JPH03200866A - Thermoplastic resin composition - Google Patents

Abstract

PURPOSE:To prepare the title compsn. exhibiting an increased expansion ratio and giving a molded foam with a fine cell structure by compounding a polyphenylene ether resin, a styrenic resin, a specific polymer component, and a rubberlike elastomer. CONSTITUTION:In the presence of a vinylic polymer having a glass transition point of 30 deg.C or higher, a (meth)acrylic ester other than the monomer constituting the vinylic polymer is polymerized to give a graft polymer. Separately, 50-95wt.% methyl methacrylate, 5-50wt.% alkyl acrylate, and 0-20wt.% other vinylic monomer copolymerizable with these two monomers are copolymerized to give a copolymer having a reduced viscosity (25 deg.C, in chloroform) of 2-14 and a glass transition point of 30 deg.C or higher. 100 pts.wt. the title compsn. is prepared by compounding 10-80 pts.wt. polyphenylene ether resin, 10-89.9 pts.wt. styrenic resin, 0.1-20 pts.wt. polymer component comprising the above prepd. graft polymer and/or copolymer; and 0-25 pts.wt. rubberlike elastomer.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention provides a thermoplastic resin composition that has excellent heat resistance and impact resistance and is suitable for molding methods such as injection molding, vacuum molding, and blow molding; The present invention relates to a thermoplastic resin composition particularly suitable for foam injection molding.

[Conventional technology]

Polyphenylene ether resin compositions made by mixing polyphenylene ether resins and styrene resins are well known as excellent resin compositions that have excellent heat resistance, impact resistance, electrical properties, and self-extinguishing properties. There is. Molding methods used include injection molding, blow molding, and vacuum forming into sheets.

[Problem to be solved by the invention]

However, since this resin has a high melting temperature and high melt viscosity, high molding temperature and pressure are required during molding. In addition, since it has relatively high adhesion to metals, there is a problem in replacing the resin in molding machines and extruders. For example, when switching between materials with different coloring formulations, a large amount of the previously used color remains, and switching requires a large amount of resin and time, which is inefficient. In addition, the resin tends to accumulate inside the molding machine, etc., and the degraded products of the accumulated resin sometimes cause poor surface appearance and deterioration of mechanical properties of the molded product.

This was also thought to be a problem that could be improved if the substitution properties of the resin were improved.

To solve these problems, for example, methods of adding a plasticizer as in Japanese Patent Publication No. 49-5220, and methods of adding plasticizers as in Japanese Patent Publication No. 59-1
A method of adding metal soap, as in Japanese Patent No. 2963, has been proposed. However, these methods are still insufficient, and in particular, hardly any effect of improving the substitution property of the resin is observed. In addition, the addition of these additives often results in a decrease in impact resistance, heat resistance, etc., and improvements in these properties have been expected.

Furthermore, one of the application examples of the injection molding method is the foam injection molding method. This molding method is a method in which molten plastic containing foaming gas is injected into a mold using an injection molding machine to obtain an injection molded product, which has characteristics such as being light, having high rigidity, having little "sink", and having a sound insulation effect. A foamed molded article having the following properties is obtained. Conventionally, polyethylene, polypropylene, ABS, polystyrene, etc. have been frequently used as resin materials used in foam injection molding, but recently polyphenylene ether resins have been increasingly used.

Methods for foaming resin include blowing high-pressure nitrogen gas directly into the molten resin, and impregnating a resin pellet as a raw material in advance with a highly volatile, low-boiling solvent before plasticizing it. There is a method in which a chemical foaming agent is mixed with a resin pellet and decomposed by the heat during plasticization, and the gas generated is utilized.

In order to increase the expansion ratio, molding conditions are adjusted, but there is a need for materials that can obtain a higher expansion ratio and provide molded products with dense cells.

[Means to solve the problem]

That is, the thermoplastic resin composition of the present invention contains (8) polyphenylene ether resin, 10 to 80 parts by weight, (B) styrene resin, 10 to 89.9 parts by weight, and (C) vinyl polymer having a glass transition temperature of 30°C or higher. A polymer (C-1) obtained by polymerizing one or more (meth)acrylic acid esters (II) different from the monomers constituting the vinyl polymer (I) in the presence of the polymer (I), and methyl methacrylate 50-95% by weight, alkyl acrylate 5-5
0% by weight and 0 to 20% by weight of other vinyl monomers copolymerizable with these, and has a reduced viscosity of 2 to 14 at 25°C and chloroform solvent F, and a glass transition temperature of Copolymer having a temperature of 30°C or higher ((nee 2) 0.1 to 20 parts by weight of at least one polymer and (D) 0 to 25 parts by weight of rubber-like elastic body)
The total amount of components (A) to (D) is 100 parts by weight) as the main component.

[Effect]

The polyphenylene ether resin (A) used in the present invention has the following formula (wherein 01 to Q4 are each independently selected from the group consisting of hydrogen and hydrocarbon groups, and m represents a number of 30 or more.

) It is a homopolymer or copolymer having a unit represented by:

Specific examples of such polyphenylene ether resins include:
Poly(2,6-dimethyl-1,4-phenylene) ether, poly(2,6-diethyl-1,4-phenylene) ether, poly(2,6-diprobyl-1,4-phenylene) ether, poly(2- Methyl-6-ethyl-1,4
-phenylene) ether, poly(2-methyl 6-broby-1,4-phenylene) ether, poly(2-ethyl-6-broby-1,4-phenylene) ether, (2
,6-dimethyl-1,4-phenylene)ether and (2
, 3,6-dimethyl-1,4-phenylene) ether, (2,6-diethyl-1,4-phenylene) ether and (2,3,6-)limethyl-1,4-phenylene) Examples include copolymers with ether, copolymers with (2,6-dimethyl-1,4-phenylene) ether and (2,6-triethyl 1,4-phenylene) ether, etc. In particular, poly(2,6 -Simethyl-1,4-phenylene)ether, and (2,6-cymethyl-1,4-
(phenylene) ether and (2,3,6-drimethyl-1
．． A copolymer with 4-phenylene) ether is preferred,
More preferred is poly(2,6-dimethyl-1,4-phenylene)ether. These polyphenylene ether resins are compatible with polystyrene resins at all blending ratios.

The degree of polymerization of the polyphenylene ether resin used in the present invention is not particularly limited, but the reduced viscosity at 25°C in chloroform solvent is 0.3 to 0.7 dll/
It is preferable to use one of g. 0.3dII.

Those with a reduced viscosity of less than 78 g tend to have poor thermal stability, while those with a reduced viscosity of more than 0.717 g tend to impair moldability. These polyphenylene ether resins may be used alone or in combination of two or more.

The styrenic resin (B) used in the present invention is a polymer containing at least 50% by weight of styrene or a derivative thereof. Specific examples include homopolymers such as polystyrene, poly-α-methylstyrene, and polychlorostyrene; styrene-acrylonitrile copolymers, styrene-methyl methacrylate copolymers, styrene-acrylonitrile-methyl methacrylate copolymers, and styrene and other vinyl monomers; and polymers modified with rubber such as high-impact polystyrene. These may be used alone or in combination of two or more. Particularly useful styrenic resins (B) are polystyrene and high-impact polystyrene. As a method for producing these styrenic resins, known polymerization methods such as bulk polymerization, suspension polymerization, emulsion polymerization, solution polymerization, and bulk suspension polymerization are employed.

In the present invention, at least one kind of polymer (C-1) and copolymer (G-2) described below is used as the polymer (C).

In the presence of the vinyl polymer (I) having a glass transition point of 30°C or higher used in the present invention, one or more (meth)acrylic esters (II) different from the monomers constituting the vinyl polymer (I) are added. The polymer (C-1) obtained by polymerizing is as follows.

The vinyl polymer (I) is a (co)polymer of one or more vinyl monomers, and may be polymerized not only in one stage but also in multiple stages. The vinyl monomer (I) used here includes aromatic alkenyl monomers such as styrene, α-methylstyrene, and vinyltoluene; vinyl cyanide monomers such as acrylonitrile and methacrylate trile; methyl methacrylate; Typical examples include (meth)acrylic acid ester monomers such as butyl methacrylate, ethyl acrylate, and butyl acrylate. Particularly preferred among these are styrene, methyl methacrylate, butyl methacrylate, and butyl acrylate. The glass transition temperature of the vinyl polymer (I) needs to be 30°C or higher. Furthermore, materials having a crosslinked structure such as what is generally called a rubber-like elastic material cannot be used. The glass transition temperature is usually determined by dynamic viscoelasticity measurement or differential scanning calorimetry (
OSC), etc.

Examples of the (meth)acrylic acid ester monomer (II) include methyl methacrylate, butyl methacrylate,
There are methyl acrylate, ethyl acrylate, butyl acrylate, etc., but it is necessary to select and use a monomer different from the monomer constituting the vinyl polymer (I). (
As the meth)acrylic acid ester monomer (If),
It is preferable to use a composition in which the amount of methyl methacrylate is 70 to 100% by weight and the amount of other (meth)acrylic acid ester monomers is 30 to 0% by weight, giving a total of 100% by weight.

Further, the amount of the (meth)acrylic acid ester monomer (II) used is preferably within the range of 5 to 60% by weight based on the entire polymer ((nee 1)).

The polymerization of the polymer (ni-1), that is, the initial polymerization of the vinyl monomer (I) and the subsequent polymerization of the (meth)acrylic acid ester monomer (II), are usually carried out by emulsion polymerization. . A conventional emulsifier can be used, and any of water-soluble, oil-soluble, and redox polymerization initiators can be used as the polymerization initiator.

On the other hand, the copolymer ((nee 2)) used in the present invention is as follows. That is, the reduced viscosity (ηsp/e
) is a methyl methacrylate copolymer with an extremely high molecular weight in the range of 2 to 14 (c = 0.1 g/1oOcc, measured value at 25°C in chloroform solvent). The value of 0 m p/c is extremely important, and if it is less than 2, no improvement in the replaceability or processability of the resin composition will be observed. Also,
Even if it exceeds 14, the effect of addition is no longer seen.

The content of methyl methacrylate in the copolymer (C-2) is 50 to 95% by weight. If it is less than 50% by weight, the processability improvement effect of methyl methacrylate will not be observed, and if it exceeds 95% by weight, dispersibility in other resins will be poor. Further, copolymerization with 5 to 50% by weight of alkyl acrylate is necessary to improve dispersibility in other resins. If it is less than 5% by weight, dispersion will be poor and the effect cannot be expected. As the alkyl acrylate, methyl acrylate, ethyl acrylate, n-butyl acrylate, isobutyl acrylate, 2-ethylhexyl acrylate, chloroethyl acrylate, etc. are used alone or as a mixture of two or more.

Particularly preferred are ethyl acrylate and n-butyl acrylate.

Further, as a third component, another vinyl monomer copolymerizable with the above two components is used as necessary.

The upper limit of the amount of other vinyl monomers used is up to 20% by weight,
If the amount exceeds this range, excellent substitution properties and processability will not be exhibited. Other such vinyl monomers include styrene,
Examples include aromatic alkenyl monomers such as α-methylstyrene and vinyltoluene; vinyl cyanide monomers such as acrylonitrile and methacrylonitrile; and methacrylic acid esters other than methyl methacrylate such as n-butyl methacrylate.

Further, the glass transition temperature of the copolymer (C-2) also needs to be 30°C or higher. That is, materials having a crosslinked structure such as what is generally called a rubber-like elastic material cannot be used.

The polymerization of the methyl methacrylate copolymer ((nee 2) is usually carried out by emulsion polymerization. As the emulsifier, ordinary emulsifiers can be used, and as the polymerization initiator, water-soluble, oil-soluble, and redox-based ones can be used. A polymerization initiator is used.Moreover, the molecular weight is adjusted by adjusting the amount of a chain transfer agent such as a mercaptan or the amount of the polymerization initiator used.

Particularly important points in the thermoplastic resin composition of the present invention are:
The above polymer (I1 knee 1) and copolymer ([nee 2)
The method is to add at least one kind of polymer. The problems to be solved by the present invention are (I) improvement of the substitution property of the resin and (2) improvement of the foamability in foam injection molding. Among these, the polymer (C-t) is particularly (+)
It is effective regarding. On the other hand, the copolymer ((nee 2) is
It exhibits both effects (I) and (2).

The rubber-like elastic body (D) used in the present invention is a polymer that exhibits a rubber state at room temperature. Specific examples thereof include butadiene polymer, butadiene-styrene copolymer, butadiene-acrylonitrile copolymer, styrene-butadiene-styrene block copolymer (SO5), isoprene polymer, isoprene-styrene copolymer, and chlorobutadiene polymer. Diene-based rubbers such as gen polymers: Isobutylene-based rubbers: (meth)acrylic acid ester-based rubbers such as butyl acrylate crosslinked polymers; Olefin-based rubbers such as ethylene and -propylene copolymers; Urethane-based rubbers; Polypropylene oxide rubbers, etc. Examples include polyether rubber, silicone rubber, and epichlorohydrin rubber.

Furthermore, rubber-like elastic bodies graft-modified with various (co)polymers may also be used. Components constituting this graft chain include aromatic alkenyl monomers such as styrene, α-methylstyrene, and vinyltoluene; acrylonitrile;
Vinyl cyanide monomers such as methacrylonitrile; vinyl monomers represented by (meth)acrylate monomers such as methyl methacrylate, ethyl acrylate, and butyl acrylate; Alternatively, two or more types may be used in combination. These rubber-like elastic bodies or graft-modified rubber-like elastic bodies are
Dispersed in a spherical shape in the resin composition, with an average particle size of 1 μm
The following is desirable.

The weight composition ratio of components (A) to (D) used in the present invention needs to be within the following range. That is, component (A)
lo~80 Part by weight component (B) 10~8
9.9 parts by weight Component (G) 0.1 to 20 parts by weight Component (D) 0 to 25 parts by weight, within a range where the total of components (A) to (D) is 100 parts by weight. Note that component (C) is preferably added in an amount of 0.5 to 10 parts by weight.

When component (A) is less than 10 parts by weight, heat resistance is low and is not practical, and when it exceeds 80 parts by weight, fluidity becomes extremely poor.

If component (B) is less than 10 parts by weight, the fluidity is poor, and 89.
If it exceeds 9 parts by weight, heat resistance will decrease. Component (C) is 0
．． If the amount is less than 1 part by weight, no effects regarding substitution properties and foaming properties will be exhibited. Is it resistant to more than 20 parts by weight? # If it is aggressive, it will adversely affect the properties specific to polyphenylene ether resin. Component (D) is not an essential component, but when added in an appropriate amount if necessary, it brings about the effect of improving impact resistance. However, if it is used in an amount exceeding 25 parts by weight, fluidity and hardness decrease, resulting in a loss of practical performance.

Furthermore, foaming agents, stabilizers, plasticizers, lubricants, flame retardants, pigments, fillers, etc. can be added to the resin composition of the present invention, if necessary. Stabilizers include triphenyl phosphite, lubricants include polyethylene wax and polypropylene wax, flame retardants include triphenyl sulfate, tricresyl phosphate, decabromo biphenyl, decabromo biphenyl ether, antimony trioxide, and pigments. Examples of the filler include titanium oxide, zinc sulfide, and zinc oxide, and examples of the filler include glass fiber, wollastonite, mica, and talc.

(Example) Hereinafter, the present invention will be specifically explained with reference to Examples and Comparative Examples. Note that parts and % below indicate parts by weight and % by weight, respectively.

In these Examples and Comparative Examples, as a method for evaluating the replaceability of the resin, injection molding of the pelletized resin was performed, and the number of times of molding until the color was replaced was counted. Injection molding was carried out using a Promat 165775 injection molding machine manufactured by Sumitomo Heavy Industries, Ltd. 100 mm x 100 mm x 311111
A flat plate was molded at a cylinder temperature of 280°C. First, 20 shots were molded using a black colored pellet, followed by molding a white colored pellet, and the number of molded shots until no black streaks appeared on the molded plate was determined.

Mixing of each resin composition was carried out using a ZSK-30 type vented twin-screw kneading extruder (manufactured by West German Unioner & Freipler ■).
Cylinder temperature 270 using screw diameter 30mm)
It was carried out at ℃ and shaped into a pellet. Each polymer component is
The mixture was thoroughly mixed in a Henschel mixer before being charged into the extruder. For each of the compositions of Examples and Comparative Examples, 214 type pellets of black colored products and white colored products were prepared and used for the substitution test in injection molding. For 100 parts of the resin composition, 1 part of carbon black is used for the black colored product.
1 part, and 2 parts of titanium oxide was added to the white colored product.

Furthermore, as an evaluation method for foam injection molding, the foaming ratio of the molded product was evaluated. For 100 parts of resin pellet, foaming agent (ES-106, trade name, manufactured by Eiwa Kasei Kogyo@)
The foaming ratio was defined as the ratio of the specific gravity of a molded product obtained by injection molding with 5 parts added and molded without adding a foaming agent. Promat+65775 manufactured by Sumitomo Heavy Industries ■ is used for injection molding.
Using a mold injection molding machine, 125mo+x 12.7mmx
A square bar of 6.3n+m was molded at a cylinder temperature of 260°C. A shutoff valve was attached to the injection nozzle of the injection molding machine to prevent resin and gas from leaking during measurement.

In addition, methacrylic acid ester polymers (C-1-a) to (C-1-e) methyl methacrylate copolymers (C-2-a) to (C-1-e) used in the following Examples and Comparative Examples
-2-d) and the styrene copolymer (C-3) were manufactured as follows.

Reference Example 1 Production of copolymer (C-1-a) In a reaction vessel equipped with a stirrer and a reflux condenser, 280 parts of ion-exchanged water, 1.5 parts of sodium dioctyl sulfosuccinate, 0.2 parts of ammonium persulfate, and n-octyl were added. Mercaptan 0.0
After charging 50 parts of 0.05 parts and 50 parts of styrene and purging the inside of the container with nitrogen, the temperature of the reaction container was raised to 65°C with stirring.
The mixture was heated and stirred for hours. Next, n-butyl acrylate 30
A mixture of 1 part and 0.5 parts of n-octyl mercaptan was added dropwise over 1 hour, and after the addition was complete, the mixture was further stirred for 2 hours. Thereafter, a mixture of 20 parts of methyl methacrylate and 0.002 parts of n-octyl mercaptan was added over 30 minutes, and the mixture was further stirred for 2 hours to complete the polymerization. After cooling the obtained latex, it was salted out using aluminum chloride, filtered, washed, and dried to produce a copolymer.

Reference Examples 2 to 5 Copolymer (c-1-b) to (C-1-
Production of e) Copolymer (C-1-a) produced in Reference Example 1
In the production method, each copolymer was produced by carrying out the polymerization in the same manner as in Reference Example 1, except that the monomers added at each polymerization step were changed as shown in Table 1.

Reference Examples 6 to 10 Methyl methacrylate copolymer (
Production of I1 knee 2-a) to (C-2-d) and styrenic copolymer (G-3) 25 mL of ion-exchanged water was placed in a reaction vessel equipped with a stirrer and a reflux condenser.
0 parts, 1.5 parts of sodium dioctyl sulfosuccinate,
Ammonium persulfate 0.2 parts, methyl methacrylate 9
After charging 2 parts of n-butyl acrylate, 8 parts of n-butyl acrylate, and 0.05 part of n-octyl mercaptan, and purging the inside of the container with nitrogen, the temperature of the reaction container was raised to 65° C. while stirring, and the mixture was heated and stirred for 4 hours. After cooling, the copolymer (C
-2-a) was obtained.

In the same way, by changing the amounts of each monomer and n-octyl mercaptan, copolymers (Ni-2-b) to (C-2
-d) and (C-3) were obtained. Polymerization recipe and η*p/
c is shown in Table 2.

Further, the composite rubber-based graft co-electrolyte (Tl) used in the present examples and comparative examples was manufactured in the following manner.

Reference Example II Composite rubber-based graft copolymer (D-1)
Preparation of 2 parts of tetraethoxysilane, 0.5 part of γ-methacryloyloxypropyldimethoxymethylsilane, and 97.5 parts of octamethylcyclotetrasiloxane were mixed to obtain 100 parts of a siloxane mixture. 100 parts of the above siloxane mixture was added to 200 parts of distilled water in which 1 part of each dodecylbenzenesulfonic acid was dissolved, and after preliminary stirring at 10,000 rpm with a homomixer,
The mixture was emulsified and dispersed using a homogenizer at a pressure of 300 kg/cm2 to obtain an organosiloxane latex.

This latex was transferred to a separable flask equipped with a condenser and a stirrer, heated at 80°C for 5 hours while stirring and mixing, and then left at zO°C. After 48 hours, the pH of this latex was adjusted to 6.9 with an aqueous sodium hydroxide solution. By neutralizing the mixture, polymerization was completed and a polyorganosiloxane rubber latex (D-a) was obtained. The polymerization rate of the obtained polyorganosiloxane rubber was 89.7%, and the average particle diameter of the polyorganosiloxane rubber was 0.16.
It was μm.

Collect 25 parts of polyorganosiloxane latex (D-a), put it in a glass flask equipped with a stirrer, and add 53 parts of distilled water.
After purging the system with nitrogen, the internal temperature was raised to 60°C, and 7.35 parts of n-butyl acrylate, 0.15 parts of allyl methacrylate, and 0.038 parts of tert-butyl hydroperoxide were added. The mixed solution was allowed to penetrate into the polyorganosiloxane rubber particles. Then ferrous sulfate 0.0
0025 parts, ethylenediaminetetraacetic acid disodium salt 0
．． A mixed solution of 00075 parts, 0749910.06 parts, and 4.2 parts of distilled water was charged and radically polymerized, and then kept at an internal temperature of 70°C for 2 hours to complete the polymerization and obtain a composite rubber latex. A portion of this latex was sampled and the average particle size of the composite rubber was measured and found to be 0.20 μm.

In addition, this latex was dried to obtain a solid product, extracted with toluene at 90°C for 12 hours, and the gel content was measured.
It was 8.0%.

To this composite rubber latex was added 70 parts of a mixed solution of 0.048 parts of tart-butyl hydroperoxide and 10 parts of Stereph.
The mixture was added dropwise at 70°C for 60 minutes, and then maintained at 70°C for 4 hours to complete graft polymerization to the composite rubber. The polymerization conversion rate of styrene was 98.5%.

The obtained graft copolymer latex was coagulated by dropping it into 200 parts of hot water containing 1.5% calcium chloride, separated, dehydrated, washed, and then dried to obtain a composite rubber-based graft copolymer (D-0). I got it.

Examples 1 to 12, Comparative Examples 1 to 6 Commercially available polyphenylene ether (poly(2,6-dimethyl-1,4-phenylene ether), polystyrene, impact-resistant polystyrene, and (meth)acrylic acid ester synthesized in Reference Example system copolymer (C-1-a) ~(I1
Ni 1-e), methacrylate copolymer (C-2
-a) ~ (C-2-d), styrenic copolymer (C
-3) and the composite rubber graft copolymer (D-1) were blended in the proportions shown in Table 3 to obtain pellets of various resin compositions. The ability to change the color from black to white during molding of each of these pellets was evaluated using the method described above. Further, foam injection molding was carried out by the method described above, and the foaming ratio was measured. Samples for measuring the Izot impact strength and heat distortion temperature of each resin composition were obtained by injection molding and measured according to the following method.

Izot impact strength: 6.45 mm thick molded notched specimen according to ASTM D-256 method, (kg -
cm/cm) Heat distortion temperature: 18.6 kg 7 cm'' load according to the method of ASTM D-648 (Effects of the invention) The resin composition of the present invention has the excellent impact resistance and heat resistance of the polyphenylene ether resin composition. It exhibits good resin replacement properties in molding machines, etc. while maintaining its properties. It also exhibits excellent foaming properties in foam injection molding. Therefore, it is possible to change materials with different coloring formulations in a short time, and the inside of the molding machine Since there is little resin retention in the molded product, there is almost no occurrence of poor surface appearance or deterioration of mechanical properties of the molded product.In addition, during foam injection molding, it is lightweight, has high rigidity, has almost no sink marks, and has excellent sound insulation properties. It is possible to obtain molded products with excellent properties such as:

Claims (1)

[Claims] 1) (A) 10 to 80 parts by weight of polyphenylene ether resin (B) 10 to 89.9 parts by weight of styrene resin (C) Vinyl polymer (I) having a glass transition temperature of 30°C or higher
in the presence of one or more (meth)acrylic esters (I) different from the monomers constituting the vinyl polymer (I).
I), and 50 to 95% by weight of methyl methacrylate, 5 to 50% by weight of alkyl acrylate, and 0 to 20% by weight of other vinyl monomers copolymerizable with these. obtained by copolymerization, and 25
0.1 to 20 parts by weight of at least one copolymer (C-2) having a reduced viscosity of 2 to 14 °C and a glass transition temperature of 30 °C or higher in chloroform solvent and (D) Rubber-like elastic body 0 to 25 parts by weight (total amount of components (A) to (D) is 100 parts by weight)
A thermoplastic resin composition containing as a main component.