WO2012039410A1 - 難燃性スチレン系熱可塑性樹脂組成物およびその成形品 - Google Patents
難燃性スチレン系熱可塑性樹脂組成物およびその成形品 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/06—Organic materials
- C09K21/12—Organic materials containing phosphorus
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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
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
- C08K5/23—Azo-compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl 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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
Definitions
- the present invention relates to a flame-retardant styrene-based thermoplastic resin composition and a molded product thereof.
- Styrenic resin represented by ABS resin
- ABS resin has excellent mechanical properties, molding processability and electrical insulation, so it is used in a wide range of fields including home electrical equipment, OA equipment and automobile parts.
- styrene-based resins are flammable, various techniques have been devised for flame retardancy due to safety issues.
- a method of making a flame retardant by blending a chlorine-based flame retardant having high flame retardant efficiency, a bromine-based flame retardant and antimony oxide with a resin is employed.
- this method contains a large amount of flame retardant to prevent the drop of fire (drip) during combustion, there is a drawback that the mechanical properties and heat resistance of the resin composition deteriorate, and further, during molding and during combustion.
- non-halogen resins that do not contain chlorinated and brominated flame retardants.
- a phosphate ester is often used as a typical one.
- a method of adding polyphosphate to a styrene resin Patent Document 1
- a method of adding a phosphate ester having a specific structure to a rubber-reinforced styrene resin Patent Document 2
- a method of adding a liquid phosphate ester to a styrene resin Patent Document 3
- the phosphoric acid ester has a low flame retarding effect.
- the styrene resin is imparted with flame retardancy.
- a large amount of phosphate ester must be blended, which not only deteriorates mechanical properties, but also causes problems such as bleeding out of the phosphate ester and mold contamination during molding. There was a problem that gas was generated.
- Patent Document 4 discloses a method using a hydroxyl group-containing phosphate ester.
- the hydroxyl group-containing phosphate ester also has a low flame retarding effect, and it has been difficult to solve the above problems.
- Patent Document 5 discloses a method of adding a novolak phenol resin and a compound containing a triazine skeleton as a carbonized layer-forming polymer to a hydroxyl group-containing phosphate. This technique also cannot solve the problem that the mechanical properties, impact resistance, and moldability inherent in the styrene resin are impaired. Furthermore, since the phenol resin is a material that is extremely inferior in light resistance, there is a problem that the light resistance of the resulting resin composition is lowered.
- Patent Document 6 discloses a method of using red phosphorus having a high flame retarding effect as a non-halogen flame retardant and adding a phenol resin having a carbonized layer forming ability as a flame retardant aid. Although flame retardancy can be imparted by this technology, the original mechanical properties, impact resistance and moldability of the styrene resin are impaired. Furthermore, there is a problem in that the molded product is colored red phosphorus by red phosphorus.
- the aromatic carbonate oligomer was added to improve the appearance of a polycarbonate resin composition filled with a filler such as glass fiber (Patent Document 8) and to improve the fluidity of the polycarbonate resin composition (Patent Document 9).
- a filler such as glass fiber
- Patent Document 9 the addition to the styrene-based thermoplastic resin composition contributes to the improvement of the flame retardancy of the resin composition.
- An object of the present invention is to provide a flame-retardant styrene-based thermoplastic resin composition that is excellent in flame retardancy, mechanical properties, and molding processability, and a molded product thereof, which eliminates the above-described drawbacks of the prior art.
- the present inventor has found that the above problems can be solved by blending a phosphate ester flame retardant and a specific aromatic carbonate oligomer into a styrene resin.
- the present invention relates to a flame-retardant styrene-based thermoplastic resin composition and a molded product thereof as described in the following (1) to (9).
- An aromatic carbonate oligomer having 6 to 15 parts by weight of a phosphate ester flame retardant (II) and a viscosity average molecular weight [Mv] of 1,000 to 10,000 with respect to 100 parts by weight of a styrene resin (I)
- a flame-retardant styrenic thermoplastic resin composition comprising 0.1 to 3 parts by weight.
- R 1 ⁇ R 4 represents any phenyl group substituted with an organic residue containing no phenyl group or a halogen, or different from each other were respectively identical.
- R 5 R 12 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and may be the same or different from each other Y is a direct bond, O, S, SO 2 , C (CH 3 ) 2 , CH 2 Or CHPh, where Ph represents a phenyl group.
- Z represents a substituted or unsubstituted alkylidene group, cyclohexylidene group, oxygen atom, sulfur atom or sulfonyl group having 2 to 5 carbon atoms.
- R 13 to R 16 represent a hydrogen atom or a carbon number. 1 to 3 alkyl groups, which may be the same or different.
- the styrene resin (I) is added to the rubber polymer (a) with an aromatic vinyl monomer (b), a vinyl cyanide monomer (c), an unsaturated carboxylic acid alkyl ester monomer.
- a graft copolymer (A) obtained by graft copolymerization of at least one monomer selected from a monomer (d) and other copolymerizable vinyl monomers (e), and an aromatic vinyl type Selected from monomer (b), vinyl cyanide monomer (c), unsaturated carboxylic acid alkyl ester monomer (d) and other copolymerizable vinyl monomers (e) Any of (1) to (3), wherein the vinyl (co) polymer (B) comprising one or more monomers is contained in a weight ratio of 10:90 to 50:50.
- the phosphoric acid ester-based flame retardant (II) is resorcinol bis (dixylyl phosphate) (f) and / or resorcinol bis (diphenyl phosphate) (g), according to any one of (1) to (4) A flame-retardant styrene-based thermoplastic resin composition.
- thermoplastic resin composition according to any one of (1) to (5), further comprising 0.1 to 1 part by weight of a phosphorus-containing organic compound-based antioxidant (IV).
- thermoplastic resin composition according to any one of (1) to (6), further comprising 0.1 to 1 part by weight of a silicone compound (V).
- a flame-retardant styrene-based thermoplastic resin composition and a molded product excellent in flame retardancy, mechanical properties, and moldability can be obtained.
- the styrene resin (I) in the present invention means an aromatic vinyl monomer (b), a vinyl cyanide monomer (c), an unsaturated carboxylic acid alkyl ester monomer (d), and a co-polymer.
- a vinyl (co) polymer (B) comprising at least one monomer selected from other vinyl monomers (e) that can be polymerized, or a rubber based on the vinyl (co) polymer (B). It refers to a polymer added with a polymer (a).
- the styrene resin (I) is a vinyl (co) polymer (B) added with a rubber polymer (a), the vinyl (co) polymer (B) and the rubber polymer (a ) From the viewpoint of compatibility of the rubbery polymer (a), the aromatic vinyl monomer (b), the vinyl cyanide monomer (c), and the unsaturated carboxylic acid alkyl ester monomer.
- a composition containing a vinyl (co) polymer (B) comprising the above monomers is preferred.
- the monomer mixture blended in the graft copolymer (A) does not have to be all grafted by bonding to the rubber polymer (a). They may be bonded together and included as an ungrafted polymer.
- the graft ratio is preferably 10 to 100%, more preferably 20 to 50%.
- the mixing ratio of the graft copolymer (A) and the vinyl-based (co) polymer (B) is preferably such that the weight ratio of (A) :( B) is 10:90 to 50:50. More preferably, it is 20:80 to 40:60.
- the proportion of the graft copolymer (A) is less than the above range or the proportion of the vinyl (co) polymer (B) exceeds the above range, the impact strength tends to decrease.
- flame retardancy and fluidity tend to be lowered.
- the reduced viscosity ( ⁇ sp / c) of the acetone-soluble component of the graft copolymer (A) is not particularly limited, but is preferably 0.1 to 0.6 dl / g. In other cases, the impact resistance is lowered, or the melt viscosity is increased and the moldability tends to be deteriorated. More preferably, it is 0.3 to 0.5 dl / g.
- the reduced viscosity ( ⁇ sp / c) of the vinyl (co) polymer (B) is not particularly limited, but is preferably 0.1 to 0.6 dl / g. In other cases, the impact resistance is lowered, or the melt viscosity is increased and the moldability tends to be deteriorated. More preferably, it is 0.3 to 0.5 dl / g.
- the rubbery polymer (a) is not particularly limited, but diene rubber, acrylic rubber, ethylene rubber and the like can be used. Specific examples include polybutadiene, poly (butadiene-styrene), poly (butadiene-acrylonitrile), polyisoprene, poly (butadiene-butyl acrylate), poly (butadiene-methyl methacrylate), poly (butyl acrylate-methyl methacrylate). ), Poly (butadiene-ethyl acrylate), ethylene-propylene rubber, ethylene-propylene-diene rubber, poly (ethylene-isoprene), poly (ethylene-methyl acrylate), and the like.
- rubbery polymers (a) are used in one kind or a mixture of two or more kinds.
- polybutadiene poly (butadiene-styrene), poly (butadiene-acrylonitrile), and ethylene-propylene rubber are preferably used in terms of impact resistance.
- the weight average particle diameter of the rubber polymer (a) is not particularly limited, but is preferably 0.1 to 0.5 ⁇ m from the viewpoint of the mechanical strength such as impact resistance and the balance of the appearance of the molded product. If the thickness is less than 0.1 ⁇ m, the impact strength of the resulting thermoplastic composition may be reduced, and if it exceeds 0.5 ⁇ m, the appearance of the molded product is often reduced. More preferably, it is 0.15 to 0.4 ⁇ m.
- the aromatic vinyl monomer (b) used in the graft copolymer (A) and the vinyl (co) polymer (B) is not particularly limited, but specific examples include styrene, ⁇ -methylstyrene, orthomethyl. Examples thereof include styrene, paramethyl styrene, para-t-butyl styrene, and halogenated styrene, and one or more can be used. Of these, styrene and ⁇ -methylstyrene are preferable, and styrene is particularly preferable.
- the vinyl cyanide monomer (c) used for the graft copolymer (A) and the vinyl (co) polymer (B) is not particularly limited, and specific examples include acrylonitrile and methacrylonitrile. 1 type (s) or 2 or more types can be used. Of these, acrylonitrile is preferable in terms of impact resistance.
- the unsaturated carboxylic acid alkyl ester monomer (d) used in the graft copolymer (A) and the vinyl (co) polymer (B) is not particularly limited, but is an alkyl group having 1 to 6 carbon atoms or a substituted group.
- Acrylic acid esters and / or methacrylic acid esters having an alkyl group are suitable, and one or more of them can be used. Specific examples include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, n-butyl (meth) acrylate, t-butyl (meth) acrylate, (meth) acrylic acid.
- Examples include n-hexyl, cyclohexyl (meth) acrylate, chloromethyl (meth) acrylate, 2-chloroethyl (meth) acrylate, and the like. Among them, methyl methacrylate is preferable.
- the other copolymerizable vinyl monomer (e) used in the graft copolymer (A) and the vinyl (co) polymer (B) is not particularly limited, but specific examples include N-methylmaleimide, Copolymerizable by maleimide compounds such as N-cyclohexylmaleimide and N-phenylmaleimide, unsaturated dicarboxylic acids such as maleic acid, unsaturated dicarboxylic anhydrides such as maleic anhydride, and unsaturated amide compounds such as acrylamide A vinyl compound etc. can be mentioned, These can use single or 2 types or more. A plurality of types of vinyl (co) polymers (B) can be used.
- the method for producing the graft copolymer (A) or the vinyl (co) polymer (B) is not particularly limited, and any of bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization and the like may be used.
- the method for charging the monomer is not particularly limited, and any method of initial batch charging, continuous charging of part or all of the monomer, or partial charging of part or all of the monomer may be used.
- styrene resin (I) used in the present invention include, for example, polystyrene resin, high impact polystyrene (HIPS) resin, AS resin, AAS resin, AES resin, ABS resin, MAS resin, MABS resin, and MBA resin. And alloys of these resins with other resins.
- HIPS high impact polystyrene
- the phosphate ester flame retardant (II) used in the present invention is a phosphorous such as trimethyl phosphate, triethyl phosphate, tributyl phosphate, trioctyl phosphate, tributoxyethyl phosphate, triphenyl phosphate, tricresyl phosphate, octyl diphenyl phosphate, etc. Acid esters, preferably non-halogen phosphates.
- R 1 ⁇ R 4 represents any phenyl group substituted with an organic residue containing no phenyl group or a halogen, or different from each other were respectively identical.
- R 5 R 12 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, which may be the same or different, and Y represents a direct bond, O, S, SO 2 , C (CH 3 ) 2 , CH 2 or CHPh, and Ph represents a phenyl group.
- R 1 to R 4 each represent either a phenyl group or a phenyl group substituted with a halogen-free organic residue, It may be different. Specific examples include phenyl group, tolyl group, xylyl group, cumenyl group, mesityl group, naphthyl group, indenyl group and anthryl group, but phenyl group, tolyl group, xylyl group, cumenyl group and naphthyl group are preferable. Particularly preferred are phenyl, tolyl and xylyl groups.
- R 5 to R 12 each represent hydrogen or an alkyl group having 1 to 5 carbon atoms, and may be the same or different.
- specific examples of the alkyl group having 1 to 5 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, and n-isopropyl group.
- Y represents a direct bond, O, S, SO 2 , C (CH 3 ) 2 , CH 2 , or CHPh, and Ph represents a phenyl group.
- C (CH 3 ) 2 is preferable.
- phosphate ester flame retardant (II) represented by the general formula (1) include bisphenol A bisphosphate, bisphenol A bis (diphenyl phosphate), hydroquinone bisphosphate, resorcinol bis (dixylyl phosphate), and resorcinol.
- examples thereof include bisphosphate, resorcinol (diphenyl phosphate), resorcinol bis (diphenyl phosphate), and substituted or condensates thereof.
- resorcinol bis (dixyl phosphate), resorcinol bis (diphenyl phosphate) and the like are excellent in balance between rigidity and flame retardancy, and are preferably used. These may be used alone or in combination of two or more.
- the amount of the phosphate ester flame retardant (II) is 6 to 15 parts by weight, more preferably 8 to 12 parts by weight, based on 100 parts by weight of the styrene resin (I).
- the blending amount of the phosphate ester flame retardant (II) is less than the above range, the flame retardancy is not sufficient, and conversely, when exceeding the above range, the mechanical strength and heat resistance of the obtained thermoplastic resin are reduced, There is a tendency for the amount of gas generation to increase.
- the aromatic carbonate oligomer (III) used in the present invention refers to a low molecular weight aromatic carbonate oligomer having a viscosity average molecular weight [Mv] of 1,000 to 10,000.
- the aromatic carbonate oligomer (III) is an aromatic dihydroxy typically exemplified by 2,2-bis (4-hydroxyphenyl) propane and 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane. It can be obtained by reacting a compound with a carbonate precursor typically exemplified by phosgene.
- aromatic dihydroxy compound examples include 2,2-bis (4-hydroxyphenyl) propane (hereinafter sometimes referred to as bisphenol A), 1,1-bis (4-hydroxyphenyl) ethane, 2,2- Bis (4-hydroxyphenyl) butane, 2,2-bis (4-hydroxyphenyl) octane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, 1,1-bis (3-tert-butyl) -4-hydroxyphenyl) propane, 2,2-bis (4-hydroxy-3,5-dimethylphenyl) propane, 2,2-bis (3-phenyl-4-hydroxyphenyl) propane, 2,2-bis ( 3-cyclohexyl-4-hydroxyphenyl) propane, 1,1-bis (4-hydroxyphenyl) -1-phenylethane, bis (4- Bis (hydroxyaryl) alkanes exemplified by droxyphenyl) diphenylmethane and the like; 1,1-bis (4-hydroxyphenyl) cyclopentane, 1,1-bis (4-hydroxy
- carbonyl halide As the carbonate precursor to be reacted with the aromatic dihydroxy compound, carbonyl halide, carbonate ester, haloformate, etc. are used. Specifically, phosgene; diaryl carbonates such as diphenyl carbonate, ditolyl carbonate; dimethyl carbonate, diethyl carbonate, etc. Dialkyl carbonates; dihaloformates of dihydric phenols and the like. Of these, phosgene is often used preferably. These carbonate precursors may also be used alone or in combination of two or more.
- the production method of the aromatic carbonate oligomer (III) used in the present invention is not particularly limited, and can be produced by a conventionally known method. Specifically, the interfacial polymerization method (phosgene method) ), A melt transesterification method, a solution polymerization method (pyridine method), a ring-opening polymerization method of a cyclic carbonate compound, a solid phase transesterification method of a prepolymer, and the like.
- the pH is usually kept at 9 or higher in the presence of an organic solvent inert to the reaction and an aqueous alkaline solution, and the aromatic dihydroxy compound, and the molecular weight adjusting agent (end terminator) and aromatic as necessary.
- a polymerization catalyst such as a tertiary amine or a quaternary ammonium salt is added and interfacial polymerization is performed to obtain a polycarbonate.
- the addition of the molecular weight regulator is not particularly limited as long as it is from the time of phosgenation to the start of the polymerization reaction.
- the reaction temperature is, for example, 0 to 40 ° C.
- the reaction time is, for example, several minutes (for example, 10 minutes) to several hours (for example, 6 hours).
- organic solvent applicable to the interfacial polymerization any organic solvent that is inert to the interfacial polymerization reaction and can be used as long as it does not mix with water can be used.
- organic solvents such as dichloromethane, 1,2-dichloroethane, chloroform, monochlorobenzene and dichlorobenzene, and aromatic hydrocarbons such as benzene, toluene and xylene.
- alkali compound used in the alkaline aqueous solution include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide.
- Examples of molecular weight regulators applicable to interfacial polymerization include compounds having a monovalent phenolic hydroxyl group and phenyl chloroformate.
- Examples of the compound having a monovalent phenolic hydroxyl group include m-methylphenol, p-methylphenol, m-propylphenol, p-propylphenol, p-tert-butylphenol and p-long chain alkyl-substituted phenol.
- the amount of the molecular weight regulator used is preferably 0.5 mol or more, more preferably 1 mol or more, per 100 mol of the aromatic dihydroxy compound.
- the polymerization catalyst includes tertiary amines such as trimethylamine, triethylamine, tributylamine, tripropylamine, trihexylamine, pyridine; trimethylbenzylammonium chloride, tetrabutylammonium chloride, tetramethylammonium chloride. And quaternary ammonium salts such as triethylbenzylammonium chloride and trioctylmethylammonium chloride.
- tertiary amines such as trimethylamine, triethylamine, tributylamine, tripropylamine, trihexylamine, pyridine
- trimethylbenzylammonium chloride tetrabutylammonium chloride, tetramethylammonium chloride.
- quaternary ammonium salts such as triethylbenzylammonium chloride and trioctylmethylammonium chloride.
- the reaction by the melt transesterification method is, for example, a transesterification reaction between a carbonic acid diester and an aromatic dihydroxy compound.
- aromatic dihydroxy compound can be the same as those described above, and these aromatic dihydroxy compounds can be used alone or in admixture of two or more. Of these, bisphenol A is preferred.
- Examples of the carbonic acid diester include dialkyl carbonate compounds such as dimethyl carbonate, diethyl carbonate and di-tert-butyl carbonate, and substituted diphenyl carbonates such as diphenyl carbonate and ditolyl carbonate.
- the carbonic acid diester is preferably diphenyl carbonate, dimethyl carbonate or substituted diphenyl carbonate, more preferably diphenyl carbonate or dimethyl carbonate, and particularly preferably diphenyl carbonate.
- a polycarbonate having a desired molecular weight and terminal hydroxyl group amount can be obtained by adjusting the mixing ratio of the carbonic acid diester and the aromatic dihydroxy compound or adjusting the degree of vacuum during the reaction.
- an adjustment method in which a terminal terminator is added separately during the reaction is also well known.
- the terminal terminator include monohydric phenols, monovalent carboxylic acids, and carbonic acid diesters.
- the amount of terminal hydroxyl groups greatly affects the thermal stability, hydrolysis stability, color tone, etc. of the product polycarbonate. Although it depends on the application, in order to have practical physical properties, it is preferably 1,000 ppm or less, more preferably 700 ppm or less.
- the amount of terminal hydroxyl groups is 100 ppm or more. By setting it as the amount of such terminal hydroxyl groups, the fall of molecular weight can be suppressed and a color tone can also be made more favorable. Accordingly, it is preferable to use an equimolar amount or more of carbonic acid diester, more preferably 1.01 to 1.30 mol, more preferably 1.02 to 1.2 mol per mol of the aromatic dihydroxy compound. It is particularly preferred to be used in a ratio.
- a transesterification catalyst is usually used.
- the transesterification catalyst is not particularly limited, but an alkali metal compound and / or an alkaline earth metal compound is preferable.
- a basic compound such as a basic boron compound, a basic phosphorus compound, a basic ammonium compound, or an amine compound can be used in combination.
- the reaction is performed at a temperature of 100 to 320 ° C., and finally, by-products such as aromatic hydroxy compounds under a reduced pressure of 2.6 ⁇ 10 2 Pa (2 mmHg) or less.
- a method of performing a melt polycondensation reaction while removing water is exemplified.
- the melt polycondensation can be carried out batchwise or continuously, but is preferably carried out continuously in consideration of the stability of the aromatic carbonate oligomer (III) component.
- the catalyst deactivator in the transesterification polycarbonate it is preferable to use a compound that neutralizes the catalyst, for example, a sulfur-containing acidic compound or a derivative formed therefrom.
- the compound that neutralizes such a catalyst is preferably added in an amount of 0.5 to 10 equivalents, more preferably 1 to 5 equivalents, relative to the alkali metal contained in the catalyst.
- the compound that neutralizes such a catalyst is preferably added in the range of 1 to 100 ppm, more preferably 1 to 20 ppm relative to the polycarbonate.
- the molecular weight of the aromatic carbonate oligomer (III) used in the present invention is in the range of 1,000 to 10,000 in terms of viscosity average molecular weight [Mv] converted from the intrinsic viscosity [ ⁇ ].
- the viscosity average molecular weight [Mv] is less than 1,000, there is a concern that the molded product may bleed out during molding, and the impact resistance is lowered. On the other hand, if it exceeds 10,000, the flame retardancy is lowered and the flame retardancy of UL94 V-2 is not exhibited stably.
- the viscosity average molecular weight [Mv] is preferably 1,500 to 9,000, more preferably 2,000 to 8,000.
- the said viscosity average molecular weight [Mv] by mixing the 2 or more types of aromatic carbonate oligomer from which a viscosity average molecular weight differs.
- an aromatic carbonate oligomer whose viscosity average molecular weight is not included in the preferred range can also be used for mixing.
- the aromatic carbonate oligomer (III) used in the present invention is not particularly limited as long as it is obtained by the above-described method.
- the viscosity average molecular weight [Mv] having a repeating structural unit represented by the general formula 2 is 1 , 10,000 to 10,000 are preferably used.
- Z represents a substituted or unsubstituted alkylidene group, cyclohexylidene group, oxygen atom, sulfur atom or sulfonyl group having 2 to 5 carbon atoms.
- R 13 to R 16 represent a hydrogen atom or 1 to 6 alkyl groups, which may be the same or different.
- the addition amount of the aromatic carbonate oligomer (III) used in the present invention is 0.1 to 3 parts by weight, preferably 0.2 to 2.5 parts by weight, based on 100 parts by weight of the styrene resin (I). More preferably, it is 0.3 to 2 parts by weight. If the addition amount of the aromatic carbonate oligomer (III) is less than the above range, the flame retardancy is not sufficient, conversely, if it exceeds the above range, the mechanical strength and heat resistance of the resulting thermoplastic resin composition is reduced, This tends to increase the amount of gas generated, which is not preferable.
- the flame-retardant styrene-based thermoplastic resin composition of the present invention it is preferable to add an antioxidant from the viewpoint of preventing deterioration at the time of melting, since it does not adversely affect the flame retardancy particularly when added.
- Phosphorus-containing organic compound antioxidants (IV) are preferred.
- Examples of the phosphorus-containing organic compound-based antioxidant (IV) include trisnonylphenyl phosphite, tris (2,4-di-t-butylphenyl) phosphite, distearyl pentaerythritol diphosphite, bis (2,4- Di-t-butylphenyl) pentaerythritol phosphite, bis (2,6-di-t-butyl-4-methylphenyl) pentaerythritol phosphite, 2,2-methylenebis (4,6-di-t-butylphenyl) ) Octyl phosphite, tetrakis (4,6-di-t-butylphenyl) -4,4, -biphenylene-di-phosphonite, etc. are used, among which distearyl pentaerythritol diphosphite is preferably used.
- the blending amount of the phosphorus-containing organic compound-based antioxidant (IV) in the present invention is preferably 0.1 to 1 part by weight, more preferably 0.3 to 0.8 part per 100 parts by weight of the styrene resin (I). Parts by weight. If the blending amount is less than the above range, the effect of preventing deterioration at the time of melting is not sufficient.
- a silicone compound (V) in the flame-retardant styrene-based thermoplastic resin composition of the present invention, it is preferable to add a silicone compound (V) from the viewpoint of improving flame retardancy.
- the silicone compound (V) include silicone powder, silicone rubber, silicone oil, silicone resin, and derivatives thereof with improved compatibility and reactivity.
- the silicone compound (V) may contain a silica filler, and a generally known method can be applied as the mixing method.
- the blending amount of the silicone compound (V) in the present invention is preferably 0.1 to 1 part by weight, more preferably 0.3 to 0.8 part by weight with respect to 100 parts by weight of the styrene resin. If the blending amount is less than the above range, the effect of improving the flame retardancy is not sufficient. Conversely, if the blending amount exceeds the above range, fluidity and mechanical properties are undesirably lowered.
- the method for producing the flame-retardant styrene-based thermoplastic resin composition of the present invention is not particularly limited, and (I) to (V) are mixed with a mixer such as a V-type blender, a super mixer, a super floater, and a Henschel mixer.
- the composition may be a premixed composition, but is usually a mixture obtained by uniformly melt-mixing the premixed mixture.
- Such a mixture can be obtained by using a kneading means for the preliminary mixture, for example, preferably melt-kneaded at a temperature of about 200 to 280 ° C., more preferably about 220 to 260 ° C., and pelletized.
- melt-kneading and pelletizing means include a method in which a resin composition is melted and extruded using various melt mixers, for example, a kneader, a single-screw or twin-screw extruder, and pelletized by a pelletizer. It is done.
- the flame-retardant styrene-based thermoplastic resin composition of the present invention includes a polyvinyl chloride resin, a polyolefin resin such as polyethylene and polypropylene, and a polyamide resin such as nylon 6 and nylon 66, as long as the object of the present invention is not impaired.
- a polyvinyl chloride resin such as polyethylene and polypropylene
- a polyamide resin such as nylon 6 and nylon 66
- the range may vary depending on the blended components, but 100 parts by weight of the styrene resin (I) The amount is preferably 10 parts by weight or less.
- the flame retardant styrene-based thermoplastic resin composition of the present invention may further include glass fiber, glass powder, glass beads, glass flake, alumina, alumina fiber, carbon fiber, graphite fiber, stainless steel fiber, if necessary.
- Inorganic fillers such as whisker, potassium titanate fiber, wollastonite, asbestos, hard clay, calcined clay, talc, kaolin, mica, calcium carbonate, magnesium carbonate, aluminum oxide and minerals, hindered phenols, benzotriazoles, Benzophenone-based, benzoate-based and cyanoacrylate-based UV absorber lubricants, higher fatty acids, acid esters and acid amides, and higher alcohol and other lubricants and plasticizers, montanic acid and salts thereof, esters thereof, half esters and stearyls Arco Mold release agents such as ruthenium, stearamide and ethylene wax, anti-coloring agents such as phosphite and hypophosphite, neutralizing
- the flame-retardant styrene-based thermoplastic resin composition of the present invention obtained as described above is a known one that is currently used for molding thermoplastic resins such as injection molding, extrusion molding, blow molding, vacuum molding, compression molding and gas assist molding.
- the molding method is not particularly limited.
- Weight average rubber particle diameter It was determined by the sodium alginate method described in “Rubber Age Vol. 88 p. 484-490 (1960) by E. Schmidt, PH Biddison”. That is, utilizing the fact that the diameter of the polybutadiene particles to be creamed differs depending on the concentration of sodium alginate, the particle size of 50% cumulative weight fraction was determined from the weight proportion of cream and the cumulative weight fraction of sodium alginate concentration.
- [V-2] It does not burn for more than 30 seconds after the first and second flame contact, and the glow extinguishing time after the second flame contact is within 60 seconds.
- the gauze placed 30 cm below may ignite.
- the total of the flammable burning times of the five burning test pieces is within 250 seconds.
- Charpy impact strength was measured under the conditions of V notch (remaining width 8.0 mm), 23 ° C., and 50% RH in accordance with ISO 179 (2000).
- the graft ratio of this styrene-based graft copolymer (A) was 35%, and the reduced viscosity ⁇ sp / c of the acetone-soluble component was 0.35 dl / g.
- Graft copolymer (A) Polybutadiene latex (weight average rubber particle diameter 0.3 ⁇ m, gel content 85%) 50 parts by weight (in terms of solid content), pure water 200 parts by weight, sodium formaldehyde sulfoxylate 0.4 parts by weight, ethylenediaminetetraacetate sodium 1 part by weight, 0.01 part by weight of ferrous sulfate and 0.1 part by weight of sodium phosphate are charged in a reaction vessel, and after nitrogen substitution, the temperature is adjusted to 65 ° C., and 11.5 parts by weight of styrene and acrylonitrile are added while stirring.
- a monomer mixture of 0 part by weight, 34.5 parts by weight of methyl methacrylate and 0.3 part by weight of n-dodecyl mercaptan was continuously added dropwise over 4 hours.
- a mixture of 0.25 parts by weight of cumene hydroperoxide, 2.5 parts by weight of sodium laurate as an emulsifier and 25 parts by weight of pure water was continuously added dropwise over 5 hours.
- the polymerization was terminated.
- the finished latex was coagulated with 1.5% sulfuric acid, then neutralized with sodium hydroxide, washed, centrifuged and dried to obtain a powdered graft copolymer.
- the graft ratio of the graft component of the obtained graft copolymer (A) was 45%.
- a monomer mixture comprising 70.0 parts by weight of styrene, 30.0 parts by weight of acrylonitrile, 0.15 parts by weight of n-octyl mercaptan and 0.01 parts by weight of 1,1-di (t-butylperoxy) cyclohexane was continuously fed to the polymerization tank at 150 kg / hour, and continuous bulk polymerization was performed while maintaining the polymerization temperature at 130 ° C. and the internal pressure of 0.08 MPa. The polymerization rate of the polymerization reaction mixture at the exit from the polymerization vessel was controlled between 74 and 76%.
- the polymerization reaction product thus obtained was recovered by distilling unreacted monomer from the vent port under reduced pressure using a twin-screw extruder-type demonomer, discharging it into a strand with an apparent polymerization rate of 99% or more, and pelleting with a cutter.
- the vinyl (co) polymer (B) -1 was obtained.
- the reduced viscosity ⁇ sp / c of the vinyl (co) polymer (B) -1 was 0.53 dl / g.
- Vinyl-based (co) polymer (B) -2 A monomer mixture comprising 70.0 parts by weight of styrene, 30.0 parts by weight of acrylonitrile, 0.2 parts by weight of n-octyl mercaptan and 0.01 parts by weight of 1,1-di (t-butylperoxy) cyclohexane, Polymerization was conducted in the same manner as the vinyl (co) polymer (B) -1 to obtain a vinyl (co) polymer (B) -2. The reduced viscosity ⁇ sp / c of this vinyl (co) polymer (B) -2 was 0.43 dl / g.
- Vinyl-based (co) polymer (B) -3 In a 20 liter autoclave, a solution prepared by dissolving 0.05 parts by weight of methyl methacrylate / acrylamide copolymer (described in Japanese Patent Publication No. 45-24151) in 165 parts by weight of pure water was stirred at 400 rpm. Was replaced with nitrogen gas. Next, a mixed solution of 5.0 parts by weight of acrylonitrile, 25 parts by weight of styrene, 70 parts by weight of methyl methacrylate, 0.4 parts by weight of azobisisobutyronitrile and 0.30 parts by weight of t-dodecyl mercaptan was added to the reaction system.
- the mixture was added with stirring, and the copolymerization reaction was started at 60 ° C.
- the temperature was further raised to 65 ° C over 15 minutes, and then raised to 100 ° C over 50 minutes. After reaching the temperature, the temperature was controlled at 100 ° C. for 30 minutes, and then cooling, polymer separation, washing, and drying were performed to obtain a bead-like vinyl (co) polymer (B) -3.
- the resulting vinyl (co) polymer (B) -3 had a reduced viscosity ⁇ sp / c of 0.32 dl / g.
- Phosphate ester flame retardant (II) Phosphate ester flame retardant (II) -1 Resorcinol bis (dixylyl phosphate) (trade name: PX200, manufactured by Daihachi Chemical Industry, phosphorus content: 9.0%) was prepared.
- Phosphate ester flame retardant (II) -2 Resorcinol bis (diphenyl phosphate) (trade name: CR733S, manufactured by Daihachi Chemical Industry, phosphorus content: 10.5%) was prepared.
- Aromatic carbonate oligomer (III) Solution A was prepared by dissolving 5.472 kg (24 mol) of bisphenol A, 6.0 g of hydrosulfide, and 1.028 kg of p-tert-butylphenol in 42.1 L of an 8 wt% aqueous sodium hydroxide solution. Further, while stirring 24.0 L of dichloromethane, while maintaining the temperature at 15 ° C., 3.0 kg of phosgene was blown in over 50 minutes to prepare Solution B. Next, while stirring the solution A, the solution B was added to the solution A and reacted. After the reaction, 12.0 mL of triethylamine was added, and the mixture was stirred and polymerized at 20 to 25 ° C.
- the reaction solution was separated into an aqueous phase and an organic phase, the organic phase was neutralized with phosphoric acid, and washing with water was repeated until the conductivity of the washing solution (aqueous phase) became 10 ⁇ S / cm or less.
- the obtained polymer solution was dropped into warm water maintained at 45 ° C., and the solvent was removed by evaporation to obtain a white powdery precipitate. This precipitate was filtered and dried at 110 ° C. for 24 hours to obtain an aromatic carbonate oligomer (III).
- Aromatic polycarbonate Taflon A1900 bisphenol A polycarbonate resin manufactured by Idemitsu Petrochemical Co., Ltd., viscosity average molecular weight [Mv]: 19,000, modified with terminal p-tert-butylphenoxy group was prepared.
- Phosphorus-containing organic compound antioxidant (IV) Distearyl pentaerythritol diphosphite (trade name: “ADEKA STAB” PEP-8, manufactured by ADEKA Corporation) was prepared.
- Silicone compound (V) Silicone powder (trade name: DC4-7081, manufactured by Toray Dow Corning Co., Ltd.) was prepared.
- the flame-retardant styrene-based thermoplastic resin compositions of the present invention were all excellent in balance of flame retardancy, fluidity, heat resistance and mechanical strength.
- Examples 7 and 8 show examples in which polylactic acid, which is an aliphatic polyester resin described in Reference Example 6, is added within a range that does not impair the object of the present invention.
- Comparative Examples 3 and 9 the addition amount of the phosphate ester flame retardant (II) was small, and the flame retardancy was inferior to Examples 1 and 11, respectively.
- Comparative Examples 4 and 10 the addition amount of the phosphate ester compound (II) was large, and compared with Examples 1 and 11, the mechanical strength was inferior and the amount of gas generated was large.
- the flame-retardant styrene-based thermoplastic resin composition and molded product thereof of the present invention are excellent in flame retardancy and molding processability, such as electrical / electronic parts, automobile parts, mechanical mechanism parts, OA equipment, home appliances, etc. It can be used for various applications such as housings and parts thereof.
- various gears for example, various gears, various cases, sensors, LEP lamps, connectors, sockets, resistors, relay cases, switches, coil bobbins, capacitors, variable capacitor cases, optical pickups, oscillators, various terminal boards, transformers, Represented by plugs, printed wiring boards, tuners, speakers, microphones, headphones, small motors, magnetic head bases, power modules, housings, semiconductors, liquid crystals, FDD carriages, FDD chassis, motor brush holders, parabolic antennas, computer-related parts, etc.
- Audio equipment parts such as lighting parts, refrigerator parts, air conditioner parts, typewriter parts, word processor parts, household electrical appliance parts, office computer related parts, telephone related parts, facsimile related parts, copying machine related parts , Cleaning jigs, oilless bearings, stern bearings, underwater bearings and other bearings, motor-related parts such as motor parts, lighters and typewriters, optics such as microscopes, binoculars, cameras and watches Equipment, precision machinery-related parts: alternator terminals, alternator connectors, IC regulators, various valves such as exhaust gas valves, fuel-related / exhaust / intake-related pipes, air intake nozzle snorkel, intake manifold, fuel pump, engine coolant joint, Carburetor main body, carburetor spacer, exhaust gas sensor, cooling water sensor,
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Abstract
Description
で示されるものが、難燃化の効率の点からより好ましい。
η=limηsp/c(c→0)。
これらの中で好ましいのは、ビス(4-ヒドロキシフェニル)アルカン類であり、特に好ましいのは、ビスフェノールAである。これらの芳香族ジヒドロキシ化合物は、1種類でも2種類以上を組み合わせて用いてもよい。
「Rubber Age Vol.88 p.484~490(1960)by E.Schmidt, P.H.Biddison」記載のアルギン酸ナトリウム法によって求めた。すなわち、アルギン酸ナトリウムの濃度によりクリーム化するポリブタジエン粒子径が異なることを利用して、クリーム化した重量割合とアルギン酸ナトリウム濃度の累積重量分率より累積重量分率50%の粒子径を求めた。
グラフト共重合体所定量(m)にアセトンを加え、3時間還流し、この溶液を8800r/min(10000G)で40分間遠心分離後、不溶分を濾取し、この不溶分を60℃で5時間減圧乾燥し、重量(n)を測定した。グラフト率は、下記式より算出した。
グラフト率(%)={[(n)-(m)×L]/[(m)×L]}×100
ここで、Lはグラフト共重合体のゴム含有率である。
サンプル1gにアセトン200mlを加え、3時間還流し、この溶液を8800r/min(10000G)で40分間遠心分離した後、不溶分を濾過する。濾液をロータリーエバポレーターで濃縮し、析出物(アセトン可溶分)を60℃で5時間減圧乾燥後、0.4g/100ml(メチルエチルケトン、30℃)に調整し、ウベローデ粘度計を用い[ηsp/c]を測定した。
サンプル1gをジクロロメタン100cm3に均一溶解させ、ウベローデ粘度計を用い比粘度[ηsp]を測定した。更に濃度を変えて同様に比粘度を測定し、濃度[c]と[ηsp/c]とをプロットしたグラフを濃度ゼロ側へ外挿した値を極限粘度[η]とした。即ち、η=limηsp/c(c→0)より算出した。
射出成形により得た0.75mm厚および3mm厚の難燃性評価用試験片について、UL94で定められている評価基準に従い難燃性を評価した。燃焼試験片を垂直に保持し、燃焼試験片の下端中央に長さ20mmの青色炎を10秒間接炎後、炎を離して燃焼時間を測定した。その後、一回目の炎が消火して再び10秒間接炎後の燃焼時間とグロー消火時間を測定した。判定は次のとおりである。
1回目と2回目の接炎後30秒以上燃えず、2回目の接炎後のグロー消火時間は60秒以内である。30cm下方に置かれたガーゼは着火してもよい。なお、測定はn=5で実施する。更に、5本の燃焼試験片の有炎燃焼時間の合計が、250秒以内である。
1回目と2回目の接炎後30秒より燃焼もしくは、2回目の接炎後のグロー消火時間は60秒以上である。なお、測定はn=5で実施する。また、5本の燃焼試験片の有炎燃焼時間の合計が、250秒より大きくなる場合もNGとなる。
80℃熱風乾燥機中で3時間乾燥した熱可塑性樹脂組成物のペレットを、ISO-1133(2005年)に準拠し、220℃、98Nの条件で測定した。
ISO 75(2004年)の規定に準拠し、試験片厚み4.0mm、1.8MPaの条件で測定した。
ISO 179(2000年)の規定に準拠し、Vノッチ入り(残り幅8.0mm)、23℃、50%RHの条件で測定した。
80℃熱風乾燥機中で3時間予備乾燥した熱可塑性樹脂組成物のペレットを3g秤量し、180℃に設定したギアオーブン中で3時間加熱処理を実施後、23℃に温調した室内でデシケーター中に30分間保管し安定化させた後に秤量を行い、加熱処理前からの重量減少率を算出した。測定はn=3で実施し、これらの平均値を以て揮発分とした。
グラフト共重合体(A)-1
窒素置換した反応器に、純水120重量部、ブドウ糖0.5重量部、ピロリン酸ナトリウム0.5重量部、硫酸第一鉄0.005重量部およびポリブタジエンラテックス(重量平均ゴム粒子径0.3μm、ゲル含有率85%)60重量部(固形分換算)を仕込み、撹拌しながら反応器内の温度を65℃に昇温した。内温が65℃に達した時点を重合開始としてモノマー(スチレン30重量部およびアクリロニトリル10重量部)およびt-ドデシルメルカプタン0.3重量部からなる混合物を5時間かけて連続滴下した。同時に並行してクメンハイドロパーオキサイド0.25重量部,オレイン酸カリウム2.5重量部および純水25重量部からなる水溶液を7時間かけて連続滴下し、反応を完結させた。得られたスチレン系共重合体ラテックスを硫酸で凝固し、苛性ソーダで中和した後、洗浄、濾過、乾燥してグラフト共重合体(A)を得た。このスチレン系グラフト共重合体(A)のグラフト率は35%、アセトン可溶分の還元粘度ηsp/cは0.35dl/gであった。
ポリブタジエンラテックス(重量平均ゴム粒子径0.3μm、ゲル含率85%)50重量部(固形分換算)、純水200重量部、ナトリウムホルムアルデヒドスルホキシレート0.4重量部、エチレンジアミン四酢酸ナトリウム0.1重量部、硫酸第一鉄0.01重量部およびリン酸ナトリウム0.1重量部を反応容器に仕込み、窒素置換後65℃に温調し、撹拌下スチレン11.5重量部、アクリロニトリル4.0重量部、メタクリル酸メチル34.5重量部及びn-ドデシルメルカプタン0.3重量部の単量体混合物を4時間かけて連続滴下した。同時に並行してクメンハイドロパーオキサイド0.25重量部、乳化剤であるラウリン酸ナトリウム2.5重量部及び純水25重量部の混合物を5時間かけて連続滴下し、滴下終了後さらに1時間保持して重合を終了させた。重合を終了したラテックスを1.5%硫酸で凝固し、次いで水酸化ナトリウムで中和、洗浄、遠心分離、乾燥して、パウダー状のグラフト共重合体を得た。得られたグラフト共重合体(A)のグラフト成分のグラフト率は45%であった。
ビニル系(共)重合体(B)-1
単量体蒸気の蒸発還流用コンデンサーおよびヘリカルリボン翼を有する2m3の完全混合型重合槽と、単軸押出機型予熱機と、2軸押出機型脱モノマー機および脱モノマー機の先端から1/3長のバレル部にタンデムに接続した加熱装置を有する2軸押出機型フィーダーとからなる連続式塊状重合装置を用いて、次のように、共重合と樹脂成分の混合を実施した。
スチレン70.0重量部、アクリロニトリル30.0重量部、n-オクチルメルカプタン0.2重量部および1,1-ジ(t-ブチルパーオキシ)シクロヘキサン0.01重量部からなる単量体混合物を、ビニル系(共)重合体(B)-1と同様に重合して、ビニル系(共)重合体(B)-2を得た。このビニル系(共)重合体(B)-2の還元粘度ηsp/cは0.43dl/gであった。
20リットルのオートクレーブに0.05重量部のメタクリル酸メチル/アクリルアミド共重合体(特公昭45-24151号公報記載)を165重量部の純水に溶解した溶液を入れて400rpmで撹拌し、系内を窒素ガスで置換した。次に、アクリロニトリル5.0重量部、スチレン25重量部、メタクリル酸メチル70重量部、アゾビスイソブチロニトリル0.4重量部およびt-ドデシルメルカプタン0.30重量部の混合溶液を反応系を撹拌しながら添加し、60℃にて共重合反応を開始した。さらに15分かけて65℃まで昇温した後、50分かけて100℃まで昇温した。到達後30分間100℃でコントロールした後、冷却、ポリマーの分離、洗浄、乾燥を行い、ビーズ状のビニル系(共)重合体(B)-3を得た。得られたビニル系(共)重合体(B)-3の還元粘度ηsp/cは0.32dl/gであった。
リン酸エステル系難燃剤(II)-1
レゾルシノールビス(ジキシリルホスフェート)(商品名:PX200、大八化学工業製、リン含有量:9.0%)を準備した。
・ リン酸エステル系難燃剤(II)-2
レゾルシノールビス(ジフェニルホスフェート)(商品名:CR733S、大八化学工業製、リン含有量:10.5%)を準備した。
8重量%の水酸化ナトリウム水溶液42.1Lに、ビスフェノールA5.472kg(24mol)、ハイドロサルファイド6.0g、p-tert-ブチルフェノール1.028kgを溶解し、溶液Aを調整した。また、ジクロロメタン24.0Lを攪拌しつつ、15℃に保ちながらホスゲン3.0kgを50分かけて吹き込み、溶液Bを調整した。次に、溶液Aを攪拌しながら、溶液Aに溶液Bを加え反応させた。反応後、12.0mLのトリエチルアミンを加え、20~25℃にて約1時間攪拌し重合させた。重合終了後、反応液を水相と有機相とに分離し、有機相をリン酸で中和し、洗液(水相)の導電率が10μS/cm以下になるまで水洗を繰り返した。得られた重合体溶液を、45℃に保った温水に滴下し、溶媒を蒸発除去して白色粉末状沈殿物を得た。この沈殿物を濾過し、110℃で24時間乾燥し、芳香族カーボネートオリゴマー(III)を得た。
タフロンA1900(出光石油化学株式会社製ビスフェノールAポリカーボネート樹脂、粘度平均分子量[Mv]:19,000、末端p-tert-ブチルフェノキシ基変性)を準備した。
NatureWorks社製のポリ乳酸(重量平均分子量200,000、L-乳酸単位99%、D-乳酸単位1%、融点175℃のポリ-L-乳酸)を準備した。
ジステアリルペンタエリスリトールジホスファイト(商品名:“アデカスタブ”PEP-8、株式会社ADEKA製)を準備した。
シリコーン粉末(商品名:DC4-7081、東レ・ダウコーニング株式会社製)を準備した。
参考例で示したグラフト共重合体(A)、ビニル系(共)重合体(B)、リン酸エステル系難燃剤(II)、芳香族カーボネートオリゴマー(III)、脂肪族ポリエステル樹脂、含リン有機化合物系酸化防止剤(IV)、シリコーン化合物(V)を表1に示した配合比で混合し、ベント付40mm単軸押出機を用いシリンダー設定温度230℃で溶融混練、押出しを行うことによって、ペレット状の難燃性熱可塑性樹脂組成物を製造した。得られたペレットを80℃熱風乾燥機中で3時間予備乾燥し、住友重機械工業社製電動射出成形機SE50を用いシリンダー温度230℃、金型温度60℃でISO527(1993年)で規定された引張試験片(全長150mm、試験部の幅10mm、厚さ4mm)を成形した。いずれも成形性に問題なく、良品を採取可能であった。本成形片を加工し、荷重たわみ温度、シャルピー衝撃強度測定用の試験片を作製した。実施例1~13の各物性を表1に示す。
参考例で示したグラフト共重合体(A)、ビニル系(共)重合体(B)、リン酸エステル系難燃剤(II)、芳香族カーボネートオリゴマー(III)、脂肪族ポリエステル樹脂、芳香族ポリカーボネート、含リン有機化合物系酸化防止剤(IV)、シリコーン化合物(V)を表2に示した配合比で混合し、実施例と同様の方法でペレット状の難燃性熱可塑性樹脂組成物を製造した。得られたペレットを実施例と同様の方法で成形し、得られた成形片を荷重たわみ温度、シャルピー衝撃強度測定用試験片を作製した。比較例1~11の各物性を表2に示す。
Claims (9)
- スチレン系樹脂(I)100重量部に対し、リン酸エステル系難燃剤(II)6~15重量部および粘度平均分子量[Mv]が1,000~10,000である芳香族カーボネートオリゴマー(III)0.1~3重量部を含む、難燃性スチレン系熱可塑性樹脂組成物。
- スチレン系樹脂(I)が、ゴム質重合体(a)に、芳香族ビニル系単量体(b)、シアン化ビニル系単量体(c)、不飽和カルボン酸アルキルエステル系単量体(d)および共重合可能なその他のビニル系単量体(e)から選ばれた1種以上の単量体をグラフト共重合せしめたグラフト共重合体(A)と、芳香族ビニル系単量体(b)、シアン化ビニル系単量体(c)、不飽和カルボン酸アルキルエステル系単量体(d)および共重合可能なその他のビニル系単量体(e)から選ばれた1種以上の単量体からなるビニル系(共)重合体(B)が、重量比10:90~50:50の割合で含まれる組成物である、請求項1~3のいずれかに記載の難燃性スチレン系熱可塑性樹脂組成物。
- リン酸エステル系難燃剤(II)がレゾルシノールビス(ジキシリルホスフェート)(f)および/またはレゾルシノールビス(ジフェニルホスフェート)(g)である、請求項1~4のいずれかに記載の難燃性スチレン系熱可塑性樹脂組成物。
- さらに含リン有機化合物系酸化防止剤(IV)0.1~1重量部を含む、請求項1~5のいずれかに記載の難燃性スチレン系熱可塑性樹脂組成物。
- さらにシリコーン化合物(V)0.1~1重量部を含む、請求項1~6のいずれかに記載の難燃性スチレン系熱可塑性樹脂組成物。
- 請求項1~7のいずれかに記載の難燃性スチレン系熱可塑性樹脂組成物を成形してなる、成形品。
- 難燃性がUL94 V-2基準を満たす、請求項8に記載の成形品。
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EP11826855.6A EP2620473B1 (en) | 2010-09-22 | 2011-09-21 | Flame-retardant styrene thermoplastic resin composition and molded product thereof |
CN201180046024.5A CN103119096B (zh) | 2010-09-22 | 2011-09-21 | 阻燃性苯乙烯类热塑性树脂组合物及其成型品 |
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---|---|---|---|---|
JP2012072202A (ja) * | 2010-09-27 | 2012-04-12 | Nippon A&L Inc | 熱可塑性樹脂組成物及び成形体 |
CN112358702A (zh) * | 2018-04-29 | 2021-02-12 | 徐菡 | 一种抗菌阻燃hips复合材料 |
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4524151Y1 (ja) | 1968-07-09 | 1970-09-22 | ||
JPS5924736A (ja) | 1982-08-02 | 1984-02-08 | Adeka Argus Chem Co Ltd | 難燃性ポリスチレン系樹脂組成物 |
JPS604550A (ja) | 1983-06-21 | 1985-01-11 | Mitsubishi Gas Chem Co Inc | 成形用ポリカ−ボネ−ト樹脂組成物 |
JPH05247315A (ja) | 1992-03-05 | 1993-09-24 | Asahi Chem Ind Co Ltd | 良流動耐熱耐衝撃性スチレン系樹脂組成物 |
JPH06157866A (ja) | 1992-11-20 | 1994-06-07 | Asahi Chem Ind Co Ltd | 難燃性樹脂組成物 |
JPH0733971A (ja) * | 1993-07-16 | 1995-02-03 | Nippon Steel Chem Co Ltd | 難燃非滴下性樹脂組成物 |
JPH0770448A (ja) | 1993-09-07 | 1995-03-14 | Asahi Chem Ind Co Ltd | 耐ドリップ性と流動性の優れた難燃耐熱性樹脂組成物 |
JPH115869A (ja) | 1997-06-17 | 1999-01-12 | Asahi Chem Ind Co Ltd | 液状リン系難燃剤 |
JPH11140270A (ja) | 1997-11-11 | 1999-05-25 | Sumika Abs Latex Kk | 難燃性熱可塑性樹脂組成物 |
JP2001049064A (ja) | 1999-05-28 | 2001-02-20 | Toray Ind Inc | 難燃性樹脂組成物およびそれからなる成形品 |
JP2007270156A (ja) * | 2007-06-13 | 2007-10-18 | Ge Plastics Japan Ltd | ポリカーボネート系樹脂組成物成形体 |
JP2008501849A (ja) * | 2004-10-07 | 2008-01-24 | エルジー・ケム・リミテッド | 高い耐衝撃性を有する難燃性スチレン系樹脂組成物 |
JP2008143997A (ja) | 2006-12-08 | 2008-06-26 | Mitsubishi Engineering Plastics Corp | ポリカーボネート樹脂組成物 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5864004A (en) * | 1997-03-27 | 1999-01-26 | Samyang Corporation | Flame retardant polymer resin composition having improved heat distortion temperature and mechanical properties |
JP4056138B2 (ja) * | 1998-07-31 | 2008-03-05 | 電気化学工業株式会社 | 難燃性樹脂組成物 |
TW523533B (en) * | 1999-05-28 | 2003-03-11 | Toray Industries | Flame-retardant resin composition and molding product formed of the same |
TW200302894A (en) * | 2002-02-05 | 2003-08-16 | Y K K Corp | Flame-resistance molded article and fabric product |
JP2004043562A (ja) * | 2002-07-09 | 2004-02-12 | Techno Polymer Co Ltd | 難燃性樹脂組成物及び成形品 |
US20090118412A1 (en) * | 2007-11-01 | 2009-05-07 | Veerag Yagnik Mehta | New and novel engineering resin thermoplastic silicone vulcanizates |
JP5564772B2 (ja) * | 2008-09-12 | 2014-08-06 | 東レ株式会社 | 制電性熱可塑性樹脂組成物および成形品 |
-
2011
- 2011-09-21 MY MYPI2013000979A patent/MY161153A/en unknown
- 2011-09-21 TW TW100133902A patent/TWI507468B/zh active
- 2011-09-21 US US13/821,780 patent/US9321963B2/en not_active Expired - Fee Related
- 2011-09-21 JP JP2011545564A patent/JP5783047B2/ja active Active
- 2011-09-21 WO PCT/JP2011/071427 patent/WO2012039410A1/ja active Application Filing
- 2011-09-21 CN CN201180046024.5A patent/CN103119096B/zh active Active
- 2011-09-21 EP EP11826855.6A patent/EP2620473B1/en not_active Not-in-force
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4524151Y1 (ja) | 1968-07-09 | 1970-09-22 | ||
JPS5924736A (ja) | 1982-08-02 | 1984-02-08 | Adeka Argus Chem Co Ltd | 難燃性ポリスチレン系樹脂組成物 |
JPS604550A (ja) | 1983-06-21 | 1985-01-11 | Mitsubishi Gas Chem Co Inc | 成形用ポリカ−ボネ−ト樹脂組成物 |
JPH05247315A (ja) | 1992-03-05 | 1993-09-24 | Asahi Chem Ind Co Ltd | 良流動耐熱耐衝撃性スチレン系樹脂組成物 |
JPH06157866A (ja) | 1992-11-20 | 1994-06-07 | Asahi Chem Ind Co Ltd | 難燃性樹脂組成物 |
JPH0733971A (ja) * | 1993-07-16 | 1995-02-03 | Nippon Steel Chem Co Ltd | 難燃非滴下性樹脂組成物 |
JPH0770448A (ja) | 1993-09-07 | 1995-03-14 | Asahi Chem Ind Co Ltd | 耐ドリップ性と流動性の優れた難燃耐熱性樹脂組成物 |
JPH115869A (ja) | 1997-06-17 | 1999-01-12 | Asahi Chem Ind Co Ltd | 液状リン系難燃剤 |
JPH11140270A (ja) | 1997-11-11 | 1999-05-25 | Sumika Abs Latex Kk | 難燃性熱可塑性樹脂組成物 |
JP2001049064A (ja) | 1999-05-28 | 2001-02-20 | Toray Ind Inc | 難燃性樹脂組成物およびそれからなる成形品 |
JP2008501849A (ja) * | 2004-10-07 | 2008-01-24 | エルジー・ケム・リミテッド | 高い耐衝撃性を有する難燃性スチレン系樹脂組成物 |
JP2008143997A (ja) | 2006-12-08 | 2008-06-26 | Mitsubishi Engineering Plastics Corp | ポリカーボネート樹脂組成物 |
JP2007270156A (ja) * | 2007-06-13 | 2007-10-18 | Ge Plastics Japan Ltd | ポリカーボネート系樹脂組成物成形体 |
Non-Patent Citations (2)
Title |
---|
E. SCHMIDT; P. H. BIDDISON, RUBBER AGE, vol. 88, 1960, pages 484 - 490 |
See also references of EP2620473A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012072202A (ja) * | 2010-09-27 | 2012-04-12 | Nippon A&L Inc | 熱可塑性樹脂組成物及び成形体 |
CN112358702A (zh) * | 2018-04-29 | 2021-02-12 | 徐菡 | 一种抗菌阻燃hips复合材料 |
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US9321963B2 (en) | 2016-04-26 |
CN103119096B (zh) | 2016-01-20 |
EP2620473A1 (en) | 2013-07-31 |
MY161153A (en) | 2017-04-14 |
EP2620473A4 (en) | 2014-03-19 |
JP5783047B2 (ja) | 2015-09-24 |
TW201224038A (en) | 2012-06-16 |
US20130221293A1 (en) | 2013-08-29 |
TWI507468B (zh) | 2015-11-11 |
CN103119096A (zh) | 2013-05-22 |
JPWO2012039410A1 (ja) | 2014-02-03 |
EP2620473B1 (en) | 2016-05-18 |
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