WO2019131884A1 - フレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物 - Google Patents
フレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物 Download PDFInfo
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- WO2019131884A1 WO2019131884A1 PCT/JP2018/048158 JP2018048158W WO2019131884A1 WO 2019131884 A1 WO2019131884 A1 WO 2019131884A1 JP 2018048158 W JP2018048158 W JP 2018048158W WO 2019131884 A1 WO2019131884 A1 WO 2019131884A1
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- WIPO (PCT)
- Prior art keywords
- resin composition
- flexible device
- precursor resin
- polyimide precursor
- polyimide
- Prior art date
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- 239000000758 substrate Substances 0.000 title claims abstract description 118
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- 239000011342 resin composition Substances 0.000 title claims abstract description 90
- 229920005575 poly(amic acid) Polymers 0.000 claims abstract description 63
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- 150000000000 tetracarboxylic acids Chemical class 0.000 claims abstract description 26
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- WKDNYTOXBCRNPV-UHFFFAOYSA-N bpda Chemical compound C1=C2C(=O)OC(=O)C2=CC(C=2C=C3C(=O)OC(C3=CC=2)=O)=C1 WKDNYTOXBCRNPV-UHFFFAOYSA-N 0.000 claims abstract description 12
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- 238000000034 method Methods 0.000 claims description 20
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- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000001177 diphosphate Substances 0.000 description 3
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 3
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- 239000004065 semiconductor Substances 0.000 description 3
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- KMKWGXGSGPYISJ-UHFFFAOYSA-N 4-[4-[2-[4-(4-aminophenoxy)phenyl]propan-2-yl]phenoxy]aniline Chemical compound C=1C=C(OC=2C=CC(N)=CC=2)C=CC=1C(C)(C)C(C=C1)=CC=C1OC1=CC=C(N)C=C1 KMKWGXGSGPYISJ-UHFFFAOYSA-N 0.000 description 1
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
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- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
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- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
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- 229910021529 ammonia Inorganic materials 0.000 description 1
- KSQMWIGJIDTOFT-UHFFFAOYSA-N anthracene-1,9-dicarboxylic anhydride Chemical compound C1=CC(C(=O)OC2=O)=C3C2=C(C=CC=C2)C2=CC3=C1 KSQMWIGJIDTOFT-UHFFFAOYSA-N 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- IDVDAZFXGGNIDQ-UHFFFAOYSA-N benzo[e][2]benzofuran-1,3-dione Chemical compound C1=CC2=CC=CC=C2C2=C1C(=O)OC2=O IDVDAZFXGGNIDQ-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 239000001191 butyl (2R)-2-hydroxypropanoate Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
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- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- FRXGWNKDEMTFPL-UHFFFAOYSA-N dioctadecyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCCCCCC FRXGWNKDEMTFPL-UHFFFAOYSA-N 0.000 description 1
- HTDKEJXHILZNPP-UHFFFAOYSA-N dioctyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OCCCCCCCC HTDKEJXHILZNPP-UHFFFAOYSA-N 0.000 description 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 1
- CYFHLEMYBPQRGN-UHFFFAOYSA-N ditetradecyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCC CYFHLEMYBPQRGN-UHFFFAOYSA-N 0.000 description 1
- CBLAIDIBZHTGLV-UHFFFAOYSA-N dodecane-2,11-diamine Chemical compound CC(N)CCCCCCCCC(C)N CBLAIDIBZHTGLV-UHFFFAOYSA-N 0.000 description 1
- TVACALAUIQMRDF-UHFFFAOYSA-N dodecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCOP(O)(O)=O TVACALAUIQMRDF-UHFFFAOYSA-N 0.000 description 1
- ODQWQRRAPPTVAG-GZTJUZNOSA-N doxepin Chemical compound C1OC2=CC=CC=C2C(=C/CCN(C)C)/C2=CC=CC=C21 ODQWQRRAPPTVAG-GZTJUZNOSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- PWSKHLMYTZNYKO-UHFFFAOYSA-N heptane-1,7-diamine Chemical compound NCCCCCCCN PWSKHLMYTZNYKO-UHFFFAOYSA-N 0.000 description 1
- ZUVCYFMOHFTGDM-UHFFFAOYSA-N hexadecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCOP(O)(O)=O ZUVCYFMOHFTGDM-UHFFFAOYSA-N 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 description 1
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 description 1
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229940018564 m-phenylenediamine Drugs 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- CZRKJHRIILZWRC-UHFFFAOYSA-N methyl acetate;propane-1,2-diol Chemical compound COC(C)=O.CC(O)CO CZRKJHRIILZWRC-UHFFFAOYSA-N 0.000 description 1
- 229940057867 methyl lactate Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- AJFDBNQQDYLMJN-UHFFFAOYSA-N n,n-diethylacetamide Chemical compound CCN(CC)C(C)=O AJFDBNQQDYLMJN-UHFFFAOYSA-N 0.000 description 1
- BXSZBTFVSMMJQG-UHFFFAOYSA-N naphtho[2,3-e][2]benzofuran-1,3-dione Chemical compound C1=CC2=CC3=CC=CC=C3C=C2C2=C1C(=O)OC2=O BXSZBTFVSMMJQG-UHFFFAOYSA-N 0.000 description 1
- AJXNLGUENUIIRW-UHFFFAOYSA-N naphtho[2,3-f][2]benzofuran-1,3-dione Chemical compound C1=CC=C2C=C(C=C3C(=O)OC(=O)C3=C3)C3=CC2=C1 AJXNLGUENUIIRW-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 1
- VQXBKCWOCJSIRT-UHFFFAOYSA-N octadecane-1,12-diamine Chemical compound CCCCCCC(N)CCCCCCCCCCCN VQXBKCWOCJSIRT-UHFFFAOYSA-N 0.000 description 1
- UHGIMQLJWRAPLT-UHFFFAOYSA-N octadecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCCCOP(O)(O)=O UHGIMQLJWRAPLT-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- UJDCDJDPWCGFTO-UHFFFAOYSA-N phosphono hexanoate Chemical compound CCCCCC(=O)OP(O)(O)=O UJDCDJDPWCGFTO-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- KRIXEEBVZRZHOS-UHFFFAOYSA-N tetradecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCCCOP(O)(O)=O KRIXEEBVZRZHOS-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0209—Multistage baking
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
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Definitions
- the present invention relates to a polyimide precursor resin composition for forming a flexible device substrate, a laminate using the same, a flexible device, and a method for producing the laminate.
- glass substrates have been used for electronic devices such as liquid crystal display elements and flat panel displays using organic EL display elements, but when glass is thinned for weight reduction, the problem is that the strength is insufficient and the glass is fragile There is.
- a lightweight and flexible plastic substrate has been developed as a substitute for a glass substrate, and the development of flexible devices using this into various applications is expected.
- Polyimide which is a resin material that can be easily reduced in weight and thickness, is suitable for a plastic substrate, and various polyimides have been proposed.
- a polyimide film is formed on a carrier substrate such as glass to fabricate a flexible device substrate.
- a barrier layer and a polyimide film may be further formed on a polyimide film, and a flexible device substrate may be produced.
- a semiconductor element such as a TFT is fabricated on the flexible device substrate thus obtained.
- the polyimide film is required to be firmly laminated on a carrier substrate or a barrier layer.
- polyimide films are also required to have high heat resistance that can withstand high temperature conditions at the time of device manufacture.
- Patent Documents 1 and 2 propose a method of manufacturing a laminate of a polyimide film and a carrier substrate.
- Patent Documents 3 and 4 in order to improve the adhesion between a support and a polyimide film, a polyimide precursor to which an alkoxysilane compound is added or reacted is proposed.
- Patent Document 5 proposes a technique for treating a carrier substrate with a silane coupling agent.
- Patent Document 6 proposes a polyamic acid whose terminal is modified with an acid monoanhydride.
- Patent Document 7 proposes a polyamic acid whose terminal is modified with an aromatic dicarboxylic acid anhydride.
- Patent No. 5650458 gazette Patent No. 6206446 International Publication No. 2013/125194 International Publication No. 2016/024457 Patent No. 586 2 866 Patent No. 4853534 International Publication No. 2017/204186
- the polyimide films described in Patent Documents 1 and 2 have a problem of low adhesion to the carrier substrate and peeling.
- the polyimide precursor solutions described in Patent Documents 3 to 5 lack stability, and the resulting polyimide film does not have adhesion that can withstand high temperature conditions during device manufacture, and the reliability of the flexible device is impaired.
- the polyamic acid described in Patent Document 6 is improved in viscosity stability and mechanical strength and toughness at the time of imidization, but peeling strength is not improved.
- the polyimide film described in Patent Document 7 is used not as a flexible device substrate but as a peeling layer of a glass substrate. As a matter of course, in the flexible device substrate and the peeling layer, the required physical properties and the criteria thereof are largely different.
- the polyimide film used for the flexible device substrate is required to improve the peel strength to the carrier substrate.
- An object of the present invention is to provide a polyimide precursor resin composition for forming a flexible device substrate capable of obtaining a polyimide film having high peel strength to a substrate while securing mechanical physical properties required for flexible device applications. It is.
- a polyimide precursor resin composition for forming a flexible device substrate comprising: a diamine component containing at least one of a diamine and 4,4'-diaminodiphenyl ether; and a polyamic acid having a structure obtained from a carboxylic acid monoanhydride.
- a laminate comprising a polyimide film obtained from the polyimide precursor resin composition for forming a flexible device substrate according to any one of items 1 to 4 and a glass substrate. 6.
- a flexible device substrate comprising a polyimide film obtained from the polyimide precursor resin composition for forming a flexible device substrate according to any one of items 1 to 4. 7.
- a flexible device substrate comprising an inorganic film containing an inorganic material selected from the group consisting of 8. Item 8.
- a process for producing a laminate comprising: flowing a polyimide precursor resin composition for forming a flexible device substrate containing a polyamic acid on a substrate; and imidizing the polyamic acid by heat treatment to form a polyimide film.
- a tetracarboxylic acid comprising at least one of 3,3 ′, 4,4′-biphenyltetracarboxylic acid dianhydride and pyromellitic dianhydride, wherein the polyamic acid satisfies the following formula (1) and the following formula (2)
- a method for producing a laminate which is a polyamic acid having a structure obtained from an acid component, a diamine component containing at least one of paraphenylene diamine and 4,4'-diaminodiphenyl ether, and a carboxylic acid monoanhydride.
- Formula (1) 0.97 ⁇ X / Y ⁇ 1.00
- Formula (2) 0.5 ⁇ (Z / 2) / (Y ⁇ X) ⁇ 1.05
- X represents the number of moles of the tetracarboxylic acid component
- Y represents the number of moles of the diamine component
- Z represents the number of moles of the carboxylic acid monoanhydride.
- substrate formation which can obtain the polyimide film which has high peeling strength with respect to a board
- the polyimide film obtained from the polyimide precursor resin composition for flexible device substrate formation of this invention can be used suitably for a flexible device substrate. Furthermore, viscosity stability improves the polyimide precursor resin composition for flexible device board
- the polyamic acid is a tetracarboxylic acid component containing at least one of 3,3 ′, 4,4′-biphenyltetracarboxylic acid dianhydride and pyromellitic acid dianhydride, paraphenylene diamine and 4,4′-diaminodiphenyl ether. It has a structure obtained from a diamine component containing at least one side and a carboxylic acid monoanhydride.
- the main chain of the polyamic acid having this structure is a tetracarboxylic acid component containing at least one of 3,3 ′, 4,4′-biphenyltetracarboxylic acid dianhydride and pyromellitic acid dianhydride; It is a polymer with a diamine component containing at least one of 4,4′-diaminodiphenyl ether, and in at least a part of polyamic acid, the end of the main chain is capped with a carboxylic acid monoanhydride.
- the amount of 3,3 ′, 4,4′-biphenyltetracarboxylic acid dianhydride in the tetracarboxylic acid component is preferably 40 mol% or more. More preferably, it is 60 mol% or more, more preferably 80 mol% or more, and may be 100 mol%.
- the amount of pyromellitic dianhydride in the tetracarboxylic acid component is preferably 5 mol% or more, more preferably 10 mol% or more.
- the amount of pyromellitic dianhydride in the tetracarboxylic acid component is preferably 40 mol% or less, more preferably 20 mol% or less. Further, the total amount of 3,3 ′, 4,4′-biphenyltetracarboxylic acid dianhydride and pyromellitic acid dianhydride in the tetracarboxylic acid component is preferably 40 mol% or more, more preferably 60 mol% or more. More preferably, it is 80 mol% or more, and 100 mol% may be sufficient.
- the amount of paraphenylene diamine in the diamine component is preferably 40 mol% or more, more preferably 60 mol% or more, and still more preferably 80 mol% or more, and 100 mol% It may be.
- the amount of 4,4'-diaminodiphenyl ether in the diamine component is preferably 5 mol% or more, more preferably 10 mol% or more.
- the amount of 4,4'-diaminodiphenyl ether in the diamine component is preferably at most 60 mol%, more preferably at most 40 mol%, particularly preferably at most 20 mol%.
- the diamine component may consist of paraphenylene diamine and / or 4,4'-diaminodiphenyl ether.
- the total amount of paraphenylene diamine and 4,4'-diaminodiphenyl ether in the diamine component is preferably 40 mol% or more, more preferably 60 mol% or more, still more preferably 80 mol% or more, and 100 mol% It may be.
- tetracarboxylic acid dianhydrides and diamines can also be used as long as the properties of the present invention are not impaired.
- the additional tetracarboxylic acid dianhydride is not particularly limited, but aromatic tetracarboxylic acid dianhydride and alicyclic tetracarboxylic acid dianhydride are preferable in view of the properties of the resulting polyimide.
- the above-mentioned tetracarboxylic acid dianhydride does not have to be one kind, and may be a mixture of plural kinds.
- the additional diamine includes, but is not limited to, 4,4'-diaminodiphenylmethane, m-phenylenediamine, 2,4-diaminotoluene, 1,3-bis (4-aminophenoxy) benzene, 1,4 -Bis (4-aminophenoxy) benzene, 2,2-bis [4- (4-aminophenoxy) phenyl] propane, m-xylylenediamine, p-xylylenediamine, 2,2-bis [4- (4) -Aminophenoxy) phenyl] propane, 4,4'-methylenebis (2,6-xylidine), aromatic diamines such as ⁇ , ⁇ '-bis (4-aminophenyl) -1,4-diisopropylbenzene, hexamethylene Diamine, heptamethylenediamine, octamethylenediamine, nonamethylenediamine, decamethylenediamine, diamino
- the carboxylic acid monoanhydride is used for end capping of the polyamic acid obtained by reacting the tetracarboxylic acid component with the diamine component.
- the polyimide film end-capped with carboxylic acid monoanhydride is excellent in adhesion to the carrier substrate and the barrier layer.
- the reliability and the electrical characteristics of the produced flexible device may be improved.
- the carboxylic acid monoanhydride is not particularly limited, and may be an aromatic carboxylic acid monoanhydride or an aliphatic carboxylic acid monoanhydride. In particular, aromatic carboxylic acid monoanhydrides are preferred.
- the carboxylic acid monoanhydride does not contain other functional groups such as a hydroxyl group, a carbonyl group, a carboxyl group and an amino group, and for example, a dicarboxylic acid monoanhydride is preferable.
- the aromatic carboxylic acid monoanhydride preferably has an aromatic ring having 6 to 30 carbon atoms, more preferably one having an aromatic ring having 6 to 15 carbon atoms, and one having an aromatic ring having 6 to 10 carbon atoms More preferable.
- carboxylic acid monoanhydrides include phthalic anhydride, 2,3-benzophenonedicarboxylic acid anhydride, 3,4-benzophenonedicarboxylic acid anhydride, 1,2-naphthalenedicarboxylic acid anhydride, 2,3-naphthalenedicarboxylic acid Acid anhydride, 1,8-naphthalenedicarboxylic acid anhydride, 1,2-anthracene dicarboxylic acid anhydride, 2,3-anthracene dicarboxylic acid anhydride, 1,9-anthracene dicarboxylic acid anhydride, trimellitic anhydride etc.
- Aromatic carboxylic acid monoanhydrides and alicyclic carboxylic acid monoanhydrides such as maleic anhydride, succinic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, itaconic anhydride and the like can be mentioned. Among these, phthalic anhydride is preferred.
- the carboxylic acid mono-anhydride may be a carboxylic acid mono-anhydride having an ethynyl group such as phenylethynylphthalic anhydride. Carboxylic acid monoanhydrides having ethynyl groups are preferred for specific applications.
- the heat resistance of the polyimide may decrease due to the ethynyl group, and it is preferable that the ethynyl group-containing carboxylic acid monoanhydride is not included in a specific application.
- the molar ratio of each of the tetracarboxylic acid component, the diamine component, and the carboxylic acid monoanhydride satisfies the following formulas (1) and (2).
- Formula (1) 0.97 ⁇ X / Y ⁇ 1.00
- Formula (2) 0.5 ⁇ (Z / 2) / (Y ⁇ X) ⁇ 1.05
- X is the number of moles of the tetracarboxylic acid component
- Y is the number of moles of the diamine component
- Z is the number of moles of the carboxylic acid monoanhydride.
- X / Y When X / Y is 0.97 or more, the molecular weight of the polyamic acid is increased, and the strength and heat resistance of the resulting polyimide film are improved.
- X / Y is preferably 0.98 or more.
- X / Y When X / Y is less than 1.00, the diamine component is excessive to the tetracarboxylic acid component. By this, it is possible to form an amino group that can be endcapped with carboxylic acid monoanhydride.
- X / Y is preferably 0.99 or less.
- (Z / 2) / (YX) represents a molar ratio of carboxylic acid monoanhydride to an end cappable amino group.
- X / Y is less than 1.00 and (Z / 2) / (Y ⁇ X) is 0.5 or more, the end capping ratio of polyamic acid can be increased, and the resulting polyimide film Adhesion can be improved.
- (Z / 2) / (YX) be closer to 1.
- (Z / 2) / (YX) is preferably 0.6 or more, more preferably 0.7 or more.
- (Z / 2) / (YX) is 1.05 or less, the amount of free carboxylic acid monoanhydride can be reduced, and the strength of the resulting polyimide film can be increased.
- (Z / 2) / (YX) is preferably 1.03 or less, more preferably 1.01 or less.
- the logarithmic viscosity of the polyamic acid is not particularly limited, but the logarithmic viscosity in an N-methyl-2-pyrrolidone solution having a concentration of 0.5 g / dL at 30 ° C. is 0.2 dL / g or more, preferably 0. It is preferable that it is 4 dL / g or more.
- the logarithmic viscosity is 0.2 dL / g or more, the molecular weight of the polyamic acid is high, and the mechanical strength and heat resistance of the resulting polyimide are excellent.
- the logarithmic viscosity in a 0.5 g / dL solution of N-methyl-2-pyrrolidone at 30 ° C. is generally 4.0 dL / g or less.
- an imidization catalyst an organic phosphorus-containing compound, inorganic fine particles and the like may be added to the polyimide precursor resin composition.
- a substituted or unsubstituted nitrogen-containing heterocyclic compound As the imidation catalyst, a substituted or unsubstituted nitrogen-containing heterocyclic compound, an N-oxide compound of the nitrogen-containing heterocyclic compound, a substituted or unsubstituted amino acid compound, an aromatic hydrocarbon compound having a hydroxyl group or an aromatic complex Cyclic compounds, in particular, lower ones such as 1,2-dimethylimidazole, N-methylimidazole, N-benzyl-2-methylimidazole, 2-methylimidazole, 2-ethyl-4-methylimidazole, 5-methylbenzimidazole Alkylimidazole, benzimidazole such as N-benzyl-2-methylimidazole, isoquinoline, 3,5-dimethylpyridine, 3,4-dimethylpyridine, 2,5-dimethylpyridine, 2,4-dimethylpyridine, 4-n- Substituted pyridine such as propylpyridine It can be used to apply
- the amount of the imidization catalyst used is preferably about 0.01 to 2 equivalents, and more preferably 0.02 to 1 equivalents, with respect to the amic acid unit of the polyamic acid.
- the use of the imidization catalyst may improve the physical properties of the resulting polyimide film, in particular, the elongation and tear resistance.
- organic phosphorus-containing compound examples include monocaproyl phosphate, monooctyl phosphate, monolauryl phosphate, monomyristyl phosphate, monocetyl phosphate, monostearyl phosphate, triethylene glycol monotridecyl Monophosphates of ether, monophosphates of tetraethylene glycol monolauryl ether, monophosphates of diethylene glycol monostearyl ether, dicaproyl phosphate, dioctyl phosphate, dicapryl phosphate, dilauryl phosphate, dimyristyl phosphate, Disetyl phosphate, distearyl phosphate, diphosphate of tetraethylene glycol mononeopentyl ether, trie Diphosphate of glycol mono tridecyl ether, diphosphate of tetraethyleneglycol monolauryl ether, and phosphoric acid esters such as diethylene glycol diphosphate of monostearyl
- amine As an amine, ammonia, monomethylamine, monoethylamine, monopropylamine, monobutylamine, dimethylamine, diethylamine, dipropylamine, dibutylamine, dibutylamine, trimethylamine, triethylamine, tripropylamine, tributylamine, tributylamine, monoethanolamine, diethanolamine, triethanolamine Etc.
- inorganic fine particles fine particles of titanium dioxide powder, silicon dioxide (silica) powder, magnesium oxide powder, aluminum oxide (alumina) powder, inorganic oxide powders such as zinc oxide powder, fine particles of silicon nitride powder, titanium nitride powder And inorganic carbide powder such as silicon carbide powder, and inorganic salt powder such as fine particle calcium carbonate powder, calcium sulfate powder and barium sulfate powder.
- inorganic fine particles fine particles of titanium dioxide powder, silicon dioxide (silica) powder, magnesium oxide powder, aluminum oxide (alumina) powder, inorganic oxide powders such as zinc oxide powder, fine particles of silicon nitride powder, titanium nitride powder And inorganic carbide powder such as silicon carbide powder, and inorganic salt powder such as fine particle calcium carbonate powder, calcium sulfate powder and barium sulfate powder.
- the polyimide precursor resin composition preferably does not include a silane coupling agent such as an alkoxysilane.
- a silane coupling agent such as an alkoxysilane.
- the silane coupling agent may bleed out. This causes problems such as a decrease in the adhesion of the polyimide film, a swelling of the laminate, and a decrease in the reliability of the semiconductor element.
- a silane coupling agent is added to or reacted with the polyamic acid solution, there is also a problem that the viscosity stability of the polyamic acid solution is reduced. In order to avoid such problems, it is preferable not to use a silane coupling agent.
- the polyimide film obtained from the polyimide precursor resin composition of the present invention has improved peel strength to the substrate, and can provide a good flexible device substrate without using a silane coupling agent.
- the polyimide precursor resin composition of the present invention may contain a solvent.
- the solvent is not particularly limited as long as the polyamic acid is dissolved, and examples thereof include the same solvents as those used in preparing the polyamic acid.
- the solvent may be a mixture of two or more.
- the solvent used when preparing the polyamic acid is not particularly limited, and examples thereof include N, N-dimethylformamide, N, N-dimethylacetamide, N, N-diethylacetamide, N-methyl-2-pyrrolidone, N Amide solvents such as -ethyl-2-pyrrolidone, N-vinyl-2-pyrrolidone, ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -valerolactone, ⁇ -caprolactone, ⁇ -caprolactone, ⁇ -methyl- ⁇ -butyrolactone, etc.
- Cyclic ester solvents carbonate solvents such as ethylene carbonate and propylene carbonate, glycol solvents such as triethylene glycol, phenol solvents such as m-cresol, p-cresol, 3-chlorophenol, 4-chlorophenol, acetophenone, 1,1 3-Dimethyl- - imidazolidinone, sulfolane, and dimethyl sulfoxide.
- alcohol solvents such as methanol and ethanol, phenol, o-cresol, butyl acetate, ethyl acetate, isobutyl acetate, propylene glycol methyl acetate, ethyl cellosolve, butyl cellosolve, 2-methyl Cellosolve acetate, ethyl cellosolve acetate, butyl cellosolve acetate, tetrahydrofuran, dimethoxyethane, diethoxyethane, dibutyl ether, diethylene glycol dimethyl ether, methyl isobutyl ketone, diisobutyl ketone, cyclopentanone, cyclohexanone, methyl ethyl ketone, acetone, butanol, ethanol, xylene, Toluene, chlorobenzene, N-methylcaprolactam, hexamethylphosphorotriamide, bis (
- the solid content concentration attributable to the polyamic acid is not particularly limited, but preferably 5% by mass to 45% by mass with respect to the total amount of the polyamic acid and the solvent. %, More preferably 7% by mass to 40% by mass, still more preferably 9% by mass to 30% by mass.
- the solid concentration is lower than 5% by mass, productivity and handling at the time of use may be deteriorated, and when higher than 45% by mass, the solution may lose fluidity.
- the solution viscosity at 30 ° C. of the polyimide precursor resin composition of the present invention is not particularly limited, but is preferably 1000 Pa ⁇ s or less, more preferably 0.1 to 500 Pa ⁇ s, further preferably 0.1 to 300 Pa It is preferable in terms of handling that s, particularly preferably 0.1 to 200 Pa ⁇ s.
- s particularly preferably 0.1 to 200 Pa ⁇ s.
- metal or glass Etc. may be caused during application to a carrier substrate, and it may be difficult to obtain a polyimide film of high characteristics.
- the polyimide precursor resin composition of the present invention is excellent in storage stability because the terminal is sealed with a carboxylic acid monoanhydride.
- the viscosity change rate of the polyimide precursor resin composition of the present invention is preferably ⁇ 10% or less, more preferably ⁇ 5% or less, and still more preferably ⁇ 3% or less. By setting the viscosity change rate in this range, the change in viscosity is small even after long-term holding, and it is possible to suppress the occurrence of unevenness when coating on various substrates.
- the “viscosity change rate” indicates the change in viscosity when the polyimide precursor resin composition is held at 25 ° C. for 30 days.
- a tetracarboxylic acid component and a diamine component are reacted in a solvent at a molar ratio satisfying the formula (1) to have an amino group at the end.
- a first step of obtaining a polyamic acid and a second step of reacting the obtained polyamic acid and a carboxylic acid monoanhydride in a molar ratio satisfying the formula (2) to seal the end of the polyamic acid Including.
- the first step is carried out at a relatively low temperature of, for example, 100 ° C. or less, preferably 80 ° C. or less, in order to suppress the imidization reaction.
- the reaction temperature is usually 25 ° C. to 100 ° C., preferably 40 ° C. to 80 ° C., more preferably 50 ° C. to 80 ° C.
- the reaction time is usually about 0.1 to 24 hours Preferably, it is about 2 to 12 hours.
- the reaction can be carried out under an air atmosphere, but is usually carried out under an inert gas atmosphere, preferably under a nitrogen gas atmosphere.
- the reaction temperature may be appropriately set, but from the viewpoint of reliably sealing the end of the polyamic acid, preferably 25 ° C. to 70 ° C., more preferably 25 ° C. to 60 ° C., further preferably 25 ° C to 50 ° C.
- the reaction time is usually about 0.1 to 24 hours.
- a flexible device substrate can be manufactured using the polyimide precursor resin composition of the present invention. Furthermore, a flexible device can be manufactured using the obtained flexible device substrate.
- the polyimide precursor resin composition of the present invention is cast on a carrier substrate, and a polyimide film is formed by imidization by heat treatment.
- the obtained polyimide film can be used for a flexible device substrate.
- the carrier substrate there is no limitation on the carrier substrate, but generally, glass substrates such as soda lime glass, borosilicate glass, non-alkali glass, and metal substrates such as iron and stainless steel are used.
- the casting method of the polyamic acid solution on the carrier substrate is not particularly limited, and examples thereof include conventionally known methods such as spin coating method, screen printing method, bar coater method and electrodeposition method.
- the heat treatment conditions are not particularly limited, but after drying at a temperature range of 50 ° C. to 150 ° C., the maximum heating temperature is 150 ° C. to 600 ° C., preferably 200 ° C. to 550 ° C., more preferably 250 ° C. to 500 ° C. It is preferable to process.
- the thickness of the polyimide film is preferably 1 ⁇ m or more. When the thickness is less than 1 ⁇ m, the polyimide film can not maintain sufficient mechanical strength, and when used as a flexible device substrate, it can not withstand stress and may be broken.
- the thickness of the polyimide film is preferably 20 ⁇ m or less. When the thickness of the polyimide film exceeds 20 ⁇ m, thinning of the flexible device becomes difficult.
- the thickness of the polyimide film is more preferably 2 to 10 ⁇ m in order to make the film thinner while maintaining sufficient resistance as a flexible device.
- the polyimide film obtained from the polyimide precursor resin composition of the present invention is strongly laminated on a glass substrate.
- the peel strength between the glass substrate and the polyimide film is generally 50 mN / mm or more, preferably 100 mN / mm or more, more preferably 200 mN / mm or more, still more preferably, when measured in accordance with JIS K6854-1. It is 300 mN / mm or more.
- a flexible device substrate may be formed by laminating a second layer such as a resin film or an inorganic film on a polyimide film obtained from the polyimide precursor resin composition of the present invention.
- a second layer such as a resin film or an inorganic film on a polyimide film obtained from the polyimide precursor resin composition of the present invention.
- the inorganic film can be used as a water vapor barrier layer and is preferable.
- inorganic films containing an inorganic material selected from the group consisting of metal oxides such as (ZrO 2 ), metal nitrides and metal oxynitrides include physical vapor deposition methods such as vacuum deposition, sputtering, and ion plating, and chemical vapor deposition such as plasma CVD and catalytic chemical vapor deposition (Cat-CVD). Methods (chemical vapor deposition) and the like are known.
- the flexible device substrate may be formed by laminating a polyimide film obtained from the polyimide precursor resin composition of the present invention on a resin film or an inorganic film.
- a polyimide film can be laminated on a resin film or an inorganic film using the polyimide precursor resin composition of the present invention in the same manner as in the case of the carrier substrate.
- the polyimide film obtained from the polyimide precursor resin composition of the present invention is strongly laminated even when the inorganic film is a substrate.
- the peel strength between the polyimide film and the inorganic film is generally 50 mN / mm or more, preferably 100 mN / mm or more, more preferably 200 mN when measured in accordance with JIS K6854-1. / Mm or more, more preferably 300 mN / mm or more.
- circuits necessary for a display device or a light receiving device are formed on the flexible device substrate (in particular, a polyimide film) formed as described above. This process differs depending on the type of device.
- a TFT liquid crystal display device a TFT of amorphous silicon, for example, is formed on a polyimide film.
- the TFT includes, for example, a gate metal layer, a semiconductor layer such as an amorphous silicon film, a silicon nitride gate dielectric layer, and an ITO pixel electrode.
- the structure necessary for the liquid crystal display can also be formed by a known method. Since the polyimide film obtained in the present invention is excellent in various properties such as heat resistance and toughness, the method for forming a circuit or the like is not particularly limited.
- the flexible device substrate (in particular, a polyimide film) having a circuit or the like formed on the surface is peeled off from the carrier substrate.
- the peeling method For example, it can peel by irradiating a laser etc. from the carrier substrate side.
- Examples of flexible devices in the present invention include display devices such as liquid crystal displays, organic EL displays, and electronic paper, and light receiving devices such as solar cells and CMOS.
- the present invention is particularly suitable for application to devices that are desired to be made thin and flexible.
- ⁇ Viscosity stability The sample whose viscosity change rate of the solution viscosity after holding at 25 ° C. for 30 days is ⁇ 5% or less is ⁇ , and the other is ⁇ .
- ⁇ Peeling strength of laminate It was measured at a width of 10 mm and a crosshead speed of 50 mm / min according to the 90 ° peeling test described in JIS K6854-1.
- the amounts of compounds used in the following examples are expressed in molar proportions.
- the amount of other compounds is expressed as a molar ratio to the total amount of diamine, assuming that the total amount of diamine is 100 mol%.
- Example 1 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (98 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (2 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 3.0 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat-treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes for 10 ⁇ m thick polyimide film Formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 538 mN / mm.
- Example 2 An SiO x film was formed on the polyimide film of the polyimide / glass laminate obtained in Example 1 by chemical vapor deposition (CVD).
- the polyimide precursor resin composition obtained in Example 1 was spin-coated on this SiO x film.
- the coated film is heat-treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C. and 500 ° C. for 10 minutes each to form a polyimide film having a thickness of 10 ⁇ m to obtain a laminate having two polyimide layers.
- the No blistering or the like was observed in this laminate, and the 90 ° peel strength between the SiO x layer of this laminate and the polyimide layer laminated thereon was 499 mN / mm.
- Example 3 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (98 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (4 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 2.9 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 512 mN / mm.
- Example 4 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (98 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, maleic anhydride (4 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 3.1 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 282 mN / mm.
- Comparative Example 1 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (100 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a liquid polyimide precursor resin composition having a viscosity of 1.1 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the obtained liquid polyimide precursor resin composition was spin-coated on a 625 ⁇ m thick 6 inch silicon substrate, and then baked for 2 minutes on a 130 ° C. hot plate to form a film of 5 ⁇ m thickness. Then, using a curing furnace, heat curing was carried out at 200 ° C. for 30 minutes, and further at 350 ° C. for 60 minutes for imidization, to obtain a polyimide film.
- the film thickness after imidation was 3 ⁇ m. Although no blistering or the like was observed in this laminate, the 90 ° peel strength between the polyimide film and the silicon substrate was 10 mN / mm, and adhesion was hardly observed.
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. An SiO x film was formed on the polyimide film of the obtained polyimide / glass laminate by chemical vapor deposition (CVD). The prepared polyimide precursor resin composition was again spin-coated on the SiO x film. The coated film was heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C. and 500 ° C.
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. Although no blistering or the like was observed in the obtained polyimide / glass laminate, the polyimide film was very brittle, and the 90 ° peel strength could not be measured.
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. Although no blistering or the like was observed in the obtained polyimide / glass laminate, the polyimide film was very brittle, and the 90 ° peel strength could not be measured.
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. Although no blistering or the like was observed in the obtained polyimide / glass laminate, the polyimide film was very brittle, and the 90 ° peel strength could not be measured.
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. Although no blistering or the like was observed in the obtained polyimide / glass laminate, the polyimide film was very brittle, and the 90 ° peel strength could not be measured.
- Example 5 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (97 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (3 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 1.4 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 417 mN / mm.
- Example 6 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (98 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, PEPA (4 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 4.4 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 318 mN / mm.
- Example 7 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (99.5 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (1 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 4.4 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 417 mN / mm.
- Example 8 In a reaction vessel purged with nitrogen gas, ODA (100 mol%) and NMP were charged, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (98 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (4 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 3.3 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat-treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 400 ° C. for 10 minutes for each thickness. A 10 ⁇ m polyimide film was formed. No swelling or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 608 mN / mm.
- Example 9 PPD (50 mol%), ODA (50 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (39.2 mol%) and PMDA (58.8 mol%) were added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (4 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 2.0 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat-treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 400 ° C. for 10 minutes for each thickness. A 10 ⁇ m polyimide film was formed. No blistering or the like was observed in the obtained polyimide / glass laminate, and the 90 ° peel strength between the polyimide film of this laminate and the glass substrate was 288 mN / mm.
- Comparative Example 7 PPD (100 mol%) and NMP were charged into a reaction vessel purged with nitrogen gas, and heated and stirred at 40 ° C. for 15 minutes to dissolve the monomers. Thereafter, s-BPDA (98 mol%) was added, and the mixture was further stirred for 30 minutes to obtain a polyamic acid solution. Thereafter, phthalic anhydride (4.5 mol%) was added to the polyamic acid solution to obtain a liquid polyimide precursor resin composition having a viscosity of 4.4 Pa ⁇ s (25 ° C.). The polyimide precursor resin composition was allowed to stand at 25 ° C. for 30 days, and the viscosity stability was evaluated. The evaluation result was ⁇ .
- the prepared polyimide precursor resin composition is spin-coated on a glass substrate, and the coated film is heat treated at 120 ° C., 150 ° C., 200 ° C., 250 ° C., 500 ° C. for 10 minutes each, and the thickness is on the glass substrate A 10 ⁇ m polyimide film was formed. Although no blistering or the like was observed in the obtained polyimide / glass laminate, the polyimide film was very brittle, and the 90 ° peel strength could not be measured.
- the polyimide precursor resin composition of the present invention gives a polyimide film having excellent peel strength to the substrate even without the silane coupling agent, and for example, a display device such as a liquid crystal display, an organic EL display, an electronic paper, etc. It can be suitably used as a substrate of a flexible device such as a light receiving device such as a light receiving element of a thin film solar cell.
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Abstract
Description
1. 下記式(1)および下記式(2)を満たす、3,3’,4,4’-ビフェニルテトラカルボン酸二無水物およびピロメリット酸二無水物の少なくとも一方を含むテトラカルボン酸成分、パラフェニレンジアミンおよび4,4’-ジアミノジフェニルエーテルの少なくとも一方を含むジアミン成分、およびカルボン酸モノ無水物から得られる構造を有するポリアミック酸を含むフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
式(2) 0.5≦(Z/2)/(Y-X)≦1.05
(式中、Xは前記テトラカルボン酸成分のモル数、Yは前記ジアミン成分のモル数、Zは前記カルボン酸モノ無水物のモル数を表す。)
2. 3,3’,4,4’-ビフェニルテトラカルボン酸二無水物の含有量が前記テトラカルボン酸成分の40モル%以上である、項1に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
3. パラフェニレンジアミンの含有量が前記ジアミン成分の40モル%以上である、項1または2に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
4. 前記カルボン酸モノ無水物が、無水フタル酸または無水マレイン酸である、項1~3のいずれかに記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
5. 項1~4のいずれかに記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物から得られるポリイミド膜とガラス基板とを含む積層体。
6. 項1~4のいずれかに記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物から得られるポリイミド膜を含むフレキシブルデバイス基板。
7. 項1~4のいずれかに記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物から得られるポリイミド膜、および窒化ケイ素、酸化ケイ素、酸窒化ケイ素、酸化アルミニウム、酸化チタン、および酸化ジルコニウムからなる群より選択される無機物を含む無機膜を含むフレキシブルデバイス基板。
8. 項6または7に記載のフレキシブルデバイス基板上にTFTを搭載したフレキシブルデバイス。
9. ポリアミック酸を含むフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物を基板上に流涎する工程、および前記ポリアミック酸を加熱処理によりイミド化し、ポリイミド膜を形成する工程、を含む積層体の製造方法であって、
前記ポリアミック酸が、下記式(1)および下記式(2)を満たす、3,3’,4,4’-ビフェニルテトラカルボン酸二無水物およびピロメリット酸二無水物の少なくとも一方を含むテトラカルボン酸成分、パラフェニレンジアミンおよび4,4’-ジアミノジフェニルエーテルの少なくとも一方を含むジアミン成分、およびカルボン酸モノ無水物から得られる構造を有するポリアミック酸であることを特徴とする、積層体の製造方法。
式(2) 0.5≦(Z/2)/(Y-X)≦1.05
(式中、Xは前記テトラカルボン酸成分のモル数、Yは前記ジアミン成分のモル数、Zは前記カルボン酸モノ無水物のモル数を表す。)
式(2) 0.5≦(Z/2)/(Y-X)≦1.05
(式中、Xはテトラカルボン酸成分のモル数、Yはジアミン成分のモル数、Zはカルボン酸モノ無水物のモル数を表す。)
(粘度変化率(%))={(保持後粘度)-(保持前粘度)}/(保持前粘度)×100
<溶液粘度>
E型回転粘度計を用いて、25℃における10rpmでの溶液粘度を測定した。
25℃30日間保持後の溶液粘度の粘度変化率が±5%以下である試料を○とし、それ以外を×とした。
<積層体の層間剥離強度>
JIS K6854-1に記載の90°剥離試験により、10mm幅、クロスヘッド速度50mm/分にて測定した。
s-BPDA:3,3’,4,4’-ビフェニルテトラカルボン酸二無水物
PMDA:ピロメリット酸二無水物
PPD:p-フェニレンジアミン
ODA:4,4’-ジアミノジフェニルエーテル
PEPA:4-フェニルエチニルフタル酸無水物
NMP:N-メチル-2-ピロリドン
γ-APS:3-アミノプロピルトリエトキシシラン
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(2モル%)を加え、粘度3.0Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
実施例1で得られたポリイミド/ガラス積層体のポリイミド膜上に化学気相成長法(CVD)によりSiOx膜を形成した。このSiOx膜上に、実施例1で得られたポリイミド前駆体樹脂組成物をスピンコートした。塗膜を120℃、150℃、200℃、250℃、500℃にて各10分間加熱処理し、厚さが10μmのポリイミド膜を更に形成して、2層のポリイミド層を有する積層体を得た。この積層体には膨れなどは見られず、また、この積層体のSiOx層とその上に積層したポリイミド層との90°剥離強度は499mN/mmであった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(4モル%)を加え、粘度2.9Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水マレイン酸(4モル%)を加え、粘度3.1Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(100モル%)を加え、さらに30分間撹拌し、粘度1.1Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(99.5モル%)およびシランカップリング剤であるγ-APS(0.5モル%)を加え、さらに30分間撹拌し、粘度19.0Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は×であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(8モル%)を加え、粘度3.2Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(97モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(2モル%)を加え、粘度2.8Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(96.1モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(7.8モル%)を加え、粘度3.0Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(92.4モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(13.9モル%)を加え、粘度3.1Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(97モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(3モル%)を加え、粘度1.4Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液にPEPA(4モル%)を加え、粘度4.4Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(99.5モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(1モル%)を加え、粘度4.4Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、ODA(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(4モル%)を加え、粘度3.3Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(50モル%)、ODA(50モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(39.2モル%)およびPMDA(58.8モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(4モル%)を加え、粘度2.0Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
窒素ガスで置換した反応容器中に、PPD(100モル%)およびNMPを仕込み、15分間40℃で加熱撹拌し、モノマーを溶解させた。その後、s-BPDA(98モル%)を加え、さらに30分間撹拌し、ポリアミック酸溶液を得た。その後、ポリアミック酸溶液に無水フタル酸(4.5モル%)を加え、粘度4.4Pa・s(25℃)の液状ポリイミド前駆体樹脂組成物を得た。このポリイミド前駆体樹脂組成物を25℃で30日間静置し、粘度安定性評価を実施した。評価結果は○であった。
Claims (9)
- 下記式(1)および下記式(2)を満たす、3,3’,4,4’-ビフェニルテトラカルボン酸二無水物およびピロメリット酸二無水物の少なくとも一方を含むテトラカルボン酸成分、パラフェニレンジアミンおよび4,4’-ジアミノジフェニルエーテルの少なくとも一方を含むジアミン成分、およびカルボン酸モノ無水物から得られる構造を有するポリアミック酸を含むフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
式(1) 0.97≦X/Y<1.00
式(2) 0.5≦(Z/2)/(Y-X)≦1.05
(式中、Xは前記テトラカルボン酸成分のモル数、Yは前記ジアミン成分のモル数、Zは前記カルボン酸モノ無水物のモル数を表す。) - 3,3’,4,4’-ビフェニルテトラカルボン酸二無水物の含有量が前記テトラカルボン酸成分の40モル%以上である、請求項1に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
- パラフェニレンジアミンの含有量が前記ジアミン成分の40モル%以上である、請求項1または2に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
- 前記カルボン酸モノ無水物が、無水フタル酸または無水マレイン酸である、請求項1~3のいずれか1項に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物。
- 請求項1~4のいずれか1項に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物から得られるポリイミド膜とガラス基板とを含む積層体。
- 請求項1~4のいずれか1項に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物から得られるポリイミド膜を含むフレキシブルデバイス基板。
- 請求項1~4のいずれか1項に記載のフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物から得られるポリイミド膜、および窒化ケイ素、酸化ケイ素、酸窒化ケイ素、酸化アルミニウム、酸化チタン、および酸化ジルコニウムからなる群より選択される無機物を含む無機膜を含むフレキシブルデバイス基板。
- 請求項6または7に記載のフレキシブルデバイス基板上にTFTを搭載したフレキシブルデバイス。
- ポリアミック酸を含むフレキシブルデバイス基板形成用ポリイミド前駆体樹脂組成物を基板上に流涎する工程、および前記ポリアミック酸を加熱処理によりイミド化し、ポリイミド膜を形成する工程、を含む積層体の製造方法であって、
前記ポリアミック酸が、下記式(1)および下記式(2)を満たす、3,3’,4,4’-ビフェニルテトラカルボン酸二無水物およびピロメリット酸二無水物の少なくとも一方を含むテトラカルボン酸成分、パラフェニレンジアミンおよび4,4’-ジアミノジフェニルエーテルの少なくとも一方を含むジアミン成分、およびカルボン酸モノ無水物から得られる構造を有するポリアミック酸であることを特徴とする、積層体の製造方法。
式(1) 0.97≦X/Y<1.00
式(2) 0.5≦(Z/2)/(Y-X)≦1.05
(式中、Xは前記テトラカルボン酸成分のモル数、Yは前記ジアミン成分のモル数、Zは前記カルボン酸モノ無水物のモル数を表す。)
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CN201880089560.5A CN111770950A (zh) | 2017-12-28 | 2018-12-27 | 柔性器件基板形成用聚酰亚胺前体树脂组合物 |
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WO2023080158A1 (ja) * | 2021-11-02 | 2023-05-11 | Ube株式会社 | ポリイミド前駆体組成物、およびその製造方法 |
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WO2023200025A1 (ko) * | 2022-04-13 | 2023-10-19 | 주식회사 넥스플렉스 | 폴리이미드 필름 제조용 조성물 및 이를 사용하여 제조된 연성금속박적층체용 폴리이미드 필름 |
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