JP2006028287A - 液晶ポリエステル樹脂およびその製造方法 - Google Patents
液晶ポリエステル樹脂およびその製造方法 Download PDFInfo
- Publication number
- JP2006028287A JP2006028287A JP2004207118A JP2004207118A JP2006028287A JP 2006028287 A JP2006028287 A JP 2006028287A JP 2004207118 A JP2004207118 A JP 2004207118A JP 2004207118 A JP2004207118 A JP 2004207118A JP 2006028287 A JP2006028287 A JP 2006028287A
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- Prior art keywords
- polyester resin
- liquid crystal
- crystal polyester
- liquid crystalline
- temperature
- Prior art date
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- Granted
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Images
Classifications
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
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- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G63/605—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds the hydroxy and carboxylic groups being bound to aromatic rings
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
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- C09K19/14—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
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- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- C—CHEMISTRY; METALLURGY
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08J2367/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
Abstract
Description
60≦p≦80
10≦r≦20
10≦q+s≦20
0.05≦s/(q+s)≦0.3
p+q+r+s=100]を提供する。
式[IV]で表される繰返し単位を与える単量体としては、2,6−ナフタレンジカルボン酸、ならびにそのエステル誘導体、酸ハロゲン化物などのエステル形成性の誘導体が挙げられる。
60≦p≦80
10≦r≦20
10≦q+s≦20
0.05≦s/(q+s)≦0.3
p+q+r+s=100。
触媒の具体例としては、ジアルキルスズオキシド(たとえばジブチルスズオキシド)、ジアリールスズオキシドなどの有機スズ化合物;二酸化チタン、三酸化アンチモン、アルコキシチタンシリケート、チタンアルコキシドなどの有機チタン化合物;カルボン酸のアルカリおよびアルカリ土類金属塩(たとえば酢酸カリウム);ルイス酸(たとえばBF3)、ハロゲン化水素(たとえばHCl)などの気体状酸触媒などが挙げられる。
本発明において、プレポリマーとは、上記重縮合反応によって得られ、固相重合反応に供する前の低重合度のポリマーであり、その結晶化温度(以下Tcと記載する)が、Tmax−60℃〜Tmax−5℃であり、その結晶融解温度(以下Tmと記載する)が、Tmax−15℃〜Tmax+20℃のものをいう。好ましくはプレポリマーの結晶化温度は、Tmax−50℃〜Tmax−10℃である。またプレポリマーの結晶融解温度は好ましくは、Tmax−10℃〜Tmax+10℃である。
なお、結晶化温度および結晶融解温度は以下に記載する方法により測定される。
示差走査熱量計としてセイコーインスツルメンツ株式会社製Exstar6000を用い、液晶ポリエステル樹脂の試料を、室温から20℃/分の昇温条件で測定した際に観測される吸熱ピーク温度(Tm1)の観測後、Tm1より20〜50℃高い温度で10分間保持する。ついで、20℃/分の降温条件で室温まで試料を冷却し、その際に観測される発熱ピークのピークトップの温度を液晶ポリエステル樹脂の結晶化温度(Tc)とし、さらに、再度20℃/分の昇温条件で測定した際の吸熱ピークを観測し、そのピークトップを示す温度を液晶ポリエステル樹脂の結晶融解温度(Tm)とする。
固相重合時間は本発明の目的の範囲で特に限定されないが、通常3〜20時間で行われる。
なお、溶融粘度は、以下に記載する方法により測定されるものである。
溶融粘度測定装置(東洋精機(株)製キャピログラフ1A)により、0.7mmφ×10mmのキャピラリーを用いて、液晶ポリエステル樹脂試料のTm+30℃、剪断速度103s−1での粘度を測定し、溶融粘度とする。
板状あるいは粉状の充填剤および/または強化材としては、たとえばタルク、マイカ、グラファイト、ウォラストナイト、炭酸カルシウム、ドロマイト、クレイ、ガラスフレーク、ガラスビーズ、硫酸バリウム、酸化チタンなどが挙げられる。
その他の樹脂成分の配合量は特に限定されず、液晶性樹脂の用途や目的に応じて適宜定めればよい。典型的には本発明の液晶樹脂100重量部に対する他の樹脂成分の合計配合量が1〜200重量部、特に10〜100重量部となる範囲において配合される。
射出成形機(日精樹脂工業(株)製UH1000−110)を用いて長さ127mm、幅3.2mm、厚さ12.7mmの短冊状試験片を成形し、これを用いてASTM D648に準拠し、荷重1.82MPa、昇温速度2℃/分で測定した。
荷重たわみ温度測定に用いた試験片と同じ試験片を用いて、ASTM D790に準拠して測定した。
射出成形機(日精樹脂工業(株)製UH1000−110)を用いてASTM4号ダンベル試験片を成形し、これを用いてASTM D638に準拠して測定した。
射出成形機(日精樹脂工業(株)製UH1000−110)を用いて長さ127mm、幅12.7mm、厚さ0.8mmまたは0.3mmの短冊状試験片を成形し、これを用いてUL94規格に準拠して燃焼試験を行った。試験片5本の第1燃焼と第2燃焼の燃焼時間の合計を全燃焼時間として評価した。
射出成形機(日精樹脂工業(株)製UH1000−110)を用いて図1に示すハーモニカ状金型を用いて成形し、所定のシリンダー温度にて、金型温度100℃、射出圧力157MPa、射出速度200mm/sで樹脂を充填した際の充填率を完充填品との質量割合として算出した。
POB:パラヒドロキシ安息香酸
TPA:テレフタル酸
IPA:イソフタル酸
BP:4,4’−ジヒドロキシビフェニル
NDA:2,6−ナフタレンジカルボン酸
(実施例1)
<低重合度ポリマー製造>
POB211Kg(1529モル)、BP61Kg(328モル)、TPA47Kg(284モル)、NDA9kg(44モル)、無水酢酸232Kg(2271モル)、および酢酸カリウム7g(0.07モル)を、攪拌翼、熱交換器を有する容量1m3のSUS製の重合槽に仕込んだ。窒素ガス雰囲気下に室温〜145℃まで2時間かけて昇温し、同温度で1時間保持した。その後副生する酢酸を留去しながらさらに7時間かけて348℃まで昇温した。同温度で50分重合反応を行った時点で所定のトルクに達したことを確認し重合槽を密閉した。
得られた低重合度ポリマー(即ちプレポリマー)のペレット10Kgを40Lのタンブルドライヤーに槽内の気相部分の温度を200℃とした状態で仕込み、槽内を窒素置換した後120L/時間の窒素気流下に、15rpmで回転させながら1時間かけて槽内気相部分の温度を300℃まで昇温した後に同温度で7時間固相重合を行った。
低重合度ポリマーおよび固相重合された液晶ポリエステル樹脂の各種物性を表1に記載する。
<低重合度ポリマー製造>
POB151Kg(1092モル)、BP102Kg(546モル)、TPA91Kg(546モル)、無水酢酸236Kg(2316モル)、および酢酸カリウム38g(0.4モル)を仕込み、実施例1と同様にして低重合度ポリマーを得た。
得られた低重合度ポリマーペレット10Kgを、実施例1と同様にして330℃で7時間固相重合を行ない、固相重合された液晶ポリエステル樹脂のペレットを得た。固相重合されたペレットは、ペレット同士で融着することなく、容易に固相重合装置から排出可能であった。
低重合度ポリマーおよび固相重合された液晶ポリエステル樹脂の各種物性を表1に記載する。
<低重合度ポリマー製造>
POB181Kg(1310モル)、BP82Kg(437モル)、TPA62Kg(371モル)、IPA11Kg(66モル)、無水酢酸236Kg(2316モル)、および酢酸カリウム37g(0.4モル)を仕込み、実施例1と同様にして低重合度ポリマーを得た。
得られた低重合度ポリマーペレット10Kgを、実施例1と同様にして300℃で7時間固相重合を行ない、固相重合された液晶ポリエステル樹脂のペレットを得た。固相重合されたペレットは、ペレット同士で融着することなく、容易に固相重合装置から排出可能であった。
<低重合度ポリマー製造>
POB211Kg(1529モル)、BP57Kg(306モル)、TPA11Kg(66モル)、NDA52Kg(240モル)、無水酢酸236Kg(2314モル)、および酢酸カリウム37g(0.4モル)を仕込み、実施例1と同様にして低重合度ポリマーを得た。
得られた低重合度ポリマーペレット10Kgを、実施例1と同様にして275℃で7時間固相重合を行ない、固相重合された液晶ポリエステル樹脂のペレットを得た。固相重合されたペレットは、ペレット同士で融着することなく、容易に固相重合装置から排出可能であった。
低重合度ポリマーおよび固相重合された液晶ポリエステル樹脂の各種物性を表1に記載する。
Claims (8)
- 示差走査熱量計により測定される結晶融解温度が、340〜400℃である請求項1に記載の液晶ポリエステル樹脂。
- 請求項1または2に記載の液晶ポリエステル樹脂100重量部に対し、繊維状、板状または粉状の充填剤および/または強化材の1種以上を0.1〜200重量部配合してなる液晶ポリエステル樹脂組成物。
- 充填材および/または強化材が、ガラス繊維である請求項3に記載の液晶ポリエステル樹脂組成物。
- 液晶ポリエステル樹脂組成物の厚さ0.3〜0.8mmの成形品がUL−94規格の難燃レベルV−0を示す請求項3または4の何れかに記載の液晶ポリエステル樹脂組成物。
- 請求項1〜5の何れかに記載の液晶ポリエステル樹脂あるいは液晶ポリエステル樹脂組成物を成形して得られる成形品。
- 請求項1に記載の式[I]〜[IV]で表される繰返し単位を与える単量体を重縮合してプレポリマーのペレットを製造する工程、およびプレポリマーのペレットを250〜350℃において熱処理する工程を含む、液晶ポリエステル樹脂の製造方法。
- ペレットが柱状であり、その断面形状が円形または楕円形であり、断面の直径(断面が楕円形である場合は、断面の長径)が2.5〜4.0mmであり、ペレットの長さが2.5〜5.0mmである、請求項7に記載の液晶ポリエステル樹脂の製造方法。
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2004
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-
2005
- 2005-07-13 DE DE602005000857T patent/DE602005000857T2/de active Active
- 2005-07-13 EP EP05015204A patent/EP1616894B8/en not_active Not-in-force
- 2005-07-13 US US11/179,683 patent/US7304121B2/en not_active Expired - Fee Related
- 2005-07-13 AT AT05015204T patent/ATE359311T1/de not_active IP Right Cessation
- 2005-07-14 KR KR1020050063636A patent/KR101175972B1/ko not_active IP Right Cessation
- 2005-07-14 SG SG200504951A patent/SG119375A1/en unknown
- 2005-07-14 TW TW094123860A patent/TWI370825B/zh not_active IP Right Cessation
- 2005-07-14 CN CNA2005100980477A patent/CN1727439A/zh active Pending
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JPH01294732A (ja) * | 1988-05-20 | 1989-11-28 | Mitsubishi Kasei Corp | 芳香族ポリエステルおよびその製造方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012141272A1 (ja) * | 2011-04-15 | 2012-10-18 | Jx日鉱日石エネルギー株式会社 | 液晶ポリエステルの製造方法 |
JP2012224689A (ja) * | 2011-04-15 | 2012-11-15 | Jx Nippon Oil & Energy Corp | 液晶ポリエステルの製造方法 |
JP2020176174A (ja) * | 2019-04-16 | 2020-10-29 | 上野製薬株式会社 | 液晶ポリエステル樹脂 |
WO2022085454A1 (ja) | 2020-10-22 | 2022-04-28 | コベルコ建機株式会社 | 作業機械に含まれるユニットの組み合わせ |
Also Published As
Publication number | Publication date |
---|---|
EP1616894B1 (en) | 2007-04-11 |
KR101175972B1 (ko) | 2012-08-22 |
TWI370825B (en) | 2012-08-21 |
CN1727439A (zh) | 2006-02-01 |
EP1616894B8 (en) | 2007-08-01 |
DE602005000857T2 (de) | 2007-12-13 |
JP4758079B2 (ja) | 2011-08-24 |
SG119375A1 (en) | 2006-02-28 |
EP1616894A1 (en) | 2006-01-18 |
TW200602377A (en) | 2006-01-16 |
US20060036058A1 (en) | 2006-02-16 |
KR20060050161A (ko) | 2006-05-19 |
ATE359311T1 (de) | 2007-05-15 |
DE602005000857D1 (de) | 2007-05-24 |
US7304121B2 (en) | 2007-12-04 |
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