size range of From 〇. 1 to 125 μπ〇 and different proportions (ranging from 1〇% to 5〇wt%) of silver powder (the direct control is 0.5-1 μηι and 5-10 μιη) are mixed and placed in a nitriding shed坩埚中. Heat the 坩埚 in argon to 26 201208979

1 500 ° C - 2000 ° C continuous " Hai silver evaporates from molten silver droplets such as A and condenses onto the surface of BN powder. The concentrated phase consists of spherical silver particles having a diameter of 1:1 〇 (four), and spherical silver particles such as ruthenium are attached to the surface of the hBN at preferred positions. The spherical silver particles are attached to the surface of the crucible and to the nitrided particles in the crucible. The silver powder was melted and attached to the hBN platelets after being heated to 1. at the preferred position attached to the same material as the starting material, ,,, to 1500 C. Silver droplet size and

These hBN particles were then analyzed using scanning electron microscopy for the presence of metal particles. The results are shown in Figure 8 (silver particles are shown in white and hBN platelets are shown in gray). The hBN platelets and silver particles were heated to 2000 ° C under argon for one hour in a crucible. As shown in Fig. 8, 'silver particles are attached to the boron nitride platelets. Example 6 - Preparation of Gold Particles Attached to hBN Particles A sample of boron nitride powder as produced in Example 1 above (including /, boron nitride platelet (丨g), which has a platelet Sizes range from 〇" to 125 μηη) in 2 〇ml of deionized water and react with a red aqueous gold colloid (1 〇 ml) containing approximately 100 urn of gold particles at room temperature to allow gold The particles are preferentially attached to the amine bond at the end of the hBN platelet. The color change of the hBN powder is a light pink color. For comparison, h BN treated with aminopropyl triethoxy decane to increase the concentration of terminal amine bonds is mixed with the same aqueous gold colloid at room temperature. A higher concentration of gold particles is attached to the hBN surface. On, produced - 27 201208979 blue-violet powder. Then, the hexagonal boron nitride particles were analyzed using a scanning electron microscope for the presence of the metal particles. The results of "gold particles" (shown as white in the figure) attached to the boron nitride platelets (grey background) are shown in Fig. 9. Example 7 - Preparation of oxidized copper particles attached to hBN particles 〇 1 g of a boron nitride powder sample prepared as in Example 4 above (the sample includes hexagonal boron nitride platelets, the platelets It has a size range of 0.1 to 125 μπ〇 and 50 wt% of copper particles (having a diameter of 5_1() μΓη) heated to 400 ° C for 1 hour in air. The color of the hBN powder turns dark gray, indicating the formation Black copper oxide. Then 'the hexagonal boron nitride particles were analyzed using a scanning electron microscope for the presence of an oxidized coating on the metal particles. The results are shown in Figure 1A. As shown in Figure 10, The surface of the copper particles attached to the boron nitride platelets exhibits a hairy surface characteristic of the thermally formed copper oxide which is thermally oxidized at 400 ° C for one hour in air. Example 8. Preparation of Copper Particles with an Encapsulated Protective Film Attached to hBN Particles 〇·5 g Sample of Boron Nitride Powder Prepared in Example 4 as described above (the sample includes hexagonal nitridation) Boron platelets, which have a size range of 0.1 to 125 μπ Mixed with 50 wt% of copper particles (5-μ直径 in diameter and 50 ml of isopropanol (IPA), which has been dissolved in the isopropanol 28 201208979 0.5 ml of 3-aminopropyltriethoxydecane (APTES) 7 1 乂 and 0.25 ml of deionized water. The suspension was stirred at room temperature for 48 hours, then filtered, rinsed, dried, and solidified at 1 °C-2000C for 30 minutes to form a package. Sealed protective film, although the preferred embodiments, items, and descriptions have been described in detail herein, those of ordinary skill in the art will be able to make the present invention without departing from the spirit of the invention. Different modifications, changes, etc., and such are therefore considered to be within the scope of the invention as defined below: Force 2: Included within the scope of the invention as defined in the accompanying drawings. A pattern of hexagonal boron nitride structure. Figure 2 is a photomicrograph of a scanning electron micrograph (SEM) showing metal particles attached to the hBN platelets. Figure 3 is a hBN. platelet (where steel particles are attached) Photocopy of the SEM of a spherical agglomerate with its surface. Figure 4 is hBN An optical stereomicroscopic image of a spherical agglomerate of lamellae, which attaches to the surface of the smectic granules. Figure 5 is a hBN (where copper smear is attached. SEM of spherical agglomerates on their surfaces. Figures 6A and 6B show copper particles attached to the outer surface of the nitride-deposited sheet without J size. Figure 7 is shown in gray scale A photograph of the hBN powder having four beige hue is shown. 29 201208979 FIG. 8 shows: FIG. 9 shows that the copper oxide 4 shown in FIG. 10 is attached to the silver particles on the hBN platelets. Gold particles attached to the hBN platelets. Copper particles having thermally formed surface features on the hBN platelets (not seen). 30

Claims (1)

201208979 VII. Patent Application Range: 1. A powder 'The powder comprises hexagonal boron nitride particles and metal particles attached to at least one portion of a surface of the hexagonal boron nitride particles. 2. The powder of claim 1, wherein the hexagonal nitriding granules are hexagonal boron nitride platelets. 3. The powder of claim 2, wherein the lamellae have an average platelet size of from about 〇5 microns to about 1 〇〇 microns. 4. The powder of claim 3, wherein the majority of the platelets have an average platelet size of from about 6 microns to about 3 microns. 0. 5. As claimed in claim 1 The powder according to the item, wherein the hexagonal nitriding granules are hexagonal nitriding louver agglomerates. 6. The powder of claim 5, wherein the chelates have an average agglomerate size of from about i microns to about 75 microns. 7. The powder of claim 5, wherein the agglomerates are spherical in shape. The powder of claim 1, wherein the hexagonal gasification shed particles further comprise a surface linker for attaching the metal particles. 9. The powder of claim 8, wherein the surface linking system is selected from the group consisting of amines, decanes, and ethylene glycol. 10. The powder of claim 9, wherein the surface linking system is: polyethyleneimine, triethylamine, aminopropyltriethoxycarbazide, or amine-polyethylene glycol. 11. The powder of claim i, wherein the metal particles are from about 0.01 microns to about 25 microns. The powder of claim 5, wherein the majority of the metal particles are from about 0.1 micron to about 10 microns. 13. The powder of claim i, wherein the metal particles are: copper, silver, aluminum, tin, nickel, gallium, antimony, indium, lead, antimony, chromium, and! Ba, gold, iron, zinc, chin, or a variety of their combinations. The metal of the present invention is in the form of a powder as described in claim 1, wherein the shape of the metal particles is spherical. The powder bundle of claim 1, wherein the metal particles are mirror-like metal particles. 17. The powder of claim 1, wherein the metal particles are oxidized, vulcanized, or nitrided. 18. The powder of claim 1, wherein The metal particles are attached to the surface of the hexagonal boron nitride particles from about 5% to about 50%. 19. The powder of claim 18, wherein the metal particles are Attached to the surface of the hexagonal nitride (tetra) particles from about 0.5% to about 20%. 20. The coefficient of friction as claimed in the patent application is from about 〇. J 1 of the powder, #中的粉末至约约。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。 The powder according to claim 21, wherein the surface coating layer comprises a glass or a polymer. The powder according to claim 22, wherein the surface coating layer comprises decane. , oxane, amorphous vermiculite, tetra-n-decanoate, poly曱 矽 矽 、 、 、 、 、 、 24 24 24 24 24 24 24 24 24 24 24 24 24 24 24 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末 粉末And a hexagonal boron nitride particle and a metal particle. 25. A cosmetic composition comprising: the powder according to the scope of the patent application, and a cosmetic agent. 26. The cosmetic product of claim 25 a composition, wherein the cosmetic agent is selected from the group consisting of: a creamy class, a lotion, an oil, a powder phase, a filling phase, a proteoglycan, a mineral or Cosmetics of animal origin, classification, saccharides, oligosaccharides, polysaccharides, amino acids, oligopeptides, peptides, (4) plastids, poly(amino acids), enzymes, branched and unbranched Fatty acids and alcohols, animals, plants, or mineral steroids, ceramides, pseudo-neuraminides, Zhaojihua organic acids, UV^_, antioxidants, reagents used to fight free radicals , art and secrets, earthworms, meals, dandruff , regulating seborrhea 34 201208979 :::,, soothing agents, cationic interface-active swords, cations and amphoteric: organically modified and non-organically modified broken oxygen plant mineral oils, a 'class, Animal oils, polyisobutylenes, poly(a-olefins), esters, and dispersed anionic polymers, soluble and dispersed nonionic polymers, reducing agents, colorants , a coloring material, a foaming agent, a film forming agent, an abrasive granule, and a plurality of compositions thereof. 2. The composition of claim 25, further comprising: - a pigment. The composition of claim 27, wherein the pigment is selected from the group consisting of Remazole Black B, Reactive Blue 2, Reactive Blue-Sepharose CL6B, Reactive Blue 4, Reactive Blue 5 , Reactive Blue 15, Reactive Blue 72-agarose, Reactive Blue 114, Reactive Ding 10, Active Standard 1 Ο-agarose, Reactive Green 5, Reactive Green 5-agarose, Reactive Green 19, Reactive Green 19-agarose, Reactive Orange 14, Reactive Red 2, Reactive Red 4, Reactive Red 120, Reactive Violet 5, Activity 2, Reactive Yellow 3, Reactive Yellow 13, Reactive Yellow 81, Reactive Yellow 66, and combinations thereof configured. 29. A polymer blend comprising: a powder as described in claim 1 and a polymer matrix. 35 201208979. The polymer blend of claim 29, wherein the polymer matrix is selected from the group consisting of the following: • a sulphur oxide polymer, a ring Oxygen resin formulations, melt-processable polymers, polyesters, polyimines, polyamines, amine-based ethyl acrylate resins, awake: plastics, acrylic acids, Terpenoids, thermoplastic polymers, low molecular weight fluids, epoxy resin molding compounds, and various combinations thereof. - a catalyst composition comprising the powder "» 3 as described in claim 1 2. The catalyst composition as described in claim 31, the steps comprising: - a catalyst" 33. The catalyst composition of claim 32, wherein the catalyst is γ-alumina. 36 201208979 35. If the patent application scope is item μ, the system-integrated circuit chip, the power module, and the apricot: 'where the heat source is an electronic device. 36. The device described in claim 34 is a finned type of copper, tantalum, or diamond. ...the heat dissipation 37. The material of the 34th item of the patent application-composite material, polymer, or first-class system, the system described in item 37 of the fourth section of the hot material J, wherein the heat conduction k is from the bottom, Polymer, the group of polymers processed from the following, polyester, phenolic resin, molten acid, hydrazine, thermoplastic polymer, low molecular weight fluid: =, propylene compound, and various thereof combination. Epoxy Resin Molding 39. A method for making a powder comprising boron = particles and attached metal particles, the method comprising: providing hexagonal boron nitride particles; and attaching the metal particles to The crucible is treated according to the condition that m, the surface of the square nitride-cut particles > is effective on one part. The method of claim 39, wherein the treatment package 37 201208979 is attached to the hexagonal nitrogen for the metal particles. The hexagonal boron nitride particles are combined with an evaporation phase including the metal particles under effective conditions on the boronized particles. 41. The method of claim 40, wherein the combining comprises: mixing the hexagonal boron nitride particles with the metal particles to form a powder mixture, and heating the powder mixture to form the The evaporation phase of the metal particles. 42. The method of claim 39, wherein the sintering comprises: . The particles of hexagonal boron nitride are bonded to the metal particles such that the metal particles are mechanically attached to the hexagonal boron nitride particles. 43. The method of claim 39, wherein the treating comprises: applying the metal particles to the surface of the hexagonal boron nitride particles by atomic layer deposition. 44. The method of claim 39, wherein the treating comprises: reacting surfaces of the hexagonal nitride particles to form a surface linker and attaching by the surface connector The metal particles. The method of claim 44, wherein the surface linking system is selected from the group consisting of amines, decanes, and ethylene glycol. 46. The method of claim 45, wherein the surface attachment system is: polyethyleneimine, triethylamine, aminopropyltriethoxydecane, or amine-polyethylene glycol. 47. The method of claim 39, further comprising: oxidizing, vulcanizing, or nitriding the particles. 48. The method of claim 39, further comprising: coating the hexagonal boron nitride particles or at least a portion of the metal particles with a surface coating. 49. The method of claim 48, wherein the surface coating layer comprises glass or a polymer. The method of claim 49, wherein the surface coating layer comprises: decane, decane, amorphous vermiculite, tetra-n-decanoate, polymethyl oxalate, diterpene Emu oil, borate glass, borosilicate glass, or a variety of combinations thereof. The method of claim 48, wherein the surface is filled with the hexagonal boron nitride particles and the metal particles. 40