JP2019528368A - 樹脂安定性及び耐熱性が向上し、透明性を有するポリイミド前駆体樹脂組成物、これを用いたポリイミドフィルムの製造方法、及びこれによって製造されたポリイミドフィルム - Google Patents
樹脂安定性及び耐熱性が向上し、透明性を有するポリイミド前駆体樹脂組成物、これを用いたポリイミドフィルムの製造方法、及びこれによって製造されたポリイミドフィルム Download PDFInfo
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- JP2019528368A JP2019528368A JP2019532897A JP2019532897A JP2019528368A JP 2019528368 A JP2019528368 A JP 2019528368A JP 2019532897 A JP2019532897 A JP 2019532897A JP 2019532897 A JP2019532897 A JP 2019532897A JP 2019528368 A JP2019528368 A JP 2019528368A
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- dianhydride
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- transparent polyimide
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- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
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Abstract
Description
Claims (9)
- 芳香族ジアミン成分、酸二無水物化合物及び有機溶媒を含むポリイミド前駆体樹脂組成物であって、
前記芳香族ジアミン成分(A)はフッ素化芳香族ジアミン単量体である2,2’−ビス(トリフルオロメチル)−4,4’−ジアミノビフェニル(TFMB)、又はアミド基を有するジアミン単量体であるN−(4−アミノフェニル)−4−アミノベンズアミド(DBA)、又はこれらの混合物を含み、
前記酸二無水物化合物(B)はフッ素化芳香族酸二無水物である4,4−(ヘキサフルオロイソプロピリデン)ジフタル酸無水物(6FDA)と非フッ素化芳香族生酸二無水物であるピロメリット酸二無水物(PMDA)、又は3,3,4,4’−ビフェニルテトラカルボン酸二無水物(BPDA)を含む混合物であり、
前記有機溶媒(C)はガンマ−ブチロラクトン(GBL)及びN−メチル−2−ピロリドン(NMP)の混合物、又はガンマ−ブチロラクトン(GBL)及び3−メトキシ−N,N−ジメチルプロパンアミド(DMPA)の混合物、又は3−メトキシ−N,N−ジメチルプロパンアミド(DMPA)単独物であることを特徴とする、樹脂安定性及び高耐熱性が向上した透明ポリイミド前駆体樹脂組成物。 - 前記芳香族ジアミン成分(A)において、
2,2’−ビス(トリフルオロメチル)−4,4’−ジアミノビフェニル(TFMB)は全体ジアミン化合物に対して30〜100モル%であり、
N−(4−アミノフェニル)−4−アミノベンズアミド(DBA)は全体ジアミン化合物に対して5〜50モル%であり、
残量の非フッ素化芳香族ジアミンをさらに含むことを特徴とする、請求項1に記載の樹脂安定性及び高耐熱性が向上した透明ポリイミド前駆体樹脂組成物。 - 前記酸二無水物化合物(B)において、
フッ素化芳香族酸二無水物は全体酸二無水物化合物に対して20〜80モル%であり、
非フッ素化芳香族酸二無水物は全体酸二無水物化合物に対して80〜20モル%であることを特徴とする、請求項1に記載の樹脂安定性及び高耐熱性が向上した透明ポリイミド前駆体樹脂組成物。 - 前記有機溶媒(C)は、ガンマ−ブチロラクトン(GBL)30〜70モル%とN−メチル−2−ピロリドン(NMP)又は3−メトキシ−N,N−ジメチルプロパンアミド(DMPA)70〜30モル%であることを特徴とする、請求項1に記載の樹脂安定性及び高耐熱性が向上した透明ポリイミド前駆体樹脂組成物。
- 前記ポリイミド組成物は、トリメチルアミン(Trimethylamine)、キシレン(Xylene)、ピリジン(Pyridine)及びキノリン(Quinoline)からなる群から選択された1種以上の反応触媒(D)をさらに含むことを特徴とする、請求項1に記載の樹脂安定性及び高耐熱性が向上した透明ポリイミド前駆体樹脂組成物。
- 請求項1〜5のいずれか一項に記載の組成物から製造されたポリアミン酸溶液を熱処理してフィルムに製造することを特徴とする、透明ポリイミド樹脂フィルムの製造方法。
- 前記ポリアミン酸溶液は、固形分含量10〜40wt%の条件を基準に、有機溶媒含量を使い、芳香族ジアミン成分95〜100モル%及び酸二無水物化合物100〜105モル%を混合して製造されたことを特徴とする、請求項6に記載の透明ポリイミド樹脂フィルムの製造方法。
- 前記ポリアミン酸溶液は1000〜7000cPであることを特徴とする、請求項6に記載の透明ポリイミド樹脂フィルムの製造方法。
- 請求項6に記載の方法で製造されたフィルムの厚さ10〜15μmを基準に、ガラス転移温度が300℃以上、100〜300℃範囲での熱膨張係数が25ppm/℃以下、550nmの波長での透過率が85%以上、550nm波長での黄色度指数(Yellow Index、Y.I.)が7以下であることを特徴とする、透明ポリイミド樹脂フィルム。
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