WO2006088087A1 - ノルボルネン系樹脂成形体およびその製造方法 - Google Patents
ノルボルネン系樹脂成形体およびその製造方法 Download PDFInfo
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- WO2006088087A1 WO2006088087A1 PCT/JP2006/302725 JP2006302725W WO2006088087A1 WO 2006088087 A1 WO2006088087 A1 WO 2006088087A1 JP 2006302725 W JP2006302725 W JP 2006302725W WO 2006088087 A1 WO2006088087 A1 WO 2006088087A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
- C08G61/04—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms
- C08G61/06—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds
- C08G61/08—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes only aliphatic carbon atoms prepared by ring-opening of carbocyclic compounds of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
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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
- B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
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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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
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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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/38—Polymers of cycloalkenes, e.g. norbornene or cyclopentene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
Definitions
- the present invention relates to a norbornene-based resin molded article containing a specific filler and a method for producing the same. Moreover, this invention relates to the reaction undiluted solution used suitably for this manufacturing method. Background art
- reaction liquid containing a norbornene monomer and a metathesis catalyst is injected into a mold by a reaction injection molding method (RIM), and a ring-opening polymerization is performed to produce a molded body made of a norbornene resin.
- RIM reaction injection molding method
- the reaction solution is usually obtained by instantaneously mixing two or more reaction stock solutions with a collision mixer or the like.
- the raw reaction solution is not bulk polymerized with only one liquid, but when all liquids are mixed, it becomes a reaction liquid containing each component in a predetermined ratio, and the norbornene monomer is bulk polymerized.
- Patent Document 3 It has also been proposed to use a filler having a specific particle size such as calcium carbonate (Patent Document 3). However, the effect of improving the rigidity was insufficient with this method.
- Patent Document 1 JP-A-58-129013
- Patent Document 2 JP-A-2-185558
- Patent Document 3 Japanese Patent Laid-Open No. 2003-321597
- a norbornene-based resin molded product obtained by bulk polymerization of a norbornene-based monomer in a mold, having an aspect ratio of 5 to: LOO
- a norbornene-based resin molded article characterized by containing a material and a particulate filler having an aspect ratio of 1 to 2.
- the fibrous filler is preferably wollastonite, and the particulate filler is preferably calcium carbonate.
- the amount ratio of the fibrous filler and the particulate filler is preferably 95: 5 to 55:45 in terms of a weight ratio of fibrous filler: particulate filler.
- the total content of the fibrous filler and the particulate filler is preferably 5 to 60% by weight with respect to 100% by weight of the whole norbornene-based resin molded body.
- the norbornene-based resin molded body may be a composite molded body formed integrally with a composite member.
- the amount ratio of the fibrous filler and the particulate filler, and the total content of the fibrous filler and the particulate filler are multiple.
- the quantity ratio and content in the norbornene-based resin portion excluding the composite member are shown.
- a method for producing the norbornene-based resin molded article comprising the norbornene-based monomer, a metathesis catalyst, the fibrous filler, and the particulate filler. Injecting the reaction solution into a mold, and bulk polymerization in the mold. A featured manufacturing method is provided.
- the reaction solution is preferably prepared by mixing a reaction stock solution containing at least the norbornene-based monomer, the fibrous filler, and the particulate filler with another reaction stock solution.
- a composite member may be installed in the mold.
- reaction stock solution (H) used in the method for producing the norbornene-based resin molded product, the norbornene-based monomer, the fibrous filler, and the particulate filler.
- the total content of the fibrous filler and the particulate filler is the whole reaction stock solution ( ⁇ ).
- the norbornene-based resin molded article of the present invention is highly rigid and has excellent dimensional stability with little rigidity anisotropy. Therefore, various types of housing equipment, general building parts, electrical parts, automobile parts, etc. It can be suitably used for a wide range of applications.
- the reaction stock solution ( ⁇ ) of the present invention suppresses sedimentation of the filler, there is no clogging of piping when used for reaction injection molding, and a uniform molded product can be obtained.
- the norbornene-based resin molded product of the present invention (hereinafter, sometimes simply referred to as “molded product”) is a molded product of norbornene-based resin obtained by bulk polymerization of norbornene-based monomers in a mold. And a fibrous filler and a particulate filler.
- the molded article of the present invention can be produced by the production method of the present invention.
- the production method of the present invention is characterized in that a reaction liquid containing a norbornene-based monomer, a metathesis catalyst, a fibrous filler, and a particulate filler is injected into a mold, and bulk polymerization is performed in the mold. .
- the reaction solution used in the production method of the present invention is a mixture of a reaction stock solution prepared by dividing a norbornene monomer, a metathesis catalyst, a fibrous filler, a particulate filler and an optional component into two or more liquids. Is obtained.
- the reaction stock solution does not bulk polymerize with only one solution, When all the liquids are mixed, a reaction liquid containing each component in a predetermined ratio is obtained, and the norbornene monomer is polymerized in a bulk manner.
- Examples of the optional component include an activator, an activity regulator, an elastomer, and an antioxidant.
- the norbornene monomer used in the present invention is a compound having a norbornene ring structure, and any compound may be used as long as it is such a compound. Among them, it is preferable to use a tricyclic or higher polycyclic norbornene-based monomer because a molded product having excellent heat resistance can be obtained.
- norbornene-based monomer examples include bicyclic compounds such as norbornene and norbornagen; tricyclic compounds such as dicyclopentagen (cyclopentagen dimer) and dihydrodicyclopentagen; tetracyclododecene Tetracycles such as cyclopentagen trimer; heptacycles such as cyclopentagen tetramer; alkyls such as methyl, ethyl, propyl, butyl, etc., and alkyls such as butyl.
- Substituents such as alkylidene such as ethylidene, aryl, such as phenol, tolyl and naphthyl; and substituents having polar groups such as ester group, ether group, cyano group and halogen atom;
- Dicyclopentagen which is preferred as a tricyclic, tetracyclic, or pentacyclic monomer, is particularly preferred because it is readily available, has excellent reactivity, and excellent heat resistance of the resulting molded product! /.
- the ring-opening polymer to be produced is a thermosetting type.
- a reactive cyclopentagen trimer or the like is used. It is preferable to use one containing at least a crosslinkable monomer having two or more double bonds. The proportion of such a crosslinkable monomer in all norbornene monomers is preferably 2 to 30% by weight.
- the fibrous filler used in the present invention is a solid material insoluble in a norbornene-based monomer and has an aspect ratio of 5 to 100.
- the aspect ratio is preferably 10 to 50, more preferably 15 to 35. If the aspect ratio is too small, the molded body may have insufficient rigidity and dimensional stability. On the other hand, if it is too large, the injection nozzle may become clogged when it is injected into the mold.
- the aspect ratio of the filler is a ratio between the average major axis diameter of the filler and the 50% volume cumulative diameter.
- the average major axis diameter is a number average major axis diameter calculated as an arithmetic average value of the major axis diameters of 100 fillers randomly selected from an optical micrograph.
- the 50% volume cumulative diameter is a value obtained by measuring the particle size distribution by the X-ray transmission method.
- the 50% volume cumulative diameter of the fibrous filler is preferably 0.1 to 50 m, and more preferably 1 to 30 / z m. If the 50% volume cumulative diameter is excessively small, the molded body may have insufficient rigidity and dimensional stability. On the other hand, if it is too large, it may settle in the tank piping or clog the injection nozzle when the reaction solution is injected into the mold.
- the fibrous filler include glass fiber, wollastonite, potassium titanate, zonolite, basic magnesium sulfate, aluminum borate, tetrapot type zinc oxide, gypsum fiber, and phosphate fiber. , Alumina fibers, acicular calcium carbonate, acicular bermite, and the like. Of these, wollastonite is preferred because it can increase rigidity with a small amount of use and does not inhibit the bulk polymerization reaction.
- the particulate filler used in the present invention is a solid material insoluble in a norbornene-based monomer and has an aspect ratio of 1 to 2.
- the aspect ratio is preferably 1 to 1.5.
- the 50% volume cumulative diameter of the particulate filler is preferably 0.1 to 50 m, more preferably 1 to 30 111, and particularly preferably 1 to: LO m. If the 50% volume cumulative diameter is too small, the molded body may have insufficient rigidity and dimensional stability. On the other hand, if the reaction liquid is excessively large, it may settle in the tank or piping when the reaction liquid is injected into the mold or the injection nozzle may be clogged.
- particulate filler examples include calcium carbonate, calcium silicate, calcium sulfate. Rum, aluminum hydroxide, magnesium hydroxide, titanium oxide, zinc oxide, barium titanate, silica, alumina, carbon black, graphite, antimony oxide, red phosphorus, various metal powders, clay, various ferrites, hydrite You can list sites. These particulate fillers may be hollow bodies. Of these, calcium carbonate is preferred because it does not inhibit the bulk polymerization reaction.
- the fibrous filler and the particulate filler have a hydrophobic surface.
- the filler can be uniformly dispersed in the resulting molded body, the rigidity and dimensional stability of the resulting molded body can be made uniform, and anisotropy can be reduced. Can be small.
- the treating agent used in the hydrophobizing treatment include silane coupling agents, titanate coupling agents, aluminum coupling agents, fatty acids, fats and oils, surfactants, waxes, and other polymers.
- the method of the hydrophobization treatment is not particularly limited.
- the untreated filler and the hydrophobizing treatment agent are contained in separate reaction stock solutions, and two or more reaction stock solutions are mixed, Force capable of simultaneously performing hydrophobization treatment of filler It is preferable to prepare a reaction stock solution using a hydrophobized filler.
- the hydrophobized filler By using the hydrophobized filler, the aggregation of the filler can be prevented, so that the dispersibility in the reaction stock solution is improved and the sedimentation of the filler can be suppressed.
- the amount of the filler in the reaction solution is preferably 5 to 60% by weight, more preferably 10 to 50% by weight in total of the fibrous filler and the particulate filler. If the amount of the filler is too large, it may settle in the tank or piping when the reaction solution is injected into the mold, or the injection nozzle may be clogged. On the other hand, if the amount is too small, the resulting molded article may have insufficient rigidity and dimensional stability.
- the amount ratio of the filler in the reaction solution is preferably in the range of 95: 5 to 55:45 in terms of weight ratio, fibrous filler: particulate filler: 80: 20-60: 40 More preferred to be in the range! / ⁇ .
- the amount ratio of the fibrous filler and the particulate filler is within this range, the effect of the present invention becomes more remarkable.
- the metathesis catalyst used in the production method of the present invention is a reaction injection molding method (RIM method). Any known one can be used as long as it can ring-open polymerization the norbornene-based monomer.
- RIM method reaction injection molding method
- metathesis catalysts examples include compounds of Group 5 or Group 6 transition metals in the periodic table.
- Examples of the compounds of Group 5 or Group 6 transition metals in the periodic table include, for example, halides, oxyhalides, oxides, organic ammonium salts, oxyacid salts, and heteropolypolyesters of these transition metals. Examples include acid salts. Among these, organic ammonium salts are more preferable, which are preferably halides, oxyhalogenides, and organic ammonium salts. As transition metals, molybdenum, tungsten and tantalum are preferred, molybdenum and tungsten are more preferred! / ,.
- metathesis catalysts examples of which include tridodecyl ammonium molybdate and tungstate, methyl tricapryl ammonium. And molybdate and tungstate of tri (tridecyl) ammonium, and molybdate and tungstate of trioctylammonium.
- the amount used is usually from 0.01 to 50 midimono relative to 1 mol of norbornene monomer in the reaction solution.
- the girls are 0.1 to 20 midimonore.
- the metathesis catalyst it is also preferable to use a metal rubene complex having a metal element of Group 8 of the periodic table as a central metal.
- a metal carbene complex with a metal atom of Group 8 of the periodic table as the central metal has a carbene compound bonded to the central metal atom, which is a metal atomic energy of Group 8 of the periodic table, and the metal atom (M) and carbene carbon.
- a force rubene compound is a general term for compounds having a carbene carbon, that is, a methylene free radical.
- the metal atom of Group 8 of the periodic table is particularly preferably ruthenium, which is preferably ruthenium and osmium.
- metal carbene complexes include benzylidene (1,3-dimesitylimimi Dazolidine-2-ylidene) (tricyclohexylphosphine) ruthenium dichloride, benzylidene (1,3-dimesitylmimidazolidine-2-ylidene) (tricyclohexylphosphine) ruthenium dichloride, benzylidene (1,3-dimesityl-4) , 5-Dib mouth imidazoline-2-ylidene) (tricyclohexylphosphine) ruthenium dichloride, bis (tricyclohexylphosphine) benzylidene ruthenium dichloride, and the like.
- the amount used is usually 0.001 to 1 millimonore, preferably 0.002 to 0.1 millimole, relative to 1 monomer monoreaction in the reaction solution. It is.
- the amount of the metathesis catalyst used is too small, the polymerization activity is too low, the reaction takes time, and the production efficiency deteriorates. On the other hand, if the amount used is too large, the reaction becomes too violent, and bulk polymerization proceeds before the reaction solution is sufficiently filled in the mold, and the catalyst tends to precipitate and can be stored homogeneously. It becomes difficult.
- the metathesis catalyst may be used by dissolving or dispersing in a small amount of an inert solvent.
- the inert solvent in this case include chain aliphatic hydrocarbon solvents such as pentane, hexane and heptane; fats such as cyclopentane, cyclohexane, methylcyclohexane, decahydronaphthalene, tricyclodecane and cyclooctane.
- Cyclic hydrocarbon solvents aromatic hydrocarbon solvents such as benzene, toluene and xylene; ether solvents such as jetyl ether and tetrahydrofuran;
- a liquid anti-aging agent, a plasticizer or an elastomer may be used as a solvent as long as it does not reduce the activity as a catalyst.
- aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, and alicyclic hydrocarbon solvents that are widely used in industry are preferred.
- Activating agents include alkylaluminum halides such as ethylaluminum dichloride and jetylaluminum chloride; alkoxyalkylaluminum halides in which a part of the alkyl groups of these alkylaluminum halides are substituted with alkoxy groups; organotin compounds; It is done.
- the amount of the activator to be used is not particularly limited, but is usually 0.1 to LOO mol, preferably 1 to 10 mol with respect to 1 mol of the metathesis catalyst used in the whole reaction solution.
- the activity regulator can change the reaction rate, the mixing force of the reaction solution, the time to start the reaction, the reaction activity, and the like.
- Examples of activity regulators in the case of using a transition metal group 5 or 6 transition metal compound as a metathesis catalyst include compounds that have the effect of reducing the metathesis catalyst, and include alcohols, haloalcohols, esters. , Ethers, nitriles and the like can be used. Of these, haloalcohols are preferred because alcohols and haloalcohols are preferred.
- alcohols include n -propanol, n-butanol, n-hexanol, 2-butanol, isobutyl alcohol, isopropyl alcohol, and t-butyl alcohol.
- haloalcohols include 1,3 dichloro-2-propanol, 2-chloroethanol, 1 chlorobutanol and the like.
- Examples of the activity regulator in the case of using a metal carbene complex as a metathesis catalyst include a Lewis base compound.
- Lewis base compounds include Lewis base compounds containing phosphorus atoms such as tricyclopentylphosphine, tricyclohexylphosphine, triphenylphosphine, triphenylphosphite, n-butylphosphine; n-butylamine, pyridine, 4 — Lewis base compounds containing nitrogen atoms such as butylpyridine, acetonitrile, ethylenediamine, N benzylidenemethylamine, pyrazine, piperidine, imidazole, and the like.
- Norbornene substituted with an alkenyl group such as burnorbornene, probe norbornene, and isopropanol norbornene, is a norbornene-based monomer and also serves as an activity regulator.
- the amount of these activity regulators used varies depending on the compound used and is not uniform.
- Examples of the elastomer include natural rubber, polybutadiene, polyisoprene, styrene butadiene copolymer (SBR), styrene butadiene styrene block copolymer (SBS), styrene isoprene styrene copolymer (SIS), and ethylene propylene copolymer.
- SBR styrene butadiene copolymer
- SBS styrene butadiene styrene block copolymer
- SIS styrene isoprene styrene copolymer
- ethylene propylene copolymer examples include enterpolymer (EPDM), ethylene acetate butyl copolymer (EVA), and hydrides thereof.
- the viscosity of the reaction solution can be adjusted by dissolving the elastomer in the reaction solution.
- the impact resistance of the obtained norbornene-based resin molded product and composite molded product can be improved by adding an elastomer.
- antioxidants examples include various plastics such as phenol, phosphorus and amine, and antioxidants for rubber.
- the reaction stock solution is prepared by dividing each component described above into two or more solutions.
- a reaction stock solution (solution A) containing a norbornene-based monomer and an activator and a reaction stock solution (solution B) containing a norbornene-based monomer and a metathesis catalyst are mixed, and the reaction solution is mixed.
- a reaction stock solution (solution C) that contains norbornene-based monomers and does not contain any shift in the metathesis catalyst and activator may be used in combination.
- reaction stock solution (i) containing a norbornene monomer and a reaction stock solution (ii) containing a metathesis catalyst are mixed. By doing so, the reaction solution can be obtained.
- the reaction stock solution (ii) a solution obtained by dissolving or dispersing a metathesis catalyst in a small amount of an inert solvent is usually used.
- the fibrous filler, the particulate filler and the above-mentioned optional components may be contained in any reaction stock solution.
- the fibrous filler and the particulate filler are preferably contained in the reaction stock solution containing a norbornene monomer.
- the fibrous filler is contained in one reaction stock solution selected from the liquid A, the liquid B, and the liquid C, and the reaction is different in the particulate filler.
- reaction stock solution (i) an embodiment in which the fibrous filler and the particulate filler are simultaneously contained in one kind of reaction stock solution (i);
- reaction stock solution (i) As an embodiment, the reaction stock solution (i) containing a fibrous filler and not containing a particulate filler, and the reaction stock solution (i) containing a particulate filler and no fibrous filler are used in combination. Is mentioned.
- reaction stock solution (a) of the present invention is preferable.
- the reaction stock solution ( ⁇ ) of the present invention contains a norbornene monomer, the above-mentioned fibrous filler and particulate filler, and is used in the production method of the present invention. That is, it is preferable that the fibrous filler and the particulate filler are contained in the same reaction stock solution. Specifically, the embodiment (a2) and the embodiment (bl) are preferred.
- the reaction stock solution ( ⁇ ) of the present invention has such properties that the fibrous filler and the particulate filler are contained in the same reaction stock solution, so that sedimentation of the filler is suppressed and storage stability is excellent. Yes.
- the amount of the filler in the reaction stock solution (a) is preferably 20 to 80% by weight, more preferably 30 to 75% by weight, and particularly preferably 40 to 70% by weight in total of the fibrous filler and the particulate filler. %. If the amount of filler is too large, it may settle in the tank or piping during storage.
- the amount ratio of the fibrous filler to the particulate filler in the reaction stock solution (iii) is preferably a weight ratio of 95: 5 to 55:45 for the fibrous filler: particulate filler. 80:20 to 60:40 is more preferable.
- the amount ratio of the fibrous filler to the particulate filler is within this range, the effect of the present invention can be easily obtained, and the storage stability is particularly low with the filler settling particularly small.
- reaction injection molding is performed using the reaction stock solution described above.
- a collision mixing apparatus conventionally known as a reaction injection (RIM) molding apparatus can be used for mixing the reaction stock solution. Then, two or more reaction stock solutions are instantaneously mixed with a mixing head of a RIM machine, the resulting reaction solution is poured into a mold, and bulk polymerization is performed in the mold to obtain the norbornene-based resin molded article of the present invention. can get.
- RIM reaction injection
- dynamic mixers static mixers, etc.
- Other low pressure injectors can also be used.
- the mold used for the reaction injection molding does not necessarily need to be a high-rigidity and expensive metal mold, and is not limited to a metal mold, and a resin mold or a simple mold can be used. This is because reaction injection molding can be performed at a relatively low temperature and low pressure using a low-viscosity reaction stock solution. In addition, it is preferable to replace the inside of the mold with an inert gas such as nitrogen gas before injecting the reaction solution.
- the mold temperature is preferably 10 to 150 ° C, more preferably 30 to 120 ° C, and still more preferably 50 to 100 ° C.
- Clamping pressure is usually in the range of 0.01 ⁇ : LOMPa.
- the bulk polymerization time may be appropriately selected, but is usually 20 seconds to 20 minutes, preferably 20 seconds to 5 minutes after the completion of the injection of the reaction stock solution.
- the norbornene-based resin molded body of the present invention which is a composite molded body formed integrally with the composite member, is obtained.
- “being formed integrally” means that the norbornene-based resin and the composite member are in close contact with each other without being easily peeled off. It can be in close contact, or it can be in close contact through an adhesive layer.
- the composite saddle member used in the present invention is a material that can be placed in a mold and does not have fluidity at the mold temperature during bulk polymerization.
- the material of the composite metal member include inorganic materials such as metal, glass, ceramics, and wood; and organic materials such as rubber and rubber.
- inorganic material metal or glass is preferable.
- organic material rosin is preferred.
- resin polyolefin resin, acrylic resin, ABS resin, vinyl chloride resin, unsaturated polyester resin, melamine resin, epoxy resin, phenol resin, polyurethane resin, polyamide resin, norbornene series Examples include rosin.
- acrylic resin is particularly preferable.
- the shape of the composite member is not particularly limited, and may be a sheet, a plate, a rod, a woven or non-woven fabric, various three-dimensional shapes, and the like.
- an adhesive layer is formed on at least a part of the surface of the composite member that comes into contact with the reaction solution. I should do it.
- the material used to form the adhesive layer should not inhibit the bulk polymerization reaction. If it is not specifically limited, it is preferable to contain a block copolymer of styrene and conjugated gen or a hydride thereof.
- block copolymers include styrene butadiene block copolymer (SB), styrene isoprene block copolymer (SI), styrene butadiene styrene block copolymer (SBS), styrene isoprene styrene.
- SB styrene butadiene block copolymer
- SI styrene butadiene styrene block copolymer
- SBS styrene butadiene styrene block copolymer
- SBIS styrene isoprene styrene
- the composite resin member and the norbornene-based resin are in close contact with each other via an adhesive layer because the adhesiveness between the two is high.
- the molded article of the present invention is obtained.
- the amount of the filler in the molded body of the present invention is preferably 5 to 60% by weight, more preferably 10 to 50% by weight in total of the above fibrous filler and particulate filler.
- the molded body of the present invention is a composite molded body, the above represents the amount of filler in the norbornene-based resin portion excluding the composite rubber member. If the amount of the filler is too large, the impact resistance of the molded product may decrease. On the other hand, if the amount is too small, the molded body may have insufficient rigidity and dimensional stability.
- the amount ratio of the filler in the molded article of the present invention is preferably in the range of 95: 5 to 55:45 in terms of weight ratio of fibrous filler: particulate filler. A range of 80:20 to 60:40 is more preferable.
- the molded product of the present invention is a composite molded product, the above represents the amount ratio of the filler in the norbornene-based resin portion excluding the composite member. When the amount ratio between the fibrous filler and the particulate filler is within this range, the effect of the present invention becomes more remarkable.
- the 50% volume cumulative diameter of the filler is determined by X-ray using a cedy graph (Micromeritix). The particle size distribution was measured by the transmission method.
- the aspect ratio of the filler was determined by measuring the long axis diameter of 100 randomly selected fillers in the optical micrograph, and calculating the number average long axis diameter as the arithmetic average value, and the above 50% volume. It calculated
- reaction stock solution B solution or C solution
- the sedimentation rate of the filler was determined by the following formula 1. The smaller the sedimentation rate, the better the storage stability of the reaction stock solution.
- Sedimentation rate (%) (height of supernatant) Z (height of liquid surface) X 100... Equation 1
- the flexural modulus of the norbornene-based resin molded product was measured according to JIS K 7171.
- the linear expansion coefficient of the norbornene-based resin molded product was measured according to JIS K 7197. However, the test piece was 10 mm long, 5 mm wide, and 4 mm thick.
- Two stainless steel plates are prepared, facing each other, and a silicon packing having a thickness of 4 mm and a width of 15 mm is installed at both ends in the vertical direction and one end in the horizontal direction.
- a simple mold having a space (cavity) of 245 mm in length X 210 mm in width X 4 mm in thickness was produced by sandwiching between stainless steel plates. Then, with the side not covered with silicon packing facing up, this simple mold was set up vertically, and a hole was formed in the lowermost part of one stainless steel plate to form a reaction liquid injection hole.
- a heater wire was attached to the entire surface of the other stainless steel plate so that it could be heated.
- the mold was heated to 80 ° C, and 40.2 parts of Liquid A and 59.8 parts of Liquid B were injected while mixing with a static mixer to start bulk polymerization. At this time, the mixing ratio of liquid A and liquid B is 1: 1 by volume, the amount of fibrous filler injected is 22.5 parts, and the amount of particulate filler is 7.5 parts. .
- E is a test piece fy prepared so that the length direction of the test piece is parallel to the lateral direction of the mold.
- sp is the measured value for the test piece prepared so that the length direction of the test piece is parallel to the vertical direction of the mold, and a is the length direction of the test piece parallel to the horizontal direction of the mold.
- a reaction stock solution (solution B) was obtained in the same manner as in Example 1 except that the amount of the fibrous filler was 42.75 parts and the amount of the particulate filler was 14.25 parts. The amount ratio between the fibrous filler and the particulate filler is 75:25 by weight. The specific gravity of the B liquid thus obtained is 1.28. Table 1 shows the results of measuring the sedimentation rate of the filler for this B liquid.
- Example 1 and Example 1 were used except that the B liquid and the A liquid were used, and the respective usage amounts were A liquid power 3.4 parts and B liquid 56.6 parts.
- a norbornene-based resin molded product was obtained.
- the mixing ratio of liquid A and liquid B injected into the mold is 1: 1 by volume, the amount of fibrous filler injected is 15 parts, and the amount of particulate filler is 5 parts. there were.
- the obtained norbornene-based resin molded product was subjected to bending elastic modulus and linear expansion coefficient in the same manner as in Example 1. Was measured. The results are shown in Table 1.
- a reaction stock solution (liquid B) was obtained in the same manner as in Example 1, except that the amount of the fibrous filler was 138 parts and the amount of the particulate filler was 46 parts.
- the weight ratio of fibrous filler to particulate filler is 75:25 by weight.
- the specific gravity of the liquid B thus obtained was 1.67. Table 1 shows the results of measuring the filler sedimentation rate for this B liquid.
- Example 1 In Example 1, except that the B liquid and the A liquid were used, and the usage amounts thereof were 37.0 parts for the A liquid and 63.0 parts for the B liquid, respectively. Similarly, a norbornene-based resin molded product was obtained. At this time, the mixing ratio of liquid A and liquid B injected into the mold is 1: 1 by volume, the amount of injected fibrous filler is 30 parts, and the amount of particulate filler is 10 parts. . With respect to the obtained norbornene-based resin molded article, the flexural modulus and linear expansion coefficient were measured in the same manner as in Example 1. The results are shown in Table 1.
- a reaction stock solution (Liquid B) was obtained in the same manner as in Example 1, except that the addition of the fibrous filler and the particulate filler was intensive.
- the specific gravity of the B liquid thus obtained was 0.98.
- Example 1 and Example 1 were used except that the solution B and the solution A were used, and the usage amounts of the solution A were 50.0 parts for the solution A and 50.0 parts for the solution B, respectively.
- a norbornene-based resin molded product was obtained.
- the mixing ratio of the liquid A and the liquid B injected into the mold is 1: 1.
- the obtained norbornene-based resin molded body was measured for the flexural modulus and linear expansion coefficient in the same manner as in Example 1. The results are shown in Table 1.
- reaction stock solution composed of 90 parts of dicyclopentagen and 10 parts of tricyclopentagen
- 135 parts of a fibrous filler and 45 parts of a particulate filler were added and mixed by stirring to obtain a reaction stock solution (solution C).
- the fibrous filler and the particulate filler were the same as in Example 1.
- the amount ratio between the fibrous filler and the particulate filler is 75:25 by weight.
- the specific gravity of the liquid C thus obtained was 1.71. Table 1 shows the results of measuring the sedimentation rate of the filler for this C liquid.
- a reaction stock solution (liquid B) was obtained in the same manner as in Example 1, except that the amount of the fibrous filler was 56.5 parts and the particulate filler was not added.
- the specific gravity of the B liquid thus obtained was 1.46. Table 1 shows the results of measuring the sedimentation rate of the filler using this B liquid.
- Example 1 In Example 1 except that the B liquid and the A liquid were used, and the respective usage amounts were set to 0.2 parts of the A liquid power and 59.8 parts of the B liquid. Similarly, a norbornene-based resin molded product was obtained. At this time, the mixing ratio of liquid A and liquid B injected into the mold is 1: 1 by volume, and the amount of fibrous filler injected is 30 parts. The resulting norbornene-based resin molding! In the same manner as in Example 1, the flexural modulus and linear expansion coefficient were measured. The results are shown in Table 1.
- Example 1 In Example 1, except that the B liquid and the A liquid were used, and the usage amounts of the B liquid and the B liquid were 0.2 parts and 59.8 parts, respectively. Similarly, a norbornene-based resin molded product was obtained. At this time, the mixing ratio of liquid A and liquid B injected into the mold is 1: 1 by volume, and the amount of fibrous filler injected is 30 parts. The resulting norbornene-based resin molding! In the same manner as in Example 1, the flexural modulus and linear expansion coefficient were measured. The results are shown in Table 1.
- Comparative Example 4 A reaction stock solution (Liquid B) was obtained in the same manner as in Example 1 except that the amount of the particulate filler was 56.5 parts and the fibrous filler was not added. The specific gravity of the B liquid thus obtained was 1.46. Table 1 shows the results of measuring the sedimentation rate of the filler using this B liquid.
- Example 1 In Example 1, except that the B liquid and the A liquid were used, and the usage amounts thereof were 0.2 parts for A liquid and 59.8 parts for B liquid, respectively. Similarly, a norbornene-based resin molded product was obtained. At this time, the mixing ratio of the liquid A and the liquid B injected into the mold is 1: 1 by volume, and the amount of the particulate filler injected is 30 parts. The resulting norbornene-based resin molding! In the same manner as in Example 1, the flexural modulus and linear expansion coefficient were measured. The results are shown in Table 1.
- the reaction stock solution (iii) of the present invention containing the fibrous filler and the particulate filler is found to have excellent storage stability with less sedimentation of the filler. (Examples 1-4). On the other hand, the reaction stock solution containing only one of the fibrous filler and the particulate filler has a large sedimentation of the filler (Comparative Examples 2 to 4).
- the norbornene-based resin molded article of the present invention containing a fibrous filler and a particulate filler has high rigidity and dimensional stability, and also has rigidity anisotropy. It can be seen that it is small (Examples 1 to 4). On the other hand, a molded body containing no filler or only containing a particulate filler has low rigidity and dimensional stability (Comparative Examples 1 and 4). On the other hand, it contains only fibrous filler! / The molded product with improved bending modulus (rigidity) and linear expansion coefficient in the vertical direction, but with little improvement in the horizontal direction, large rigidity anisotropy and poor dimensional stability. (Comparative Examples 2 and 3).
- a simple mold having a space (cavity) of 245 mm in length X 210 mm in width X 8 mm in thickness was prepared in the same manner as in Example 1 except that a silicon packing having a thickness of 8 mm and a width of 15 mm was used. Then, with the side not covered by the silicon packing facing up, this simple mold was set up vertically, and a hole was formed in the lowermost part of one stainless steel plate to form a reaction liquid injection hole. In addition, a heater wire was attached to the entire surface of the other stainless steel plate so that it could be heated.
- acrylic of 245 mm long ⁇ 210 mm wide ⁇ 4 mm thick A greaves board (paragrass PG SG90 P0004: made of Kurarene) was prepared.
- One side of this acrylic resin board is coated with a 5% toluene solution of polystyrene poly (ethylene Z propylene) block copolymer (Septon 4055: manufactured by Kralene Earth) with a styrene content of 30%.
- polystyrene poly (ethylene Z propylene) block copolymer Septon 4055: manufactured by Kralene Earth
- the composite member having the adhesive layer thus obtained was placed in the mold cavity. Specifically, the composite member was installed so that the surface on which the adhesive layer was not formed was in contact with the stainless steel plate with the heater wire attached. Next, the mold was heated to 80 ° C., and liquids A and B were injected therein to start bulk polymerization. The types and amounts of liquid A and liquid B are the same as in Example 1.
- Mold shrinkage [%] 100- [(length in the longitudinal direction of the composite molding) / (length in the longitudinal direction of the mold cavity) X 100]... Equation 2
- Mold shrinkage (%) 0.3 1.0 0.3 0.3 0.3 Warpage of composite molded body No Yes No No No No Flexural modulus
- a composite molded body was obtained in the same manner as in Example 5 except that the types and injection amounts of Liquid A and Liquid B were the same as in Comparative Examples:! Each characteristic was measured for the obtained composite molded body. The results are shown in Table 2.
- the composite molded body which is the norbornene-based resin molded body of the present invention has small molding shrinkage and no warpage, and is excellent in dimensional stability.
- the composite molded body has high rigidity and small rigidity anisotropy (Example 5).
- the composite molded body containing no filler in the norbornene-based resin part shows large warping and shrinkage (Comparative Example 5).
- the composite molded article containing only the particulate filler in the norbornene-based resin part is not sufficiently improved in rigidity (Comparative Example 8).
- the composite molded body containing only the fibrous filler in the norbornene-based resin part was a composite molded body having high rigidity anisotropy (Comparative Examples 6 and 7).
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US11/884,569 US20080234422A1 (en) | 2005-02-18 | 2006-02-16 | Norbornene-Based Resin Molded Article and Method of Production Thereof |
JP2007503700A JP4944765B2 (ja) | 2005-02-18 | 2006-02-16 | ノルボルネン系樹脂成形体およびその製造方法 |
CN2006800130456A CN101163741B (zh) | 2005-02-18 | 2006-02-16 | 降冰片烯类树脂成型体及其制造方法 |
EP06713866A EP1849832A1 (en) | 2005-02-18 | 2006-02-16 | Norbornene resin molded body and method for manufacturing same |
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JP2005042395 | 2005-02-18 | ||
JP2005-042395 | 2005-02-18 | ||
JP2005-306394 | 2005-10-20 | ||
JP2005306394 | 2005-10-20 |
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WO2006088087A1 true WO2006088087A1 (ja) | 2006-08-24 |
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PCT/JP2006/302725 WO2006088087A1 (ja) | 2005-02-18 | 2006-02-16 | ノルボルネン系樹脂成形体およびその製造方法 |
Country Status (6)
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US (1) | US20080234422A1 (ja) |
EP (1) | EP1849832A1 (ja) |
JP (1) | JP4944765B2 (ja) |
KR (1) | KR20070120092A (ja) |
CN (1) | CN101163741B (ja) |
WO (1) | WO2006088087A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007331378A (ja) * | 2006-05-16 | 2007-12-27 | Cleanup Corp | 複合成形体およびその製造方法 |
JP2011148875A (ja) * | 2010-01-20 | 2011-08-04 | Panasonic Corp | ノルボルネン系樹脂スラリー及びその製造方法、ならびにこのノルボルネン系樹脂スラリーを用いた樹脂モールド型コンデンサ |
JP2015178580A (ja) * | 2014-03-20 | 2015-10-08 | 日本ゼオン株式会社 | 樹脂組成物及びその利用 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007058249A1 (ja) * | 2005-11-18 | 2007-05-24 | Rimtec Corporation | ノルボルネン系樹脂成形体およびその製造方法 |
JP4953795B2 (ja) * | 2006-12-22 | 2012-06-13 | パナソニック株式会社 | 電子部品、及びその作成方法 |
US20130131405A1 (en) * | 2011-11-18 | 2013-05-23 | Metton America, Inc. | Liquid molding resin with nonswelling mica |
EP3162832A4 (en) * | 2014-06-27 | 2018-04-04 | Rimtec Corporation | Gelling promoter |
WO2017069236A1 (ja) * | 2015-10-23 | 2017-04-27 | 宇部マテリアルズ株式会社 | フィラー組成物 |
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JPH05301296A (ja) * | 1991-03-25 | 1993-11-16 | Nippon Zeon Co Ltd | 繊維強化樹脂成形品 |
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GB8827264D0 (en) * | 1988-11-22 | 1988-12-29 | Shell Int Research | Copolymerization of dicyclopentadiene with norbornene derivatives & copolymers obtainable therewith |
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2006
- 2006-02-16 EP EP06713866A patent/EP1849832A1/en not_active Withdrawn
- 2006-02-16 WO PCT/JP2006/302725 patent/WO2006088087A1/ja active Application Filing
- 2006-02-16 CN CN2006800130456A patent/CN101163741B/zh not_active Expired - Fee Related
- 2006-02-16 JP JP2007503700A patent/JP4944765B2/ja not_active Expired - Fee Related
- 2006-02-16 US US11/884,569 patent/US20080234422A1/en not_active Abandoned
- 2006-02-16 KR KR1020077018724A patent/KR20070120092A/ko not_active Application Discontinuation
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JPH05301296A (ja) * | 1991-03-25 | 1993-11-16 | Nippon Zeon Co Ltd | 繊維強化樹脂成形品 |
JPH11322903A (ja) * | 1998-05-15 | 1999-11-26 | Hitachi Chem Co Ltd | 充填材入りシクロオレフィン系重合体成形物の製造法 |
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JP2007331378A (ja) * | 2006-05-16 | 2007-12-27 | Cleanup Corp | 複合成形体およびその製造方法 |
JP2011148875A (ja) * | 2010-01-20 | 2011-08-04 | Panasonic Corp | ノルボルネン系樹脂スラリー及びその製造方法、ならびにこのノルボルネン系樹脂スラリーを用いた樹脂モールド型コンデンサ |
JP2015178580A (ja) * | 2014-03-20 | 2015-10-08 | 日本ゼオン株式会社 | 樹脂組成物及びその利用 |
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JP4944765B2 (ja) | 2012-06-06 |
KR20070120092A (ko) | 2007-12-21 |
JPWO2006088087A1 (ja) | 2008-07-03 |
EP1849832A1 (en) | 2007-10-31 |
US20080234422A1 (en) | 2008-09-25 |
CN101163741B (zh) | 2011-03-02 |
CN101163741A (zh) | 2008-04-16 |
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