TW200823148A - Flame-retardant magnesium hydroxide compositions and associated methods of manufacture and use - Google Patents

Abstract

The invention provides a submicron magnesium hydroxide particulate composition comprising a first distribution of magnesium hydroxide particles having a D50 of no more than about 0.30 μm, a D90 of no more than about 1.5 μm, and a BET surface area of at least about 35 m<sp>2</sp>/g, which can be used as a flame-retardant additive for synthetic polymers, optionally in combination with other flame-retardant additives such as nanoclays and larger-sized magnesium hydroxide particulate compositions. Polymeric resins comprising the submicron magnesium hydroxide particles and methods of manufacturing submicron magnesium hydroxide particles are also provided.

Description

200823148 IX. Description of the Invention: [Technical Field] The present invention relates to a cerium hydroxide particle composition comprising submicron particles, a method for producing such a composition, and a polymerization incorporating the composition as a flame retardant object. [Prior Art]

Thermoformed polymers that are easily molded into a variety of shapes, sizes, and thicknesses are commonly used in every consumer and industrial item. Although their use has become ubiquitous, such polymers do have disadvantages that must be noted, and the increasing awareness of the dangers of fire and smoke associated with the use of plastics has led to legislation and standardization of flame resistance in plastic formulations. Organic halide compounds, antimony trioxide, and combinations thereof have been used as anti-offset additives for plastics and materials. However, such additives produce significant amounts of smoke and have a body upon exposure to the flame. As a result, attempts have been made to minimize their use in favor of less toxic alternatives. ▲ Feng Mizi Qian Oxidation as a safer progeny has become increasingly popular, in the inclusion of plastic products, Hydroxide (4) Division 344 1 line electricity see the application of various yttrium oxide: main end properties, with smoke suppression, hydrogen • Body and plastic compound ==, _ (four) additive, and in the case of non-sulphur solution that prefers anti-flame and smoke suppression, it often incorporates elasticity, material 0 magnesium hydroxide according to decomposition reaction:

The following reaction formula C0 starts to absorb heat at about 330 ° C. 5 200823148

Mg(〇H)2 !S&gt; Mg0玛ο (Ι) ^Mg(OH)2 endothermic decomposition reaction, #在燃_, is a few structures. The water released during the sputum has a dilute (four) gas body and a second barrier to prevent oxygen from supporting the flame. Smoke from the salt water town of Xianxin: The fog-inhibiting shellfish is due to the dilution of water vapor on the flammable gas or the formation of coke with the polymer. Emulsified magnesium has these advantages, and in some applications its use can be problematic. For example, 'to obtain a very high level of resistance (for example, UL94 = grade)' flame retardant additive must be added in large amounts, for example, more than 6 〇 weight, which is a negative effect on the physical properties of the polymer resin and makes it inappropriate. For some applications such as wire and cable insulation. While existing oxidized granule compositions provide some resistance to flame and smoke, there are still ancestors in the art that provide even higher levels of fire protection without sacrificing the advantageous physical properties of the polymeric resin to which the flame resistant composition is added. The demand for the compound. Mouth [Invention] The present invention provides a pour green compound suitable for use as an anti-additive in a polymeric tree assay, and the present invention has a submicron process and a high particle form. (4) Anti-flame properties: The hydrazine-based composition of the present invention has a BET surface of more than about 0.3 micrometers and a trace of no more than about u micrometers of 35 square meters per gram of BET surface, ', Degenerate. In the smothering of the W~ sub-distribution, the characteristics of R in the specific complement, the volcanic magnesium particles are surfactants in the case of the example 6 200823148 or lipid coating, especially good surface activities such as various fatty acids or fatty acid salting agents Stearic acid _ and stearic acid. β The above-mentioned hydrogen-wheel-kneading compound can be mixed with other anti-complementing additives by other anti-flame agents characterized by non-female distribution, for example, and the eight objects can be less than about 0.9 micron (10) and not super-made. The BET surface of % square meters / gram is lying on the second distribution of silk particles mixed. In a further aspect, the present invention provides a flame-resistant additive composition comprising (8) a "first" distribution of recorded _ sub-distributions having a D50 of at least about 0.9 microns and no more than about 3 square meters / gram of (d) surface and, and (b) H compound, which comprises a plurality of nano-soil particles '(8) oxyhydrogenated particles of m. The second distribution has a D50 of no more than about 0.30 microns, no more than about 15 Micron D9 〇 and no more than about 35 square meters / gram of BET surface; or (d) a combination of 1 and (9). Preferred nanoclay is derived from magnesium aluminum carbonate. In another aspect of the present invention, there is provided a polymerizable resin composition comprising a synthetic polymer such as a thermoplastic polymer, a thermosetting polymer, or an elastomer, and the above magnesium antimony oxide composition or A mixture of the flame retardant additive compositions of the present invention. A variety of synthetic polymers can be used in polymer resin compositions, such as olefin (α-olefin) polymers and copolymers, copolymers of ene-ene and monoene, copolymers of ethylene-acrylic acid, copolymerization of polystyrene and styrene. , thermoplastic polyolefin (TPO), vinyl chloride or vinyl acetate or copolymer, phenoxy resin, polyacid, polyamide resin, propylene and methacryl resin, butadiene, poly A copolymer of amino phthalate, polyester, polycarbonate, polyketone, diallyl phthalate resin, phenolic resin, ring 200823148, alcohol, linoleum, and synthetic rubber. Further, the present invention provides a molded polymer member comprising the above-mentioned polymerizable resin composition having the anti-magnesium hydroxide particles of the present invention or the above-mentioned anti-resistance and ▲ and the above-mentioned mouth. The polymer parts are based on the desired materials. Each of the savoury meals consists of a cable and wire core, an electronic chip, a steam wheel, and the like. In another aspect, the present invention provides a method of producing the above magnesium hydroxide composition. The method preferably comprises providing oxidized granules (e.g., particles having a D5G particle size of at least about 10,000 Å), or an aqueous hydrate of oxidized impurities. The aqueous slurry preferably comprises no more than about 62 weights. The percentage solids are based on the total weight of the slurry, and the impurities are not more than about 〇5 mm of the mill 2 medium for the barrier step, and in some embodiments, not exceeding k, force 0.3 pens during the barrier step, The percentage of solids in the raw water liquid is maintained at or below about illusion % by adding an aqueous solution and/or the ship's silkness is adjusted by adding aqueous reduction or viscosity _ at no more than about 1,000 centipoise. The RPM of the mill is not more than 6 _ and not less than about 2,000 (for example, 3, 〇 00). Preferably, the aqueous slurry has a solids content of no more than about i/o solids, more preferably no more than about 5%, and most preferably no more than about 45%. Preferred examples of the milled media include oxidative, sulphuric acid, and doped tetragonal crystal polycrystals. [Embodiment] The present invention will now be described in more detail below, however, the invention may be embodied in various forms and should not be construed as being limited to the specific embodiments described herein. This disclosure makes it possible to meet applicable regulatory requirements. The singular forms "a", "an", and "the" are used in the <RTI ID=0.0> </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; , means having at least one particle having a size in the range of less than about 1 micron. All particle size parameters referred to herein, such as the median diameter value, the D90 value, and the like, are used by the pass CR〇MERlTICS (I Nc)rcr()ss5 GA SediGraph 5100 particle size analyzer measurement. Before testing, dry the sample and smooth it through a 5〇 mesh screen (US standard), then place 3 〇g in a clean 1〇 〇ml

In a beaker with a stir bar, add 50 ml of A-ll SEDISPERSE or water, stir the sample for a few minutes, then place the sample in ultrasonic cleaning for 2 minutes. Then discard the sample for a few minutes and place it in the ultrasonic cleaning for an additional 2 inches. In minutes, the picker samples the sample and the surface is sampled. The sample can then be used for testing on a particle size analyzer. Particle size measurement refers to uncoated particles. , as used herein, the name, the DX value, where X is 50 or 90, is the second, and is not the upper limit of the measured diameter of the particle at the bottom of the particle distribution. The D50 value of 〇·3 μm indicates that the particles in the distribution have particles larger than G.3 μm and 5 G% by mass. In the micrometer, the D50 value also indicates the central value of the particle size. The surface area, expressed as the surface area of the particles according to the present invention, 9 200823148 in square meters per gram, and calculated by the bet method determined by the surface area. FIX) WORRB manufactured by MICROMERITICS (g) N〇rcr〇ss, GA The II 2300 instrument is used to perform this measurement. The present invention provides a magnesium hydroxide particle composition characterized by the presence of submicron particles having a small particle size and a large surface area, when used as an additive for a polymeric resin Contributing to improved flame retardant and smoke suppression properties. Although the invention is not subject to any particular theory of operation, the smaller particle size and increased surface area of the compositions of the invention are intended to be heterogeneous within the polymeric f-tree more The flame retardant hydroxide of the present invention is also substantially free of _-, and typically contains no more than about 2, 5 parts per million chlorine. (for example, no more than about 2 parts per million, (8) 〇) and no more than about 75 parts per million of fluorine (for example, no more than about 5 parts per million of fluorine), this is a typical problem. The hexagonal prismatic crystal is formed. 7 The hairpin composition has a grain-control central value of not exceeding (four) micrometers, and the car is preferably no more than about 0.25 micrometers, more preferably no more than 3 0.22 micrometers, and most Preferably, it is not about _micron. In some embodiments, the central value of the granules does not exceed about ai8 microns, or even no more than about = 5 or not more than (four) 〇.13 microns, in other words, the present wealth micron particles ^ The clock center value will be in the range of about (four) micrometers to about a25, more preferably about .8 to about 0.20 micrometers, and most preferably about _ to about (four) micrometers (for example, 〇·11, 0·12 ' 〇·13, 〇· 14. Or 〇·ΐ5 μm) The D90 value of the submicron composition of the present invention is preferably no more than about 6 〇 micro" 'good for not exceeding 5. G age' and most preferably not exceeding 4.0 microns. 200823148 In some embodiments, the D90 value does not exceed about 3.5 microns or does not exceed about 3.0 microns. A particularly preferred embodiment of the invention is characterized by a D90 value of no more than about 1" micron or no more than about 1.0 micron.

The magnesium hydroxide particle compositions of the present invention have a ruthenium surface area of at least about 35 square meters per gram, preferably at least about 4 square meters per gram, and most preferably at least about 50 square meters per gram. In some embodiments, the 表面积 surface area is from about 48 square meters per gram to about 8 square meters per gram. Some particularly preferred implementations have a ruthenium surface area of at least about 55 square meters per gram or at least about 6 square meters per gram. An exemplary BET surface area of the submicron magnesium hydroxide compositions of the present invention comprises about 35, about 38, about 4, about 42, about 44, about 46, about 48, about 50, about 52, about 55, about 58, about 60. , about 62, about 65, about 68, about 7 〇, about 72, about, about %, 8 〇 square meters / gram. The oxyhydrogenated composition of the present invention can be produced by various methods or dry grinding methods and equipment known in the art. As is known in the art, a typical wet type machine having a reduced particle size comprises a seal _, which is referred to as a barrier to granule or bead filling, and these __生^ The rotation of the scrambler applies energy to the week. The force of the mussels and the forces generated by the particles in the slurry of the particles that are continuously raised through the barrier chamber are retained: the velocity of the hybrid medium, the product flow rate, Body content, cake type includes horizontal disc mill, high energy 200823148 type. In one aspect of the invention, the magnesium hydroxide compositions of the present invention are manufactured using wet milling techniques and bead mills, and there are several commercially available bead mills that can be used to carry out the process of the present invention. In a preferred embodiment, the bead mill is a D-out horizontal bead mill manufactured by Willy A. Bachofen AG of Switzerland and having a 6-inch hair continuous lining chamber and a polyurethane impeller ( Type KDL). The barrier medium used in the method of the present invention can be made. Preferred milling media comprise yttria, yttrium, and ytterbium doped tetragonal polycrystalline (YTZP). However, other media such as stainless steel or tungsten carbide can also be made. Preferably, the size of the medium is not more than about 0.5 mm, more preferably not more than about 〇3 mm (for example, about α1 mm to about 〇3 mm), and the preferred grinding medium is cerium oxide. Or other cerium oxide based media having a density of from about 3 Torr to about 6.8 gram per cubic: knife. Preferably, the flow rate through the bead mill is from 1 to about 3 liters per second and the rpm of the grinding machine is maintained at about 6,000 and not less than about 2 during the milling operation. (eg, about 2,5 〇〇, about 3, 〇〇〇, about 3,500, about 4, 〇〇〇, about 4,500, about 5, _, or about 5,5 〇〇). Typical milling times range from about i to about 6 hours. A single mill can be used to practice the invention. In this particular embodiment, the milled slurry can be circulated through the mill until the desired particle size is achieved. Alternatively, two or more mills can be used in series, each continuous mill containing a smaller size of milled media or each mill containing the same size of milled media. As indicated in Example 1 below, it has been decided that the percentage of solids in the aqueous slurry of magnesium oxide particles injected into the mill 12 200823148 affects the ability of the milling process to produce the desired sub-greens. In a difficult manner, the initial aqueous slurry of magnesium hydroxide particles having a solids content of no more than about 62% by weight, based on the total weight of the aqueous slurry, more preferably not more than about 55°/. , and the best is no more than about 52%. In a specific embodiment, the percentage of solids in the slurry does not exceed about 50% or does not exceed about 45%. Typically, the solids content during the barrier step is between about 25% and about 62%, more preferably from about 40% to about 62%. The soil can monitor the solid content and viscosity of the aqueous slurry during the milling process, and if necessary, add an additional aqueous solution to the desired viscosity or desired solid content, or add a reduction. Surfactants (e.g., anionic surfactants) or polyfoams known in the art (e.g., (iv) ymer Ve resistant es provide (d) _ s-amine polymer to adjust viscosity during milling and/or milling.

When the aqueous liquid of the slurry is absorbed on the newly exposed surface of the magnesium hydroxide particles (when the particle size is lowered due to the hindrance), the viscosity of the slurry is increased, and when grinding W, it is preferable to maintain the reduction at no more than about W (8). PCT (4), better = more than about _ centipoise' and optimally no more than about _ centipoise. At the beginning of the barrier method, the viscosity of the starting material is typically as low as the exposure, but the milling method will increase the viscosity over time. High and low viscosity _ miscellaneous, the hybrid is increased due to the increased surface area of the particles during the obstruction:: interaction: the night becomes more _^ ”, and the sand is reduced due to insufficient lubrication between the particles 13 200823148 The low-thinking 'this lubrication is needed to promote particle compaction. If the viscosity is too much for the phase t(iv) diluted slurry, the particles are separated too far and not sufficient for human body cockroaches. In some specific examples ' during the milling period It can maintain the solidity of the slurry = ^ or ^ liquid viscosity at the desired level and does not need to take the solution during the control period ^ = whole &amp; some parameters 'for example by adding more aqueous r have a foot: quality 3黏 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋 疋More preferably, the water-soluble solution of the oxidized town particle of the starting material; = the aqueous solution known in the art of tau is more preferably, the aqueous solution w, H t water comprises the addition of each fine b, for example, the viscosity == the main barrier device Magnesium hydroxide particles in an aqueous slurry: = providing magnesium hydroxide product, for example by M- or mag s satiric oxidized town _EL_ qualitative magnesium oxychloride particles have not less than about 0 9 = =, in the feed more than about ” metric example, the D50 particle size of the feed material is about 】 to about 8 microns. Integrated application: raw =: = shape two _, it will be with water /, 丄mj a 'weathering town, with the above-mentioned needles Wei magnesium feeds = ·,,, negative grain size is large pole. The magnesium oxide dimerizable form or the oxygen transport liquid can be used to carry out the reaction. 14 200823148 = Further embodiments of the present invention, the magnesium hydroxide particles can be coated with an active agent, preferably an anionic surfactant. To reduce the grain

= Agglomeration _ Dedicated to the record can be more quickly dispersed. The fatty acid and its salts or _ are preferred surface actives and their derivatives have 1 or more carbon atoms. Exemplary surfactants: 3 stearic acid, oleic acid, erucic acid, lauric acid, behenic acid, and palm quinone and their metal (such as hard fat, stearic acid g_, stearic acid mother, - Wenna oil from potassium, oleic acid j, sodium palmitate, potassium palmitate, palmitic acid = sodium laurate, lauric acid, and lauric acid, ammonium stearate, sodium laurate Potassium octadecane sulfate, sodium lauryl sulfonate, and disodium 2-sulfoethyl _ a- tartaric acid. Other surface-active coating agents that can be used include (i) decane coupling agents such as vinyl B. Oxydecane, vinyl-tris(2-methoxy)decane, methacryloxypropyltrimethoxydecane, 7-aminopropyltrimethoxydecane, cold-(3,4-ethoxycyclohexane Hexyl)ethyltrimethoxydecane, 7-glycidoxypropyldimethoxydecane and decylpropyltrimethoxydecane; (3)) titanate-containing coupling agent such as isopropyl triiso-tear Barium titanate, isopropyl hydrazide (dioctyl pyrophosphate), isopropyl tris(N-amine ethyl-amine ethyl) titanate, and isopropyl trimethyl phthalite bet titanate, (iii) containing Shaoluo mixture such as acetaminophen Propyl ester; (called phosphates such as mono or dilipids of orthophosphoric acid and stearyl alcohol, mixtures of these esters or metal salts of these esters or amine salts of these esters, and (v) 15 200823148 Anionic surfactants such as guanamine _ bonded aliphatic carboxylic acid ester, guanamine-bonded sulphuric acid vinegar, sf amine-bonded sulfonate, guanamine-bonded alkyl allylic acid vinegar, higher alcohol Such as stearyl sulfate, polyglycol ether sulfate, ester-bonded sulfate, ester-inducing sulfonate, ester-bonded alkylallylsulfonic acid, and ether-bond The alkyl allyl sulfonate. These surface-active coating agents may be used singly or in combination of two or more. When the magnesium hydroxide particles are coated on the surface of the above surface treatment agent, the surface coating may be used. The technical towel is carried out in various wet or dry coating methods known in the art. In the wet process, for example, a surface treatment agent in the form of a liquid or an emulsion is added to the green oxygen, followed by machine-mixing. In the dry f method, a surface treatment agent in the form of a liquid, an emulsion, or a lysate is added to the oxidized age, and the oxygen oxidized particles are _ or in the absence of heat in a mixer, such as a HENSCHEL 8 mixer, completely disturbed. In some cases, during the mixing method must be inviting heat to dissolve the surface treatment agent and, to promote effective mixing, The heat may be supplied from an external source or from the age of the mixed eucalyptus. The granules of the county active coating 2 are typically about 1 G weight percent or less based on the weight of the oxymagnesia particles. In some alternative embodiments of the present invention, the submicron ammoxidation composition of the present invention may be used in combination with or substituted for the nano-sludge material. The too-f dry material is known and tied in the art. Commercially available from AkzoNobd's ^=冉PERKAUTE Chennai clay, this material is a non-meter-sized inorganic particle, for example, a small piece of particle with a T-meter size in at least one dimension. The small flake particles can be 16 200823148 = is a sister with a very high aspect ratio (the ratio of the length of the object to its thickness): long: the particles can also be described as having a very small thickness or as difficult as the U Child, for two A fairly flat opposite particle whose thickness is the distance between the two faces, and the size of the face = material: relatively small, the small piece of the particle contains the exfoliated layer without 4 useful exfoliation Inorganic materials are derived from natural 戋 ^ 为 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Cifu stone, slanted water _ stone, Si 4 stone and similar materials, and the::, more than two = compound, carbon _ and its analogues. These laminates generally comprise particles having a layer of 28 angstroms or less and a plurality of Wei salt platelets having a thickness of about 4] 2 angstroms, =d exchange cations or anions such as 〇H, N (v, c〇32_, Na+,

Ca, K or Mg+2 is present on the interlayer surface. = 丝状状_小片状子 has a layer of individual layers or /, a plurality of layers having a thickness of less than, about 10, preferably less than about 5, and more preferably less than about 3, and more preferably 1 or 2 layers. Preferably, each of all or substantially all of the individual layers is intermingled to form individual platelet-shaped particles: having an average thickness of less than about 20 angstroms: two = 约 about 3-6 angstroms) and ranges from about The longitudinal hair (length. thickness) of _ to about 1, more typically from about 300 to about 400. , , ' 17 200823148 There are many methods for producing polymeric materials comprising nano-clay, and these methods can be divided into three categories: (1) in-situ polymerization; (2) solution intercalation; and (3) melting and spalling. In the first two methods, such materials can be prepared by a process in which a bulking agent, such as a long chain organic cation, and a water soluble oligomer or polymer, in an adjacent layered silicate layer (e.g., a swellable clay) Intercalation or combination is interposed to thereby increase the interlayer spacing between adjacent citrate layers such that the polymer chains can be included between the citrate layers when the layered citrate and polymer melt are mixed. For example, U.S. Patent No. 5,552,469, WO 93/04117, Japanese Patent Publication No. 8-151, 449, 7-207, 134, 762, 7-33, 092, 8-259, 806, and 8_259 846. Melt stripping or melt intercalation is described in p〇lymer Layered Silieate

Nanocomposites, Giannilis, Adv· Mater·1996, 8, No. 1,29. Unlike in-situ t- or &gt; trough liquid intercalation, melt spalling involves only soil minerals and polymers without the need for a dilatant or dispersion medium. However, a swelling agent can be used to enhance the secret of the soil mineral by the specific polymer. On the ride, the mineral and polymer are mixed and heated to a temperature above the polymerized recording point. In the nano-alumina/polymer nanocomposite, two types of lions are possible. Wherein the structure is inserted, wherein the single-extended polymer bond is inserted into the layer to have a good ordering reduction of the parent polymer/inorganic layer. In another, termed non-sequential or delaminated, the inorganic layer is substantially uniformly dispersed in the polymer at random orientations in the polymer matrix. In a preferred embodiment, the nano-soil used in the present invention is obtained from magnesium sulfate, an anionic dry soil containing Mg and an inorganic plate of A1, one of which has 18 =:==:=3 200823148 m. The above-described sub-micron magnesium hydroxide composition and/or nano-material (which is also referred to herein as "reading surface can be mixed with other flame-resistant materials" such as other hydroxide ages before being incorporated into the polymeric resin. For example, the sub-micron additive can be mixed with a commercially available hydroxic acid tilting composition, such as MAGSHIELD® S or MA_ELDOTp hydrogenation product. If the submicron additive scale dihydrogen oxide particles are blended, the submicron = touch type The amount is present in an amount of at least about 3 weight percent of the total weight of the oxidized town particles and the sub-microf-additive, more preferably at least about ubiquinone and at least about J0%. In one embodiment The submicron additive of the present invention is present in an amount of from about 3% to about 30% by weight based on the total weight of the submicron additive to other anti-Sakis, such as other recorded particulate particles, preferably from about 3% to about I5% by weight. Exist, 曰, and this hair touch (Channai® soil material) The mixed larger size magnesium hydroxide particle distribution typically consists of a D50 of at least about 0.9 microns (e.g., D5 约 from about 1 to about 8 microns) and no more than about π square a ft. Preferably, it does not exceed about % square meters per gram, and most preferably does not exceed about 15 + square meters per square meter of surface area. Suitable for mixing magnesium oxide particles with the composition of the present invention. The form of the distribution is also suitable for use as a particulate material in the feed slurry used to make the submicron hydroxide hydride composition. As can be appreciated, the blend of the submicron magnesium hydroxide composition and the second particle distribution of the present invention is known. The particle composition produced by the composition is characterized by the two sub-sizes and the BET surface area of the blended smear and the BET surface area. We can potentially age in a certain polymer tree weaving f anti-plus_ total amount.

In another aspect, the present invention provides a composition of the remainder, and a (4) manufactured thereby, comprising the present money and planting compound and/or nano-sand and a synthetic resin. It is a plastic resin, a thermal resin, or an elastomer. Typically, the polymer falls into one of the following polymer classes: polyolefin, polyassay (including all epoxy resins, polyacids, polysapphire, poly-imine, and poly(diphenyl) Shout)), polyamine (including polyurea), polyamidoximine, polyaryl ester, polybenzimidazole, ?« (including polycarbonate), polyurethane, polyimine, poly-farming , Hope tree mites, Ju Shi Xia, poly; oxime oxygen, agglomerated diimine, polyimine, azo polymer, polysulfide, and poly石 wind. The synthetic resin to be blended with the niobium oxide particles (or nanoclay) of the present invention is preferably a synthetic resin generally used for producing molded articles, as exemplified by olefin (α-olefin) polymers and copolymers, for example. Polyethylene (such as high density polyethylene, low density polyethylene, linear low density polyethylene, and ultra low density polyethylene), polypropylene, ethylene/propylene copolymer, polybutylene, and poly (4_methyl small) Pentene); a copolymer of a terpene hydrocarbon and a diene (eg, ethylene-1_butylene copolymer, ethylene-4-mercaptopentene copolymer, propylene small butene copolymer, and propylene-4-mercapto-1) -pentene copolymer); ethylene-propionate copolymer (for example, ethylene ethyl acrylate resin, ethylene methyl acrylate copolymer resin, and ethylene acrylate copolymer resin (ΕΑΑ)); Styrene and styrene total 20 200823148 Polymers such as acrylonitrile-butadiene-styrene (ABS), acrylonitrile-styrene copolymer (AS), and acrylonitrile-acrylate-styrene (AAS); thermoplastic polymerization Olefins (TPO); vinyl chloride or vinyl acetate polymers or copolymers such as polyvinyl chloride, polyacetic acid Ester ester, polyvinylidene chloride, ethylene-vinyl chloride copolymer, and ethylene-vinyl acetate copolymer (EVA); phenoxy resin; polyacetal; polyamine resin such as nylon-6 and resistant Polyene-66; acrylic and methacrylic resins, butadiene; polyurethane; polyesters (eg polyethylene terephthalate (PET) and polybutylene terephthalate ( pBT);polycarbonate;polyketone; diallyl phthalate resin; phenolic resin; epoxy resin; melamine resin; alkyd resin; urea resin; and rubber such as styrene butadiene rubber (SBR) ), ethylene-propylene-diene monomer (EpDM), butadiene rubber (BR), chloroprene rubber (CR), chlorinated polybutene rubber (CpE), chlorite yellowing CSM), acrylonitrile-butadiene rubber (nbr), isoprene rubber (JR), butyl rubber (IIR), methyl amino decanoate rubber, propylene ester rubber, fluorenone rubber, and fluororubber. The compound may be a homopolymer, a random copolymer, a block copolymer, an alternating copolymer, an unpaid terpolymer, a block terpolymer, an alternating terpolymer of any of the foregoing polymers. a ruthenium (for example, a grafted hydrophile, a ruthenium, or a genus thereof), and the like. The molecular weight of the unidentified compound in the present invention is a limiting factor, and the number average molecular weight is typically about 250. It is in the range of more than 500,000 Da, although any molecular weight may be used without departing from the invention. The polymer resin composition further comprises one or more additives known in the art without departing from the invention. Exemplary further additives are included, but 21 200823148 : 'Color enamel (for example, fluorescent dyes and pigments), gas plasticizers, impact modifiers, fillers, nucleating agents, moisturizing agents, etc., in addition to the magnesium hydroxide particles of the present invention Flame Retardant, Nvwa, Antioxidant, Fungicide, Metal Deactivator, Thickener, Noodle (4) 丨 消 Defoaming Agent, Polymer Alloy Compatibilizer, Contact Agent, Emulsifier, Parent Union &quot;丨, butterfly, granules, glidants, and other substances added to enhance the processing properties or the terminal of the polyf component to make the secret. Such additives are conventionally used and typically do not exceed 1% by weight of the total composition. The total amount of the flame-resistant additive to be added to the polymeric resin, which means that the total amount of all the particles of magnesium hydroxide is similar to that of the four-dimensional reading additive (for example, sub-micron magnesium hydroxide or nano-clay), which can vary and according to various factors. It contains the desired degree of flame resistance, the form of the polymeric resin, the article to be formed, and the like. Typically, the total amount of flame resistant additive will range from about 1 to about 80 weight percent based on the total weight of the polymeric resin (with additives), more preferably from about 35 to about 80 weight percent, and most preferably from about 5 to about 80% by weight based on the total amount of polymeric resin and flame resistant additive. Preferably, a sufficient amount of flame resistant additive, such as a sufficient amount of magnesium hydroxide or nanoclay, is added to obtain a UL94 of at least V2 or better, preferably V1 or better and most preferably V0 (device and device have Test Standard for Flammability of Plastic Materials for Medium Parts, 5th Edition; Underwriters Laboratories Inc.). Further preferably, a sufficient amount of magnesium hydroxide or nanoclay is added to obtain a temperature of no more than about 270 Joules/gram Kelvin, preferably no more than about 26 FJ/kg Kelvin, and most preferably no. A heat release (HRC) of more than about 250 Joules per gram of hunger. ^ 22 200823148 As indicated above, the flame resistant additive may comprise a combination of a nanoclay material or a submicron magnesium hydroxide composition as described herein with other flame resistant additives such as ruthenium large size magnesium hydroxide particle distribution. Such a combination comprises a larger size magnesium hydroxide particle distribution such as MAGSHIELD (DS or MAGSHIELD® UF magnesium hydroxide product combined with nanoclay, larger size magnesium oxychloride combined with submicron strontium oxide particle distribution according to the invention) a particle distribution, and a distribution of larger size magnesium hydroxide particles combined with both the Nass and the submicron magnesium hydroxide particle composition. The composition may be in the form of an intimate mixture prior to addition to the polymer resin, or Two or more flame-resistant additives may be separately dispersed in the polymer resin, and in this combination 2 the 'larger size magnesium hydroxide particle distribution system is typically present in an amount of about 5 (four); 1 percentage by weight based on the total polymer resin weight More preferably, it is from about 5 to about 65 weight percent 'and sub-micron magnesium hydroxide or smectites, about 2% by weight, preferably about 4 to about 20% by weight 'and most preferably from about 6 to about 15% by weight. Such added chelates are typically in the form of a mixture which can be prepared using the hearing + known combination device. σ /tb comprises the hydrogen oxyhydroxide of the present invention The composition of the compound or other anti-additive additive can be carried out by any method known in the art and used: kneading, kneading, and difficult-to-synthesize polymer resins and hydroxide deuterium = other additives To form a homogeneous mixture (IV). For example, a mixture of oxyhydrogenated ruthenium and a polymeric resin can be kneaded using an open-ended, single-screw, or conical screw extruder, a Banbury mixer, or the like. Further, the dry resin mixture can be molded by any method known in the art, for example, 7 into 23 200823148 =, extrusion molding, blow molding, compression molding, rotary forming, blow bag forming, and the like. Made into the shape of the last desired object. The polymer parts formed using the synthetic polymer resin / magnesium strontium oxide particle mixture described above can be used in various applications and products, such as electric gauges and wire sheaths for power transmission and communication. , various electronic devices, automotive components, commercial buildings and residential products, mass transit vehicle products, or in a variety of aerospace / defense applications. The submicron hydroxide complex of the present invention may also be a thief - species Additives to prevent the formation of ash in the fuel-electricity plant due to the burning of fossil fuels. For this purpose, the magnesium hydroxide composition may be in the form of a final form, an aqueous slurry, or a dispersion of a hydrocarbon fluid (eg 2 In the form of oil, kerosene, or engine oil. Regardless of the form, magnesium strontium oxide is added to the fuel oil (for example, fuel oil No. 6). In a specific embodiment, the sounding compound is about 25 to about 8 G weight percent of concentration = knife weight 2 = oil, based on the total weight of the dispersion, more preferably from about 30 to about f (4) - aspects, the hair oxygenating composition, such as magnesium oxide or stone counter Magnesium sulphate (for example, magnesite, test carbonic acid can be used as a reaction for other magnesium derivatives). The submicron size of the compound, the gamma oxime oxygen transfer = expected to show the same submicron size, Its many applications are further illustrated by the following non-limiting examples. Experiment 24 200823148 Example 1 Submicron Magnesium Hydroxide Particles Manufactured using different sizes of oxidative rectifications in the == formula, the initial test system = the size range of driving to 0.8 revolutions _ paving f, hindering time _ Clear, _ paste_赖=下=表1

Media Size, RPM mm 0.6-0.8 3,000 0.6-0.8 3,000 0.6-0.8 4,500 0.6-0.8 4,500 0.6-0.8 6,000 Time Hour 1 2 2 3 1 53⁄4% of the slurry 55.8 55.8 55.8 50.4 50.4 D50, micron 0.51 0.44 0.75 0.858 0.864

From the above test, it was found that the increased resistance time at the machine was found to have a negative effect on the ability to grind Mg(OH)2 particles, and it was observed that the water holding the particles in the suspension was absorbed by the kinetic energy of the thief method. The newly exposed surface area, and the "filament _, paved f / Mg (the effectiveness of the contact area is reduced. In an attempt to correct this problem and further reduce the particle size, the media size will be reduced to 0.3 mm, borrow The % solids of the slurry was reduced by at least water and the rpMs of the grinder. The (10) of the machine feed liquid was 1.70 house meters, and the results of these tests are shown in Table 2 below. 25 200823148 Table 2 MM RPM time, hourly slurry solids % D50, micro 0.3 2,000 1 52.0 0.295 0.3 2,000 2 52.0 0.284 0.3 2,000 3 44.0 0.249 0,3 2,000 4 44.0 0.238 0.3 3,000 1 50.8 0.261 0.3 2,000 3 52.0 0.130 u by making these changes It was found that the RPMS of the mill can produce Mg(〇H)2 particles with a chest less than 〇3 mm within 1 hour of milling time. The results of 14 results increase the grinding time to help further particles. Size reduction ' _ is if %_ remains at less than about 55% and the viscosity remains less _ _ centipoise. _ Interested in the increase in the hour of grinding time to 3, _ job 3 to New Zealand (10) for coffee micron The utility model has a D50 of 0.2951⁄4 m compared to 2,000 RPM at 1 hour intervals. However, 'other machine resistances and solid loads are also effective. Example 2 Man made from rice bran magnesium oxide particles Further examples of human and research are as follows: G1 to G.3 micron hydroxide is produced by using 'mussel grinding. This machine is used to make reflux gas oxygen slurry. Slurry until the household = 26 200823148 media particle size. Study Xu Xiang Ju parameters, including the small machine motor RPM, Wei it, the concentration of the test body, gas oxidation source, and the use of additives. Three different methods are described below. The milling equipment used in this example is described below. 1. 1) Milling of the grinding chamber (DYNO8-Mill type KDL) using 600 ml of glass water. 2. Carbamate Methyl ester impeller. 3. The slurry storage tank is a large funnel with a volume of 2 liters. Or 4 liters of steel beakers. 4. 4 overhead electronic mixers. 5. Screw-type pump; Masterflex 75l8_60 head. Obstacle I is 〇·3 mm oxidization error; specific gravity is 6 〇 g/ml. The measurements described are as follows: 1. The surface area measured by the BET single point using the MICROMERITICSi DFLOWSORB II 2300. 2. Particle size measured using MICR®MERmCS®Sedigraph 5100 in water (5 mL water and 3 g sample). 3. Solids determined by evaporation. 4. Use the Brookfield viscometer model RVDVII+3 needle to measure the viscosity per minute at 1 turn. A. Method for producing 0.17 micron particle size and 62.6 square meters per gram surface area FLOMAG8(R) (from Martin Marietta Materials) slurry starting from 27 200823148: solids containing 4, the milling machine (4) filling with 15 GG ml of slurry to the grinder Then, during the initial cleaning, 500 ml of slurry is removed from the grinding machine at 3 rpm and the flow rate is adjusted to μ 耄 = / minute, and the slurry is discharged to the storage tank. Vertically connected to the 2 liter funnel of the mill feed line, the tank was held under the agitation of the overhead electronic stirrer, and the slurry was then returned to the human mill for a total operation time of ^ hours. During the operation, 525 ml of water was added to the product at an average of 37.5 ml per 1 7 5 minutes during the milling, which yielded a final product of S 62·6 m 2 /g surface area and a media particle size of 0.17 μm. Water was added during the process because the surface area of the FL 〇 MAG8 增 increased and the slurry became thicker. Although not limited to any particular theory, this is believed to be due to the absorption of water on the surface of the magnesium hydroxide particles and chlorine content. ι Β Process method for producing 0.103 micron particle size and milk square meters per gram surface area hydrated MAGCHEM 8l 〇-325Mg 〇 (available from Martin Marietta Materials) to produce this product, MAGQjgM8 1〇325 is used as a chlorine-free substance source. The measured chlorine content is one of many factors that increase the thickening of the slurry during milling. MAGCHEM(g)1〇_325 is hydrated at 25 stonesides/square inch for local pressure steel for 4 hours, as described in RE36,369, to Shen et al., which is incorporated by reference in its entirety. The loss on ignition (LOI) test is used to determine the degree of hydration of Mg ,. LOI greater than 30% is typically shown in the table * Mg0 has been converted to the hydroxide form. This test was carried out by using a pre-weighed weight of the hydroxide sample in a weighing hazard. The crucible containing the sample was placed in a furnace of > 85 ° C for at least 〖 hours, and 28 200823148 was hanged and its contents (Now turn fine MgQ) to dry (four) cooling, and then weigh to determine "min, its fine percentage scale report, in this mouth, water 5 product LOI is 30.86% and surface area is 5 49 square meters / gram. The 25% slurry was produced after hydration by vapor pressure to fill the 15 Torr slurry to the mill, followed by removal of 5 GG ml of slurry during the initial wash. The mill is started at 3 rpm and the purity is difficult to reach 125 ml. The slurry is discharged to the storage tank. The storage tank is directly connected to the turret, _ 2 liter funnel. Set electronic _ _ stirring, the liquid is then refluxed into the impurities, the total operation _ three hours. No water was added during or after the operation, which resulted in a final product of 49.5 square meters per gram of surface area and 介质1 〇 3 micrometers of media particle size. 92% of the product is less than 1 micron. C. Method for producing a 0.10 micron particle size and a surface area of 54.5 square meters per gram of FLOMAG (DH, 1 part per million of POLYMER VENTURES 8PC-546, with a total slurry volume of Benchmark. POLYMER VENTURES (DPC-546 is an anionic amine polymer which is then passed through a 325 mesh screen which is used to remove any particles above 44 microns that may already be present in the slurry. Mill Feeder System Filling 3500 ml of slurry to the start of the mill, followed by 500 halo slurry removal from the mill during the initial wash. The mill was started at 3 rpm and the flow rate was adjusted to 98 ml/min. The slurry is discharged to a tank which is a 4 liter stainless steel fired 29 200823148 cup that is vertically connected to the mill feed line. The tank is placed under a fixed stirrer using an overhead electronic stirrer, and the slurry is then refluxed. Milling machine, total operation time of six hours. No water was added during or after the operation, P〇LYMERVENTURES (g) PC-546 was added to offset the chloride influence of viscosity, which produced 54.5 m ^ 2 / g .92% of the product and the final product is product-0 103 micron medium particle size less than 1 micron.

This example illustrates that a media mill can produce magnesium hydroxide having a median particle size of 〇1 μm. This method can be performed using a variety of different feed sources, such as a slurry similar to FLOMAG8® or hydrated magnesium oxide. Using a slurry diluted to 30% or less, this dilution can be carried out during the milling process or prior to the milling process. Before the secret __ is advantageously accompanied by the use of an anionic polymer to produce the most complete: during the process by continuously diluting the paddle to keep the mill running, or by using additives such as polymer VENTURES (g) pc_546 ̄ = The chloride content of the starting liquid-containing material having a significant chloride content such as FL 〇 MAG8H is important. The oxidized town liquid feed of the hydrated low vapor source is effectively removed to remove chloride slip and slurry characteristics such as viscosity V '丫例3 Polymer/Mg(〇H)2 blending and flammability test Invented sub-micron Mg (〇H) 2 anti-flame energy polypropylene resin formula of different sizes of the other 2 4 = ί hydrogenated cake Jiekou ancestors - factory /, he is like mouth. Each wins 3. (d) The frf samples are listed for the surface area and (10) are listed below. , 30 200823148 Table 3 Sample name surface area, square meter / gram D50, micron MAGSHIELD® S* 13.3 4.44 MAGSHIELDOUF* 13.6 0.96 Brucite (natural) 12.6 1.67 submicron 39.6 0.223 50% UF &amp; 50% submicron 22.4 0.35 blend * Commercially available from Martin Marietta Magnesia Specialties Inc. to provide magnesium hydroxide products. It is interesting to note that MAGSHIELD8S or UF products can be used as feed materials to produce sub-micron products. As we have found, there is a significant increase in the BET surface area of sub-micron materials when magnesium hydroxide is milled to a smaller particle size. 'The above sample can be blended with polypropylene, stearic acid, and plastic stabilizer in BRABENI^ERd) rheometer (5 gram sample). The sample contains · up to 65% by weight of magnesium hydroxide, 〇·75 wt% stearic acid except one sample with additional hard coding _ as indicated below), and Q2 weight percent == agent _m (per-dosing The compound was repeated three times) and the torque was determined. The results are illustrated in Table 4 below. 31 200823148 Table 4 Samples Submicron 50% UF &amp; 50% submicron Submicron

Torque, meter-gong 340-360 340-360 320-330 320-330 280-300 240-260 submicron &amp; 3% calcium stearate MAGSHIELD®S MAGSHIELD0UF Brncite (natural)

The data shows that the submicron containing the sample produced the highest torque value, to reduce the torque of the submicron/polypropylene blend, adding additional stearic acid to the content of about 3% submicron/polypropylene hybrid weight' The subtraction of the moment and the generation of particles in the plastic 阙 阙 m scattered, so that the limb μ Bmdte sample to obtain the lowest torque value. To test the flame resistance of the magnesium hydroxide/polypropylene blend, the above samples were taken for micro-combustion calorimetry analysis, the test samples were repeated three times and the data 'test polypropylene samples were obtained to obtain various magnesium oxides. A baseline for preventing the effectiveness of resin burning. The results are related to the peak heat release and the heat release (hrc) recorded in the table below: :, there is a unit (Joules / gram 'Kelvin temperature, get the HRC value and this value from the selected fresh reduction or increase shows resistance Flame effectiveness. E2_, the number of limiting oxygen cores is generally referred to as the oxygen index, according to ASTM-Human 2: lanthanide is a kind of fire that should be used to measure the oxygen concentration of oxygen and nitrogen.样品.Sample storm 32 200823148 exposed in a candle-like position and oxygen content measured in percent oxygen (volume). Polyolefins without flame retardant have an oxygen index of about 16%, and we breathe about 21% of air. Oxygen, values above 21% oxygen showed anti-flame effect, and L〇I results were also recorded in Table 5 below. Table 5 Sample heat release LOI 100% polypropylene 1183 16 Brncite-natural 402 25 MAGSHIELD 8 S 300 28 MAGSfflELD® UF 288 28 times micron 261 29 times micron &amp; 3% stearic acid mother 250 30 50% UF &amp; 50 ° /. Submicron hand compound 254 30 If the pre- 』 斤 has magnesium hydroxide to provide flame resistance to the resin, But the submicron containing the sample provides the lowest Cong MAGSHIELDWF with 0.96 microns D50, which provides the MAGSHIELTOS of the ancient 丨w, is better than the sub-value of the resin. However, when using the HRC^ temple with G.223 micron (10), it is better to obtain the LTOUF sample. Weng Wei Xian Shao, this improvement is very likely to help the smaller sub-micron micro-seeking "more good 3 scattered ^ plus = external stearic acid to strengthen the secondary knife release because hard lunar acid _ used as a lubricant when it dazzles When it was 200823,148, it helped to better distribute submicron particles, and produced HRC values that were lower in Π units (from 261 to 250). In addition, submicron particles were added at 50% of MAGSHIELD8UF, providing more than 1% MAGSHIELD (DUF) The formulation reduces the 34 HRC units. Although these tests are carried out with polypropylene resin, similar benefits can be expected for different resin mixtures. Example 4 ♦ δ / Mg(〇H) 2 and polymer / magnesium sulphate blending and combustible The test, cone calorimeter heat release is performed on five different 10 cm diameter round dishes (32 mm thick) containing polypropylene and various magnesium hydroxide or aluminum magnesium carbonate additives. The cone calorimeter is a kind. Small tests performed in accordance with ASTM E 1354 It is intended to show the reaction of the test substance to a heat source that can cause the combustion of the test substance. In these tests, using 5 kW/m 2 of incident heat, the test sample is subjected to this radiant energy, which simulates the energy of a well developed fire. The five samples were evaluated using an ashing step involving placing the sample in a lemon broth and an organic component to determine the actual amount of filler present, leaving the metal oxide, the amount of metal hydrate being the oxide Remaining calculations. The formulation for each sample is described below: Control group: This sample is calculated to have 65% by weight (based on total sample weight) magshield®uf magnesium hydroxide and does not have any further flame resistant additives, found MAGSmELD® UF hydroxide The actual total amount of magnesium is 59.5% by weight. 34 200823148 MM2 · This sample is calculated to have 6〇% by weight of MAGSHIELD® UF magnesium hydroxide and 5% by weight of pERKALITETM Mingshi magnesium carbonate particles (Akzo Nobel). The actual total filler content was found to be 6 〇·丨% (magnesium hydroxide and aluminum magnesium carbonate combined weight). MM3 • This sample is calculated to have 63% by weight of MAGSHIELD® UF magnesium hydroxide and 2% by weight of pE跋ALITETM! The actual total filler content was found to be by weight. ΜΜ5 · This sample is calculated to have 55% by weight of MAGSHIELD® UF magnesium hydroxide and 10% by weight of the human broken rice Mg(OH)2 prepared according to the present invention, the submicron particles having on micro particle size and about 44.4 Square meter / gram surface area. The actual total filler content was found to be 64.3% by weight. ^ MM7 : This sample was calculated to have 6 % by weight of MAGSHIELD (g) UF magnesium hydroxide and 5% by weight of the same submicron Mg(〇H) 2 particles prepared according to the present invention and used for sample MM5. The actual total filler content was found to be 64.9% by weight. Because there is a general difference in MAGSHIELD_magnesium hydroxide and other anti-flame additives ^, the results must be normalized by a cone calorimeter. When the change is small (less than 15% as in this case), the normalization can be done by a simple adjustment technique, the peak heat release value multiplied by the determined amount of mineral filler, and the value = divided by the amount of mineral filler originally desired. Submicron magnesium hydroxide particles and aluminum magnesium carbonate particles significantly reduced peak heat release and binary release when compared to the control group tested in the eye cone. Shaoshi acid-reducing magnesium is more effective than Zizhengmi magnesium hydroxide. Note that the display shows the difference between 2008 and 200823 (and repeated tests) and so reliability is questionable. The Dafeng heat release (% PHR) reduction and the percentage 3 minute pHR reduction are shown in Table 6 below. Table 6 %PHR reduction 16.8

28.7 34.4 34.4 10.3 6.4 12.4 Sample MM2 MM3 MM5 MM7 provides a significant increase in flammability protection to support these substances, a standard widely used flammability test, in each sample in two thicknesses, 3 2 house meters and 10 mm, operation. The results are shown in Table 7, below, and the increased flammability protection was confirmed by the cone test performed on the submicron magnesium hydroxide and the carbonated material evaluated in the test. Table 7 *^~ Delete MM7 UL94 ~----

(3·2 mm) V1 V〇 V0 VO VO UL94 (1.6 mm) NR V1 V2 V2 V2 nr means unrated. The result of the UL94V0 is due to the nature of the test method..., the law is being compiled 'however' this will not adversely affect the flammability test in this 36 200823148 test sample performance is better than the control group. == </ RTI> </ RTI> <RTIgt; </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> <RTIgt; DETAILED DESCRIPTION OF THE INVENTION The specific names of the applications in the accompanying claims are used herein, and are intended to be · 37 200823148 [Simplified description] None

[Main component symbol description] None 38

Claims (1)

200823148 ^ X. Patent Application Range: 1. A magnesium hydroxide particle composition comprising a first distribution of magnesium hydroxide particles having a D50 of no more than about 0.30 microns and no more than about 1.5 microns D90 and a BET surface area of at least about 35 square meters per gram. 2. The magnesium hydroxide particle composition of claim 1, wherein the D50 is no more than about 0.25 microns. 3. The magnesium hydroxide particle composition of claim 2, wherein the D50 does not exceed about 0.22 microns. 4. The magnesium hydroxide particle composition of claim 1, wherein the D90 does not exceed about 1. 〇 microns. 5. The magnesium hydroxide particle composition of claim 1, wherein the BET surface area is at least about 4 square meters per gram. 6. The magnesium hydroxide particle composition of claim 5, wherein the BET surface area is at least about 5 square meters per gram. The magnesium hydroxide particle composition of claim 1, wherein the particles are coated with a surface activator. &amp;A magnesium hydroxide granule composition according to claim 7, wherein the surface activation is - or a brain or a lipid thereof. 9. The oxidized granule composition of claim 7, wherein the cerium surfactant is stearic acid or stearic acid. 10. The magnesium hydroxide particle composition of claim i, wherein the second distribution 4 of the first distribution-mixed magnesium hydroxide particles has a first distribution of D5 of at least about 9 μm. 〇 and no more than 39 200823148 about 30 square meters / gram - 3 £ surface area. a flame resistant additive composition comprising (a) a first distribution of magnesium hydroxide particles having a D5 至少 of at least about 9 microns and a surface area of no more than about 30 square meters per gram; (9) a second composition comprising a plurality of nanoclay particles; (ii) a second distribution of oxidized oxidized particles, the second distribution having a D50 of not more than about 〇3 〇 microns, not more than about 〗. 5 micron D9 〇 and a BET surface of no more than about % square meters / gram; or (d) (a combination of 〇 and (9). A as claimed in the scope of the article » 11 flame resistant additive composition, wherein the second combination The material (b) comprises the second distribution of the magnesium hydroxide particles (cut, and the D50 of the second distribution does not exceed about 0.22 μm. 13) The flame resistant additive composition of claim 11 wherein the second The composition (b) comprises the second distribution (1)) of the magnesium hydroxide particles, and the D90 of the second distribution does not exceed about 1 μm. 14. The flame-resistant additive composition of claim 11, wherein The second distribution of the composition of the S-magnesium oxide particles (丨丨And the second distribution has a BET surface area of at least about 5 square meters per gram. 15. The flame resistant additive composition of claim 11, wherein the composition (b) comprises magnesium strontium oxide particles. The second distribution (the particles distributed along the same one is coated with a surfactant. The anti-flame additive composition of claim 15 wherein the surfactant is a fatty acid or a salt thereof. A flame-resistant additive composition as claimed in claim i, wherein the surfactant is a stearic acid or stearic acid. 40 200823148 et al. a flame-adding agent composition, wherein the second composition (b) comprises the nano-soil particles (〇, and the nano-particles are obtained from a magnesium carbonate. 19·-a polymeric tree complex And a polymerizable resin composition according to claim 19, wherein the synthetic polymer is composed of a polymerizable resin composition according to claim 19. Olefin (α-olefin) polymers and copolymers, Alkene 共聚物 ) a copolymer of a hydrocarbon and a diene, an ethylene acrylate copolymer, a polystyrene and styrene copolymer, a thermoplastic polyolefin (τρ〇), a vinyl or ethylene acetate polymer or copolymer, phenoxy Base resin, polyacetal, polyamide resin, acryl and mercapto propylene based resin, butadiene, polyamino phthalate, polyester, polycarbonate, polyketone, propylene terephthalate Resin, age-type #f grease, epoxy sealant, melamine, lipid, alkyd resin, urea resin, and synthetic rubber are selected from the group consisting of 21% - molded molded polymer parts, including The polymerizable resin composition of claim 19, wherein the molded polymer member of claim 21 has a UL94 rating of VO, VI, or V2. A polymerizable resin composition comprising a synthetic polymer and a mixture of a flame resistant additive composition as in the scope of the patent application. The polymerizable resin composition of claim 23, wherein the synthetic polymer is an olefin (α-olefin) polymer and copolymer, a copolymer of an olefin and a diene, and an ethylene-acrylate copolymer. , polystyrene 41 200823148 and styrene copolymer, thermoplastic polyolefin (ΤΡΟ), vinyl chloride or vinyl decanoate polymer or copolymer, phenoxy resin, polyacetal, phthalamide resin, propylene And methacryl-based resin, butadiene, polyurethane, polyester, polycarbonate, polyketone, diallyl phthalate resin, phenolic resin, epoxy resin, melamine A group consisting of a resin, an alkyd resin, a urea resin, and a synthetic rubber is selected. A molded polymer article comprising the polymerizable resin composition of claim 23 of the patent application. 26. The molded polymeric article of claim 25, which has a UL94 rating of VO, Vb or V2. The polymerizable resin composition of claim 23, wherein the flame-resistant additive composition is present in an amount of from about 50 to about 80% by weight based on the total amount of the polymer resin composition. [28] The polymerizable resin composition of claim 27, wherein the polymerizable resin contains a first distribution of cerium oxide granules of 50% by weight based on the total amount of the polymer resin composition. 1, and about 2 to about 30 weight percent of the second composition (ii). 29. A method for producing a bismuth magnesium oxide granule composition, comprising: (a) providing an aqueous slurry of magnesium hydroxide particles or magnesium oxide particles, (b) a grinding medium in a bead mill and The aqueous slurry is milled for a period of time sufficient to produce a slurry of magnesium hydroxide particles having a diameter of no more than about 〇5 mm, the slurry of magnesium hydroxide particles having no more than about 〇3 μm One D50, no more than about 1.5 microns! ) 90 and at least about 35 square meters / gram of a ΒΕ 42 4223 2323 衣 槚 · · · 衣 衣 韵 韵 韵 韵 韵 韵 韵 韵 韵 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四The method is maintained at a method of no more than about (10) centipoise 3°. =: range item 29, wherein the barrier step is continued, and the method of the first method is about 6 hours. The method of claim 29 of the patent scope, the field is an aqueous slurry system. Maintaining a solids content of no more than about 55% by weight. The method of claim 29, wherein the viscosity of the aqueous slurry is maintained at no more than about 800 centipoise during the barrier step. The method of claim 4, wherein the step of maintaining the viscosity of the aqueous polyliquid at no more than about 1, centipoise comprises adding a viscosity modifier to the aqueous slurry before or during the milling step. The method of claim 2, wherein the barrier medium has a diameter of from about 0.1 to about 0.3 mm. The method of claim 29, wherein the grinding medium is made of zirconium oxide or hafnium. Zirconium silicate, yttrium doped tetragonal zirconium polycrystal, 36. The method of claim 29, wherein the barrier medium is a cerium oxide-based medium having a density of from about 3 Å to about 6.8 gram per cubic centimeter. The method of claim 29, wherein the bead mill RPM is maintained at no more than about 6,000 and no less than about 2,000 during the milling step.