WO2001046316A1 - Composition de resine thermoplastique - Google Patents
Composition de resine thermoplastique Download PDFInfo
- Publication number
- WO2001046316A1 WO2001046316A1 PCT/JP2000/001742 JP0001742W WO0146316A1 WO 2001046316 A1 WO2001046316 A1 WO 2001046316A1 JP 0001742 W JP0001742 W JP 0001742W WO 0146316 A1 WO0146316 A1 WO 0146316A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- component
- styrene
- block copolymer
- resin composition
- Prior art date
Links
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- 238000013329 compounding Methods 0.000 description 2
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- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
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- 239000004416 thermosoftening plastic Substances 0.000 description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
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- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
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- YMOONIIMQBGTDU-VOTSOKGWSA-N [(e)-2-bromoethenyl]benzene Chemical compound Br\C=C\C1=CC=CC=C1 YMOONIIMQBGTDU-VOTSOKGWSA-N 0.000 description 1
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- 238000010521 absorption reaction Methods 0.000 description 1
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- 238000010539 anionic addition polymerization reaction Methods 0.000 description 1
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- 239000002216 antistatic agent Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
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- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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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
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
Definitions
- the present invention relates to a thermoplastic resin composition having excellent heat resistance, oil resistance, and excellent tensile elongation characteristics.
- Styrene resins are widely used as injection molding materials and sheet molding materials because of their rigidity, good step stability, and low cost.
- styrene resins undergo stress cracking under the influence of fatty oils, organic solvents, and the like, causing a sharp decline in physical properties.
- the styrene resin is amorphous and has a glass transition temperature of around 90 ° C, it is easily deformed even at a relatively low temperature of 90 ° C or less. Due to these drawbacks, styrenic resins have considerable limitations in their use.
- a polymer is composed of a polymerized vinyl aromatic compound A and an oligomeric elastomer B, and A—B—A, A— (B—A -B) n — selectively water of the type A, A (BA) n B, B (A) 4 or B [(AB) n B] 4 , where n is an integer from 1 to 10
- a thermoplastic composition comprising a polystyrene resin and a polyethylene or polyolefin resin having an added linear, sexual or radial tereblock copolymer as a compatibilizer.
- the block composed of the polymerized vinyl aromatic compound preferably accounts for 15 to 40% by weight of the entire block polymer, and the olefin elastomer B is preferably used.
- a SEBS block copolymer having a vinyl side chain and specifically having a bound styrene content of 30% by weight is disclosed.
- block copolymers that can exist at the interface are used.
- Japanese Patent Application Laid-Open No. 56-38338 discloses that at least one vinyl aromatic compound polymer block A and at least one conjugated diene polymer block B have By hydrogenating a block copolymer having an aromatic compound content of 15 to 85% by weight, hydrogen obtained by saturating at least 70% of double bonds in the block copolymer is obtained.
- a thermoplastic resin composition comprising a polyolefin-based resin and a polystyrene-based resin using an added block copolymer as a compatibilizer has been proposed.
- a compatibilizer in a composition of a styrene resin and a propylene resin has been proposed.
- these hydrogen-added block copolymers have the drawback of having a complicated structure and a complicated production method, and a hydrogenated block copolymer having a simple structure and an easy production method has been awaited.
- the weight ratio of the styrene block portion is 40 to 70% by weight.
- Compositions have been proposed.
- the hydrogenated product of the triploc copolymer having isoprene block is inferior in weather resistance and heat resistance, and has a problem in recyclability.
- the adhesive strength at the interface between the styrene resin phase and the propylene resin phase in these resin compositions was not sufficient, and it was not always satisfactory in tensile elongation characteristics.
- the present invention provides a thermoplastic resin composition having excellent heat and oil resistance and excellent tensile elongation properties by adding a hydrogenated block copolymer having a specific structure to a styrene-based resin and a propylene-based resin.
- the purpose is to provide. Disclosure of the invention
- the present invention comprises (A) a styrene-based resin, (B) a propylene-based resin, and (C) two or more polystyrene blocks X and one or more polybutadiene blocks Y.
- a thermoplastic resin composition comprising a hydrogenated block copolymer in which about 0% or more of the double bonds have been hydrogenated.
- the hydrogenated block copolymer (C.) has a styrene content of 40%.
- the amount of 1,2 bonds in the polybutadiene block Y is 30 to 80% by weight, and the composition ratio of the component (A) to the component (B) is 95: 5 to 5:
- the weight ratio of component (C) is 2 to 30 parts by weight with respect to 100 parts by weight of component (A) and component (B). 0% or more is achieved by the thermoplastic resin composition present at the interface between the component (A) phase and the component (B) phase.
- FIG. 1 is a view showing a phase separation structure of the thermoplastic resin composition of Example 1 of the present invention observed with a transmission electron microscope.
- FIG. 2 is a view showing a phase separation structure of the thermoplastic resin composition of Comparative Example 2 observed with a transmission electron microscope.
- styrene resin (A) styrene, methyl styrene, ethyl styrene, isopropyl styrene, dimethyl styrene, paramethyl styrene, chloro styrene, bromo styrene, vinyl toluene, vinyl xylene and the like are used as monomer components.
- Homopolymer or copolymer Homopolymer or copolymer, styrene-maleic anhydride copolymer, styrene-acrylic acid copolymer, styrene-acrylic acid ester copolymer, styrene-methacrylic acid copolymer, styrene-acrylonitrile Tolyl copolymer and acrylonitrile-butadiene-styrene copolymer are exemplified.
- an impact-resistant polystyrene resin obtained by mixing or graft-polymerizing one or more of butadiene rubber, ethylene-propylene rubber, and styrene-butadiene rubber with the above-mentioned polystyrene resin can be used.
- the melt index (Ml: 200 ° 5 kg load) of the styrenic resin of the present invention is preferably 0.5 to 20 g / 10 minutes, and 1 to 10 g / 10 minutes is more preferred.
- the propylene-based resin (B) is not particularly limited as long as it is a polymer obtained by polymerizing propylene monomer as a main component, but ethylene, butene, 4-methylbenthene is used up to about 20% by weight. It may be copolymerized with another 1-year-old refin such as 1.
- the copolymer may be any of a random copolymer and a block copolymer.
- copolymer rubbers of two or more kinds of monoolefins such as ethylene, propylene, 1-butene, 1-hexene, 4-methyl-1-pentene, and 1-octene, or haeoolefin and various monomers And up to about 40% by weight of a thermoplastic thermoplastic elastomer such as a copolymer rubber.
- the copolymer rubbers of two or more of the above-mentioned olefins are typically ethylene-propylene copolymer rubber (EPR), ethylene-butene copolymer rubber (EBR), and ethylene-propylene-one-gen copolymer rubber.
- Polymer rubber (E PDM) Polymer rubber
- the propylene-based resin (B) is preferably a syndiotactic polypropylene homopolymer, a propylene-ethylene block resin having a crystal melting beak temperature of at least 150 ° C. by DSC, and these are used. As a result, the heat distortion temperature of the obtained composition increases.
- the melt flow rate (MFR, 230 ° Cs 2.16 Kg load) of the propylene-based resin of the present invention is preferably 0.5 to 60 gZ for 10 minutes, and l to 20 g / 10 minutes. More preferred. If the melt flow rate is less than 0.5 to 10 minutes, the moldability of the obtained thermoplastic resin composition will be poor, and if it exceeds 60 g / 10 minutes, the impact resistance will be reduced, which is not preferable. .
- the hydrogenated block copolymer (C) is composed of two or more polystyrene blocks X and one or more polybutadiene blocks Y, and the polybutadiene block Y has 70% of double bonds of polybutene diene.
- the above is a hydrogenated hydrogenated block copolymer.
- the polystyrene block X may be a styrene homoblock or a block mainly containing styrene and containing not more than 40% by weight of another vinyl aromatic compound copolymerizable with styrene.
- Other vinyl aromatic compounds include, for example, monomethylstyrene, 4-methylstyrene, 1,1-diphenylethylene, divinylbenzene, and the like.
- Polybutadiene block Y Or a block containing not more than 40% by weight of another conjugated diene compound-vinyl aromatic compound which is mainly composed of butadiene and copolymerizable with butadiene.
- conjugated diene compounds that can be copolymerized with busugen include, for example, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-benzene, and 2-methyl-1,3-bujengen. , 1,3-hexadiene, 4,5-Jetyl-1,3-octyl-1,3-butyl-1,3-octyl, myrcene, ocimene, etc.
- vinyl aromatic compounds include styrene , 1-methylstyrene, 4-methylstyrene, 1,1-diphenylethylene, divinylbenzene and the like.
- the styrene content of the hydrogenated block copolymer (C) is from 40 to 80% by weight, preferably from 45 to 80% by weight. If the styrene content is less than 40% by weight, the affinity between the hydrogenated block copolymer (C) and the styrene resin is insufficient, and the hydrogenated block copolymer existing at the interface between the styrene resin phase and the propylene resin phase is insufficient. Insufficient amount of polymer and lack of compatibilizing effect.
- the styrene content of the hydrogenated block copolymer (C) contains other vinyl aromatic compounds in addition to styrene, the styrene content is set to be% by weight of all vinyl aromatic compounds.
- the 1,2 bond amount of the butadiene unit of the polybutadiene block Y of the hydrogenated block copolymer (C) is 30 to 80% by weight, preferably 40 to 80% by weight.
- the affinity between the hydrogenated polybutadiene block and the pyrene-based resin is insufficient, and the compatibilizing effect of the hydrogenated block copolymer becomes insufficient.
- the content exceeds 80% by weight, the affinity with the propylene resin becomes excessive, and the hydrogenated block copolymer is incorporated into the propylene resin phase, resulting in an insufficient compatibilizing effect. .
- the hydrogenated block copolymer (C) is obtained by hydrogenating at least 70% of the double bonds of the polybutene diene of the polybutene diene block Y. If the hydrogenation is less than 70%, the elongation properties and heat resistance of the composition tend to decrease.
- the weight-average molecular weight of the polystyrene block X of the hydrogenated block copolymer (C) is 500 to 500, and the weight-average molecular weight of Polybutane Genprock Y is 50 00 to 700 is preferred.
- the weight average molecular weight of the polystyrene block X is 5,000 or less, the affinity of the polystyrene block X with the styrene resin decreases, and when the weight average molecular weight of the polybutadiene block Y is 5,000 or less, hydrogen is added.
- the affinity of the polybutadiene block Y with the propylene-based resin decreases, resulting in poor compatibilizing effect.
- the weight average molecular weight of the polystyrene block X is 50,000 or more, or the weight average molecular weight of the polystyrene block Y is 70,000 or more, the molecular weight of the hydrogenated block copolymer becomes excessive. As a result, the melt viscosity increases, the dispersion in the resin composition comprising the styrene resin and the propylene resin becomes insufficient, and the compatibilizing effect is poor.
- the melt flow rate (MFR, 230 ° C., 2.16 Kg load) of the hydrogenated block copolymer (C) is preferably from 0.1 to 50 g / 10 minutes, more preferably from 0 to 50 g / 10 minutes. 5 to 20 g / 10 minutes, more preferably 1 to 10 g / 10 minutes. If the melt is less than 0.1 g / 10 min, the melt viscosity is too high to obtain a sufficient compatibilizing effect. The effect of reinforcing the interface of the propylene resin cannot be obtained. .
- the hydrogenated block copolymer (C) is present at the interface between the styrene resin (A) and the propylene resin (B), and at least 60% is present at the interface. Is preferably present. If the abundance is less than 50%, even if the styrene-based resin and the propylene-based resin have an interpenetrating phase-separated structure, excellent performance in terms of tensile elongation properties will not be exhibited due to poor interfacial adhesive strength. .
- the composition ratio of the styrene resin (A) to the propylene resin (B) is a weight ratio of 95: 5 to 5:95.
- the composition ratio of the styrene resin (A) can be increased, and if the heat resistance and oil resistance are important, the mixing ratio of the propylene resin (B) can be adjusted to increase.
- the composition ratio of the styrene-based resin (A) to the propylene-based resin (B) is preferably 80:20 to 40:60 in terms of the balance between heat resistance and oil resistance.
- the addition amount of the hydrogenated block copolymer (C) is 2 to 30 parts by weight, preferably 5 to 50 parts by weight, based on 100 parts by weight of the styrene resin (A) and the propylene resin (B). 15 parts by weight. If the amount is less than 2 parts by weight, the compatibilizing effect becomes insufficient. Also, 3 0 Exceeding parts by weight reduces stiffness and is not economical.
- the hydrogenated block copolymer (C) a triblock copolymer preferably having an XY—X structure is used.
- the styrene content of the hydrogenated block copolymer (C) is more preferably more than 50% by weight and not more than 80% by weight.
- the 1,2-bond amount of the polybutadiene block Y of the hydrogenated block copolymer (C) is more preferably 45 to 75% by weight, and more preferably 55 to 70% by weight.
- the hydrogenated block copolymer (C) has a Y—X—Y—X or Y—X—Y—X—Y structure.
- the styrene content of the hydrogenated block copolymer (C) is more preferably more than 50% by weight and not more than 80% by weight.
- the 1,2 bond amount of the polybutene block Y of the hydrogenated block copolymer (C) is more preferably 30% by weight or more and less than 60% by weight.
- the method for producing the hydrogenated block copolymer (C) is not particularly limited, and a known method is employed.
- a polystyrene block X and a polybutadiene block Y are formed in an inert solvent by using a living anion polymerization technique using an organolithium catalyst described in Japanese Patent Publication No. 36-192286.
- Block copolymers can be produced.
- a monolithium compound such as n-butyllithium, sec-butyllithium, tert-butyllithium, etc.
- a method of forming a triblock copolymer having an X—Y—X structure with a bifunctional coupling agent, and using a dilithium compound to form a Y, X There is a method of forming a triblock copolymer having an X— ⁇ —X structure in order.
- Adjustment of the styrene content of the hydrogenated block copolymer (C) of the present invention is performed by the feed monomer composition of styrene and butadiene.
- a polar compound and a randomizing agent can be used for the purpose of adjusting the polymerization rate, changing the microstructure (cis, trans, 1, 2 bond ratio) of the polymerized butadiene block, and the like.
- polar compounds and randomizing agents include amines such as N, N, N, N, N, tetramethylethylenediamine, trimethylamine, triethylamine, diazobicyclo [2,2,2] octane, tetrahydrofuran, and diethylene glycol dimethylene.
- ethers such as monoter, diethylene glycol dibutyl ether, and the like, thioethers, phosphines, phosphoramides, alkylbenzenesulfonates, alkoxides of potassium and sodium, and the like.
- the butadiene block solution obtained by dissolving the block copolymer in a hydrocarbon solvent or the solution obtained by dissolving the block copolymer in a hydrocarbon solvent is subjected to a hydrogenation reaction (hereinafter referred to as hydrogenation reaction). At least 70% or more of the double bonds can be selectively hydrogenated to form a block copolymer.
- the active terminal of the block copolymer solution may be inactivated by a polymerization terminator, if necessary, or may be left as it is.
- a supported heterogeneous catalyst system and (2) a Ziegler-type catalyst or a homogeneous catalyst using a thioninocene compound are known. Specific methods include the methods described in JP-B-42-87004 and JP-B-43-6636, preferably JP-B-63-441, and According to the method described in Japanese Patent Publication No. 63-54001, a hydrogenated block copolymer solution can be obtained by adding hydrogen to the presence of a hydrogenation catalyst in an inert solvent.
- the hydrogenated block copolymer can be obtained by removing the solvent from the thus obtained solution of the hydrogenated block copolymer by an ordinary method. If necessary, a process for demineralizing metals can be adopted. If necessary, a reaction terminator, an antioxidant, a neutralizing agent, a surfactant and the like may be used.
- the thermoplastic resin composition of the present invention may contain optional additives as needed.
- the type of the additive is not particularly limited as long as it is generally used in the compounding of the resin.
- the additive include inorganic fillers such as silica, calcium carbonate, magnesium carbonate, calcium sulfate, and talc; organic fibers; Pigments such as titanium, carbon black, iron oxide, etc., stearic acid, behenic acid, zinc stearate, stearic acid lubricant, lubricant such as magnesium stearate, ethylene bis-stearamide, mold release agent, organic polysiloxane Plasticizers such as mineral oil, hindered phenol And phosphine-based antioxidants, flame retardants, ultraviolet absorbers, antistatic agents, reinforcing agents such as glass fibers, carbon fibers, and metal whiskers, and other additives or mixtures thereof.
- inorganic fillers such as silica, calcium carbonate, magnesium carbonate, calcium sulfate, and talc
- the method for producing the resin composition of the present invention is such that at least 50% of the hydrogenated block copolymer (C) is present at the interface between the styrene resin (A) phase and the propylene resin (B) phase. If so, there is no particular limitation, and a known method can be used. For example, a melt kneading method using a general kneader such as a Banbury mixer, a single screw extruder, a twin screw extruder, a co-kneader, a multi-screw extruder, etc. A method of removing by heating or the like is used.
- a general kneader such as a Banbury mixer, a single screw extruder, a twin screw extruder, a co-kneader, a multi-screw extruder, etc.
- a method of removing by heating or the like is used.
- the styrene resin (A) phase, the propylene resin (B) phase and the hydrogenated block copolymer (C) are sufficiently melted and mixed, and the hydrogenated block copolymer (C) is converted to the styrene resin. Kneading at 180 ° C or higher, preferably 200 ° C or higher, which is the condition for moving to the interface between the (A) phase and the propylene-based resin (B) phase, and at a shear rate of lOO sec- 1 or higher Is preferably performed. Further, a method using a twin-screw extruder is preferable. In addition, it is preferable that the master velvet is once manufactured by kneading with these methods, and then molded using the master velvet, and if necessary, foam molded.
- Styrene content 6 7 9 based on absorption of cm one 1 Fuweniru group was measured with a infrared analysis.
- Oil resistance Using a sheet extruder, the resin composition was formed into a sheet having a thickness of 1 mm, formed into a container having a height of 2 cm and a length of 10 cm x a width of 10 cm, and a synthetic coconut oil was applied to the inner surface. Thereafter, the heating temperature at which the rate of change of the inner volume of the container when heated in an oven for 1 hour was 10% or more was used as an index.
- Phase-separated structure From an injection molded article of the resin composition, an ultra-thin section parallel to the flow direction of the resin during molding is cut out with an ultramicrotome, stained with ruthenium tetroxide, and transmitted electron microscope. From the observation of the image at 25,000 times, the phase separation structure between the styrene resin phase and the propylene resin phase was observed.
- Block copolymer interface abundance The ratio to the total blended amount of hydrogenated block copolymer present at the interface between the styrene-based resin phase and the propylene-based resin phase was measured and calculated by the following method. ): Above (9) Take a picture of the phase-separated structure observed with a transmission electron microscope. By image analysis of this photograph, the area of the hydrogenated block copolymer present in the styrene-based resin phase or propylene-based resin phase is measured, and the ratio (a) to the total area subjected to the image analysis is calculated.
- the weight ratio of the hydrogenated block copolymer calculated from the compounding ratio of the resin composition is represented by (b)
- the ratio of the hydrogenated block copolymer existing at the interface between the styrene-based resin phase and the propylene-based resin phase ( c) is ((b) — (a)) / (b) x 100%, and this value was used as an index.
- the obtained block copolymer solution was diluted to 5% by weight with cyclohexane, and a solution of nickel octenoate in hexane as a catalyst was converted to nickel in an amount of 1.175 g as a catalyst. Then, 6.85 g of a hexane solution of triethylaluminum in terms of triethylaluminum was added, and reacted at 50 ° C. for about 6 hours under hydrogen pressure. The obtained hydrogenated block copolymer solution was washed three times with an aqueous hydrochloric acid solution. The hydrogenated copolymer solution thus washed was precipitated with excess methanol using an excess of methanol, and the precipitate was dried under reduced pressure. The styrene content of the obtained hydrogenated block copolymer (I) was 67%, the amount of 1,2 bonds in Polybutene Genprock was 41%, and the hydrogenation ratio was 97%.
- the seven types of hydrogenated block copolymers obtained in this way were converted to commercially available impact-resistant styrene resins (HIPS // Dainippon Ink Chemical: SR500) and styrene resins (GPPS / A & M Styrene Co., Ltd.). : G9305) or acrylonitrile-butadiene-styrene resin (ABS / A4130 manufactured by Asahi Kasei Kogyo Co., Ltd.) and block propylene resin (b-PP / Chisso Corporation: K7019); After mixing for about 10 minutes with a super mixer, The mixture was melt-kneaded at 210 to 230 ° C. using a 30 mm diameter twin-screw output machine to obtain a pellet-shaped composition. Various measurements were performed on this pellet-like composition. Tables 2 and 3 show the composition ratios and measurement results.
- FIGS. 1 and 2 The phase separation structures of the thermoplastic resin compositions of Example 1 and Comparative Example 2 observed by a transmission electron microscope are shown in FIGS. 1 and 2, respectively.
- the propylene resin phase ⁇ A large number of hydrogenated block copolymers are dispersed in the (unstained, light phase), and the hydrogenated block copolymer C is located at the boundary between the styrene resin phase A (stained, dark phase) and the propylene resin phase. But almost nonexistent.
- Comparative Example 1 when the hydrogenated block copolymer was not used, the tensile elongation characteristics were poor and the oil resistance was insufficient.
- Comparative Example 2 since the styrene content of the hydrogenated block copolymer was too small, the hydrogenated block copolymer had an excessive affinity for the propylene resin, the abundance ratio in the propylene resin phase increased, and the styrene content increased. The amount of the hydrogenated block copolymer that reinforces the adhesive strength at the interface between the resin phase and the propylene resin phase becomes insufficient, resulting in poor tensile elongation characteristics and oil resistance.
- the hydrogenated block copolymer (C) used in the present invention exists at the interface between the styrene-based resin phase and the propylene-based resin phase and reinforces the interface, and as a result, has excellent heat resistance and oil resistance. It is possible to provide a thermoplastic resin composition having no tensile elongation characteristics.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2001-7010568A KR100440642B1 (ko) | 1999-12-21 | 2000-03-22 | 열가소성 수지 조성물 |
ES00911278.0T ES2443640T3 (es) | 1999-12-21 | 2000-03-22 | Composición de resina termoplástica |
EP00911278.0A EP1243616B1 (en) | 1999-12-21 | 2000-03-22 | Thermoplastic resin composition |
US09/913,332 US6797776B1 (en) | 1999-12-21 | 2000-03-22 | Thermoplastic resin composition |
Applications Claiming Priority (2)
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JP11/362413 | 1999-12-21 | ||
JP36241399 | 1999-12-21 |
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WO2001046316A1 true WO2001046316A1 (fr) | 2001-06-28 |
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PCT/JP2000/001742 WO2001046316A1 (fr) | 1999-12-21 | 2000-03-22 | Composition de resine thermoplastique |
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US (1) | US6797776B1 (ja) |
EP (1) | EP1243616B1 (ja) |
KR (1) | KR100440642B1 (ja) |
ES (1) | ES2443640T3 (ja) |
TW (1) | TWI265949B (ja) |
WO (1) | WO2001046316A1 (ja) |
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JP2014141540A (ja) * | 2013-01-22 | 2014-08-07 | Toyo Ink Sc Holdings Co Ltd | 樹脂組成物 |
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KR100476942B1 (ko) * | 2002-11-26 | 2005-03-17 | 금호석유화학 주식회사 | 내후성 및 내열성이 향상된 스티렌계 열가소성 탄성체조성물 및 이를 이용한 성형품 |
JP4069389B2 (ja) * | 2003-03-07 | 2008-04-02 | ジェイエスアール クレイトン エラストマー株式会社 | アスファルト改質用ブロック共重合体組成物、その製造方法、およびアスファルト組成物 |
US10053603B2 (en) * | 2014-04-02 | 2018-08-21 | Kraton Polymers U.S. Llc | Block copolymers containing a copolymer myrcene block |
KR101806005B1 (ko) * | 2015-07-14 | 2017-12-07 | 주식회사 엘지화학 | 변성 폴리(아릴렌 에테르) 수지 조성물, 이의 제조방법 및 이로부터 제조된 성형품 |
WO2017156411A1 (en) * | 2016-03-11 | 2017-09-14 | Case Western Reserve University | Flame retardant polymer composite materials and methods of making the same |
EP3378877B1 (en) | 2017-02-28 | 2019-06-19 | Evonik Oil Additives GmbH | Hydrogenated polybutadienes useful as lubricant additives |
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EP0004685A2 (en) * | 1978-03-30 | 1979-10-17 | Shell Internationale Researchmaatschappij B.V. | Impact resistant polystyrene/polyolefin compositions and grease resistant articles formed therefrom |
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WO1993013168A1 (en) * | 1991-12-20 | 1993-07-08 | The Dow Chemical Company | Thermoformable, chemical resistant polymer blends |
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JPH06184366A (ja) * | 1992-12-16 | 1994-07-05 | Kuraray Co Ltd | 熱可塑性樹脂成形体 |
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2000
- 2000-03-22 US US09/913,332 patent/US6797776B1/en not_active Expired - Lifetime
- 2000-03-22 TW TW089105383A patent/TWI265949B/zh not_active IP Right Cessation
- 2000-03-22 ES ES00911278.0T patent/ES2443640T3/es not_active Expired - Lifetime
- 2000-03-22 WO PCT/JP2000/001742 patent/WO2001046316A1/ja active IP Right Grant
- 2000-03-22 EP EP00911278.0A patent/EP1243616B1/en not_active Expired - Lifetime
- 2000-03-22 KR KR10-2001-7010568A patent/KR100440642B1/ko active IP Right Grant
Patent Citations (7)
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GB2003891A (en) * | 1977-09-14 | 1979-03-21 | Gen Electric | Composition of a polystyrene resin, and a precompounded polymer system comprising a polyolefin and a selectively hydrogenated block copolymer of a vinyl aromatic compound and an olefinic elastomer |
EP0004685A2 (en) * | 1978-03-30 | 1979-10-17 | Shell Internationale Researchmaatschappij B.V. | Impact resistant polystyrene/polyolefin compositions and grease resistant articles formed therefrom |
JPH0445140A (ja) | 1990-06-12 | 1992-02-14 | Tonen Corp | 熱可塑性樹脂組成物 |
WO1993013168A1 (en) * | 1991-12-20 | 1993-07-08 | The Dow Chemical Company | Thermoformable, chemical resistant polymer blends |
JPH06192502A (ja) | 1992-12-25 | 1994-07-12 | Daicel Chem Ind Ltd | 熱可塑性樹脂組成物 |
JP3619286B2 (ja) | 1995-06-27 | 2005-02-09 | 石川島播磨重工業株式会社 | 水中レーザ溶接装置 |
EP1029876A1 (en) | 1998-09-14 | 2000-08-23 | Asahi Kasei Kogyo Kabushiki Kaisha | Hydrogenated block copolymer |
Non-Patent Citations (1)
Title |
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See also references of EP1243616A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014141540A (ja) * | 2013-01-22 | 2014-08-07 | Toyo Ink Sc Holdings Co Ltd | 樹脂組成物 |
Also Published As
Publication number | Publication date |
---|---|
EP1243616A4 (en) | 2004-03-17 |
EP1243616A1 (en) | 2002-09-25 |
EP1243616B1 (en) | 2014-01-22 |
KR100440642B1 (ko) | 2004-07-21 |
KR20010113701A (ko) | 2001-12-28 |
US6797776B1 (en) | 2004-09-28 |
ES2443640T3 (es) | 2014-02-20 |
TWI265949B (en) | 2006-11-11 |
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