WO2005113649A1 - 凹凸粒子およびその製造方法 - Google Patents
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- WO2005113649A1 WO2005113649A1 PCT/JP2005/009457 JP2005009457W WO2005113649A1 WO 2005113649 A1 WO2005113649 A1 WO 2005113649A1 JP 2005009457 W JP2005009457 W JP 2005009457W WO 2005113649 A1 WO2005113649 A1 WO 2005113649A1
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- C01—INORGANIC CHEMISTRY
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- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F257/00—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00
- C08F257/02—Macromolecular compounds obtained by polymerising monomers on to polymers of aromatic monomers as defined in group C08F12/00 on to polymers of styrene or alkyl-substituted styrenes
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- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
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- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
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- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
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- C08F292/00—Macromolecular compounds obtained by polymerising monomers on to inorganic materials
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
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- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/10—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to inorganic materials
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3072—Treatment with macro-molecular organic compounds
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- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/3081—Treatment with organo-silicon compounds
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- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
- C09C1/309—Combinations of treatments provided for in groups C09C1/3009 - C09C1/3081
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/40—Compounds of aluminium
- C09C1/407—Aluminium oxides or hydroxides
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to uneven particles and a method for producing the same.
- irregular particles particles having irregularities in the surface layer
- the use of such materials as organic pigments, electronic materials, toner particles, optical materials, separation materials, adhesives, adhesives, foods, cosmetics, biochemical carriers, and the like has been studied.
- Such uneven particles are generally produced by adhering core particles and fine particles serving as projections (projections) to a surface layer by an electric method or a physical method. Almost. In particular, when at least one of the core particles and the fine particles serving as the protrusions is a polymer particle, the solidified particles are fused with each other using an impact force, heat, a solvent, or the like, or each particle is embedded. In addition, studies have been made to create irregular particles (Patent Document 1: Patent No. 2762507, Patent Document 2: Patent No. 3374593).
- Patent Document 3 Japanese Patent Application Laid-Open No. 2001-342377. No. bulletin).
- Patent Document 3 is a relatively useful technique when the particles to be coated have a small diameter.
- Patent Document 1 Japanese Patent No. 2762507
- Patent Document 2 Japanese Patent No. 3374593
- Patent Document 3 Japanese Patent Application Laid-Open No. 2001-342377
- the present invention has been made in view of such circumstances, and since the core particles and the convex particles are firmly bonded, even when the particle diameter of the convex particles is increased, the convex particles may be formed.
- An object of the present invention is to provide uneven particles capable of preventing particles from easily peeling off the core particles, and a method for producing the same.
- the inventors of the present invention have conducted intensive studies to achieve the above object, and as a result, a polymer (A) in which a polymer compound containing a first functional group is also grafted with a surface force, and the first functional group
- a polymer (A) in which a polymer compound containing a first functional group is also grafted with a surface force, and the first functional group In the uneven particles formed by bonding a polymer compound having a second functional group capable of reacting with a group and a particle (B) onto which a surface force is also grafted with a first and second functional group by a dangling bond, The present inventors found that the bond between the particles (A) and the particles (B) was strengthened, and the particles (B) were hardly peeled off.
- the present invention provides
- the particles (A) are spherical or substantially spherical particles, wherein the irregular particles are 1 or 2;
- At least one of the particles (A) and the particles (B) is an organic polymer particle
- the combination of the first and second functional groups is a combination of at least one group selected from the group consisting of a hydroxyl group, a carboxyl group, an amino group, and a mercapto group, and a carbodiimide group. Characterized by the uneven particles of any of 1 to 4,
- particles (A) in which a polymer compound having a first functional group is also grafted with a surface force, and a polymer compound having a second functional group capable of reacting with the first functional group is grafted with a surface force
- the particles (B) are mixed with each of the particles (A) and (B) in the presence of at least one solvent in which each polymer compound on the surface is dissolved, and the first functional group and the second functional group are mixed.
- the bond between the particles (A) and the particles (B) is strengthened, and the particles (B) are hardly peeled off.
- the mechanical strength of the projections can be maintained. Therefore, it is possible to increase the particle diameter of the particles (B) constituting the convex portions to increase the specific surface area peculiar to the irregular particles, and to have excellent effects such as adhesion, adhesion, tackiness, and dispersibility. Functional particles can be provided.
- the uneven particles of the present invention which are excellent in the adhesive strength of the projections, include an electrostatic charge developer, an LCD spacer, a surface modifier for a silver salt film, a film modifier for a magnetic tape, and thermal paper running stability.
- Chemicals such as inks, adhesives, adhesives, light diffusing agents, paints, paper coatings, paper coatings such as information recording paper, fragrances, and low shrinkage agents.
- FIG. 1 is a view showing an SEM photograph of the uneven particles obtained in Example 1.
- one memory of the scale represents 0.
- the concavo-convex particles according to the present invention include particles (A) in which a polymer compound having a first functional group (hereinafter, referred to as a first functional group-containing polymer compound) is also grafted with a surface force,
- the particles (B), to which a polymer compound having a second functional group capable of reacting with a functional group (hereinafter referred to as a second functional group-containing polymer compound) is grafted with a surface force, are combined with the first and second functional groups. And is characterized by being bonded by a chemical bond.
- particles is a concept including a form dispersed in a medium such as emulsion.
- cured particles or semi-cured particles may be used.
- the convex portions are caused by the particles.
- This convex portion may be formed of a single particle (B) (—next particle) or may be formed by aggregation of a plurality of particles (B).
- B single particle
- B may be formed by aggregation of a plurality of particles (B).
- the number of protrusions where the force of the particle (B) is also formed is not particularly limited as long as at least about 3 are present on the surface of the particle (A)!
- the surface area of the particle (A) and the particle Since a suitable value changes depending on the average particle diameter and the like of B), it is preferable to adjust the number to an appropriate number in consideration of the use of the concave-convex particles, the interval between the convex portions, and the like.
- the spacing between the protrusions is arbitrary and may be uniform or random.
- the spacing may be the particle diameter of particles (A) and particles (B), the type of functional group, the content of functional group, the particle (A) and It can be changed by changing various conditions such as the use ratio of the particles (B) and the reaction temperature.
- the shape of the particles (A) and the particles (B) can be any particle shape without any particular limitation. However, in recent years, more accurate uneven particles have been desired. Therefore, at least the particles (A) are preferably spherical or substantially spherical particles.
- the chemical bond is not particularly limited as long as it is a chemical bond such as a covalent bond, a coordination bond, an ionic bond, and a metal bond. To make it stronger, it is preferable that the bond be a covalent bond.
- the method of forming the chemical bond is optional, and in particular, a method in which the first functional group-containing polymer compound and the second functional group-containing polymer compound are formed in a medium in which each is dissolved. Is preferred! / ,.
- the functional groups in the high molecular compound are reacted more than when reacting each functional group without dissolving them. Is maximized, that is, as the number of reaction sites increases, the bonding area increases, so that the bonding between particles (A) and particles (B) can be further strengthened.
- the materials constituting the particles (A) and the particles (B) are not particularly limited. Both materials may be either organic materials or inorganic materials (including metal materials). Although it is preferable, depending on the application, it is preferable that the specific gravity is not high, and in some cases, elasticity is required.Therefore, it is preferable that at least one of the particles (A) and the particles (B) is an organic material. In particular, organic polymer particles are preferable, and the particles (A) are most preferably organic polymer particles. In this case, the structure of the particles (A) and the particles (B) may be both a single-layer structure or a multilayer structure in which the surfaces of the particles (A) and the particles (B) are covered with a coating component.
- organic material examples include crosslinked and non-crosslinked resin particles, organic pigments, waxes, and the like.
- crosslinked and non-crosslinked resin particles examples include styrene resin particles, acrylic resin particles, methacrylic resin particles, polyethylene resin particles, polypropylene resin particles, silicone resin particles, Polyester resin particles, polyurethane resin particles, polyamide resin particles, epoxy resin particles, polyvinyl butyral resin particles, rosin resin particles, terpene resin particles, phenol resin particles. And melamine resin particles, guanamine resin particles and the like.
- Organic pigments include azo-based, polycondensed azo-based, metal complex azo-based, benzimidazolone-based, phthalocyanine-based (blue, green), thioindigo-based, anthraquinone-based, flavanthrone-based, and indanthrene.
- Organic pigments such as organic pigments, anthrapyridine type, pyranthrone type, isoindolinone type, perylene type, perinone type and quinacridone type.
- waxes examples include plant natural waxes such as candy lila wax, carnauba wax, and rice wax; animal natural waxes such as beeswax and lanolin; mineral natural waxes such as montana tuscu and ozokerite; paraffin wax; Natural petroleum waxes such as microcrystalline wax and petrolatum, polyethylene waxes, synthetic hydrocarbon waxes such as fischer's Tropx, modified waxes such as montan wax derivatives and paraffin wax derivatives, hydrogenated waxes such as hardened castor oil derivatives, Synthetic wax, etc.
- plant natural waxes such as candy lila wax, carnauba wax, and rice wax
- animal natural waxes such as beeswax and lanolin
- mineral natural waxes such as montana tuscu and ozokerite
- paraffin wax Natural petroleum waxes such as microcrystalline wax and petrolatum, polyethylene waxes, synthetic hydrocarbon waxes such as fischer's Tropx, modified wax
- These resin particles can be used alone or in combination of two or more.
- the core particles of the particles (A) and the particles (B) are the same as the particles of the polymer compound.
- the average molecular weight is not particularly limited, but usually, the weight average molecular weight
- the weight average molecular weight is a value measured by gel filtration chromatography.
- the inorganic material examples include alumina, titanium oxide, barium titanate, magnesium titanate, calcium titanate, strontium titanate, zinc oxide, clay sand, clay, mica, limestone, diatomaceous earth, and acid. Chromium, cerium oxide, iron oxide, antimony trioxide, magnesium oxide, zirconium oxide, aluminum oxide, magnesium hydroxide, aluminum hydroxide, barium sulfate, barium carbonate, calcium carbonate, silica, silicon carbide, nitride Silicon, boron carbide, tungsten carbide, titanium carbide, carbon black, gold, platinum, palladium, silver, ruthenium, rhodium, osmium, iridium, iron, nickel, conorto, copper, zinc, lead, aluminum, titanium, vanadium, chromium , Manganese, zirconium, molybdenum , Indium, antimony, and metal such as tungsten, alloys thereof, metal oxides, hydrated metal oxides, inorganic pigment
- organic material and the inorganic material can be used alone or in combination of two or more.
- organic material and the inorganic material commercially available products may be used as they are, and those obtained by modifying these commercially available products with a surface treatment agent such as a coupling agent in advance may be used.
- Examples of the surface treating agent include unsaturated fatty acids such as oleic acid, metal salts of unsaturated fatty acids such as sodium oleate, calcium oleate and potassium oleate, fatty acid esters, fatty acid esters, and surfactants.
- Methacryloxymethyltrimethoxysilane methacryloxypropyltrimethoxysilane, n-octadecylmethyljetoxysilane, dodecyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- ( 4—Chlorosulfonyl) ethyltrimethoxysilane, triethoxysilane, vinyltrimethoxysilane, silane coupling agents such as alkoxysilanes such as phenethyltrimethoxysilane, titanate coupling agents, aluminum coupling agents and the like. Power is limited to these Not.
- Preferable combinations of the particles (A) and the particles (B) include, for example, the following.
- Styrene resin particles acrylic resin particles, methacrylic resin particles, etc.
- Anoremina silica, titanium oxide, zinc oxide, magnesium hydroxide, aluminum hydroxide, etc.
- Each functional group in the first functional group-containing polymer compound and the second functional group-containing organic compound is not particularly limited, and is a combination capable of chemically bonding between both functional groups. Can be arbitrarily selected.
- Specific functional groups include, for example, butyl group, aziridine group, oxazoline group, epoxy group, thioepoxy group, amide group, isocyanate group, carbodiimide group, acetoacetyl group, carboxyl group, carbonyl group, hydroxyl group, amino group, aldehyde Group, mercapto group, and sulfone group.
- At least one of the first functional group and the second functional group is an active hydrogen group (an amino group, a hydroxyl group, a carboxyl group, a mercapto group, or the like) which is highly reactive and easily obtains a strong bond, a carbodiimide group, Epoxy group and oxazoline group strength At least one kind of functional group selected is preferred, and especially a carpoimide group is preferred!
- Active hydrogen groups are preferably used because they are abundant in organic compounds containing them and can easily impart a large number of functional groups by radical polymerization or the like. Can be.
- Each of the above functional groups can be used alone or in combination of two or more.
- the combination of the first and second functional groups is a combination of at least one group selected from the group consisting of a hydroxyl group, a carboxyl group, an amino group and a mercapto group, and a carbodiimide group, By doing so, the adhesive strength between the particles (A) and the particles (B) can be further increased.
- the first and second functional group-containing high molecular compounds usable in the present invention and those which can be each of these high molecular compounds include, for example, the following compounds.
- butyl group-containing conjugate that can be a polymer compound
- examples of the butyl group-containing conjugate that can be a polymer compound include (i) styrene, 0 — Methylstyrene, m-methylstyrene, p-methylstyrene, a-methylstyrene, p-ethylstyrene, 2,4-dimethylstyrene, p-n-butylstyrene, p-tert-butylinolestyrene, p-n-xylstyrene, p-n- Styrenes such as octylstyrene, pn-nonylstyrene, pn-decylstyrene, pn-dodecylstyrene, ⁇ -methoxystyrene, ⁇ phenylstyrene, p
- aziridine group-containing compound examples include (co) polymers such as atariloylaziridine, methacryloylaziridine, 2-aziridyl-ruethyl acrylate, 2-aziridyl-ruethyl methacrylate, and the like. These can be used alone or in combination of two or more.
- the oxazoline group-containing conjugate used in the present invention is not particularly limited, but a compound having three or more oxazoline rings is preferably used.
- an unsaturated double bond-containing monomer having an oxazoline group such as 2-butyl 2-oxazoline, 2-butyl 4-methyl-2-oxazoline, 2-butyl 5-methyl-2-oxazoline, etc.
- (Co) polymers can be mentioned.
- Commercial products can also be used as the oxazoline group-containing polymer compound. For example, WS-500, WS-700, K-1010E, K-2010E, K-1020E, ⁇ -2020 ⁇ , K- 1030E, ⁇ 2030E, RPS—1005 equivalent strength ⁇ Also mentions 0 ° deviation.
- a water-soluble or hydrophilic compound as the oxazoline group-containing polymer compound.
- a water-soluble or hydrophilic compound include water-soluble oxazoline group-containing conjugates such as WS-500 and WS-700 in the above Epocros series.
- the epoxy group-containing conjugate used in the present invention is not particularly limited, and a compound having two or more force epoxy groups is preferable.
- Specific examples include glycidyl (meth) acrylate, (j8-methyl) glycidyl (meth) acrylate, 3, 4-epoxycyclohexyl (meth) acrylate, aryl glycidyl ether, and 3, 4 epoxy bulcyclo.
- epoxy group-containing compound commercially available products can also be used.
- "Denacol EX-611", “612, -614, -614B, -622, -512,-” of the "Denacol” series 521, -411, -421, -313, -314, -321, -201, -211, -212, -252, -810, -811, -850, -851, -821, -830, -832, -841, -861, -911, -941, -920, -931, -721, -111, -212le -214le -216le -321L, one 850L, one 1310, one 1410, one 1610, one 610U O ⁇ deviation is also available from Nagase Chemtech Co., Ltd.).
- a water-soluble or hydrophilic compound is used as the epoxy group-containing compound.
- the epoxy group-containing conjugates include (poly) alkylene glycol diglycidyl ethers such as (poly) ethylene glycol diglycidyl ether and (poly) propylene glycol diglycidyl ether, and glycerol polyglycidyl ether.
- water-soluble epoxy group-containing compounds such as (poly) glycerol polyglycidyl ethers such as diglycerol polyglycidyl ether and sorbitol polyglycidyl ether.
- (poly) glycerol polyglycidyl ethers such as diglycerol polyglycidyl ether and sorbitol polyglycidyl ether.
- amide group-containing conjugate examples include (meth) acrylamide, ⁇ -ethyl (meth) atarylamide, ⁇ ⁇ ⁇ methyl (meth) acrylamide, ⁇ butoxymethyl (meth) acrylamide, diacetone (meth) acrylamide, and , ⁇ ⁇ ⁇ ⁇ dimethyl (meth) acrylamide, ⁇ , ⁇ dimethyl (meth) acrylamide, ⁇ , ⁇ dimethyl- ⁇ -styrenesulfonamide, ⁇ , ⁇ ⁇ ⁇ ⁇ dimethylaminoethyl (meth) acrylate, Rate, ⁇ , ⁇ Dimethylaminopropyl (meth) acrylate, ⁇ , ⁇ Jetylaminopropyl (meth) acrylate, ⁇ — [2- (Meth) atalyloyloxetyl] pyridin, ⁇ — [2- (meth) a acryloyloxyethylene] pyrrolidine, ⁇ —
- Examples of the isocyanate group-containing conjugate used in the present invention include 4,4′-dicyclohexylmethane diisocyanate, m-tetramethylxylylene diisocyanate, 2,4 tolylene diisocyanate, and 2,6 tolylene diisocyanate.
- the polymer compound having a carbodiimide group used in the present invention is not particularly limited, and examples thereof include a compound represented by the following formula.
- a x and A y independently represent the same or different segments, R 2 independently represents a divalent or higher valent organic group, X represents a carbodiimide group, and n represents an integer of 2 or more.
- divalent or higher valent organic group examples include a hydrocarbon group, an organic group containing a nitrogen atom or an oxygen atom, and the like, and preferably a divalent hydrocarbon group.
- divalent hydrocarbon group for example, a linear, branched, or cyclic C to C alkylene group,
- the carbodiimide conjugate represented by the above formula (I) can be produced in the presence of a catalyst that promotes the carbodiimidization of the isocyanate group of the organic polyisocyanate conjugate.
- a catalyst that promotes the carbodiimidization of the isocyanate group of the organic polyisocyanate conjugate Specifically, for example, the method disclosed in JP-A-51-61599, the method of LM Alberino et al. (J. Appl. Polym. Sci., 21, 190 (1990)), — It can be produced by the method disclosed in JP-A-292316.
- Examples of the organic polyisocyanate conjugate as a raw material include those similar to those exemplified in the above isocyanate group-containing polymer compound (7).
- the carpoimidization reaction is carried out by heating the isocyanate compound in the presence of a carpoimidization catalyst. At this time, a compound having a functional group having a reactivity with an isocyanate group is added as an end capping agent at an appropriate stage, and the end of the carbodiimide conjugate is sealed (segmented), thereby reducing the molecular weight (degree of polymerization). Can be adjusted. The degree of polymerization can also be adjusted by the concentration of the polyisocyanate conjugate and the reaction time. Depending on the application, it is possible to leave the isocyanate group Good.
- terminal blocking agent examples include compounds having a hydroxyl group, a primary or secondary amino group, a carboxyl group, a thiol group, and an isocyanate group.
- the molecular weight (degree of polymerization) can be adjusted by sealing (segmenting) the terminal of the carbodiimide compound.
- the carbodiimide compound has a water-soluble or hydrophilic segment. However, those are preferred.
- a x, A y water-soluble or hydrophilic segment as has a hydrophilic group, it is limited in particular as long carbonitrile Jiimidi ⁇ was water I a spoon can segments.
- Specific examples thereof include the residue of an alkyl sulfonate having at least one reactive hydroxyl group such as sodium hydroxyethanesulfonate and sodium hydroxypropanesulfonate; 2 dimethylaminoethanol; 2 dimethylaminoethanol; Dimethylamino 1 propanol, 3 getylamino-1 propanol, 3 getylamino-2 propanol, 5 getylamino-2 propanol, quaternary salts of dialkylamino alcohol residues such as 2- (di-n-butylamino) ethanol, 3-dimethylamino n-propylamine, 3 — Quaternary salts of dialkylaminoalkylamine residues such as n-propylamine, 2 (ethylamino)
- acetoacetyl group-containing conjugate examples include, for example, arylacetoacetate, buracetoacetate, 2-acetoacetoxityl acrylate, 2-acetoacetoxitytyl methacrylate, 2-acetoacetoxoxypropyl atariate And (co) polymers such as 2-acetoacetoxypropynolemetharate. These may be used alone or in combination of two or more. Can be used in combination.
- carboxyl group-containing conjugate examples include, but are not particularly limited to, various types such as atalylic acid, methacrylic acid, crotonic acid, itaconic acid, maleic acid, fumaric acid, monobutyl itaconate, and monobutyl maleate.
- (Co) polymers such as saturated mono- or dicarboxylic acids or unsaturated dibasic acids. These can be used alone or in combination of two or more.
- Examples of the carbonyl group-containing compound include ketones such as acetone, methyl ethyl ketone, and acetophenone, and esters such as ethyl acetate, butyl acetate, methyl propionate, ethyl acrylate, and butyrolataton. . These can be used alone or in combination of two or more.
- hydroxyl group-containing compound for example, a compound obtained by (co) polymerizing a hydroxyl group-containing (meth) acrylic monomer such as 2-hydroxyethyl (meth) acrylate or 2-hydroxybutyl (meth) acrylate
- a hydroxyl group-containing (meth) acrylic monomer such as 2-hydroxyethyl (meth) acrylate or 2-hydroxybutyl (meth) acrylate
- Polyalkylene glycol (meth) acrylic compounds such as polyethylene glycol mono (meth) acrylate and polypropylene glycol mono (meth) acrylate
- compounds obtained by (co) polymerizing these, hydroxyethyl vinyl ether examples thereof include hydroxyalkyl vinyl ether compounds such as hydroxybutyl vinyl ether, hydroxyl group-containing aryl compounds such as aryl alcohol and 2-hydroxyethyl aryl ether, and compounds obtained by (co) polymerizing these. These can be used alone or in combination of two or more.
- hydroxyl group-containing compound examples include, for example, fully saponified or partially saponified resin such as polyvinyl alcohol (PVA), saponification of a copolymer of vinyl acetate and other vinyl monomers, and saponification of an acetate-containing polymer. It is better to use a hydroxyl group-containing polymer such as fat.
- PVA polyvinyl alcohol
- amino group-containing compound examples include aminoethyl acrylate, acrylate-N-propylaminoethyl methacrylate, N-ethylaminopropyl methacrylate, N-phenylaminoethyl methacrylate, and N-cyclohexylaminoethyl methacrylate.
- aldehyde group-containing compound examples include a polymer of (meth) acrolein.
- Examples of the mercapto group-containing compound include 2-mercaptoethyl (meth) acrylate, 2-mercapto-1-carboxyethyl (meth) acrylate, N- (2-mercaptoethyl) acrylamide, N— (2-mercapto-1-carboxyethyl) acrylamide, N— (2-mercaptoethyl) methacrylamide, N- (4 mercaptophenyl) acrylamide, N— (7-mercaptonaphthyl) acrylamide, mono-maleic acid 2 — (Co) polymers such as mercaptoethylamide and polymer compounds containing a mercapto group such as modified polyvinyl alcohol having a mercapto group. These can be used alone or in combination of two or more.
- sulfone group-containing compound examples include, for example, alkene sulfonic acids such as ethylene sulfonic acid, vinyl sulfonic acid, and (meth) aryl sulfonic acid, aromatic sulfonic acids such as styrene sulfonic acid and a-methyl styrene sulfonic acid, and Cl-10 alkyl (meth ) Sulfo C2-6 alkyl (meth) atalylates such as arylsulfosuccinates, sulfopropyl (meth) acrylates, methyl vinyl sulfonates, 2-hydroxy-13- (meth) atalyloxypropyl sulfonates, 2- (Meth) atalyloylamino—2,2 dimethylethanesulfonic acid, 3— (Meth) Atariloyloxyethanesulfonic acid, 3 (meth) atarilooxy 2-hydroxyprop
- the first and second functional group-containing polymer compounds include copolymers obtained by copolymerizing a functional group-containing polymerizable monomer that is a raw material of each of the above-described functional group-containing polymer compounds and another polymerizable monomer. It can also be used as polymerization.
- Examples of the polymerizable monomer that can be copolymerized include (i) styrene, 0-methylstyrene, m-methynolestyrene, p-methylstyrene, ex-methynolestyrene, p-ethynolestyrene, 2,4-dimethylstyrene, and p-methylstyrene.
- Suitable as the first and second functional group-containing polymer compounds include, for example, styrene resin, acrylic resin, methacrylic resin, polyethylene resin, polypropylene resin, Silicone resin, polyester resin, polyurethane resin, polyamide resin, epoxy resin, polybutyral resin, rosin resin, terpene resin, phenol resin, melamine resin
- styrene resin acrylic resin, methacrylic resin, polyethylene resin, polypropylene resin, Silicone resin, polyester resin, polyurethane resin, polyamide resin, epoxy resin, polybutyral resin, rosin resin, terpene resin, phenol resin, melamine resin
- resin include resin, guanamine-based resin, oxazoline-based resin, and carbodiimide-based resin, and these can be used alone or in combination of two or more.
- the method for grafting the first and second functional group-containing polymer compounds from the surface of the core particles of the particles (A) and the particles (B) is not particularly limited, and various known methods can be used. Can be adopted.
- the surface of the organic core particles prepared in advance can be further covered with a functional group-containing polymer compound to obtain organic particles having the functional group-containing polymer compound on the surface.
- the organic core particles fine particles of the above-mentioned various synthetic resins, fine particles of a natural polymer, and the like can be used as long as they are insoluble in the reaction medium used for grafting.
- the organic core particles may be treated with the surface treatment agent described above.
- the surface of the inorganic particles or the inorganic particles treated with the surface treating agent may be covered with a functional group-containing polymer compound to form an organic organic composite particle having the functional group-containing polymer compound. ⁇ .
- Techniques for grafting the functional group-containing polymer compound from the surfaces of the organic core particles and the inorganic particles are not particularly limited, and examples thereof include a spray dryer method, a seed polymerization method, and a method for grafting the functional group-containing polymer compound.
- Examples of the method include an adsorption method to a core particle, and a graft polymerization method in which a functional group-containing polymer compound and a core particle are bonded in a dangling manner.
- the reaction conditions for grafting cannot be specified unconditionally because they differ depending on the type of reaction, the type of raw materials used, the type of functional group to be introduced, the type of functional group-containing polymer compound, the particle concentration, and the specific gravity of the particles.
- the reaction temperature is 10 to 200 ° C., preferably 30 to 1
- the temperature is in the range of 30 ° C, more preferably 40 to 90 ° C.
- the grafting reaction is preferably performed in the presence of a solvent.
- a solvent By performing grafting in the presence of a solvent, functional groups can be uniformly formed on the surface of the core particles (organic particles and inorganic particles) used as a raw material and on the surface without impairing physical properties by applying excessive impact force to the particles obtained by the reaction.
- the particles (A) and particles (B) can be obtained in a monodispersed state as much as possible.
- an appropriate solvent may be selected from general solvents that are not particularly limited, depending on the used raw materials and the like.
- Usable reaction solvents include, for example, water, methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, isobutyl alcohol, tert-butyl alcohol, 1 pentanol, 2 pentanol, 3 Pentanol, 2-methyl-1-butanol, isopentynoleanolone, tert-pentinoleanolone, 1-hexanolone, 2-methynole-1-pentanol, 4-methyl-2-pentanol, 2-ethylbutanol, 11 Alcohols such as heptanol, 2-heptanol, 3-heptanol, 2-octanol, 2-ethyl-11-hexanol, benzyl alcohol, cyclohexanol; methyl
- Examples of the grafting technique include various techniques as described above. Among them, (1) a polymer layer which is relatively thick and hardly dissolves even when dispersed in a solvent for a long time. It can be formed. (2) By changing the type of monomer, various functional groups can be provided and surface properties can be provided. (3) Polymerization based on the polymerization initiation group introduced on the particle surface If combined, graft polymerization can be performed at a high density, and it is preferable to use graft polymerization.
- a method in which a graft chain is prepared in advance by graft polymerization and then chemically bonded to the particle surface or a method in which graft polymerization is performed on the particle surface, may be used. In the present invention, either may be used. However, in consideration of increasing the density of the graft chains on the particle surface, it is preferable to use the latter method which is less susceptible to steric hindrance and the like.
- the chemical bond between the organic core particles and the inorganic particles and the graft chain includes a covalent bond, a hydrogen bond, a coordination bond, and the like.
- the graft polymerization reaction includes addition polymerization such as radical polymerization, ionic polymerization, ion oxidation polymerization, and ring-opening polymerization, polycondensation such as desorption polymerization, dehydrogenation polymerization, and denitrification polymerization, polyaddition, and polymerization.
- addition polymerization such as radical polymerization, ionic polymerization, ion oxidation polymerization, and ring-opening polymerization
- polycondensation such as desorption polymerization, dehydrogenation polymerization, and denitrification polymerization, polyaddition, and polymerization.
- hydrogen transfer polymerization such as addition, isomerization polymerization, and transfer polymerization, and addition condensation.
- radical polymerization is preferred.
- the molecular weight and molecular weight distribution of the graft chain or the graft density are controlled, and in some cases, living radical polymerization is used.
- the covalent bond of the dormant species P—X is reversibly cleaved by heat, light, or the like, dissociated into P radicals and X radicals, and the polymerization proceeds.
- Dissociation bond mechanism (ii) atom transfer mechanism (ATRP), in which PX is activated by the action of a transition metal complex to promote polymerization, and (iii) PX undergoes exchange reaction with other radicals to initiate polymerization.
- ARP atom transfer mechanism
- PX is activated by the action of a transition metal complex to promote polymerization
- PX undergoes exchange reaction with other radicals to initiate polymerization.
- the conditions for the graft polymerization are not particularly limited, and various known conditions may be used depending on the monomers used and the like.
- 0.1 mol of a reactive functional group (or originally existing) introduced on the particles is compared with 0.1 mol.
- the amount of the monomer capable of reacting is 1 to 300 mol, and the amount of the polymerization initiator to be used is usually 0.05 to 30 mol.
- the polymerization temperature is usually from 20 to: LOOO ° C, and the polymerization time is usually from 0.2 to 72 hours.
- particles (A) and particles (B) are produced by graft-polymerizing a functional group-containing monomer from the surfaces of the organic core particles and the inorganic particles, an appropriate amount of a crosslinking agent is used depending on the intended use. You can use it without any problem.
- aromatic dibutyl compounds such as dibutylbenzene and divinylnaphthalene
- ethylene glycol diatalylate ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, and tetraethylene glycol dimethacrylate.
- 1,3 butylene glycol dimetharate trimethylolpropane triatalylate, trimethylolpropane trimetharate, 1,4 butanediol diatalylate, neopentyl glycol diatalylate, 1,6 hexanediol diatalylate Rate, pentaerythritol triatalylate, pentaerythritol tetraatalylate, pentaerythritol dimethatalylate, pentaerythritol tetrametharate, glycerol acroxy di Tatarireto, N, N-Jibyurua - phosphorus, di Bulle ether, divinyl - Rusurufuido, compounds such as divinyl sulfone, for example. These can be used alone or in combination of two or more.
- the polymerization initiator used in the radical polymerization is not particularly limited, and may be appropriately selected from known radical polymerization initiators. Specific examples include benzoyl peroxide, cumenehydride peroxide, t-butylhydride peroxide, sodium persulfate, ammonium persulfate and the like, azobisisobutymouth-tolyl, azobismethylbutymouth- And azo compounds such as tolyl and azobisisovalero-tolyl. These can be used alone or in combination of two or more.
- the polymerization solvent may be appropriately selected from the various solvents described above according to the target particles, the raw material monomers to be used, and the like.
- particles (A) and particles (B) are produced by a polymerization reaction
- known (polymer) dispersants and stabilizers used in general polymer synthesis are used depending on the polymerization method used.
- An emulsifier, a surfactant, a catalyst (reaction accelerator) and the like can be appropriately compounded.
- the polymer layer formed by the graft polymerization is not only formed by performing the graft polymerization on the surface of the organic core particles or the inorganic particles. It can also be formed by reacting with a reactive functional group on the particle surface.
- the mixing ratio of the functional group-containing polymer compound and the core particles is not particularly limited, but, for example, the amount of the functional group-containing polymer compound added to the reactive functional groups of the core particles. If the equivalent ratio is about 0.3 to 30, the equivalent ratio is preferably 0.8 to 20, and the equivalent ratio is more preferably 1 to 10.
- the reaction method between the core particles and the functional group-containing polymer compound includes, for example, a dehydration reaction, a nucleophilic substitution reaction, an electrophilic substitution reaction, an electrophilic addition reaction, and an adsorption reaction.
- the average particle diameter of the particles (B) is not particularly limited as long as it is smaller than the average particle diameter of the particles (A). ) Is preferably 1 Z2 or less, more preferably 1Z5 or less, further preferably 1Z8 or less.
- the upper limit is preferably about 100 ⁇ m.
- the upper limit of the average particle diameter is preferably 100 ⁇ m or less, preferably 20 ⁇ m or less, and more preferably about 5 ⁇ m or less.
- the lower limit is 0.003 ⁇ m or more, preferably 0.08 ⁇ m or more, and more preferably 0.2 ⁇ m or more.
- the average particle diameter is less than 0.003 ⁇ m, surface treatment of the particles (B) may be difficult.
- the average particle diameter is more than 100 / zm, the protrusions may be added to the particles (A). Although it is possible In addition, the load area becomes too large, and depending on the intended use, adverse effects such as peeling of the particles (B) (projections) may occur.
- the average particle diameter of the particles (A) varies depending on the average particle diameter of the particles (B), and cannot be unconditionally specified. However, the average particle diameter is preferably about 0.1 to about LOOO m. If the average particle size is outside the above range, the characteristics of the uneven particles may not be produced.
- the average particle diameter of the particles (A) is more preferably 0.3 to 200 m, still more preferably 0.8 to 50 m, and most preferably 1.0 to 20 ⁇ .
- a polymer compound containing a first functional group (hereinafter, referred to as a first functional group-containing polymer compound) and a polymer compound containing a second functional group (hereinafter, a second functional group-containing polymer compound)
- the number average molecular weight is preferably 500 to 500,000, more preferably 1,000 to 100,000. If the number average molecular weight is more than 500,000, the viscosity in the medium becomes too high, which may adversely affect the monodispersed particles. On the other hand, when the number average molecular weight is less than 500, it is possible to add a convex portion, but peeling may occur due to weak adhesive strength.
- the number average molecular weight is a value measured by gel filtration chromatography (GPC).
- the number of functional groups per molecule of the first and second functional group-containing polymer compound may be an average of 2 or more, but the adhesive strength of the particles ( ⁇ ⁇ ⁇ ) and the particles ( ⁇ ) is more improved.
- the average number of functional groups is preferably 3 or more, more preferably 4 or more, and still more preferably 5 or more.
- the functional group equivalent is 80 to: L, 500, more preferably 100 to 1,000, and even more preferably 130 to 800.
- Equivalent refers to a constant amount assigned to each compound based on the quantitative relationship of the substances in the chemical reaction. For example, in the present invention, per molecule (for a polymer, (Average) represents the amount of the chemical formula per 1 mol of the reactive functional group.
- the method for producing uneven particles according to the present invention is characterized in that the above-mentioned first functional group-containing polymer compound is also grafted on the particles (A) having a surface force, and the second functional group-containing polymer that can react with the first functional group.
- the method is not particularly limited as long as it is a method by which the compound (B) with which the compound is surface-grafted can be converted into irregular particles by chemical bonding of the first functional group and the second functional group.
- a method of mixing the high molecular compounds of the respective particles (A) and (B) in the presence of at least one solvent in which the first functional group and the second functional group are reacted can be adopted. .
- the functional groups in the polymer compound can be used to the maximum extent, that is, the number of reaction points increases, and as a result, the bonding area increases. Not only can the bond with (B) be further strengthened, but also the contact area between the polymer compounds increases, so that the adhesive force unique to the polymer compound is exerted and a stronger bond is formed. .
- the reaction solvent is appropriately selected from the above reaction solvents in consideration of the materials constituting the particles (A) and the particles (B), the types of the first and second functional group-containing polymer compounds, and the like.
- the reaction solvent lOOg in the case of a mixed solvent, lOOg of the whole mixed solvent
- suitable solvents include water; alcohols such as methanol, ethanol, and 2-propanol; ether alcohols such as methylcellosolve, etinoreserosonoleb, isopropylcellosolve, butinoresosolve, and diethylene glycol monobutyl ether; A Examples include water-soluble organic solvents such as setone, tetrahydrofuran, acetonitrile, dimethylformamide and the like, and mixed solvents thereof.
- the reaction temperature is 10 to 200 ° C.
- the reaction time is usually about 2 to 48 hours, preferably about 8 to 24 hours. Even if the reaction time is set to be longer than 48 hours, irregular particles can be obtained, but it is not advisable to carry out the reaction under conditions that require a long time in view of the production efficiency.
- the solution concentration at the time of binding reaction if calculated by the following calculation formula, 1 to 60 wt%, the good Mashiku 5 to 40 mass 0/0, more preferably 10 to 30 mass 0/0 is there.
- Solution concentration (% by mass) [ ⁇ Particle (A) mass + Particle (B) mass> Z total solution mass] X 100
- the solution concentration exceeds 60% by mass, particles (A) or particles (B ) Is excessive, the balance in the solution may be lost, and it may be difficult to obtain monodispersed uneven particles.
- the above solution concentration is less than 1% by mass, irregular particles can be obtained, but it is not advisable to increase the possibility of lowering productivity such as the necessity of performing the reaction for a long time. .
- a known dispersant, antioxidant, stabilizer, emulsifier, catalyst, and the like may be appropriately added to the reaction system in an amount of 0.0001 to 50% by mass in the reaction solution. it can.
- polystyrene polystyrenesulfonic acid, bulphenol- (meth) acrylate copolymer, styrene- (meth) acrylate copolymer, styrene Polystyrene derivatives such as bulfenol- (meth) acrylate copolymer; poly (meth) acrylic acid, poly (meth) acrylamide, polyacrylonitrile, polyethyl (meth) acrylate, and polybutyl (meth) acrylate (Meth) acrylic acid derivatives; polyvinyl alkyl ether derivatives such as polymethyl vinyl ether, polyethyl vinyl ether, polybutyl vinyl ether, and polyisobutyl vinyl ether; senorellose, methinoresenorelose, senorellose acetate, senorelose nitrate, hydro Caulking Chin
- emulsifier examples include alkyl sulfate esters such as sodium lauryl sulfate, alkyl benzene sulfonates such as sodium dodecylbenzene sulfonate, alkyl naphthalene sulfonates, fatty acid salts, and alkyl phosphates.
- alkyl sulfate esters such as sodium lauryl sulfate
- alkyl benzene sulfonates such as sodium dodecylbenzene sulfonate, alkyl naphthalene sulfonates, fatty acid salts, and alkyl phosphates.
- ionic emulsifiers such as alkylamine salts, quaternary ammonium salts, alkyl betaines and amine oxides; and polyoxyethylene alkylenes.
- Non-emulsifiers such as polyether, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene alkylphenol ether, sorbitan fatty acid ester, glycerin fatty acid ester, polyoxyethylene fatty acid ester, etc. No. These can be used alone or in combination of two or more.
- the particles (A) and the particles (B) are converted into composite particles by various known composite particle forming methods such as a-one-cation adsorption, charge adsorption, and spraying, and then heat is applied. It is a method of producing uneven particles by reacting the first and second functional group-containing polymer compounds while melting them.
- the first and second functional groups react in a state in which each polymer compound is melted, so that the number of reaction points increases as in the above-described method, resulting in an increase in the bonding area. ) And the particles (B) can be more firmly bonded.
- the uneven particles In the production of the uneven particles, it is important to adjust at least the particles (A) to such an extent that the particles (A) are not uniformly covered with the particles (B). That is, since the uneven particles uniformly coated do not have a sufficient unevenness difference, there is a possibility that the unique function of the uneven particles cannot be exhibited.
- the diameter of the protrusions formed from the particles (B) and the distance between the protrusions are changed by adjusting the addition amounts of the particles (A) and the particles (B), the reaction temperature, the reaction time, the type of the polymerization medium, and the like, as appropriate. It is possible. Particles (A) and particles (B) must have a large particle diameter, specific gravity, etc.
- the addition amount of the particles (B) to the particles (A) is usually 0.01 to 50. mass 0/0, preferably from 0.1 to 20 weight 0/0, more preferably yo be mixed processed as 1-15 wt% ⁇ .
- the number average molecular weight is a value measured by gel filtration chromatography.
- GPC measuring device C-R7A, manufactured by Shimadzu Corporation
- UV spectrophotometer detector SPD-6A
- a mixture obtained by mixing the following raw material conjugates and the like in the following proportions was charged all at once, and the dissolved oxygen was replaced with nitrogen.At a nitrogen gas flow, the oil bath temperature was 80 ° C. The mixture was heated and stirred for about 15 hours to prepare a styrene-based copolymer particle solution having a carboxyl group.
- the obtained particle solution was repeatedly washed and filtered about 3 to 5 times with a mixed solution of water and methanol (mass ratio 3: 7) by a known suction filtration equipment and vacuum-dried to obtain core particles 1.
- This Observation and measurement of the particle diameter of Particle 1 by SEM revealed spherical particles having an average particle diameter of 3.5 m.
- Styrene-methacrylic copolymer resin solution 70 Og
- Core particles 2 were obtained in the same manner as in Synthesis Example 1 except that the following raw materials were used in the following proportions. Observation and measurement of the particle diameter of the core particles 2 by SEM revealed spherical particles having an average particle diameter of 12.9 m.
- Core particles 3 were obtained in the same manner as in Synthesis Example 1 except that the following raw materials were used in the following proportions and the oil bath temperature was 70 ° C. Observation and measurement of the particle diameter of the core particles 3 by SEM revealed spherical particles having an average particle diameter of 0.4 m.
- Core particles 4 having styrene homopolymer power were obtained in the same manner as in Synthesis Example 1 except that the following raw materials were used in the following proportions and the oil bath temperature was 78 ° C. Observation and measurement of the particle diameter of the core particles 4 by SEM revealed spherical particles having an average particle diameter of 4.4 m.
- the obtained particle solution is washed about 3 to 5 times with a water-methanol mixed solution (3: 7) for about 3 to 5 times by a known suction filtration equipment, and is repeatedly vacuum-dried to obtain composite particles (grafted particles 1). Obtained.
- this grafted particle 1 was measured with a Fourier transform infrared spectrophotometer (FT-IR8200PC, manufactured by Shimadzu Corporation, hereafter referred to as FT-IR), an absorption peak due to a carbodiimide group was obtained at a wavelength of about 2150 (lZcm). Thus, it was confirmed that the polymer having a carbodiimide group was grafted.
- FT-IR8200PC Fourier transform infrared spectrophotometer
- Particles having a grafted carbodiimide group were obtained in the same manner as in Synthesis Example 7, except that the core particles 2 and the solution obtained in Synthesis Example 6 were used.
- the obtained particle solution is washed about 3 to 5 times with a water-methanol mixed solution (3: 7) about 3 to 5 times by a known suction filtration equipment, and is repeatedly vacuum-dried to obtain composite particles (grafted particles 4). Obtained.
- grafted particles 4 were measured by FT-IR, an absorption peak due to an epoxy group was obtained at a wavelength of about 910 (lZcm), confirming that the polymer having an epoxy group was graphed. .
- spherical silica particles manufactured by Ube Nitto Danisei Co., Ltd.
- DMF dimethylformamide
- 3- was added and the mixture was stirred at 70 ° C for 30 minutes.
- the following organic compound was added, and 32 g of AIBNO., 8.4 g of styrene, and 3.6 g of methacrylic acid were added, and the mixture was heated at 70 ° C. for about 15 hours to react.
- the particles are washed about four times with tetrahydrofuran (hereinafter abbreviated as THF) —repeatedly filtered and dried, and the particles (grafted particles 5) are dried. Obtained.
- THF tetrahydrofuran
- the number average molecular weight was about 11,000.
- the theoretical average carboxyl group equivalent is 287.
- alumina particles obtained by classifying alumina particles (manufactured by Admatechs) into 90 g of DMF were well dispersed. Subsequently, 0.2 g of 3-methacryloxypropyltrimethoxysilane was added, and the mixture was stirred at 70 ° C for 30 minutes. Thereafter, 0.32 g of AIBN, 7.Og of styrene, and 3.0 g of methacrylic acid were added, and the mixture was reacted by heating at 70 ° C. for about 15 hours.
- Composite particles were obtained in the same manner as in Synthesis Example 12 except that spherical silica particles (average particle size: 9.9 ⁇ m, manufactured by Ube Nitto Danisei Co., Ltd.) were used (grafted particles 7).
- the IR spectrum of the grafted particles 7, FT- was measured by IR, the absorption derived from benzene ring in the vicinity of 700 cm 1, since the absorption attributable ester group appeared in the vicinity 1720cm- 1, having a carboxyl group It was confirmed that the polymer (styrene-methacrylic acid copolymer) was grafted.
- the number average molecular weight was about 35,000.
- the theoretical average carboxyl equivalent is 287 c
- the obtained particle solution is washed about 3 to 5 times with methanol in a known suction filtration apparatus to remove insolubles by repeating filtration, vacuum-dried, and then subjected to plating or vapor deposition uneven particles (hereinafter referred to as uneven particles).
- uneven particles plating or vapor deposition uneven particles
- Uneven particles were obtained in the same manner as in Example 1, except that the particles (A) were changed to the grafted particles 2 and the particles (B) were changed to the grafted particles 6.
- the obtained particle solution was repeatedly washed and filtered about 3 to 5 times with methanol in a known suction filtration apparatus to remove insolubles, and dried under vacuum to obtain composite particles. Observation of the shape of the particles by SEM revealed that the particles were irregular and consisted of three or more monodispersed primary particles with no aggregation at least in the surface layer.
- Uneven particles were obtained in the same manner as in Example 1, except that the particles (A) were changed to the grafted particles 7 and the particles (B) were changed to the grafted particles 3. Observation of the shape of these particles by SEM revealed that at least in the surface layer portion, a group of particles having irregularities in which three or more monodispersed primary particles having no aggregation were bonded.
- the obtained particle solution was repeatedly washed and filtered about 3 to 5 times with methanol in a known suction filtration apparatus to remove insolubles, and dried under vacuum to obtain composite particles. Observation of the shape of the particles by SEM revealed that there were almost no particles having irregularities on the surface layer.
- Core particle 4 (polystyrene only) 5. Og
- the obtained particle solution was repeatedly washed and filtered about 3 to 5 times with methanol in a known suction filtration apparatus to remove insolubles, and dried under vacuum to obtain composite particles. Observation of the shape of the particles with a SEM revealed that the particles had some irregularities on the surface layer.
- the obtained particle solution was repeatedly washed and filtered about 3 to 5 times with methanol in a known suction filtration apparatus to remove insolubles, and dried under vacuum to obtain composite particles. Observation of the shape of the particles with a SEM revealed that the particles had some irregularities on the surface layer.
- Each lg of the irregular particles was placed in 100 ml of a water-methanol mixed solution (mass ratio 3: 7), and was subjected to vibration or impact for 5 minutes with a homogenizer (US-150T, manufactured by Nippon Seiki Seisaku-sho). Then, it was transferred to a 300 ml flask. 100 ml of a mixed solution of water and methanol (mass ratio 3: 7) was poured into this flask and stirred at room temperature for 3 hours at 400 rpm using a crescent type stirring blade with a long diameter of 8 cm. Then, shear was applied to the particles. Next, filtration was performed twice using a known suction filtration device, followed by vacuum drying to obtain particles. The shape of the particles was observed by SEM, and the connectivity of the projections was evaluated.
- the concavo-convex particles of Examples 1 to 5 had a functional group-containing polymer compound in which the particles (A) and the particles (B) were each also grafted with a surface force.
- the bonding strength of the projections is excellent because they are bonded together by the bonding bonds via the functional groups of both polymer compounds.
- the bonding strength of the projections was extremely poor.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Graft Or Block Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
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KR1020067024678A KR20070032663A (ko) | 2004-05-24 | 2005-05-24 | 요철입자 및 그 제조방법 |
US11/569,458 US20080020207A1 (en) | 2004-05-24 | 2005-05-24 | Particle With Rough Surface And Process For Producing The Same |
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JP2004152950A JP5182460B2 (ja) | 2004-05-24 | 2004-05-24 | 凹凸粒子およびその製造方法 |
JP2004-152950 | 2004-05-24 |
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US (1) | US20080020207A1 (ja) |
JP (1) | JP5182460B2 (ja) |
KR (1) | KR20070032663A (ja) |
CN (1) | CN1957024A (ja) |
WO (1) | WO2005113649A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114456292A (zh) * | 2022-03-14 | 2022-05-10 | 上海理工大学 | 一种表面褶皱的聚苯乙烯-SiO2核壳纳米复合粒子及其制备方法 |
Families Citing this family (11)
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JP2006269296A (ja) * | 2005-03-24 | 2006-10-05 | Sekisui Chem Co Ltd | 突起粒子の製造方法、突起粒子、導電性突起粒子及び異方性導電材料 |
CA2632261A1 (en) * | 2005-12-05 | 2007-06-14 | Guava Technologies | Particle-based analyte characterization |
JP5379130B2 (ja) | 2008-05-21 | 2013-12-25 | 住友精化株式会社 | 表面に多数のくぼみを有する樹脂粒子 |
JP2010254934A (ja) * | 2009-04-28 | 2010-11-11 | Tokai Rika Co Ltd | 金属調塗料及び金属調インキ、金属調塗膜、並びにこれらの製造方法 |
US9364689B2 (en) * | 2009-12-22 | 2016-06-14 | Avon Products, Inc. | Cosmetic compositions comprising fibrous pigments |
EP2740673B1 (de) * | 2012-12-06 | 2015-07-08 | MSK - Verpackungs-Systeme GmbH | Verfahren und Vorrichtung zum Aufbringen einer Folie auf einen Gutstapel |
CN103467829B (zh) * | 2013-09-25 | 2015-10-28 | 南京天诗新材料科技有限公司 | 负载纳米二氧化硅的蜡水性分散体及其制备方法和用途 |
US10449474B2 (en) * | 2015-09-18 | 2019-10-22 | Hollingsworth & Vose Company | Filter media including a waved filtration layer |
US10058502B2 (en) | 2015-12-31 | 2018-08-28 | L'oreal | Nail polish compositions |
CA3055302A1 (en) | 2017-03-20 | 2018-09-27 | Fairmount Santrol Inc. | Flowback resistant proppants |
US10364154B1 (en) | 2018-06-26 | 2019-07-30 | Forecaster Chemicals, LLC | Systems and methods to strengthen sand proppant |
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JPH10338710A (ja) * | 1997-06-06 | 1998-12-22 | Mitsuru Akashi | 高分子超微粒子集合体の製造方法 |
JP2001342377A (ja) * | 2000-05-30 | 2001-12-14 | Nippon Shokubai Co Ltd | 複合粒子およびその製造方法 |
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US3929733A (en) * | 1974-10-02 | 1975-12-30 | Upjohn Co | Polycarbodiimides from 4,4{40 -methylenebis(phenyl isocyanate) and certain carbocyclic monoisocyanates |
US4060664A (en) * | 1975-12-08 | 1977-11-29 | Minnesota Mining And Manufacturing Company | Bonded composite structures |
JP2002173879A (ja) * | 2000-09-29 | 2002-06-21 | Kuraray Co Ltd | 皮革様シートの製造方法 |
JP5060692B2 (ja) * | 2001-07-13 | 2012-10-31 | 株式会社日本触媒 | 異方導電性材料 |
JP4117140B2 (ja) * | 2002-03-13 | 2008-07-16 | 日清紡績株式会社 | カルボジイミド含有硬化型反応性粒子、その製造方法及び用途 |
JP4206235B2 (ja) * | 2002-08-09 | 2009-01-07 | 日清紡績株式会社 | カルボジイミド樹脂層を有する複合粒子及びその製造方法 |
AU2003266508A1 (en) * | 2002-09-19 | 2004-04-08 | Nisshinbo Industries, Inc. | Flaky particles and process for production thereof |
-
2004
- 2004-05-24 JP JP2004152950A patent/JP5182460B2/ja not_active Expired - Lifetime
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2005
- 2005-05-24 US US11/569,458 patent/US20080020207A1/en not_active Abandoned
- 2005-05-24 KR KR1020067024678A patent/KR20070032663A/ko not_active Application Discontinuation
- 2005-05-24 WO PCT/JP2005/009457 patent/WO2005113649A1/ja active Application Filing
- 2005-05-24 CN CNA2005800166133A patent/CN1957024A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10338710A (ja) * | 1997-06-06 | 1998-12-22 | Mitsuru Akashi | 高分子超微粒子集合体の製造方法 |
JP2001342377A (ja) * | 2000-05-30 | 2001-12-14 | Nippon Shokubai Co Ltd | 複合粒子およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114456292A (zh) * | 2022-03-14 | 2022-05-10 | 上海理工大学 | 一种表面褶皱的聚苯乙烯-SiO2核壳纳米复合粒子及其制备方法 |
CN114456292B (zh) * | 2022-03-14 | 2023-11-07 | 上海理工大学 | 一种表面褶皱的聚苯乙烯-SiO2核壳纳米复合粒子及其制备方法 |
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US20080020207A1 (en) | 2008-01-24 |
CN1957024A (zh) | 2007-05-02 |
JP2005336223A (ja) | 2005-12-08 |
JP5182460B2 (ja) | 2013-04-17 |
KR20070032663A (ko) | 2007-03-22 |
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