JPS63265947A - Halogenated polyester resin composition and wire - Google Patents

Abstract

PURPOSE:To obtain the title resin composition excellent in flame retardancy, etc., and suitable as a wire coating material or the like, by adding a bislactam compound to a flame-retarding aromatic polyester copolymer obtained by using a halogenated esterifiable compound as part of the material. CONSTITUTION:An acid component based on an aromatic dicarboxylic acid (esterifiable derivative), e.g., terephthalic acid, is polycondensed with a glycol component based on an aliphatic glycol (esterifiable derivative), e.g., ethylene glycol, and a halogenated esterifiable compound (e.g., tetrabromobisphenol A) to produce a flame-retarding aromatic polyester copolymer of a halogen content of 0.5-30wt.%. This copolymer is mixed with 0.1-10wt.%, based on the total composition, bisalctam compound (e.g., isophthaloyl bis-epsilon-caprolactam) to obtain the purpose halogenated polyester resin composition.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a coating material for electric wires, and more specifically, the present invention relates to a coating material for electric wires, and more specifically, the flexibility of a halogen-containing flame-retardant aromatic polyester copolymer blended with a bislactam compound The present invention relates to a polyester resin composition that does not disappear due to heat and has excellent flame retardancy, and to an electric wire coated with the same.

[Conventional technology and its problems]

Conventionally, rubber, polyvinyl chloride, polyethylene, polypropylene, nylon, etc. have been used as wire covering materials, and polyvinyl chloride is particularly used from the viewpoint of flame retardancy and mechanical strength. In recent years, as the environment in which these coating materials are used has become more severe, the properties required of the coating materials have increased, such as excellent heat resistance and electrical properties, as well as flame retardancy and good thin-wall processability to save space. is also becoming more sophisticated.

Although fluororesins, crosslinked polyethylene, and the like meet these demands, they are not satisfactory because they all have poor thin-wall processability, and fluororesins are expensive.

Polyethylene terephthalate and polybutylene terephthalate are attracting attention because they have good thin-wall processability, as well as excellent mechanical strength (flexibility, abrasion resistance, etc.), heat resistance, and electrical properties. In addition, since these polyalkylene terephthalates are crystalline resins, their flexibility is extremely reduced due to heat treatment after coating and heating conditions during use, resulting in poor impact resistance. etc., the mechanical strength decreases. Therefore, it is necessary to avoid using it near a heat source or in an environment where there is a risk of heat accumulation, and there are some restrictions on its use.

In order to overcome these drawbacks, attempts have been made to add elastomers or non-grade polymers to reduce crystallinity as much as possible, and attempts have been made to partially crosslink to maintain stability in mechanical strength. is being done.

Although a slight improvement effect is observed in the former example, since the crystalline resin matrix remains as it is, it cannot withstand long-term thermal history, and the decrease in the ratio of crystalline resin causes problems such as friction and wear. It has the disadvantage of reducing the mechanical properties of

In the latter case, cross-linking has a slight effect of improving the stability of mechanical properties, but it comes at the cost of flexibility, and since it involves a cross-linking reaction, control is complex and processability is extremely poor. There is a drawback that it decreases.

[Means for solving problems]

In view of the above problems, the present inventors conducted extensive research to obtain a coating material for electric wires that does not lose its flexibility due to heat history, is flame retardant, and has excellent mechanical and electrical properties. The present inventors have discovered that the above coating material can be obtained by adding a specific compound to a halogen-containing flame-retardant aromatic copolyester, and have completed the present invention.

That is, the present invention provides: (8) A mainly aromatic dicarboxylic acid or its ester-forming derivative (B) A mainly aliphatic glycol or its ester-forming derivative (C) A halogen-containing ester-forming compound by polycondensation reaction. The resulting halogen content is 0.
Add a bislactam compound to 5-30% by weight of a flame-retardant aromatic polyester copolymer at a rate of 0.1-1% per total collapse of the composition.
The present invention relates to a halogen-containing polyester resin composition characterized by containing 0% by weight, and to an electric wire coated with the same.

Various properties such as flame retardancy, friction and wear resistance, flexibility (flexibility, high elongation) required for wire coating material applications such as the present invention,
It is extremely difficult to simultaneously satisfy the characteristics of maintaining the original high elongation rate and flexibility even in a heated atmosphere for a long period of time without losing flexibility due to thermal history. The combination of a certain amount of copolyester and bislactam compound satisfies the various properties required for wire coating materials.In particular, the addition of lactam prevents loss of flexibility due to thermal history, and provides stability under a heated atmosphere for a long period of time. It is surprising that the

The polyester copolymer composition used in the present invention will be specifically described below.

First, the components constituting the aromatic polyester copolymer which is the base of the composition of the present invention will be explained. Component (A) mainly consists of an aromatic dicarboxylic acid or an ester-forming derivative thereof. Representative substances include terephthalic acid or its derivatives, and in some cases, dicarboxylic acids such as isophthalic acid, naphthalenecarboxylic acid, naphthalenedicarboxylic acid or derivatives thereof, adipic acid, sebacic acid, trimellitic acid. , fatty acids such as succinic acid or ester-forming derivatives thereof, aromatic hydroxycarboxylic acids such as hydroxybenzoic acid, hydroxynaphthoic acid, or ester-forming derivatives thereof.

Next, for constituting the polyester copolymer of the present invention (
Component B) mainly consists of aliphatic diols or ester-forming derivatives thereof.

Typical substances include C2-C8 low molecular weight glycols, such as ethylene glycol, 1°4-butylene glycol, 1,3-propanediol/be-1,4-butynediol, 1,1li-hexanediol, 1,8
-Diols such as octanediol and the like can be mentioned. In addition to these low molecular weight glycols, high molecular weight glycols such as polyalkylene oxide glycols, such as polyethylene oxide glycols, polybutylene oxide glycols, etc. can be used in combination. The combined use of such a high molecular weight glycol is extremely effective in improving the elongation and imparting bending resistance to the aromatic polyester that is the wire coating material of the present invention.

In addition, as component (B), aromatic alcohols such as bisphenol A, 4,4'-dihydroxybiphenyl, phenyl 1゜4-dihydroxyphosphinate,
2 mole ethylene oxide adduct of bisphenol A,
It is also possible to use alkylene oxide adducts such as a propylene oxide 2 mole adduct of bisphenol A, alconobeglycerin, polyhydroxy compounds such as pentaerythritol, or ester-forming derivatives thereof.

Next, the polyester copolymer which is the composition of the present invention has a component (
C) is an aromatic polyester copolymer in which a halogen is bonded in its molecule by using a halogen-containing compound capable of forming an ester as a monomer. Examples of halogen-containing compounds used for this purpose include the following. Further, as the halogen, bromine is particularly preferable.

(X)z　　　(X).

(x)l(X), (X)I! (%j).

(X)l H2X CB) HD-C) I2-C-CL -OHH2X where CH3 R3, R4; -CH, -, -C-, -0-, -3-, -
3O2-CH3 R5, R6; -C2H4-, -C3H6-+ -(C2
H40). -1- (oral aHsO). -X; Halogen β9m: 1 to 4 ni Represents an integer of 1 or more.

Preferred halogen compounds to be incorporated as copolymer compounds are those of general formulas (1) to (7). When using bromine as the halogen, examples of general formula (1) include tetrabromobisphenol A1 tetrabromobisphenolsulfone, (2) an example of tetrabromobisphenol F, and (3) an example of tetrabromobisphenol A.
As an example of (4), 2 moles of ethylene oxide adduct of , 2 moles of propylene oxide adduct of tetrabromobisphenol A, 2 moles of ethylene oxide adduct of tetrabromobisphenol sulfone, 2 moles of propylene oxide adduct of tetrabromobisphenol sulfone Tetrabromohydroquinone, an example of (5) is a 2-mole adduct of tetrabromohydroquinone with ethylene oxide, an example of (6) is tetrabromoterephthalic acid, (
An example of 7) is polycarbonate to tetrabromobisphenol.

The molecular weight of the halogen compound monomer incorporated as the copolymer composition is preferably 390 or more. If the molecular weight is too small, it will not contribute to improving the oxygen index, which is an indicator of flame retardancy, so it is preferable that the molecule contains at least one aromatic ring.

These halogen compounds have a content of halogen in the produced copolyester of 0.5 to 30% by weight, preferably 2 to 30% by weight.
Add so that the amount becomes 20% by weight.

If 0.5% by weight is not swirled, sufficient flame retardancy cannot be obtained, and 3
If it exceeds 0% by weight, mechanical properties will deteriorate, which is not preferable.

When the ester-forming functional group of the halogen compound of component (C) is alcohol-based, the proportion of the monomer for preparing the polyester copolymer used in the present invention is 10% of component (A).
It is preferable that the amount of component B) + (C) be 90 to 200 mol, preferably 95 to 150 mol, relative to 0 mol. In addition, when the ester-forming functional group of the halogen compound of component (C) is a carboxylic acid type, the amount of component B) is 90 to 200 mol, preferably 95 to 200 mol, per 100 mol of component (A) + (C). The amount is preferably 150 moles.

If a coating material with a high oxygen index is required depending on the usage conditions, adjust the content of component (C) appropriately to control the halogen content in the copolymer and satisfy the desired oxygen index. can get things.

The copolymer used in the present invention can be polymerized by known methods such as melt polymerization, interfacial polymerization, and solid phase polymerization, and those having an intrinsic viscosity of about 0.5 to 3.0 can be used.

The composition of the present invention is characterized in that a specific amount of the following bislactam compound is blended into the halogen-containing polyester copolymer as described above.

The bislactam compound is represented by the following general formula (a).

Mouth MouthIf;I (R represents an organic group of 2<B, in the formula, the hydrogen atom may be substituted with an alkyl group or an aryl group.n is 2
It is an integer of ~8. ) In formula (a'), R is preferably a compound represented by the following formula (b) or (c).

R: -C-R, -C-(b):l::R-C-NH-R2-H-C-(c)il:1 (R1 and R2 represent divalent organic groups.) This Inside, R,...
R2 is preferably an organic group containing at least one aromatic ring.

The formula (b) type represents a dicarboxylic acid residue, and ordinary dicarboxylic acids can be used. Specific examples include terephthalic acid, isophthalic acid, naphthalene dicarboxylic acid, adipic acid, sebacic acid, trimellitic acid, and succinic acid. Among these, preferred examples are terephthalic acid, isophthalic acid,
Examples include naphthalene dicarboxylic acid.

These compounds can be produced by conventional methods, and one easy example is a method in which each acid chloride compound is reacted with a lactam.

The formula (c) type shows a urinary S bond and can be introduced by various methods, but one example of an easy method is a method in which inocyanate and lactams are reacted, and a common diisocyanate can be used. Specific examples include toluene diisocyanate, methylene diphenyl diisocyanate, xylylene diisocyanate, naphthylene diisonoanate, 3,
3'-dimethyldiphenyl-4,4''-diisocyanate, hexamethylene diisocyanate, inphorone diisocyanate, hydrogenated methylene biphenyl diisocyanate, hydrogenated toluene diisocyanate, lysine diisocyanate , bis(2-incyanatoethyl) fumarate, etc. Among these, preferred examples are methylene diphenyl diisocyanate, xylylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, and the like.

Lactams: Compounds having 2 to 8 methylenes are preferred, and pyrrolidone, piperidone, and caprolactam having 3 to 5 methylenes are particularly preferred.

In addition, the bislactam compound represented by formula (a) also contains an adduct that is reacted with a compound containing reactive active hydrogen such as carboxylic acid or alconopethiol before blending, and at least two By reacting with the above-mentioned compounds having active hydrogen groups, low-molecular to high-molecular compounds can be easily produced as terminal lactam-type adducts.

The amount of the bislactam compound added is 0.0% based on the total amount of the composition.
The amount is 1 to 10% by weight, preferably 0.1 to 5% by weight. If the amount is too small, no effect will be achieved, and if it is too large, problems such as extremely high viscosity and increased decomposition products will occur.

The bislactam compound may be added when producing the aromatic P polyester, or may be added and mixed during pellet production.

The composition used for Honhatko shows excellent performance even without the use of additives, but in order to further improve its performance,
Stabilizers such as antioxidants and ultraviolet absorbers, antistatic agents, flame retardants, flame retardant aids, coloring agents such as dyes and pigments, and lubricants and lubricants to improve fluidity and mold release properties as necessary. Agents, crystallization promoters (nucleating agents), inorganic substances, etc. can be used. In particular, when an antioxidant is added in combination with a lactam, the improvement effect can be further enhanced.

Stabilizers include hindered phenol, amine,
Compounds such as phosphorus compounds can be used.

An example of a hindered phenol compound is 2,2
'-Methylene bis(4-methyl-6-t-butylphenol), hexamethylene glycol bisph 3,5-di-
t-butyl-4-hydroxyhydrocinnamate), tetrakis[methylene (3,5-di-t-butyl-4-hydroxyhydrocinnamate)]methane, triethylene glycol bis-3-(3-t-butyl- 4-Hydroxy-5-methylphenyl)propionate, 1.3.5
-t-dimethyl-2,4,6-tris(3,5-sheet
-butyl-4-hydroxybenzyl)benzene, n-octadenyl-3-(4'-hydroxy/-3", 5'-dibutylphenyl)propionate, 4,4"-
methylenebis(2,6-di-butylphenol),
4.4'-butylidenebis(6-t-butyl-3-methylphenol), 2.2'-thiodiethylbisC3-1
:3,5-di-t-butyl-4-human,roxyphenyl)propionate, distearyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, 2-t-
At least one kind or two or more kinds of butyl-6-(3-t-butyl-5-methyl-2-hydroxybenzyl)-4-methylphenylacrylate can be used.

Among these, hexamethylene glycol bis(3,
5-di-l-monobutyl-4-hydroxyhydrocinnamate), tetrakis [methylene (3,5-di-t-butyl-4-hydroxyhydrocinnamate)] methane,
Triethylene glycol bis-3-(3-t-butyl-
4-Hydroxy-5-methylphenyl)propionate is a particularly preferred material.

An example of an amine compound is N-phenyl-N"-
Isopropyl-p-phenylenediamine, N,N'-diphenyl-p-phenylenediamine, 4,4'-bis(
These include 4-α,α-dimethylbenzyl)diphenylamine, a condensation product of diphenylamine and acetone, N-phenylnaphthylamine, N,N″-di-β-naphthylphenylenediamine, and the like.

Examples of phosphorus-based compounds include phosphonite compounds represented by the following general formula (9), where R7+ R8+ R9 and R,0 are alkyl groups having 1 to 25 carbon atoms, substituted alkyl groups, and aryl groups. or a substituted aryl group, which may be the same or different. Examples of these include methyl group,
Examples include ethyl group, butyl group, octyl group, decyl group, lauryl group, tridecyl group, stearyl group, phenyl group, and alkyl- and/or alkoxy-substituted phenyl group. Further, R and I represent an alkylene group, a substituted alkylene group, an arylene group, or a substituted arylene group having 4 to 33 carbon atoms, and examples thereof include a butylene group, an octylene group,
Examples include phenylene, naphthylene group, diphenylene group, a group represented by the following formula (wherein X is an oxy group, a sulfonyl group, a carbonyl group, a methylene group, an ethylidene group, a butylidene group, an isopropylene group, a diazo group, etc.). Particularly preferred phosphonite compounds include tetrakis(2,
(4-di-t-butylphenyl)-4,4'-diphenylenephosphonite.

The amount added is 0.01 to 5% by weight based on the total amount of the composition,
Preferably it is 0.1 to 3%.

In addition, as flame retardant aids, antimony compounds such as antimony trioxide and antimony halides, metal compounds containing zinc and bismuth, clay silicates such as magnesium hydroxide, and asbestos can be used.

In addition, examples of inorganic materials include glass fiber, ceramic fiber,
General inorganic fibers such as boron fibers, potassium titanate fibers, asbestos, calcium carbonate, highly dispersed silicates, alumina, aluminum hydroxide, curcum, clay, mica, glass flakes, glass powder, glass peas, quartz powder, silica sand, It includes powdery materials such as wollastonite, carbon black, barium sulfate, calcined gypsum, silicon carbide, alumina, boron nitride, and silicon nitride, plate-shaped inorganic compounds, and whiskers.

These inorganic fillers can be used alone or in combination of two or more.

Furthermore, one or more organic polymeric substances may be auxiliary mixed for the purpose of improving melt extrusion coating properties, lubricity, flexibility, and the like. - Examples include other polyester polyamides, polyolefins and copolymers thereof, low molecular weight polyethylene, polycarbonate, polyurethane, butyl rubber, rubbery polymeric substances such as ABS, and multiphase copolymers of polyacrylate resins. , thermoplastic segmented copolyesters (these copolymers include graft copolymers), and the like.

The electric wire of the present invention is manufactured by a known method. Usually, the covering material is applied to the running conductor by melt extrusion. There are two cases: the running direction of the conductor and the extrusion direction of the covering material are on the same line, and the case where a crosshead having a certain angle is used, and the electric wire of the present invention can be manufactured in either case.

As the extruder, it is preferable to use a screw type extruder which allows easy control of the flow rate of the coating material.

The uneven thickness of the covering material is detected using known methods such as X-rays and ultrasonic waves.

The degree of eccentricity due to uneven thickness of the covering material is expressed by the concentricity ee,
The higher the ec, the better, but it is preferably 65% or more, more preferably 70% or more.

ffiaM emln : Minimum coating cross-sectional thickness emax : Maximum coating cross-section thickness Control of thickness deviation is detected by a thickness deviation detector, and the clearance between the gou and the conductor is adjusted automatically or manually at the goo center part of the screw type extruder. This method is implemented by controlling and adjusting the flow rate of the coating material together with the pressure and temperature.

Using a non-eccentric head for the die is also effective in reducing uneven thickness.

During production, the coating may be coated and shaped and then passed through a heating zone, if desired, in order to further increase the mechanical strength of the coating. The temperature of the heating zone is below the melting point of the coating material and above the glass transition point.

〔Effect of the invention〕

The halogen-containing resin composition of the present invention significantly improves the deterioration of physical properties due to thermal history compared to conventional polyester coating materials, and therefore produces the following excellent effects.

(1) The coating material has high flammability and its physical properties do not deteriorate much due to thermal history, so it can be used around heat sources, engines of transportation equipment, etc.
Effective for wires around heat-generating parts of electrical products.

(2) The coating material can be made thinner without impairing its mechanical and electrical properties, and is highly flexible, so the effective use of limited space is dramatically increased. It is particularly effective for use as electric wires for space rockets, aircraft, transportation equipment such as automobiles, electrical products, computers, information-related equipment, etc., which have a high degree of information accumulation and have limited space capacity.

(3) Because the halogen compound is incorporated into the copolymer, this coating material does not ooze out at high temperatures, which is the case with the addition of flame retardants. Since blocking can be prevented, coating costs can be reduced.

Because it has the above-mentioned characteristics, the coating material obtained by the present invention can be used not only for the above-mentioned examples but also for transportation equipment, electrical/electronic/information equipment,
It is suitable not only for use in electric wires in fields such as various machines, but also for various equipment materials, parts, etc. that preferably have these physical properties.

EXAMPLES The present invention will be explained below with reference to Examples. Copolymers P, Q and R used in the Examples were prepared as follows.

Production Example 1 (Preparation of Copolymer P) 970 parts by weight of dimethyl terephthalate, 513 parts by weight of 1,4-butanediol, 158 parts by weight of 2 moles of ethylene oxide adduct of tetrabromobisphenol A, 0.7 parts by weight of tetrabutoxytitanium. The mixture was charged into a reactor equipped with a stirrer, a nitrogen inlet tube, and a distillation tube, and stirred at 160° C. for 30 minutes under a nitrogen stream. Gradually raise the temperature 2
The mixture was heated and stirred from 00°C to 270°C for 2 hours. Next, after stopping the introduction of nitrogen, the pressure inside the reactor was gradually reduced to 30
After a few minutes, the pressure was lowered to Q, 3 mmHg, and the mixture was stirred at this pressure for 3 hours. The obtained polymer exhibited an intrinsic viscosity of 1.0,
The bromine content was 6.5% by weight.

Production Example 2 (Preparation of Copolymer Q) 9 parts by weight of dimethyl terexcrate, 513 parts by weight of 1,4-butanediol, 171 parts by weight of 2 moles of propylene oxide adduct of tetrabromobisphenol sulfone
part, natraphthoxytitanium 0. Mix the parts by weight with a stirrer,
The mixture was charged into a reactor equipped with a nitrogen inlet tube and a distillation tube, and stirred at 160° C. for 30 minutes under a nitrogen stream. The temperature was gradually raised from 200°C to 270°C, and the mixture was stirred for 2 hours. Next, after stopping the introduction of nitrogen, the pressure in the reactor was gradually reduced, and after 30 minutes, the pressure was lowered to Q, 3 mmHg, and the mixture was stirred at this pressure at 270°C for 3 hours. The obtained polymer exhibited an intrinsic viscosity of 1.1 and a bromine content of 6.3% by weight.

Production Example 3 (Preparation of Copolymer R) 900 parts by weight of dimethyl terephthalate, 450 parts by weight of 1,4-butanediol, 50 parts by weight of polybutylene oxide glycol having an average molecular weight of 400, 158 parts by weight of 2 mole ethylene oxide adduct of tetrabromobisphenol A. 1, and 0.7 parts by weight of tetrabutoxytitanium were charged into a reactor equipped with a stirrer, a nitrogen inlet tube, and a distillation tube, and stirred at 180° C. for 30 minutes under a nitrogen stream. The temperature was gradually raised from 200°C to 270°C, and the mixture was stirred for 3 hours.

Next, after stopping the introduction of nitrogen, the pressure in the reactor was gradually reduced, and after 15 minutes, the pressure was lowered to 0.5 mmHg, and the mixture was stirred at this pressure for 6 hours. The obtained polymer has an intrinsic viscosity of 1.0
The bromine content was 6.5% by weight.

Example 1 Inphthaloyl bis-ε was added to 98.5 parts by weight of copolymer P.
- Powders were mixed with 1.5 parts by weight of caprolactam (hereinafter abbreviated as IPBC), and pellets were obtained by uniformly melting and mixing using an ordinary extruder. Test pieces were prepared from the obtained pellets using an injection molding machine in a conventional manner, and their physical properties were evaluated.

Each physical property was measured by the following method.

Tensile strength and elongation (%) were measured according to ASTM 0638. Dielectric breakdown was measured using the ASTM D 149 short time method, and dielectric constant was measured at 01501 kHz. Further, the flame retardance was determined by a test method based on UL-94V, and those that disappeared within 30 seconds were evaluated as ○, and those that did not disappear were evaluated as ×.

The oxygen index was measured according to JIS K7201.

The surface shape was observed after 72 hours at 120℃.
Items with abnormalities such as bleeding or swelling are ×, items without are ○
And so.

In addition, the tensile test piece was stored in a constant temperature bath at 120°C, and
The elongation rate and elongation retention rate after 0 hours were measured in the same manner.

Furthermore, 0.3 m of copper circular compression stranded wire with an outer diameter of approximately 1.9 mm
Electric wires were made by coating them with a resin composition to a thickness of m, stored in a constant temperature bath at 120°C, and after 500 hours, the wires were bent 10 times at a 90° angle, and the surface condition was examined to evaluate the flexibility. did. Those with cracks or fine cracks were rated as ×, and those with no abnormalities were rated as ○.

The results of each measurement are shown in Table 1.

Example 2 9 g of copolymer P and 5 parts by weight were mixed with 1.5 parts by weight of difny-methane-bis-4,4'-levamoyl-ε-caprolactam (hereinafter abbreviated as MDIC) using a conventional extruder. A uniformly melted and mixed pellet was obtained. The obtained resin composition was evaluated in the same manner as in Example 1. The results are shown in Table 1.

Examples 3 to 6 Evaluations were carried out in the same manner as in Example 1, except that Q and R were used as copolymers. The results are shown in Table 1.

Examples 7-9 Each of Examples 1.3.5 was loaded with an antioxidant and triethylene glycol bis[3-(3-t-butyl-5-methyl-4-hydroxyphenyl)propionate:l (I
rgauox■245) to 100 parts by weight of resin.
Each resin composition containing 0 parts by weight was evaluated in the same manner as in Example 1. The results are shown in Table 1.

Examples 10 to 12 Evaluations were made in the same manner as in Example 1, except that the resin composition was changed as shown in Table 1. The results are shown in Table 1.

Comparative Examples 1 to 6 Example 1 except that the copolymer and resin composition used were changed as shown in Table 1 without blending the bislactam compound.
It was evaluated in the same manner. The results are shown in Table 1.

Comparative Example 7 98.5 parts by weight of polybutylene terephthalate was added to PBC
], 5 parts by weight were added and mixed in the same manner as in Example 1 to prepare test pieces and evaluated. The results are shown in Table 1.

Comparative Example 8 IFBCl to 86 parts by weight of polybutylene terephthalate,
5 parts by weight and 12.5 parts by weight of decabromodiphenyl ether were added and mixed in the same manner as in Example 1 to prepare a test piece and evaluated. The results are shown in Table 1.

Procedural amendment (voluntary) July 8, 1988 1, Indication of case Patent application No. 1982-101466 2, Title of invention Halogen-containing polyester resin composition and electric wire 3, Relationship with the person making the amendment Patent application Hito Polyplastics Co., Ltd. 4, Agent 5, Nakai Building, 1-3 Nihonbashi Yokoyama-cho, Chuo-ku, Tokyo, Claims of the Specification Subject to Amendment and Detailed Description of the Invention (1) Statement of the Claims Amendment as shown in the attached sheet (1) ``Mechanical characteristics'' in the 4th line from the bottom of page 6 of the specification is corrected to ``mechanical properties.'' (1) ``Of polyalkylene terephthalate'' in lines 9-10 of page 8 of the specification is deleted. 10, page 10, 2nd impression composition from the bottom was corrected to ``substrate adhesion.'' (1) Page 13, line 4, ``--'' was replaced with ``Also,
The halogen compound preferably has four or more halogen atoms in one molecule. (1) Copolymer composition, page 14, line 1, 7. Corrected "copolymer composition" to "copolymer component" 2. Claim 1 (A) Primarily an aromatic dicarboxylic acid or its ester-forming derivative (B) Flame-retardant aromatic polyester copolymer with a halogen content of 0.5 to 30% by weight, obtained by polycondensation reaction of an ester-forming compound containing mainly aliphatic glycol or its ester-forming derivative (C) halogen. 0.0% of the bislactam compound based on the total amount of the composition.
A halogen-containing polyester resin composition characterized in that it contains 1 to 10% by weight.

2. The resin composition according to claim 1, wherein the halogen is bromine.

3. The resin composition according to claim 1 or 2, wherein the aliphatic glycol (B) is a C2-C8 low molecular weight glycol.

4. The resin composition according to claim 1 or 2, wherein the aliphatic glycol (B) is a low molecular weight glycol of C2 to C8 and a polyalkylene oquindo glycol having a molecular weight of 200 to 4,000.

5. The resin according to claim 3 or 4, wherein the C2 to C8 low molecular weight glycol is one or more of ethylene glycol, 1,4-butylene glycol, and 1°4-butene glycol. Composition.

7. The resin composition according to any one of claims 1 to i, wherein the bislactam compound is a compound represented by the following general formula (a).

(R represents a divalent organic group, and in the formula, the hydrogen atom may be substituted with an alkyl group or an aryl group. n is 2 to 8
is an integer. ) 8 R of the bislactam represented by the general formula (a) is the general formula (
The resin composition according to claim 7, which is a compound represented by b) or (C).

R: -[R, -C-(b) 11:1 R: C-Nt(R2NH-C(c) (R,, R2 represents a divalent organic group) 9 General formula (b), 9. The resin composition according to claim 8, wherein R, R2 in (c>) is an organic group containing at least one aromatic ring.

10. The resin composition according to any one of claims 1 to 1, further containing a stabilizer in an amount of 0.1 to 3% by weight based on the total amount of the composition.

11 By subjecting the surface of the conducting wire to a polycondensation reaction of (A) primarily an aromatic dicarboxylic acid or its ester-forming derivative, (B) primarily an aliphatic glycol or its ester-forming derivative, and (C) an ester-forming compound containing a halogen. The resulting halogen content is 0.5
~30% weight flammable aromatic polyester copolymer,
The bislactam compound is added in an amount of 0.1 to 10% based on the total amount of the composition.
An electric wire characterized in that it is coated with a coating material made of a halogen-containing polyester resin composition containing % by weight of the halogen-containing polyester resin composition.

(2) The electric wire according to claim 11, wherein the halogen is bromine.

An electric wire according to claim 1 or 2, wherein the electric wire is a low-voltage electric wire.

Claim 1: The electric wire is a low-voltage electric wire for automobiles.
Electric wires listed in section.

Claims (1)

[Scope of Claims] 1 (A) Primarily an aromatic dicarboxylic acid or its ester-forming derivative (B) Primarily an aliphatic glycol or its ester-forming derivative (C) A polycondensation reaction of an ester-forming compound containing a halogen A bislactam compound is added to the resulting flame-retardant aromatic polyester copolymer having a halogen content of 0.5 to 30% by weight based on the total amount of the composition.
A halogen-containing polyester resin composition characterized in that it contains 1 to 10% by weight. 2. The resin composition according to claim 1, wherein the halogen is bromine. 3. The resin composition according to claim 1 or 2, wherein the aliphatic glycol (B) is a low molecular weight glycol of C_2 to C_8. 4. The resin composition according to claim 1 or 2, wherein the aliphatic glycol (B) is a low molecular weight glycol of C_2 to C_8 and a polyalkylene oxide glycol of molecular weight 200 to 4,000. 5. The resin composition according to claim 3 or 4, wherein the low molecular weight glycol of C_2 to C_8 is one or more of ethylene glycol, 1,4-butylene glycol, and 1,4-butene glycol. thing. 6. The resin composition according to any one of claims 1 to 5, wherein the bislactam compound is a compound represented by the following general formula (a). ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (a) (R represents a divalent organic group, and in the formula, the hydrogen atom may be substituted with an alkyl group or an aryl group. n is 2 to 8
is an integer. ) 7 The resin composition according to claim 6, wherein R of the bislactam represented by general formula (a) is a compound represented by general formula (b) or (c). ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (b) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (c) (R_1 and R_2 represent divalent organic groups.) 8 General formulas (b), (c) The resin composition according to claim 7, wherein R_1 and R_2 are organic groups containing at least one aromatic ring. 9. The resin composition according to any one of claims 1 to 8, further containing a stabilizer in an amount of 0.1 to 3% by weight based on the total amount of the composition. 10 By polycondensation reaction of (A) mainly aromatic dicarboxylic acid or its ester-forming derivative (B) mainly aliphatic glycol or its ester-forming derivative (C) halogen-containing ester-forming compound on the surface of the conducting wire. A bislactam compound is added to the resulting flame-retardant aromatic polyester copolymer having a halogen content of 0.5 to 30% by weight based on the total amount of the composition.
An electric wire characterized in that it is coated with a coating material made of a halogen-containing polyester resin composition containing 1 to 10% by weight. 11. The electric wire according to claim 10, wherein the halogen is bromine. 12. The electric wire according to claim 10 or 11, wherein the electric wire is a low-voltage electric wire. 13. The electric wire according to claim 12, wherein the electric wire is a low-voltage electric wire for automobiles.