KR20090030511A - Flame retardant alloy composition of polyester with enhanced electrical properties - Google Patents

Abstract

A flame retardant polyester alloy resin composition is provided to improve flame retardancy, electrical properties, surface smoothness, and heat resistance by comprising a composite flame retardant, a reactive surfactant and layered silicate. A flame retardant polyester alloy resin composition comprises thermoplastic polyester 5-60 weight%; amorphous resin 10-60 weight% having the glass transition temperature of 130 °C or greater; a composite flame retardant 3-20 weight% consisting of one or more flame-retardants selected from halogen-based flame retardants and one or more flame-retardant aids selected from an antimony flame-retardant aid and phosphate flame retardants; reactive surfactant 0.3-6 weight% improving surface smoothness; and layered silicate 0.5-6 weight% for improving heat resistance.

Description

Flame Retardant Alloy Composition of Polyester with Enhanced Electrical Properties

The present invention relates to a flame-retardant polyester alloy resin composition with improved electrical properties. More specifically, in a polyester alloy resin composition based on a thermoplastic polyester resin and an amorphous resin having a glass transition temperature of 130 ° C. or higher, a flame retardant and a flame retardant aid are combined to improve flame retardancy and electrical properties. The present invention relates to a resin composition having excellent flame retardancy, heat resistance and electrical properties by containing a composite flame retardant, a reactive surfactant for improving surface smoothness, and a layered silicate for improving heat resistance.

Polyester has excellent mechanical and electrical properties and physical and chemical properties, and has been applied to a wide range of fields such as automobiles, electrical and electronic devices, office frames, housings, sockets and connectors. However, polyester has a disadvantage in that the impact, flame retardancy and heat resistance properties required for electric and electronic parts and the like are insufficient.

In order to solve this problem, polyester alloy products have been developed, and attempts to improve impact resistance, heat resistance, and workability by alloying polyester resins and polycarbonate resins have been made in U.S. Patent No. 4906202, U.S. Pat. 4393153 et al. In addition, U.S. Patent No. 5,114,998 introduces a resin composition containing talc, butadiene-based impact modifiers and stabilizers to prevent resin degradation in thermoplastic polyester blends. A resin composition containing a core-shell polymer was introduced. In addition, U.S. Patent No. 4,460,731 introduces a resin composition that reinforces glass fibers in a blend of PBT and PET to suppress warpage of the molded article.

However, these polyester alloys have a characteristic of burning well with a limited oxygen index (Limited Oxygen Index) of 25 or less, and are limited in flame retardancy, heat resistance, and deterioration in electrical characteristics required for various electrical and electronic components. There is this. As a conventional technique for adding flame retardant, U.S. Patent No. 4,370,438 describes the composition of No. 4,460,731 in the blend of PBT and PET in strength, hardness, impact modifier (glass fiber, etc.), flame retardant (halogen-based compound, antimony trioxide, etc.). The resin composition which suppresses the transesterification reaction which added) is introduced.

However, such a conventional technique has a disadvantage of causing a decrease in tracking electrical properties, heat resistance and surface properties due to flame retardation.

Accordingly, the present inventors have continued to solve the above problems, and as a result, have completed the present invention.

Accordingly, an object of the present invention is to provide a flame retardant polyester heat resin composition comprising a composite flame retardant for improving flame retardancy and electrical properties, a reactive surfactant for improving surface smoothness and a layered silicate for improving heat resistance. It is to provide a flame-retardant polyester alloy resin composition excellent in properties.

The above and other objects of the present invention can be achieved by the present invention described below.

Flame retardant polyester alloy resin composition according to the present invention is a thermoplastic polyester 5 to 60% by weight, 10 to 60% by weight of an amorphous resin having a glass transition temperature of 130 ℃ or more, at least one flame retardant selected from halogen-based flame retardants and antimony flame retardant aids, And 3 to 20% by weight of a composite flame retardant composed of one or more flame retardant aids selected from phosphorus flame retardants, 0.3 to 6% by weight of reactive surfactants for improving surface smoothness, and 0.5 to 6% by weight of layered silicates for improving heat resistance.

In the above, the amorphous resin having a glass transition temperature of 130 ° C. or higher is preferably an aromatic polycarbonate resin, more preferably, a polycarbonate formed by the reaction of bisphenol A with phosgene or diphenyl carbonate.

The halogen-based flame retardant included in the composite flame retardant is tetra bromo bisphenol A, deca bromo diphenyl ethane, brominated polycarbonate oligomer, tetra bromo bisphenol A dibromo propyl ether, brominated polystyrene, and bromine It is preferable to be selected from bromine flame retardants made of mined epoxy resin, the antimony flame retardant aid is preferably antimony trioxide or antimony pentoxide, the phosphorus flame retardant is a liquid or powdered phosphate ester, phosphate, pyrophosphate, phosph Preferred is a compound selected from the group consisting of fonates, metal-substituted phosphinates and phosphonates.

The reactive surfactant is preferably an oligomer or a polymer having a functional group selected from the group consisting of maleic anhydride, oxazoline, glycidyl methacrylate, and an epoxy group in the terminal group or the side chain, and in particular, the main chain of the oligomer or polymer It is preferable that it is a polyester type.

The layered silicate is preferably selected from the group consisting of smectite-based materials, vermiculite-based materials, illite-based materials and derivatives thereof.

The present invention also provides a molded article prepared from a material comprising the flame retardant polyester alloy resin composition described above.

The flame-retardant polyester alloy resin composition according to the present invention improves flame retardance without deteriorating other physical properties such as electrical properties, and is particularly a resin composition excellent in flame retardancy, heat resistance and electrical properties. Therefore, the resin composition according to the present invention can be used as a material of various electrical appliances.

Hereinafter, the present invention will be described in detail.

In the thermoplastic polyester alloy resin composition, the present invention relates to a composite flame retardant comprising two or more flame retardants and flame retardant aids for improving flame retardancy and electrical properties, a reactive surfactant for improving surface smoothness, and for improving heat resistance. It is characterized by exhibiting excellent flame retardancy, heat resistance and electrical properties by containing layered silicates.

That is, the composition of the present invention is 5 to 60% by weight of thermoplastic polyester, 10 to 60% by weight of an amorphous resin having a glass transition temperature of 130 ° C. or more, a flame retardant selected from at least one halogen-based flame retardant and an antimony flame retardant adjuvant, and a phosphorus-based flame retardant 3 to 20 weight percent of a composite flame retardant composed of one or more selected flame retardant aids, 0.3 to 6 weight percent of reactive surfactants to improve surface smoothness, and 0.5 to 6 weight percent of layered silicates to improve heat resistance.

The thermoplastic polyester used in the present invention may be selected from the group consisting of polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate and the like, in particular, polyethylene terephthalate is preferred, more preferably, Polyester is a copolymer which consists of 60-100 weight% of ethylene terephthalate units, or a resin compound which contains 60 weight% or more of polyethylene terephthalate. The polyethylene terephthalate may be a polymer by esterification of mono ethylene glycol and terephthalic acid or transesterification of mono ethylene glycol and dimethyl terephthalate. In the above, the copolymer including the ethylene terephthalate repeat unit may be formed by transesterification of ethylene terephthalate and other comonomers, for example, propylene terephthalate or butylene terephthalate. The resin blend may also be a mixture of polyethylene terephthalate and other polyalkylene terephthalates such as polypropylene terephthalate or polybutylene terephthalate.

In addition, the thermoplastic polyester used in the present invention is polybutylene terephthalate, polyethylene terephthalate, modified polybutylene terephthalate, modified polyethylene terephthalate, poly hexamethylene terephthalate, polycyclohexane thymethylene terephthalate, polytrimethyl It may be at least one selected from terephthalate.

In addition, the present invention may use a modified polyethylene terephthalate in order to improve the impact strength, polytetramethylene glycol (PTMG), polypropylene glycol (Polypropylene glycol, PPG), polyethylene during polymerization by chemical modification Modified polyethylene terephthalate copolymerized with glycol (Polyethylene glycol, PEG), low molecular weight aliphatic polyester, low molecular weight aliphatic polyamide can be used, and modified polyethylene terephthalate blended with impact modifier by physical modification Can be used.

Examples of the impact modifier include m-acrylonitrile-butadiene-styrene (MBS) having a core of rubber and a shell of plastic, all acrylic rubber, and ethylene-propylene-diene. Ethylene-propylene-diene monomer copolymer (EPDM), styrene-butadien-styrene (SBS), styrene-isoprene-styrene SIS, styrene-butadiene -butadien, SB), styrene-isoprene rubber, ethylene-vinylacetate (EVA), ethylene-ethyl acrylate (Ethylene ethyl acrylate, EEA), ethylene-vinylalchol, EVOH) copolymer, polybutylene terephtalate (PBT) elastomer, polyethylene terephtalate PET elastomer and nylon (Nylon) elastomer selected from the group The. In addition to the above-mentioned resins, there is no particular limitation as long as the resin can improve the impact strength.

In addition, polyethylene terephthalate premodified for the purpose of toughening polyester, improving appearance, or improving fluidity may be used, or pure polyethylene terephthalate and other resins may be added together before melt kneading and then mixed.

The content of the thermoplastic polyester is preferably 5 to 60% by weight, more preferably 10 to 50% by weight based on the total composition. If the content is less than 5% by weight, there is a limit to the improvement of the electrical properties, at 60% by weight or more is limited to the improvement of heat resistance.

The amorphous resin of the present invention is not particularly limited as long as the resin does not contain crystallinity of 130 ° C. or higher. Representative amorphous resins include aromatic polycarbonates, and may be aromatic polycarbonates which are polycondensed from bisphenol-A and phosgene or produced by transesterification of bisphenol-A with diphenyl carbonate. In addition to the homopolymer, the aromatic polycarbonate may be a copolycarbonate and terpolycarbonate copolymer and mixtures thereof. As a molecular weight of the polycarbonate resin used, the number average molecular weight range of 5,000-200,000 is used normally. If the average molecular weight of such an aromatic polycarbonate is 5,000 or less, the impact characteristic is lowered. If it is 200,000 or more, the flowability is lowered, and product molding becomes difficult. The content of the amorphous resin having a glass transition temperature of 130 ° C. or more may be used in an amount of 10 to 60% by weight, more preferably 15 to 50% by weight of the total resin composition. If the content is less than 10% by weight can not be expected to improve the heat resistance of the composition, at 60% by weight or more, the flow characteristics are lowered, thereby limiting the molding processability.

In the present invention, a composite flame retardant is used to impart flame retardancy and electrical properties. The composite flame retardant referred to in the present invention is composed of a flame retardant selected from at least one halogen-based flame retardant and a flame retardant aid selected from at least one of antimony flame retardants, phosphorus-nitrogen flame retardants and phosphorus flame retardants. Here, the phosphorus-nitrogen-based flame retardant and the phosphorus-based flame retardant typically include phosphorus-based compounds such as phosphorus-nitrogen compounds and phosphate esters which can be independently used as flame retardants, and in the present invention, the flame retardant auxiliary agent is a main flame retardant. It is intended to indicate that it is an auxiliary agent used to improve the electrical properties while further enhancing the flame retardancy of the halogen-based flame retardant. Meanwhile, antimony flame retardant aids are generally used as flame retardant aids to assist the flame retardant rather than independently used as flame retardants.

It is preferable to use a bromine compound as the halogen-based flame retardant, and such a bromine-based flame retardant is tetra bromo bisphenol A, decabromo diphenyl ethane, brominated polycarbonate oligomer, tetra bromo bisphenol A dibromo Propyl ether, brominated polystyrene, brominated epoxy resins and the like can be used. The flame retardant mentioned above can be used individually or in mixture of 2 or more types. In addition, in the present invention, a flame retardant auxiliary agent having a synergistic effect with a bromine-based organic compound used as a flame retardant may be added. Examples of the flame retardant aid include antimony trioxide, antimony pentoxide, and the like.

The phosphorus flame retardant used as the non-halogen flame retardant may be at least one compound selected from the group consisting of liquid or powdered phosphate esters, phosphates, pyrophosphates, phosphonates and phosphonates chemically similar to the phosphate esters. . As the phosphate ester compound, triphenyl phosphate (TPP), trixylenyl phosphate (TXP), tricresyl phosphate (TCP), etc. may be mainly used as a monomer having an aromatic group, and resorcinyl is one having two or more aromatic groups. Diphenyl phosphate (RDP), phenyl diresorcinyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate, phenyl di (isopropylphenyl) phosphate and the like can be used. Oligomers or polyphosphates more than dimers can be used. In the present invention, phosphorus-based flame retardants other than those mentioned above may be used alone or in combination of one or more thereof. In addition to the above composite flame retardant compounds, phosphorus nitrogen composite flame retardants, silicone compounds and the like can also be used. The compounds may be in liquid or solid form.

The composite flame retardant content is preferably 3 to 20% by weight, more preferably 3 to 15% by weight based on the total composition. This is because the flame retardant activation effect is lowered at less than 3% by weight, and the decomposition of resins, deterioration of physical properties, and deterioration of electrical properties occur at an amount exceeding 20% by weight. In particular, halogen-based flame retardant is 10 to 19% by weight, it is preferable that the flame retardant auxiliary agent is 1 to 5% by weight.

Flame retardant polyester alloy resin composition containing a composite flame retardant as described above can be applied to electrical appliances because not only the flame retardancy but also the electrical properties are improved. However, the flame-retardant polyester alloy resin composition with improved electrical properties as described above is required to be flame-retardant, but can be used only limited to general electrical components that do not specifically require appearance surface properties and heat resistance. Therefore, a separate component is required to extend the application to parts requiring surface properties, electrical properties, and heat resistance as well as flame retardancy. For this purpose, in the present invention, reactive surfactants and layered silicates for improving surface gloss properties and heat resistance are required. It is to include more.

The reactive surfactants improve compatibility between amorphous polyester components such as thermoplastic polyesters and polycarbonates, and uniformly disperse layered silicates, which will be described below, thereby improving surface properties and electrical properties. Reactive surfactants that play such a role include oligomers having maleic anhydride, oxazoline, glycidyl methacrylate, epoxy groups, etc. in terminal groups or side chains, or polymerized reactive compatibilizers. The interaction of maleic acid, oxazoline, glycidyl methacrylate, epoxy groups and carboxyl groups present in the polyester structure in the reactive surfactant structure promotes compatibility between the mixed resin components and Promote a uniform distribution. At this time, the main chain of the oligomer or polymer may be any matter as long as the functional group occupies the oligomer or polymer such that the oligomer or polymer sufficiently interacts with the resin components of the polyester and polycarbonate. none.

The content of the reactive surfactant is preferably 0.3 to 6% by weight in the total composition. If the content of the reactive surfactant is less than 0.3% by weight, the dispersing effect is lowered. If the content of the reactive surfactant is more than 6% by weight, the physical properties are lowered and the workability is poor. More preferably, it is 0.5 to 5 weight%.

In the present invention, the layered silicate is adopted to give the flame-retardant polyester alloy resin properties improved electrical properties. Layered silicate is a compound commonly referred to as polysilicate, has a layered structure, and is a type of finely dispersible inorganic filler in which a fine nano-sized layered layer can be dispersed in a resin. It is possible to improve the problem that the glass fibers added to the layered silicate in the conventional polyester resin composition have greatly reduced the appearance surface properties due to the surface protruding. In addition, the layered silicate has a surface area of several tens to several hundred times more than the general inorganic filler including glass fiber, and thus, it acts as an effective additive to help the crystallization of the crystalline resin even with a small amount and to maintain impact strength and improve heat resistance.

The layered silicate may be a layered illite such as montmorillonite, nontronite, batellite, boneconscote, hectorite, saponite, or kniteite, smectite-based material, vermiculite-based material, or radicalite. System substances and derivatives thereof. The layered silicates may be used alone or in combination. More preferred are montmorillonite, nontronite, baydelite, vonconscote, hectorite, saponite and kenite.

The content of the layered silicate is preferably 0.5 to 6% by weight in the total composition. Said content of layered silicates is suitable for achieving the object of the present invention, more preferably 1 to 5% by weight. If the content is less than 0.5% by weight can not be expected to improve the heat resistance and electrical properties, above 6% by weight is limited to the low temperature impact resistance and surface properties.

The flame-retardant polyester resin alloy composition is a lubricant, lubricant, heat stabilizer, antioxidant, light stabilizer, hydrolysis stabilizer, release agent, pigment, antistatic agent, conductivity imparting agent, EMI shielding agent, magnetic imparting agent, crosslinking agent, antibacterial agent, processing aid It may further comprise one or more additives selected from the group consisting of a metal deactivator, a depressant, a fluorine-based anti-drip agent, a friction wear-resistant improving agent and a coupling agent.

The compositions of the present invention are first mixed with the above additives in a super mixer, and then a conventional twin-screw extruder, single-screw extruder, roll-mills, kneader After kneading by melt kneading using one of a variety of mixing processing equipment such as) or a banbury mixer, pellets were obtained by a pelletizer, and then sufficiently dried in a dehumidifying dryer or a hot air dryer, followed by injection molding to measure physical properties.

In addition, the present invention provides an electrical component, an electronic component, an automotive part, and an industrial molded article including the flame-retardant polyester alloy resin composition having improved electrical properties as described above.

Hereinafter, the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the examples.

[Examples 1 to 5 and Comparative Examples 1 to 3]

After mixing according to the ingredients and contents shown in Table 1, the mixture was mixed well by a super mixer, melt-kneaded in a twin-screw extruder, pelletized, dried, injection-molded, and sufficiently conditioned at room temperature. Physical properties of the specimens were measured in the following manners and the results are shown in Table 1.

  Tensile strength and elongation: measured by ASTM D638 method.

* Heat deflection temperature (HDT): measured by ASTM D648 method using a load of 18.6kgf / cm ² .

  * Izod Impact was measured by ASTM D256 method.

  * Flame retardant: Measured by UL 94 test, a method defined by Underwriter's Laboratory Inc. of the United States, which remains after 10 seconds of flame burner flames on a vertically sized specimen. It is a method of evaluating flame retardancy from time or drip. Afterflaming time is the length of time that the specimen continues flame-burning after the ignition source is far away, and the surface of the drip is dripping from the specimen about 300mm below the lower end of the specimen. Determined by complexing with water, the flame retardancy grade is divided according to the table below.

division V2 V1 V0 HB Residual flame time of each sample 30 seconds or less 30 seconds or less 10 seconds or less Flame retardant 5 Total residue time of the sample 250 seconds or less 250 seconds or less 50 seconds or less Ignition of cotton by drip has exist none none

  * Tracking Resistance: Insulator may cause current on the surface between two electrodes due to contamination or corrosion, and it is to measure the resistance of the insulator against such electric current and test the standard contaminant by ASTM D2863 method. The highest voltage (CTI) without tracking after dropping on was measured.

  * Glow Wire Ignition Temperature: Evaluate the smoke resistance and electrical characteristics by contacting the heated metal wire to the insulator. The corresponding temperature is assessed by IEC60335-1, within 30 seconds after contact of the heated metal wire with the specimen and within 2 seconds of 30 seconds after contact removal.

The polyester alloy compositions of Examples 1 to 5 comprising a composite flame retardant to improve flame retardancy and electrical properties, a reactive surfactant to improve surface properties, and a layered silicate to improve heat resistance, according to the present invention. It can be seen that the flame retardancy, the electrical properties, and the heat resistance are higher than those of the polyester composition of Comparative Example 1 not containing, Comparative Example 2 not containing only the reactive surfactant, and Comparative Example 3 not containing the reactive surfactant and the layered silicate.

Claims (20)

Composite flame retardant composed of 5 to 60% by weight of thermoplastic polyester, 10 to 60% by weight of amorphous resin having a glass transition temperature of 130 ° C or higher, one or more flame retardants selected from halogen-based flame retardants, and one or more flame retardant aids selected from antimony-based flame retardants and phosphorus-based flame retardants A flame retardant polyester alloy resin composition comprising 3 to 20% by weight, 0.3 to 6% by weight of reactive surfactant to improve surface smoothness, and 0.5 to 6% by weight of layered silicate to improve heat resistance. The method of claim 1, The thermoplastic polyester is at least one selected from polybutylene terephthalate, polyethylene terephthalate, modified polybutylene terephthalate, modified polyethylene terephthalate, poly hexamethylene terephthalate, polycyclohexane thymethylene terephthalate, and polytrimethyl terephthalate. Flame-retardant polyester alloy resin composition comprising a. The method of claim 1, The polyester is a flame-retardant polyester Earl, characterized in that the copolymer comprising 60 to 100% by weight of ethylene terephthalate repeating unit or a resin mixture consisting of 60 to 100% by weight of polyethylene terephthalate and the remaining polyalkylene terephthalate. Roy resin composition. The method of claim 3, In the copolymer including the ethylene terephthalate repeating unit, the remaining repeating units are propylene terephthalate repeating unit, butylene terephthalate repeating unit, and polytetramethylene glycol (PTMG), polypropylene glycol (Polypropylene glycol, PPG) , A repeating unit selected from the group consisting of polyethylene glycol (PEG), low molecular weight aliphatic polyester, and low molecular weight aliphatic polyamide and terephthalate, and the remaining poly in the resin mixture. The alkylene terephthalate is a polypropylene terephthalate or a polybutylene terephthalate, flame-retardant polyester alloy resin composition characterized in that. The method of claim 1, A flame-retardant polyester alloy resin composition characterized in that the amorphous resin having a glass transition temperature of 130 ° C. or more is an aromatic polycarbonate resin. The method of claim 5, The aromatic polycarbonate is a flame retardant polyester alloy resin composition, characterized in that the polycarbonate formed by the reaction of bisphenol A and phosgene or diphenyl carbonate. The method of claim 5, Flame-retardant polyester alloy resin composition characterized in that the number average molecular weight of the aromatic polycarbonate is 5000 to 200000. The method of claim 1, The halogen-based flame retardant included in the composite flame retardant is tetra bromo bisphenol A, deca bromo diphenyl ethane, brominated polycarbonate oligomer, tetra bromo bisphenol A dibromo propyl ether, brominated polystyrene, and bromine A flame-retardant polyester alloy resin composition, characterized in that it is selected from bromine-based flame retardant consisting of a minified epoxy resin. The method of claim 1, The antimony flame retardant auxiliary agent is a flame retardant polyester alloy resin composition, characterized in that antimony trioxide or antimony pentoxide. The method of claim 1 The flame retardant flame retardant polyester alloy resin composition, characterized in that the compound selected from the group consisting of liquid or powdered phosphate ester, phosphate, pyro phosphate, phosphonate, metal-substituted phosphinate and phosphonate. The method of claim 10, The phosphate ester is triphenyl phosphate (TPP), trixylenyl phosphate (TXP), tricresyl phosphate (TCP), resorcinyl diphenyl phosphate (RDP) , Phenyl diresorcinyl phosphate, Cresyl diphenyl phosphate, Xylenyl diphenyl phosphate, Phenyl di (isopropylphenyl) phosphate phosphate), and oligomers or polyphosphates of at least two dimers thereof. The method of claim 1, The flame-retardant polyester alloy resin composition, characterized in that the halogen-based flame retardant constituting the composite flame retardant is 10 to 19% by weight, the flame retardant auxiliary agent is 1 to 5% by weight. The method of claim 1, The reactive surfactant is a flame-retardant polyester alloy resin composition characterized in that the oligomer or polymer having a functional group selected from the group consisting of maleic anhydride, oxazoline, glycidyl methacrylate, and an epoxy group in the end group or side chain. The method of claim 13, The polyester alloy resin composition, wherein the main chain of the oligomer or polymer is a polyester type. The method of claim 1, The layered silicate is selected from the group consisting of smectite-based materials, vermiculite-based materials, illite-based materials and derivatives thereof. The method of claim 15, The smectite-based material is selected from the group consisting of montmorillonite, nontronite, batellite, vonconscote, hectorite, saponite and keniteite, and the layered illite-based material is redicite Flame-retardant polyester alloy resin composition. The method of claim 1, The flame retardant polyester alloy resin composition is a silicone flame retardant, lubricant, lubricant, thermal stabilizer, antioxidant, light stabilizer, hydrolysis stabilizer, mold release agent, pigment, antistatic agent, conductivity imparting agent, EMI shielding agent, magnetic imparting agent, crosslinking agent, antibacterial agent A flame retardant polyester alloy resin composition further comprising at least one additive selected from the group consisting of processing aids, metal deactivators, depressants, fluorine anti-dropping agents, anti-friction anti-wear agents, and coupling agents. The method of claim 1, The flame retardant polyester alloy resin composition further comprises an impact modifier (impact modifier). The method of claim 18, The impact modifiers are m-acrylonitrile-butadiene-styrene (MBS) having a core structure of rubber and a shell plastic, and all acrylic rubber and ethylene-propylene-diene monomers. Ethylene-propylene-diene monomer copolymer (EPDM), styrene-butadien-styrene (SBS), styrene-isoprene-styrene SIS, styrene-butadiene butadien, SB), styrene-isoprene rubber, ethylene-vinylacetate (EVA), ethylene-ethyl acrylate (Ethylene ethyl acrylate, EEA), ethylene-vinylalchol, EVOH ) At least one selected from the group consisting of copolymers, polybutylene terephtalate (PBT) elastomers, polyethylene terephtalate PET elastomers and nylon elastomers A flame-retardant polyester alloy resin composition according to claim. 20. A molded article made from a material comprising the flame retardant polyester alloy resin composition according to any one of claims 1 to 19.