JPS5953536A - Molding polyamide composition - Google Patents

Abstract

PURPOSE:To obtain titled composition with excellent heat resistance, mechanical, chemical, and physical properties, and moldability, by incorpoating a specific amount of filler in a polyamide formed from a straight-chain aliphatic alkylenediamine and aromatic dicarboxylic acid mixture consisting mainly of terephthalic acid. CONSTITUTION:The objective composition can be obtained by incoporating (A) 100pts.wt. of a polyamide formed from (i) an aromatic dicarboxylic acid mixture consisting of a) 60-100mol% of terephthalic acid and b) 0-40mol% of another aromatic dicarboxylic acid (in particular, isophthalic acid) and (ii) a 6-18C straight-chain aliphatic alkylenediamine (especially, 1,10-diaminodecane) having an intrinsic viscosity of 0.5-3.0dl/g determined in the form of a conc. sulfuric acid solution at 30 deg.C, with (B) up to 200pts.wt. of a filler, pref. (1) 0.5-50pts.wt. of a powdered one with an average size 1mmu-100mu (e.g., graphite) or (2) 0.5- 150pts.wt. of a fibrous one with an average length 0.1-20mm. (e.g., wholly aromatic polyamide fiber, glass fiber), followed by kneading under molten state.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reinforced polyamide composition for molding that has excellent properties in terms of heat resistance, mechanical properties, chemical and physical properties, and molding properties.

In general, thermoplastic resins such as polyolefins, polyesters, and polyamides can be melt-molded such as compression molding, injection molding, or extrusion molding, and have excellent moldability, but have poor heat resistance, mechanical properties, and chemical properties. None of these properties are satisfactory as engineering plastics, and they are used in various general-purpose molding fields by taking advantage of their respective characteristics.

In order to improve the heat resistance properties, mechanical properties, or chemical and physical properties of these thermoplastic resins, compositions have been proposed in which fillers such as glass powder, graphite powder, glass fiber, carbon fiber, etc. are blended with the thermoplastic resins. has been done. Although the above-mentioned properties of reinforced thermoplastic resin compositions containing these fillers are considerably improved, they do not satisfy all of the properties required for high-performance engineering plastics. As mentioned above, plastic resins are only used in the field of molding, making use of their respective characteristics.

Conventionally, polytetrafluoroethylene (Teflon ■), polyparaphenylene terephthalamide (Kevlar ■), 4,4-diaminodiphenyl ether, and pyromellit have been used as engineering plastics with excellent heat resistance, mechanical properties, and chemical and physical properties. Polyimides consisting of composites with acid anhydrides (Kapton, polyhexamethyleneaziboamide (6,6-nylon), poly2,2.
4-) Limethylhexamethylene terephthalamide (Trogamide T■), polyphenylene sulfide, polyacetal, etc. are known. Among these, polytetrafluoroethylene, polyterephthaloyl paraphenylene diamine, and the polyimide toilet seat mentioned above have excellent heat resistance, mechanical properties, and chemical and physical properties, but they have the disadvantage that they cannot be melt-molded. However, its field of use is extremely limited. Among these engineering plastics, polyphenylene sulfide, polyhexamethylene aziboamide (6,6-nylon), 2.2.4-)rimedylhexamethylene terephthalamide (Trogamide T), polyacetal, etc. Polyphenylene sulfide has the characteristic that it can be melt-molded, but polyphenylene sulfide has inferior heat resistance properties such as melting point, glass transition point, and heat distortion temperature, and mechanical properties such as impact strength and abrasion resistance. Polyamides such as methylene adipamide (6,6-nylon) and poly2.2.4-trimethyl'\gisamethylene terephthalamide (Trogamide T) all have heat resistance properties such as glass transition temperature and heat distortion temperature. Tensile strength, bending strength, limit pv
Polyacetal has poor mechanical properties such as value, abrasion resistance, and chemical and physical properties such as chemical resistance, boiling water resistance, and saturated water absorption, while polyacetal has poor heat resistance properties such as melting point, heat distortion temperature, bending strength, impact strength, Each has the disadvantage of poor mechanical properties such as wear resistance.

The present invention was conceived as a result of studying a molding resin composition that has excellent performance in all of heat resistance properties, mechanical properties, chemical and physical properties, and molding properties. We have discovered that a reinforced polyamide composition consisting of a specific polyamide consisting of an aromatic dicarboxylic acid component unit and a linear aliphatic algylene diamine component unit and a filler in a specific amount with respect to the polyamide achieves the above object, and the present invention invention has been achieved. According to the present invention, the reinforced polyamide composition for molding of the present invention has heat resistance properties such as melting point, glass transition point and heat distortion temperature, mechanical properties such as tensile strength, flexural strength, impact strength, coefficient of dynamic friction, and taper wear. It has excellent chemical and physical properties such as chemical resistance, boiling water resistance, and saturated absorption water content, and molding properties such as fluidity of melt compositions, melt compression moldability, melt injection moldability, and melt extrusion moldability. There is a characteristic that

To summarize the present invention, the present invention provides (A) an aromatic dicarboxylic acid component comprising range 121'J of 60 to 100 mol% of terephthalic acid component units and 0 to 40 mol% of aromatic dicarboxylic acid component units other than terephthalic acid component units; consisting of a dicarboxylic acid component unit (a) and a linear aliphatic alkylene diamine component unit having 6 to 18 carbon atoms (b), and has an intrinsic viscosity [η] of less than 0.5 when measured at 30'C in concentrated sulfuric acid. and [B] a polyamide in the range of OJ/g, and [B] more than 0 to 10 parts by weight of the polyamide.
The gist of the present invention is a reinforced polyamide composition for molding, comprising a filler in the range of 0.00 parts by weight and 11 parts by weight.

The resin component is added to the reinforced polyamide composition for molding of the present invention.
The polyamide (A) to be blended with C has a medium content of terephthalic acid component in the range of 60 to 100 mol% and aromatic dicarboxylic acid component units other than terephthalic acid component units o1 to 40%.
Aromatic dicarboxylic acid component units consisting of a range of mol% (
a) and a linear aliphatic alkylene diamine component unit (b) having 6 to 18 carbon atoms, the intrinsic viscosity of the polyamide measured at 60°C in concentrated sulfuric acid [
η] must be in the range of 0.5 d, 17 g, preferably 0.5 to 2.8, particularly preferably 0.6 (/A 2.5 d, 17 g is within the range of

The polyamide (A) of the reinforced polyamide composition for molding of the present invention
Specific examples of the aromatic dicarboxylic acid component unit (a) constituting (a) include terephthalic acid, isophthalic acid, phthalic acid, 2-methylterephthalic acid, naphthalene dicarboxylic acid, and the like. The composition of the aromatic dicarboxylic acid component unit (a) may be a single terephthalic acid component unit, but it may be a mixture of a terephthalic acid component unit and the above-mentioned aromatic dicarboxylic acid component units other than the terephthalic acid component unit. It's okay. In either case, the aromatic dicarboxylic acid component unit (
The composition of a) is 60 to 100 terephthalic acid component units.
The aromatic dicarboxylic acid component units other than the terephthalic acid component units need to be in the range of 0 to 40 mol%. Furthermore, the composition of the aromatic dicarboxylic acid component unit (a) is such that when the linear aliphatic alkylene diamine component unit (b) constituting the polyamide is a straight chain aliphatic alkylene diamine having 6 carbon atoms, the terephthalic acid component unit is When the amount of aromatic dicarboxylic acid component units other than terephthalic acid component units is in the range of 60 to 85 mol% and in the range of 15 to 40 mol%, mechanical properties such as heat resistance properties such as heat distortion temperature, bending strength, and abrasion resistance This is particularly preferred since the properties and moldability are improved. In addition, linear aliphatic alkylene diamine component units (b
) is a straight-chain aliphatic alkylene diamine having 8 carbon atoms, it is in the range of 65 to 100 mol% of terephthalic acid component units and O to 35 mol% of aromatic dicarboxylic acid component units other than terephthalic acid component units. This is particularly preferred since heat resistance properties such as heat distortion temperature, mechanical properties such as bending strength and abrasion resistance, and moldability are improved.

In addition, when the linear aliphatic alkylene diamine component unit (b) constituting the polyamide is a linear aliphatic alkylene diamine having 10 to 18 carbon atoms, the terephthalic acid component unit is in the range of 75 to 100 mol% and the terephthalic acid component unit is It is particularly preferable that the amount of aromatic dicarboxylic acid component units other than 0 to 25 mol% improves heat resistance properties such as heat distortion temperature, mechanical properties such as bending strength and abrasion resistance, and moldability. . If the composition of the aromatic dicarboxylic acid component unit (a) is such that the terephthalic acid component unit is less than 60 mol% and the aromatic dicarboxylic acid component unit other than the terephthalic acid component unit is greater than 40 mol%, the heat distortion temperature etc. Mechanical properties such as heat resistance, tensile strength, and abrasion resistance, and chemical properties such as chemical resistance and water resistance become less important. The polyamide consists of (1q) aromatic dicarboxylic acid component units (a)
The aromatic dicarboxylic acid component units other than the terephthalic acid component units are preferably isophthalic acid component units or naphthalene dicarboxylic acid component units, and particularly preferably isophthalic acid component units. Further, the aromatic dicarboxylic acid component unit (a) constituting the polyamide is mainly composed of the terephthalic acid component unit and the aromatic dicarboxylic acid component unit other than the terephthalic acid component unit. In addition to the ingredients, a little 11
It may contain tribasic or higher polyhydric carboxylic acid component units such as trimellitic acid and pyromellitic acid (1).

Polyamide for the reinforced polyamide composition for molding of the present invention [
The straight chain aliphatic alkylene diamine component unit (b) constituting the paste is a straight chain aliphatic alkylene diamine having 6 to 18 carbon atoms, and specifically, 1,6-diamithexane, 1,7 - Diaminohbutane, 1.8-diaminooctane, 1.9-diaminononane, 1.10-diaminodecane, 1.11-diaminoundecane, 1.12-diaminododecane, etc., each containing 715.41'l of each component. be able to. Among these linear aliphatic alkylene diamine component units (+), 1.16-diaminodecane component unit, 1.18-diamino 3-cutane component unit m position,
It is preferably a 1.10-diaminodecane component unit, a 1.12-diaminododecane component unit, or a mixed component unit thereof, and particularly preferably a 1.10-diaminodecane component unit.

1: Urate 11 of the reinforced polyamide composition for coloring of the present invention, the aromatic dicarponic acid component unit (a) constituting the polyamide (A) is mainly composed of the terephthalic acid component at position 111, and Straight chain aliphatic alkylene diamine component unit (
1]) is 1,6-diamithexane, 1,8-diaminooctane, i,1o-diaminodecane or 1.12-
Compositions containing polyamides comprising diaminododecane are preferred, and compositions containing 1,1o-diaminodecane are particularly preferred.

The polyamide (A) blended into the reinforced polyamide composition for molding of the present invention can be produced by various conventionally known methods.For example, the polyamide
aul, W. Morgan, Interscie
nce puhlf 5IIGγS publication (1965)
, “Polymor Revj, ews 10.
Condensation P 01 Vmor
8% ByI 11”L; e r f a Ci
a l and S 01 u L ], 01
1Method, J and Von, T-], Hopf
f8. n(IA.

Krieger, Ma, kromol, Chemo
, 47.93-115 (as described in 1961J, a diacid halide of an aromatic dicarboxylic acid corresponding to the aromatic dinonorboxylic acid component unit (a,) of the constituent unit of the polyamide and the linear chain It can be produced by polycondensing a linear aliphatic alkylene diamine corresponding to the aliphatic alkylene diamine component unit (b) by a solution method, or it can be produced by polycondensing by an interfacial method. In addition, the linear aliphatic acid component unit corresponding to the aromatic dicarboxylic acid component unit (the aromatic dicarboxylic acid corresponding to aJ and the 1st position (1) in the linear aliphatic alkylene diamine component) of the constituent component units of the polyamide It can also be produced by heating a nylon salt with argylene diamine to produce an oligomer, followed by solid phase polymerization.A polyamide produced by any method can be used in the reinforced polyamide composition for molding of the present invention. You can also.

The filler [B], which is another component to be blended into the reinforced polyamide composition for molding of the present invention, may be organic or thread-free in various forms such as powder, plate, fiber, or cloth. It is a compound of silica, alumina, silica alumina, talc, diatomaceous, clay, kaolin, quartz, glass, mica, graphite, molybdenum disulfide, ceracola, red iron oxide, titanium dioxide, zinc oxide, aluminum, Powder-like and plate-like inorganic soft compounds such as copper and stainless steel, fibrous inorganic soft compounds such as glass fiber, carbon fiber, barley fiber, ceramic fiber, asbestos fiber, and stainless steel fiber. Secondary processed products such as these cross-shaped products, polyparaphenylene terephthalamide, polymetaphenylene terephthalamide, polyparaphenylene isophthalamide, polymetaphenylene isophthalamide, diamide, and combinations of nodiphenyl ether and prephthalic acid (isophthalic acid) Fully aromatic polyamides such as condensates, p(m)-aminoanther, condensates of aromatic acid, fully aromatic polyamides such as condensates of diaminodiphenyl ether and anhydride), limellitic acid or birjmellitic anhydride These secondary products include heterocyclic-containing compounds such as polyamideimide, wholly aromatic polyimide, polybenzimidal, and polyimidazophenanthroline, and powdered, plate-like, fibrous, or cross-like materials such as polytetrafluoroethylene. Examples include processed products, and two or more of these can also be used in combination. These fillers treated with silane couplers or titanium couplers can also be used in the same manner.

Among the fillers described above, it is preferable to use silica, silica alumina, alumina, titanium dioxide, graphite, molybdenum disulfide, and polytetrafluoroethylene as the powder filler, particularly graphite, molybdenum disulfide, and polytetrafluoroethylene. It is preferable to use the composition because it improves the wear resistance such as the dynamic friction coefficient, taper wear, and limit pv value of the molded article obtained from the composition. The average particle size of such fillers is usually [
:l, 1m7z to 2007), especially 1n
yt I,' (If it is within the range of 100 horns, the above 1
[1jkon; - It is preferable because the corrosion resistance is significantly improved. The blending ratio of the filler is the polyamide IQ O-
iI+', I+ needs to be in the range of 200 parts by weight exceeding O, preferably in the range of 100:1lilit parts exceeding 0, particularly preferably 0
．． It ranges from 5 to 50 parts by weight.

In addition, among the optical jfI agents, organic fibrous fillers include -CG polyparaphenylene terephthalamide fiber, polyparaphenylene terephthalamide TA fiber, polyparaphenylene isophthalamide mekufu E, and ren isofucluamide. When a wholly aromatic polynomide fiber such as a fiber obtained from a condensation product of diaminodiphenyl ether and terephthalic acid or isophthalic acid is used, the composition obtains Jt':
14- tensile strength, isot impact strength, etc.
lIJ heat ((J1 crab, etc.) is preferable because it becomes favorable to J knee = j.Furthermore, as a fibrous filler for inorganic yarns, among the above-mentioned fillers, carbon fibers: Alternatively, when boron fibers are used, the mechanical properties such as tensile strength, flexural strength, and flexural modulus of the molded product obtained from the composition, heat resistance properties such as heat distortion temperature, chemical and physical properties such as water resistance, etc. "Improve": This is preferable because it improves the quality of the filler.The average length of the organic or inorganic fibrous filler is usually in the range of 0.1 to 20 mm, particularly in the range of 1 to 10 mm.
If it is within the range of Therefore, it is preferable.

The blending ratio of the fibrous filler in the organic or 4'A-free yarn is greater than 0 and 200 to iooii parts of the polyamide.
It is necessary to range from 5 to 180 parts by weight, particularly preferably from 5 to 1 parts by weight.
The range is 50 parts by weight.

When the blending ratio of the powdered or fibrous filler exceeds 200 parts by weight based on 100 parts of the polyamide, the moldability of the composition and the malleability of the molded product obtained from the composition are significantly reduced. I come to do it.

The reinforced polyamide composition for molding of the present invention has the polyamide (Al and L and the filler CB) as essential components, and may be a composition consisting only of the image components, The composition may contain other components in addition to the two essential components. Examples of components other than the above-mentioned essential components that may be blended into the reinforced polyamide composition for molding of the present invention as needed include conventionally known stabilizers, plasticizers, mold release agents, lubricants, and the like.

Examples of the method for preparing the reinforced polyamide composition for molding of the present invention include a method in which a filler is blended while maintaining the polyamide of each of the constituent components in a molten state. Specifically, a method of melt-kneading and blending can be exemplified by a method of kneading and blending using an extruder, a kneader, or the like.

The moldable reinforced polyamide composition of the present invention can be molded by conventional melt molding, such as compression molding, injection molding, or extrusion molding.

Next, the reinforced polyamide composition for molding of the present invention will be specifically explained with reference to Examples. Reference Examples 1 to 5 show the synthesis methods of polyamides used in Examples and Comparative Examples. Furthermore, a method for preparing a reinforced resin composition, a method for preparing a test piece from the reinforced resin composition, and a method for evaluating each performance were also shown.

The following abbreviations used in Tables 1 and 3 below indicate the following compounds, respectively.

TA: Terephthalic acid TA: Isophthalic acid C6DA: 1,6-diaminohexane C3DA
:1.8-diaminohexane C1oDA: 1,10-
Diaminodecane (1) Polyamide production reference example 1 116 g (1M) of 1.6-diaminohexane, 220 g (2.1 M) of sodium carbonate, 20 g of sodium lauryl sulfate and 5e of ion-exchanged water were heated using a stirring bar, a thermometer, and reflux cooling. Pour into a fourth 106 flask equipped with a container and add N2
The mixture was stirred at 5°C under an atmosphere, and a solution of 152 g (0.75 M) of terephthaloyl chloride and 51 g (0.25 M) of inphthaloyl chloride in chloroform (41) was added dropwise over 10 minutes. After the dropwise addition, the reaction was carried out at 5°C for 15 minutes, and then the reaction mixture was poured into 40 g of acetone, and the precipitated polymer was collected by suction filtration using a glass filter. After washing the polymer with hot water and then acetone, it was dried in a vacuum oven at 100° C.% 100 mm 1 g to obtain 234 g (95%) of the polymer.

Table 1 shows the mole %, [η], and melting point of the terephthalic acid component units in the polymer.

Reference Examples 2 to 3 The terephthalic acid component units in the dicarboxylic acid base of dicarboxylic acid r1 were prepared according to the method described in Reference Example 1, except that the amounts of terephthaloyl chloride and isofucloyl chloride used in Reference Example 1 were changed as shown in Table 1. Polymers with different contents were obtained. The results are shown in Table 1 = 320 Reference Example 4 1,8-diaminooctane 81e; (0.56M), sodium hydroxide 47g (1.18M), sodium lauryl sulfate 116, chloroform 2.251 and ion exchange water 5. 61 was charged into four Lof flasks equipped with a stirring bar, a thermometer, and a reflux condenser, and stirred at 1[1'Q] under N2 atmosphere.
5M) A solution of 23g (0.11M) of isophthaloyl chloride in chloroform (3e) was added dropwise over 7 minutes, then at 10°C.
The reaction was carried out for 20 minutes. The reaction mixture was poured into an acetone filter 04, and the precipitated polymer was collected by suction filtration using a glass filter. After washing the polymer with acetone, hot water and then acetone, it was incubated at 100°C in an open vacuum.
144g after drying for 1 day under 100mmHg (7) conditions
(93%) of the polymer was obtained. The TA component unit in the dicarboxylic acid component unit of the polymer was 78 mol%, (η:)(c
onc-rq2so4, roO'C) is 0.82 de
/E, melting point is 310°C''Caratc.

Reference Example 5 232 g (1,4ou) of terephthalic acid, 241e+ (1,4M) of 1,10-diaminodecane, and 101 g of ion-exchanged water were charged into an ion reactor equipped with a stirring bar, a thermometer, and a reflux condenser, and N2 The clear solution after the reaction was reacted for 1 hour at 95 to 100'C in an atmosphere, and the precipitated nylon 4N was collected by suction filtration and heated at 100°C (JQ
After drying with m+nHtl, 450 g (95%) of nylon salt of terephthalic acid-1''o-diaminodecane was obtained.

450 g (1.33 M) of this nylon salt was charged into a reactor 1e, and after the pressure was reduced to 1 mm 1 lp, a N2 gas stream was introduced.
The water produced by the 1.51 reaction at 310'C was expelled from the system, and polyamide 590 (J, C97%, (+7) = 0) consisting of terephthalic acid and 1,10-diaminodecane was removed.
-72 a#/g cOna-H2SO, 1 in l. ']
D"C) was obtained. The polyamide was crushed by a crusher (2 mesh passes), and 100"C11m
295'Cz after drying for 12 hours under mHB (7) conditions
Solid phase polymerization was carried out for 12 hours under O-7 mmHg [
η〕(cone, )H2SO, medium, 30℃) 1.2
5 d (J/g of terephthalic acid component tn position and 1,10-
370 g of polyamide consisting of diaminodecane component units (
96%) was 4'J. The melting point was 316°C.

[1] Preparation of reinforced resin composition The polyamide synthesized by the interfacial polymerization method was crushed with a crusher (32 mesh passes) and heated at 100°C, 11 mm
After drying for 12br under the conditions of g, it was used to prepare a reinforced resin composition. In addition, the solid phase polymerized product was used as it was. To prepare a reinforced resin composition, a predetermined amount of sufficiently dried filler and a predetermined amount of polyamide are first dry blended under a nitrogen atmosphere. This mixture was passed through a 20 mm vented extruder (screw L
/D=28) under a nitrogen atmosphere at a screw rotation speed of 30 rpm at a predetermined temperature and pressure,
Got the strand. Cut this strand to a length of 0.8~IC
A filler-reinforced resin composition was prepared using In.

[111] Preparation of test pieces and evaluation method of each performance Filler-reinforced resin composition was heated to 100°Cs in a 1mm 1g atmosphere at a pressure of 1ookv theory 2 at a pressure of y -F, (to); a temperature 20"C higher than the point. After hot-pressing at 20"C, press it to 2mm.
mm l! J's LI:, Ki Seisei colored cedar board was made. After cutting these molded plates to the dimensions of each test piece listed in Table 2, the temperature was 23°C, 411*4 humidity) 965% (7).
After leaving it for 96 hours in the Z range, a test was carried out.

Example 1 A glass fiber-reinforced polyamide composition consisting of 100 parts by weight of the polyamide described in Reference Example 1 and 43 parts by weight of glass fibers (manufactured by 11 Tobo KK, chip strand as 6PE-231) with an average length of /) mm was shown. It was produced under the extrusion conditions described in 5. Table 3 shows the performance of test pieces prepared using this composition.

Examples 2 to 4 In Example 1, the polyamide described in Table 6 was used instead of the polyamide described in Reference Example 1, and the glass fiber reinforced polyamide composition was produced under the extrusion conditions described in Table 3. A glass fiber reinforced polyamide was produced by the method described in Example 1.

Table 6 shows the performance of test pieces prepared using these compositions.

Example 5 Glass fibers were made by the method described in Example 4, except that glass fibers with an average length of 6 mm (Nitto Boseki KK Soko, Chip Strand C83PE-261) were used instead of the glass fibers with a length of 6 mm in Example 4. Fiber-reinforced polyamide, l'l [
An acid was produced. Table 6 shows the performance of test pieces prepared using this composition.

Example 6.7 A glass fiber-reinforced polyamide composition was prepared by the method described in Example 4, except that 43 parts by weight of glass fibers were used in place of the glass fibers listed in Table 6. Table 6 shows the performance of test pieces prepared using these compositions.

Examples 8 to 11 100 parts by weight of the polyamide listed in Table 3 and HT carbon fiber (manufactured by Toshi KK, TOO
No. 8A, average length of 3 mm or 6 mm) was prepared under the extrusion conditions shown in Table 6. Table 6 shows the performance of test pieces made using these compositions.

Example 12 Polyparaphenylene terephthalamide fibers (manufactured by Du Pont, Kevlar ■49, average length 3 Inm) were used instead of glass fibers in Example 6, and the process was as described in Example B, and polyballasts were fabricated by the Buko method. A phenylene terephthalamide fiber reinforced polyamide composition was prepared. Table 6 shows the performance of test pieces prepared using this composition.

Comparative Example 1 A strand and a test piece were produced in the same manner as in Example 4, except that glass fiber was not used. The results are shown in Table 3.

Comparative Example 2 100 parts by weight of the polyamide described in Reference Example 6, average length 6
A glass fiber-reinforced polyamide composition consisting of 43 parts by weight of glass fibers (manufactured by Nittobo KK, chip strand C86PE-231) having a diameter of 1.5 mm was prepared under the extrusion conditions shown in Table 6. Table 5 shows the sex of test pieces prepared using this composition.
It was shown to.

Comparative Example 6 Polyamide Dynamite (Trogamide T), manufactured by Nobel Co., Ltd., consisting of 2,2,4-1-limethylhexamethylenediamine component units and terephthalic acid component units, dried for 12 hours under 100'Cs 1 mmHg condition, was placed in a nitrogen atmosphere. 2nd year middle school
A test piece was prepared by hot pressing at 75°C and a pressure of 1100 kg/Cjn2, and then by cold pressing at 20'C. The results are shown in Table 6.

Comparative Example 4 Glass fiber reinforced polyphenylene sulfide (Philip Co., Ltd., dried for 12 hours at 100°C and lmmHg)
A test piece was prepared by hot pressing Tlyton R-4 (a product containing 140% glass fiber M) at a pressure of 330''Cz 100 kg/cm2, and then cooling it at 20''C. The results are shown in Table 3. Ratio Example 5 1 f) Glass fiber reinforced polyacetal (manufactured by Polyplastics, G1-Lacon GC-25, Glass Fiber 25) dried for 12 hours at 0°C and i ++ BnHg.
% compounded product in a nitrogen atmosphere at 200°C - % 100 k
Hot press at a pressure of Q/cm2, then cold press at 20°C Test pieces Examples 171 to 1-3

Claims (1)

[Claims] (1J (A) Prephthalic acid component unit 6°0 to 1
o. Aromatic dicarboxylic acid component unit (a) consisting of a range of mol% and a range of 0 to 40 mol% of aromatic dicarboxylic acid component units other than terephthalic acid component units, and a carbon number of 6
to 18 linear aliphatic alkylene diamine component units (
b) solid and measured at 30'C in concentrated sulfuric acid [η]
is in the range of 0.5 to 3.0 dJll'/g, and CB) more than 0 to 2 parts per 100 parts by weight of the polyamide.
A moldable polyamide composition comprising a filler in the range of 0.00 parts by weight. (2) The polyamide composition for molding according to claim (1), wherein the aromatic dicarboxylic acid component unit other than terephthalic acid constituting the polyamide is an isophthalic acid component unit or a naphthalene dicarboxylic acid component unit. (3) The linear aliphatic alkylene diamine component Q1 position (b) constituting the polyamide is a 1,6-diaminodecane component unit, 1,8-diaminodecane component unit 1, Hll-
The moldable polyamide composition according to claim g(1), which is a diaminodecane component unit or a 1,12-Schiff'minododecane component unit. (4) The polyamide according to claim (1) is a polyamide whose intrinsic viscosity [η] measured at 0°C in concentrated sulfuric acid is in the range of 0.6 to 2.5 dβ/g. Polyamide composition for molding. (5) Full! 6E agent [13] is a powder filler having an average particle diameter of Q, 1 mμ to 2 Orl II, poly-γ for molding according to claims (1) to (4).
Mido composition. (6) The polyamide composition for molding according to claim (5), wherein (o) is silica, silica alumina, alumina, graphite, titanium dioxide, molybdenum disulfide, or polytetrafluoroethylene. . (7) The average fiber length of the filler [B] is 0.1 to 2
Claim No. (1) which is a 3 mm fibrous filler
The polyamide composition for molding according to Items 1 to 4. (8) The polyamide composition for molding according to claim (7), wherein the filler CB) is wholly aromatic polyamide fiber, glass fiber, carbon fiber, or boron fiber. (9) The blending ratio of filler CB) is 100% of the polyamide.
The polyamide composition for molding according to claims (1) to (8), wherein the amount is in the range of 0.5 to 150 parts by weight.