JPH1087878A - Inorganic-composite resin composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inorg.-composite resin compsn. excellent in impact strength, heat resistance, and gas-barrier properties by finly dispersing a specific intercalation compd. in a thermoplastic resin. SOLUTION: An aminoalcohol deriv. having an onium group is inserted into between the layers of a swellable intercalation compd. having an electric charge density in the layer plane of 40-100Å<2> /charge and an interlayer distance d(001) (X-ray diffraction) of 7-13Å to give an intercalation compd. having an interlayer distance (X-ray diffraction) of 10-25Å and an ion-exchange capacity of 25-90meq/100g. 0.5-60wt.% intercalation compd. thus obtd. is added to a thermoplastic resin and brought into contact with the resin at a certain shear rate or higher to be finely dispersed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is excellent in impact resistance, heat resistance and gas barrier properties,
The present invention relates to an inorganic composite resin composition applicable to aircraft parts, building materials, and the like.

[0002]

2. Description of the Related Art Conventionally, in various fields, resin compositions having high mechanical strength have been required, but rigidity, heat resistance and impact resistance are improved by dispersing a filler in the resin. That is being done. In particular, many attempts have been made to improve mechanical properties and heat resistance by dispersing a filler at a nano-level in a polymer material.

[0003] For example, JP-A-2-10226 discloses an intercalation compound in which an organic cation is inserted between layers of a layered clay mineral, a monomer is inserted where the interlayer distance is widened, and then the monomer is polymerized. It is described that an interlayer compound is dispersed at a nano level by utilizing polymerization energy at the time of the polymerization. At that time, in the polycondensation reaction of polyamide, polyester, etc., the organic cation is converted into monomer hydrochloride,
Alternatively, an intramolecular cyclic salt, a monoester carboxylic acid, or the like can be used instead. In another method, the layered clay mineral is swelled in advance with an organic cation, and the clay mineral is further infinitely swelled with an organic solvent to form a card house structure. Attempts to disperse clay minerals at the nano level are known.

[0004]

However, in the former method among the above-mentioned methods, although the filler is efficiently dispersed, equipment for polymerization is required, the production cost is increased, and the method is not economical. At present, the reaction is also carried out by radical polymerization or cationic polymerization in which a reactive monomer used in a polycondensation system or a thermosetting resin employed in polyamides and polyesters is inserted between layers and polymerized. limited. In addition, since the monomer to be inserted between the layers must be stably present between the layers, it is not preferable that the monomer is a gas at a high pressure, and is limited to a liquid monomer. Therefore, there is a disadvantage that only a low concentration of filler can be obtained with a limited resin material in order to obtain a resin composition in which an Angstrom level filler is dispersed.

As a method for improving this, in the case of polyester, Japanese Patent Application Laid-Open No. 63-230766,
As disclosed in JP-A-47644 and JP-A-7-70357, a method of directly dispersing a polymer by contacting a solvent and infinitely swelled with a hydrophobic resin has been proposed. However, these methods have to use a large amount of organic solvent. In addition, some polymers have extremely poor solubility in organic solvents, and do not allow the infinitely swollen layered mineral to form a solid solution in the polymer. Such a compound has extremely poor affinity for the solvent even when the resin is molten. As a result, the infinitely swelling layered mineral prepared in advance by the organic cation treatment is hardly dispersed and affinityd even when brought into contact with the above-mentioned polymer in the melt state, and does not reach complete dispersion.

[0006] Even when the interlayer compound obtained by contacting the layered mineral with an organic cation is infinitely swelled by an organic solvent, the organic solvent is heated by the heat in the extruder during the process contact with the molten resin. Due to partial volatilization, the state returns from the infinite swelling state to the swelling state, and the polymer is dispersed in the process. Therefore, in actuality, contact with the melt polymer occurs in the process of reducing the interlayer distance, and complete dispersion cannot be obtained. An amorphous resin having a good affinity for an organic solvent, in the case of a combination having a high affinity for an organic solvent, the dispersion can be imperfectly dispersed even in the above-mentioned production method, but is good for a crystalline material. It is extremely difficult to obtain a good dispersion.

For this purpose, an extruder has been devised. That is, as shown in JP-A-7-70357, when the screw length (L) of the extruder is represented by the ratio of screw length / screw diameter (D) = L / D, 45 or more is adopted. In addition to prolonging the contact time, it is necessary to disperse the layered compound infinitely swelled with the organic solvent by injecting it from the side of the barrel with a pump. Alternatively, it is necessary to use a kneading device such as a Banbury mixer as a batch type. However, since the removal of the solvent is difficult, the processing amount is significantly reduced, which is not economical.

The present invention has been made in order to solve the restrictions caused by the polymerization reaction and to solve the economical disadvantages caused by using a special extruder and an organic solvent.
An object of the present invention is to provide an inorganic composite resin composition excellent in rigidity, heat resistance and impact resistance by dispersing an inorganic filler finely at a nano level directly in a resin.

[0009]

That is, the present invention relates to a method for producing a swellable layered compound (a), which comprises inserting an amino alcohol derivative (b) having an onium group between the layers, and measuring the results by X-ray diffraction. A composite in which an interlayer compound having a distance of 10 to 25 ° is finely dispersed in a thermoplastic resin,
An object of the present invention is to provide an inorganic composite resin composition in which the composition ratio of the interlayer compound is 0.5 to 60% by weight.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The swellable layered compound (a) in the present invention is mainly composed of a clay mineral, and examples thereof include a swellable clay mineral, zirconium phosphate, and chalcogen glass. Particularly preferred are layered clay minerals, and those satisfying the following formula are preferred. G. FIG. LAOGL
Y, A. According to WEISS et al., The charge density per unit cell in a layer plane is expressed as a measure that easily swells organic cations. If an example of a clay mineral is shown, the clay mineral, that is, a silicate compound can be represented by the following formula. M ^{n +} _{(x + y + z) / n} ((M ⁺ _e1 M ⁺ _e2 M ⁺ _e3 ) _Z-3 ^(6-X) (OH _2-Z O _Z ) (Si _4-y
Al _y ) O ₁₀ } ^{(x + y + z)} (x + y + z); layer charge of silicate M is an exchangeable metal ion between layers and is selected from the group consisting of alkali metal ions and alkaline earth metal ions. At least one cation. For example, Li, Na,
K, Be, Mg, Ca and the like. M ⁺ _e1 M ⁺ _e2 M ⁺ _e3 is
M ⁺ _e1 alone or a combination of M ⁺ _e1 and a plurality of combinations of M ⁺ _e2 M ⁺ _e3 , which are cations entering into an octahedron formed in a smectite or mica structure, wherein M ⁺ _e1 is Mg, F
e, Mn, Ni, Zn, and M ⁺ _e2 , M ⁺ _e3 are Al, Fe,
Mn and Cr. Ae: Assuming the layer charge density, Ae = d ₍₁₀₀₎ d ₍₀₁₀₎ / 2 (x + y + z) As the layered mineral having a high layer charge density, vermiculite, swelling mica, and large single crystal size And smectite.

Swellable silicates such as montmorillonite and vermiculite are represented by the following formula. Nax (Al _2-x Mg) Si _4-y Al _y O ₁₀ (OH) ₂ More specifically, for example, a synthetic product of Kunimine Industry Co., Ltd. generally has a chemical formula of Na _0.83 Mg ₃ [Si _3.575 Al _0.415 ) O ₁₀ ] (OH) ₂ . x has a charge of 0.83, but x varies greatly with the layer charge density. As an example of the fluorine-based swollen mica, there is a tetrasilic mica manufactured by Topy Industries, and its descriptive formula is NaMg _2.5 (Si ₄ O ₁₀ ) F ₂ . Examples of the sodium teniolite include NaMg ₂ Li (Si ₄ O ₁₀ ) F ₂ in the chemical formula.

The above layered mineral has a charge density in the layer plane of 4
0 ≦ Ae ≦ 100Å ² / but those Charge ranges are used, since the spreadability of the interlayer distance when the organic cation intercalate is greatly related with the layer plane charge density, preferably 40 ≦ Ae ≦ 80Å ² / Ch
arge, particularly preferably 40 ≦ Ae ≦ 60Å ² / Ch
arge. As the silicate compound, the above silicate compound does not exist at 40 ° / Charge or less. 40-6
At 0 ° / Charge, it shows high swelling properties as swelling mica. Also, it exists as vermiculite at 60 to 80 ° / Charge. It exists as smectite in the range of 80 to 150 ° / Charge. For more than 200 そ れ / Ch
Although compounds exist as smectites up to arge, swelling is poor with small amounts of organic cations.

The amount of organic cation exchange can be determined by a column permeation method (refer to “Clay Handbook”, 2nd edition, edited by The Clay Society of Japan, pages 576-577, published by Tsukudo) or a methylene blue adsorption method (standard test by the Bentonite Industry Association of Japan). Law, JBAS-
107-91) and the like to measure the cation exchange amount (CEC) of the intercalation compound. The lattice constant was determined from the result of the structural analysis by the Liberty method by powder X-ray diffraction, and the charge amount (x + y +
z) is calculated, and based on these results, it is calculated as the charge of interlayer ions per unit cell.

It is In the present invention, by a layer plane charged as layered compound chooses compound of 40-100 ² / Charge, layer in which an organic cation is adjacent a layer between that layer laminated influence of van der Waals forces Can be smaller. On the other hand, the charge density in the layer surface of the layered mineral is 40Å ² /
Below Charge, there is no crystal form of the above composition formula.

Further, the layered compound used in the present invention comprises:
The distance between the bottom surfaces before contact with the organic cation, that is, the so-called interlayer distance d (001), is preferably in the range of 7 to 13 angstroms by X-ray diffraction. As preferred examples, those having a smectite structure include, for example, vermiculite, montmorillonite, beidellite, nontronite, volcon core tight, saponite, iron saponite, and swellable mica such as tetrasilicic mica,
And teniolite. When an organic cation acts on a layered compound having a charge density in a layer plane within the above range,
When the amount of organic cation is small, G.Lagaly,
A. Weiss "Determination of Charge in Mica-type” In
As described in the ternational Clay Conference, Page 61-80, 1969, it is known that as the charge amount of (x + y + z) increases, the interlayer distance increases even with less organic cations.

Here, when the amount of the organic cation is small,
The molecular conformation in the interlayer is one molecule parallel to the layer. However, as the amount of organic cation increases, as the amount of organic cation increases, there is a columnar angle in the interlayer. Becomes two conformers. It is known that when the added amount of the organic cation is further increased, when the added organic cation is oriented at a certain angle with respect to the layered mineral, the layer where the organic cation is arranged in two layers or a single layer is spread. Have been.

It is also described that, at that time, the longer the molecular chain length of the organic cation, the greater the interlayer distance. However, the aliphatic alkylammonium salt used as the organic cation needs to have a long carbon chain and must have a high molecular weight. As a result, there is a problem that the heat resistance is significantly reduced.

In addition, if the amount of addition is to be mentioned, even if the amount of charge in the layer surface is large, such as mica, as a layered compound, an organic cation such as a linear aliphatic alkyl ammonium salt can be used to increase the interlayer distance. It is known that a certain number is necessary. That is, a step of increasing the amount of the organic cation to greatly increase the interlayer distance is indispensable. However, when the amount of the organic cation is increased, a large amount of the organic cation added to the polymer remains,
There has been a problem that the heat-resistant deformation temperature is lowered and satisfactory performance cannot be exhibited. In order to avoid the above-mentioned drawbacks, in the conventional method, at the time of dispersing a layered compound in a polymer, at least an alkyl group is used as an organic cation as an aliphatic alkylammonium salt which widens the interlayer distance like a conventional tetraalkylammonium salt. One having a carbon number of 16 or more and less than 25 is recommended.

The present invention is intended to effectively increase the interlayer distance by selecting an organic cation having a small molecular weight and effectively opening the interlayer distance with a small amount of addition. The inventors have conducted studies to increase the interlayer distance in this way so that even a small amount of organic cation having a small addition amount and a short chain length can be an organic cation that can effectively open the interlayer distance. Compared with the conventional tetraalkylammonium salt, when intercalated into a layered compound and used as a composite material, the resin composition has an excellent heat resistance as compared with the conventional tetraalkylammonium salt. It has been found that it has resistance, impact resistance, and rigidity.

The inorganic composite resin composition according to the present invention is obtained by kneading with a resin using an interlayer compound obtained by intercalating an amino alcohol derivative having an onium group as an organic cation into a layered compound. Shows higher performance in heat resistance, impact resistance, and rigidity than the tetraalkylammonium salt. The amino alcohol derivative (b) having an onium group in the present invention is not particularly limited, and various amino alcohol derivatives having an onium group (hereinafter, referred to as “alcohol derivatives”) can be used.

As specific examples of the alcohol derivative (b) of the present invention, examples of the monohydric alcohol derivative include n-
Butyldimethylmonoethanolammonium chloride, n-hexyldimethylmonodiethanolammonium chloride, n-octyldimethylmonoethanolammonium chloride, n-decyldimethylmonoethanolammonium chloride, n-dodecyldimethylmonoethanolammonium chloride, n-propadecyldimethylmonoethanol Ammonium chloride, n-hexadecyldimethylmonoethanolammonium chloride, n-octadecyldimethylmonoethanolammonium chloride, isacosyldimethylmonoethanolammonium chloride, etc., in which the alkyl of the above compound is branched to iso or to the side chain. There may be.

Examples of the dihydric alcohol derivative include, for example, n-butylmonomethyldiethanolammonium chloride, n-hexylmonomethyldiethanolammonium chloride, n-octylmonomethyldiethanolammonium chloride, n-decylmonomethyldiethanolammonium chloride, n-dodecylmonomethyldiethanol Ammonium chloride, n-butyldecylmonomethyldiethanolammonium chloride, n
-Hexadecylmonomethyldiethanolammonium chloride, n-octadecylmonomethyldiethanolammonium chloride, isacosylmonomethyldiethanolammonium chloride and the like, and the alkyl group of the above compound may be iso or branched to the side chain.

Specific examples of the trihydric alcohol derivative include, for example, n-butyltriethanolammonium chloride, n-hexyltriethanolaminoammonium chloride, n-octyltriethanolammonium chloride, n-decyltriethanolammonium chloride, -Dodecyltriethanolamine ammonium chloride, n-butyldecyltriethanolammonium chloride, n-hexadecyltriethanolammonium chloride, n-octadecyltriethanolammonium chloride, isacosyltriethanolammonium chloride, and the like. May be iso or branched to the side chain.

Examples of alcohol derivatives containing an ether bond in the molecular chain include N-butyl N-monomethylethylene ether N-ethanol ammonium chloride, n-hexyldimethyl N-butyl N-diethylene ethanol-monoethanol. Ammonium chloride, n-octyldimethylmonoethanolammonium chloride, n-decyldimethylmonoethanolammonium chloride, n-dodecyldimethylmonoethanolammonium chloride, n-butyldecyldimethylmonoethanolammonium chloride, n-hexadecyldimethylmonoethanolammonium chloride, n
-Octadecyldimethylmonoethanolammonium chloride, isaacosyldimethylmonoethanolammonium chloride and the like, and the alkyl of the above compound may be iso or branched to the side chain.
As a guideline when employing the above alcohol derivatives, the longer the carbon, the wider the interlayer distance and the easier the dispersion becomes. However, it is appropriately selected in consideration of the poor heat resistance of the ammonium salt.

FIG. 1 shows a conventional tetraalkylammonium salt intercalated into a layered clay mineral to prepare an interlayer compound, and the interlayer distance was examined. FIG. 1 shows teniolite having an in-layer charge of 40 to 90 ° / Charge and an in-layer charge of 160 ° / Charge.
The hectorite which is e is reacted with a triethylammonium salt, and the carbon number of the alkyl group and the interlayer distance d (001)
It shows the relationship with. From this figure, in the case of teniolite having a large charge amount in the layer, a positive correlation is seen in which the interlayer distance increases linearly according to the number of carbon atoms in the alkyl group.
On the other hand, in the case of hectorite, the interlayer distance does not change much until the carbon number of the alkyl group is up to 15, and a phenomenon in which the interlayer distance sharply increases only when the carbon number exceeds 15 is observed. This is because, in the case of teniolite, the organic cation conforms vertically to the clay mineral layer plane, and horizontally to the interlayer between adjacent layers on both sides. It is considered to be formed. These are supported by observation by X-ray diffraction.

In the present invention, the interlayer distance of the interlayer compound measured by X-ray diffraction is 10 to 25 °, preferably 15 to 25 °. If the interlayer distance is less than 10 °, the dispersion will be insufficient and the improvement effect will be poor. On the other hand, if it exceeds 25 °, a decrease in heat resistance due to organic cations becomes a problem, which is not preferred.

As shown in the present invention, when the organic cation has a functional group serving as an electron donor such as a hydroxyl group, the charge balance in the layer surface is disrupted by the adsorption of the hydroxyl group, and the positive charge of the organic cation is conformed. The degree of polarization on the opposite side is greater than when a tetraalkylammonium salt is applied, and the bonding force due to polymer adsorption is increased. It has been found that a dispersing effect can be produced and that a large effect can be obtained with a small molecular weight. This discovery has until now required the use of very long organic cations to increase the interlayer distance and reduce the electrical attraction between the layers. However, a large molecular weight per equivalent of ion substitution causes a decrease in the melting point of a polymer of a crystalline material when forming a composite, and a decrease in the softening point of an amorphous material. Problems can now be solved.

The thermoplastic resin used in the present invention is not particularly limited as long as it has a polar group.
Polyamide, aromatic polyester and its copolymer, aliphatic polyester and its copolymer, AS resin, ABS
Resins, polyphenylene ether, polyphenylene sulfide, polyacetal, polycarbonate and the like can be mentioned.

The inorganic composite resin composition of the present invention has a composition of 40
Through the step of contacting an organic cation having a hydroxyl group swellable layered compound having a high layer plane charge density of ~100Å ² / Charge, the step of contacting with the resulting layered compound and heat is a thermoplastic resin shear rate higher Obtainable. The step of contacting the layered compound with the thermoplastic resin is characterized by the discovery and application of organic cations that reduce the electrical attraction between layers without using an organic solvent or the like. As a result, a composite having improved dispersibility and higher heat resistance than conventional tetraalkylammonium salts could be obtained.

The composition ratio of the layered compound in the resin composition in the present invention is 0.5 to 60% by weight, and 1 to 41% by weight.
% By weight, especially 1 to 20% by weight. If the composition ratio of the layered compound is less than 0.5% by weight, heat resistance and mechanical properties cannot be improved. On the other hand, 60
If the amount is more than 10% by weight, the dispersion of the layered compound becomes insufficient and the effect of the present invention is not exhibited.

[0031]

Next, the present invention will be described in more detail with reference to examples. Example 1 After dissolving 50 g of n-laurylmonomethyldiethanolammonium chloride in 1000 ml of water, the solution was added to tetrasilic mica (manufactured by Topy Industries, Ltd.) and contacted in a suspended state. Next, it is filtered, washed and dried.
The amount of ion exchanged in tetrasilicic mica is 40 meq / 100 g by CEC method and the amount of ion exchange is about 50.
%there were. When the insertion amount was measured with a thermobalance,
Consistent with the law. Further, the interlayer distance (distance between bottom surfaces) d (001) was measured by X-ray diffraction, and the results are shown in Table 1. This was dry-blended so that the content of tetrasilicic mica was 5% by weight and the content of polyamide 6 (molecular weight: 50,000) was 95% by weight. Kneading was performed with a twin screw extruder having a size of 30. The kneading temperature was 250 ° C. in resin temperature. Observation of the dispersion state of the obtained resin composition using a transmission electron microscope revealed that the thickness of the clay mineral layer was 30 °, indicating good dispersion.

When the mechanical properties were measured by the measuring method of ISO178, the flexural modulus was 47000 kg / cm ^2.
And the modulus of elasticity of the raw material polyamide 6 is 25,000 kg / cm
^The performance almost doubled compared to 2. The heat resistance was 18.5 kg / cm ² according to the ISO 75 measurement method.
25 ° C was indicated. The temperature of the raw material polyamide 6 was 64 ° C., which was higher than that of the polyamide 6. When the composite was cut into slices with a microtome to check the degree of dispersion, and 500 or more particles were observed with a transmission electron microscope, the dispersion of the fibrous filler was observed. If the major axis is the major axis and the minor axis is the width direction, the minor axis represents the thickness of the clay mineral, and the arithmetic average of the thickness was taken. Table 1 shows the results.

Example 2 The procedure of Example 1 was repeated, except that the amount of organic cations (CEC) in the intercalation compound was changed to 18 meq / 100 g. Table 1 shows the obtained results.

Example 3 A sample was prepared in the same manner as in Example 1 except that the CEC amount was 80 meq / 100 g. The rest was performed under the same conditions as in Example 1. Table 1 shows the results.

Example 4 Table 1 shows the results obtained in Example 1 using N, N, N, N-lauryltriethanolammonium chloride as the organic cation under the same conditions as in Example 1.

Example 5 An organic cation was prepared and evaluated under the same conditions as in Example 1 except that n-decylmonomethyldiethanolammonium chloride was used. Table 1 shows the results.

Example 6 The procedure of Example 1 was repeated, except that n-octylmonomethyldiethanolammonium chloride was used as the organic cation species under the same conditions as in Example 1. Table 1 shows the results.

Example 7 Preparation and evaluation were performed in the same manner as in Example 1 except that n-hexylmonomethyldiethanolammonium chloride was used as the organic cation species in Example 1. Table 1 shows the results.

Example 8 In Example 1, n-butylmonomethyldiethanolammonium chloride was used as an organic cation species, and polyamide 66 was used as a resin. Thereafter, preparation and evaluation were performed in the same manner as in Example 1. Table 1 shows the results.

Example 9 In Example 1, n-laurylmonomethyldiethanolammonium was used as an organic cation species and kneaded with a resin so that the ratio of the layered compound was 60% by weight. It was prepared and evaluated. Table 1 shows the results.

Example 10 In Example 9, the mixture was kneaded with the resin so that the ratio of the layered compound was 0.5% by weight, and the preparation was carried out in the same manner as in Example 9, and the evaluation was carried out. Table 1 shows the results.

Example 11 The procedure of Example 3 was repeated except that sodium teniolite was used as the layered compound. Thereafter, preparation and evaluation were performed in the same manner as in Example 3. Table 1 shows the results.

Examples 12 to 17 In Example 3, as a thermoplastic resin, polyacetal (Example 12), AS resin (Example 13), polyphenylene sulfide (PPS, Example 14), polyphenylene ether (PPO, Example 15) ), Polybutylene terephthalate (PBT, Example 16) and polycarbonate (PC, Example 17), and the preparation and evaluation were performed in the same manner as in Example 3. Table 1 shows the results.

Comparative Example 1 In Example 1, the organic cation was subjected to ion exchange using n-lauryltriethylammonium chloride.
80 meq / 100 g. Thereafter, evaluation was performed in the same manner. As shown in Table 1, the dispersibility was extremely poor.

Comparative Example 2 An interlayer compound obtained by ion-exchanging n-lauryltriethylammonium chloride as a tetraalkylammonium salt in Example 1 was used, and the ion exchange amount was 40%.
A composite material was prepared with meq / 100 g. Otherwise, the evaluation was performed in the same manner as in Example 1. Table 1 shows the results.

Comparative Example 3 In Example 1, dihexadecyltrimethylammonium chloride was used, and polyamide 66 was used as a resin.
It was kneaded with the resin so that the ratio of the layered compound was 60% by weight. The interlayer distance of the ion-exchanged interlayer compound was 36.5 ° when d (001) was measured by X-ray diffraction, and the interlayer distance was wider than that of Example 1 being 18.7 °. It was found that the bending elastic modulus was not improved with a low ion exchange amount as shown in Example 1 in spite of the fact that the electrical attraction of the sample was small. Therefore, when the thickness of the dispersed silicate layer was measured with a transmission electron microscope, it was found to be 50 °, indicating that the dispersibility was poor.

Comparative Example 4 Dihexadecyldimethylammonium chloride was used in Comparative Example 3 and kneaded with a resin so that the ratio of the layered compound was 0.5% by weight. Thereafter, the same preparation as in Comparative Example 3 was carried out. And evaluated. Table 1 shows the results.

[0048]

[Table 1]

[0049]

INDUSTRIAL APPLICABILITY The inorganic composite resin composition of the present invention is excellent in flexural modulus and heat resistance, and is useful because it is suitably used in various fields such as automobile parts, home appliances, aircraft parts, and building materials. is there.

[Brief description of the drawings]

FIG. 1 is a diagram showing an interlayer distance of an interlayer compound when a triethylalkylammonium salt having a different number of carbon atoms is intercalated into smectite.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C08L 77/00 C08L 77/00 81/02 81/02 81/06 81/06 101/00 101/00

Claims (4)

[Claims] 1. An interlayer obtained by inserting an amino alcohol derivative (b) having an onium group into a swellable layered compound (a) and having an interlayer distance of 10 to 2 as measured by X-ray diffraction.
A composite in which an intercalation compound of 5% is finely dispersed in a thermoplastic resin, wherein the composition ratio of the intercalation compound is 0.5 to 6
0% by weight of the inorganic composite resin composition. 2. The inorganic composite resin composition according to claim 1, wherein the amount of ion exchange of the interlayer compound is 25 to 90 meq per 100 g. 3. The inorganic composite according to claim 1, wherein the swellable layered compound is a clay mineral having a charge amount in the inner surface of the layer of 40 to 100 ° per charge amount, and shows swellability due to organic cations. Resin composition. 4. The inorganic composite resin composition according to claim 3, wherein the swellable layered compound is at least one selected from the group consisting of swellable mica and balm curite.