JP5621767B2 - ポリイミドフィルム、これらの製造方法、及び金属積層ポリイミドフィルム - Google Patents
ポリイミドフィルム、これらの製造方法、及び金属積層ポリイミドフィルム Download PDFInfo
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- JP5621767B2 JP5621767B2 JP2011509324A JP2011509324A JP5621767B2 JP 5621767 B2 JP5621767 B2 JP 5621767B2 JP 2011509324 A JP2011509324 A JP 2011509324A JP 2011509324 A JP2011509324 A JP 2011509324A JP 5621767 B2 JP5621767 B2 JP 5621767B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/28—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on an endless belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/08—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique transverse to the direction of feed
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B7/04—Interconnection of layers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1067—Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C18/1601—Process or apparatus
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
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- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
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- B32B2457/08—PCBs, i.e. printed circuit boards
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- General Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
ポリイミド層(a)は、下記化学式(1)の構造を有するジアミンを含むモノマー成分より得られるポリイミドであることを特徴とするポリイミドフィルムに関する。
好ましくは本発明の第一のポリイミドフィルムは、
(i)ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)の自己支持性フィルム上に、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)を塗工し、次いで、このフィルムを、異方性の線膨張係数を有するように、少なくとも1方向に延伸又は収縮させ、加熱して得られたもの、
又は、
(ii)ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)と、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)とを共押出して得られる自己支持性フィルムを、異方性の線膨張係数を有するように、少なくとも1方向に延伸又は収縮させ、加熱して得られたものである。
ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)を支持体にキャスト・乾燥して自己支持性フィルムを製造し、
このポリイミド層(b)を得ることができる自己支持性フィルム上に、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)を塗工し、
その後、ポリイミド前駆体溶液(a)を塗工した自己支持性フィルムを、MD方向とTD方向に異なる線膨張係数を有するフィルムが得られるように、少なくとも1方向に延伸し加熱することを特徴とするポリイミドフィルムの製造方法に関する。
(i)ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)の自己支持性フィルム上に、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)を塗工し、次いで、このフィルムを、異方性の線膨張係数を有するように、少なくとも1方向に延伸又は収縮させ、加熱して得られたものであること、
又は、
(ii)ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)と、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)とを共押出して得られる自己支持性フィルムを、異方性の線膨張係数を有するように、少なくとも1方向に延伸又は収縮させ、加熱して得られたものであること。
1)4,4’−ジアミノジフェニルエーテル、3,4’−ジアミノジフェニルエーテル、3,3’−ジアミノジフェニルエーテルなどのジアミノジフェニルエーテル類、
2)1,3−ビス(3−アミノフェノキシ)ベンゼン、1,4−ビス(3−アミノフェノキシ)ベンゼン、1,3−ビス(4−アミノフェノキシ)ベンゼン、1,4−ビス(4−アミノフェノキシ)ベンゼンなどのビス(アミノフェノキシ)ベンゼン類、
3)4,4’−ビス(4−アミノフェノキシ)ビフェニル、4,4’−ビス(3−アミノフェノキシ)ビフェニルなどのビス(アミノフェノキシ)ビフェニル類、
4)4,4’−ビス(4−アミノフェノキシ)ジフェニルメタン、4,4’−ビス(3−アミノフェノキシ)ジフェニルメタンなどのビス(アミノフェノキシ)ジフェニルメタン類、
5)4,4’−ビス(4−アミノフェノキシ)ジフェニルプロパン、4,4’−ビス(3−アミノフェノキシ)ジフェニルプロパンなどのビス(アミノフェノキシ)ジフェニルプロパン類、
を挙げることができ、これらは単独でも、又は2種以上でも用いることができる。
3,3’,4,4’−ビフェニルテトラカルボン酸二無水物及びピロメリット酸二無水物から選ばれる少なくとも1種の酸成分と、p−フェニレンジアミン、4,4’−ジアミノジフェニルエーテル及び3,4’−ジアミノジフェニルエーテルから選ばれる少なくとも1種のジアミン成分との組み合わせを挙げることができる。
1)単独のポリイミドフィルムの場合に、ガラス転移温度が200℃以上、さらに好ましくは300℃以上か、確認不可能であるもの、
2)特に線膨張係数(50〜200℃)(MD)が5×10−6〜20×10−6cm/cm/℃であるもの、
3)引張弾性率(MD、ASTM−D882)が300kg/mm2以上であるもの、
4)非熱可塑性ポリイミド、
などの特徴を挙げることができる。
(1)3,3’,4,4’−ビフェニルテトラカルボン酸二無水物、ピロメリット酸二無水物及び1,4−ヒドロキノンジベンゾエート−3,3’,4,4’−テトラカルボン酸二無水物より選ばれる成分を少なくとも1種含む酸成分、好ましくはこれらの酸成分を少なくとも70モル%以上、さらに好ましくは80モル%以上、より好ましくは90モル%以上含む酸成分と、
(2)p−フェニレンジアミン、4,4’−ジアミノジフェニルエーテル、m−トリジン及び4,4’−ジアミノベンズアニリドより選ばれる成分を少なくとも1種含むジアミン成分、好ましくはこれらのジアミン成分を少なくとも70モル%以上、さらに好ましくは80モル%以上、より好ましくは90モル%以上含むジアミン成分とから得られるポリイミドなどを用いることができる。
1)3,3’,4,4’−ビフェニルテトラカルボン酸二無水物と、p−フェニレンジアミン或いはp−フェニレンジアミン及び4,4’−ジアミノジフェニルエーテル、
2)3,3’,4,4’−ビフェニルテトラカルボン酸二無水物及びピロメリット酸二無水物と、p−フェニレンジアミン或いはp−フェニレンジアミン及び4,4’−ジアミノジフェニルエーテル、
3)ピロメリット酸二無水物と、p−フェニレンジアミン及び4,4’−ジアミノジフェニルエーテル、
4)3,3’,4,4’−ビフェニルテトラカルボン酸二無水物とp−フェニレンジアミンとを主成分(合計100モル%中の50モル%以上)として得られるものが、プリント配線板、フレキシブルプリント基板、TABテープ等の電子部品の素材として好適に用いられ、広い温度範囲にわたって優れた機械的特性を有し、長期耐熱性を有し、耐加水分解性に優れ、熱分解開始温度が高く、加熱収縮率と線膨張係数が小さく、難燃性に優れるために好ましい。
2,3,3’,4’−ビフェニルテトラカルボン酸二無水物、3,3’,4,4’−ベンゾフェノンテトラカルボン酸二無水物、ビス(3,4−ジカルボキシフェニル)エーテル二無水物、ビス(3,4−ジカルボキシフェニル)スルフィド二無水物、ビス(3,4−ジカルボキシフェニル)スルホン二無水物、ビス(3,4−ジカルボキシフェニル)メタン二無水物、2,2−ビス(3,4−ジカルボキシフェニル)プロパン二無水物、2,2−ビス(3,4−ジカルボキシフェニル)−1,1,1,3,3,3−ヘキサフルオロプロパン二無水物、2,2−ビス[(3,4−ジカルボキシフェノキシ)フェニル]プロパン二無水物、などの酸二無水物成分を用いることができる。
m−フェニレンジアミン、3,4’−ジアミノジフェニルエーテル、3,3’−ジアミノジフェニルスルフィド、3,4’−ジアミノジフェニルスルフィド、4,4’−ジアミノジフェニルスルフィド、3,3’−ジアミノジフェニルスルホン、3,4’−ジアミノジフェニルスルホン、4,4’−ジアミノジフェニルスルホン、3,3’−ジアミノベンゾフェノン、4,4’−ジアミノベンゾフェノン、3,4’−ジアミノベンゾフェノン、3,3’−ジアミノジフェニルメタン、4,4’−ジアミノジフェニルメタン、3,4’−ジアミノジフェニルメタン、2,2−ジ(3−アミノフェニル)プロパン、2,2−ジ(4−アミノフェニル)プロパン、などのジアミン成分を用いることができる。
1)ポリイミド層(b)が得られるポリイミド前駆体溶液(b)を支持体にキャストし乾燥して自己支持性フィルムを得て、得られる自己支持性フィルムに、ポリイミド層(a)が得られるポリイミド溶液(a)またはポリイミド前駆体溶液(a)を塗工する第一工程と、塗工フィルムを、少なくとも1方向に延伸し、加熱してイミド化する第二工程を含む方法、
又は、
2)ポリイミド層(b)が得られるポリイミド溶液(b)またはポリイミド前駆体溶液(b)と、ポリイミド層(a)が得られるポリイミド溶液(a)またはポリイミド前駆体溶液(a)とをダイなどを用いて共押出により支持体にキャストし乾燥して自己支持性フィルムを得る第一工程と、自己支持性フィルムを、少なくとも1方向に延伸し、加熱して必要ならイミド化する第二工程を含む方法、
などを挙げることができる。
単層又は複層の押出形成用ダイスが設置された製膜装置を使用して、まず、前記ダイスに、1種又は複数の種類のポリイミド前駆体の溶媒溶液を供給し、ダイスの吐出口(リップ部)から単層又は複層の薄膜状体として支持体(エンドレスベルトやドラムなど)上に押出して、ポリイミド前駆体の溶媒溶液の略均一な厚さの薄膜を形成し、キャスティング炉の内部で、支持体(エンドレスベルトやドラムなど)を移動させながらポリイミド前駆体のイミド化が完全には進まない温度、好ましくは50〜210℃、さらに好ましくは60〜200℃であり、かつ有機溶媒の一部又は大部分が除去できる温度に加熱して、溶媒を徐々に除去することにより、自己支持性になるまで前乾燥を行い、得られた自己支持性フィルムを支持体から剥離する、
などを挙げることができる。
また、上記の自己支持性フィルムのイミド化率は、IR(ATR)で測定し、フィルムとフルキュア品との振動帯ピーク面積の比を利用して、イミド化率を算出することができる。振動帯ピークとしては、イミドカルボニル基の対称伸縮振動帯やベンゼン環骨格伸縮振動帯などを利用する。またイミド化率測定に関し、特開平9−316199号公報に記載のカールフィッシャー水分計を用いる手法もある。
完全にイミド化が進んだフィルムは、480℃、5分間加熱したものである。また、フィルムは、キャストした支持体側をA面、気体側をB面とする。
1560.13cm−1〜1432.85cm−1のピーク面積をX1、
1798.30cm−1〜1747.19cm−1のピーク面積をX2として、
自己支持性フィルムのA面側の面積比(X1/X2)をa1、
自己支持性フィルムのB面側の面積比(X1/X2)をb1、
完全にイミド化が進んだフィルムのA面側の面積比(X1/X2)をa2、
完全にイミド化が進んだフィルムのB面側の面積比(X1/X2)をb2とする。
(基体のポリイミド前駆体溶液の合成)
3,3’,4,4’−ビフェニルテトラカルボン酸二無水物(s−BPDA)と当モル量のp−フェニレンジアミン(PPD)とをN,N−ジメチルアセトアミド中で、30℃、3時間重合して、18質量%濃度のポリアミック酸溶液を得た。このポリアミック酸溶液に、ポリアミック酸100質量部に対して0.1質量部のモノステアリルリン酸エステルトリエタノールアミン塩、次いでポリアミック酸100質量部に対して0.5質量部のシリカフィラー(平均粒径0.08μm、日産化学社製ST−ZL)を添加して均一に混合して、ポリイミド前駆体溶液(X)を得た。
(表面塗工用のポリイミド前駆体溶液の合成)
3,3’,4,4’−ビフェニルテトラカルボン酸二無水物と当モル量の4,4’−ジアミノジフェニルエーテル(DADE)とをN,N−ジメチルアセトアミド中で、30℃、3時間重合して、3.0質量%濃度のポリアミック酸溶液を得た。このポリアミック酸溶液に、さらにポリアミック酸100質量部に対して0.5質量部のシリカフィラー(平均粒径0.08μm、日産化学社製ST−ZL)を添加した後、均一に混合して、ポリイミド前駆体溶液(Y)を得た。
(延伸ポリイミドフィルムの製造)
ベースフィルム用ドープとして得られた参考例1のポリイミド前駆体溶液(X)を、加熱乾燥後のフィルム厚みが35μmになるようにステンレス基板(支持体)上に連続的に流延し、140℃の熱風で乾燥を行い、支持体から剥離して自己支持性フィルムを得た。この自己指示性フィルムの支持体に接した面に、参考例2のポリイミド前駆体溶液(Y)を乾燥後の厚みが0.5μmとなるようにダイコーターを用いて塗工し、塗工後の自己支持性フィルムを加熱炉で加熱する際に、幅方向に7%延伸させながら加熱炉で200℃から575℃に徐々に昇温して溶媒を除去し、イミド化を行って延伸ポリイミドフィルムを得た。延伸ポリイミドフィルムの線膨張係数を測定し、結果を表1に示す。延伸ポリイミドフィルムは連続して製造した。
延伸ポリイミドフィルムのポリイミド前駆体溶液の塗工側に、プラズマ処理によりポリイミドフィルムの表面をクリーニングした後、金属層として、クロム濃度が15重量%のニッケルクロム合金層を、スパッタリング法によって5nmの膜厚に形成した。続いて銅層を、スパッタリング法によって300nmの膜厚に形成した後に、電解銅メッキ法によって銅メッキ層を20μmの厚みになるように形成し、銅メッキ積層ポリイミドフィルムを得た。銅メッキ積層ポリイミドフィルムの銅メッキ層とポリイミドとの密着強度(90°ピール強度)を測定し、結果を表1に示す。
実施例1の延伸ポリイミドフィルムの製造において、参考例2のポリイミド前駆体溶液(Y)を塗工する代わりに、ポリイミド前駆体を含まない3質量%のγ―フェニルアミノプロピルトリメトキシシランを含むN,N−ジメチルアセトアミドを7g/m2の量を塗工した以外は、実施例1と同様にして、延伸ポリイミドフィルムを製造した。延伸ポリイミドフィルムの線膨張係数を測定し、結果を表1に示す。
ベースフィルム用ドープとして得られた参考例1のポリイミド前駆体溶液(X)を、加熱乾燥後のフィルム厚みが35μmになるようにステンレス基板(支持体)上に連続的に流延し、140℃の熱風で乾燥を行い、支持体から剥離して自己支持性フィルムを得た。この自己指示性フィルムの支持体に接した面に、ポリイミド前駆体を含まない3質量%のγ―フェニルアミノプロピルトリメトキシシランを含むN,N−ジメチルアセトアミドを7g/m2の量をダイコーターを用いて塗工し乾燥し、塗工後の自己支持性フィルムを加熱炉で200℃から575℃に徐々に昇温して溶媒を除去し、イミド化を行って未延伸ポリイミドフィルムを得た。未延伸ポリイミドフィルムの線膨張係数を測定し、結果を表1に示す。未延伸ポリイミドフィルムは連続して製造した。
Claims (8)
- 異方性の線膨張係数を有し、ポリイミド層(b)の片面又は両面にポリイミド層(a)が積層されたメタライジング用ポリイミドフィルムであり、
ポリイミド層(a)は、3,3’,4,4’−ビフェニルテトラカルボン酸二無水物を50〜100モル%含む酸成分と、ジアミノジフェニルエーテルを85〜100モル%含むジアミン成分とから得られるポリイミドを含むことを特徴とするポリイミドフィルム。 - (i)ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)の自己支持性フィルム上に、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)を塗工し、次いで、このフィルムを、異方性の線膨張係数を有するように、少なくとも1方向に延伸又は収縮させ、加熱して得られたものであること、
又は、
(ii)ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)と、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)とを共押出して得られる自己支持性フィルムを、異方性の線膨張係数を有するように、少なくとも1方向に延伸又は収縮させ、加熱して得られたものであること、
を特徴とする請求項1に記載のポリイミドフィルム。 - MD方向の線膨張係数(LMD)とTD方向の線膨張係数(LTD)とが、|(LMD−LTD)|>5ppmの関係であることを特徴とする請求項1または請求項2に記載のポリイミドフィルム。
- ポリイミド層(a)の厚みが、0.05〜2μmであることを特徴とする請求項1〜3のいずれか1項に記載のポリイミドフィルム。
- ポリイミド層(a)の表面に、メタライジング法により金属層を積層して用いることを特徴とする請求項1〜4のいずれか1項に記載のポリイミドフィルム。
- 請求項1〜5のいずれか1項に記載のポリイミドフィルムのポリイミド層(a)の表面に、メタライジング法により金属層を積層したことを特徴とする金属積層ポリイミドフィルム。
- 請求項1〜5のいずれか1項に記載のポリイミドフィルムの製造方法であり、
ポリイミド層(b)を得ることができるポリイミド前駆体溶液(b)を支持体にキャスト・乾燥して自己支持性フィルムを製造し、
このポリイミド層(b)を得ることができる自己支持性フィルム上に、ポリイミド層(a)を得ることができるポリイミド前駆体溶液(a)を塗工し、
その後、ポリイミド前駆体溶液(a)を塗工した自己支持性フィルムを、MD方向とTD方向に異なる線膨張係数を有するフィルムが得られるように、少なくとも1方向に延伸し加熱することを特徴とするポリイミドフィルムの製造方法。 - 請求項6に記載の金属積層ポリイミドフィルムの金属層に、金属メッキ法により金属メッキ層を設けたことを特徴とする金属メッキ積層ポリイミドフィルム。
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| US7128843B2 (en) * | 2003-04-04 | 2006-10-31 | Hrl Laboratories, Llc | Process for fabricating monolithic membrane substrate structures with well-controlled air gaps |
| JP5928129B2 (ja) * | 2012-04-25 | 2016-06-01 | Jnc株式会社 | インクジェットインク |
| CN104151822A (zh) * | 2013-05-14 | 2014-11-19 | 昆山杉木电子科技有限公司 | 一种聚酰亚胺薄膜的制备方法 |
| JP6411478B2 (ja) * | 2014-05-12 | 2018-10-24 | 株式会社Screenホールディングス | ポリイミドフィルムの製造方法、電子機器の製造方法および塗膜の剥離方法 |
| CN111113754B (zh) * | 2019-11-22 | 2020-12-04 | 桂林电器科学研究院有限公司 | 一种提高聚酰胺酸薄膜边部强度的方法 |
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| JP2002192674A (ja) * | 2000-10-20 | 2002-07-10 | Toray Ind Inc | 積層フィルム及びその製造方法 |
| WO2006011404A1 (ja) * | 2004-07-27 | 2006-02-02 | Kaneka Corporation | 接着フィルムおよびその利用 |
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| US4863808A (en) * | 1985-09-13 | 1989-09-05 | Gould Inc. | Copper-chromium-polyimide composite |
| CN100562427C (zh) * | 2004-07-27 | 2009-11-25 | 株式会社钟化 | 粘接膜及其应用 |
| TWI279008B (en) * | 2005-12-26 | 2007-04-11 | Ind Tech Res Inst | Thin film transistor, device electrode thereof and method of forming the same |
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- 2010-04-14 CN CN201080026427.9A patent/CN102458849B/zh active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002192674A (ja) * | 2000-10-20 | 2002-07-10 | Toray Ind Inc | 積層フィルム及びその製造方法 |
| WO2006011404A1 (ja) * | 2004-07-27 | 2006-02-02 | Kaneka Corporation | 接着フィルムおよびその利用 |
Also Published As
| Publication number | Publication date |
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| KR20120029380A (ko) | 2012-03-26 |
| US20120034455A1 (en) | 2012-02-09 |
| TW201114806A (en) | 2011-05-01 |
| TWI481645B (zh) | 2015-04-21 |
| CN102458849B (zh) | 2015-01-21 |
| JPWO2010119907A1 (ja) | 2012-10-22 |
| WO2010119907A1 (ja) | 2010-10-21 |
| KR101733254B1 (ko) | 2017-05-08 |
| CN102458849A (zh) | 2012-05-16 |
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