JPS6259662A - Aromatic polyester resin composition - Google Patents

Aromatic polyester resin composition

Info

Publication number
JPS6259662A
JPS6259662A JP60200246A JP20024685A JPS6259662A JP S6259662 A JPS6259662 A JP S6259662A JP 60200246 A JP60200246 A JP 60200246A JP 20024685 A JP20024685 A JP 20024685A JP S6259662 A JPS6259662 A JP S6259662A
Authority
JP
Japan
Prior art keywords
aromatic polyester
resin composition
repeating unit
polyester resin
arom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP60200246A
Other languages
Japanese (ja)
Other versions
JPH062862B2 (en
Inventor
Nobuyuki Inaba
稲葉 信行
Hideya Murai
秀哉 村井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idemitsu Petrochemical Co Ltd
Original Assignee
Idemitsu Petrochemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Idemitsu Petrochemical Co Ltd filed Critical Idemitsu Petrochemical Co Ltd
Priority to JP60200246A priority Critical patent/JPH062862B2/en
Publication of JPS6259662A publication Critical patent/JPS6259662A/en
Publication of JPH062862B2 publication Critical patent/JPH062862B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE:To provide a resin compsn. which does not cause rapid fluctuation in a coefficient of linear expansion around the transition temp. and is suitable for use as a cladding material for optical fibers, by blending a thermoplastic resin or elastomer with an arom. polyester contg. three specified repeating units. CONSTITUTION:An arom. polyester contg. 10-35mol% of a repeating unit of formula I, 10-35mol% of a repeating unit and 80-30mol% of a repeating unit of formula III is prepd. 90-55wt% said arom polyester is mixed with 10-45wt% thermoplastic resin or thermoplastic elastomer to obtain the desired arom. polyester resin compsn. When the resin compsn. is used as a cladding material for optical fibers, the crook of the fiber caused by a difference in a coefficient of linear expansion between the cladding material and glass fiber is not formed.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は芳香族ポリエステル樹脂組成物に関し、さらに
詳しくは、転移温度前後で線膨張係数が急激に変動する
ことがなく、とくに光ファイバーの被覆材として好適な
芳香族ポリエステル樹脂組成物に関する。
Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an aromatic polyester resin composition, and more specifically, the present invention relates to an aromatic polyester resin composition, which does not have a linear expansion coefficient that fluctuates rapidly around the transition temperature, and is particularly useful as a coating material for optical fibers. The present invention relates to an aromatic polyester resin composition suitable as an aromatic polyester resin composition.

[従来技術および発明が解決しようとする問題点]サー
モトロピック液晶ポリマーは優れた流動性を有するとと
もに配向性が高いことから、線膨張率が小さくかつ弾性
率が大きい成形品の製造に好適であるため、例えば、光
フアイバー用の被覆材としての用途が提案されている(
特開昭58−107943号、特開昭59−20880
3号および特開昭5O−58829号の各公報)。
[Prior art and problems to be solved by the invention] Thermotropic liquid crystal polymers have excellent fluidity and high orientation, so they are suitable for producing molded products with a small coefficient of linear expansion and a large modulus of elasticity. Therefore, for example, its use as a coating material for optical fibers has been proposed (
JP-A-58-107943, JP-A-59-20880
No. 3 and Japanese Unexamined Patent Publication No. 50-58829).

具体的には、かかる液晶ポリマーのうち、例えば、ポリ
エチレンテレフタレートを変性せしめて得られる液晶ポ
リマーの場合、 50℃付近に転移点が存在し、この転
移温度(Tc)より低い温度では線1膨彊係数が10’
  deg−’のオーダーであり、これはガラス繊維の
m膨張係数 (10−’  deg−’ )と極めて近
接しているため、光フアイバー用被覆材として優れたも
のとなる。
Specifically, among such liquid crystal polymers, for example, in the case of a liquid crystal polymer obtained by modifying polyethylene terephthalate, there is a transition point around 50°C, and a linear expansion occurs at a temperature lower than this transition temperature (Tc). coefficient is 10'
degree, which is very close to the m-expansion coefficient of glass fiber (10-'deg-'), making it an excellent coating material for optical fibers.

ところが、このものは、転移温度以上の温度では、線膨
張係数が急激に増大して、1(1’  deg−’の十
−ダー、すなわち前述したTc以下のときの値に比べ約
100倍となってしまう。そのため、ガラス繊維との線
膨張係数の差が極めて大きくなり、結果として、光ファ
イバーが湾曲するなどの不都合が生ずる。
However, at temperatures above the transition temperature, the linear expansion coefficient of this material rapidly increases to 1 (1'deg-'), that is, about 100 times the value when the temperature is below Tc. As a result, the difference in linear expansion coefficient between the optical fiber and the glass fiber becomes extremely large, resulting in problems such as bending of the optical fiber.

本発明は、従来のかかる問題を解消し、転移温度前後で
線膨張係数が変化することなく常にガラス繊維との線膨
張係数と近似した値を保持し、光ファイバーの被覆材と
して好適な液晶ポリマーとしての芳香族ポリエステル樹
脂組成物の提供を目的とする。
The present invention solves this conventional problem, and the linear expansion coefficient does not change before and after the transition temperature, always maintaining a value close to that of glass fiber, and is suitable as a liquid crystal polymer as a coating material for optical fibers. The purpose of the present invention is to provide an aromatic polyester resin composition.

[問題点を解決するための手段] 本発明者らは、上記の目的を達成すべく鋭意研究を玉ね
た結果、特定の繰返し単位を有する芳香族ポリエステル
と、熱可塑性樹脂もしくは熱可塑性エラストマーとを所
定の割合で混合してなる芳香族ポリエステル樹脂組成物
が優れた効果を示すことを見出して本発明を完成するに
到った。
[Means for Solving the Problems] As a result of intensive research to achieve the above object, the present inventors discovered that aromatic polyester having a specific repeating unit, thermoplastic resin or thermoplastic elastomer, and thermoplastic resin or thermoplastic elastomer. The present invention was completed based on the discovery that an aromatic polyester resin composition obtained by mixing the following in a predetermined ratio exhibits excellent effects.

すなわち、本発明の芳香族ポリエステル樹脂組成物は、 で示される緑り返し単位(A) 10〜35モル%、次
式二   −〇−(H2−CH2−0−(2)で示され
る繰り返し単位(B) 10〜35モル%、および で示される繰り返し単位(C) 30〜80モル%を有
する芳香族ポリエステル90〜551縫%:並びに熱可
塑性樹脂もしくは熱可塑性エラストマー10〜45重量
%からなることを特徴とする。
That is, the aromatic polyester resin composition of the present invention contains 10 to 35 mol% of the green repeating unit (A) represented by the following, and a repeating unit represented by the following formula 2-0-(H2-CH2-0-(2)). (B) 10 to 35 mol%, and (C) 90 to 551 mol% of an aromatic polyester having 30 to 80 mol%; and 10 to 45% by weight of a thermoplastic resin or thermoplastic elastomer. It is characterized by

[具体的説明) 本発明の芳香族ポリエステル樹脂組成物は、前述したよ
うに、式(1)〜(3)で示される繰返し単位を有する
芳香族ポリエステル樹脂と熱可塑性樹脂もしくは熱可塑
性エラストマーとの2成分よりなる。
[Specific Description] As mentioned above, the aromatic polyester resin composition of the present invention is composed of an aromatic polyester resin having repeating units represented by formulas (1) to (3) and a thermoplastic resin or a thermoplastic elastomer. Consists of two components.

まず、第1の成分である芳香族ポリエステルにおいて、
各繰り返し単位(A) 、 (B)および(C)の含有
量はそれぞれ10〜35モル%、10〜35モル%およ
び30〜80モル%で、かつ合計で100モル%となる
ように設定する。このうち、とくに重要なものは繰り返
し単位(C)の含有量であって、これが30モル%未満
である場合には、該芳香族ポリエステルが液晶を形成せ
ず、逆に80モル%を超えると液晶は形成するものの、
成形性が低下するので好ましくない、ざらに、この芳香
族ポリニスチルは。
First, in the aromatic polyester that is the first component,
The content of each repeating unit (A), (B) and (C) is set to be 10 to 35 mol%, 10 to 35 mol% and 30 to 80 mol%, respectively, and a total of 100 mol%. . Of these, the content of the repeating unit (C) is particularly important; if it is less than 30 mol%, the aromatic polyester will not form a liquid crystal, and if it exceeds 80 mol%, the aromatic polyester will not form a liquid crystal. Although liquid crystals are formed,
This aromatic polynistyl is undesirable because it reduces moldability.

このものを例えばフェノールとテトラクロロエタンの混
合溶液 (体積比3:2) 100−に0.5g溶解せ
しめて得られる溶液について30℃で測定した対数粘度
数が0.4〜3.0の範囲であることが好ましい。
For example, if the logarithmic viscosity measured at 30°C for a solution obtained by dissolving 0.5 g of this material in a mixed solution of phenol and tetrachloroethane (volume ratio 3:2) 100 is in the range of 0.4 to 3.0. It is preferable that there be.

なお、かかる芳香族ポリエステルは、通常の方法を適用
して調製しても、また、市販品、例えばイーストマンコ
ダック社製のX7Gなどを使用してもよい。
The aromatic polyester may be prepared by a conventional method, or a commercially available product such as X7G manufactured by Eastman Kodak Company may be used.

ついで、第2の成分としては熱可塑性樹脂または熱可塑
性エラストマーのいずれのものを使用してもよい、使用
する熱可塑性樹脂としては、例えば、ポリエチレンテレ
フタレート、ポリブチレンテレフタレートなどのポリエ
ステル;ポリカーボネート、ポリエチレン、ポリプロピ
レンなどのポリオレフィン:ボリアリレンサルファイド
;ボリアリレート;ポリスルホン;ポリフェニレンサル
ファイド;ポリテトラフルオロエチレン;ポリスチレン
;ポリアミドなどをあげることができ、一方、熱可塑性
エラストマーとしては、例えば、ポリエステルエラスト
マー、ポリオレフィンエラストマーなどをあげることが
できる。これらの熱可塑性樹脂または熱可塑性エラスト
マーの好ましい分子量(もしくは分子量の指標となる値
)の範囲としては、例えば、ポリカーボネート (分子
量): 2,000〜jo 、ooo、ポリエチレンテ
レフタレート (極限粘度): 0.2〜2.0.ポリ
ブチレンテレフタレート (極限粘度): 0.2〜!
、5.ポリエチレン(重量平均分子量): 100,0
00〜300.000、ポリスチレン (ff!量平均
分子量): 200,000〜400.000 、ポリ
エステルエラストマー(MI):  4〜l5である。
Next, as the second component, either a thermoplastic resin or a thermoplastic elastomer may be used. Examples of the thermoplastic resin used include polyesters such as polyethylene terephthalate and polybutylene terephthalate; polycarbonate, polyethylene, Polyolefins such as polypropylene: polyarylene sulfide; polyarylate; polysulfone; polyphenylene sulfide; polytetrafluoroethylene; I can give it to you. Preferred ranges of molecular weights (or values serving as indicators of molecular weight) of these thermoplastic resins or thermoplastic elastomers include, for example, polycarbonate (molecular weight): 2,000 to 2,000, ooo, polyethylene terephthalate (intrinsic viscosity): 0. 2-2.0. Polybutylene terephthalate (intrinsic viscosity): 0.2~!
,5. Polyethylene (weight average molecular weight): 100,0
00-300.000, polystyrene (ff! weight average molecular weight): 200,000-400.000, polyester elastomer (MI): 4-15.

なお、これらのうち、ポリエチレンテレフタレート、ポ
リブチレンテレフタレート、ポリカーボネート、ポリエ
ステルエラストマーなどの芳香環含有ポリマーはとくに
好ましいものである。
Among these, aromatic ring-containing polymers such as polyethylene terephthalate, polybutylene terephthalate, polycarbonate, and polyester elastomer are particularly preferred.

本発明の芳香族ポリエステル樹脂組成物は、前述した第
1および第2の成分を混合して得られるものである。こ
のとき、第1の成分である芳香族ポリエステルの配合量
を90〜55重量%、第2の成分である熱可塑性樹脂も
しくは熱可塑性エラストマーの配合量を10〜45重量
%とし、合計で 100重量%とする必要がある。第1
の成分が90重量%を超える場合、すなわち、第2の成
分が10重量%未満であると得られた樹脂組成物の転移
温度(Tc)以上での線膨張係数(α)の絶対値が増大
してしまう。一方、第1の成分が55重量%未満である
場合、すなわち、第2の成分が45重量%を超えるとα
の絶対値が増加するとともに剛性が低下してしまうので
好ましくない、好ましくは第1の成分が80〜60重量
%、第2の成分が20〜40重量%である。
The aromatic polyester resin composition of the present invention is obtained by mixing the first and second components described above. At this time, the blending amount of aromatic polyester as the first component is 90 to 55% by weight, and the blending amount of thermoplastic resin or thermoplastic elastomer as the second component is 10 to 45% by weight, for a total of 100% by weight. It needs to be %. 1st
When the component exceeds 90% by weight, that is, when the second component is less than 10% by weight, the absolute value of the coefficient of linear expansion (α) at the transition temperature (Tc) or higher of the resulting resin composition increases. Resulting in. On the other hand, if the first component is less than 55% by weight, that is, if the second component exceeds 45% by weight, α
As the absolute value of increases, the rigidity decreases, which is undesirable. Preferably, the first component is 80 to 60% by weight, and the second component is 20 to 40% by weight.

このような本発明の芳香族ポリエステル樹脂組成物は、
各成分を上述の配合量で配合したのち、混合混練するこ
とによって容易に製造することができる。この混練工程
には、乾混法、融混併用法、多段溶融混合法、単純溶融
混合法などを適用することができ、必要に応じて、−軸
押出機、二軸混練機、コニーダー、パンバリミキサー、
ヘンシェルミキサーなどを使用することができる。
Such an aromatic polyester resin composition of the present invention,
It can be easily manufactured by mixing and kneading each component in the above-mentioned amounts. For this kneading process, a dry mixing method, a combined melt mixing method, a multi-stage melt mixing method, a simple melt mixing method, etc. can be applied. burr mixer,
A Henschel mixer or the like can be used.

なお、こうして得られた樹脂組成物を、50°C〜融点
以下の温度で5秒間〜50時間熱処理すると線膨張係数
の変動をより小さく抑えることができるため更に効果的
である。
It is to be noted that it is more effective to heat-treat the resin composition thus obtained at a temperature of 50° C. to below the melting point for 5 seconds to 50 hours, since fluctuations in the coefficient of linear expansion can be suppressed to a smaller level.

[実施例] 表中に符号または略号で示した芳香族ポリエステルと熱
可塑性樹脂もしくは熱可塑性エラストで−とを表示の配
合量で混合し、二軸混線機を使用して260℃において
溶融混練したのらペレット化した。
[Example] The aromatic polyester shown by the code or abbreviation in the table and the thermoplastic resin or thermoplastic elastomer were mixed in the indicated amounts and melted and kneaded at 260°C using a twin-shaft mixer. The seaweed was made into pellets.

ついで、メルトテンションテスター (東洋精機製)を
使用して、上記により得られたベレットから直径0.8
a++*のファイバーを作製した。このときの条件は、
成形温度280℃、押出速度20d 7分。
Next, using a melt tension tester (manufactured by Toyo Seiki), a diameter of 0.8
A +++* fiber was produced. The conditions at this time are
Molding temperature: 280°C, extrusion speed: 20d, 7 minutes.

タイス径2ma+φ、 L/D−10にそれぞれ設定し
た。
The tie diameter was set to 2ma+φ and L/D-10.

得られたファイバーを 170℃、真空恒温槽中で30
分間熱処理したのち、熱分析装置 (セイコー電子社製
)により−100℃〜TcおよびTc−100℃におけ
る線膨張係数を、また、粘弾性スペクトロメーター (
唐木製作所製)を用いてヤング率をそれぞれ測定して結
果を表に示した。なお、各樹脂組成物のTc(”C)も
表中に併せて示した。
The obtained fiber was heated at 170°C in a vacuum thermostat for 30 minutes.
After heat treatment for a minute, linear expansion coefficients at -100°C to Tc and Tc -100°C were measured using a thermal analyzer (manufactured by Seiko Electronics Co., Ltd.) and a viscoelastic spectrometer (
The Young's modulus of each sample was measured using the following method (manufactured by Karaki Seisakusho), and the results are shown in the table. Note that the Tc ("C) of each resin composition is also shown in the table.

また、表中に符号又は略号で示した芳香族ポリエステル
および熱可塑性樹脂もしくは熱可塑性エラストマーは以
下のようなものである。
In addition, the aromatic polyesters and thermoplastic resins or thermoplastic elastomers indicated by symbols or abbreviations in the table are as follows.

(1)芳香族ポリエステル: (イ) X7に(イーストマンコダック社製;対数粘度
数: 0.80、p−アセトキシ安息香酸量=60モル
%) (ロ) X7G(イーストマンコダック社製;対数粘度
数: 0.54、p−7セトキシ安息香酸量:50モル
%) (ハ) X7G(イーストマンコダック社製一対数粘度
数: 0.80、p−アセトキシ安息香酸量ニア0モル
%) (2)熱可塑性樹脂もしくは熱可塑性エラストマーPC
:  ポリカーボネート (出光石油化学株製;出光ポ
リカーボネートA2200.ffi i ”F均分子量
: 22,000) PET:  ポリエチレンテレフタレート(三菱レイヨ
ン株製;MA523、極限粘度0.75)PET: ポ
リブチレンテレフタレート (ポリプラスチックス■製
;ジュラネックス2002、極限粘度t、oe) PEEL : ポリエステルエラストマー (東し−デ
ュボン■製;ハイトレル、Hr= 13g/10分) PE:  ポリエチレン (出光石油化学株製;出光ポ
リエチレン520B、重量乎均分子罎: 130,00
0) PS:  ポリスチレン (出光石油化学■製;出光ポ
リスチレンNF20、ff1ffi平均分子量: 20
0,000) 〔発明の効果〕 以上の説明から明らかなように5本発明の芳香族ポリエ
ステル樹脂組成物は、その転移温度(Tc)前後におけ
る線膨張係数の変化が従来の光フアイバー用被覆材に比
べて極めて小さく、しかも、充分なりl性率を有するた
め、光フアイバー用の被覆材として使用した場合に、線
膨張係数の差異に起因するファイバーの湾曲などが発生
することがない。したがって、その工業的価値は極めて
大である。
(1) Aromatic polyester: (a) X7 (manufactured by Eastman Kodak Company; logarithmic viscosity: 0.80, p-acetoxybenzoic acid amount = 60 mol%) (b) X7G (manufactured by Eastman Kodak Company; logarithm Viscosity number: 0.54, p-7 acetoxybenzoic acid amount: 50 mol%) (c) 2) Thermoplastic resin or thermoplastic elastomer PC
: Polycarbonate (manufactured by Idemitsu Petrochemical Co., Ltd.; Idemitsu Polycarbonate A2200.ffi i "F average molecular weight: 22,000) PET: Polyethylene terephthalate (manufactured by Mitsubishi Rayon Co., Ltd.; MA523, intrinsic viscosity 0.75) PET: Polybutylene terephthalate (polyplastic PEEL: Polyester elastomer (manufactured by Toshi-Dubon; Hytrel, Hr=13g/10 min) PE: Polyethylene (manufactured by Idemitsu Petrochemical Co., Ltd.; Idemitsu Polyethylene 520B, weight Average molecular weight: 130,00
0) PS: Polystyrene (manufactured by Idemitsu Petrochemical ■; Idemitsu Polystyrene NF20, ff1ffi average molecular weight: 20
0,000) [Effects of the Invention] As is clear from the above explanation, the aromatic polyester resin composition of the present invention exhibits a change in linear expansion coefficient around its transition temperature (Tc) that is higher than that of conventional coating materials for optical fibers. It is extremely small compared to , and has a sufficient lactic coefficient, so when used as a coating material for optical fibers, curvature of the fibers due to differences in linear expansion coefficients will not occur. Therefore, its industrial value is extremely large.

Claims (1)

【特許請求の範囲】 次式:▲数式、化学式、表等があります▼(1) で示される繰り返し単位(A)10〜35モル%、次式
:−O−CH_2−CH_2−O−(2)で示される繰
り返し単位(B)10〜35モル%、および 次式:▲数式、化学式、表等があります▼(3) で示される繰り返し単位(C)30〜80モル%を有す
る芳香族ポリエステル90〜55重量%;並びに熱可塑
性樹脂もしくは熱可塑性エラストマー10〜45重量%
からなることを特徴とする芳香族ポリエステル樹脂。
[Claims] The following formula: ▲ Numerical formulas, chemical formulas, tables, etc. ▼ 10 to 35 mol% of the repeating unit (A) represented by (1), the following formula: -O-CH_2-CH_2-O-(2 ) and 30 to 80 mol% of the repeating unit (C) represented by the following formula: ▲ Numerical formula, chemical formula, table, etc. ▼ (3) 90-55% by weight; and 10-45% by weight of thermoplastic resin or thermoplastic elastomer
An aromatic polyester resin characterized by consisting of.
JP60200246A 1985-09-10 1985-09-10 Aromatic polyester resin composition Expired - Lifetime JPH062862B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60200246A JPH062862B2 (en) 1985-09-10 1985-09-10 Aromatic polyester resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60200246A JPH062862B2 (en) 1985-09-10 1985-09-10 Aromatic polyester resin composition

Publications (2)

Publication Number Publication Date
JPS6259662A true JPS6259662A (en) 1987-03-16
JPH062862B2 JPH062862B2 (en) 1994-01-12

Family

ID=16421212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60200246A Expired - Lifetime JPH062862B2 (en) 1985-09-10 1985-09-10 Aromatic polyester resin composition

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636046A (en) * 1986-06-26 1988-01-12 Idemitsu Petrochem Co Ltd Aromatic polyester resin composition
JPH01182360A (en) * 1988-01-14 1989-07-20 Asahi Chem Ind Co Ltd Polyester composition with liquid crystal nature
JPH01304136A (en) * 1988-06-01 1989-12-07 Chisso Corp Thermoplastic resin composition for stick of small bore diameter and stick of small bore diameter made therefrom
JPH0280446A (en) * 1988-09-16 1990-03-20 Mitsui Toatsu Chem Inc Polypropylene resin composition

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115357A (en) * 1979-11-30 1981-09-10 Ici Ltd Melt workable polymer composition having improved workability
JPS58201850A (en) * 1982-05-03 1983-11-24 バイエル・アクチエンゲゼルシヤフト Mixture of mesomorphous polycondensate and partially crystal thermoplast, manufacture and use
JPS5947229A (en) * 1982-09-13 1984-03-16 Mitsubishi Chem Ind Ltd Resin composition
JPS6093406A (en) * 1983-10-28 1985-05-25 Nippon Telegr & Teleph Corp <Ntt> Optical fiber core
JPS6093407A (en) * 1983-10-28 1985-05-25 Nippon Telegr & Teleph Corp <Ntt> Optical fiber core
JPS6114616A (en) * 1984-06-29 1986-01-22 Nippon Telegr & Teleph Corp <Ntt> Optical fiber core

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115357A (en) * 1979-11-30 1981-09-10 Ici Ltd Melt workable polymer composition having improved workability
JPS58201850A (en) * 1982-05-03 1983-11-24 バイエル・アクチエンゲゼルシヤフト Mixture of mesomorphous polycondensate and partially crystal thermoplast, manufacture and use
JPS5947229A (en) * 1982-09-13 1984-03-16 Mitsubishi Chem Ind Ltd Resin composition
JPS6093406A (en) * 1983-10-28 1985-05-25 Nippon Telegr & Teleph Corp <Ntt> Optical fiber core
JPS6093407A (en) * 1983-10-28 1985-05-25 Nippon Telegr & Teleph Corp <Ntt> Optical fiber core
JPS6114616A (en) * 1984-06-29 1986-01-22 Nippon Telegr & Teleph Corp <Ntt> Optical fiber core

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636046A (en) * 1986-06-26 1988-01-12 Idemitsu Petrochem Co Ltd Aromatic polyester resin composition
JPH0545625B2 (en) * 1986-06-26 1993-07-09 Idemitsu Petrochemical Co
JPH01182360A (en) * 1988-01-14 1989-07-20 Asahi Chem Ind Co Ltd Polyester composition with liquid crystal nature
JPH0512391B2 (en) * 1988-01-14 1993-02-17 Asahi Chemical Ind
JPH01304136A (en) * 1988-06-01 1989-12-07 Chisso Corp Thermoplastic resin composition for stick of small bore diameter and stick of small bore diameter made therefrom
JPH0280446A (en) * 1988-09-16 1990-03-20 Mitsui Toatsu Chem Inc Polypropylene resin composition

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