WO2020175517A1 - Film and method for manufacturing same - Google Patents

Film and method for manufacturing same Download PDF

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Publication number
WO2020175517A1
WO2020175517A1 PCT/JP2020/007616 JP2020007616W WO2020175517A1 WO 2020175517 A1 WO2020175517 A1 WO 2020175517A1 JP 2020007616 W JP2020007616 W JP 2020007616W WO 2020175517 A1 WO2020175517 A1 WO 2020175517A1
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Prior art keywords
film
formula
group
polymer
independently
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PCT/JP2020/007616
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French (fr)
Japanese (ja)
Inventor
真文 高橋
功一朗 別府
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日産化学株式会社
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Publication of WO2020175517A1 publication Critical patent/WO2020175517A1/en

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular 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
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers

Definitions

  • the present invention relates to a film having a plurality of regions having a plurality of polymers having a specific structure, and a plurality of regions in which the orientations of the plurality of polymers are aligned, and a process for producing the film. Regarding the method.
  • a TN (Twisted Nematic) mode liquid crystal display device has been put into practical use. In this mode, it is necessary to use a polarizing plate in order to switch the light by utilizing the optical rotatory property of the liquid crystal, but the use efficiency of the light becomes low when the polarizing plate is used.
  • As an element there is an element that switches between a transparent state (also called a transparent state) and a scattering state of liquid crystal.
  • PD LC Polymer Dispersed Liquid Crystal
  • PN LC Polymer Network Liquid Crystal
  • liquid crystal display elements a liquid crystal composition containing a polymerizable compound that is polymerized by ultraviolet rays is placed between a pair of substrates equipped with electrodes, and the liquid crystal composition is cured by irradiation with ultraviolet rays. And a cured product of a polymerizable compound (for example, a polymer network) are formed. Then, in this liquid crystal display element, the scattering state and the transmission state of the liquid crystal are controlled by applying a voltage (see Patent Documents 1 and 2).
  • Patent Document 1 Japanese Patent No. 3552328.
  • Patent Document 2 Japanese Patent No. 4630954.
  • the object of the present invention is to provide a plurality of regions, which are found in providing the above liquid crystal display device, having a plurality of polymers having a specific structure, and in which the orientations of the plurality of polymers are aligned.
  • To provide a film made of Another object of the present invention is to provide a method for producing the film.
  • the present inventor has found the present invention having the following gist.
  • the present invention it is possible to provide a film having a plurality of regions having a plurality of polymers having a specific structure and having a plurality of regions in which the orientations of the plurality of polymers are aligned. ..
  • the present invention can provide a method for producing the film.
  • Fig. 1 is a polarizing microscope image (a film shows liquid crystallinity) of a film of a glass substrate having a liquid crystal alignment film obtained in Example 1.
  • FIG. 2 A scanning electron microscope (3M IV!) image of the film of the glass substrate with the liquid crystal alignment film obtained in Example 4.
  • FIG. 3 is a scanning electron microscope (3M IV!) image of the film of the glass substrate with the liquid crystal alignment film obtained in Example 4.
  • the present application provides a novel membrane and a method for manufacturing the membrane.
  • the above-mentioned polymers are not particularly limited, but include acrylic polymers, methacrylic polymers, novolac resins, epoxy resins, polyhydroxystyrenes, polyimide precursors, polyimides, polyamides, polyesters, polyethers. ⁇ 2020/175517 5 ⁇ (: 171-1? 2020/007616
  • it is a polyimide precursor or polyimide (collectively referred to as polyimide-based polymer).
  • the above-mentioned polymer preferably contains a liquid crystalline polymer, and preferably the above-mentioned polymer is a liquid crystalline polymer.
  • the liquid crystalline polymer exhibits liquid crystallinity in the range of 80 to 350 ° , preferably 100 to 300 ° , and more preferably 120 to 250°. Is good.
  • the polyimide precursor has a structure of the following formula [8].
  • 2 represents a divalent organic group.
  • Each eight 1 and 2 is a hydrogen atom or an alkyl group having a carbon number of 1-8.
  • 8 and 3 each represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an acetyl group.
  • the door indicates a positive integer.
  • the diamine component is a diamine having two primary or secondary amino groups in the molecule
  • the tetracarboxylic acid component is a tetracarboxylic oxide compound or a tetracarboxylic dianhydride.
  • a tetracarboxylic acid dihalide compound, a tetracarboxylic acid dialkyl ester compound or a tetracarboxylic acid dialkyl ester dihalide compound is a tetracarboxylic oxide compound or a tetracarboxylic dianhydride.
  • a polyamic acid having a structural formula of a repeating unit of the formula [or] or a polyimide obtained by imidizing the polyamic acid is preferable.
  • the polymer of the formula [mouth] obtained above is added to the polymer of the formula [8] having 1 and 2 alkyl groups having 1 to 8 carbon atoms, and in the formula [] 3 and eight 4 alkyl group or an acetyl group with carbon number from 1 to 5 can also be introduced.
  • the polymer preferably has at least one kind of partial structure (also referred to as a specific partial structure (8)) selected from the following formulas [81] to [84], and preferably has the formula [84] ] It is good to have a partial structure of.
  • a specific partial structure (8) also referred to as a specific partial structure (8)
  • the polymer preferably has at least one kind of partial structure (also referred to as a specific partial structure (Mitsumi)) selected from the following formulas [Minami 1] to [Minami 7], and is preferable. ⁇ 2020/175 517 7 ⁇ (: 171-1? 2020/007616
  • each independently represents an alkyl group having 1 to 3 carbon atoms, preferably 1 to 2 carbon atoms.
  • n 1 to n 4 each independently represent an integer of 0 to 2, preferably 0 or 1. Hydrogen on the aromatic ring, _ ⁇ _1 to 1 3, ten 3, over one Rei_1 ⁇ 1, one thousand 1 to 1, one 1 ⁇ 1_Rei 2, one-! - snake hundred, Or — (600) 2 may be substituted (where ___ is ⁇ “1:-butoxycarbonyl group”).
  • the polymer is composed of at least one partial structure 8 selected from the group 8 consisting of the following formulas [8 1] to [8 4], and the following formulas [1] to [7] It is preferable that the polymer is a polyimide-based polymer having at least one kind of partial structure selected from the group consisting of
  • a diamine having a specific partial structure () and a tetracarboxylic acid having a specific partial structure (M) are used, and a diamine having a specific partial structure (M) and a specific partial structure (8) are used.
  • a tetracarboxylic acid having is used is mentioned.
  • a diamine having a specific partial structure (8) (also referred to as a specific diamine (8).) ⁇ 2020/175 517 8 ⁇ (:171? 2020 /007616
  • a tetracarboxylic acid having a specific partial structure (Minami) (also referred to as a specific tetracarboxylic acid (B)), a diamine of the following formula [18] and a tetracarboxylic acid of the formula [2] are used, respectively. It is preferable.
  • X 1 and X 3 are each independently a single bond, 101, -001, 100001, 100001, 1CNH- , 1 ⁇ 1 1 ⁇ 1 x 0 1 or 1 !-indicates at least one selected from. Among them, a single bond, 101, 1001, 100001 or 100001 is preferable.
  • X 2 represents at least one selected from the above formula [8 1] to formula [8 4]. Above all, the formula [1] or the formula [4] is preferable from the viewpoint of the optical characteristics of the liquid crystal display device. Also, formula [8 1] to formula [8 4]
  • each of 1 and 5 independently represents at least one selected from an aromatic ring, an alicyclic group and a heterocyclic group. Of these, an aromatic ring or an alicyclic group is preferable.
  • 2 and 4 are each independently a single bond, 101, 1001, -0000 -, 1001, ⁇ one or one Indicates at least one selected from Of these, a single bond, 101, 1001, 100001 or —0.000— is preferable.
  • Reference numeral 3 represents at least one selected from the above formulas [Mis 1] to [Mis 7]. Among them, from the viewpoint of the optical characteristics of the liquid crystal display device, the formula [Min 1], the formula [Min 4] or the formula [Min 7] is preferable. Further, the details and preferred values of 3 to 30 and n 1 to 114 in the formulas [Mis 1] to [Mis 7] are as described above.
  • n 5 and n 6 each independently represent an integer of 0 or 1.
  • n 5 and n 6 are integers of 0, the structures of the formulas [Mis 1] to [Mis 7] are assumed to be directly bonded to the bond of the tetracarboxylic acid.
  • the use ratio of each of the specific diamine (8) and the specific tetracarboxylic acid (Mitsumi) is preferably as follows. Specifically, the use ratio of the specific diamine (8) is preferably 30 to 100 mol%, and preferably 50 to 100 mol% with respect to the entire diamine component from the viewpoint of the optical characteristics of the liquid crystal display element. More preferable. From the viewpoint of the optical characteristics of the liquid crystal display element, the use ratio of the specific tetracarboxylic acid (Mitsumi) is preferably 30 to 100 mol %, and preferably 50 to 100 mol% based on the whole tetracarboxylic acid component. % Is more preferable. Further, the specific diamine (8) and the specific tetracarbonic acid (Mitsumi) can be used either individually or in combination of two or more, depending on their respective characteristics.
  • X 4 represents at least one selected from the formulas [1] to [7].
  • the formula [Mis 1], the formula [Mis 4] or the formula [Mis 7] is preferable.
  • 3 to 3° and 1 to in expression [Mis 1] to [Mis 7] The details and preferences of 4 are as described above.
  • each of 6 and 10 independently represents at least one selected from an aromatic ring, an alicyclic group and a heterocyclic group. Of these, an aromatic ring or an alicyclic group is preferable.
  • 7 and 9 are each independently a single bond, 101, 1001, -0000-, 10011, ⁇ one or one Few to choose from ⁇ 2020/175517 10 ⁇ (: 171-1? 2020/007616
  • Reference numeral 8 represents at least one selected from the formula [8 1] to the formula [8 4]. Among them, the formula [84] is preferable from the viewpoint of the optical characteristics of the liquid crystal display device. Also,
  • Each of 7 and n 8 independently represents an integer of 0 or 1.
  • the use ratio of each of the specific diamine (Mitsumi) and the specific tetracarboxylic acid (8) is preferably as follows.
  • the usage ratio of the specific diamine (Mitsumi) is preferably from 30 to 100 mol% and more preferably from 50 to 100 mol% with respect to the entire diamine component from the viewpoint of the optical characteristics of the liquid crystal display element. More preferable.
  • the use ratio of the specific tetracarboxylic acid (8) is preferably 30 to 100 mol %, and preferably 50 to 100 mol% with respect to the whole tetracarboxylic acid component. More preferable.
  • the specific diamine (Mitsumi) and the specific tetracarboxylic acid (eight) may be used either individually or in combination of two or more, depending on their respective characteristics.
  • a diamine other than the specific diamine (8) and the specific diamine (Mitsumi) can be used as long as the effects of the present invention are not impaired.
  • the formula described on pages 34 to 38 of International Publication Gazette ⁇ / ⁇ 2 0 1 6/0 7 6 4 1 2 (2 0 16.5.19 publication) [3 3-1] to diamine compounds of the formula [3 3-5] other diamine compounds described on pages 39 to 42 of the publication, and on pages 42 to 44 of the publication. Examples include diamine compounds represented by the formulas [0 8 1] to [0 8 15].
  • Other Jami ⁇ 2020/175517 11 ⁇ (: 171-1? 2020/007616
  • the specific tetracarboxylic acid () and the specific tetracarboxylic acid (Mi) are the tetracarboxylic dianhydrides of the above formulas [2 8] and [2] and their tetracarboxylic acid derivatives.
  • a tetracarboxylic acid dihalide compound, a tetracarboxylic acid dialkyl ester compound or a tetracarboxylic acid dialkyl ester dihalide compound can be used.
  • tetracarboxylic acid component other tetracarboxylic acid other than the specific tetracarboxylic acid () and the specific tetracarboxylic acid (Mitsumi) can be used.
  • examples of other tetracarboxylic acids include the following tetracarboxylic acid compounds, tetracarboxylic acid dianhydrides, dicarboxylic acid dihalide compounds, dicarboxylic acid dialkyl ester compounds and dialkyl ester dihalide compounds.
  • the method for synthesizing the polyimide polymer is not particularly limited. Usually, it is obtained by reacting a diamine component and a tetracarboxylic acid component. Specifically, the method described on pages 46 to 50 of WO 201 6/0764 1 2 (Published on May 6, 2010) can be mentioned.
  • the reaction between the diamine component and the tetracarboxylic acid component is usually carried out in a solvent containing the diamine component and the tetracarboxylic acid component.
  • the solvent used at that time is not particularly limited as long as it can dissolve the formed polyimide precursor. Specifically, 1 ⁇ !-methyl-2-pyrrolidone, 1 ⁇ 1-ethyl-2-pyrrolidone, arbutyrolactone, 1 ⁇ 1, 1 ⁇ 1_dimethylformamide, 1 ⁇ 1, 1 ⁇ 1_dimethyl Acetamide, dimethyl sulfoxide, 1,3-dimethyl-2-imidazolidinone and the like can be mentioned.
  • methyl ethyl ketone, cyclohexanone, cyclopentanone, 4-hydroxy _4-methyl-2-pentanone or one of the following formulas [mouth 1] to formula [mouth 3] A solvent can be used.
  • Port 2 represents an alkyl group having 1 to 3 carbon atoms.
  • Mouth 3 represents an alkyl group having 1 to 4 carbon atoms.
  • these may be used alone or in combination.
  • a solvent that does not dissolve the polyimide precursor may be used as a mixture with the above-mentioned solvent as long as the formed polyimide precursor does not precipitate.
  • water in the organic solvent inhibits the polymerization reaction and causes hydrolysis of the formed polyimide precursor, it is preferable to use dehydrated and dried organic solvent.
  • the total number of moles of the tetracarboxylic acid component when the total number of moles of the diamine component is 1.0 is preferably 0.8 to 1.2. ..
  • Polyimide is a polyimide obtained by ring closure of a polyimide precursor, and in this polyimide, the ring closure rate (also referred to as imidation rate) of amide acid groups does not necessarily have to be 100%. , It can be adjusted arbitrarily according to the application and purpose. Among them, 30 to 80% is preferable from the viewpoint of the solubility of the polyimide polymer in the solvent. More preferred is 40 to 70%.
  • the molecular weight of the polyimido polymer is the weight average molecular weight measured by GPC (Gel Permeation Chromatograp hy) method, considering the strength of the film obtained therefrom, workability during film formation, and coating property. It is preferably 5,000 to 1,000,000, and more preferably 10,000 to 150,000.
  • the membrane of the present invention has a plurality of regions having a plurality of polymers each having the at least one partial structure A and the at least one partial structure B.
  • orientations of a plurality of polymers in the region are aligned. ⁇ 2020/175 517 13 ⁇ (:171? 2020 /007616
  • the film of the present invention has a region, a region, a region 0 (following, but for the sake of explanation, it is assumed that there are three regions 8 to 0).
  • Each of the regions to ⁇ has a plurality of polymers, and in each of the regions to ⁇ , the orientation directions of the plurality of polymers are aligned.
  • orientation direction 3 of the specific polymer in the region and the orientation direction 8 13 of the specific polymer in the region may be the same or different.
  • alignment direction 80 of the specific polymer in the region ⁇ and the alignment direction 80 of the specific polymer in the region ⁇ may be the same or different.
  • the film of the present invention can exhibit liquid crystallinity by having a plurality of the above regions.
  • the film of the present invention can be applied to a film using the liquid crystallinity that develops, for example, a liquid crystal display for the purpose of display, and a dimming window or a dimming window for controlling light blocking and transmission.
  • the present invention can be applied to, but is not limited to, an optical shutter element, a liquid crystal display and/or a liquid crystal alignment film used for an optical shutter element, a liquid crystal display element including the liquid crystal alignment film, and the like.
  • the membrane of the present invention can be produced, for example, by the following production method.
  • the step () is a step of preparing the first substrate.
  • the first substrate is a substrate for manufacturing a film.
  • the first substrate is ⁇ 2020/175 517 14 (:171? 2020 /007616
  • the first substrate is used together with the film thereafter, the first substrate should be appropriately selected according to the application.
  • the first substrate examples include, but are not limited to, a highly transparent substrate, depending on the subsequent application.
  • a highly transparent substrate for example, in addition to a glass substrate, a plastic substrate such as a polyamide substrate, a polyimide substrate, a polyethersulfone substrate, an acrylic substrate, a polycarbonate substrate, and a Mita (polyethylene terephthalate) substrate.
  • a plastic substrate such as a polyamide substrate, a polyimide substrate, a polyethersulfone substrate, an acrylic substrate, a polycarbonate substrate, and a Mita (polyethylene terephthalate) substrate.
  • Substrates, and even films thereof can be used, but are not limited to these.
  • a plastic substrate or film is preferable.
  • the step ( ⁇ ) is a step of preparing a film forming liquid containing a polymer or a precursor thereof.
  • the polymer or its precursor has the same definition as above and can be prepared as described above.
  • the film forming liquid is a solution for forming a film and contains a polymer or its precursor and a predetermined solvent.
  • a polymer or its precursor one kind or two or more kinds can be used.
  • the content of the solvent in the film forming liquid can be appropriately selected from the viewpoint of obtaining the coating method of the film forming liquid and the desired film thickness.
  • the content of the solvent in the liquid is preferably 50 to 99.9 mass% from the viewpoint of forming a uniform film by coating.
  • 60 to 99 mass% is preferable. More preferably, it is 65 to 99% by mass.
  • the solvent used for the film-forming liquid is not particularly limited as long as it is a solvent that dissolves the polymer.
  • the polymer is a polyimide precursor, polyimide, polyamide, polyester, polyether, polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride) or poly(ester-force). Carbonate), or acrylic polymer, methacrylic polymer ⁇ 2020/175 517 15 ⁇ (:171? 2020 /007616
  • the following solvents are preferably used.
  • Examples of the solvent eight compounds include, for example, 1 ⁇ 1, 1 ⁇ 1—dimethylformamide, 1 ⁇ 1, 1 ⁇ 1—dimethylacetamide, 1 ⁇ 1—methyl-2-pyrrolidone, 1 ⁇ 1—ethyl
  • Examples thereof include 2-pyrrolidone, dimethyl sulfoxide, tyrolactone, 1,3-dimethyl-2-imidazolinone, methyl ethyl ketone, cyclohexanone, cyclopentanone and 4-hydroxy-4-methyl-2-pentanone.
  • 1 ⁇ 1_methyl-2-pyrrolidone, 1 ⁇ 1_ethyl-2-pyrrolidone or ⁇ -ptyrolactone is preferable. These may be used alone or in combination.
  • the liquid crystalline polymer is a polyimide precursor, a polyimide, Polyamide, polyester, polyether, polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride) or poly(ester carbonate), which have high solubility in these solvents
  • the following solvent also referred to as solvent solvent
  • solvent solvent can be used.
  • solvent solvents are described on pages 58 to 60 of International Publication No. ⁇ 2 0 1 4/1 7 1 4 9 3 (2 0 1 4 1 .0.2 3 publication). Solvents such as Among them, 1-hexanol, cyclohexanol, 1,2-ethanedine
  • solvents can improve the coating property and surface smoothness of the film when the film-forming liquid is applied, so that they can be added to polymers such as polyimide precursors, polyimides, polyamides, polyesters and polyethers.
  • polymers such as polyimide precursors, polyimides, polyamides, polyesters and polyethers.
  • polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride) or poly(ester carbonate) it is preferable to use it in combination with the eight solvents.
  • the amount of the solvent is preferably 1 to 99% by mass of the whole solvent contained in the film forming liquid. Among them, 10 to 99 mass% is preferable. More preferably, it is 20 to 95% by mass.
  • a compound having an epoxy group, an isocyanate group, an oxetane group, a cyclocarbonate group, a hydroxy group, a hydroxyalkyl group or a lower alkoxyalkyl group is introduced into the film forming liquid. You can also do it. In that case, it is necessary for the compound to have two or more of these groups.
  • crosslinkable compound having an epoxy group or an isocyanate group are described in International Publication WO 201 4/1 7 1 493 (published 201 4.10.23), pages 63 to 64.
  • examples thereof include crosslinkable compounds having a group or an isocyanate group.
  • crosslinkable compound having an oxetane group are represented by the formulas shown on pages 58 to 59 of International Publication WO ⁇ /0201 1/1 3275 1 (201 1.1.0.27 publication). ⁇ Crosslinkable compounds of the formula [4 ! ⁇ ] are mentioned.
  • crosslinkable compound having a cyclocarbonate group examples include compounds represented by the formula [5-1] listed on pages 76 to 82 of International Publication No. 0201 2/01 4898 (published on February 2, 2.2). ⁇ Crosslinkable compounds of the formula [5-42] are mentioned. Specific examples of the crosslinkable compound having a hydroxyl group, a hydroxyalkyl group and a lower alkoxyalkyl group are described on pages 65 to 66 of International Publication WO 201 4/1 7 1 493 (2 01 4.1 0.23 publication).
  • the content of the crosslinkable compound in the film forming liquid is preferably 0.1 to 100 parts by mass with respect to 100 parts by mass of all the polymer components.
  • 0.1 to 50 parts by mass is more preferable with respect to 100 parts by mass of all polymer components, and most preferably 1 to 30 parts by mass. Is a department.
  • the film-forming liquid a compound that improves the uniformity of the film thickness and the surface smoothness when the film-forming liquid is applied can be used unless the effects of the present invention are impaired. Furthermore, when an electrode substrate or the like is provided on the film, a compound or the like that improves the adhesion between the film and the electrode substrate can be used.
  • Examples of the compound that improves the uniformity of the film thickness and the surface smoothness include a fluorine-based surfactant, a silicone-based surfactant, and a nonionic surfactant. Specific examples thereof include the surfactants described on page 67 of International Publication WO 201 4/1 7 1 493 (201 4.1 0.23 publication). Further, the use ratio thereof is preferably 0.01 to 2 parts by mass based on 100 parts by mass of all the polymer components contained in the film forming liquid. More preferred is 0.01 to 1 part by mass.
  • a dielectric or conductive substance for the purpose of changing the electric properties such as the dielectric constant and conductivity of the film may be added to the film forming liquid.
  • the step ( ⁇ ) is the step of applying the film forming liquid to one surface of the first substrate.
  • the application method can be a conventionally known method, for example, screen printing, offset printing, flexographic printing. ! ⁇ , inkjet method, dip method, mouth ⁇ 2020/175 517 18 (:171? 2020 /007616
  • the rucoater method, the slit coater method, the spinner method, the spray method and the like can be mentioned, but the method is not limited to these, and can be appropriately selected depending on the type of substrate and the intended film thickness of the resin film.
  • Step (v) is a step of heating the coated surface obtained in step (II I) to form a film on the first substrate.
  • Heating that is, heat treatment, depends on the type of substrate used, the film forming liquid used, particularly the solvent used for the film forming liquid, and the temperature range where the liquid crystallinity of the film is expressed.
  • Circular talent, ⁇ (Infrared) Can be heat-treated with a mold.
  • the heating conditions depend on the polymer used, the film-forming liquid used, particularly the solvent used for the film-forming liquid, the temperature range where the liquid crystallinity of the film is expressed, and the like. It is preferable that a plurality of regions having a plurality of are formed and that the heating be performed so that the orientations of the plurality of polymers are aligned in the regions.
  • the polymer is heated to a temperature range in which a liquid crystal phase is exhibited, and more specifically, 80 to 350°C, more preferably 100 to 300°C.
  • yo Ri preferably 1 2 0 ⁇ 3 0 0 ° ⁇ , most preferably 1 2 0 ⁇ 2 5 0 ° good to you warmed at ⁇ .
  • the film of the present invention that is, a film having a polymer having a specific partial structure, particularly a region having a plurality of the polymers
  • a film having a plurality of regions in which the orientations of the plurality of macromolecules are aligned can be formed on the first substrate.
  • the thickness of the film depends on, for example, the use of the film, but is, for example, 5 to 500 nm, preferably More preferably, it is from 10 to 250, and the method for producing a membrane of the present invention may include steps other than the steps (C) to (IV).
  • a step of separating the film of the present invention from the first substrate may be provided after the step (C), and a step of making the film of the present invention a self-supporting film may be provided. ⁇ 2020/175 517 19 (:171? 2020/007616 Example
  • Liquid crystal with physical properties of !_ 3 ( Ding: 102 ° 0, 8 ⁇ :a. 4, 8 ⁇ : ⁇ .236)
  • Liquid crystal with physical properties of !_4 (Cho: 90°, eight ⁇ : a. 4, eight: ⁇ .299)
  • Table 1 shows the liquid crystal alignment treatment agents obtained in the synthesis examples.
  • the liquid crystal alignment treatment agent obtained by the method of Synthesis Example was pressure-filtered with a membrane filter having a pore size of 1.
  • the obtained solution was spin-coated on a glass substrate (vertical: 300111111, lateral: 400!, thickness: 0.0) washed with pure water and isopropyl alcohol. At 80 ° ⁇ at 120 seconds, I
  • a glass substrate with a liquid crystal alignment film having a film thickness of 100 mm was obtained by performing heat treatment at 150 ° C. for 30 minutes in an 8 (infrared) type heat circulation type clean oven.
  • the liquid crystallinity of the obtained glass substrate with a liquid crystal alignment film was confirmed using the above-mentioned polarizing microscope with a cooling and heating stage for a microscope. Specifically, a liquid crystal phase-observed optical structure as shown in Fig. 1 was observed under a polarizing microscope. ⁇ 2020/175 517 25 ⁇ (: 171-1? 2020/007616
  • Crystallinity was defined, and those not observed were defined as having no liquid crystallinity.
  • a liquid crystal alignment film was sampled from the glass substrate with the liquid crystal alignment film obtained above, and the endothermic peak (liquid crystal phase/liquid crystal phase transition was measured using the differential scanning calorimeter (0 30). And the endothermic peak (which also indicates an isotropic phase transition of liquid crystal phase. Also referred to as Ding 2.) at that time, the rate of temperature increase/decrease is 10 ° ⁇ /min. However, Ding 1 and Ding 2 were obtained from the second skiyan.
  • the liquid crystal alignment treatment agent obtained by the method of Synthesis Example was pressure-filtered with a membrane filter having a pore size of 1.
  • the obtained solution was washed with pure water and water (isopropyl alcohol).
  • ⁇ Glass substrate with electrodes vertical: 40, horizontal: 3001 111, thickness: ⁇ .
  • a glass substrate with a liquid crystal alignment film of was obtained.
  • the surface shape of the obtained liquid crystal alignment film-attached glass substrate was observed using the above-mentioned scanning electron microscope (3M IV!). Specifically, by observing 3M 1 ⁇ /1, the size of one domain as shown in Fig. 2 is 400 to 700n. ⁇ 2020/175 517 26 ⁇ (:171? 2020 /007616
  • the polydomain structure refers to a structure having a plurality of specific polymers and having a plurality of regions in which the orientations of the plurality of polymers are aligned.
  • Table 3 summarizes the results of the 3M IV! observation.
  • those with a polydomain structure as shown in Figure 2 are marked with ⁇
  • those with no polydomain structure as shown in Figure 3 are marked with X.
  • a liquid crystal cell was obtained by leaving it at 23 ° for 15 hours.
  • the obtained liquid crystal cell was subjected to no voltage application ( ⁇ V) and voltage application (AC drive: 20 V). (Haze) was measured.
  • the measurement is based on I 3 ⁇ 7 1 3 6, and the higher the value of 1 to 1 3 2 6 when no voltage is applied, the better the scattering characteristics, and the lower the value of !! 3 2 6 when a voltage is applied, the more transparent it is. It is said that it has excellent properties.
  • Table 4 summarizes the measurement results for ⁇ .
  • liquid crystal alignment film exhibits liquid crystallinity, and excellent optical characteristics, that is, Haze in the absence of voltage application It was high, and H aze was low under voltage application.
  • the expression of liquid crystallinity is a comparison between Examples 1 to 3 and Comparative Examples 1 to 4, and the optical characteristics are a comparison between Examples 8 to 14 and Comparative Examples 9 to 12. ..
  • the present liquid crystal display device can be used for a liquid crystal display intended for display, and also for a dimming window or an optical shutter device for controlling the blocking and transmission of light.
  • a plastic substrate can be used.
  • this element can be used as a light guide plate of a display device such as an LCD (Liquid Crystal Display) or a OLED (Organic Light-emitting Diode) display, or a back plate of a transparent display using these displays.

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Abstract

The present invention provides: a film comprising a macromolecule having a specific structure, in particular, a film comprising a plurality of regions that have a plurality of the macromolecule, the plurality of polymers within the regions being aligned in orientation; and a method for manufacturing the same. The present invention provides a film comprising a plurality of macromolecules that have at least one partial structure A selected from a group A consisting of formulas [A1]–[A4], and at least one partial structure B selected from a group B consisting of formulas [B1]–[B7]. [Chem. 1]

Description

明 細 書 Specification
発明の名称 : 膜及びその製造方法 Title of invention: Membrane and method for producing the same
技術分野 Technical field
[0001] 本発明は、 特定の構造を有する重合体を複数有する領域であって該領域内 の該複数の重合体の配向がそろっている領域を複数有してなる膜、 及び該膜 の製造方法に関する。 The present invention relates to a film having a plurality of regions having a plurality of polymers having a specific structure, and a plurality of regions in which the orientations of the plurality of polymers are aligned, and a process for producing the film. Regarding the method.
背景技術 Background technology
[0002] TN (Twisted Nematic) モードの液晶表示素子が実用化されている。 こ のモードでは、 液晶の旋光特性を利用して、 光のスイッチングを行うために 、 偏光板を用いる必要があるが、 偏光板を用いると光の利用効率が低くなる 偏光板を用いない液晶表示素子として、 液晶の透過状態 (透明状態ともい う) と散乱状態との間でスイッチングを行う素子がある。 一般的には、 高分 子分散型液晶 (P D LC (Polymer Dispersed Liquid Crystal) ともいう 。 ) や高分子ネッ トワーク型液晶 (P N LC (Polymer Network Liquid C rystal) ともいう。 ) を用いたものが知られている。 [0002] A TN (Twisted Nematic) mode liquid crystal display device has been put into practical use. In this mode, it is necessary to use a polarizing plate in order to switch the light by utilizing the optical rotatory property of the liquid crystal, but the use efficiency of the light becomes low when the polarizing plate is used. As an element, there is an element that switches between a transparent state (also called a transparent state) and a scattering state of liquid crystal. Generally, those using high molecular dispersed liquid crystal (also referred to as PD LC (Polymer Dispersed Liquid Crystal)) or polymer network liquid crystal (PN LC (Polymer Network Liquid Crystal)) are used. Are known.
これらの液晶表示素子では、 電極を備えた一対の基板の間に、 紫外線によ り重合する重合性化合物を含む液晶組成物を配置し、 紫外線の照射により液 晶組成物の硬化を行い、 液晶と重合性化合物の硬化物 (例えば、 ポリマーネ ッ トワーク) との複合体を形成する。 そして、 この液晶表示素子では、 電圧 の印加により、 液晶の散乱状態と透過状態が制御される (特許文献 1、 2参 照) 。 In these liquid crystal display elements, a liquid crystal composition containing a polymerizable compound that is polymerized by ultraviolet rays is placed between a pair of substrates equipped with electrodes, and the liquid crystal composition is cured by irradiation with ultraviolet rays. And a cured product of a polymerizable compound (for example, a polymer network) are formed. Then, in this liquid crystal display element, the scattering state and the transmission state of the liquid crystal are controlled by applying a voltage (see Patent Documents 1 and 2).
先行技術文献 Prior art documents
特許文献 Patent literature
[0003] 特許文献 1 : 日本特許 3552328号公報。 Patent Document 1: Japanese Patent No. 3552328.
特許文献 2 : 日本特許 4630954号公報。 Patent Document 2: Japanese Patent No. 4630954.
発明の概要 〇 2020/175517 2 卩(:171? 2020 /007616 Summary of the invention 〇 2020/175517 2 卩 (:171? 2020 /007616
発明が解決しようとする課題 Problems to be Solved by the Invention
[0004] 上述の 0 1_(3や 1_(3の液晶表示素子は、 液晶組成物中の重合性化合 物の硬化を行うため、 紫外線照射工程が必要となる。 [0004] In the above liquid crystal display devices of 0_(3 and 1_(3), since the polymerizable compound in the liquid crystal composition is cured, an ultraviolet irradiation step is required.
_方、 液晶組成物中に重合性化合物を用いることなく、 且つ、 紫外線照射 工程が不要な透過散乱型の液晶表示素子を提供することが要望された。 On the other hand, it has been desired to provide a transmission-scattering liquid crystal display device that does not use a polymerizable compound in the liquid crystal composition and does not require an ultraviolet irradiation step.
本発明の目的は、 上記液晶表示素子を提供するにあたって見出した、 特定 の構造を有する重合体を複数有する領域であって該領域内の該複数の重合体 の配向がそろっている領域を複数有してなる膜を提供することにある。 また 、 本発明の目的は、 該膜の製造方法を提供することにある。 The object of the present invention is to provide a plurality of regions, which are found in providing the above liquid crystal display device, having a plurality of polymers having a specific structure, and in which the orientations of the plurality of polymers are aligned. To provide a film made of Another object of the present invention is to provide a method for producing the film.
課題を解決するための手段 Means for solving the problem
[0005] 本発明者は、 以下の要旨を有する本発明を見出した。 [0005] The present inventor has found the present invention having the following gist.
< 1 > 下記式 [ 1] 〜式 [ 4] (式中、 3 1〜3 3はそれぞれ独 立して、 1〜 1 2の整数を示す。 3 4は 1〜 5の整数を示す。
Figure imgf000004_0001
<1> Formula [1] to Formula [4] (In the formula, 3 1 to 3 3 independently represent the integers 1 to 12. 3 4 represent the integers 1 to 5.
Figure imgf000004_0001
それぞれ独立して、 単結合又は炭素数 1〜 1 2のアルキレン基を示す。 [¾八~ はそれぞれ独立して、 水素原子、 炭素数 1〜 5のアルキル基又は炭素数 1 〜 5のアルコキシ基から選ばれる少なくとも 1種を示す。 ) からなる群八か ら選ばれる少なくとも 1種の部分構造八と、 下記式 [巳 1] 〜式 [巳 7] ( 式中、 3 ~ 3 °はそれぞれ独立して、 炭素数 1〜 3のアルキル基を示す。 n 1〜n 4はそれぞれ独立して、 〇〜 2の整数を示す。 ) からなる群巳から選 ばれる少なくとも 1種の部分構造巳とを有する高分子を複数有してなる膜。 Each independently represents a single bond or an alkylene group having 1 to 12 carbon atoms. [Each of each independently represents at least one selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms. ) And at least one substructure 8 selected from the group consisting of the following formulas [Mission 1] to [Mission 7] (wherein 3 to 3° are each independently a carbon number of 1 to 3). Represents an alkyl group, n 1 to n 4 each independently represents an integer of 0 to 2) and has a plurality of polymers having at least one kind of partial structure selected from the group consisting of film.
[0006] [0006]
〇 2020/175517 卩(:17 2020 /007616 〇 2020/175517 卩(: 17 2020/007616
[化 1] [Chemical 1]
Figure imgf000005_0001
Figure imgf000005_0001
[0007] <2> 上記式 [ 1] 〜式 [ 4] (式中、 3 1〜33はそれぞれ独立 して、 1〜 1 2の整数を示す。 34は 1〜 5の整数を示す。
Figure imgf000005_0002
[0007] <2> Formula [1] to Formula [4] (In the formula, 31 to 33 each independently represent an integer of 1 to 12. 34 represents an integer of 1 to 5.
Figure imgf000005_0002
れぞれ独立して、 単結合又は炭素数 1〜 1 2のアルキレン基を示す。
Figure imgf000005_0003
Each independently represents a single bond or an alkylene group having 1 to 12 carbon atoms.
Figure imgf000005_0003
°はそれぞれ独立して、 水素原子、 炭素数 1〜 5のアルキル基又は炭素数 1〜 5のアルコキシ基から選ばれる少なくとも 1種を示す。 ) からなる群八から 選ばれる少なくとも 1種の部分構造八と、 下記式 [巳 1] 〜式 [巳 7] (式 中、 3 ~3°はそれぞれ独立して、 炭素数 1〜 3のアルキル基を示す。 门 1 〜n 4はそれぞれ独立して、 〇〜 2の整数を示す。 ) からなる群巳から選ば れる少なくとも 1種の部分構造巳とを有する高分子を複数有してなる膜の製 造方法であって、 Each independently represents at least one selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms. And at least one substructure 8 selected from the group consisting of the following formulas [M1] to [M7] (in the formula, 3 to 3° are each independently an alkyl group having 1 to 3 carbon atoms). A group consisting of a plurality of polymers having at least one kind of partial structure selected from the group consisting of: 1 to n 4 each independently represent an integer of 0 to 2. Manufacturing method of
(丨) 第 1の基板を準備する工程; (丨) Step of preparing the first substrate;
( I I) 前記高分子又はその前駆体を有する膜形成用液を準備する工程; (II) a step of preparing a film-forming liquid containing the polymer or its precursor;
( I I 丨) 前記膜形成用液を前記第 1の基板の片面に塗布する工程;及び ( I V) 塗布面を加温する工程; (IV) A step of applying the film forming liquid on one surface of the first substrate; and (IV) A step of heating the applied surface;
を有する、 上記方法。 Having the above method.
発明の効果 〇 2020/175517 4 卩(:171? 2020 /007616 Effect of the invention 〇 2020/175517 4 卩 (:171? 2020 /007616
[0008] 本発明により、 特定の構造を有する重合体を複数有する領域であって該領 域内の該複数の重合体の配向がそろっている領域を複数有してなる膜を提供 することができる。 また、 本発明により、 該膜の製造方法を提供することが できる。 [0008] According to the present invention, it is possible to provide a film having a plurality of regions having a plurality of polymers having a specific structure and having a plurality of regions in which the orientations of the plurality of polymers are aligned. .. In addition, the present invention can provide a method for producing the film.
図面の簡単な説明 Brief description of the drawings
[0009] [図 1]実施例 1で得られた液晶配向膜付きのガラス基板の膜の偏光顕微鏡像 ( 膜が液晶性を示す) である。 [0009] [Fig. 1] Fig. 1 is a polarizing microscope image (a film shows liquid crystallinity) of a film of a glass substrate having a liquid crystal alignment film obtained in Example 1.
[図 2]実施例 4で得られた液晶配向膜付きのガラス基板の膜の走査型電子顕微 鏡 (3巳 IV!) 像である。 [FIG. 2] A scanning electron microscope (3M IV!) image of the film of the glass substrate with the liquid crystal alignment film obtained in Example 4.
[図 3]実施例 4で得られた液晶配向膜付きのガラス基板の膜の走査型電子顕微 鏡 (3巳 IV!) 像である。 FIG. 3 is a scanning electron microscope (3M IV!) image of the film of the glass substrate with the liquid crystal alignment film obtained in Example 4.
発明を実施するための形態 MODE FOR CARRYING OUT THE INVENTION
[0010] 本願は、 新規な膜及び該膜の製造方法を提供する。 [0010] The present application provides a novel membrane and a method for manufacturing the membrane.
以下、 本願に記載する発明について、 順に説明する。 Hereinafter, the inventions described in the present application will be described in order.
<膜> <Membrane>
本願は、 上記式 [八 1] 〜式 [八 4] (式中、
Figure imgf000006_0001
はそれぞれ独立 して、 1〜 1 2の整数を示す。 3 4は 1〜 5の整数を示す。
Figure imgf000006_0002
The present application provides the above formula [8 1] to formula [8 4] (where
Figure imgf000006_0001
Are each independently an integer of 1 to 12. 3 4 represents an integer of 1 to 5.
Figure imgf000006_0002
れぞれ独立して、 単結合又は炭素数 1〜 1 2のアルキレン基を示す。
Figure imgf000006_0003
Each independently represents a single bond or an alkylene group having 1 to 12 carbon atoms.
Figure imgf000006_0003
°はそれぞれ独立して、 水素原子、 炭素数 1〜 5のアルキル基又は炭素数 1〜 5のアルコキシ基から選ばれる少なくとも 1種を示す。 ) からなる群八から 選ばれる少なくとも 1種の部分構造八と、 下記式 [巳 1] 〜式 [巳 7] (式 中、 3 ~ 3 °はそれぞれ独立して、 炭素数 1〜 3のアルキル基を示す。 门 1 〜n 4はそれぞれ独立して、 〇〜 2の整数を示す。 ) からなる群巳から選ば れる少なくとも 1種の部分構造巳とを有する高分子を複数有してなる膜を提 供する。 Each independently represents at least one selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms. And at least one partial structure 8 selected from the group consisting of the following formulas [M1] to [M7] (wherein 3 to 3° are each independently an alkyl group having 1 to 3 carbon atoms). A group consisting of a plurality of polymers having at least one kind of partial structure selected from the group consisting of: 1 to n 4 each independently represent an integer of 0 to 2. I will provide a.
[001 1] 上述の高分子としては、 特に限定されないが、 アクリルポリマー、 メタク リルポリマー、 ノボラック樹脂、 エポキシ樹脂、 ポリヒドロキシスチレン、 ポリイミ ド前駆体、 ポリイミ ド、 ポリアミ ド、 ポリエステル、 ポリエーテル 〇 2020/175517 5 卩(:171? 2020 /007616 [001 1] The above-mentioned polymers are not particularly limited, but include acrylic polymers, methacrylic polymers, novolac resins, epoxy resins, polyhydroxystyrenes, polyimide precursors, polyimides, polyamides, polyesters, polyethers. 〇 2020/175517 5 卩(: 171-1? 2020/007616
、 ポリウレタン、 ポリ (エステルアミ ド) 、 ポリ (エステルーイミ ド) 、 ポ リ (エステルー無水物) 、 ポリ (エステルーカーボナート) 、 セルロース又 はポリシロキサンからなる群から選ばれる少なくとも 1種であるのがよい。 好ましくは、 ポリイミ ド前駆体又はポリイミ ド (総称してポリイミ ド系高分 子ともいう。 ) であるのがよい。 At least one selected from the group consisting of polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride), poly(ester-carbonate), cellulose or polysiloxane. Good. Preferably, it is a polyimide precursor or polyimide (collectively referred to as polyimide-based polymer).
また、 上述の高分子は、 液晶性高分子を含むのがよく、 好ましくは上述の 高分子が液晶性高分子であるのがよい。 The above-mentioned polymer preferably contains a liquid crystalline polymer, and preferably the above-mentioned polymer is a liquid crystalline polymer.
例えば、 液晶性高分子は、 8 0〜 3 5 0 °〇、 好ましくは 1 0 0〜 3 0 0 °〇 、 より好ましくは 1 2 0〜 2 5 0 °〇の範囲で液晶性を発現するのがよい。 [0012] ここで、 ポリイミ ド前駆体とは、 下記式 [八] の構造を有する。 For example, the liquid crystalline polymer exhibits liquid crystallinity in the range of 80 to 350 ° , preferably 100 to 300 ° , and more preferably 120 to 250°. Is good. [0012] Here, the polyimide precursor has a structure of the following formula [8].
式 [ ] において、
Figure imgf000007_0001
は 4価の有機基を示す。
Figure imgf000007_0002
2は 2価の有機基を示す 。 八1及び 2はそれぞれ、 水素原子又は炭素数 1〜 8のアルキル基を示す。 八3及び はそれぞれ、 水素原子、 炭素数 1〜 5のアルキル基又はアセチル 基を示す。 门は正の整数を示す。
In the formula [],
Figure imgf000007_0001
Represents a tetravalent organic group.
Figure imgf000007_0002
2 represents a divalent organic group. Each eight 1 and 2 is a hydrogen atom or an alkyl group having a carbon number of 1-8. And 8 and 3 each represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an acetyl group. The door indicates a positive integer.
[0013] [化 2] [0013] [Chemical 2]
Figure imgf000007_0003
Figure imgf000007_0003
[0014] ジアミン成分としては、 分子内に第一級又は第二級のアミノ基を 2個有す るジアミンであり、 テトラカルボン酸成分としては、 テトラカルボン酸化合 物、 テトラカルボン酸二無水物、 テトラカルボン酸ジハライ ド化合物、 テト ラカルボン酸ジアルキルエステル化合物又はテトラカルボン酸ジアルキルエ ステルジハライ ド化合物が挙げられる。 [0014] The diamine component is a diamine having two primary or secondary amino groups in the molecule, and the tetracarboxylic acid component is a tetracarboxylic oxide compound or a tetracarboxylic dianhydride. , A tetracarboxylic acid dihalide compound, a tetracarboxylic acid dialkyl ester compound or a tetracarboxylic acid dialkyl ester dihalide compound.
[0015] ポリイミ ド系重合体は、 下記式 [巳] のテトラカルボン酸二無水物と下記 式 [0] のジアミンとを原料とすることで、 比較的簡便に得られるという理 由から、 下記式 [口] の繰り返し単位の構造式から成るポリアミ ド酸又は該 ポリアミ ド酸をイミ ド化させたポリイミ ドが好ましい。 [0015] From the reason that the polyimide-based polymer can be obtained relatively easily by using the tetracarboxylic dianhydride of the following formula [M] and the diamine of the following formula [0] as the raw materials, A polyamic acid having a structural formula of a repeating unit of the formula [or] or a polyimide obtained by imidizing the polyamic acid is preferable.
なお、 式中、
Figure imgf000007_0004
は、 式 [八] で定義したものと同じである。 \¥0 2020/175517 卩(:171? 2020 /007616
In the formula,
Figure imgf000007_0004
Is the same as defined in equation [8]. \\0 2020/175517 卩(: 171? 2020/007616
[0016] [化 3] [0016] [Chemical Formula 3]
Figure imgf000008_0001
Figure imgf000008_0001
[0017] また、 通常の合成手法で、 前記で得られた式 [口] の重合体に、 式 [八] 中の 1及び 2の炭素数 1〜 8のアルキル基、 及び式 [ ] 中の 3及び八4 の炭素数 1〜 5のアルキル基又はアセチル基を導入することもできる。 [0017] Further, according to a usual synthetic method, the polymer of the formula [mouth] obtained above is added to the polymer of the formula [8] having 1 and 2 alkyl groups having 1 to 8 carbon atoms, and in the formula [] 3 and eight 4 alkyl group or an acetyl group with carbon number from 1 to 5 can also be introduced.
[0018] 高分子は、 下記式 [八 1] 〜 [八 4] から選ばれる少なくとも 1種の部分 構造 (特定部分構造 (八) ともいう。 ) を有するのがよく、 好ましくは式 [ 八 4] の部分構造を有するのがよい。 [0018] The polymer preferably has at least one kind of partial structure (also referred to as a specific partial structure (8)) selected from the following formulas [81] to [84], and preferably has the formula [84] ] It is good to have a partial structure of.
下記式 [八 1] ~ [八 4] において、
Figure imgf000008_0002
はそれぞれ独立して、 1 〜 1 2、 好ましくは 1〜 8、 より好ましくは 1〜 6の整数を示す。
In the following formulas [8 1] to [8 4],
Figure imgf000008_0002
Each independently represents an integer of 1 to 12, preferably 1 to 8, and more preferably 1 to 6.
3 4は 1〜 5、 好ましくは 1〜 3、 より好ましくは 1〜 2の整数を示す。
Figure imgf000008_0003
して、 単結合又は炭素数 1〜 1 2、 好ましくは 1〜 6、 より好ましくは 1〜 4のアルキレン基を示す。
34 represents an integer of 1 to 5, preferably 1 to 3, and more preferably 1 to 2.
Figure imgf000008_0003
A single bond or an alkylene group having 1 to 12 carbon atoms, preferably 1 to 6 carbon atoms, and more preferably 1 to 4 carbon atoms.
はそれぞれ独立して、 水素原子、 炭素数 1〜 5、 好ましくは 1〜 3のアルキル基又はアルコキシ基から選ばれる少なくとも 1種を示し、 更に より好ましくは炭素数 1又は 2のアルキル基であるのがよい。 Each independently represents at least one selected from a hydrogen atom, a C1 to C5, preferably a C1 to C3 alkyl group or an alkoxy group, and more preferably a C1 or C2 alkyl group. Is good.
[0019] [化 4] [0019] [Chemical 4]
Figure imgf000008_0004
Figure imgf000008_0004
[0020] また、 高分子は、 下記式 [巳 1] 〜 [巳 7] から選ばれる少なくとも 1種 の部分構造 (特定部分構造 (巳) ともいう。 ) を有するのがよく、 好ましく 〇 2020/175517 7 卩(:171? 2020 /007616 [0020] Further, the polymer preferably has at least one kind of partial structure (also referred to as a specific partial structure (Mitsumi)) selected from the following formulas [Minami 1] to [Minami 7], and is preferable. 〇 2020/175 517 7 卩(: 171-1? 2020/007616
は、 式 [巳 1] 、 式 [巳 4] 又は式 [巳 7] であるのがよい。 Is preferably the formula [Mis 1], the formula [Mis 4] or the formula [Mis 7].
式 [巳 1] 〜 [巳 7] において、 〇はそれぞれ独立して、 炭素数 1 〜 3、 好ましくは 1〜 2のアルキル基を示す。 n 1〜n 4はそれぞれ独立し て、 〇〜 2、 好ましくは 0又は 1の整数を示す。 芳香環上の水素は、 _〇1~1 3 、 一〇 3、 ー 、 一〇1\1、 一〇〇〇 1~1、 一 1\1〇2、 一 !·!—巳〇〇、 または — ( 6〇〇) 2で置き換えられていてもよい (巳〇〇は、 ㊀ 「 1:—ブトキ シカルボニル基を表す) 。 In the formulas [Mis 1] to [Mis 7], ∘ each independently represents an alkyl group having 1 to 3 carbon atoms, preferably 1 to 2 carbon atoms. n 1 to n 4 each independently represent an integer of 0 to 2, preferably 0 or 1. Hydrogen on the aromatic ring, _〇_1 to 1 3, ten 3, over one Rei_1 \ 1, one thousand 1 to 1, one 1 \ 1_Rei 2, one-! - snake hundred, Or — (600) 2 may be substituted (where ___ is ㊀ “1:-butoxycarbonyl group”).
[0021] [化 5] [0021] [Chemical 5]
Figure imgf000009_0001
Figure imgf000009_0001
[0022] 特に、 高分子は、 下記式 [八 1] 〜式 [八4] からなる群八から選ばれる 少なくとも 1種の部分構造八と、 下記式 [巳 1] 〜式 [巳 7] からなる群巳 から選ばれる少なくとも 1種の部分構造巳を有するポリイミ ド系重合体であ ることが好ましい。 [0022] In particular, the polymer is composed of at least one partial structure 8 selected from the group 8 consisting of the following formulas [8 1] to [8 4], and the following formulas [1] to [7] It is preferable that the polymer is a polyimide-based polymer having at least one kind of partial structure selected from the group consisting of
[0023] 特定部分構造 ( ) 及び特定部分構造 (巳) を、 ポリイミ ド系重合体に導 入する方法としては、 前記式 [ 1] 〜式 [ 4] 又は前記式 [巳 1] 〜式 [巳 7] の部分構造を有するジアミンを含むジアミン成分と、 式 [八 1] 〜 式 [八 4] 又は式 [巳 1] 〜式 [巳 7] の部分構造を有するテトラカルボン 酸を含むテトラカルボン酸成分を用いることが好ましい。 [0023] As a method for introducing the specific partial structure () and the specific partial structure (Mi) into the polyimide polymer, the formula [1] to the formula [4] or the formula [M1] to the formula [ A diamine component containing a diamine having a partial structure of [7] and a tetracarboxylic acid containing a tetracarboxylic acid having a partial structure of the formula [8 1] to [8] or the formula [1] to [7] It is preferable to use an acid component.
[0024] 具体的には、 特定部分構造 ( ) を有するジアミンと特定部分構造 (巳) を有するテトラカルボン酸を用いる場合と、 特定部分構造 (巳) を有するジ アミンと特定部分構造 (八) を有するテトラカルボン酸を用いる場合が挙げ られる。 [0024] Specifically, a diamine having a specific partial structure () and a tetracarboxylic acid having a specific partial structure (M) are used, and a diamine having a specific partial structure (M) and a specific partial structure (8) are used. The case where a tetracarboxylic acid having is used is mentioned.
特定部分構造 (八) を有するジアミン (特定ジアミン (八) ともいう。 ) 〇 2020/175517 8 卩(:171? 2020 /007616 A diamine having a specific partial structure (8) (also referred to as a specific diamine (8).) 〇 2020/175 517 8 卩 (:171? 2020 /007616
と特定部分構造 (巳) を有するテトラカルボン酸 (特定テトラカルボン酸 ( B) ともいう。 ) を用いる場合、 それぞれ、 下記式 [1 八] のジアミン及び 式 [2巳] のテトラカルボン酸を用いることが好ましい。 And a tetracarboxylic acid having a specific partial structure (Minami) (also referred to as a specific tetracarboxylic acid (B)), a diamine of the following formula [18] and a tetracarboxylic acid of the formula [2] are used, respectively. It is preferable.
[0025] 式 [1 八] において、 X 1及び X 3はそれぞれ独立して、 単結合、 一〇一、 -〇〇一、 一〇〇〇一、 一〇〇〇一、 一 C〇N H -、 一1\1 1~1〇〇一又は一 ! ! -から選ばれる少なくとも 1種を示す。 なかでも、 単結合、 一〇一、 一〇 〇一、 一〇〇〇一又は一〇〇〇一が好ましい。 [0025] In the formula [18], X 1 and X 3 are each independently a single bond, 101, -001, 100001, 100001, 1CNH- , 1 \ 1 1 ~ 1 x 0 1 or 1 !!-indicates at least one selected from. Among them, a single bond, 101, 1001, 100001 or 100001 is preferable.
X 2は前記式 [八 1] 〜式 [八 4] から選ばれる少なくとも 1種を示す。 な かでも、 液晶表示素子の光学特性の点から、 式 [ 1] 又は式 [ 4] が好 ましい。 また、 式 [八 1] 〜式 [八 4]
Figure imgf000010_0001
X 2 represents at least one selected from the above formula [8 1] to formula [8 4]. Above all, the formula [1] or the formula [4] is preferable from the viewpoint of the optical characteristics of the liquid crystal display device. Also, formula [8 1] to formula [8 4]
Figure imgf000010_0001
の詳細及び好ましいものは、 前記の通りである。 The details and preferences of are as described above.
[0026] 式 [2巳] において、 丫1及び丫5はそれぞれ独立して、 芳香環、 脂環式基 又は複素環基から選ばれる少なくとも 1種を示す。 なかでも、 芳香環又は脂 環式基が好ましい。 [0026] In the formula [2], each of 1 and 5 independently represents at least one selected from an aromatic ring, an alicyclic group and a heterocyclic group. Of these, an aromatic ring or an alicyclic group is preferable.
2及び丫4はそれぞれ独立して、 単結合、 一〇一、 一 0〇一、 - 0 0 0 - 、 一〇〇〇一、
Figure imgf000010_0003
〇一又は一
Figure imgf000010_0002
ら選ばれる少な くとも 1種を示す。 なかでも、 単結合、 一〇一、 一〇〇一、 一〇〇〇一又は — 0 0〇—が好ましい。
2 and 4 are each independently a single bond, 101, 1001, -0000 -, 1001,
Figure imgf000010_0003
〇 one or one
Figure imgf000010_0002
Indicates at least one selected from Of these, a single bond, 101, 1001, 100001 or —0.000— is preferable.
3は前記式 [巳 1] 〜式 [巳 7] から選ばれる少なくとも 1種を示す。 な かでも、 液晶表示素子の光学特性の点から、 式 [巳 1] 、 式 [巳 4] 又は式 [巳 7] が好ましい。 また、 式 [巳 1] 〜式 [巳 7] 中の 3 〜3〇及び n 1 〜11 4の詳細及び好ましいものは、 前記の通りである。 Reference numeral 3 represents at least one selected from the above formulas [Mis 1] to [Mis 7]. Among them, from the viewpoint of the optical characteristics of the liquid crystal display device, the formula [Min 1], the formula [Min 4] or the formula [Min 7] is preferable. Further, the details and preferred values of 3 to 30 and n 1 to 114 in the formulas [Mis 1] to [Mis 7] are as described above.
n 5及び n 6はそれぞれ独立して、 0又は 1の整数を示す。 n 5 and n 6 each independently represent an integer of 0 or 1.
また、 n 5及び n 6が 0の整数の場合、 式 [巳 1] 〜式 [巳 7] の構造は テトラカルボン酸の結合手と直接結合しているものとする。 Further, when n 5 and n 6 are integers of 0, the structures of the formulas [Mis 1] to [Mis 7] are assumed to be directly bonded to the bond of the tetracarboxylic acid.
[0027] 〇 2020/175517 9 卩(:171? 2020 /007616 [0027] 〇 2020/175 517 9 卩(: 171-1? 2020/007616
Figure imgf000011_0001
Figure imgf000011_0001
[0028] 特定ジアミン (八) と特定テトラカルボン酸 (巳) を用いた場合のそれぞ れの使用割合は、 次のものが好ましい。 具体的には、 特定ジアミン (八) の 使用割合は、 液晶表示素子の光学特性の点から、 ジアミン成分全体に対し 3 〇〜 1 0 0モル%が好ましく、 5 0 ~ 1 0 0モル%がより好ましい。 特定テ トラカルボン酸 (巳) の使用割合は、 液晶表示素子の光学特性の点から、 テ トラカルボン酸成分全体に対し、 3 0〜 1 0 0モル%が好ましく、 5 0〜 1 0 0モル%がより好ましい。 また、 特定ジアミン (八) 及び特定テトラカル ボン酸 (巳) は、 それぞれ、 各特性に応じて、 1種類又は 2種類以上を混合 して使用できる。 [0028] The use ratio of each of the specific diamine (8) and the specific tetracarboxylic acid (Mitsumi) is preferably as follows. Specifically, the use ratio of the specific diamine (8) is preferably 30 to 100 mol%, and preferably 50 to 100 mol% with respect to the entire diamine component from the viewpoint of the optical characteristics of the liquid crystal display element. More preferable. From the viewpoint of the optical characteristics of the liquid crystal display element, the use ratio of the specific tetracarboxylic acid (Mitsumi) is preferably 30 to 100 mol %, and preferably 50 to 100 mol% based on the whole tetracarboxylic acid component. % Is more preferable. Further, the specific diamine (8) and the specific tetracarbonic acid (Mitsumi) can be used either individually or in combination of two or more, depending on their respective characteristics.
[0029] 特定部分構造 (巳) を有するジアミン (特定ジアミン (巳) ともいう。 ) と特定部分構造 (八) を有するテトラカルボン酸 (特定テトラカルボン酸 ( 八) ともいう。 ) を用いる場合、 それぞれ、 下記式 [1 巳] のジアミン及び 式 [2八] のテトラカルボン酸を用いることが好ましい。 [0029] When using a diamine having a specific partial structure (Mi) (also referred to as a specific diamine (Mi)) and a tetracarboxylic acid having a specific partial structure (8) (also referred to as a specific tetracarboxylic acid (8)), It is preferable to use a diamine of the following formula [1] and a tetracarboxylic acid of the following formula [2 8], respectively.
式 [1 巳] において、 X 4は前記式 [巳 1] 〜式 [巳 7] から選ばれる少な くとも 1種を示す。 なかでも、 光学特性の点から、 式 [巳 1] 、 式 [巳4] 又は式 [巳 7] が好ましい。 また、 式 [巳 1] 〜式 [巳 7] 中の 3 〜3 °及 び 1〜
Figure imgf000011_0002
4の詳細及び好ましいものは、 前記の通りである。
In the formula [1], X 4 represents at least one selected from the formulas [1] to [7]. Among them, from the viewpoint of optical characteristics, the formula [Mis 1], the formula [Mis 4] or the formula [Mis 7] is preferable. In addition, 3 to 3° and 1 to in expression [Mis 1] to [Mis 7]
Figure imgf000011_0002
The details and preferences of 4 are as described above.
[0030] また、 式 [2八] において、 丫 6及び丫 1 0はそれぞれ独立して、 芳香環、 脂 環式基又は複素環基から選ばれる少なくとも 1種を示す。 なかでも、 芳香環 又は脂環式基が好ましい。 [0030] Further, in the formula [28], each of 6 and 10 independently represents at least one selected from an aromatic ring, an alicyclic group and a heterocyclic group. Of these, an aromatic ring or an alicyclic group is preferable.
7及び丫 9はそれぞれ独立して、 単結合、 一〇一、 一 0〇一、 - 0 0 0 - 、 一〇〇〇一、
Figure imgf000011_0004
〇一又は一
Figure imgf000011_0003
ら選ばれる少な 〇 2020/175517 10 卩(:171? 2020 /007616
7 and 9 are each independently a single bond, 101, 1001, -0000-, 10011,
Figure imgf000011_0004
〇 one or one
Figure imgf000011_0003
Few to choose from 〇 2020/175517 10 卩(: 171-1? 2020/007616
くとも 1種を示す。 なかでも、 単結合、 一〇一、 一〇〇一、 一〇〇〇一又は — 0 0〇—が好ましい。 Indicates at least one species. Of these, a single bond, 101, 1001, 100001 or —0.000— is preferable.
8は前記式 [八 1] 〜式 [八 4] から選ばれる少なくとも 1種を示す。 な かでも、 液晶表示素子の光学特性の点から、 式 [八 4] が好ましい。 また、
Figure imgf000012_0001
Reference numeral 8 represents at least one selected from the formula [8 1] to the formula [8 4]. Among them, the formula [84] is preferable from the viewpoint of the optical characteristics of the liquid crystal display device. Also,
Figure imgf000012_0001
好ましいものは、 前記の通りである。 Preferred ones are as described above.
门 7及び n 8はそれぞれ独立して、 0又は 1の整数を示す。 Each of 7 and n 8 independently represents an integer of 0 or 1.
[0031 ] [化 7] [0031] [Chemical 7]
Figure imgf000012_0002
Figure imgf000012_0002
[0032] 特定ジアミン (巳) と特定テトラカルボン酸 (八) を用いた場合のそれぞ れの使用割合は、 次のものが好ましい。 [0032] The use ratio of each of the specific diamine (Mitsumi) and the specific tetracarboxylic acid (8) is preferably as follows.
具体的には、 特定ジアミン (巳) の使用割合は、 液晶表示素子の光学特性 の点から、 ジアミン成分全体に対し 3 0〜 1 0 0モル%が好ましく、 5 0〜 1 0 0モル%がより好ましい。 特定テトラカルボン酸 (八) の使用割合は、 液晶表示素子の光学特性の点から、 テトラカルボン酸成分全体に対し、 3 0 〜 1 0 0モル%が好ましく、 5 0 ~ 1 0 0モル%がより好ましい。 また、 特 定ジアミン (巳) 及び特定テトラカルボン酸 (八) は、 それぞれ、 各特性に 応じて、 1種類又は 2種類以上を混合して使用できる。 Specifically, the usage ratio of the specific diamine (Mitsumi) is preferably from 30 to 100 mol% and more preferably from 50 to 100 mol% with respect to the entire diamine component from the viewpoint of the optical characteristics of the liquid crystal display element. More preferable. From the viewpoint of optical characteristics of the liquid crystal display element, the use ratio of the specific tetracarboxylic acid (8) is preferably 30 to 100 mol %, and preferably 50 to 100 mol% with respect to the whole tetracarboxylic acid component. More preferable. Further, the specific diamine (Mitsumi) and the specific tetracarboxylic acid (eight) may be used either individually or in combination of two or more, depending on their respective characteristics.
[0033] ジアミン成分には、 本発明の効果を損なわない限りにおいて、 特定ジアミ ン (八) 及び特定ジアミン (巳) 以外のジアミン (その他ジアミンともいう 。 ) を用いることもできる。 具体的には、 国際公開公報 \^/〇2 0 1 6 / 0 7 6 4 1 2 (2 0 1 6 . 5 . 1 9公開) の 3 4頁〜 3 8頁に記載される式 [ 3 3 - 1] 〜式 [3 3— 5] のジアミン化合物、 同公報の 3 9頁〜 4 2頁に記 載されるその他ジアミン化合物、 及び同公報の 4 2頁〜 4 4頁に記載される 式 [0八 1] 〜 [0八 1 5] のジアミン化合物が挙げられる。 その他ジアミ 〇 2020/175517 11 卩(:171? 2020 /007616 [0033] As the diamine component, a diamine other than the specific diamine (8) and the specific diamine (Mitsumi) (also referred to as other diamine) can be used as long as the effects of the present invention are not impaired. Specifically, the formula described on pages 34 to 38 of International Publication Gazette \^/〇 2 0 1 6/0 7 6 4 1 2 (2 0 16.5.19 publication) [3 3-1] to diamine compounds of the formula [3 3-5], other diamine compounds described on pages 39 to 42 of the publication, and on pages 42 to 44 of the publication. Examples include diamine compounds represented by the formulas [0 8 1] to [0 8 15]. Other Jami 〇 2020/175517 11 卩(: 171-1? 2020/007616
ンは、 各特性に応じて、 1種又は 2種以上を混合して使用できる。 These can be used singly or as a mixture of two or more types according to each characteristic.
[0034] 特定テトラカルボン酸 ( ) 及び特定テトラカルボン酸 (巳) は、 前記式 [2八] 及び式 [2巳] のテトラカルボン酸二無水物や、 そのテトラカルボ ン酸誘導体であるテトラカルボン酸、 テトラカルボン酸ジハライ ド化合物、 テトラカルボン酸ジアルキルエステル化合物又はテトラカルボン酸ジアルキ ルエステルジハライ ド化合物を用いることができる。 [0034] The specific tetracarboxylic acid () and the specific tetracarboxylic acid (Mi) are the tetracarboxylic dianhydrides of the above formulas [2 8] and [2] and their tetracarboxylic acid derivatives. A tetracarboxylic acid dihalide compound, a tetracarboxylic acid dialkyl ester compound or a tetracarboxylic acid dialkyl ester dihalide compound can be used.
テトラカルボン酸成分には、 特定テトラカルボン酸 ( ) 及び特定テトラ カルボン酸 (巳) 以外のその他のテトラカルボン酸を用いることができる。 その他のテトラカルボン酸としては、 次に示すテトラカルボン酸化合物、 テ トラカルボン酸二無水物、 ジカルボン酸ジハライ ド化合物、 ジカルボン酸ジ アルキルエステル化合物又はジアルキルエステルジハライ ド化合物が挙げら れる。 具体的には、 国際公開公報 〇 201 5/01 2368 (201 5. As the tetracarboxylic acid component, other tetracarboxylic acid other than the specific tetracarboxylic acid () and the specific tetracarboxylic acid (Mitsumi) can be used. Examples of other tetracarboxylic acids include the following tetracarboxylic acid compounds, tetracarboxylic acid dianhydrides, dicarboxylic acid dihalide compounds, dicarboxylic acid dialkyl ester compounds and dialkyl ester dihalide compounds. Specifically, International Publication Gazette 〇 201 5/01 2368 (201 5.
1. 29公開) の 33頁〜 34頁に記載される式 [3] のテトラカルボン酸 が挙げられる。 1.29 publication), pages 33 to 34, and tetracarboxylic acids of the formula [3].
[0035] ポリイミ ド系重合体を合成する方法は、 特に限定されない。 通常、 ジアミ ン成分とテトラカルボン酸成分とを反応させて得られる。 具体的には、 国際 公開公報 〇 201 6/0764 1 2 (201 6. 5. 1 9公開) の 46頁 〜 50頁に記載される方法が挙げられる。 [0035] The method for synthesizing the polyimide polymer is not particularly limited. Usually, it is obtained by reacting a diamine component and a tetracarboxylic acid component. Specifically, the method described on pages 46 to 50 of WO 201 6/0764 1 2 (Published on May 6, 2010) can be mentioned.
[0036] ジアミン成分とテトラカルボン酸成分との反応は、 通常、 ジアミン成分と テトラカルボン酸成分とを含む溶媒中で行う。 その際に用いる溶媒としては 、 生成したポリイミ ド前駆体が溶解するものであれば特に限定されない。 具体的には、 1\! -メチルー 2 -ピロリ ドン、 1\1 -エチルー 2 -ピロリ ドン 、 アーブチロラクトン、 1\1, 1\1_ジメチルホルムアミ ド、 1\1, 1\1_ジメチル アセトアミ ド、 ジメチルスルホキシド又は 1 , 3—ジメチルー 2—イミダゾ リジノンなどが挙げられる。 また、 ポリイミ ド前駆体の溶媒溶解性が高い場 合は、 メチルエチルケトン、 シクロへキサノン、 シクロペンタノン、 4 -ヒ ドロキシ _4—メチルー 2—ペンタノン又は下記式 [口 1] 〜式 [口3] の 溶媒を用いることができる。 なお、 式 [口 1] 〜式 [03] において、 及 び口 2は炭素数 1〜 3のアルキル基を示す。 口 3は炭素数 1〜 4のアルキル基 を示す。 [0036] The reaction between the diamine component and the tetracarboxylic acid component is usually carried out in a solvent containing the diamine component and the tetracarboxylic acid component. The solvent used at that time is not particularly limited as long as it can dissolve the formed polyimide precursor. Specifically, 1\!-methyl-2-pyrrolidone, 1\1-ethyl-2-pyrrolidone, arbutyrolactone, 1\1, 1\1_dimethylformamide, 1\1, 1\1_dimethyl Acetamide, dimethyl sulfoxide, 1,3-dimethyl-2-imidazolidinone and the like can be mentioned. Further, when the solvent solubility of the polyimide precursor is high, methyl ethyl ketone, cyclohexanone, cyclopentanone, 4-hydroxy _4-methyl-2-pentanone or one of the following formulas [mouth 1] to formula [mouth 3] A solvent can be used. In addition, in formula [mouth 1] to formula [03], Port 2 represents an alkyl group having 1 to 3 carbon atoms. Mouth 3 represents an alkyl group having 1 to 4 carbon atoms.
[0037] [化 8] [0037] [Chemical 8]
Figure imgf000014_0001
Figure imgf000014_0001
[0038] また、 これらは単独で使用しても、 混合して使用してもよい。 更に、 ポリ イミ ド前駆体を溶解させない溶媒であっても、 生成したポリイミ ド前駆体が 析出しない範囲で、 前記の溶媒に混合して使用してもよい。 また、 有機溶媒 中の水分は重合反応を阻害し、 更には、 生成したポリイミ ド前駆体を加水分 解させる原因となるので、 有機溶媒は脱水乾燥させたものを用いることが好 ましい。 [0038] Further, these may be used alone or in combination. Furthermore, even a solvent that does not dissolve the polyimide precursor may be used as a mixture with the above-mentioned solvent as long as the formed polyimide precursor does not precipitate. Further, since water in the organic solvent inhibits the polymerization reaction and causes hydrolysis of the formed polyimide precursor, it is preferable to use dehydrated and dried organic solvent.
[0039] ポリイミ ド前駆体の重合反応においては、 ジアミン成分の合計モル数を 1 . 0にした際のテトラカルボン酸成分の合計モル数は、 0. 8〜 1. 2であ ることが好ましい。 [0039] In the polymerization reaction of the polyimide precursor, the total number of moles of the tetracarboxylic acid component when the total number of moles of the diamine component is 1.0 is preferably 0.8 to 1.2. ..
ポリイミ ドはポリイミ ド前駆体を閉環させて得られるポリイミ ドであり、 このポリイミ ドにおいては、 アミ ド酸基の閉環率 (イミ ド化率ともいう。 ) は必ずしも 1 00%である必要はなく、 用途や目的に応じて任意に調整でき る。 なかでも、 ポリイミ ド系重合体の溶媒への溶解性の点から、 30〜 80 %が好ましい。 より好ましいのは、 40〜 70%である。 Polyimide is a polyimide obtained by ring closure of a polyimide precursor, and in this polyimide, the ring closure rate (also referred to as imidation rate) of amide acid groups does not necessarily have to be 100%. , It can be adjusted arbitrarily according to the application and purpose. Among them, 30 to 80% is preferable from the viewpoint of the solubility of the polyimide polymer in the solvent. More preferred is 40 to 70%.
[0040] ポリイミ ド系重合体の分子量は、 そこから得られる膜の強度、 膜形成時の 作業性及び塗膜性を考慮した場合、 G PC (Gel Permeation Chromatograp hy) 法で測定した重量平均分子量で 5, 000〜 1 , 000, 000とする のが好ましく、 より好ましいのは、 1 0, 000〜 1 50, 000である。 [0040] The molecular weight of the polyimido polymer is the weight average molecular weight measured by GPC (Gel Permeation Chromatograp hy) method, considering the strength of the film obtained therefrom, workability during film formation, and coating property. It is preferably 5,000 to 1,000,000, and more preferably 10,000 to 150,000.
[0041] «特定部分構造を有する高分子を複数有する領域》 [0041] «A region having a plurality of polymers having a specific partial structure»
本発明の膜は、 前記少なくとも 1種の部分構造 Aと前記少なくとも 1種の 部分構造 Bとを有する高分子を複数有する領域を複数有してなる。 The membrane of the present invention has a plurality of regions having a plurality of polymers each having the at least one partial structure A and the at least one partial structure B.
また、 該領域内の複数の高分子の配向が揃っているのがよい。 〇 2020/175517 13 卩(:171? 2020 /007616 Further, it is preferable that the orientations of a plurality of polymers in the region are aligned. 〇 2020/175 517 13 卩 (:171? 2020 /007616
具体的に説明すると、 本発明の膜は、 領域 、 領域巳、 領域 0 (さらに続 くが、 説明のため、 領域八〜〇の 3つの領域を有する場合を想定する) など を有する。 More specifically, the film of the present invention has a region, a region, a region 0 (following, but for the sake of explanation, it is assumed that there are three regions 8 to 0).
[0042] 領域 〜〇は各々、 高分子を複数有し、 領域 〜〇の各々において、 該複 数の高分子は、 その配向方向が揃っている。 Each of the regions to ◯ has a plurality of polymers, and in each of the regions to ◯, the orientation directions of the plurality of polymers are aligned.
また、 領域 の特定重合体の配向方向 3と、 領域巳の特定重合体の配向 方向八 13とは、 同じであっても異なってもよい。 また、 領域巳の特定重合体 の配向方向八 13と、 領域〇の特定重合体の配向方向八〇とは、 同じであって も異なってもよい。 Further, the orientation direction 3 of the specific polymer in the region and the orientation direction 8 13 of the specific polymer in the region may be the same or different. Further, the alignment direction 80 of the specific polymer in the region δ and the alignment direction 80 of the specific polymer in the region ◯ may be the same or different.
[0043] 本発明の膜は、 上記領域を複数有することにより、 液晶性を発現すること ができる。 [0043] The film of the present invention can exhibit liquid crystallinity by having a plurality of the above regions.
したがって、 本発明の膜は、 発現する液晶性を用いた膜に応用することが でき、 例えば、 表示を目的とする液晶ディスプレイ、 更には、 光の遮断と透 過とを制御する調光窓や光シャッター素子、 液晶ディスプレイ及び/又は光 シャッター素子に用いられる液晶配向膜、 該液晶配向膜を備える液晶表示素 子などに応用することができるが、 これらに限定されない。 Therefore, the film of the present invention can be applied to a film using the liquid crystallinity that develops, for example, a liquid crystal display for the purpose of display, and a dimming window or a dimming window for controlling light blocking and transmission. The present invention can be applied to, but is not limited to, an optical shutter element, a liquid crystal display and/or a liquid crystal alignment film used for an optical shutter element, a liquid crystal display element including the liquid crystal alignment film, and the like.
[0044] <膜の製造方法> <Method for producing film>
本発明の膜は、 例えば次のような製造方法により製造することができる。 The membrane of the present invention can be produced, for example, by the following production method.
(丨) 第 1の基板を準備する工程; (丨) Step of preparing the first substrate;
( I I) 高分子又はその前駆体を有する膜形成用液を準備する工程; (II) a step of preparing a film-forming liquid having a polymer or a precursor thereof;
(丨 丨 丨) 前記膜形成用液を第 1の基板の片面に塗布する工程;及び ( I V) 塗布面を加温して、 膜を前記第 1の基板上に形成する工程; を有することにより、 上記膜を製造することができる。 (丨丨丨): applying the film forming liquid to one surface of the first substrate; and (IV) heating the applied surface to form a film on the first substrate. According to this, the above film can be manufactured.
[0045] «工程 (丨) >> [0045] «Process (丨)>>
工程 (丨) は、 第 1の基板を準備する工程である。 The step () is a step of preparing the first substrate.
第 1の基板は、 膜を製造するための基板である。 The first substrate is a substrate for manufacturing a film.
本発明の膜と共に第 1の基板を用いる場合、 例えば膜を液晶配向膜として 、 第 1の基板を液晶表示素子用基板として用いる場合、 第 1の基板は、 該液 〇 2020/175517 14 卩(:171? 2020 /007616 When the first substrate is used together with the film of the present invention, for example, when the film is used as a liquid crystal alignment film and the first substrate is used as a liquid crystal display device substrate, the first substrate is 〇 2020/175 517 14 (:171? 2020 /007616
晶表示素子用基板に適したものを用いるのがよい。 即ち、 第 1の基板をその 後も膜と共に用いる場合、 第 1の基板は、 該用途に応じて、 適切に選択する のがよい。 It is preferable to use one suitable for the substrate for crystal display element. That is, when the first substrate is used together with the film thereafter, the first substrate should be appropriately selected according to the application.
第 1の基板として、 その後の用途に依存するが、 例えば、 透明性の高い基 板を挙げることができるがこれらに限定されない。 具体的には、 透明性の高 い基板として、 例えば、 ガラス基板の他、 ポリアミ ド基板、 ポリイミ ド基板 、 ポリエーテルサルホン基板、 アクリル基板、 ポリカーボネート基板、 巳 丁 (ポリエチレンテレフタレート) 基板などのプラスチック基板、 更には、 それらのフィルムを用いることができるがこれらに限定されない。 特に、 調 光窓などに用いる場合には、 プラスチック基板やフィルムが好ましい。 Examples of the first substrate include, but are not limited to, a highly transparent substrate, depending on the subsequent application. Specifically, as a highly transparent substrate, for example, in addition to a glass substrate, a plastic substrate such as a polyamide substrate, a polyimide substrate, a polyethersulfone substrate, an acrylic substrate, a polycarbonate substrate, and a Mita (polyethylene terephthalate) substrate. Substrates, and even films thereof, can be used, but are not limited to these. In particular, when used for a light control window or the like, a plastic substrate or film is preferable.
[0046] «工程 (丨 I) » [0046] «Process (丨I)»
工程 (丨 丨) は、 高分子又はその前駆体を有する膜形成用液を準備するエ 程である。 The step (丨丨) is a step of preparing a film forming liquid containing a polymer or a precursor thereof.
高分子又はその前駆体は、 上述と同じ定義を有し、 上述したように準備す ることができる。 The polymer or its precursor has the same definition as above and can be prepared as described above.
膜形成用液は、 膜を形成するための溶液であり、 高分子又はその前駆体及 び所定の溶媒を含有する。 なお、 高分子又はその前駆体として、 1種又は 2 種以上を用いることができる。 The film forming liquid is a solution for forming a film and contains a polymer or its precursor and a predetermined solvent. As the polymer or its precursor, one kind or two or more kinds can be used.
[0047] 膜形成用液中の溶媒の含有量は、 膜形成用液の塗布方法や目的とする膜厚 を得るという観点から、 適宜選択できる。 なかでも、 塗布により均一な膜を 形成するという観点から、 液中の溶媒の含有量は 5 0〜 9 9 . 9質量%が好 ましい。 なかでも、 6 0〜 9 9質量%が好ましい。 より好ましいのは、 6 5 〜 9 9質量%である。 The content of the solvent in the film forming liquid can be appropriately selected from the viewpoint of obtaining the coating method of the film forming liquid and the desired film thickness. Among them, the content of the solvent in the liquid is preferably 50 to 99.9 mass% from the viewpoint of forming a uniform film by coating. Among them, 60 to 99 mass% is preferable. More preferably, it is 65 to 99% by mass.
[0048] 膜形成用液に用いる溶媒は、 高分子を溶解させる溶媒であれば特に限定さ れない。 なかでも、 高分子が、 ポリイミ ド前駆体、 ポリイミ ド、 ポリアミ ド 、 ポリエステル、 ポリエーテル、 ポリウレタン、 ポリ (エステルアミ ド) 、 ポリ (エステルーイミ ド) 、 ポリ (エステルー無水物) 又はポリ (エステル -力ーボナート) の場合、 或いは、 アクリルポリマー、 メタクリルポリマー 〇 2020/175517 15 卩(:171? 2020 /007616 The solvent used for the film-forming liquid is not particularly limited as long as it is a solvent that dissolves the polymer. Among them, the polymer is a polyimide precursor, polyimide, polyamide, polyester, polyether, polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride) or poly(ester-force). Carbonate), or acrylic polymer, methacrylic polymer 〇 2020/175 517 15 卩 (:171? 2020 /007616
、 ノボラック樹脂、 エポキシ樹脂、 ポリヒドロキシスチレン、 セルロース又 はポリシロキサンの溶媒への溶解性が低い場合は、 下記の溶媒 (溶媒 類と もいう。 ) を用いることが好ましい。 When the solubility of the novolac resin, epoxy resin, polyhydroxystyrene, cellulose or polysiloxane in the solvent is low, the following solvents (also referred to as solvents) are preferably used.
[0049] 溶媒八類として、 例えば、 1\1 , 1\1—ジメチルホルムアミ ド、 1\1 , 1\1—ジメ チルアセトアミ ド、 1\1—メチルー 2—ピロリ ドン、 1\1—エチルー 2—ピロリ ドン、 ジメチルスルホキシド、 チロラクトン、 1 , 3—ジメチルー 2 —イミダゾリジノン、 メチルエチルケトン、 シクロへキサノン、 シクロペン タノン、 4 -ヒドロキシー4 -メチルー 2 -ペンタノンなどを挙げることが できる。 なかでも、 1\1 _メチルー 2—ピロリ ドン、 1\1 _エチルー 2—ピロリ ドン又は· ^ -プチロラクトンが好ましい。 また、 これらは単独で使用しても 、 混合して使用してもよい。 [0049] Examples of the solvent eight compounds include, for example, 1\1, 1\1—dimethylformamide, 1\1, 1\1—dimethylacetamide, 1\1—methyl-2-pyrrolidone, 1\1—ethyl Examples thereof include 2-pyrrolidone, dimethyl sulfoxide, tyrolactone, 1,3-dimethyl-2-imidazolinone, methyl ethyl ketone, cyclohexanone, cyclopentanone and 4-hydroxy-4-methyl-2-pentanone. Among them, 1\1_methyl-2-pyrrolidone, 1\1_ethyl-2-pyrrolidone or ·^-ptyrolactone is preferable. These may be used alone or in combination.
[0050] 高分子が、 アクリルポリマー、 メタクリルポリマー、 ノボラック樹脂、 エ ポキシ樹脂、 ポリヒドロキシスチレン、 セルロース又はポリシロキサンであ る場合、 更には、 液晶性高分子が、 ポリイミ ド前駆体、 ポリイミ ド、 ポリア ミ ド、 ポリエステル、 ポリエーテル、 ポリウレタン、 ポリ (エステルアミ ド ) 、 ポリ (エステルーイミ ド) 、 ポリ (エステルー無水物) 又はポリ (エス テルーカーボナート) であり、 これらの溶媒への溶解性が高い場合は、 下記 の溶媒 (溶媒巳類ともいう。 ) を用いることができる。 [0050] When the polymer is an acrylic polymer, a methacrylic polymer, a novolac resin, an epoxy resin, polyhydroxystyrene, cellulose or polysiloxane, further, the liquid crystalline polymer is a polyimide precursor, a polyimide, Polyamide, polyester, polyether, polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride) or poly(ester carbonate), which have high solubility in these solvents In this case, the following solvent (also referred to as solvent solvent) can be used.
[0051] 溶媒巳類の具体例は、 国際公開公報 〇 2 0 1 4 / 1 7 1 4 9 3 (2 0 1 4 . 1 0 . 2 3公開) の 5 8頁〜 6 0頁に記載される溶媒巳類が挙げられる 。 なかでも、 1 —へキサノール、 シクロへキサノール、 1 , 2—エタンジオ [0051] Specific examples of solvent solvents are described on pages 58 to 60 of International Publication No. 〇 2 0 1 4/1 7 1 4 9 3 (2 0 1 4 1 .0.2 3 publication). Solvents such as Among them, 1-hexanol, cyclohexanol, 1,2-ethanedine
—ル、 1 , 2—プロパンジオール、 プロピレングリコールモノプチルエーテ ル、 エチレングリコールモノプチルエーテル、 ジプロピレングリコールジメ チルエーテル、 シクロへキサノン、 シクロペンタノン又は前記式 [0 1] 〜 式 [口 3] が好ましい。 -L, 1,2-propanediol, propylene glycol monobutyl ether, ethylene glycol monobutyl ether, dipropylene glycol dimethyl ether, cyclohexanone, cyclopentanone or the above formula [0 1] to formula [mouth 3] preferable.
[0052] また、 これら溶媒巳類を用いる際、 膜形成用液の塗布性を改善する目的に 、 前記溶媒八類の 1\1 _メチルー 2—ピロリ ドン、 1\1 _エチルー 2—ピロリ ド ン又は·)^ _ブチロラクトンを併用して用いることが好ましい。 〇 2020/175517 16 卩(:171? 2020 /007616 [0052] In addition, when using these solvent spins, in order to improve the coatability of the film-forming liquid, 1\1_methyl-2-pyrrolidone and 1\1_ethyl-2-pyrrolidone of the above-mentioned solvent baths are used. Or .)^ _ butyrolactone is preferably used in combination. 〇 2020/175 517 16 卩 (: 171-1? 2020/007616
これら溶媒巳類は、 膜形成用液を塗布する際の膜の塗膜性や表面平滑性を 高めることができるため、 高分子にポリイミ ド前駆体、 ポリイミ ド、 ポリア ミ ド、 ポリエステル、 ポリエーテル、 ポリウレタン、 ポリ (エステルアミ ド ) 、 ポリ (エステルーイミ ド) 、 ポリ (エステルー無水物) 又はポリ (エス テルーカーボナート) を用いた場合、 前記溶媒八類と併用して用いることが 好ましい。 その際、 溶媒巳類は、 膜形成用液に含まれる溶媒全体の 1〜 99 質量%が好ましい。 なかでも、 1 0〜 99質量%が好ましい。 より好ましい のは、 20〜 95質量%である。 These solvents can improve the coating property and surface smoothness of the film when the film-forming liquid is applied, so that they can be added to polymers such as polyimide precursors, polyimides, polyamides, polyesters and polyethers. When polyurethane, poly(ester amide), poly(ester-imide), poly(ester-anhydride) or poly(ester carbonate) is used, it is preferable to use it in combination with the eight solvents. At that time, the amount of the solvent is preferably 1 to 99% by mass of the whole solvent contained in the film forming liquid. Among them, 10 to 99 mass% is preferable. More preferably, it is 20 to 95% by mass.
[0053] 膜形成用液には、 膜の膜強度を高めるために、 エポキシ基、 イソシアネー 卜基、 オキセタン基、 シクロカーボネート基、 ヒドロキシ基、 ヒドロキシア ルキル基又は低級アルコキシアルキル基を有する化合物を導入することもで きる。 その際、 これらの基は、 化合物中に 2個以上有する必要がある。 [0053] In order to increase the film strength of the film, a compound having an epoxy group, an isocyanate group, an oxetane group, a cyclocarbonate group, a hydroxy group, a hydroxyalkyl group or a lower alkoxyalkyl group is introduced into the film forming liquid. You can also do it. In that case, it is necessary for the compound to have two or more of these groups.
[0054] エポキシ基又はイソシアネート基を有する架橋性化合物の具体例は、 国際 公開公報 〇 201 4/1 7 1 493 (201 4. 1 0. 23公開) の 63 頁〜 64頁に記載されるエポキシ基又はイソシアネート基を有する架橋性化 合物が挙げられる。 [0054] Specific examples of the crosslinkable compound having an epoxy group or an isocyanate group are described in International Publication WO 201 4/1 7 1 493 (published 201 4.10.23), pages 63 to 64. Examples thereof include crosslinkable compounds having a group or an isocyanate group.
オキセタン基を有する架橋性化合物の具体例は、 国際公開公報 \^/0201 1 /1 3275 1 (201 1. 1 0. 27公開) の 58頁〜 59頁に掲載さ れる式
Figure imgf000018_0001
〜式 [4 !<] の架橋性化合物が挙げられる。
Specific examples of the crosslinkable compound having an oxetane group are represented by the formulas shown on pages 58 to 59 of International Publication WO^/0201 1/1 3275 1 (201 1.1.0.27 publication).
Figure imgf000018_0001
~ Crosslinkable compounds of the formula [4 !<] are mentioned.
[0055] シクロカーボネート基を有する架橋性化合物の具体例は、 国際公開公報 0201 2/01 4898 (201 2. 2. 2公開) の 76頁〜 82頁に掲 載される式 [5- 1] 〜式 [5-42] の架橋性化合物が挙げられる。 ヒドロキシル基、 ヒドロキシアルキル基及び低級アルコキシアルキル基を 有する架橋性化合物の具体例は、 国際公開公報 201 4/1 7 1 493 (2 01 4. 1 0. 23公開) の 65頁〜 66頁に記載されるメラミン誘導体又 はべンゾグアナミン誘導体、 及び国際公開公報 〇 201 1 /1 3275 1 (201 1. 1 0. 27公開) の 62頁〜 66頁に掲載される、 式 [6- 1 ] 〜式 [6_48] の架橋性化合物が挙げられる。 〇 2020/175517 17 卩(:171? 2020 /007616 [0055] Specific examples of the crosslinkable compound having a cyclocarbonate group include compounds represented by the formula [5-1] listed on pages 76 to 82 of International Publication No. 0201 2/01 4898 (published on February 2, 2.2). ~ Crosslinkable compounds of the formula [5-42] are mentioned. Specific examples of the crosslinkable compound having a hydroxyl group, a hydroxyalkyl group and a lower alkoxyalkyl group are described on pages 65 to 66 of International Publication WO 201 4/1 7 1 493 (2 01 4.1 0.23 publication). Melamine derivative or benzoguanamine derivative, and the formula [6-1]-formulas described on pages 62 to 66 of International Publication WO 201 1/1 3275 1 (201 1.1 0.27 publication). The crosslinkable compound of [6_48] is mentioned. 〇 2020/175 517 17 卩(: 171-1? 2020/007616
[0056] 膜形成用液における架橋性化合物の含有量は、 すべての高分子成分 1 00 質量部に対して、 〇. 1〜 1 〇〇質量部が好ましい。 架橋反応が進行し、 目 的の効果を発現させるためには、 すべての重合体成分 1 〇〇質量部に対して 〇. 1〜 50質量部がより好ましく、 最も好ましいのは、 1〜 30質量部で ある。 [0056] The content of the crosslinkable compound in the film forming liquid is preferably 0.1 to 100 parts by mass with respect to 100 parts by mass of all the polymer components. In order for the cross-linking reaction to proceed and to bring out the desired effect, 0.1 to 50 parts by mass is more preferable with respect to 100 parts by mass of all polymer components, and most preferably 1 to 30 parts by mass. Is a department.
[0057] 膜形成用液には、 本発明の効果を損なわない限り、 膜形成用液を塗布した 際の膜の厚さの均一性や表面平滑性を向上させる化合物を用いることができ る。 さらに、 電極基板などを膜に設ける場合には、 膜と電極基板との密着性 を向上させる化合物などを用いることもできる。 As the film-forming liquid, a compound that improves the uniformity of the film thickness and the surface smoothness when the film-forming liquid is applied can be used unless the effects of the present invention are impaired. Furthermore, when an electrode substrate or the like is provided on the film, a compound or the like that improves the adhesion between the film and the electrode substrate can be used.
[0058] 膜の厚さの均一性や表面平滑性を向上させる化合物としては、 フッ素系界 面活性剤、 シリコーン系界面活性剤、 又はノニオン系界面活性剤などが挙げ られる。 具体的には、 国際公開公報 〇 201 4/1 7 1 493 (201 4 . 1 0. 23公開) の 67頁に記載される界面活性剤が挙げられる。 また、 その使用割合は、 膜形成用液に含有されるすべての重合体成分 1 〇〇質量部 に対して、 0. 〇 1〜 2質量部が好ましい。 より好ましいのは、 〇. 01〜 1質量部である。 [0058] Examples of the compound that improves the uniformity of the film thickness and the surface smoothness include a fluorine-based surfactant, a silicone-based surfactant, and a nonionic surfactant. Specific examples thereof include the surfactants described on page 67 of International Publication WO 201 4/1 7 1 493 (201 4.1 0.23 publication). Further, the use ratio thereof is preferably 0.01 to 2 parts by mass based on 100 parts by mass of all the polymer components contained in the film forming liquid. More preferred is 0.01 to 1 part by mass.
[0059] 膜と電極基板との密着性を向上させる化合物の具体例は、 国際公開公報 0201 4/1 7 1 493 (201 4. 1 0. 23公開) の 67頁〜 69頁 に記載される化合物が挙げられる。 また、 その使用割合は、 液晶配向処理剤 に含有されるすべての重合体成分 1 00質量部に対して、 〇. 1〜 30質量 部が好ましい。 より好ましいのは、 1〜 20質量部である。 [0059] Specific examples of the compound that improves the adhesion between the film and the electrode substrate are described on pages 67 to 69 of International Publication WO201 4/1 7 1 493 (201 4.1 0.23 publication). Compounds. The ratio of its use is preferably 0.1 to 30 parts by mass with respect to 100 parts by mass of all polymer components contained in the liquid crystal alignment treatment agent. More preferably, it is 1 to 20 parts by mass.
膜形成用液には、 前記以外の化合物の他に、 膜の誘電率や導電性などの電 気特性を変化させる目的の誘電体や導電物質を添加してもよい。 In addition to the compounds other than the above, a dielectric or conductive substance for the purpose of changing the electric properties such as the dielectric constant and conductivity of the film may be added to the film forming liquid.
[0060] «工程 (丨 I I) » [0060] «Process (丨 I I)»
工程 (丨 丨 丨) は、 膜形成用液を第 1の基板の片面に塗布する工程である 塗布する手法は、 従来公知の手法を用いることができ、 例えばスクリーン 印刷、 オフセッ ト印刷、 フレキソ印!^、 インクジェッ ト法、 ディップ法、 口 〇 2020/175517 18 卩(:171? 2020 /007616 The step (丨丨丨) is the step of applying the film forming liquid to one surface of the first substrate. The application method can be a conventionally known method, for example, screen printing, offset printing, flexographic printing. !^, inkjet method, dip method, mouth 〇 2020/175 517 18 (:171? 2020 /007616
—ルコータ法、 スリッ トコータ法、 スピンナー法、 スプレー法などを挙げる ことができるがこれらに限定されず、 基板の種類や目的とする樹脂膜の膜厚 に応じて、 適宜選択することができる。 —The rucoater method, the slit coater method, the spinner method, the spray method and the like can be mentioned, but the method is not limited to these, and can be appropriately selected depending on the type of substrate and the intended film thickness of the resin film.
[0061 ] «工程 ( I V) » [0061] «Process (IV)»
工程 (丨 V) は、 工程 ( I I I) で得られた塗布面を加温して、 膜を第 1 の基板上に形成する工程である。 Step (v) is a step of heating the coated surface obtained in step (II I) to form a film on the first substrate.
加温、 即ち加熱処理は、 用いる基板の種類、 用いる膜形成用液、 特に膜形 成用液に用いられる溶媒、 膜の液晶性の発現の温度領域などに依存するが、 ホッ トプレート、 熱循環型才ーブン、 丨
Figure imgf000020_0001
(赤外線) 型才ーブンなどによる 加熱処理することができる。
Heating, that is, heat treatment, depends on the type of substrate used, the film forming liquid used, particularly the solvent used for the film forming liquid, and the temperature range where the liquid crystallinity of the film is expressed. Circular talent, 丨
Figure imgf000020_0001
(Infrared) Can be heat-treated with a mold.
[0062] ここで、 加温の条件は、 用いる高分子、 用いる膜形成用液、 特に膜形成用 液に用いられる溶媒、 膜の液晶性の発現の温度領域などに依存するが、 前記 高分子を複数有する領域が複数形成され、 該領域内における該複数の重合体 の配向が揃うように加温するのがよい。 [0062] Here, the heating conditions depend on the polymer used, the film-forming liquid used, particularly the solvent used for the film-forming liquid, the temperature range where the liquid crystallinity of the film is expressed, and the like. It is preferable that a plurality of regions having a plurality of are formed and that the heating be performed so that the orientations of the plurality of polymers are aligned in the regions.
具体的には、 例えば前記高分子が液晶相を発現する温度域まで加温するの がよく、 より具体的には 8 0〜 3 5 0 °〇、 好ましくは 1 0 0〜 3 0 0 °〇、 よ り好ましくは 1 2 0〜 3 0 0 °〇、 最も好ましくは 1 2 0 ~ 2 5 0 °〇で加温す るのがよい。 Specifically, for example, it is preferable that the polymer is heated to a temperature range in which a liquid crystal phase is exhibited, and more specifically, 80 to 350°C, more preferably 100 to 300°C. , yo Ri preferably 1 2 0~ 3 0 0 ° 〇, most preferably 1 2 0 ~ 2 5 0 ° good to you warmed at 〇.
[0063] 上記工程 (丨) 〜 (丨 V) を有することにより、 本発明の膜、 即ち、 特定 の部分構造を有する高分子を有する膜、 特に該高分子を複数有する領域であ つて該領域内の該複数の高分子の配向が揃つている領域を複数有する膜を、 第 1の基板上に形成することができる。 [0063] By having the above steps () to () V, the film of the present invention, that is, a film having a polymer having a specific partial structure, particularly a region having a plurality of the polymers A film having a plurality of regions in which the orientations of the plurality of macromolecules are aligned can be formed on the first substrate.
膜の厚みは、 該膜の用途などに依存するが、 例えば 5〜 5 0 0 n m、 好ま しくは
Figure imgf000020_0002
より好ましくは 1 0〜 2 5 0门 であるのがよい 本発明の膜の製造方法は、 上記工程 (丨) 〜 ( I V) 以外の工程を含んで もよい。 例えば、 工程 (丨 V) 後に、 第 1の基板から本発明の膜を剥離する 工程を設けて、 本発明の膜を自立膜とする工程を設けてもよい。 〇 2020/175517 19 卩(:171? 2020 /007616 実施例
The thickness of the film depends on, for example, the use of the film, but is, for example, 5 to 500 nm, preferably
Figure imgf000020_0002
More preferably, it is from 10 to 250, and the method for producing a membrane of the present invention may include steps other than the steps (C) to (IV). For example, a step of separating the film of the present invention from the first substrate may be provided after the step (C), and a step of making the film of the present invention a self-supporting film may be provided. 〇 2020/175 517 19 (:171? 2020/007616 Example
[0064] 以下に実施例を挙げ、 本発明をさらに詳しく説明するが、 これらに限定さ れるものではない。 [0064] The present invention will be described in more detail with reference to examples below, but the invention is not limited thereto.
本実施例で用いる略語及び評価機器は下記の通りである。 The abbreviations and evaluation equipment used in this example are as follows.
[0065] <液晶> [0065] <Liquid crystal>
1_ 1 : !_ 1 -2293 (丁 : 85°0, △£ : ! 0 0,
Figure imgf000021_0001
〇.
1_ 1 : !_ 1 -2293 (Ding: 85° 0, △£: !0 0,
Figure imgf000021_0001
〇.
1 32) (メルク社製) 1 32) (Merck)
!_ 2 : (丁 : 92°〇, △5 : 1 2. 2, 八门 : 〇. 220) の物性値 を有する液晶 !_ 2: (Diameter: 92° 〇, △5: 1 2. 2, Eighth: 〇. 220) Liquid crystal with physical property value
!_ 3 : (丁 : 1 02°0, 八^ : ァ. 4, 八门 : 〇. 236) の物性値 を有する液晶 Liquid crystal with physical properties of !_ 3 :( Ding: 102 ° 0, 8 ^ :a. 4, 8 门: 〇.236)
!_4 : (丁 : 90°〇, 八^ : ァ. 4, 八门 : 〇. 299) の物性値を 有する液晶 Liquid crystal with physical properties of !_4: (Cho: 90°, eight ^: a. 4, eight: 〇.299)
<液晶配向処理剤に用いる化合物類> <Compounds used for liquid crystal alignment treatment agent>
<特定ジアミン ( ) ñ <Specific diamine () ñ
[0066] [化 9] [0066] [Chemical 9]
Figure imgf000021_0002
Figure imgf000021_0002
[0067] <特定ジアミン (巳) > [0067] <Specific diamine (Minami)>
[0068] 〇 2020/175517 20 卩(:171? 2020 /007616 [0068] 〇 2020/175 517 20 卩 (: 171-1? 2020/007616
[化 10]
Figure imgf000022_0001
[Chemical 10]
Figure imgf000022_0001
[0069] <特定テトラカルボン酸 ( ) > <Specific tetracarboxylic acid ()>
[0070] [化 11] [0070] [Chemical 11]
Figure imgf000022_0002
Figure imgf000022_0002
[0071] <特定テトラカルボン酸 (巳) > [0071] <Specific tetracarboxylic acid (Mimi)>
[0072] [化 12] [0072] [Chemical 12]
Figure imgf000022_0003
Figure imgf000022_0003
[0073] <その他テトラカルボン酸> [Other tetracarboxylic acid]
[0074] [化 13] [0074] [Chemical 13]
Figure imgf000022_0004
Figure imgf000022_0004
[0075] <溶媒> [0075] <Solvent>
1\/1? : 1\1 -メチルー 2 -ピロリ ドン 1\/1?: 1\1-methyl-2-pyrrolidone
603 :エチレングリコールモノブチルエーテル 603: Ethylene glycol monobutyl ether
[0076] <評価機器> [0076] <Evaluation equipment>
偏光顕微鏡: 巳〇!_ 丨 ?3巳 [-V 1 00 〇し (ニコン社製) 顕微鏡用冷却加熱ステージ: 1 〇 841_ (ジャパンハイテック社製) 示差走査熱量計
Figure imgf000022_0005
〇 2020/175517 21 卩(:171? 2020 /007616
Polarization microscope: 跳〇!_丨? 3M[-V 100 〇 (manufactured by Nikon Corporation) Cooling/heating stage for microscope: 1 〇 841_ (manufactured by Japan High Tech Co.) Differential scanning calorimeter
Figure imgf000022_0005
〇 2020/175517 21 卩(: 171-1? 2020/007616
丁丁 1_巳 [¾ 丁〇1_巳 0〇社製) Ding 1__ [Made by ¾ Ding _ 1_ D. 00 company)
走査型電子顕微鏡 (3巳1\/1) : 」 31\/1_7400 (」 巳〇1_社製) ヘイズメーター: 1~12- 3 (スガ試験機社製) Scanning Electron Microscope (3m 1\/1): "31\/1_7400 (" manufactured by Mitsui 1_) Haze Meter: 1 ~ 12- 3 (manufactured by Suga Test Instruments Co., Ltd.)
粘度計: 巳型粘度計丁 V巳一 221~1, コーンロータ丁巳一 1 (1 ° 34’ , 824) (東機産業社製) Viscometer: Minami-type viscometer V-Michiichi 221-2 ~ 1, Cone rotor Domiichi 1 (1 ° 34', 824) (manufactured by Toki Sangyo Co., Ltd.)
[0077] <液晶配向処理剤の調製> <Preparation of Liquid Crystal Alignment Treatment Agent>
<合成例 1> <Synthesis example 1>
1 八一 1 (4. 449, 8. 59〇1〇1〇 1) を 1\/1? (20. 89) に溶 解し、 その溶液に、 2巳一 1 (2. 509, 8. 50 〇 1) を加えた。 その後、
Figure imgf000023_0001
(6. 959) を加え、 40°〇で 2時間反応させ、 樹脂固形 分濃度が 20質量%のポリアミ ド酸溶液 (八) を得た。 このポリアミ ド酸の 粘度は、 380〇1 3 3 (25°〇 であった。
1 8 1 1 (4.449, 8.59 〇 1 〇 10 1) was dissolved in 1\/1? (20. 89), and 2 1 1 (2. 50 9 ,8) was added to the solution. .50 0 1) was added. afterwards,
Figure imgf000023_0001
(6.95 9) was added, reacted for 2 hours at 40 ° 〇, the resin solids concentration was obtained 20 wt% of the polyamic de acid solution (eight). The viscosity of this polyamic de acid was 380_Rei_1 3 3 (25 ° 〇.
得られたポリアミ ド酸溶液 (八) (5. 009) に、 1\/1? (9. 759 ) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (1) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 To the resulting made of Polyamide acid solution (eight) (5.00 9), 1 \ / 1? A (9.75 9) and Snake Rei_3 (3.45 9) was added, and stirred for 2 hours at 25 ° 〇 Thus, a liquid crystal alignment treatment agent (1) was obtained. No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
[0078] <合成例 2> <Synthesis example 2>
1 八一2 (4. 749, 8. 57〇1〇1〇 1) を 1\/1? (2 1. 1 、 に溶 解し、 その溶液に、 2巳一 1 (2. 509, 8. 50 〇 1) を加えた。 その後、
Figure imgf000023_0002
(7. 259) を加え、 40°〇で 2時間反応させ、 樹脂固形 分濃度が 20質量%のポリアミ ド酸溶液 (巳) を得た。 このポリアミ ド酸の 粘度は、
Figure imgf000023_0003
3 (25°〇) であった。
1 eighty-one 2 (4.74 9, 8. 57_Rei_1_rei_1_rei 1) 1 \ / 1? (2 1. 1, to construed soluble, to the solution, 2 Snake one 1 (2.50 9 , 8. 50 1) was added.
Figure imgf000023_0002
(7.25 9) was added, reacted for 2 hours at 40 ° 〇, the resin solids concentration was obtained 20 wt% of the polyamic de acid solution (Serpent). The viscosity of this polyamic acid is
Figure imgf000023_0003
It was 3 (25°○).
得られたポリアミ ド酸溶液 (巳) (5. 009) に、 1\/1? (9. 759 ) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (2) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 To the resulting made of Polyamide acid solution (Snake) (5.00 9), 1 \ / 1? A (9.75 9) and Snake Rei_3 (3.45 9) was added, and stirred for 2 hours at 25 ° 〇 Thus, a liquid crystal alignment treatment agent (2) was obtained. No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
[0079] <合成例 3> [0079] <Synthesis example 3>
1 八一3 (3. 449, 1 2. 0〇1〇1〇 1) を 1\/1? (20. 89) に溶 〇 2020/175517 22 卩(:171? 2020 /007616 1 8 1 3 (3.449, 1 2. 0 0 1 0 1 0 1) dissolved in 1\/1? (20. 89) 〇 2020/175 517 22 卩 (:171? 2020 /007616
解し、 その溶液に、 2巳一 1 (3. 509, 1 1. 9 〇 1 ) を加えた。 その後、
Figure imgf000024_0001
(6. 959) を加え、 40°〇で 2時間反応させ、 樹脂固形 分濃度が 20質量%のポリアミ ド酸溶液 (〇) を得た。 このポリアミ ド酸の 粘度は、 450〇1 3 3 (25°〇) であった。
The solution was added, and 2Michiichi 1 (3. 50 9 ,1 1.910) was added to the solution. afterwards,
Figure imgf000024_0001
(6.95 9) was added, reacted for 2 hours at 40 ° 〇, the resin solids concentration was obtained 20 wt% of the polyamic de acid solution (〇). The viscosity of this polyamic de acid was 450_Rei_1 3 3 (25 ° 〇).
得られたポリアミ ド酸溶液 (〇) (5. 009) に、 1\/1? (9. 759 ) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (3) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 To the resulting made of Polyamide acid solution (〇) (5. 009), 1 \ / 1? (9.75 9) and Snake Rei_3 a (3.45 9) was added, and stirred 2 hours at 25 ° 〇 Thus, a liquid crystal alignment treatment agent (3) was obtained. No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
[0080] <合成例 4> [0080] <Synthesis example 4>
1 巳一 1 (2. 389, 8. 87〇1〇1〇 1 ) を 1\/1? (23. 69) で溶 解させ、 その溶液に、 2八一 1 (5. 509, 8.
Figure imgf000024_0002
を加えた
1 Minichi 1 (2.389, 8.87 〇 1 〇 1 〇 1) was dissolved with 1\/1? (23. 69) and the solution was added to 2 81 1 (5. 50 9 ,8). .
Figure imgf000024_0002
Added
。 その後、 1\/1? (7. 889) を加え、 40°〇で 2時間反応させ、 樹脂固 形分濃度が 20質量%のポリアミ ド酸溶液 (0) を得た。 このポリアミ ド酸 の粘度は、 360〇1 3 3 (25°〇 であった。 .. Thereafter, 1 \ / 1? A (7.88 9) was added, reacted for 2 hours at 40 ° 〇, resin solid content concentration to obtain a 20% by weight made of Polyamide acid solution (0). The viscosity of this polyamide acid was 360 ° 133 (25°°).
得られたポリアミ ド酸溶液 (口) (5. 009) に、 1\/1? (9. 759 Add 1\/1? (9. 75 9 to the obtained polyamic acid solution (mouth) (5.009).
) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (4) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 ) And Snake Rei_3 a (3.45 9) was added to give stirred for 2 hours at 25 ° 〇, the liquid crystal alignment treatment agent (4). No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
[0081] <合成例 5> [0081] <Synthesis example 5>
1 八一3 (4. 1 39, 1 4. 4〇1〇1〇 1 ) を 1\/1? (20. 89) で溶 解させ、 その溶液に、 2- 1 (2. 809, 1 4. 3 〇 丨 ) を加えた。 その後、
Figure imgf000024_0003
(6. 959) を加え、 25 °〇で 4時間反応させ、 樹脂固形 分濃度が 20質量%のポリアミ ド酸溶液 (巳) を得た。 このポリアミ ド酸の 粘度は、 530〇1 3 3 (25°〇) であった。
1 8 1 3 (4. 1 39, 1 4. 4 0 1 0 1 0 1) was dissolved with 1\/1? (20. 89) and the solution was added with 2-1 (2. 80 9 ,). 1 4.3 〇 丨) was added. afterwards,
Figure imgf000024_0003
(6.95 9) was added, and reacted for 4 hours at 25 ° 〇, the resin solids concentration was obtained 20 wt% of the polyamic de acid solution (Serpent). The viscosity of this polyamide acid was 530 〇 1 3 3 (25° 〇).
得られたポリアミ ド酸溶液 (巳) (5. 009) に、 1\/1? (9. 759 ) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (5) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 〇 2020/175517 23 卩(:171? 2020 /007616 To the resulting made of Polyamide acid solution (Snake) (5. 009), 1 \ / 1? (9.75 9) and Snake Rei_3 a (3.45 9) was added, and stirred 2 hours at 25 ° 〇 Thus, a liquid crystal alignment treatment agent (5) was obtained. No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution. 〇 2020/175517 23 卩(: 171-1? 2020/007616
[0082] <合成例 6> [0082] <Synthesis example 6>
1 巳一2 (2. 5 1 9, 23. 2〇1〇1〇 1) を 1\/1? (2 1. 09) で溶 解させ、 その溶液に、 2- 1 (4. 509, 23. 0 〇 1) を加えた。 その後、
Figure imgf000025_0001
(7. 009) を加え、 25 °〇で 4時間反応させ、 樹脂固形 分濃度が 20質量%のポリアミ ド酸溶液 ( ) を得た。 このポリアミ ド酸の 粘度は、 720〇1 3 3 (25°〇) であった。
1 Snake one 2 (2.5 1 9, 23. 2_Rei_1_rei_1_rei 1) 1 \ / 1? (2 1.0 9) was dissolve in the solution, 2-1 (4.50 9 , 23.0.01) was added. afterwards,
Figure imgf000025_0001
(7.009) was added, and the mixture was reacted at 25° for 4 hours to obtain a polyamic acid solution () having a resin solid content concentration of 20% by mass. The viscosity of this polyamic de acid was 720_Rei_1 3 3 (25 ° 〇).
得られたポリアミ ド酸溶液 ( ) (5. 009) に、 1\/1? (9. 759 ) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (6) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 To the resulting made of Polyamide acid solution () (5.00 9), 1 \ / 1? (9.75 9) and Snake Rei_3 a (3.45 9) was added, and stirred 2 hours at 25 ° 〇 Thus, a liquid crystal alignment treatment agent (6) was obtained. No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
[0083] <合成例 7> [0083] <Synthesis Example 7>
1 八一3 (2. 3 1 9, 8. 07〇1〇1〇 1) を 1\/1? (2 1. 99) で溶 解させ、 その溶液に、 2八一 1 (5. 009 , 7.
Figure imgf000025_0002
を加えた
1 8 1 3 (2. 3 1 9, 8. 07 0 1 0 1 0 1) was dissolved with 1\/1? (2 1.99 9 ), and 2 81 1 (5. 009, 7.
Figure imgf000025_0002
Added
。 その後、 1\/1? (7. 3 1 9) を加え、 40°〇で 2時間反応させ、 樹脂固 形分濃度が 20質量%のポリアミ ド酸溶液 (◦) を得た。 このポリアミ ド酸 の粘度は、 490〇1 3 3 (25°〇 であった。 .. After that, 1\/1? (7.39) was added and reacted at 40 ° for 2 hours to obtain a polyamic acid solution (◦) with a resin solids concentration of 20% by mass. The viscosity of this polyamic acid was 490 〇 1 3 3 (25 ° 〇).
得られたポリアミ ド酸溶液 (◦) (5. 009) に、 1\/1? (9. 759 To the resulting made of Polyamide acid solution (◦) (5. 009), 1 \ / 1? (9. 75 9
) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 理剤 (7) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 ) And Snake Rei_3 a (3.45 9) was added to give stirred for 2 hours at 25 ° 〇, the liquid crystal alignment treatment agent (7). No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
[0084] <合成例 8> [0084] <Synthesis Example 8>
1 巳一2 (1. 869, 1 7. 2〇1〇1〇 1) を 1\/1? (20. 69) で溶 解させ、 その溶液に、 2巳一 1 (5. 009, 1 7. 0〇!〇!〇 I) を加えた 。 その後、 1\/1? (6. 869) を加え、 25 °〇で 4時間反応させ、 樹脂固 形分濃度が 20質量%のポリアミ ド酸溶液 (!!) を得た。 このポリアミ ド酸 の粘度は、 720〇1 3 3 (25°〇) であった。 1 Minichi 2 (1.869, 1 7. 2 0 10 10 1) was dissolved with 1\/1? (20. 69), and 2 Minichi 1 (5.009, 1) was dissolved in the solution. 7. 0! 0! 0! I) was added. Thereafter, 1 \ / 1? A (6.86 9) was added, and reacted for 4 hours at 25 ° 〇, resin solid content concentration was obtained 20 wt% of the polyamic de acid solution (!!). The viscosity of this polyamic de acid was 720_Rei_1 3 3 (25 ° 〇).
得られたポリアミ ド酸溶液 (1~1) (5. 009) に、 1\/1? (9. 759 1\/1? (9.75 9 ) was added to the obtained polyamic acid solution (1 ~ 1) (5.009).
) 及び巳〇3 (3. 459) を加え、 25°〇で 2時間撹拌して、 液晶配向処 〇 2020/175517 24 卩(:171? 2020 /007616 ) And Snake Rei_3 a (3.45 9) was added, and stirred 2 hours at 25 ° 〇 liquid crystal alignment treatment 〇 2020/175 517 24 卩 (: 171? 2020 /007616
理剤 (8) を得た。 この液晶配向処理剤には、 濁りや析出などの異常は見ら れず、 均一な溶液であった。 Obtained the medicine (8). No abnormalities such as turbidity or precipitation were observed in this liquid crystal alignment treatment agent, and it was a uniform solution.
合成例で得られた液晶配向処理剤を表 1 に示す。 Table 1 shows the liquid crystal alignment treatment agents obtained in the synthesis examples.
[0085] [表 1 ] [0085] [Table 1]
表 1 . table 1 .
Figure imgf000026_0001
Figure imgf000026_0001
[0086] <液晶配向膜の液晶性の確認> <Confirmation of liquid crystallinity of liquid crystal alignment film>
<実施例·!〜 3及び比較例 1〜 4> <Examples! ~ 3 and Comparative Examples 1 to 4>
合成例の手法で得られた液晶配向処理剤を、 細孔径 1 のメンブランフ ィルタで加圧濾過した。 得られた溶液を、 純水及び丨 (イソプロピルア ルコール) で洗浄したガラス基板 (縦: 3 0〇1 111、 横: 4 0 〇!、 厚さ : 0 . にスピンコートし、 ホツ トプレート上にて 8 0 °〇で 1 2 0秒、 I The liquid crystal alignment treatment agent obtained by the method of Synthesis Example was pressure-filtered with a membrane filter having a pore size of 1. The obtained solution was spin-coated on a glass substrate (vertical: 300111111, lateral: 400!, thickness: 0.0) washed with pure water and isopropyl alcohol. At 80 ° 〇 at 120 seconds, I
8 (赤外線) 型熱循環型クリーンオーブンにて 1 5 0 °〇で 3 0分間加熱処理 をして、 膜厚が 1 〇〇门 の液晶配向膜付きのガラス基板を得た。 A glass substrate with a liquid crystal alignment film having a film thickness of 100 mm was obtained by performing heat treatment at 150 ° C. for 30 minutes in an 8 (infrared) type heat circulation type clean oven.
得られた液晶配向膜付きのガラス基板を、 前記の顕微鏡用冷却加熱ステー ジ付きの偏光顕微鏡を用いて液晶性を確認した。 具体的には、 偏光顕微鏡観 察により、 図 1 に示すような液晶相に由来する光学組織が見られたものを液 〇 2020/175517 25 卩(:171? 2020 /007616 The liquid crystallinity of the obtained glass substrate with a liquid crystal alignment film was confirmed using the above-mentioned polarizing microscope with a cooling and heating stage for a microscope. Specifically, a liquid crystal phase-observed optical structure as shown in Fig. 1 was observed under a polarizing microscope. 〇 2020/175 517 25 卩 (: 171-1? 2020/007616
晶性有りとし、 見られなかったものを液晶性無しとした。 Crystallinity was defined, and those not observed were defined as having no liquid crystallinity.
偏光顕微鏡観察の結果を、 表 2にまとめて示す。 The results of the polarization microscope observation are summarized in Table 2.
[0087] 次に、 前記で得られた液晶配向膜付きのガラス基板から液晶配向膜を採取 し、 前記の示差走査熱量計 (0 3 0 を用いて、 吸熱ピーク (液晶相 ®液晶 相転位を示す。 丁 1 ともいう。 ) 及び、 吸熱ピーク (液晶相 ®等方相転位を 示す。 丁 2ともいう。 ) を得た。 その際、 昇温/降温速度は、 1 0 °〇/分と し、 丁 1及び丁 2は、 2回目のスキヤンから得た。 Next, a liquid crystal alignment film was sampled from the glass substrate with the liquid crystal alignment film obtained above, and the endothermic peak (liquid crystal phase/liquid crystal phase transition was measured using the differential scanning calorimeter (0 30). And the endothermic peak (which also indicates an isotropic phase transition of liquid crystal phase. Also referred to as Ding 2.) at that time, the rate of temperature increase/decrease is 10 °○/min. However, Ding 1 and Ding 2 were obtained from the second skiyan.
丁 1及び丁 2の結果を、 表 2にまとめて示す。 なお、 比較例 1〜 4では、 丁 1及び丁 2は観察されなかった。 The results of Ding 1 and Ding 2 are summarized in Table 2. In Comparative Examples 1 to 4, Ding 1 and Ding 2 were not observed.
[0088] [表 2] [0088] [Table 2]
表 2 . Table 2.
Figure imgf000027_0004
Figure imgf000027_0004
[0089] <液晶配向膜の表面形状の観察> <Observation of surface shape of liquid crystal alignment film>
<実施例 4〜 6及び比較例 5〜 8> <Examples 4 to 6 and Comparative Examples 5 to 8>
合成例の手法で得られた液晶配向処理剤を、 細孔径 1 のメンブランフ ィルタで加圧濾過した。 得られた溶液を、 純水及び丨 (イソプロピルァ ルコール) で洗浄した丨 丁〇電極付きガラス基板 (縦: 4 0 、 横: 3 0 01 111、 厚さ : 〇.
Figure imgf000027_0001
の丨 丁〇面上にスピンコートし、 ホッ トプレート 上にて 8 0 °〇で 9 0秒、 丨
Figure imgf000027_0002
(赤外線) 型熱循環型クリーンオーブンにて加 熱処理をして、 膜厚が 1 〇〇
Figure imgf000027_0003
の液晶配向膜付きのガラス基板を得た。
The liquid crystal alignment treatment agent obtained by the method of Synthesis Example was pressure-filtered with a membrane filter having a pore size of 1. The obtained solution was washed with pure water and water (isopropyl alcohol). 〇 Glass substrate with electrodes (vertical: 40, horizontal: 3001 111, thickness: 〇.
Figure imgf000027_0001
Spin coating on the surface of the table and place it on the hot plate at 80 ° for 90 seconds.
Figure imgf000027_0002
(Infrared) Heat cycle in a clean oven to obtain a film thickness of 100
Figure imgf000027_0003
A glass substrate with a liquid crystal alignment film of was obtained.
[0090] 得られた液晶配向膜付きのガラス基板を、 前記の走査型電子顕微鏡 (3巳 IV!) を用いて、 液晶配向膜の表面形状を観察した。 具体的には、 3巳1\/1観察 により、 図 2に示すような 1つのドメインの大きさが 4 0 0〜 7 0 0 n の 〇 2020/175517 26 卩(:171? 2020 /007616 The surface shape of the obtained liquid crystal alignment film-attached glass substrate was observed using the above-mentioned scanning electron microscope (3M IV!). Specifically, by observing 3M 1\/1, the size of one domain as shown in Fig. 2 is 400 to 700n. 〇 2020/175 517 26 卩 (:171? 2020 /007616
ポリ ドメイン構造が形成されているかどうかを確認した。 なお、 ここで、 ポ リ ドメイン構造とは、 特定の重合体を複数有する領域であって該領域内の該 複数の重合体の配向がそろっている領域が複数存在する構造をいう。 It was confirmed whether a polydomain structure was formed. Here, the polydomain structure refers to a structure having a plurality of specific polymers and having a plurality of regions in which the orientations of the plurality of polymers are aligned.
3巳 IV!観察の結果を、 表 3にまとめて示す。 表中、 図 2に示すようなポリ ドメイン構造が形成されているものは〇、 図 3に示すようにポリ ドメイン構 造が形成されていないものは Xと記載した。 Table 3 summarizes the results of the 3M IV! observation. In the table, those with a polydomain structure as shown in Figure 2 are marked with ◯, and those with no polydomain structure as shown in Figure 3 are marked with X.
[0091 ] [表 3] [0091] [Table 3]
表 3 . Table 3.
Figure imgf000028_0001
Figure imgf000028_0001
[0092] <液晶セル (液晶表示素子) の作製及び光学特性の評価> <Production of Liquid Crystal Cell (Liquid Crystal Display Element) and Evaluation of Optical Properties>
<実施例 7〜 1 3及び比較例 9〜 1 2> 〇 2020/175517 27 卩(:171? 2020 /007616 <Examples 7 to 13 and Comparative Examples 9 to 12> 〇 2020/175 517 27 卩 (:171? 2020 /007616
実施例及び比較例で得られた液晶配向膜付きの丨 丁〇基板を 2枚用意し、 液晶配向膜面を内側に、 液晶セルのギヤップを制御するためのビーズスぺ一 サ _ (6 . 〇 ) を挟み、 シール剤 (乂1\1 _ 1 5 0 0丁 :協立化学産業社 製) で周囲を接着して空セルを作製した。 Prepare two substrates with the liquid crystal alignment film obtained in the examples and comparative examples, with the liquid crystal alignment film surface inside, and the bead spacer _ (6. 0 for controlling the gap of the liquid crystal cell). ), and the periphery was adhered with a sealing agent (1:1 _ 150 0: manufactured by Kyoritsu Kagaku Sangyo Co., Ltd.) to prepare an empty cell.
この空セルに減圧注入法にて前記の液晶 !_ 1〜 !_ 4を注入し、 注入口を封 止して液晶セルを作製した。 その後、 1 2 0 °〇で 3 0分間加熱処理を行い、The above liquid crystals !_ 1 to !_ 4 were injected into this empty cell by a reduced pressure injection method, and the injection port was closed to manufacture a liquid crystal cell. After that, heat treatment at 120 ° 〇 for 30 minutes,
2 3 °〇で1 5時間放置して、 液晶セルを得た。 A liquid crystal cell was obtained by leaving it at 23 ° for 15 hours.
得られた液晶セルを、 前記のヘイズメーターを用いて、 電圧無印加状態 ( 〇 V) 及び電圧印加状態 (交流駆動: 2 0 V)
Figure imgf000029_0001
(曇り度) を測定 した。
Using the haze meter, the obtained liquid crystal cell was subjected to no voltage application (〇 V) and voltage application (AC drive: 20 V).
Figure imgf000029_0001
(Haze) was measured.
その際、
Figure imgf000029_0002
の測定は、 」 I 3 < 7 1 3 6に準拠し、 電圧無印加 状態の 1~1 3 2 6が高いほど散乱特性に優れ、 電圧印加状態での ! ! 3 2 6が低 いほど透明性に優れるとした。
that time,
Figure imgf000029_0002
The measurement is based on I 3 <7 1 3 6, and the higher the value of 1 to 1 3 2 6 when no voltage is applied, the better the scattering characteristics, and the lower the value of !! 3 2 6 when a voltage is applied, the more transparent it is. It is said that it has excellent properties.
㊀の測定結果を、 表 4にまとめて す。 Table 4 summarizes the measurement results for ㊀.
[0093] [表 4] [0093] [Table 4]
表 4 . Table 4.
Figure imgf000029_0003
Figure imgf000029_0003
[0094] 上記の結果からわかるように、 特定ジアミン及び特定テトラカルボン酸を 用いた特定ポリイミ ド系重合体を含む液晶配向処理剤を用いた実施例は、 そ れらを含まない、 或いはどちらか一方のみを含む液晶配向処理剤の比較例に 比べて、 液晶配向膜が液晶性を発現し、 良好な光学特性、 即ち、 電圧無印加 状態での H a z eが高く、 電圧印加状態での H a z eが低くなった。 具体的 には、 液晶性の発現は、 実施例 1〜 3と比較例 1〜 4との比較であり、 光学 特性は、 実施例 8〜 1 4と比較例 9〜 1 2との比較である。 [0094] As can be seen from the above results, Examples using a liquid crystal alignment treatment agent containing a specific polyimide polymer using a specific diamine and a specific tetracarboxylic acid Compared with the comparative example of the liquid crystal alignment treatment agent containing neither of them or only one of them, the liquid crystal alignment film exhibits liquid crystallinity, and excellent optical characteristics, that is, Haze in the absence of voltage application It was high, and H aze was low under voltage application. Specifically, the expression of liquid crystallinity is a comparison between Examples 1 to 3 and Comparative Examples 1 to 4, and the optical characteristics are a comparison between Examples 8 to 14 and Comparative Examples 9 to 12. ..
また、 液晶の△ nが大きくなるほど、 電圧無印加状態での H a z eが高く なった。 具体的には、 実施例 8〜実施例 1 1の比較である。 Moreover, the larger the Δ n of the liquid crystal, the higher the H az e in the absence of applied voltage. Specifically, it is a comparison of Examples 8 to 11.
産業上の利用可能性 Industrial availability
[0095] 液晶性を発現する液晶配向膜を用いることで、 液晶組成物中に重合性化合 物を用いることなく、 且つ、 紫外線照射工程が不要な透過散乱型の液晶表示 素子が得られる。 そのため、 本液晶表示素子は、 表示を目的とする液晶ディ スプレイ、 更には、 光の遮断と透過とを制御する調光窓や光シャッター素子 などに用いることができ、 この素子の基板には、 プラスチック基板を用いる ことができる。 また、 本素子は、 LCD (Liquid Crystal Display) や〇 L E D (Organic Light-emitting Diode) ディスプレイなどのディスプレ イ装置の導光板やこれらディスプレイを用いた透明ディスプレイの裏板に用 いることもできる。 By using the liquid crystal alignment film exhibiting liquid crystallinity, a transmission/scattering type liquid crystal display device can be obtained without using a polymerizable compound in the liquid crystal composition and requiring no ultraviolet irradiation step. Therefore, the present liquid crystal display device can be used for a liquid crystal display intended for display, and also for a dimming window or an optical shutter device for controlling the blocking and transmission of light. A plastic substrate can be used. In addition, this element can be used as a light guide plate of a display device such as an LCD (Liquid Crystal Display) or a OLED (Organic Light-emitting Diode) display, or a back plate of a transparent display using these displays.

Claims

〇 2020/175517 29 卩(:171? 2020 /007616 請求の範囲 〇 2020/175 517 29 卩(: 171-1? 2020/007616 Claims
[請求項 1] 下記式 [八 1] 〜式 [八 4] (式中、 8 1〜 8 3はそれぞれ独立し て、 1〜 1 2の整数を示す。 3 4は 1〜 5の整数を示す。
Figure imgf000031_0001
[Claim 1] The following formula [8 1] to formula [8 4] (In the formula, 81 to 83 are each independently an integer of 1 to 12. 3 4 is an integer of 1 to 5. Show.
Figure imgf000031_0001
2はそれぞれ独立して、 単結合又は炭素数 1〜 1 2のアルキレン基を 示す。
Figure imgf000031_0002
はそれぞれ独立して、 水素原子、 炭素数 1〜 5のア ルキル基又は炭素数 1〜 5のアルコキシ基から選ばれる少なくとも 1 種を示す。 ) からなる群 から選ばれる少なくとも 1種の部分構造八 と、 下記式 [巳 1] 〜式 [巳 7] (式中、 3 〜 3 0はそれぞれ独立 して、 炭素数 1〜 3のアルキル基を示す。 n 1 ~ n 4はそれぞれ独立 して、 〇〜 2の整数を示す。 ) からなる群巳から選ばれる少なくとも 1種の部分構造巳とを有する高分子を複数有してなる膜。
Each 2 independently represents a single bond or an alkylene group having 1 to 12 carbon atoms.
Figure imgf000031_0002
Each independently represents at least one selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms. At least with one partial structure eight selected from the group consisting of) the following formula [Snake 1] to formula [Snake 7] (wherein 3 ~ 3 0 are each independently an alkyl group having 1 to carbon atoms 3 N 1 to n 4 each independently represent an integer of 0 to 2.) A film comprising a plurality of polymers having at least one kind of partial structure selected from the group consisting of
[化 1] [Chemical 1]
Figure imgf000031_0003
Figure imgf000031_0003
[請求項 2] 前記膜は、 前記高分子が複数有する領域を複数有し、 該領域内の複 数の高分子の配向がそろっている、 請求項 1 に記載に膜。 [Claim 2] The film according to claim 1, wherein the film has a plurality of regions in which the polymer has a plurality, and a plurality of polymers in the regions are aligned.
[請求項 3] 複数有する前記領域の高分子の配向は互いに異なっている請求項 2 に記載の膜。 [Claim 3] The film according to claim 2, wherein the orientation of the polymers in the plurality of regions is different from each other.
[請求項 4] 前記高分子が、 アクリルポリマー、 メタクリルポリマー、 ノボラッ ク樹脂、 エポキシ樹脂、 ポリヒドロキシスチレン、 ポリイミ ド前駆体 〇 2020/175517 30 卩(:171? 2020 /007616 [Claim 4] The polymer is an acrylic polymer, a methacrylic polymer, a novolac resin, an epoxy resin, a polyhydroxystyrene, a polyimide precursor. 〇 2020/175 517 30 卩 (: 171-1? 2020/007616
、 ポリイミ ド、 ポリアミ ド、 ポリエステル、 ポリエーテル、 ポリウレ タン、 ポリ (エステルアミ ド) 、 ポリ (エステルーイミ ド) 、 ポリ ( エステルー無水物) 、 ポリ (エステルーカーボナート) 、 セルロース 又はポリシロキサンから選ばれる少なくとも 1種である請求項 1〜 3 のいずれか一項に記載の膜。 Polyimide, Polyamide, Polyester, Polyether, Polyurethane, Poly(ester amide), Poly(ester-imide), Poly(ester-anhydride), Poly(ester-carbonate), Cellulose or Polysiloxane The membrane according to any one of claims 1 to 3, which is at least one kind.
[請求項 5] 前記高分子が、 ポリイミ ド前駆体、 及び該ポリイミ ド前駆体をイミ ド化したポリイミ ドからなる群から選ばれる少なくとも 1種である請 求項 1〜 4のいずれか一項に記載の膜。 [Claim 5] The polymer according to any one of claims 1 to 4, wherein the polymer is at least one selected from the group consisting of a polyimide precursor and a polyimide obtained by imidizing the polyimide precursor. The membrane according to.
[請求項 6] 前記ポリイミ ド前駆体又は該ポリイミ ド前駆体をイミ ド化したポリ イミ ドがジアミン成分とテトラカルボン酸成分とから得られ、 前記ジ アミン成分が、 前記少なくとも 1種の部分構造 及び前記少なくとも 1種の部分構造巳のうち、 いずれか一方又は双方を有するジアミンを 有し、 前記テトラカルボン酸成分が、 いずれか一方以外である他方又 は双方を有するテトラカルボン酸を有する請求項 5に記載の膜。 [Claim 6] The polyimide precursor or a polyimide obtained by imidizing the polyimide precursor is obtained from a diamine component and a tetracarboxylic acid component, and the diamine component is the at least one partial structure. And a diamine having any one or both of the at least one partial structure, and the tetracarboxylic acid component has a tetracarboxylic acid having the other or both other than either The membrane according to 5.
[請求項 7] 前記ジアミン成分が、 前記少なくとも 1種の部分構造 を有する第 [Claim 7] The diamine component having the at least one partial structure
1のジアミンを有し、 前記テトラカルボン酸成分が、 前記少なくとも 1種の部分構造巳を有する第 1のテトラカルボン酸を有する請求項 6 に記載の膜。 7. The membrane according to claim 6, wherein the film has a diamine of 1, and the tetracarboxylic acid component has a first tetracarboxylic acid having the at least one kind of partial structure.
[請求項 8] 前記第 1のジアミンが、 下記式 [ 1 八] (式中、 X 1及び X 3はそ れぞれ独立して、 単結合、 一〇一、 一 0〇一、
Figure imgf000032_0001
- 0 0 0 —、 _ C〇N H—、 _ 1\1 1~1〇〇_又は _ 1\1 1~1—から選ばれる少なくと も 1種を示す。 X 2は前記式 [八 1] 〜式 [八 4] から選ばれる少な くとも 1種を示す。 ) であり、 前記第 1のテトラカルボン酸が、 下記 式 [2巳] (式中、 丫1及び丫5はそれぞれ独立して、 芳香環、 脂環 式基又は複素環基から選ばれる少なくとも 1種を示す。 丫2及び丫4 はそれぞれ独立して、 単結合、 一〇一、 一0〇一 0 0 0 s 0 〇〇一、
Figure imgf000032_0003
〇一又は一
Figure imgf000032_0002
[Claim 8] The first diamine is represented by the following formula [18] (wherein, X 1 and X 3 are each independently a single bond, 101, 1001,
Figure imgf000032_0001
-0 0 0 —, _ C 〇 NH—, _ 1\1 1 to 1 〇 _ or _ 1\1 1 to 1 indicates at least one kind. X 2 represents at least one selected from the above formula [8 1] to formula [8 4]. Wherein the first tetracarboxylic acid has the following formula [2] (wherein, 1 and 5 are each independently at least 1 selected from an aromatic ring, an alicyclic group or a heterocyclic group) 2 and 4 are each independently a single bond, 10 1, 100 1 0 0 0 s 0 0 0 1,
Figure imgf000032_0003
〇 one or one
Figure imgf000032_0002
くとも 1種を示す。 丫 3は前記式 [巳 1] 〜式 [巳 7] から選ばれる 〇 2020/175517 31 卩(:171? 2020 /007616 Indicates at least one species. [ 3 ] is selected from the above formula [Mis 1] to [Mis 7] 〇 2020/175 517 31 卩(: 171-1? 2020/007616
少なくとも 1種を示す。 门 5及び n 6はそれぞれ独立して、 0又は 1 の整数を示す。 ) である請求項 7に記載の膜。 Indicates at least one species. Each of 5 and n 6 independently represents an integer of 0 or 1. ) Is the membrane according to claim 7.
[化 2] [Chemical 2]
Figure imgf000033_0001
Figure imgf000033_0001
[請求項 9] 前記ジアミン成分が、 前記少なくとも 1種の部分構造巳を有する 第 2のジアミンを有し、 前記テトラカルボン酸成分が、 前記少なくと も 1種の部分構造 を有する第 2のテトラカルボン酸を有する請求項 6〜 8のいずれか一項に記載の膜。 [Claim 9] The diamine component has a second diamine having at least one kind of partial structure, and the tetracarboxylic acid component has a second tetraamine having at least one kind of partial structure. The membrane according to any one of claims 6 to 8, which comprises a carboxylic acid.
[請求項 10] 前記第 2のジアミンが下記式 [ 1 巳] (式中、 X 4は前記式 [巳 1 ] 〜式 [巳 7] から選ばれる少なくとも 1種を示す。 ) であり、 前記 第 2のテトラカルボン酸が下記式 [2八] (式中、 丫6及び丫1 0はそ れぞれ独立して、 芳香環、 脂環式基又は複素環基から選ばれる少なく とも 1種を示す。 丫7及び丫9はそれぞれ独立して、 単結合、 一〇一 、 _〇〇一、 _〇〇〇_、 _〇〇〇_、 _ C〇N H—、
Figure imgf000033_0002
[Claim 10] The second diamine is represented by the following formula [1] (wherein X 4 represents at least one selected from the formulas [1] to [7]), and The second tetracarboxylic acid is represented by the following formula [2-8] (wherein each of 6 and 10 is independently at least one selected from an aromatic ring, an alicyclic group or a heterocyclic group. 7 and 9 are each independently a single bond, 10 1, _ 〇 001, _ 〇 〇 _, _ 〇 〇 _, _ C 〇 NH—,
Figure imgf000033_0002
又は _ 1\1 1~1—から選ばれる少なくとも 1種を示す。 丫 8は前記式 [八 1] 〜式 [八 4] から選ばれる少なくとも 1種を示す。 n 7及びn 8 はそれぞれ独立して、 0又は 1の整数を示す。 ) Or at least one selected from _ 1\1 1 to 1—. Reference numeral 8 represents at least one selected from the formula [8 1] to the formula [8 4]. n 7 and n 8 each independently represent an integer of 0 or 1. )
である請求項 9に記載の膜。 The membrane according to claim 9, which is
[化 3] [Chemical 3]
Figure imgf000033_0003
Figure imgf000033_0003
[請求項 1 1] 前記高分子が液晶性高分子である請求項 1〜 1 〇のいずれか一項に 〇 2020/175517 32 卩(:171? 2020 /007616 [Claim 11] The polymer according to any one of claims 1 to 10, wherein the polymer is a liquid crystalline polymer. 〇 2020/175 517 32 卩 (:171? 2020 /007616
記載の膜。 The described membrane.
[請求項 12] 前記膜が液晶配向膜である請求項 1〜 1 1のいずれか一項に記載の 膜。 [Claim 12] The film according to any one of claims 1 to 11, wherein the film is a liquid crystal alignment film.
[請求項 13] 前記液晶配向膜が、 80〜 350°◦の範囲で液晶性を発現する請求 項 1 2に記載の膜。 [Claim 13] The film according to claim 12, wherein the liquid crystal alignment film exhibits liquid crystallinity in a range of 80 to 350 ° .
[請求項 14] 下記式 [八 1] 〜式 [八 4] (式中、 8 1〜 83はそれぞれ独立し て、 1〜 1 2の整数を示す。 34は 1〜 5の整数を示す。
Figure imgf000034_0001
[Claim 14] The following formula [8 1] to formula [8 4] (wherein 81 to 83 each independently represent an integer of 1 to 12; 34 represents an integer of 1 to 5).
Figure imgf000034_0001
2はそれぞれ独立して、 単結合又は炭素数 1〜 1 2のアルキレン基を 示す。
Figure imgf000034_0002
はそれぞれ独立して、 水素原子、 炭素数 1〜 5のア ルキル基又は炭素数 1〜 5のアルコキシ基から選ばれる少なくとも 1 種を示す。 ) からなる群 から選ばれる少なくとも 1種の部分構造八 と、 下記式 [巳 1] 〜式 [巳 7] (式中、 3 〜 30はそれぞれ独立 して、 炭素数 1〜 3のアルキル基を示す。 n 1 ~n 4はそれぞれ独立 して、 〇〜 2の整数を示す。 ) からなる群巳から選ばれる少なくとも 1種の部分構造巳とを有する高分子を複数有してなる膜の製造方法で あって、
Each 2 independently represents a single bond or an alkylene group having 1 to 12 carbon atoms.
Figure imgf000034_0002
Each independently represents at least one selected from a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms. At least with one partial structure eight selected from the group consisting of) the following formula [Snake 1] to formula [Snake 7] (wherein 3 ~ 3 0 are each independently an alkyl group having 1 to carbon atoms 3 N 1 to n 4 each independently represents an integer of 0 to 2.) of a film having a plurality of polymers having at least one kind of partial structure selected from the group consisting of It’s a manufacturing method,
(丨 ) 第 1の基板を準備する工程; (丨) Step of preparing the first substrate;
( I I ) 前記高分子又はその前駆体を有する膜形成用液を準備する 工程; (II) A step of preparing a film-forming liquid containing the polymer or its precursor;
( I I I ) 前記膜形成用液を前記第 1の基板の片面に塗布する工程 ;及び (IIII) A step of applying the film forming liquid on one surface of the first substrate; and
( I V) 塗布面を加温する工程; (IV) Step of heating the coated surface;
を有する、 上記方法。 \¥0 2020/175517 33 卩(:17 2020 /007616 Having the above method. \¥0 2020/175 517 33 卩 (: 17 2020 /007616
[化 4] [Chemical 4]
Figure imgf000035_0001
Figure imgf000035_0001
[請求項 15] 前記 (丨 V) 工程において、 前記高分子を複数有する領域が複数形 成され、 該領域内における該複数の重合体の配向が揃うように加温す る請求項 1 4記載の方法。 15. The method according to claim 14, wherein in the step (V), a plurality of regions having a plurality of the polymers are formed, and heating is performed so that the plurality of polymers are aligned in the regions. the method of.
[請求項 16] 前記 (丨 V) 工程において、 前記高分子が液晶相を発現する温度域 まで加温する請求項 1 4又は 1 5に記載の方法。 16. The method according to claim 14 or 15, wherein in the step (v), the polymer is heated to a temperature range in which a liquid crystal phase is exhibited.
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