JPH03190961A - Resin composition - Google Patents

Abstract

PURPOSE:To obtain the title composition excellent in mechanical strength, heat resistance, flame retardancy and molding processability, thus suitable for electrical and electronic equipment, etc., by incorporating a specific polyether copolymer with a heat-resistant thermoplastic resin and/or inorganic filler each at specified amount. CONSTITUTION:(A) 10-90wt.% of a polyether copolymer made up of A1: recurring unit of formula I and A2: another recurring unit of formula II with the molar ratio A1/A1+A2=0.1-0.8 and melt viscosity of >=1000 poise at 400 deg.C is incorporated with (B) a heat-resistant thermoplastic resin (e.g. polycarbonate); alternatively, 30-99wt.% of the component A is incorporated with (C) an inorganic filler (e.g. carbon fiber, glass fiber); as another alternative, the component A, B, and C are blended at such amounts as to be 10-90wt.%, based on the total of the components A and B, of the component A and 1-50wt.%, based on the total of the components A, B and C, of the component C; thus obtaining the objective composition.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a resin composition, and more specifically, the present invention relates to a resin composition that has high mechanical strength and heat resistance, excellent flammability, and good moldability. The present invention relates to a thermoplastic resin composition that has excellent properties such as, for example, that can be suitably used as a material for various polymer molded products such as electric/electronic equipment and mechanical parts.

C Conventional Techniques (Nete) Thermoplastic engineering resins have excellent mechanical strength, heat resistance, electrical properties, etc., and are therefore widely used as materials for electrical/electronic equipment, mechanical parts, etc.

However, depending on the application, even better properties are required, and flame retardancy is also strongly required to ensure safety during use.

Metal oxides and halogen compounds are generally used as flame retardants blended into such thermoplastic engineering resins.

[Problem to be solved by the invention]

However, in order to give thermoplastic resins such as conventional engineering resins sufficient flame retardancy, it is necessary to add large amounts of flame retardants such as metal oxides and halogen compounds. Resin compositions have problems such as a significant increase in weight and a decrease in mechanical strength and moldability.

The present invention has been made in view of the above circumstances.

The purpose of the present invention is to solve the above-mentioned problems and to provide a resin composition that has excellent moldability, maintains sufficiently high mechanical strength even at high temperatures, and has excellent flame retardancy, heat resistance, and mechanical properties. It is about providing.

[Means to solve the problem]

As a result of extensive research in order to achieve the above object, the present inventors have discovered that a specific polyether copolymer is blended with a heat-resistant thermoplastic resin and/or an inorganic filler in specific proportions. The present inventors have discovered that the following resin composition is an excellent resin composition that satisfies the above-mentioned objects of the present invention, and have completed the present invention based on these findings.

That is, the first invention of the present invention relates to a resin composition formed by blending a specific polyether copolymer and a heat-resistant thermoplastic resin in a specific ratio, and is represented by the following general formula [1 ] The formula (1) is composed of repeating units represented by N and is based on the sum of the content of the repeating units represented by the formula [I] and the content of the repeating units represented by the formula (II). The content ratio of repeating units expressed as molar ratio ((I)/
A polyether copolymer having ([I)+(II))l) of 0.1 to 0.8 and a melt viscosity of 1,000 poise or more at 400"C and a heat-resistant thermoplastic Provided is a resin composition comprising a resin, characterized in that the proportion of the polyether copolymer to the total amount of the polyether copolymer and the heat-resistant thermoplastic resin is 10 to 90% by weight. It is something to do.

A second invention of the present invention relates to a resin composition formed by blending the specific polyether copolymer and an inorganic filler in a specific ratio, A resin composition consisting of a copolymer and an inorganic filler, characterized in that the proportion of the polyether copolymer to the total amount of the polyether copolymer and the inorganic filler is 30 to 99% by weight. It is something that provides something.

Furthermore, a third invention of the present invention is comprised of the specific polyether copolymer, a heat-resistant thermoplastic resin, and an inorganic filler; The ratio of the polyether copolymer to the total amount is 10 to 90% by weight, and the proportion of the inorganic filler to the total amount of the polyether copolymer, the heat-resistant thermoplastic resin, and the inorganic filler is 10 to 90% by weight. The present invention provides a resin composition characterized in that the proportion thereof is 1 to 50% by weight.

The present invention will be explained in detail below.

Polyether Copolymer One of the important points in the polyether copolymer used as a compounding component of the resin composition of the present invention is that the repeating unit represented by the formula (I) and the formula [■ ], and the ratio of these repeating units is within a specific range as described above.

Here, if the proportion of repeating units represented by the above-mentioned form (Ill) [i.e., the molar ratio ((1)/(N)
)))) is less than 0.1, the melting point of the polymer will be too high and the melt viscosity will become high, making it difficult to melt mix with the additive components, making it difficult to produce a uniform resin composition. Otherwise, the primary molding processability during production and the secondary molding processability of the obtained resin composition deteriorate. In this case, depending on the type of repeating unit represented by formula CII), the glass transition temperature (Tg>
As a result, the resulting resin composition may not have sufficient properties such as heat resistance and mechanical strength at high temperatures. On the other hand, if this ratio (the molar ratio) exceeds 0.8,
The polymer becomes amorphous, and the heat resistance of the resulting resin composition decreases, as well as solvent resistance and chemical resistance.

Further, it is important that the polyether copolymer used in the present invention has a melt viscosity (zero shear viscosity) of 1,000 voids or more at a temperature of 400°C.

This is because a low molecular weight polyether copolymer having a melt viscosity of less than 1,000 voids cannot achieve sufficient heat resistance and mechanical strength.

On the other hand, the upper limit of the melt viscosity cannot be uniquely determined, but the moldability of the resin composition (flowability during molding, etc.)
From this point of view, it is usually desirable to set it to about 1.00,000 poise.

In addition, in the present invention, the various polyether copolymers described above may be used alone or in combination of two or more (
51 may be used.

In addition, the polyether copolymer contains other repeating units in a proportion that does not impede the object of the present invention.]
You may do so.

Method for producing polyether copolymer There is no particular restriction on the method for producing the polyether copolymer, and it can be produced according to various methods.

Examples of methods for producing polyether copolymers suitable for the present invention include the following methods.

That is, dihalogenobenzonitrile and 1.4bis(4
-Halobenzoyl)benzene in an amount corresponding to a molar ratio of 0.1 to 0.8 with respect to the total amount of dihalogenobenzonitrile and 4,4'-biphenol (i.e. , 4゜4'-dihyroxybiphenyl) in the presence of an alkali metal compound and a neutral polar solvent, and the molar ratio of the obtained reaction product to the above-mentioned total amount is 0.9. It is produced by carrying out a copolymerization reaction with 154-bis(4-halobenzoyl)benzene in an amount corresponding to ~0.2.

Examples of the dihalogenobenzonitrile that can be used include 2,3-dihalogenohensonitrile, 24-dihalogenobenzonitrile, 2,5-dihalogenobenzonitrile, 2,6-dihalogenobenzonitrile. , 3,4-dihalogenobenzonitrile, 35-dihalogenobenzonitrile, or a mixture of two or more thereof, but usually, for example, the following formula (wherein, X is a halogen atom) , the two x's in the formula may be the same or different.) 2,6-cyhalogenobenzonitrile represented by the following formula 2,4-dihalogenobenzonitrile and the like represented by the formula (having the same meaning as above) are preferably used.

Among these, preferred are 2,6-dichlorobenzonitrile, 2,6-difluorobenzonitrile, and 2.4-dichlorobenzonitrile.
-dichlorobenzonitrile, 2°4-difluorobenzonitrile, and particularly preferred is 2,6-dichlorobenzonitrile.

In addition, these may be used individually by 1 type, and may use 2 or more types together as needed.

The dihalogenobenzonitrile is represented by the following formula 4,
4'-biphenol is reacted in the presence of an alkali metal compound and a neutral polar solvent.

The alkali metal compound to be used is
Any substance that can convert '-biphenol into an alkali metal salt is acceptable, and there are no particular limitations, but alkali metal carbonates and alkali metal hydrogen carbonates are preferred.

Examples of the alkali metal carbonates include lithium carbonate, sodium carbonate, potassium carbonate, rubidium carbonate, and cesium carbonate.

Among these, preferred are sodium carbonate and potassium carbonate.

Examples of the alkali metal hydrogen carbonate include lithium hydrogen carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, rubidium hydrogen carbonate, and cesium hydrogen carbonate.

Among these, preferred are sodium hydrogen carbonate and potassium hydrogen carbonate.

Among the various alkali metal compounds mentioned above, sodium carbonate and potassium carbonate are particularly preferably used.

In addition, these may be used individually by 1 type, and may use 2 or more types together as needed.

Examples of the neutral polar solvent include N,N-di12methylformamide, NN-diethylformamide, N
N-dimethylacetamide, N,N-diethylacetamide, N,N-dipropylacetamide, NN-dimethylbenzoic acid amide, N-methyl-2-pyrrolidone (NMP
), N-ethyl-2-pyrrolidone, N-isopropyl-2-pyrrolidone, N-isobutyl-2-pyrrolidone,
Nn-propyl-2-pyrrolidone, Nn-butyl-2
-pyrrolidone, N-cyclohexyl-2=pyrrolidone,
N-methyl-3-methyl-2-pyrrolidone, N-ethyl-3-methyl-2-pyrrolidone, N-methyl-3,4,
5-) Dimethyl-2-pyrrolidone, N-methyl-2-biben, N-ethyl-2-piperidone, N-isopropyl-2-piperidone, N-methyl-6-methyl-
2-piperidone, N-methyl-3-ethylpiperidone,
Dimethyl sulfoxide, diethyl sulfoxide, ■-methyl-1-oxosulfolane, 1-ethyl-1-oxosulfolane, 1-phenyl-1-oxosulfolane, N
Examples include N'-dimethylimidazolidinone (DMI) and diphenylsulfone.

Preferred are NMP, DMI, sulfolane, diphenylsulfone and dimethylsulfoxide, particularly preferred is NMP.

Note that these solvents may be used alone, or
If necessary, two or more types may be used in combination. Further, if necessary, it can be used as a mixed solvent with other solvents such as aromatic hydrocarbon solvents. For example, by using an aromatic hydrocarbon that easily azeotropes with water, such as toluene, in combination with the above-mentioned neutral polar solvent, water generated by condensation or the like during the polymerization reaction can be effectively removed from the reaction system.

The usage ratio of the dihalogenobenzonitrile is the molar ratio to the total amount of dihalogenobenzonitrile and 1,4-bis(4-1-8-benzyl)benzene, and the usage ratio of the dichlorobenzonitrile is usually 0.1 to 0. The ratio of the alkali metal compound used is the ratio of 4,4'
-Usually 1.01 to 2 per hydroxyl group of biphenol
, 50 equivalents, preferably 1.05 to 1.25 equivalents.

There is no particular restriction on the amount of the neutral polar solvent used, but usually the dihalogenobenzonitrile and the 4,4
'-Biphenol and the alkali metal compound total 1
The amount is selected in the range of 200 to 2,000 parts by weight per 00 parts by weight.

The reaction product obtained by reacting the dihalogenohenzonitrile with the 4,4'-biphenol in the presence of the alkali metal compound and the neutral polar solvent and the 1,4-bis(4-halo benzoyl) benzene.

The number of 1.4-bis(4-halobenzoyl)benzene to be used is expressed by the following formula (wherein, Y is a halogen atom, and 2 in the formula
The two Y's may be the same or different. ), and among these, 1.4bis(
4-chlorobenzoyl)benzene, 14-bis(4-fluorobenzoyl)benzene, and 1-(4-chlorobenzoyl)-4-(4-fluorobenzoyl)benzene are preferred, particularly 1°4-bis(4-chlorobenzoyl)benzene. Benzoyl)henzene and hibis(4-fluorobenzoyl)benzene are preferred.

In addition, these may be used individually by 1 type, and may use 2 or more types together as needed.

The i,4-bis(4-halobenzoyl)benzene is
The molar ratio of the total amount of 1.4-bis(4-halobenzoyl)benzene and dihalogenobenzonitrile to the amount of 4.4′-biphenol used is usually 0.98 to
It is used at a ratio of 1.02, preferably 1.00 to 1.01.

To obtain the polyether copolymer, for example, the dihalogenohenzonitrile, the 4,4'-biphenol, and the alkali metal compound are simultaneously added to the neutral polar solvent, and the 5 6 After reacting the dihalogenobenzonitrile with the 4.4'-1=-phenol, the 1,4bis(4
-Halobenzoyl)benzene is added, usually from 150 to
The series of reactions is carried out at a temperature of 380°C, preferably in the range 180-350°C. reaction temperature is 150
Below °C, the reaction rate is too slow to be practical;
Exceeding 350'C may cause side reactions.

In addition, the reaction time of this series of reactions is usually 0°1~・
The duration is 10 hours, preferably 1 to 5 hours.

After completion of the reaction, the polyether copolymer is separated and purified from the neutral polar solvent solution containing the obtained polyether copolymer according to a known method to obtain a polyether copolymer. be able to.

In this way, a polyether copolymer can be efficiently produced in a simple process.

Moreover, a polyether copolymer powder having a large bulk density can be obtained from the polyether copolymer-containing neutral polar solvent solution.

The polyether copolymer obtained as above is
It has excellent properties such as heat resistance and mechanical strength, and is used as a component of the resin composition of the present invention.

Heat-resistant thermoplastic resin The heat-resistant thermoplastic resin used as a compounding component of the resin composition of the present invention is not particularly limited, and various known ones can be used, but usually, for example, Various thermoplastics such as polycarbonate, polyether sulfone, polyether imide, polyether ether ketone, polycyanoaryl ether, polyester (polyethylene terephthalate, polybutylene terephthalate, Bolyaryl 1-5 wholly aromatic polyester, etc.), polyphenylene sulfide, etc. engineering resins and various other thermoplastic resins having similar heat resistance and mechanical strength can be suitably used.

In addition, these can be used by appropriately selecting one type or two or more types depending on the purpose.

Inorganic filler The inorganic filler used as a compounding component of the resin composition of the present invention is not particularly limited, and various kinds of fillers, including those conventionally used in thermoplastic resins such as thermoplastic engineering resins, can be used. can do.

Specifically, for example, various fibrous inorganic substances represented by fiber reinforcement materials such as carbon fiber, glass fiber, alumina fiber, silicon nitride fiber, and carbon whiskers, titanium oxide, aluminum oxide, silicon oxide, magnesium oxide, etc. metal oxides, talc, clay, various clays or minerals such as montmorillonite, ben I night, dolomite, various carbonates such as calcium carbonate, magnesium carbonate, barium carbonate, calcium sulfate, calcium sulfite,
Various metal salts such as various sulfates or sulfites such as magnesium sulfate, metals such as copper, iron, zinc, aluminum, nickel, various carbides such as silicon carbide, silicon nitride,
Examples include ceramics such as various nitrides such as aluminum nitride, titanium nitride, and boron nitride, and other inorganic fillers such as graphite, carbon black, and asbestos.

Among these, fiber reinforcing materials such as carbon fibers and glass fibers are particularly preferably used because they are particularly effective in improving mechanical strength and the like.

Note that the various inorganic fillers described above may be used alone or in combination of two or more.

The shape of the inorganic filler to be added and blended is not particularly limited, and may be appropriately selected in consideration of the purpose of use, moldability, etc.

Generally, when using a fibrous inorganic substance such as the above-mentioned fiber reinforcing material, the average particle size is usually about 5 to 20 μm, and the aspect ratio is preferably about 100 to 3,000. .

Note that the fibrous inorganic substance can also be used in the form of a filler, if necessary.

If the particle size (particle size and aspect ratio in the case of a fibrous inorganic substance) of the inorganic filler to be added and blended is too large, uniform dispersibility may deteriorate and moldability may deteriorate. . On the other hand, ultrafine particles with a significantly small particle size are -g more expensive, so the manufacturing cost increases accordingly. Moreover, those with a small aspect ratio may not exhibit sufficient effects as a fiber reinforcing material.

Composition of Resin Composition (Blending Ratio) The resin composition of the first invention of the present invention comprises at least the polyether copolymer and the heat-resistant thermoplastic resin; The proportion of the polyether copolymer component to the total amount of the component and the heat-resistant thermoplastic resin component is 10 to 90% by weight, preferably 30 to 90% by weight.
This is a resin composition in which the proportion is within the range of 80% by weight.

Here, if the blending ratio of the polyether copolymer component is less than 10% by weight, the improvement in mechanical strength and imparting flame retardance will be insufficient;
If the amount exceeds % by weight, the effect of adding the polyether copolymer to the heat-resistant thermoplastic resin will no longer be apparent.

The resin composition of the second invention of the present invention includes at least the polyether copolymer and the inorganic filler relative to the total amount of the polyether copolymer component and the inorganic filler component. The proportion of the polyether copolymer component is 30 to 99% by weight, preferably 70 to 95% by weight (therefore, the proportion of the inorganic filler component to the total amount is 70 to 1% by weight, preferably 30 to 5% by weight) % by weight].

Here, if the blending ratio of the inorganic filler component is 1% by weight,
If it is less than 70% by weight, the effect of adding the inorganic filler will not be sufficiently exhibited, and on the other hand, if the proportion exceeds 70% by weight, the molding processability of the resin composition will decrease.

The resin composition of the third aspect of the present invention combines the polyether copolymer, the heat-resistant thermoplastic resin, and the inorganic filler with the polyether copolymer component and the heat-resistant thermoplastic resin. The ratio of the polyether copolymer component to the total amount of the components is within the range of 10 to 90% by weight, and the polyether copolymer component, the heat-resistant thermoplastic resin component, and the inorganic filler The ratio of the inorganic filler component to the total amount of material components is ~50% by weight, preferably 15~50% by weight
This is a resin composition in which the proportion is within the range of 40% by weight.

Here, if the blending ratio of the polyether copolymer component is less than 10% by weight, the improvement in mechanical strength and imparting flame retardance will be insufficient; on the other hand, if the blending ratio is less than 90% by weight, If it exceeds this, the effect of adding the polyether copolymer to the heat-resistant thermoplastic resin will no longer be apparent.

Furthermore, even if the blending ratio of the polyether copolymer component and the heat-resistant thermoplastic resin component is within the predetermined range, if the blending ratio of the inorganic filler component is less than % by weight. , the effect of adding inorganic fillers is not fully demonstrated,
On the other hand, when the blending ratio exceeds 50% by weight, the moldability of the resin composition decreases.

In addition, each resin composition of the present invention may contain other compounding ingredients other than the above-mentioned respective components, such as a plasticizer, an antioxidant, an ultraviolet absorber, a lubricant, and a mold release agent, as desired. , various additive components such as additives commonly used in thermoplastic resin compositions such as conventional heat-resistant thermoplastic resin compositions such as colorants, or other resin components that do not interfere with the purpose of the present invention. It can be contained as appropriate within a range where it is not included.

Manufacture of resin composition - The resin composition of the present invention is produced by blending the polyether copolymer component and the heat-resistant thermoplastic resin component and/or the inorganic filler in the predetermined ratios, respectively. Alternatively, in addition to these predetermined components, desired components among the other components described above can be appropriately blended as necessary.

There is no particular restriction on the order of blending, and each component may be blended simultaneously or in stages. For example, when producing the resin composition of the third invention, a method of simultaneously blending the polyether copolymer, the heat-resistant thermoplastic resin, and the inorganic filler; A method of producing a resin composition of the first invention by blending a copolymer and the heat-resistant thermoplastic resin, and blending this with the inorganic filler, the heat-resistant thermoplastic resin and the inorganic filler. Examples include a method of manufacturing by blending a composition obtained by blending the polyether copolymer with the polyether copolymer.

When producing the resin composition of the present invention, the blending of the polyether copolymer with the heat-resistant thermoplastic resin and/or the inorganic filler, or the blending of these components with the other components is as follows: The compounding process can be carried out by various methods such as those commonly used in the production of known heat-resistant thermoplastic resin compositions. A method of heating and kneading at a temperature at which the resin components are in a molten state is preferably employed so that the components to be subjected to the mixing are sufficiently uniformly mixed.

This kneading temperature varies depending on other conditions such as the type and composition of the resin used, so it cannot be determined by law, but it is usually about 300-500°C, preferably 350-500°C.
It is appropriate that the temperature be within a range of about 430°C.

The appropriate melt-kneading time is usually about 1 to 10 minutes, preferably about 2 to 5 minutes.

Note that this melt-kneading can be performed using various types of equipment, but usually, for example, a kneader or extruder in which two or more screws rotate in the same or different directions, or a kneader or extruder in which two or more screws rotate back and forth as they rotate. A single-screw extruder that reciprocates can be suitably used.

The resin composition of the present invention can be obtained as described above.

The obtained resin composition is molded into a pellet or the like, if necessary, and further subjected to hot pressure molding such as injection molding to be used as a molded article of a desired shape.

Note that this molding may be performed separately after cooling the obtained resin composition as appropriate, or may be performed directly from the resin composition in the molten mixed wire state, or may be performed using a combination of these as appropriate. good.

The resin composition of the present invention produced as described above is
Excellent properties such as heat resistance (thermal decomposition resistance during melt-kneading and molding, and heat resistance during use), mechanical properties such as mechanical strength, chemical resistance, and solvent resistance, as well as excellent flame retardancy. Furthermore, it has various advantages such as extremely good moldability, and can be suitably used as a material for various polymer molded products such as mechanical parts and electrical/electronic devices. can.

[Examples] Next, the present invention will be described in more detail by showing examples and comparative examples of the present invention, but the present invention is not limited to these examples.

Example 1 ■Production example of polyether copolymer Equipped with a Dean-Starck trap filled with toluene, a stirring device, and an argon gas blowing pipe, with an internal volume of 5 f! , 2,6-cyclobenzonyl I-IJ 38.7
0g (0,225 mol), 4,4'-biphenol 13
9.66 g (0.75 mol), potassium carbonate 124.3
9 g (0.9 mol) and N-methylpyrrolidone 1.
A temperature of 5°C was introduced, and the temperature was raised from room temperature to 195'C over 1 hour while blowing argon gas.

After raising the temperature, a small amount of toluene was added and the produced water was removed by azeotropy.

Then, after performing a reaction at a temperature of 195°C for 30 minutes,
1,4-bis(4-fluorobenzoyl)henzen 16
9.2 g (0,525 mol) of N-methylpyrrolidone 1
．． A solution dissolved at 5°C was added and the reaction was further carried out for 1 hour.

After the reaction is completed, the product is pulverized using a blender (manufactured by Warning Co., Ltd.), washed with acetone, methanol, water, and acetone in that order, and then dried to obtain a white powdery copolymer 3.
04.0 g (yield 98%) was obtained.

7 8 The structure of the obtained copolymer consists of the following repeating unit (I
) N and the next repeating unit [ff], consisting of repeating unit (1) and repeating unit C11
) was a polyether copolymer having a molar ratio of 0.30:0.70.

In addition, when the properties of this copolymer were measured, the melt viscosity (zero shear viscosity) at a temperature of 400°C was 13
．． 000 voids, and the glass transition temperature is ]90°C1
The crystal melting point is 384" C1 thermal decomposition onset temperature 565 ° C (
5% weight loss in air), demonstrating high heat resistance.

■Production example of resin composition The pellets of the polyether copolymer produced in the above (■) and polycarbonate (manufactured by Idemitsu Petrochemical Co., Ltd.: Idemitsu Carbonate A2500) were blended in a weight ratio of 50:50,
The mixture was melt-kneaded at 365° C. for a kneading time of 3 minutes, and extrusion molded using an extruder with an inner diameter of 30 mm to obtain a pellet-shaped resin composition.

Next, this pellet-shaped resin composition was injection molded to obtain a test piece.

For this test piece, the heat distortion temperature (ASTMD64B)
and oxygen index (ASTM-D286) were measured.

Note that the larger the oxygen index, the higher the flame retardancy.

The results are shown in Table 1.

Examples 2 to 6 In Examples 2 and 4 to 6, the polyether copolymer produced in Example 1 (■) was used, and in Example 3, instead of this, the raw material charging ratio was changed in Example 1 (■). The repeating unit [1] and repeating unit (II) produced in the same manner except for
) in a molar ratio of 40:60, and each heat-resistant thermoplastic resin shown in Table 1 was used instead of polycarbonate I-, and the blending ratio was as shown in Table 1. Each resin composition was produced in the same manner as in Example 1, except that the proportions shown in (1) were used, and test pieces were molded. The heat distortion temperature and oxygen index of each of the obtained test pieces were measured in the same manner.

The results are shown in Table 1.

Comparative Examples 1 to 5 Example 1 was prepared for each heat-resistant thermoplastic resin shown in Table 1 without blending a polyether copolymer.
The heat distortion temperature and oxygen index were measured using the same measurement method as in (2).

The results are shown in Table 1.

Example 7 The same polyether copolymer as used in Example 3 and glass fibers (2PX1 manufactured by Asahi Fiberglass Co., Ltd.) with an average fiber diameter of 10 μm and an average fiber length of 3 mm were mixed in a weight ratio of 70:
The resin composition was blended at a ratio of 30%, kneaded at 360°C in an extruder, extruded, and cut to obtain a belent-like resin composition. This pellet was injection molded to obtain a test piece.

Mechanical properties such as mechanical strength were measured for this test piece.

The results are shown in Table 2.

Example 8 The same polyether copolymer used in Example 3 and carbon fiber (Nitoreca T300 manufactured by Toshi Co., Ltd.) with an average fiber diameter of 9 μm and an average fiber length of 10 mm were mixed in a weight ratio of 70:30.
The resin composition was blended in the following proportions, kneaded in an extruder at 350'C, extruded, and cut to obtain a pellet-shaped resin composition. This pellet was injection molded to obtain a test piece.

Mechanical properties such as mechanical strength were measured for this test piece.

The results are shown in Table 2.

1 Examples 9 to 11 The polyether copolymer produced in Example 1 (■) and the third
Resin compositions were produced in the same manner as in Example I except that the heat-resistant thermoplastic resins and inorganic fillers shown in the table were blended in the proportions shown, and test pieces were obtained.

For each of the obtained test pieces, the heat distortion temperature and oxygen index were measured using the same measurement method as in Example 1 (2).

The results are shown in Table 3.

2 Comparative Examples 6 to 8 The same procedure as in Example 1 (■) was carried out except that the heat-resistant thermoplastic resin and inorganic filler shown in Table 3 were blended in the indicated ratios without blending the polyether copolymer. Each composition was manufactured by operation and used as a test piece, and the heat distortion temperature and oxygen index were measured in the same manner.

The results are shown in Table 3.

4 3 Table 2 36 5 [Effects of the Invention] According to the present invention, since a specific polyether copolymer and a heat-resistant thermoplastic resin and/or an inorganic filler are blended in a specific ratio, molding process is easy. It has excellent flame retardancy, heat resistance, and maintains sufficiently high mechanical strength even at high temperatures.
A resin composition having mechanical properties can be provided.

Claims (1)

[Claims] 1. The following general formula [I] ▲There are mathematical formulas, chemical formulas, tables, etc.▼The repeating unit represented by [I] and the following formula [II] ▲There are mathematical formulas, chemical formulas, tables, etc. ▼ [II] The content of the repeating unit represented by the above formula [I] and the above formula [II]
] The ratio of the content of the repeating unit represented by the formula [I] to the total content of the repeating unit represented by [I] (molar ratio {[I]/([I]+[II])}) is 0.1~0
．． 8, and the melt viscosity at 400°C is 1,
000 poise or more and a heat-resistant thermoplastic resin, and the ratio of the polyether copolymer to the total amount of the polyether copolymer and the heat-resistant thermoplastic resin is 10 to 10. A resin composition characterized in that the content is 90% by weight. 2. Consisting of the polyether copolymer according to claim 1 and an inorganic filler, the ratio of the polyether copolymer to the total amount of the polyether copolymer and the inorganic filler is 30 to 99. % by weight. 3. Consisting of the polyether copolymer according to claim 1, a heat-resistant thermoplastic resin, and an inorganic filler, the polyether copolymer is The ratio of the polymer is 10 to 90% by weight, and the ratio of the inorganic filler to the total amount of the polyether copolymer, the heat-resistant thermoplastic resin, and the inorganic filler is 1 to 50% by weight. A resin composition characterized by the following.