WO2003044093A1 - Composition de resine et procede de fabrication de moules - Google Patents
Composition de resine et procede de fabrication de moules Download PDFInfo
- Publication number
- WO2003044093A1 WO2003044093A1 PCT/JP2002/012148 JP0212148W WO03044093A1 WO 2003044093 A1 WO2003044093 A1 WO 2003044093A1 JP 0212148 W JP0212148 W JP 0212148W WO 03044093 A1 WO03044093 A1 WO 03044093A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin composition
- fluoropolymer
- engineering plastic
- molding
- mass
- Prior art date
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Classifications
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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
- C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
- C08L59/02—Polyacetals containing polyoxymethylene sequences only
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/002—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds
- C08G65/005—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens
- C08G65/007—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens containing fluorine
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- 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
- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/28—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type
- C08G2650/46—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type containing halogen
- C08G2650/48—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type containing halogen containing fluorine, e.g. perfluropolyethers
Definitions
- the present invention relates to a resin composition capable of improving the molding processability of engineering plastics and a method for producing a molded body using the above resin composition.
- Polymers that can be molded are usually molded by heating and melting in a molding machine, shaping the resulting melt in a mold or the like, and cooling.
- the molding method include extrusion molding. In this case, the melt is extruded through a barrel of an extruder with a rotating screw into a die and molded.
- the extrusion pressure and the extrusion torque generally increase with an increase in the squeeze between the extrudate and the die when compared between polymers having the same melt fluidity. If the extrusion pressure or torque is too high, it may cause industrial production problems such as the extruder automatically shutting down due to overload exceeding the limit of the extruder.
- the resulting molded product may have poor surface smoothness and gloss. As power supply becomes difficult, it can cause a drop in yield and productivity, which is an industrial problem. .
- processing aids such as melt slats or high torques that limit the extrusion rate of the polymer when used at low concentrations. It is known to be useful for reducing adverse effects.
- U.S. Pat.No. 5,010,130 discloses a resin composition blended with an auxiliary agent, the main component of which is a resin that is difficult to be melt-molded, and the viscosity at 200 ° C. is 4 OOP as.
- Some polytetrafluoroethylene [PTFE] or tetrafluoroethylene [TFE] that is melted at the molding temperature in the case of a crystalline resin and is at least the glass transition point (Tg) in the case of an amorphous resin It is disclosed to use a copolymer of However, this technology is for resins that are difficult to melt mold, and the fluororesin is said to have a melting point below the melting point of the main resin.
- US Pat. No. 3,125,547 discloses the use of a small amount of a fluorocarbon polymer as a continuous replenishment slip agent in the extrusion of hydrocarbon polymers such as low density polyethylene [LDPE]. It is said that fluororesins that are solid and have little or no improvement in the extrusion properties of hydrocarbon polymers.
- LDPE low density polyethylene
- U.S. Pat. No. 4,855,360 uses poly (oxyalkoxy) olefins to improve the flow on the die for the purpose of reducing melt defects in the extrudate, against which the weight ratio l / i iZi o
- a thermoplastic olefin resin composition is disclosed in which a fluororesin is blended at a ratio of 0.005 to 0.2% by weight with respect to the polyolefin resin la composition.
- US Pat. No. 5,464,904 discloses a polyolefin resin and a hydrogen atom Blend a fluororesin with a rate of 2% by weight or less, a melt viscosity of 0.1 x 10 3 to 10 X 10 0 3 poise, and a melting end point temperature (Tm) of 170 to 265 ° C. Is disclosed.
- US Pat. No. 5547761 discloses a technique for coating polyolefin with FEP having an HFP index of 6.4 to 9.0 and a Tm of 180 to 255 ° C.
- U.S. Pat.No. 5707569 discloses a method for extruding a polyolefin composition having a divalent or trivalent metal ion and an organic or inorganic anion for the purpose of eliminating the action of Ca2 +. It is disclosed that a resin is blended.
- U.S. Pat.No. 5,32,368 discloses a nylon 66 with FEP or irradiated PTFE as a blend of a melt-difficult polymer and a fluoropolymer processing aid to which 0.002 to 0.5% by weight of this polymer is added.
- the blend is illustrated.
- this fluoropolymer has a specific polar functional group such as one COOH, -S 0 3 H or the like or one COF at the chain end in a ratio of at least 100 per million carbon atoms.
- the purpose of the present invention is to improve molding processability such as extrusion pressure and extrusion torque in molding process of meltable engineering plastic instead of resin that is difficult to be melt-molded as shown in the above patent or polyolefin resin.
- An object of the present invention is to provide a resin composition that can stably obtain molding processability in extrusion pressure, extrusion torque and the like and can be easily crystallized.
- the present invention is a resin composition obtained by blending an engineering plastic and a fluorine-containing polymer, wherein the fluorine-containing polymer is a total of the mass of the engineering plastic and the mass of the fluorine-containing polymer.
- the fluorine-containing polymer is preferably obtained by polymerization using tetrafluoroethylene.
- the engineering plastic is preferably polyamide or polyetheretherketone.
- the resin composition is preferably used as a molding material.
- the present invention is also a method for producing a molded body characterized in that the resin composition is melted and molded by extrusion molding or injection molding.
- Figure 1 shows the stress-strain curve [S-S curve] of the tensile test using the molded body obtained in Comparative Example 14 in graph (a), and the graph (b) in Comparative Example 15 This is an SS curve of a tensile test using a molded body.
- FIG. 2 is an SS curve of a tensile test using the molded body obtained in Example 16.
- the resin composition of the present invention is obtained by blending a fluoropolymer and an engineering plastic.
- the fluorine-containing polymer is a polymer in which fluorine atoms are bonded to all or part of carbon atoms constituting the main chain of the polymer.
- a fluorine-containing polymer as a monomer component, for example, a perfluoromonomer such as tetrafluoroethylene [TFE], hexafluoropropylene [HF P], perfluoro (alkyl biether) [PAVE], etc.
- TFE tetrafluoroethylene
- HF P hexafluoropropylene
- PAVE perfluoro (alkyl biether)
- Examples thereof include polymers obtained by polymerizing using one or more compounds.
- the perfluoromonomer is a monomer whose main chain is composed of carbon atoms and fluorine atoms and, optionally, oxygen atoms, and has no hydrogen atoms bonded to carbon atoms in the main chain.
- Perfluorovinyl monomer such as HFP; PAVE monomer such as perfluoro (propyl vinyl ether) [PPVE].
- the oxygen atom is usually ether oxygen.
- the fluoropolymer examples include perfluoropolymers such as polytetrafluoroethylene [PTFE], TFEZHFP copolymer [FEP], and TFE / PA VE copolymer [PFA] in terms of molecular structure. It is done.
- the perfluoropolymer is a polymer obtained by polymerization using only the perfluoromonomer as a monomer component. That is, the fluorine-containing polymer includes those in which the repeating unit consists only of the perfluoromonomer, and the terminal has a structural unit derived from an initiator, a chain transfer agent, or the like.
- the above PTFE has a low molecular weight PTFE having a weight average molecular weight of usually 1,000,000 or less, preferably 100,000 or less, and for example, JP-A-4-154842 and JP-A-5-279579.
- fluorine-containing polymer examples include (co) monomer essential for the copolymer, but also a fluorine-free butyl monomer such as ethylene [Et] and propylene [Pr]; chlorotrifluoroethylene [ CTFE] and other fluorovinyl monomers; vinylidene fluoride “Vd F”, fluorinated bur, trifluoroethylene, etc.
- a small amount of one or two or more types of comonomers such as monomers having functional groups such as hydroxyl groups and carbonyl groups, and monomers having a cyclic structure other than perfluorinated monomers (5% by mass or less, preferably 1% by mass or less, more preferably 0.5% by mass or less) of the total amount of the monomer components.
- the cyclic structure is not particularly limited, and examples thereof include cyclic ether structures such as a cyclic acetal structure.
- at least two carbon atoms constituting the cyclic ether structure are included in the main chain of the fluoropolymer. It is a part.
- a small amount of a comonomer in addition to the (co) monomer essential for the copolymer as a monomer component for example, a small amount of PAVE such as P PVE is used.
- PAVE such as P PVE
- FEP FEP obtained by copolymerization.
- the comonomer for copolymerizing the small amount is preferably 5% by mass or less, more preferably 1% by mass or less, and 0.5% by mass or less of the total amount of the monomer components. Further preferred. If it exceeds 5% by mass, the desired copolymer properties may not be obtained.
- the fluoropolymer may be a non-melt-moldable fluororesin such as PTFE or a melt-moldable fluororesin such as FEP or PFA in terms of meltability, elasticity, use, and the like.
- fluoropolymer 1 type (s) or 2 or more types can be used among the said perfluoro polymers.
- the fluoropolymer is preferably the perfluoropolymer, more preferably the fluoropolymer that is a melt-formable fluororesin, and more preferably FEP and PFA.
- the fluoropolymer may contain TFE as a monomer component from the viewpoint of enhancing the formability of the resin composition of the present invention, although it varies depending on the application.
- a resin containing TFE is preferred.
- Those containing TFE as the monomer component are those containing PTFE.
- the fluoropolymer is obtained by polymerizing a monomer component containing TFE, the perfluoromonomer described above is different from TFE; body ;
- Other fluorine-containing vinyl monomers other than perfluoromonomer obtained by superposing monomers such as monomers having a functional group such as a hydroxyl group and a carbonyl group, and monomers having a cyclic structure. May be used.
- the fluorine-containing polymer is preferably present at the end of the main chain or at the side chain and has few polar functional groups that have reactivity with the engineering plastic.
- the polar functional group having reactivity with the engineering plastic is not particularly limited, and examples thereof include 1 COF, 1 COOM, 1 S 0 3 M, 1 OS 0 3 M, and the like.
- M represents a hydrogen atom, a metal cation, or a quaternary ammonium ion. More preferably, the fluoropolymer has substantially no polar functional group having reactivity with the engineering plastic.
- the phrase “having substantially no polar functional group” means that the polar functional group does not function as a polar functional group even when the polar functional group is slightly present at the main chain end or side chain. Yes, to the extent that it does not participate in the reaction with the above engineering plastics.
- the number of polar functional groups that the fluoropolymer can have per 100,000 carbon atoms is 50 or less, preferably 30 or less, and more preferably 10 or less.
- the fluorine-containing polymer does not substantially have a polar functional group having reactivity with the engineering plastic, so that the engineering can be performed at the time of preparing or molding the resin composition of the present invention described later. Reactions such as hydrolysis of plastics can be suppressed, and the original characteristics of engineering plastics can be fully utilized.
- the fluoropolymer since the fluoropolymer has substantially no polar functional group, the fluoropolymer reduces friction with the engineering plastic on the die surface, screw surface, barrel inner wall, etc. of an extrusion molding machine, for example. Since the lubricity is not hindered, the extrusion pressure and the extrusion torque can be reduced and their fluctuations can be reduced, and the molding processability of the resin composition of the present invention can be improved.
- the fluorine-containing polymer has substantially no polar functional group, but is present in a portion made of a metal or metal oxide on the surface of the molding machine, and has a lubricating property against the flow of the engineering plastic. Demonstrate through time.
- the fluorine-containing polymer can be located on the surface of the metal or metal oxide because of the interfacial tension, and what is phase-separated depends on the force to reduce the interface with the partner component even a little. It is considered a thing. Therefore, the fluorine-containing polymer does not need to have a polar functional group by itself if it is stably supplied.
- the number of the polar functional groups possessed by the fluoropolymer can be determined by, for example, the method described in US Pat. No. 5,13,3,368. That is, using a film obtained by compression molding the fluoropolymer, the absorbance was measured with an infrared spectrophotometer, and the calibration factor (CF) and force determined by measuring the model compound containing the polar functional group were measured. From the following formula, it is obtained as the number of terminal groups per 1 million carbon atoms of the fluoropolymer. Suction X CF
- the wavelength (m) of the polar functional group and the calibration factor of the model compound are, for example, 5.3 1 ju m, 4 for 1 COF, respectively.
- the fluorine-containing polymer can be synthesized by polymerizing the monomer components using usual polymerization methods such as emulsion polymerization, suspension polymerization, solution polymerization, bulk polymerization, and gas phase polymerization. it can.
- a chain transfer agent may be used.
- the chain transfer agent is not particularly limited.
- Methanol is preferred.
- the above chain transfer agent can be suitably used, and in the case of emulsion polymerization, the polar functional group is used at the chain end.
- a polymer having the above-mentioned polar functional group can be eliminated by subjecting this polymer to treatment such as steam treatment to stabilize the chain ends.
- the polar functional group can be converted to one CF 3 or one CONH 2 by, for example, fluorine gas [F 2 ] treatment or ammonia treatment, and to one CF 2 H by the above steam treatment or hydrogen treatment. You can also Therefore, the fluoropolymer may have one CF 3 , one CONH 2 , one CF 2 H, or the like.
- One CF 3 , one CONH 2 , one CF 2 H and the like are different from the above polar functional group.
- suspension polymerization a polymer having substantially no polar functional group can be obtained without performing these treatments.
- the melting point of the fluoropolymer is not particularly limited. However, since the polymer is preferably already melted at the temperature at which the engineering plastic used in the molding machine melts, the processing temperature of the engineering plastic used below Preferably, the temperature is lower than the melting point of the engineering plastic used.
- the fluoropolymer preferably has a melting point of 200 ° C or higher. Since the resin composition of the present invention generally uses an engineering plastic having a high melting point, a fluorine-containing polymer having a melting point of 200 ° C. or higher can be used. The fluoropolymer preferably has a melting point of 240 ° C. or higher. The melting point of the above fluoropolymer may be 350 ° C or lower as long as it is 200 ° C or higher.
- the engineering plastic blended with the fluoropolymer in the resin composition of the present invention usually has excellent properties such as heat resistance, high strength, and high dimensional stability.
- Resin that can be used as an alternative material for metals for example, resin that can be used for materials that are mainly strongly required for mechanical properties such as machinery, equipment parts, electrical and electronic parts, etc. Is included.
- the engineering plastic is a high-performance plastic suitable for structural members and mechanical members, and is mainly used for industrial purposes, and does not include those used for textiles. .
- the above engineering plastics have a heat resistance of 10 o ° c or more, a tensile strength of 49 MPa (5 kgf-mm “ 2 ) or more, and a flexural modulus of 2 GP a (2 OO kgf-mm” 2 ) That's it. Without these characteristics, it cannot be used suitably for normal applications as engineering plastics that require mechanical strength at high temperatures.
- those having a flexural modulus of 2.4 GPa (240 kgf 'mm 2 ) or more are preferably used.
- the above-mentioned heat resistance of 10 ° C or higher means that the melting point in the case of a crystalline resin and the glass transition point in the case of an amorphous resin are not less than 100 ° C and less than 10 ° C. It means that the mechanical strength does not deteriorate at the temperature of.
- the deflection temperature under load (DTUL; ASTM D 648) is usually used.
- the deflection temperature under load is the temperature at which the test bar obtained by using the resin to be measured is heated by applying a load of 1.82 MPa or 0.45 MPa and the test bar begins to deform.
- the above engineering plastics usually have a heat resistance of 150 ° C or higher, and include those called special engineering plastics or super engineering plastics (super engineering plastics).
- the tensile strength is the maximum stress until it breaks due to the tensile load, and is the value obtained by dividing the maximum load by the original cross-sectional area of the test piece.
- the tensile strength is determined by a method based on ASTM D 638-00 (2000).
- the above engineering plastics usually have a standard composition of raw resin and the above-mentioned tensile strength is 49 to 20 OMPa as data without reinforcing material.
- the flexural modulus is 4 points and 4 points. This is the elastic modulus calculated using the load-deflection curve obtained for the specimen in the bending test.
- the flexural modulus is obtained by performing a method according to ASTM D 790-00 (2000).
- the flexural modulus is 2 to 7 GPa as a standard composition of raw resin without reinforcing material.
- the lower limit of the flexural modulus is more preferably 2.4 GPa.
- the resin composition of the present invention is used for melt molding as described later, it is a thermoplastic resin as a matter of course.
- the above-mentioned engineering plastic is usually a plastic obtained by polycondensation or ring-opening polymerization such as polyamide [PA], polyester or polyether; carbonyl group such as formaldehyde such as polyacetal [POM]. Plastic obtained by polymerization; or a certain type of bulle polymer described later.
- the engineering plastic is not particularly limited as long as it has these properties.
- nylon 6, nylon 11 1, nylon 12, nylon 46, nylon 66, nylon 6 10, nylon 61 2, nylon MX PA such as D 6
- Polyesters such as polyethylene terephthalate [PET], polybutylene terephthalate [PBT], polyarylate, aromatic polyester (including liquid crystal polyester), polycarbonate [PC], etc .
- polyacetal [PO M] Polyethers such as dilenoxide [PPO], modified polyphenylene ether, and polyether ether ketone [PEEK]
- Polyamides such as polyamino bismaleimide [PAI]; Polysulfone [PSF], polyether sulfone [PES], etc.
- Polysulfone tree In addition to certain vinyl polymers such as ABS resin, poly 4-methylpentene 1 (TPX resin), polyphenylene sulfide [PP S], polyketone sulfide, polyether imide, polyimide [PI] and the like.
- the nylon MX D 6 is a crystalline polycondensate obtained from metaxylene diamine (MX D) and adipic acid. Of these, PA and PEEK are preferred.
- the engineering plastic may be made of a polymer having a phenylene group in the skeleton of the main chain from the viewpoint of excellent heat resistance.
- the engineering plastic made of a polymer having a olefin group include, for example, nylon MXD 6 and the like among the PAs described above; Ethylene terephthalate [PET], polybutylene terephthalate [PBT], polyarylate, aromatic polyester (including liquid crystalline polyester), etc .; among the above-mentioned polyethers, polyphenylene oxide [PPO], modified polyphenylene ether, polyether ether Examples include ketones [PEEK] and the like; polysulfone resins such as polysulfone [PSF] and polyethersulfone [PES]; polyaminobismaleimide, ABS resin, and polyphenylene sulfide [PPS].
- the engineering plastic is preferably made of a polymer having no phenylene group from the viewpoint of excellent toughness and fatigue resistance.
- Examples of engineering plastics made of a polymer that does not have a phenylene group include, for example, nylon 6, nylon 11 1, nylon 12, nylon 46, nylon 66, nylon 6 10, nylon 6 1 2 And the like, and the above-mentioned polyacetals; poly 4-methylpentene 1 (TPX resin) and the like.
- TPX resin poly 4-methylpentene 1
- 1 type (s) or 2 or more types can be used.
- the engineering plastics can be synthesized according to each type, for example, by a conventionally known method.
- the fluoropolymer is 0.005 to 1% by mass of the total of the mass of the engineering plastic and the mass of the fluoropolymer. If the fluorinated polymer is less than 0.005% by mass, the extrusion pressure and the extrusion torque are insufficiently reduced. If the fluorinated polymer exceeds 1% by mass, the resulting molded product becomes opaque. In addition to being cloudy, the effect corresponding to the increased amount of the above-mentioned fluoropolymer cannot be obtained so much.
- 0.01% by mass of the total mass of the engineering plastic and the mass of the fluoropolymer is a preferable lower limit, and 0.5% by mass is a preferable upper limit.
- a combination of the fluoropolymer and the engineering plastic is not particularly limited, but a combination of PTFE, FEP and / or PFA and an engineering plastic made of a polymer having a phenylene group; FEP and a phenylene group Combinations with engineering plastics that do not have any are preferred.
- the combination of the fluoropolymer and the engineering plastic is not particularly limited.
- the resin composition of the present invention may be blended with other components, if necessary, together with the fluoropolymer and the engineering plastic.
- the other components are not particularly limited.
- whisker such as potassium titanate, glass fiber, asbestos fiber, carbon fiber, other high-strength fiber, reinforcing material such as glass powder; mineral, flake, etc.
- Stabilizers such as silicone oil and molybdenum sulfide; pigments; conductive agents such as carbon black; impact resistance improvers such as rubber; other additives and the like can be used.
- the method for preparing the resin composition of the present invention is not particularly limited.
- a conventionally known method can be used.
- the above-mentioned fluorine-containing polymer and the above-mentioned engineering plastic are mixed at the above-mentioned mixing ratio.
- the like, and if necessary, the above-mentioned other components are added and mixed, and if necessary, the mixture is melt-kneaded under heating.
- the other components may optionally be previously added to and mixed with the fluoropolymer and Z or the engineering plastic, or the fluoropolymer and the engineering plastic are blended. You may add when you do.
- the fluorine-containing polymer and the engineering plastic only have to have a blending ratio within the above range when being molded using the obtained resin composition of the present invention. Accordingly, the blending is not particularly limited.
- a method of blending the fluoropolymer and the engineering plastic so that the blending ratio is within the above range from the beginning, or first, the content of the fluoropolymer The composition (1) was prepared by adding and mixing the fluoropolymer, the engineering ring plastic, and the other components used as necessary so that the blending ratio was higher than the blending ratio in the above range.
- the fluoropolymer of the engineering plastic is added to the composition (1) before the molding process or at the time of the molding process so as to prepare the composition (2) so that the ratio to the above range is within the above range. Is mentioned.
- the composition (1) may be referred to as a masterbatch, and the fluoropolymer in the composition (1) is composed of the mass of the engineering ring plastic and the above-mentioned composition. It is preferably more than 0.05% by mass of the total of the fluoropolymer and 20% by mass or less, and a more preferable lower limit is 1% by mass, and a more preferable lower limit is a 2 wt%, more preferably upper limit is 1 0 mass 0/0.
- the composition (2) may be referred to as a premix.
- the mixing method is not particularly limited.
- the mixing can be performed under normal conditions using a mixer such as various mills that are usually used for mixing a resin composition such as a molding composition.
- a mixer such as various mills that are usually used for mixing a resin composition such as a molding composition.
- the particles made of the fluoropolymer are evenly dispersed among the particles made of the engineering plastic
- the resulting resin composition of the present invention is molded, molding such as reduction in extrusion torque and extrusion pressure is performed. Since the effect of improving workability tends to be exhibited satisfactorily, mix well so that the particles made of the fluoropolymer adhere almost uniformly to the surface of each particle made of the engineering plastic. It is preferable.
- the above “compounding” means mixing an engineering plastic and a fluorine-containing polymer, or preparing a masterbatch before preparing a premix.
- the above blending may be performed by melting (melting and kneading) the engineering plastic and Z or the fluoropolymer, or by mixing these materials without melting, for example, by a mill.
- the engineering plastic and the fluoropolymer may be powder, granule, pellet, etc., respectively, but in order to make the fluoropolymer exist efficiently and uniformly on the surface of the engineering plastic (the pellet),
- the engineering plastic is preferably a pellet, and the fluoropolymer is preferably a powder.
- the mixing is preferably performed without melting the engineering plastic and the fluorine-containing polymer.
- the engineering plastic and the fluoropolymer both of which are powders
- the engineering plastics and the pellets both of which are pellets
- the fluorine-containing polymer can be present between the engineering plastic and the molding machine more efficiently than mixing the fluorine polymer without melting.
- the engineering plastic and the fluoropolymer may be in any form such as powder, granule, pellet, etc.
- the engineering plastic may be a pellet
- the fluoropolymer is It may be a pellet or a powder.
- the fluoropolymer is preferably a powder from the viewpoint that the mixing can be performed sufficiently uniformly.
- the particles composed of the fluorine-containing polymer attached to the surface of the engineering plastic are melted and shaped from the stage of starting to melt the resin composition, particularly during the molding process of the resin composition of the present invention to be obtained.
- the presence of a large number of the resin composition on the surface inside the machine that is in contact with the resin composition sufficiently exerts a lubricating action and allows the resin composition to be smoothly transferred in the molding machine.
- molding processability is improved, such as enabling a significant decrease in extrusion torque and extrusion pressure.
- the surface inside the machine with which the resin composition comes into contact is a screw in a melt extrusion part, a barrel around the screw that stores and rotates the screw, and an extrusion destination.
- the surface of a die or the like is a screw in a melt extrusion part, a barrel around the screw that stores and rotates the screw, and an extrusion destination.
- the compound obtained by the above compounding may be melted by heating and kneaded.
- the heating is usually performed at a temperature equal to or higher than the melting point of the engineering plastic so that the engineering plastic is melted and the particles made of the fluoropolymer are uniformly dispersed in the melt. It is preferable.
- the fluoropolymer is present on the surface of the pellet and the like, and is also present inside the pellet and the like depending on the concentration. Therefore, the particles comprising the above-mentioned fluoropolymer are placed in the molding step of the resin composition of the present invention obtained, particularly after the start of melting of the pellets.
- the interaction between each molecule constituting the engineering plastic and between the molecules in the molecule is reduced to prevent these blocking, and the engineering plastic.
- the above resin composition comprising the above engineering plastics can be easily transferred in the molding machine. As a result, it is thought to contribute to the improvement of molding processability, such as reducing the extrusion torque and extrusion pressure.
- the resin composition of the present invention thus obtained may be appropriately adjusted in particle size as necessary, particularly when it is a powder such as a blended product obtained by mixing.
- the resin composition of the present invention may be in any form such as powder, granule, pellet and the like.
- the resin composition of the present invention thus obtained can be used as a molding material.
- the resin composition of the present invention can improve molding processability such as reduction in extrusion torque and extrusion pressure, as described above, by blending the above-mentioned fluoropolymer into the above-mentioned engineering plastic, It can be easily plasticized. Therefore, the resin composition has improved thermal stability, and can be easily crystallized in a crystalline resin. Since the resin composition has improved thermal stability, it does not deteriorate during molding and can stabilize moldability. Since the resin composition can be easily crystallized, the moldability is good even when the temperature of the die or mold is low during the molding process, and the resin composition is rapidly cooled when taken out from the mold. However, since crystals tend to grow, the shape of the resulting molded body is not easily lost, and the molding cycle time can be shortened.
- the “easy crystallization” may be referred to as “easy crystallization”.
- the surface layer of the resin molded product undergoes a large resistance at the interface with the mold during flow.
- the orientation of the molecules inside (inner layer) of the resin molding is small.
- the state of crystallization differs due to the difference in cooling rate between the surface layer and the inside, and a large residual strain may be produced inside the resin molded body.
- the resin molded body is large between the surface crystal and the internal crystal due to the effects of the orientation and the difference in cooling rate and residual strain.
- a peak as shown by A in the graph (a) in Fig. 1 may occur before the yield point.
- Such a resin molded body is usually subjected to a so-called annealing treatment in which the residual strain is removed by heating for a predetermined time at a temperature at which the residual strain can be sufficiently released at a temperature not lower than the glass transition point.
- annealing treatment in which the residual strain is removed by heating for a predetermined time at a temperature at which the residual strain can be sufficiently released at a temperature not lower than the glass transition point.
- a resin molded product obtained by using nylon 66 without adding processing aid shows an SS curve as shown in the graph (a) of FIG.
- the resin molded body shows an SS curve in which the peak before the yield point disappears.
- the resin molded body has a thickness of 1 to 2 hours per 1 cm, for example, about 30 to 48 hours for a large resin molded body, 100 °
- a similar molded body can be obtained by removing residual strain by heating at a temperature of about C.
- the resin composition of the present invention is obtained by blending the fluoropolymer with the engineering plastic, as described above, which facilitates crystallization and improves the fluidity during molding.
- the above-mentioned residual strain can be reduced in the molded body, and the annealing treatment can be shortened or omitted in the manufacturing process of the molded body. Accordingly, the equipment can be simplified and the manufacturing process can be simplified. be able to.
- the tensile test is a test performed in accordance with AS TM D 6 3 8, and the S—S curve is measured using a universal testing machine (Instron 4 3 0 2) according to the tensile test method. It is a curve obtained by measuring.
- the reason why the resin composition of the present invention has an annealing effect without having a yield point peak in the SS curve as in the case where the annealing treatment is performed as described above is not clear. Can be guessed. As described above, since the resin molded body usually has different resin orientation and cooling rate between the skin layer (surface layer) and the inner layer at the time of molding, residual distortion tends to occur. However, it is considered that the resin composition of the present invention is less likely to be distorted because it rapidly crystallizes before the difference in molding between the skin layer and the inner layer during molding. When the resin composition of the present invention is obtained by blending the above-described master batch, crystallization can be facilitated and the annealing effect can be further improved. The above crystallization and annealing effects have not been known as the effects of processing aids.
- the resin composition of the present invention When the resin composition of the present invention is obtained using a master batch, the resin composition has the above-described easy crystallization and the above-mentioned annealing effect, and further allows the resin to be smoothly transferred in the molding machine. Both an effect as an auxiliary agent and an effect as an internal auxiliary agent that prevents melt fracture can be achieved.
- As a processing aid conventionally, it has either an effect as the external aid or an effect as the internal aid and has not been obtained.
- the fluoropolymer is present on the surface of the above-described pellet and the like, and is also present in the inside of the pellet. It is considered that both the effect as the external auxiliary agent and the effect as the internal auxiliary agent can be expressed in a balanced manner.
- the composition (1) of the present invention is obtained by blending an engineering plastic (A) and a fluorine-containing polymer, and the fluorine-containing polymer contains the mass of the engineering plastic (A) and It is 1 to 10% by mass of the total mass of the fluoropolymer. If it is less than 1 mass ° / o, the amount of the fluoropolymer in the composition (2) described later is too small, and the above-described effects cannot be obtained, which is not preferable. If it exceeds 10% by mass, the resulting molded product may become opaque or cloudy, and the effect corresponding to the increased amount of the above-mentioned fluoropolymer cannot be obtained so much, which is uneconomical.
- fluorine-containing polymer examples include the same fluorine-containing polymers described for the resin composition described above, and a perfluoropolymer is preferable.
- the composition (1) is prepared by adding the engineering plastic (B) to the yarn composition (1) in the same manner as described for the resin composition. It may be a thing.
- the engineering plastic (A) is in the composition (1), and the engineering plastic (B) is added to the composition (1). Both are conceptually different
- the engineering plastic (A) is the same as the engineering plastic described above, and the engineering plastic (B) is the same as the engineering plastic described above. There is a point.
- the engineering plastic (A) and the engineering plastic (B) may be the same or different as the types of engineering plastic actually used, but are usually the same.
- the fluorine-containing polymer is 0.05 to 1% by mass of the total of the mass of the engineering plastic (A), the mass of the engineering plastic (B) and the mass of the fluorine-containing polymer.
- the lower limit is more preferably 0.1% by mass
- the upper limit is more preferably 0.5% by mass. / 0 .
- the reason why the above range is preferable is the same as that described for the above resin composition.
- the composition (2) was obtained by adding the engineering plastic (B) to the composition (1) as described for the composition for obtaining the resin composition. And the resin composition of the present invention as described above, because it has the engineering plastic (A), the engineering plastic (B) and the fluoropolymer in an amount within the above range.
- the method for producing a molded article of the present invention is characterized by using the above resin composition.
- the method for producing a molded body includes introducing the resin composition into a molding machine such as a screw extruder.
- the production method after being charged into the molding machine is not particularly limited as long as it is heat-melt molding.
- the resin composition charged into a molding machine such as a screw extruder is heated to the molding temperature.
- a conventionally known method such as a method of obtaining a molded product of a desired shape by pressurizing as necessary and extruding the molten resin composition onto a die of a molding machine or injecting it into a mold. Method can be used.
- the resin composition of the present invention is melted in a heating part in a molding machine to form a melt, and is then transferred from the heating part to a cooling part and molded.
- the resin composition of the present invention can stably improve the transportability of the melt from the heating section to the cooling section in the molding machine. The moldability can be improved.
- the particles made of the fluoropolymer in the resin composition of the present invention are almost uniformly attached to the surface of the engineering plastic pellet or the like. It is thought that it melts before engineering plastics. As described above, when the fluoropolymer is a powder and / or has a melting point lower than that of the engineering plastic, it tends to melt before the engineering plastic. Accordingly, the lubricating action of the fluoropolymer can be sufficiently exhibited in the molding machine.
- the heating section in the molding machine is usually a melt extrusion section, and this melt extrusion section usually has a screw and a barrel, and the inside of the barrel is heated by a heater around the barrel.
- the resin composition is heated.
- the molding processability is obtained by significantly reducing the extrusion torque and the extrusion pressure. That is, in the case of extrusion molding, although depending on the composition and molding conditions of the resin composition, the extrusion torque can be reduced to 20 to 80% of the value when the fluoropolymer is not blended. Can be reduced to 40 to 90% of the value when the fluoropolymer is not self-assembled.
- the method for producing the molded body is not particularly limited, and examples thereof include extrusion molding, injection molding, mold molding, and rotational molding.
- the molded body production method is preferably extrusion molding, injection molding, mold molding, rotational molding and the like, and among them, extrusion molding or injection molding is preferable. Extrusion molding is preferred in order to effectively exhibit the molding processability.
- the extrusion molding is a method in which the resin composition of the present invention heated and melted in an extruder is continuously extruded from a die and molded.
- the injection molding is a method in which the resin composition of the present invention heated and melted in an injection molding machine is pressure-filled into a mold having one end closed and molded.
- the extrusion molding and the injection molding are performed by inflating a parison prepared in advance from a resin composition heated and melted by using air pressure or the like in a mold and closely contacting the mold. Does not include the blow molding method.
- Various conditions relating to the molding machine in the method for producing a molded body are not particularly limited, and can be performed, for example, as conventionally known.
- the molding temperature is usually a temperature higher than the melting point of the engineering plastic used. If the molding temperature is within the above range, it is usually a temperature lower than the lower one of the decomposition temperature of the fluoropolymer and the decomposition temperature of the engineering plastic. An example of such a molding temperature is 2500 to 400 ° C.
- the molding temperature may be referred to as an extrusion temperature in the case of extrusion molding.
- molding by the said molded object manufacturing method can be set as various shapes, such as coating
- the use of the molded body is not particularly limited, and depends on the type of engineering plastic used. For example, it is suitably used for mechanical properties such as mechanical properties and heat resistance that is strongly required.
- Applications of the molded body include, for example, various machines and equipment such as space equipment; equipment parts such as gears and cams; electrical and electronic parts such as connectors, plugs, switches, and wire enamel; automobiles, aircraft, etc. Products or parts thereof; decorative plates; various films such as magnetic tape, photographic Finolem, gas separation membranes; optical materials such as lenses, compact discs, optical disc substrates, safety glasses; tableware such as beverage containers; Medical supplies; other various industrial parts.
- the present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.
- the blending amount (mass / 0 ) of the fluoropolymer is based on the total amount of the fluoropolymer and the engineering plastic.
- a 0.1 mm thick polymer film obtained by compression-molding the FEP copolymer obtained above at 300 ° C was measured using an FT IR spectrophotometer. As a result of examining the number of terminal groups, all polar functional groups contained only traces at the end of the polymer chain, and one million COOH groups per million carbon atoms, and no other polar functional groups were found.
- a FEP copolymer was obtained in the same manner as in Synthesis Example 1 except that P PVE was not used.
- the mass ratio of TFE: HF P was 86.3: 1 3.7, and the MFR value was 18.5 g / 10 min.
- Synthesis Example 3 Synthesis of low molecular weight PTFE
- the polymer concentration of the obtained latex was 15.8% by mass, and the number average particle diameter of the polymer was 0.18 / m. After this latex is coagulated and washed, the polymer powder is dried at 150 ° C for 18 hours. It was. The melt viscosity of the obtained powder at 380 ° C. was 2.0 ⁇ 10 5 pois, the melting point was 327 ° C., and the number average particle size was 5 m.
- T F E—H F P was continuously supplied so that the pressure in the system was maintained at 4.2 MPaG.
- a TFE-HFP mixed gas was supplied during the reaction so that the amount of the FEP copolymer obtained was 20% by mass of the dispersion.
- Example 3 Molding was performed in the same manner as in Example 1 except that the screw speed was 80 rpm. Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed. Example 3
- Example 4 Molding was performed in the same manner as in Example 1 except that the FEP copolymer obtained in Synthesis Example 2 was used. Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed. Example 4
- Example 5 Molding was performed in the same manner as in Example 1 except that the low molecular weight PTFE obtained in Synthesis Example 3 was used instead of the F E P copolymer. Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed.
- Example 5
- Example 6 It was molded in the same manner as in Example 1 except that nylon 66 was replaced with C y 1 ane X 1 200 (manufactured by Hoec h st -C len e es e) instead of Z y te 1-42. Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed.
- Example 6
- Nylon 46 instead of nylon 66 (product name: Stanyl l 441, manufactured by DSM Engineering Plastics, Inc.), screw Other than setting the rotation speed to 72 rpm and the extrusion temperature to 281 ° C was molded in the same manner as in Example 1.
- Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed.
- the low molecular weight PTFE obtained in Synthesis Example 3 is blended in the amounts shown in Table 1, PEEK (trade name: PEEK 450, manufactured by ICIV ictrex C or.) Is used instead of nylon 66, and the screw speed is 72 rpm. Molding was performed in the same manner as in Example 1 except that the extrusion temperature was set to 360 ° C. Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed.
- Example 10 L 2
- the FEP copolymer obtained in Synthesis Example 4 was blended in the amounts shown in Table 1, and instead of nylon 66 PEEK (trade name: PEEK 450, manufactured by ICIV ictrex Corp.) was used in the same manner as in Example 1 except that the screw speed was 72 rpm and the extrusion temperature was 360 ° C. Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed. Comparative Examples 1-12
- Table 1 shows the extrusion torque, extrusion pressure, and extrusion speed.
- the test method was based on ASTM D 638, and was measured using a universal testing machine (Instron 430 2).
- the measurement conditions were a tensile speed of 5 mm / ni in and a chuck distance of 1 15 mm.
- the tensile elongation was calculated from the amount of crosshead movement.
- test method was based on the JIS K71 1 2 A method (underwater displacement method) and was measured using an analytical balance meter H33 AR type.
- the test piece was cut out from the central flat part of the tensile test piece used in the tensile test and measured.
- the blending amount of the FEP copolymer is 0.1 mass. Molding was performed in the same manner as in Example 13 except that the value was changed to 0 . Table 2 shows the results of tensile tests and density measurements. Example 1 5 Molding was performed in the same manner as in Example 13 except that the amount of the FEP copolymer was changed to 0.25% by mass. Table 2 shows the results of tensile tests and density measurements. Comparative Example 1 3
- Example 16 The molded products of Examples 13 to 15 obtained by blending the fluorinated polymer were higher in yield strength and yield elongation than the molded product of Comparative Example 13 obtained without blending the fluorinated polymer. Since the elastic modulus and the like are increasing and the density is increasing, it can be seen that crystallization is progressing even under the same molding conditions.
- Example 16 The molded products of Examples 13 to 15 obtained by blending the fluorinated polymer were higher in yield strength and yield elongation than the molded product of Comparative Example 13 obtained without blending the fluorinated polymer. Since the elastic modulus and the like are increasing and the density is increasing, it can be seen that crystallization is progressing even under the same molding conditions.
- Example 16 Example 16
- the FEP copolymer obtained in Synthesis Example 1 was supplied with a vibrator-type quantitative feeder (Kubota) to 5% by mass, and the same direction rotating twin screw extruder (Model: ZE40A, Berstorff, Screw size: ⁇ 43 mm, L / D: 33.5), barrel temperature 260-270 ° C, kneaded with nylon 66 similar to that used in Example 1 to obtain pellets .
- Fig. 1 (a) shows the SS curve of the tensile test using the obtained compact. Comparative Example 1 5
- Fig. 1 (b) shows the SS curve of the tensile test using the obtained compact.
- the molded product of Example 16 obtained by blending the fluoropolymer was annealed without blending the fluoropolymer without being annealed.
- the peak before the yield point of the S—S curve disappeared in the same manner as in the molded body of Comparative Example 15 subjected to the test.
- the resin composition of the present invention is obtained by blending the fluoropolymer with a content within a specific range, the transportability of the melt from the heating section to the cooling section in the developing machine is improved. It can be made good and stable, and enables stable production of molded products, improved yield, improved productivity, etc., and is advantageous for industrial production of engineering plastic molded products.
- fluoropolymer exhibiting such a lubricating action for example, FEP is used and melted like FEP in a melt obtained by setting the molding temperature to a temperature equal to or higher than the melting point of FEP.
- PTFE may be used and it may not be melted like PTFE in a melt obtained by setting the molding temperature to a temperature lower than the melting start point of PTFE.
- the fluoropolymer is melted at the molding temperature, the polymer may not be compatible with the engineering ring plastic in order to effectively exhibit the lubricating action. I like it.
- the resin composition of the present invention can be easily crystallized because it is obtained by blending the above-mentioned fluoropolymer.
- the cycle time during molding processing is shortened, and the production equipment This simplifies and stabilizes the physical properties of the resulting molded body.
- the resin composition of the present invention a wide variety of fluoropolymers can be used as described above, such that it is often unnecessary to select the melting point in relation to the molding temperature.
- the range of material selection can be expanded.
- the lubricating action can be obtained only by blending a very small amount of the fluoropolymer within the specific range described above.
- the resin composition of the present invention can not only improve the moldability in the industrial production of engineering plastics by a simple method, but the fluoropolymer is usually expensive. It is advantageous for industrial production from the point that the effect can be obtained in a very small amount.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2003545726A JPWO2003044093A1 (ja) | 2001-11-21 | 2002-11-21 | 樹脂組成物及び成形体製造方法 |
EP02783579A EP1454963A1 (en) | 2001-11-21 | 2002-11-21 | Resin composition and process for producing molding |
US10/380,830 US20040102572A1 (en) | 2002-11-21 | 2002-11-21 | Resin composition and process for producing molding |
Applications Claiming Priority (2)
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US09/989,160 | 2001-11-21 | ||
US09/989,160 US20030109646A1 (en) | 2001-11-21 | 2001-11-21 | Resin composition and method of producing shaped articles |
Publications (1)
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WO2003044093A1 true WO2003044093A1 (fr) | 2003-05-30 |
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ID=25534824
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/012148 WO2003044093A1 (fr) | 2001-11-21 | 2002-11-21 | Composition de resine et procede de fabrication de moules |
PCT/JP2002/012147 WO2003044088A1 (fr) | 2001-11-21 | 2002-11-21 | Composition a base de resine plastique d'ingenierie decomposable a basse temperature et procede de production d'un objet moule a partir de cette composition |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2002/012147 WO2003044088A1 (fr) | 2001-11-21 | 2002-11-21 | Composition a base de resine plastique d'ingenierie decomposable a basse temperature et procede de production d'un objet moule a partir de cette composition |
Country Status (6)
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US (2) | US20030109646A1 (ja) |
EP (2) | EP1452562A1 (ja) |
JP (2) | JPWO2003044093A1 (ja) |
CN (2) | CN1547603A (ja) |
TW (2) | TW200300430A (ja) |
WO (2) | WO2003044093A1 (ja) |
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- 2001-11-21 US US09/989,160 patent/US20030109646A1/en not_active Abandoned
-
2002
- 2002-11-21 EP EP02785943A patent/EP1452562A1/en not_active Withdrawn
- 2002-11-21 JP JP2003545726A patent/JPWO2003044093A1/ja not_active Withdrawn
- 2002-11-21 TW TW091133908A patent/TW200300430A/zh unknown
- 2002-11-21 WO PCT/JP2002/012148 patent/WO2003044093A1/ja not_active Application Discontinuation
- 2002-11-21 CN CNA028157893A patent/CN1547603A/zh active Pending
- 2002-11-21 US US10/380,825 patent/US20040242771A1/en not_active Abandoned
- 2002-11-21 EP EP02783579A patent/EP1454963A1/en not_active Withdrawn
- 2002-11-21 WO PCT/JP2002/012147 patent/WO2003044088A1/ja not_active Application Discontinuation
- 2002-11-21 CN CNA028157885A patent/CN1541251A/zh active Pending
- 2002-11-21 JP JP2003545722A patent/JPWO2003044088A1/ja not_active Withdrawn
- 2002-11-21 TW TW091133909A patent/TW200300429A/zh unknown
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JPH0391556A (ja) * | 1989-09-04 | 1991-04-17 | Lion Corp | 導電性樹脂組成物 |
JPH06136255A (ja) * | 1992-10-27 | 1994-05-17 | Mitsui Toatsu Chem Inc | ポリエーテル芳香族ケトン樹脂組成物 |
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Cited By (21)
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JP2014169458A (ja) * | 2004-11-16 | 2014-09-18 | Daikin Ind Ltd | 変性ポリテトラフルオロエチレンファインパウダー及び変性ポリテトラフルオロエチレン成形体 |
US9663601B2 (en) | 2004-11-16 | 2017-05-30 | Daikin Industries, Ltd. | Modified polytetrafluoroethylene fine powder and modified polytetrafluoroethylene molded product |
US9346903B2 (en) | 2004-11-16 | 2016-05-24 | Daikin Industries, Ltd. | Modified polytetrafluoroethylene fine powder and modified polytetrafluoroethylene molded product |
JP5702385B2 (ja) * | 2010-07-05 | 2015-04-15 | 清華大学 | 樹脂組成物および成形品 |
WO2012005133A1 (ja) * | 2010-07-05 | 2012-01-12 | 清華大学 | 樹脂組成物および成形品 |
US10611909B2 (en) | 2010-07-05 | 2020-04-07 | Tsinghua University | Resin composition and molded article |
US8829130B2 (en) | 2010-07-05 | 2014-09-09 | Tsinghua University | Resin composition and molded article |
JPWO2012005133A1 (ja) * | 2010-07-05 | 2013-09-02 | 清華大学 | 樹脂組成物および成形品 |
US9605144B2 (en) | 2010-07-05 | 2017-03-28 | Tsinghua University | Resin composition and molded article |
WO2013088964A1 (ja) | 2011-12-13 | 2013-06-20 | ダイキン工業株式会社 | 樹脂組成物及び成形品 |
CN103999167B (zh) * | 2011-12-14 | 2019-01-11 | 大金工业株式会社 | 绝缘电线 |
WO2013088968A1 (ja) * | 2011-12-14 | 2013-06-20 | ダイキン工業株式会社 | 絶縁電線 |
CN103999167A (zh) * | 2011-12-14 | 2014-08-20 | 大金工业株式会社 | 绝缘电线 |
US11024441B2 (en) | 2011-12-14 | 2021-06-01 | Daikin Industries, Ltd. | Insulated wire |
KR20150023713A (ko) | 2012-08-06 | 2015-03-05 | 다이킨 고교 가부시키가이샤 | 수지 조성물 및 성형품 |
WO2014024671A1 (ja) | 2012-08-06 | 2014-02-13 | ダイキン工業株式会社 | 樹脂組成物及び成形品 |
US10294362B2 (en) | 2012-08-06 | 2019-05-21 | Daikin Industries, Ltd. | Resin composition and molded article |
US9644080B2 (en) | 2013-04-17 | 2017-05-09 | Daicel-Evonik Ltd. | Light-resistant resin composition, and moulded body thereof |
WO2014171029A1 (ja) * | 2013-04-17 | 2014-10-23 | ダイセル・エボニック株式会社 | 耐光性樹脂組成物およびその成形体 |
JP2015151488A (ja) * | 2014-02-17 | 2015-08-24 | 旭硝子株式会社 | フッ素樹脂組成物の製造方法、成形品及び電線 |
WO2022181830A1 (ja) * | 2021-02-26 | 2022-09-01 | ダイキン工業株式会社 | 含フッ素共重合体 |
Also Published As
Publication number | Publication date |
---|---|
EP1454963A1 (en) | 2004-09-08 |
EP1452562A1 (en) | 2004-09-01 |
CN1541251A (zh) | 2004-10-27 |
US20030109646A1 (en) | 2003-06-12 |
EP1454963A8 (en) | 2004-12-22 |
TW200300429A (en) | 2003-06-01 |
US20040242771A1 (en) | 2004-12-02 |
JPWO2003044093A1 (ja) | 2005-03-10 |
TW200300430A (en) | 2003-06-01 |
WO2003044088A1 (fr) | 2003-05-30 |
JPWO2003044088A1 (ja) | 2005-03-10 |
CN1547603A (zh) | 2004-11-17 |
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