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JPS62292830A - Aromatic polyester for optical material - Google Patents

Aromatic polyester for optical material

Info

Publication number
JPS62292830A
JPS62292830A JP61137016A JP13701686A JPS62292830A JP S62292830 A JPS62292830 A JP S62292830A JP 61137016 A JP61137016 A JP 61137016A JP 13701686 A JP13701686 A JP 13701686A JP S62292830 A JPS62292830 A JP S62292830A
Authority
JP
Japan
Prior art keywords
chloride
aromatic polyester
tables
formulas
optical materials
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.)
Pending
Application number
JP61137016A
Other languages
Japanese (ja)
Inventor
Yasushi Aikawa
相川 泰
Nobuhiro Fukuda
福田 信宏
Tokuaki Koseki
徳昭 小関
Susumu Tate
楯 進
Akira Chiba
明 千葉
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.)
Toyobo Co Ltd
Original Assignee
Toyobo 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP61137016A priority Critical patent/JPS62292830A/en
Publication of JPS62292830A publication Critical patent/JPS62292830A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/41Base layers supports or substrates
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To obtain an aromatic polyester which is transparent, has a low double refractive index and is useful for various optical materials, by polymerizing a dicarboxylic acid or its chloride with a specified bisphenol. CONSTITUTION:This polyester is obtained by polymerizing a dicarboxylic acid or its chloride with a bisphenol of formula I (wherein X is a bivalent organic group of formula II, III, IV, V, VI or VII). Examples of the dicarboxylic acids or their chlories which are desirable include terephthaloyl chloride, isophthaloyl chloride, adipoyl chloride and sebacoyl chloride. As reactions for obtaining said aromatic polyester, any of an interfacial polymerization process and a solution polymerization process can be used.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は光学材料用芳香族ポリエステルに関する。詳し
くは、立体規制された芳香環を側鎖に持つ、81屈折率
の低い芳香族ポリエステルに関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an aromatic polyester for optical materials. Specifically, the present invention relates to an aromatic polyester having a low refractive index of 81 and having a sterically restricted aromatic ring in a side chain.

〔従来の技術〕[Conventional technology]

通常、光学材料用たとえば光デイスク用プラスチックと
してポリメチルメタクリレ−)(PMMA)、ボリカー
ボネー) (PC)およびエポキシ樹脂などが用いられ
ている。
Generally, polymethyl methacrylate (PMMA), polycarbonate (PC), and epoxy resins are used as plastics for optical materials, such as optical disks.

ところがP M M Aとエポキシ樹脂はその複屈折は
ほぼゼロであるが、PMMAは吸水性が大きく耐熱性も
やや不溝であり、エポキシ樹脂は射出成形できないとい
う欠点がある。一方PCは耐熱性、吸水性はほぼ滴定で
きるが、溶融粘度が制く射出成形時の配向による複屈折
が発現するという欠点を有している。この点を克服する
ため、PCの分子量を下げたり、オリゴマーを混合する
などして溶融粘度を下げる方法がとられているが、この
ような方法では、耐熱性および機械的強度の低下をきた
す恐れがあり、しかも成形条件を微妙にコ整しなければ
ならない。
However, although PMMA and epoxy resin have almost zero birefringence, PMMA has a large water absorption property and somewhat poor heat resistance, and epoxy resin has the disadvantage that it cannot be injection molded. On the other hand, PC has heat resistance and water absorption that can be almost titrated, but it has the disadvantage that birefringence occurs due to orientation during injection molding, which is controlled by melt viscosity. In order to overcome this problem, methods have been taken to lower the melt viscosity by lowering the molecular weight of PC or mixing oligomers, but such methods may cause a decrease in heat resistance and mechanical strength. Moreover, the molding conditions must be delicately adjusted.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

光学材料用ポリマーとして、前記従来より公知のポリマ
ーを改良しても限界があるため、全く異なるポリマーを
考慮した場合、たとえば透明で耐熱性の良好なポリマー
としてビスフェ/ −/Iz A ラグリコール成分と
する芳香族ポリエステルがあるが、複屈折率が非常に高
く、光学材料用、特に光デイスク用としては全く使用で
きない。
As polymers for optical materials, there are limits even if the conventionally known polymers are improved, so when considering completely different polymers, for example, bisphe/-/IzA Laglycol component and a transparent and heat-resistant polymer. Although there are aromatic polyesters that have a very high birefringence, they cannot be used at all for optical materials, especially for optical disks.

C問題点を解決するための手段〕 本発明者らは、前記芳香族ポリエステルが成形時のわず
かの配向によっても複屈折率が高くなるのは、芳香族ポ
リエステルの分子自体が複屈折率が高いためだという知
見に基き、分子自体の複屈折率の低い芳香族ポリエステ
ルを鋭意検討した結果、立体規制された側鎖の芳香環が
主鎖の芳香環の複屈折を打消して、分子自体の複屈折率
を低下させることを見出し、遂に本発明を完成するに到
った。すなわち本発明は、二価カルボン酸またはその塩
化物および下記一般式(I)で示されるビスフェノール
とを重合して得られる光学材料用芳香族ポリエステルで
ある。
Means for Solving Problem C] The present inventors believe that the reason why the aromatic polyester has a high birefringence even with a slight orientation during molding is that the molecules of the aromatic polyester itself have a high birefringence. Based on the knowledge that the birefringence of the molecule itself is low, based on the knowledge that aromatic polyesters have a low birefringence index, they found that the aromatic rings in the sterically-regulated side chains cancel out the birefringence of the aromatic rings in the main chain, and the molecule itself has a low birefringence. It was discovered that the birefringence can be lowered, and the present invention was finally completed. That is, the present invention is an aromatic polyester for optical materials obtained by polymerizing a divalent carboxylic acid or its chloride and a bisphenol represented by the following general formula (I).

本発明において二価カルボッ酸またはその塩化物として
は下記一般式(T1)で示される化合物が用いられる。
In the present invention, a compound represented by the following general formula (T1) is used as the dicarboxylic acid or its chloride.

前期二価カルボ/i!Iと前記一般式(1)で示される
ビスフェノールとより本発明の光学材料用芳香族ポリエ
ステルを得る方法としては、界面重合法および溶液重合
法のいずれも採用することができる。
Early bivalent carbo/i! As a method for obtaining the aromatic polyester for optical materials of the present invention from I and the bisphenol represented by the general formula (1), both an interfacial polymerization method and a solution polymerization method can be employed.

界面m合法を採用する場合、溶媒としてC8mCf4−
m(m= 0−3> 、Cm  HnCffi、−n(
n=2〜5)、 Cff−C1’)1(Z’ =Cff
1、I3r、 e=1〜2)テ示it h 6 ハO’
r’ 7 化Fl化水素を用い、温度−20℃〜80℃
、好ましくは一20℃〜40℃で重合される。なお反応
の初期および/または後期は80℃以内に加熱してもよ
い。また触媒としてはトリメチルベンジルアンモニウム
クロリド、トリメチルセチルアンモニウムプロミドなど
の4級アンモニウム塩、トリフェニルメチルホスホニウ
ムクロリドなどの4級ホスホニウム塩、トリエチルアミ
ン、トリーn−ブチルアミンオキシドなどの3級アミン
、アミンオキンド、他に4級スルホニウム塩などが用い
られる。さらに酸化防止剤としてハイドロサルファイド
ナトリウム、水素化硼素ナトリウムなどを添加してもよ
い。
When using the interfacial m method, C8mCf4- is used as a solvent.
m(m=0-3>, Cm HnCffi, -n(
n=2~5), Cff-C1')1(Z'=Cff
1, I3r, e=1~2) te it h 6 haO'
Using r' 7 Fl hydrogen, temperature -20°C to 80°C
, preferably at -20°C to 40°C. Note that the reaction may be heated to a temperature of 80°C or less during the initial and/or latter stages of the reaction. Catalysts include quaternary ammonium salts such as trimethylbenzylammonium chloride and trimethylcetylammonium bromide, quaternary phosphonium salts such as triphenylmethylphosphonium chloride, tertiary amines such as triethylamine and tri-n-butylamine oxide, amine oxides, and others. Quaternary sulfonium salts and the like are used. Furthermore, sodium hydrosulfide, sodium borohydride, etc. may be added as an antioxidant.

一方、溶液重合法を採用する場合、溶媒としてジメチル
スルホオキシド、ジメチルホルムアミド、ジメチルアセ
トアミド、N−メチルピロリド7.3−(跣   など
の沸点が重合温度以上である極性溶媒を用い、二価カル
ボ/酸塩化物の分解点以下の温度、20℃〜200℃、
好ましくは80℃〜180℃で、マグネシウムクロリド
、塩化亜鉛、塩化錫などの金属ハロゲン化物を触媒とし
て重合される。
On the other hand, when employing the solution polymerization method, a polar solvent with a boiling point higher than the polymerization temperature, such as dimethyl sulfoxide, dimethylformamide, dimethylacetamide, N-methylpyrrolid Temperature below the decomposition point of chloride, 20°C to 200°C,
The polymerization is preferably carried out at 80°C to 180°C using a metal halide such as magnesium chloride, zinc chloride, or tin chloride as a catalyst.

以上の方法によって得られる本発明芳香族ポリエステル
は光学材料用として、たとえば各種レンズ、光ファイバ
、光ディスク、透明電極の基板などに用いることができ
る。
The aromatic polyester of the present invention obtained by the above method can be used for optical materials, such as various lenses, optical fibers, optical disks, transparent electrode substrates, and the like.

〔実施例〕〔Example〕

以下実施例を用いて本発明yf谷族ポリエステルの製造
方法を具体的に示すが、本発明はこれらに限定されるも
のではない。
The method for producing the yf Valley polyester of the present invention will be specifically described below using Examples, but the present invention is not limited thereto.

なお、複屈折率は偏光顕微鏡を備えたセナルモンフンペ
ンセーター(日本地科学社製)を用いナトリウムラップ
を光源として測定した。
The birefringence was measured using a Senarmonfunpensator (manufactured by Nippon Geikagaku Co., Ltd.) equipped with a polarizing microscope and using a sodium wrap as a light source.

実施例1゜ フェノールフタレイン7.96重量部、水酸化ナトリウ
ム2重量部、250重量部、ベンジルトリエチルアンモ
ニウム0.04 fflffi部および亜ジチオン酸ナ
トリウム0.04重量部より溶液(A)を調整し、一方
テレフタル酸塩化物2.54重量部、イソフタル酸塩化
物2.54重量部および乾燥ジクロルエタン75重量部
を混合して溶液(n)を調整した。前記溶液(A)を激
しく撹拌しながら溶液(B)を一度に加えて20℃で1
0分間反応させた。反応混合物を多量のアセトンに再沈
シフし、析出したポリマーを2回水洗した後減圧乾燥し
た。得られたポリマーは環元比粘度(7エ/−ル/テト
ラクロロエタン(8/4 vol/vol)の0.5g
/dQ溶液とし30℃で測定した)ηsp/c=0.6
0、軟化温度(Ts)283°Cの芳香族ポリエステル
であった。
Example 1 A solution (A) was prepared from 7.96 parts by weight of phenolphthalein, 2 parts by weight of sodium hydroxide, 250 parts by weight, 0.04 parts by weight of benzyltriethylammonium and 0.04 parts by weight of sodium dithionite. On the other hand, a solution (n) was prepared by mixing 2.54 parts by weight of terephthalic acid chloride, 2.54 parts by weight of isophthalic acid chloride, and 75 parts by weight of dry dichloroethane. While vigorously stirring the solution (A), add the solution (B) all at once and heat at 20°C for 1 hour.
The reaction was allowed to proceed for 0 minutes. The reaction mixture was reprecipitated in a large amount of acetone, and the precipitated polymer was washed twice with water and then dried under reduced pressure. The obtained polymer had a ring specific viscosity of 0.5 g (7 ethanol/tetrachloroethane (8/4 vol/vol)).
/dQ solution and measured at 30°C) ηsp/c=0.6
0. It was an aromatic polyester with a softening temperature (Ts) of 283°C.

入 この芳香族ポリエステル2.0gをクロロホルムg、o
g+、、溶解しキャスト製膜して、室温で1日乾燥して
フィルムを得た。
Add 2.0 g of this aromatic polyester to chloroform (g, o)
g+, melted and cast to form a film, dried at room temperature for 1 day to obtain a film.

該フィルムを280℃に加熱、1.5倍に延伸し複屈折
率(Δn)を測定したところ3.0であった。
The film was heated to 280° C., stretched 1.5 times, and its birefringence (Δn) was measured and found to be 3.0.

実施例2〜4、比較例1〜3 実施例1において第1表に示すビスフェノール成分を用
い、酸成分としてはテレフタル酸塩化物とイソフタル酸
塩化物の等ffi混合物またはアジピン酸塩化物を用い
た以外は全て実施例1と同様にして芳香族ポリエステル
を得、フィルム成形した。その結果を第1表に示す。な
お比較例2は市販のポリカーボネート(三菱瓦斯化学社
製:商品名ニーピロノ)を、比較例3はポリメチルメタ
クリレート(協和ガス化学社製:商品名バラペット)を
用いた。
Examples 2 to 4, Comparative Examples 1 to 3 In Example 1, the bisphenol components shown in Table 1 were used, and as the acid component, an ffi mixture such as terephthalic acid chloride and isophthalic acid chloride or adipic acid chloride was used. Except for this, an aromatic polyester was obtained in the same manner as in Example 1 and formed into a film. The results are shown in Table 1. Comparative Example 2 used commercially available polycarbonate (manufactured by Mitsubishi Gas Chemical Co., Ltd., trade name: Niepirono), and Comparative Example 3 used polymethyl methacrylate (manufactured by Kyowa Gas Chemical Co., Ltd., trade name: Barapet).

第  1  表 第1表より明らかなように立体規制された芳香環側鎖を
存する本発明芳香族ポリエステル(実施例1〜4)は複
屈折率が低く軟化温度が高いが、芳香環側鎖のないポリ
エステル(比較例1)は複屈折率が14.0もあった。
Table 1 As is clear from Table 1, the aromatic polyesters of the present invention (Examples 1 to 4) having sterically regulated aromatic ring side chains have a low birefringence and a high softening temperature; The polyester (Comparative Example 1) without the above had a birefringence of as high as 14.0.

また従来より用いられているポリマーは軟化点の低いも
のであった。
Furthermore, conventionally used polymers have low softening points.

(発明の効果〕 以上の構成よりなる芳香族ポリエステルは優れた耐熱性
を存するとともに、透明でη屈折が低いため各種の光学
材料として使用することができ、産業界に寄与すること
大である。
(Effects of the Invention) The aromatic polyester having the above structure has excellent heat resistance, is transparent and has a low η refraction, and therefore can be used as various optical materials, making a great contribution to industry.

Claims (2)

【特許請求の範囲】[Claims] (1)二価カルボン酸またはその塩化物および下記一般
式( I )で示されるビスフェノールとを重合して得ら
れる光学材料用芳香族ポリエステル。 ▲数式、化学式、表等があります▼( I ) (式中Xは▲数式、化学式、表等があります▼、▲数式
、化学式、表等があります▼、▲数式、化学式、表等が
あります▼ ▲数式、化学式、表等があります▼、▲数式、化学式、
表等があります▼、▲数式、化学式、表等があります▼
で表わされる 二価の有機基)
(1) An aromatic polyester for optical materials obtained by polymerizing a divalent carboxylic acid or its chloride and a bisphenol represented by the following general formula (I). ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (I) (X in the formula is ▲There are mathematical formulas, chemical formulas, tables, etc.▼, ▲There are mathematical formulas, chemical formulas, tables, etc.▼, ▲There are mathematical formulas, chemical formulas, tables, etc.▼ ▲There are mathematical formulas, chemical formulas, tables, etc.▼, ▲Mathematical formulas, chemical formulas,
There are tables, etc. ▼, ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼
(divalent organic group represented by)
(2)二価カルボン酸またはその塩化物がテレフタル酸
塩化物、イソフタル酸塩化物、アジピン酸塩化物または
セバシン酸塩化物の中から選ばれた少なくとも一種の酸
塩化物である特許請求の範囲第(1)項記載の光学材料
用芳香族ポリエステル。
(2) The divalent carboxylic acid or its chloride is at least one acid chloride selected from terephthalic acid chloride, isophthalic acid chloride, adipic acid chloride, or sebacic acid chloride. Aromatic polyester for optical materials as described in (1).
JP61137016A 1986-06-12 1986-06-12 Aromatic polyester for optical material Pending JPS62292830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61137016A JPS62292830A (en) 1986-06-12 1986-06-12 Aromatic polyester for optical material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61137016A JPS62292830A (en) 1986-06-12 1986-06-12 Aromatic polyester for optical material

Publications (1)

Publication Number Publication Date
JPS62292830A true JPS62292830A (en) 1987-12-19

Family

ID=15188852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61137016A Pending JPS62292830A (en) 1986-06-12 1986-06-12 Aromatic polyester for optical material

Country Status (1)

Country Link
JP (1) JPS62292830A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530086A (en) * 1992-07-30 1996-06-25 Kanebo, Ltd. Polyester containing 9,9-bis(4-(2-hydroxyalkoxy)phenyl fluorene
JP2009242589A (en) * 2008-03-31 2009-10-22 Unitika Ltd Film forming resin
JP2010162846A (en) * 2009-01-19 2010-07-29 Sony Corp Optical information recording medium
JP2014205829A (en) * 2013-03-21 2014-10-30 三菱化学株式会社 Resin composition and film using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530086A (en) * 1992-07-30 1996-06-25 Kanebo, Ltd. Polyester containing 9,9-bis(4-(2-hydroxyalkoxy)phenyl fluorene
JP2009242589A (en) * 2008-03-31 2009-10-22 Unitika Ltd Film forming resin
JP2010162846A (en) * 2009-01-19 2010-07-29 Sony Corp Optical information recording medium
JP2014205829A (en) * 2013-03-21 2014-10-30 三菱化学株式会社 Resin composition and film using the same

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