WO2015083725A1 - 三次元造形物の補強方法 - Google Patents
三次元造形物の補強方法 Download PDFInfo
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- WO2015083725A1 WO2015083725A1 PCT/JP2014/081938 JP2014081938W WO2015083725A1 WO 2015083725 A1 WO2015083725 A1 WO 2015083725A1 JP 2014081938 W JP2014081938 W JP 2014081938W WO 2015083725 A1 WO2015083725 A1 WO 2015083725A1
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- dimensional structure
- cyanoacrylate
- reinforcing
- general formula
- impregnation composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
- B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F22/30—Nitriles
- C08F22/32—Alpha-cyano-acrylic acid; Esters thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/18—Plasticising macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0094—Condition, form or state of moulded material or of the material to be shaped having particular viscosity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2509/00—Use of inorganic materials not provided for in groups B29K2503/00 - B29K2507/00, as filler
- B29K2509/02—Ceramics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00181—Mixtures specially adapted for three-dimensional printing (3DP), stereo-lithography or prototyping
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/30—Nitriles
- C08F222/32—Alpha-cyano-acrylic acid; Esters thereof
- C08F222/327—Alpha-cyano-acrylic acid alkoxy ester
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J2333/04—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 esters
- C08J2333/06—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 esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2333/12—Homopolymers or copolymers of methyl methacrylate
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
Definitions
- the present invention relates to a method for reinforcing a three-dimensional structure using an impregnation composition containing a specific 2-cyanoacrylate.
- 3D modeling is a technology for manufacturing objects on the desktop based on computer-aided design (CAD) information, which can greatly reduce the time from design to manufacturing, and can produce small lots.
- This method is characterized in that it can be manufactured in detail according to orders.
- As main methods of three-dimensional modeling there are an optical modeling method, a sheet lamination method, and a powder modeling method.
- a powder molding method in which powder is melted or sintered using a laser, and a method in which powder is solidified using a binder.
- a cross-sectional layer is formed by selectively discharging a binder to a powder mainly composed of gypsum or the like by using an inkjet printing technique and solidifying the binder. And it is the method of obtaining a three-dimensional structure by laminating
- the powder molding method using this inkjet printing technology does not require a high-power laser like the optical modeling method, and the handling of the apparatus is simple, but the strength of the resulting model is weak, so molten wax, varnish In some cases, it is reinforced by impregnation with polyurethane adhesive, epoxy adhesive, 2-cyanoacrylate adhesive or the like.
- the 2-cyanoacrylate adhesive can be polymerized and cured in a short time by anion species such as the surface of the adherend and moisture in the air due to its high anion polymerizability, and can adhere various adherends. Widely used as an instant adhesive. Moreover, since it has low viscosity among adhesives, it is known that it can be used as an impregnation composition in order to reinforce wood-based materials and the like (for example, Patent Document 3).
- Patent Document 2 describes that a 2-cyanoacrylate adhesive can be used to reinforce a three-dimensional structure, but a 2-cyanoacrylate adhesive suitable for reinforcing a three-dimensional structure. No mention is made of agents.
- the impregnation composition described in Patent Document 3 is excellent in impregnation curability for wood-based materials, but it is difficult to cut a molded article made of inorganic powder, and the molded article is whitened after reinforcement. There is a problem of doing.
- the present invention has been made in view of the above-mentioned problems, and can not only easily reinforce a three-dimensional structure, but also a method capable of obtaining a three-dimensional structure with good appearance and cutting workability. The purpose is to provide.
- the inventors of the present invention are impregnating compositions containing a 2-cyanoacrylate ester having a specific structure, and the three-dimensional modeling when the viscosity of the impregnating composition and the hardness of the cured product thereof are within a predetermined range. It has been found that an object can be reinforced efficiently. In addition, the three-dimensional structure obtained by the reinforcing method of the present invention has been found to be excellent in cutting workability without being whitened, and the present invention has been completed.
- a method for reinforcing a three-dimensional structure using an impregnation composition containing 2-cyanoacrylate wherein the 2-cyanoacrylate is , At least one selected from the group consisting of a compound represented by the following general formula (1) and a compound represented by the following general formula (2), and the viscosity at 25 ° C. of the impregnation composition is 1 to Provided is a method for reinforcing a three-dimensional structure, which is 1000 mPa ⁇ s, and the Shore hardness D of the cured product of the impregnation composition is 20 to 75.
- [R 1 in Formula (1) is a C 3-12 alkyl group having a straight chain or a side chain, a cycloalkyl group, an allyl group, or an aryl group.
- [R 2 in the formula (2) is an alkylene group having 1 to 4 carbon atoms
- R 3 is an alkyl group having 1 to 8 carbon atoms having a straight chain or a side chain.
- the impregnation composition contains both the compound represented by the general formula (1) and the compound represented by the general formula (2).
- the impregnation composition further contains a plasticizer.
- the three-dimensional structure is manufactured using a powder modeling method, and the powder is an inorganic compound.
- the method for reinforcing a three-dimensional structure according to the present invention is a method performed using an impregnation composition containing 2-cyanoacrylate ester having a specific structure, and the viscosity of the impregnation composition and the cured product thereof Since the hardness is in a predetermined range, the workability is good and the three-dimensional structure can be easily reinforced. In addition, the obtained three-dimensional structure can be easily cut without being whitened.
- the whitening refers to a phenomenon in which the volatilized 2-cyanoacrylic acid ester adheres to the periphery of the reinforcing part and hardens in a powder form, and the three-dimensional structure becomes white.
- the method for reinforcing a three-dimensional structure according to the present invention is performed using an impregnation composition containing 2-cyanoacrylic acid ester having a specific structure, and the viscosity at 25 ° C. of the impregnation composition is 1 to The Shore hardness D of the cured product of the impregnating composition is 20 to 75.
- the impregnation composition used in the present invention contains at least one 2-cyanoacrylic acid ester of a compound represented by the following general formula (1) and a compound represented by the following general formula (2).
- R 1 in Formula (1) is a C 3-12 alkyl group having a straight chain or a side chain, a cycloalkyl group, an allyl group, or an aryl group.
- R 2 in the formula (2) is an alkylene group having 1 to 4 carbon atoms
- R 3 is an alkyl group having 1 to 8 carbon atoms having a straight chain or a side chain.
- Examples of the 2-cyanoacrylic acid ester represented by the general formula (1) include 2-cyanoacrylic acid n-propyl, i-propyl, allyl, n-butyl, i-butyl, n-pentyl, n And esters such as -hexyl, cyclohexyl, phenyl, heptyl, 2-ethylhexyl, n-octyl, 2-octyl, n-nonyl, n-decyl, n-dodecyl and the like. These 2-cyanoacrylic acid esters may be used alone or in combination of two or more.
- Examples of the 2-cyanoacrylate represented by the general formula (2) include methoxyethyl, methoxypropyl, methoxyisopropyl, methoxybutyl, ethoxyethyl, ethoxypropyl, ethoxyisopropyl, propoxymethyl, propoxyethyl, Isopropoxyethyl, propoxypropyl, butoxymethyl, butoxyethyl, butoxypropyl, butoxyisopropyl, butoxybutyl, hexoxymethyl, hexoxyethyl, hexoxypropyl, hexoxyisopropyl, hexoxybutyl, 2-ethylhexoxymethyl, 2-ethylhexoxyethyl, Examples thereof include esters such as 2-ethylhexoxypropyl, 2-ethylhexoxyisopropyl, and 2-ethylhexoxybutyl. These 2-cyanoacrylic acid esters may be used alone
- the impregnation composition used in the present invention preferably contains both the compound represented by the general formula (1) and the compound represented by the general formula (2) among the 2-cyanoacrylic acid ester.
- the content of the compound represented by the general formula (1) is preferably 5 to 90% by mass and preferably 10 to 80% by mass with respect to the total amount of 2-cyanoacrylic acid ester. Is more preferable. If the content of the compound represented by the general formula (1) is in the range of 5 to 90% by mass, it is possible to obtain a three-dimensional structure that is rapidly cured at the time of impregnation and particularly has good machinability.
- Specific combinations of the compound represented by the general formula (1) and the compound represented by the general formula (2) include n-propyl 2-cyanoacrylate, methoxyethyl 2-cyanoacrylate, and 2-cyanoacrylic. N-propyl acid and ethoxyethyl 2-cyanoacrylate, i-propyl 2-cyanoacrylate and methoxyethyl 2-cyanoacrylate, i-propyl 2-cyanoacrylate and ethoxyethyl 2-cyanoacrylate and 2-cyano N-butyl acrylate and methoxyethyl 2-cyanoacrylate, n-butyl 2-cyanoacrylate and ethoxyethyl 2-cyanoacrylate, i-butyl 2-cyanoacrylate and methoxyethyl 2-cyanoacrylate, 2- I-butyl cyanoacrylate and ethoxyethyl 2-cyanoacrylate, n-o-2-cyanoacrylate Cyl and methoxyethyl 2-cyanoacrylate,
- the impregnation composition can contain a 2-cyanoacrylic acid ester other than the above general formula (1) and general formula (2) as long as the effects of the present invention are not impaired.
- 2-cyanoacrylic acid esters other than those represented by general formulas (1) and (2) include methyl and ethyl esters of 2-cyanoacrylic acid.
- the content of the 2-cyanoacrylate is preferably 50% by mass or less, and more preferably 40% by mass or less based on the total amount of 2-cyanoacrylate. If this content is 50 mass% or less, whitening of a molded article can be suppressed while improving curability when impregnated.
- the viscosity of the impregnation composition at 25 ° C. needs to be 1 to 1000 mPa ⁇ s.
- the viscosity is preferably 1 to 500 mPa ⁇ s, and more preferably 1 to 300 mPa ⁇ s.
- the viscosity is less than 1 mPa ⁇ s, it is difficult to form a cured layer when impregnating the three-dimensional structure, and sufficient reinforcement may not be possible.
- the viscosity exceeds 1000 mPa ⁇ s, it becomes difficult to impregnate the three-dimensional structure, the curing is slow, and the reinforcing effect cannot be obtained.
- the viscosity of the impregnating composition is such that a thickener generally used for 2-cyanoacrylate adhesives, a compound represented by the above general formula (1), and a compound represented by the general formula (2) It can be prepared by blending ratio, content of other additives, and the like.
- the Shore hardness D of the cured product of the impregnation composition needs to be 20 to 75.
- the Shore hardness D is preferably 25 to 65, more preferably 30 to 55. If the Shore hardness D is less than 20, the cured product may be too soft and the reinforcing effect may not be obtained. On the other hand, when Shore hardness D exceeds 75, it exists in the tendency for cutting workability to fall.
- the Shore hardness D can be prepared by the content of the plasticizer described later, the blending ratio of the compound represented by the general formula (1) and the compound represented by the general formula (2), or the like.
- the impregnation composition used in the present invention preferably contains a plasticizer in addition to the 2-cyanoacrylate ester.
- the plasticizer is a component that enhances the machinability of the cured product of the impregnation composition, and any plasticizer may be used as long as it does not adversely affect the polymerizability and storage stability of 2-cyanoacrylate.
- plasticizers include triethyl acetyl citrate, tributyl acetyl citrate, dimethyl glutarate, diethyl glutarate, dibutyl glutarate, dimethyl adipate, diethyl adipate, dibutyl adipate, dimethyl sebacate, and sebacic acid.
- tributyl acetyl citrate dimethyl adipate, dimethyl phthalate, 2-ethylhexyl benzoate, and dipropylene from the viewpoint of good compatibility with 2-cyanoacrylate and high plasticization efficiency.
- Glycol dibenzoate is preferred.
- These plasticizers may be used alone or in combination of two or more.
- the content of the plasticizer is preferably 10 to 50% by mass and more preferably 10 to 40% by mass when the total amount of the impregnating composition is 100% by mass. If the content of the plasticizer is in the range of 10 to 50% by mass, the effect on the curability when impregnated is small, and the machinability of the three-dimensional structure is improved.
- a stabilizer, a thickener, and a curing accelerator conventionally used in an adhesive composition containing 2-cyanoacrylate ester are used.
- An appropriate amount of an agent, a colorant, a fragrance, a solvent, a strength improver, and the like can be blended within a range that does not impair the effects of the present invention.
- the stabilizer examples include (1) aliphatic sulfonic acid such as sulfur dioxide and methanesulfonic acid, aromatic sulfonic acid such as p-toluenesulfonic acid, anion such as boron trifluoride diethyl ether, HBF 4 and trialkylborate. Polymerization inhibitors, (2) radical polymerization inhibitors such as hydroquinone, hydroquinone monomethyl ether, t-butylcatechol, catechol and pyrogallol. These stabilizers may be used alone or in combination of two or more.
- the content of the stabilizer is preferably 1 ppm to 1 part by mass with respect to 100 parts by mass of the 2-cyanoacrylate ester.
- the thickener examples include polymethyl methacrylate, a copolymer of methyl methacrylate and an acrylate ester, a copolymer of methyl methacrylate and other methacrylate ester, an acrylic rubber, a urethane rubber, and a polychlorinated acid. Examples thereof include vinyl, polystyrene, cellulose ester, polyalkyl-2-cyanoacrylate ester, and ethylene-vinyl acetate copolymer. These thickeners may be used alone or in combination of two or more. The content of the thickener is preferably 0.1 to 20 parts by mass with respect to 100 parts by mass of the 2-cyanoacrylate ester.
- curing accelerator examples include polyalkylene oxides, crown ethers, silacrown ethers, calixarenes, oxacalixarenes, cyclodextrins, and pyrogallol-based cyclic compounds. These hardening accelerators may use only 1 type and may use 2 or more types together.
- the polyalkylene oxides are polyalkylene oxides or derivatives thereof.
- JP-B-60-37836, JP-B-1-43790, JP-A-63-128088, JP-A-3-167279, etc. Is disclosed.
- polyalkylene oxide examples include diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, polypropylene glycol, poly 1,3-propylene glycol, polytrimethylene oxide, polytetramethylene oxide, polyepiacrylhydrin, poly 1, 3-bis (chloromethyl) butylene oxide, polytetramethylene glycol, poly 1,3-dioxolane, poly 2,2-bis (chloromethyl) propylene oxide, ethylene oxide-propylene oxide block polymer, diglycerin, triglycerin, tetra
- polyglycerol such as glycerol, formaldehyde condensate, acetaldehyde condensate, trioxane polymer, and polyether type urethane curing
- Polyalkylene oxide of various commercially available is given as calcitriol.
- polyalkylene oxide derivative examples include an ester of the polyalkylene oxide and an acid, or an ether of the polyalkylene oxide and a hydroxy group-containing compound, but is not particularly limited thereto. Any one having a polyalkylene oxide structure inside the molecule, such as those having various substituents at the molecular terminal of the polyalkylene oxide, other bonds within the polyalkylene oxide, etc. You may have.
- ester of polyalkylene oxide examples include polyethylene glycol monoester, polyethylene glycol diester or polypropylene glycol diester (for example, esters such as acetate, trifluoroacetate, laurate, stearate, oleate, acrylate or methacrylate), bisphenol A-polyalkylene oxide adduct (alkylene such as ethylene, propylene, etc., the same shall apply hereinafter), hydrogenated bisphenol A-polyalkylene oxide adduct, trimethylolpropane-polyalkylene oxide adduct, glycerin-polyalkylene oxide adduct, Polyoxyethylene sorbitan ester, tetraoleic acid-polyoxyethylene sorbit, adipic acid-polyalkylene Side adduct, trimellitic acid-polyalkylene oxide adduct, isocyanate compound-polyalkylene oxide adduct, phosphoric acid-polyalkylene oxide
- polyalkylene oxide ethers include diethylene glycol monoalkyl ether, diethylene glycol dialkyl ether or polyethylene glycol monoalkyl ether (wherein alkyl includes, for example, methyl, ethyl, propyl, butyl, lauryl, cetyl, stearyl, oleyl, perfluoro Alkyl, etc.), polyethylene glycol monoaryl ether, polyethylene glycol dialkyl ether or polypropylene glycol dialkyl ether (as alkyl, for example, methyl, ethyl, propyl, butyl, etc.), polyethylene glycol diaryl ether (as aryl, for example, phenyl, octyl, etc.) Phenyl, nonylphenyl, etc.).
- alkyl includes, for example, methyl, ethyl, propyl, butyl, lauryl, cetyl, stearyl, oleyl, perfluor
- crown ethers examples include those already disclosed in Japanese Patent Publication No. 55-2238, Japanese Patent Application Laid-Open No. 3-167279, Japanese Patent Application Laid-Open No. 2002-201436, and the like. Specific examples include 12-crown-4, 15-crown-5, 18-crown-6, benzo-12-crown-4, benzo-15-crown-5, benzo-18-crown-6, dibenzo-18.
- silacrown ethers examples include those disclosed in JP-A-60-168775. Specific examples thereof include dimethylsila-11-crown-4, dimethylsila-14-crown-5, dimethylsila-17. -Crown-6 and the like.
- calixarenes and oxacalixarenes for example, those disclosed in each specification such as US Pat. Nos. 4,556,700, 4,636,539, 4,718,966 and 4,855,461 can be used.
- Specific examples thereof include tetrakis (4-t-butyl-2-methylenephenoxy) ethyl acetate, 25,26,27,28-tetra- (2-oxo-2-ethoxy) -ethoxycalix [4] arene, 5 , 11,17,23,29,35-hexa-tert-butyl-37,38,39,40,41,42-hexahydroxycalix [6] arene, 37,38,39,40,41,42- Hexahydroxyoxyx [6] arene, 37,38,39,40,41,42-hexa- (2-oxo-2-ethoxy) -ethoxycalix [6] arene, 5,11,17,23,29, 35,41,
- cyclodextrins examples include those disclosed in JP-T-5-505835. Specific examples include ⁇ -, ⁇ -, and ⁇ -cyclodextrin.
- Examples of pyrogallol-based cyclic compounds include compounds disclosed in JP 2000-191600 A. Specifically, 3, 4, 5, 10, 11, 12, 17, 18, 19, 24, 25, 26-dodecaethoxycarbomethoxy-C-1, C-8, C-15, C-22 And tetramethyl [14] -metacyclophane.
- the content of the curing accelerator is preferably 50 ppm to 5 parts by mass, more preferably 100 ppm to 2 parts by mass, with 100 parts by mass of 2-cyanoacrylate.
- the method for reinforcing a three-dimensional structure according to the present invention can be applied to a three-dimensional structure obtained by any method, but is particularly preferable for a three-dimensional structure obtained using a powder modeling method. Used.
- the powder used in the powder modeling method is not particularly limited as long as it is used for three-dimensional modeling.
- thermoplastic resins such as polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polytetrafluoroethylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polysulfone, polyphenylene oxide; unsaturated polyester, divinylbenzene polymer, divinylbenzene Cross-linked resin such as styrene copolymer, divinylbenzene- (meth) acrylate copolymer, diallyl phthalate polymer; spherical silica, glass beads, glass fiber, glass balloon, alumina, zirconia, zirconium silicate, hydroxyapatite, Inorganic compounds such as silicon carbide, silicon nitride, sodium chloride, calcium chloride, calcium carbonate, gypsum; silicone compounds; organic polymer backbone and polysiloxa The organic-inorganic composite particles and the like comprising a skeleton.
- These powders are appropriately selected according to the strength, texture, etc. required for the shaped article, but are preferably inorganic compounds from the viewpoint of curability of the impregnation composition used in the present invention. Since the inorganic compound contains adsorbed moisture and anion species, the impregnating composition that has penetrated into the powder is quickly cured.
- the maximum particle size of the particles needs to be smaller than the thickness of the layer of the three-dimensional structure, and a thinner structure can be produced as the particles are finer.
- the average particle size of the particles is preferably 1 to 300 ⁇ m, more preferably 5 to 100 ⁇ m, and still more preferably 10 to 50 ⁇ m.
- Organic binders are various polymer resins. Specific examples thereof include natural resins, natural resin derivatives, phenol resins, xylene resins, urea resins, melamine resins, ketone resins, coumarone / indene resins, petroleum resins, terpene resins, cyclic resins.
- Chlorinated rubber chlorinated rubber, alkyd resin, polyamide resin, polyvinyl chloride resin, acrylic resin, vinyl chloride / vinyl acetate copolymer resin, polyester resin, polyvinyl acetate, polyvinyl alcohol, polyvinyl butyral, chlorinated polypropylene, styrene resin , Epoxy resin, urethane resin, cellulose derivative and the like.
- a silicate-based inorganic binder can also be used.
- the method for reinforcing a three-dimensional structure according to the present invention is to apply and cure the impregnation composition on the surface of the three-dimensional structure obtained by the powder modeling method or the like, and to form the entire structure or a necessary part. It is something to reinforce.
- the method for applying the impregnating composition is not particularly limited, and the impregnation composition can be applied in a dot shape, a linear shape, a spiral shape, or the like. Moreover, you may spray-apply using a sprayer. Furthermore, when reinforcing the whole molded article, you may immerse a molded article in the liquid of the composition for impregnation.
- the impregnation composition used in the present invention is a one-component room-temperature curing type, it may be left as it is after being applied to a shaped article.
- the curing time depends on the coating amount of the impregnating composition, but if it is left for several minutes to several tens of minutes, it can proceed to the next step such as cutting and painting.
- the liquid containing a hardening accelerator can be sprayed on a molded article, or a molded article can be left in the container of hardening accelerator atmosphere.
- a kind of hardening accelerator what uses an amine compound as an active ingredient is good.
- Viscosity was measured at 25 ° C. using an E-type viscometer.
- the impregnating compositions of Examples 1 to 7 were at a level that had no practical problems in terms of reinforcing effect, cutting workability, and whitening phenomenon.
- the impregnating compositions of Comparative Examples 1, 3, and 4 did not contain the 2-cyanoacrylic acid ester specified in the present invention, the molded product was severely whitened and deteriorated in appearance.
- Comparative Examples 2 and 5 contain 2-cyanoacrylate ester specified in the present invention, but the cured product has a Shore hardness D higher than the range of the present invention, so that the machinability is inferior.
- Comparative Example 6 contained the 2-cyanoacrylic acid ester specified in the present invention, the shore hardness D of the cured product was lower than the range of the present invention, so that the reinforcing effect was inferior.
- the method for reinforcing a three-dimensional structure of the present invention is performed using a one-component room temperature curing impregnation composition, no special apparatus is required, and the structure can be easily reinforced. Moreover, the obtained modeling thing can be cut easily.
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Abstract
Description
前記方式のうち、粉体造形方式には、レーザーを用いて粉体を溶融又は焼結させるものと、結合剤を用いて粉体を固化させるものがある。後者の方法は、インクジェットプリント技術を用いて石膏等を主成分とする粉体に結合剤を選択的に吐出し、固化させて断面層を形成する。そして、この断面層を積層することにより、三次元造形物を得る方法である(例えば、特許文献1、2)。このインクジェットプリント技術を用いた粉体造形方式は、光造形方式のような高出力レーザーは不要で、装置の取り扱いが簡単であるが、得られた造形物の強度が弱いため、溶融ワックス、ワニス、ポリウレタン系接着剤、エポキシ系接着剤、又は2-シアノアクリレート系接着剤等を含浸させることにより補強される場合がある。
また、特許文献3に記載された含浸用組成物は、木質系材料に対する含浸硬化性は優れているものの、無機粉体からなる造形物の切削加工が難しいという問題や、補強後に造形物が白化するという問題がある。
本発明は、上記問題点に鑑みてなされたものであって、三次元造形物を簡単に補強することができるだけでなく、外観及び切削加工性が良好な三次元造形物を得ることができる方法を提供することを目的とする。
すなわち、本発明は、その一局面によれば、2-シアノアクリル酸エステルを含有する含浸用組成物を用いて、三次元造形物を補強する方法であって、前記2-シアノアクリル酸エステルが、下記一般式(1)で表される化合物及び下記一般式(2)で表される化合物からなる群より選ばれた少なくとも一つであり、前記含浸用組成物の25℃における粘度が1~1000mPa・sであり、かつ、含浸用組成物の硬化物のショア硬度Dが20~75である、三次元造形物の補強方法を提供する。
本発明の好ましい態様によれば、上記含浸用組成物は、上記一般式(1)で表される化合物及び上記一般式(2)で表される化合物の両方を含有する。
本発明の別の好ましい態様によれば、上記含浸用組成物は、更に可塑剤を含有する。
本発明の更に別の好ましい態様によれば、上記三次元造形物は、粉体造形方式を用いて製造されたものであり、当該粉体は無機化合物である。
(1)粘度
粘度は、E型粘度計を用いて25℃で測定した。
硬化促進剤(東亞合成社製 商品名「aaセッター」)を用いて含浸用組成物を硬化させ、直径20mm×厚さ2mmの硬化物を作製した。25℃において、この硬化物のショア硬度Dを測定した。なお、ショア硬度計として、上島製作所製 型式「HD-104N」を用いた。
石膏の粉末、及び結合剤としてポリビニルアルコール系水溶性樹脂を使用し、3Dプリンター(3D Systems社製 型式「ZPrinter 450」)により、造形物(縦20mm×横100mm×厚さ10mm)を作製した。この造形物を含浸用組成物の液に30分間浸漬し、次いで室温下で24時間風乾させ、補強した造形物(試験片)を得た。
上記試験片の一方の端を手で持ち、他方の端を手で叩いた時の状態を観察し、次のように補強効果を評価した。
[評価基準]
○:試験片の割れは認められなかった。
×:試験片に割れが生じた。
上記補強効果の評価で作製した試験片を用い、ナイフで切断した時の状態を次のように評価した。
[評価基準]
○:容易に切断が可能であった。
△:力が必要であるが、切断が可能であった。
×:切断時に、試験片に割れが生じた。
上記補強効果の評価で作製した試験片の白化状態を、目視により観察し、次のように評価した。
[評価基準]
○:白化現象は認められなかった。
△:一部に白化現象が認められた。
×:激しく白化し、見栄えが悪くなった。
実施例1
2-シアノアクリル酸エトキシエチルに、二酸化硫黄を40ppm、ハイドロキノンを1000ppm(2-シアノアクリル酸エトキシエチルを100質量部とする)配合し、室温下で撹拌して含浸用組成物を製造した。評価結果は、表1に示す。
表1に記載の含浸用組成物を製造して評価した。表1における増粘剤として、次のものを使用した。
・ポリメタクリル酸メチル:エボニックデグサ社製 商品名「デガラン」、重量平均分子量30万
Claims (4)
- 2-シアノアクリル酸エステルを含有する含浸用組成物を用いて、三次元造形物を補強する方法であって、
前記2-シアノアクリル酸エステルが、下記一般式(1)で表される化合物及び下記一般式(2)で表される化合物からなる群より選ばれた少なくとも一つであり、
前記含浸用組成物の25℃における粘度が1~1000mPa・sであり、かつ、含浸用組成物の硬化物のショア硬度Dが20~75である、三次元造形物の補強方法。
- 上記含浸用組成物が、上記一般式(1)で表される化合物及び上記一般式(2)で表される化合物の両方を含有する請求項1に記載の三次元造形物の補強方法。
- 上記含浸用組成物が、更に可塑剤を含有する請求項1又は2に記載の三次元造形物の補強方法。
- 上記三次元造形物は、粉体造形方式を用いて製造されたものであり、当該粉体が無機化合物である請求項1~3のいずれか1項に記載の三次元造形物の補強方法。
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US15/101,709 US10196316B2 (en) | 2013-12-05 | 2014-12-03 | Reinforcement method for three-dimensional shaped object |
CN201480066092.1A CN105793017B (zh) | 2013-12-05 | 2014-12-03 | 三维造型物的增强方法 |
EP14867004.5A EP3078481B1 (en) | 2013-12-05 | 2014-12-03 | Reinforcement method for three-dimensional shaped object |
KR1020167014891A KR102277672B1 (ko) | 2013-12-05 | 2014-12-03 | 삼차원 조형물의 보강 방법 |
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JP2017144561A (ja) * | 2016-02-15 | 2017-08-24 | 株式会社Lixil | 窯業原料、焼成体の製造方法、及び焼成体 |
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US11066579B2 (en) | 2015-04-28 | 2021-07-20 | Toagosei Co., Ltd. | Curable composition and method for reinforcing shaped structure with use of same |
JP2017144561A (ja) * | 2016-02-15 | 2017-08-24 | 株式会社Lixil | 窯業原料、焼成体の製造方法、及び焼成体 |
JP2017160298A (ja) * | 2016-03-08 | 2017-09-14 | 株式会社スリーボンド | シアノアクリレート組成物及びシアノアクリレート組成物によるコーティング方法 |
JP2018196971A (ja) * | 2017-05-25 | 2018-12-13 | 日油株式会社 | 粉末固着積層法による立体造形物用補強剤 |
Also Published As
Publication number | Publication date |
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EP3078481B1 (en) | 2021-04-07 |
US20160304406A1 (en) | 2016-10-20 |
KR102277672B1 (ko) | 2021-07-15 |
CN105793017A (zh) | 2016-07-20 |
TW201522453A (zh) | 2015-06-16 |
US10196316B2 (en) | 2019-02-05 |
TWI653268B (zh) | 2019-03-11 |
JPWO2015083725A1 (ja) | 2017-03-16 |
CN105793017B (zh) | 2020-01-24 |
JP6217761B2 (ja) | 2017-10-25 |
EP3078481A4 (en) | 2017-07-19 |
EP3078481A1 (en) | 2016-10-12 |
KR20160094966A (ko) | 2016-08-10 |
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