WO2016002946A1 - Composition pour fabriquer une couche dotée de fonctions optiques, procédé de fabrication de film optique contenant une couche dotée de fonctions optiques, et film optique - Google Patents

Composition pour fabriquer une couche dotée de fonctions optiques, procédé de fabrication de film optique contenant une couche dotée de fonctions optiques, et film optique Download PDF

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Publication number
WO2016002946A1
WO2016002946A1 PCT/JP2015/069337 JP2015069337W WO2016002946A1 WO 2016002946 A1 WO2016002946 A1 WO 2016002946A1 JP 2015069337 W JP2015069337 W JP 2015069337W WO 2016002946 A1 WO2016002946 A1 WO 2016002946A1
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Prior art keywords
optical functional
layer
functional layer
composition
liquid crystal
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PCT/JP2015/069337
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English (en)
Japanese (ja)
Inventor
武田　淳
暢之 芥川
渉 星野
顕夫 田村
西川　秀幸
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富士フイルム株式会社
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Priority to JP2016531480A priority Critical patent/JP6335294B2/ja
Priority to CN201580035178.2A priority patent/CN106471076B/zh
Priority to KR1020167035017A priority patent/KR101956568B1/ko
Publication of WO2016002946A1 publication Critical patent/WO2016002946A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D201/00—Coating compositions based on unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements

Definitions

  • the present invention relates to a composition for producing an optical functional layer, a method for producing an optical film including the optical functional layer, and a method for producing the optical film.
  • a method for producing a polymer film there is a method of coating film formation in addition to a method of producing by polymer stretching.
  • the uniformity of the coating surface quality greatly affects the quality of the film.
  • repellency occurs in which the coating solution is repelled on the surface of the crater, good film formation becomes difficult.
  • the repellency is more likely to occur because the higher the surface tension of the coating solution, the stronger the force that minimizes the surface area of the coating solution.
  • it is effective to add a surfactant to the coating liquid and adjust the surface state in contact with the gas.
  • Patent Documents 1 and 2 a wide range of fluorine-based surfactants and silicone-based surfactants that have high ability to reduce dynamic surface tension immediately after formation of a new surface and good solubility in coating solutions.
  • Patent Documents 1 and 2 a wide range of fluorine-based surfactants and silicone-based surfactants that have high ability to reduce dynamic surface tension immediately after formation of a new surface and good solubility in coating solutions.
  • Patent Document 3 a wide range of fluorine-based surfactants and silicone-based surfactants that have high ability to reduce dynamic surface tension immediately after formation of a new surface and good solubility in coating solutions.
  • an object of the present invention is to provide a composition for producing an optical functional layer that is less likely to cause repelling even when its viscosity is low, when used in coating film formation.
  • the present invention also provides a composition for preparing an optical functional layer that hardly causes repelling of the coating liquid for forming the upper layer when the optical functional layer after preparation is used as a lower layer and an upper layer is coated on the surface. Is also an issue.
  • this invention makes it a subject to provide the optical film which has an optical functional layer which can be used as a support body film for producing a laminated film, etc., and is hard to produce the repelling of the coating liquid for upper layer formation. .
  • the present inventors diligently studied the composition of the coating liquid as the composition for producing an optical functional layer, and determined that the degree of repellency during coating film formation varies depending on the solvent of the coating liquid. I found it. Surprisingly, it has also been found that the degree of repellency of the coating solution when the upper layer is further formed varies depending on the solvent of the coating solution used even after the solvent has been removed by drying. The present inventors have further studied based on these findings and completed the present invention.
  • a composition for preparing an optical functional layer The viscosity is 0.3 to 30.0 mPa ⁇ s
  • An optically functional component comprising a solvent and one or more compounds selected from the group consisting of polymerizable compounds and polymers;
  • the solvent is a mixed solvent of a low surface tension solvent having a surface tension of 10 to 22 mN / m and a standard surface tension solvent having a surface tension of more than 22 mN / m, and the content of the low surface tension solvent relative to the total amount of the solvent is 5
  • a composition for producing an optical functional layer having a mass% to 40 mass%.
  • Applying the optical functional layer-producing composition according to any one of [1] to [5] on a support to obtain a coating film, and drying the coating film to support the support The manufacturing method of an optical film including forming the optical functional layer 1 on a body.
  • Composition 2 contains a polymerizable compound, In the formation of the layer 2, the production method according to [8], comprising subjecting the dried coating film to a curing reaction. [10] The production method according to [8] or [9], wherein the composition 2 is the composition for producing an optical functional layer according to any one of [1] to [5]. [11] An optical film including the optical functional layer 1 formed from a coating film of the composition for producing an optical functional layer according to any one of [1] to [5]. [12] An optical film comprising the support and the optical functional layer 1 obtained by the method according to [6] or [7].
  • the present invention provides provision of a composition for producing an optical functional layer that is less likely to cause repelling even when the viscosity is low.
  • the present invention also provides a composition for producing an optical functional layer that hardly causes repelling in the coating liquid for forming the upper layer when the optical functional layer after production is used as a lower layer and an upper layer is applied and formed on the surface.
  • Manufacture an optical film having an optical functional layer that can be used as a support film for producing a laminated film with the composition for producing an optical functional layer of the present invention and hardly causes repelling in a coating solution for forming an upper layer. can do. Therefore, it is possible to produce a laminated film having various functions using the composition for producing an optical functional layer of the present invention.
  • ⁇ is used to mean that the numerical values described before and after it are included as a lower limit value and an upper limit value.
  • ((meth) acryl group” is used to mean “one or both of an acrylic group and a methacryl group”.
  • composition for optical functional layer preparation is a composition containing an optical functional component and a solvent. That is, the composition for preparing an optical functional layer may be a solution or a dispersion.
  • the composition for producing an optical functional layer of the present invention may be any composition that can be used as a coating liquid in coating film formation in the process of producing an optical film.
  • the composition for preparing an optical functional layer is a composition capable of forming an optical functional layer from a coated film, for example.
  • a solvent can be formed by drying a coated composition in a coated state.
  • the optical functional layer may be obtained by removing the film, or the optically functional layer may be obtained by drying the coating film composition and curing the dried coating film. .
  • the entire optical film may be formed from the composition for producing an optical functional layer, or a part of the optical film may be formed.
  • the composition for preparing an optical functional layer may form part or one of a plurality of layers forming an optical film.
  • the optical functional layer include an optically anisotropic layer such as a ⁇ / 4 layer, a light reflecting layer such as a polarizing layer, a layer in which a cholesteric liquid crystal phase is fixed, a light absorbing layer, and a transparent layer.
  • the composition for preparing an optical functional layer of the present invention hardly causes repelling even when the viscosity is low.
  • the viscosity of the composition for preparing an optical functional layer is 0.3 to 30.0 mPa ⁇ s, preferably 0.4 to 20 mPa ⁇ s, and more preferably 0.5 to 15 mPa ⁇ s.
  • the composition for producing an optical functional layer preferably does not contain a composition used in the casting method. This is because the composition used in the casting method usually has a high viscosity.
  • a viscosity means the value measured using the vibration viscometer on 25 degreeC conditions. As the vibration type viscometer, for example, Vm-100 manufactured by Seconic Corporation can be used. The viscosity can be adjusted mainly by adding a solvent content or polymer type molecules.
  • the composition for producing an optical functional layer of the present invention contains a solvent.
  • the solvent contained in the composition for preparing an optical functional layer is a mixed solvent of a low surface tension solvent and a standard surface tension solvent.
  • the total amount of the low surface tension solvent relative to the total amount of the solvent contained in the composition for producing an optical functional layer is 5% by mass to 40% by mass, and preferably 7% by mass to 36% by mass. % To 30% by mass is more preferable, and 10% to 25% by mass is even more preferable.
  • the inventors of the present invention have a composition for producing an optical functional layer containing a low surface tension solvent at a certain ratio, and it is difficult to cause repelling during coating, and the film surface is uniform and has no unevenness. It has been found that a functional layer can be produced. Surprisingly, repelling and optical unevenness did not occur without adding a fluorine-based surfactant or a silicone-based surfactant used in the prior art.
  • the low surface tension solvent shows a surface smoothing (leveling) function like the surfactant in the above-mentioned prior art, and the resistance to wind in the surrounding environment is improved. In addition, it is considered that optical unevenness is hardly caused and repelling is suppressed.
  • the inventors of the present invention used an optical functional layer produced by using the composition for producing an optical functional layer of the present invention as a lower layer (sometimes referred to as “optical functional layer 1” in this specification).
  • a lower layer sometimes referred to as “optical functional layer 1” in this specification.
  • an upper layer which may correspond to a layer referred to as “layer 2” in this specification
  • repelling during coating hardly occurs and the film surface is uniform.
  • a uniform upper layer can be produced.
  • the low surface tension solvent that exhibited the planar smoothing (leveling) function during the coating process volatilizes and disappears during drying during film formation.
  • the layer formed from the composition for producing an optical functional layer of the present invention is used as a lower layer, and as an upper layer forming coating solution solvent when an upper layer is formed on the surface by coating film formation. Can use a wide range of solvents.
  • the surface tension of the low surface tension solvent is 10 to 22 mN / m (10 to 22 dyn / cm), preferably 15 to 21 mN / m, and more preferably 18 to 20 mN / m.
  • the surface tension of the standard surface tension solvent is greater than 22 mN / m, preferably 23 to 50 mN / m, and more preferably 23 to 40 mN / m.
  • the difference between the surface tension of the low surface tension solvent and the surface tension of the standard surface tension solvent is preferably 2 mN / m or more, more preferably 3 mN / m or more, and 4 to 20 mN / m or more. More preferably, it is 0.005 to 0.015 mN / m.
  • the surface tension of a solvent is a value as described in a solvent handbook (Kodansha, 1976 issuance).
  • the surface tension of the solvent is a physical property value that can be measured by, for example, an automatic surface tension meter CBVP-A3 manufactured by Kyowa Interface Science Co., Ltd. The measurement may be performed at 25 ° C.
  • Each of the low surface tension solvent and the standard surface tension solvent may be a mixed solvent. At that time, the surface tension of each solvent constituting the low surface tension solvent as the mixed solvent and the surface tension of each solvent constituting the standard surface tension solvent as the mixed solvent may be in the above range.
  • the boiling point of the low surface tension solvent is preferably higher than that of the standard surface tension solvent.
  • the solubility of the optical functional component in the low surface tension solvent is preferably lower than the solubility of the optical functional component in the standard surface tension solvent.
  • the solubility of the optical functional component may be compared with the solubility of one or more compounds selected from the group consisting of a polymerizable compound and a polymer in the optical functional component.
  • the boiling point of the low surface tension solvent is higher than that of the standard surface tension solvent, and the solubility of the optical functional component in the low surface tension solvent is lower than the solubility of the optical functional component in the standard surface tension solvent. More preferred.
  • the composition for optical functional layer preparation which can suppress the repelling at the time of application
  • the standard surface tension solvent with higher solubility of the optical functional component and lower boiling point is volatilized first, resulting in a low surface tension solvent. It is thought that the effect of preventing repellency and unevenness due to the leveling function of the low surface tension solvent can be enhanced by remaining.
  • an organic solvent is preferably used, and a low surface tension solvent and a standard surface tension solvent can be selected from these.
  • organic solvents include alcohols (eg, ethanol, tert-butyl alcohol), amides (eg, N, N-dimethylformamide), sulfoxides (eg, dimethyl sulfoxide), heterocyclic compounds (eg, pyridine), hydrocarbons (Eg, heptane, cyclopentane, benzene, hexane, tetrafluoroethylene), alkyl halides (eg, chloroform, dichloromethane), esters (eg, methyl acetate, butyl acetate, isopropyl acetate), ketones (eg, acetone, methyl ethyl ketone, cyclohexanone) ), Ether (eg, tetrahydrofuran, 1,2-dimethoxyethane), and amine (eg, trie
  • low surface tension solvents examples include tert-butyl alcohol (19.5 mN / m), tetrafluoroethylene (TFE, 20.6 mN / m), triethylamine (20.7 mN / m), cyclopentane (21.8 mN / m). m), heptane (19.6 mN / m), and a mixed solvent composed of a combination of any two or more of these solvents.
  • TFE tetrafluoroethylene
  • TFE tetrafluoroethylene
  • TFE tetrafluoroethylene
  • triethylamine 20.7 mN / m
  • cyclopentane 21.8 mN / m
  • heptane heptane (19.6 mN / m)
  • a mixed solvent composed of a combination of any two or more of these solvents. The numerical value indicates the surface tension.
  • tert-butyl alcohol tetrafluoroethylene, triethylamine, and cyclopentane are preferable from the viewpoint of safety, tert-butyl alcohol or tetrafluoroethylene is more preferable, and tert-butyl alcohol is more preferable.
  • Examples of standard surface tension solvents include methyl ethyl ketone (MEK, 23.9 mN / m), methyl acetate (24.8 mN / m), methyl isobutyl ketone (MIBK, 25.4 mN / m), cyclohexanone (34.5 mN / m). ), Acetone (23.7 mN / m), isopropyl acetate (0.022.1 mN / m), and a mixed solvent composed of a combination of any two or more of these solvents.
  • the numerical value indicates the surface tension.
  • methyl ethyl ketone, a mixed solvent of cyclohexanone and another solvent, a mixed solvent of methyl acetate and methyl isobutyl ketone, and the like are preferable.
  • the concentration of the solvent with respect to the total mass of the composition for producing an optical functional layer is preferably 95 to 50% by mass, more preferably 93 to 60% by mass, and further preferably 90 to 75% by mass. .
  • the solvent of the composition for preparing an optical functional layer is preferably removed by 95% by mass or more, and by 98% by mass or more, with respect to the total amount of the solvent. It is more preferable that 99% by mass or more is removed, and it is particularly preferable that 100% by mass is substantially removed.
  • the optical functional component is a component constituting the optical functional layer or a component that is a raw material of the constituent component.
  • the optical functional component may be a component obtained by removing the solvent from the composition for preparing an optical functional layer.
  • the optically functional component includes one or more compounds selected from the group consisting of polymerizable compounds and polymers.
  • the optical functional component includes a polymerizable compound (monomer) that can form a polymer by a polymerization reaction, a polymer, or a mixture thereof.
  • the optical functional component preferably contains a polymerizable compound or a mixture of a polymerizable compound and a polymer, and more preferably contains a polymerizable compound.
  • the optical functional component is not particularly limited as long as the optical functional layer can be formed by a film forming method including a coating step of the composition for preparing an optical functional layer.
  • the optical functional component is preferably one that can form an optical functional layer by a film forming method that does not include a stretching step.
  • the optical functional component may contain one or more compounds selected from the group consisting of a polymerizable compound and a polymer, and other additives such as a polymerization initiator and a chiral agent.
  • the optical functional component is preferably a liquid crystal composition containing a liquid crystal compound.
  • the polymerizable compound is a compound having a polymerizable group which is a functional group capable of addition polymerization reaction or condensation polymerization reaction.
  • the polymerizable compound may have one polymerizable group or two or more polymerizable groups.
  • Examples of the polymerizable group include a radical polymerizable group and a cationic polymerizable group. A combination of both may be used.
  • Examples of the radical polymerizable group include a vinyl group and a (meth) acryl group.
  • the cationic polymerizable group include an epoxy group, an oxetanyl group, and a vinyl ether group.
  • preferred polymerizable groups include acryl groups and methacryl groups.
  • the liquid crystal compound includes a high molecular liquid crystal compound (polymer) and a low molecular liquid crystal compound.
  • Polymer generally refers to a polymer having a degree of polymerization of 100 or more (Polymer Physics / Phase Transition Dynamics, Masao Doi, 2 pages, Iwanami Shoten, 1992).
  • the liquid crystal compound includes a rod-like liquid crystal compound and a disk-like liquid crystal compound.
  • polymer liquid crystal compound examples include various main-chain and side-chain liquid crystal compounds in which a conjugated linear atomic group (mesogen) that imparts liquid crystal orientation is introduced into the main chain or side chain of the polymer. Etc.
  • main-chain polymer liquid crystal compound examples include polyester-based polymer liquid crystal compounds, discotic liquid crystal compounds, and cholesteric liquid crystal compounds having a structure in which a mesogen group is bonded at a spacer portion that imparts flexibility.
  • Examples of the side chain type polymer liquid crystal compound include polysiloxane, polyacrylate, polymethacrylate or polymalonate as a main chain skeleton, and a mesogen portion consisting of a para-substituted cyclic compound unit capable of imparting nematic orientation as a side chain.
  • Examples thereof include a polymer compound in which a chain skeleton and a side chain are bonded via a spacer portion composed of a conjugated atomic group.
  • Examples of the polymer liquid crystal compound include liquid crystal polymers described in JP-A-2004-285174, JP-A-2004-285169, JP-A-2005-139375, and thermotropic liquid crystal properties described in JP-A-2011-237513. Examples thereof include polymers.
  • the low molecular liquid crystal compound contained in the optical functional component is preferably a polymerizable compound (polymerizable liquid crystal compound) capable of forming a polymer by a polymerization reaction.
  • rod-like liquid crystal compound examples include azomethines, azoxys, cyanobiphenyls, cyanophenyl esters, benzoic acid esters, cyclohexanecarboxylic acid phenyl esters, cyanophenylcyclohexanes, cyano-substituted phenylpyrimidines, alkoxy-substituted phenylpyrimidines, Phenyldioxanes, tolanes and alkenylcyclohexylbenzonitriles are preferably used.
  • the rod-like liquid crystal compound which is a polymerizable liquid crystal compound Makromol. Chem.
  • JP-A Nos. 0600, 98/23580, 98/52905, JP-A-1-272551, JP-A-6-16616, JP-A-7-110469, JP-A-11-80081, and Japanese Patent Application No. 2001-64627 Etc. can be used.
  • the rod-like liquid crystal compound for example, those described in JP-A-11-513019 and JP-A-2007-279688 can be preferably used.
  • Examples of the discotic liquid crystal compound include compounds described in JP 2007-108732 A and JP 2010-244038 A. Below, the preferable example of a polymeric discotic liquid crystal compound is shown.
  • the optical functional component may contain a polymerization initiator.
  • the polymerization initiator include ⁇ -carbonyl compounds (described in US Pat. Nos. 2,367,661 and 2,367,670), acyloin ether (described in US Pat. No. 2,448,828), ⁇ -hydrocarbon substituted aromatics.
  • An acyloin compound (described in US Pat. No. 2,722,512), a polynuclear quinone compound (described in US Pat. Nos.
  • the optical functional layer formed from the composition for preparing an optical functional layer may be a layer in which a cholesteric liquid crystal phase is fixed.
  • the optical functional component preferably contains a chiral agent.
  • the chiral agent various known chiral agents (for example, described in Liquid Crystal Device Handbook, Chapter 3-4-3, TN, chiral agent for STN, page 199, edited by Japan Society for the Promotion of Science, 42nd Committee, 1989) You can choose from.
  • a chiral agent generally contains an asymmetric carbon atom, but an axially asymmetric compound or a planar asymmetric compound containing no asymmetric carbon atom can also be used as the chiral agent.
  • Examples of the axial asymmetric compound or the planar asymmetric compound include binaphthyl, helicene, paracyclophane, and derivatives thereof.
  • the chiral agent may have a polymerizable group.
  • the rod-shaped liquid crystal compound used in combination also has a polymerizable group, it is derived from the rod-shaped liquid crystal compound by a polymerization reaction between the chiral agent having a polymerizable group and the polymerizable rod-shaped liquid crystal compound.
  • a polymer having a repeating unit derived from a chiral agent is derived from the rod-shaped liquid crystal compound.
  • the polymerizable group possessed by the chiral agent having a polymerizable group is preferably the same group as the polymerizable group possessed by the polymerizable rod-like liquid crystal compound. Therefore, the polymerizable group of the chiral agent is also preferably an unsaturated polymerizable group, an epoxy group or an aziridinyl group, more preferably an unsaturated polymerizable group, and an ethylenically unsaturated polymerizable group. Particularly preferred.
  • the chiral agent may be a liquid crystal compound.
  • Examples of the chiral agent exhibiting a strong twisting force include, for example, JP 2010-181852 A, JP 2003-287623 A, JP 2002-80851 A, JP 2002-80478 A, and JP 2002-302487 A.
  • the chiral agent described in the gazette is mentioned, and can be preferably used.
  • isosorbide compounds having a corresponding structure can be used for the isosorbide compounds described in these publications, and isosorbide compounds having a corresponding structure can be used for the isomannide compounds described in these publications. It can also be used.
  • the optical functional component does not substantially contain a fluorine-based surfactant and a silicone-based surfactant. That is, it is preferable that the composition for preparing an optical functional layer does not substantially contain a fluorine-based surfactant and a silicone-based surfactant.
  • the low surface tension solvent is likely to function as described above. Further, the surface of the formed optical functional layer is less likely to be hydrophobic, and repelling is less likely to occur when the upper layer is formed.
  • the content of the fluorine-based surfactant and the silicone-based surfactant in the composition for producing an optical functional layer is 0.5% by mass or less based on the total mass of the composition for producing an optical functional layer, Preferably, it may be 0.3% by mass or less. For example, it may be 0.1 mass% or less, 0.05 mass% or less, 0.01 mass% or less, or 0.001 mass% or less.
  • the fluorine-based surfactant is a compound containing fluorine and is unevenly distributed on the surface in the solvent used in the composition for producing an optical functional layer.
  • the fluorosurfactant having a hydrophobic portion include those containing fluorine among compounds described as alignment control agents described in paragraphs 0028 to 0034 of JP2011-191582A, and Japanese Patent No. 2841611.
  • the fluorine-based surfactants described in paragraphs 0017 to 0019 of JP-A-2005-272560 examples of commercially available fluorosurfactants include Surflon manufactured by AGC Seimi Chemical Co., Ltd. and MegaFac manufactured by DIC Corporation.
  • the silicone-based surfactant is a compound containing silicone, and is a compound unevenly distributed on the surface in the solvent used in the composition for producing an optical functional layer.
  • the silicone surfactant include polymethylphenylsiloxane, polyether-modified silicone oil, polyether-modified dimethylpolysiloxane, dimethylsilicone, diphenylsilicone, hydrogen-modified polysiloxane, vinyl-modified polysiloxane, hydroxy-modified polysiloxane, Amino modified polysiloxane, carboxyl modified polysiloxane, chloro modified polysiloxane, epoxy modified polysiloxane, methacryloxy modified polysiloxane, mercapto modified polysiloxane, fluorine modified polysiloxane, long chain alkyl modified polysiloxane, phenyl modified polysiloxane, silicone modified copolymer And low molecular weight compounds containing silicon atoms.
  • silicone surfactants include Shin-Etsu Chemical KF-96, X-22-945, Tore Silicone DC3PA, DC7PA, SH11PA, SH21PA, SH28PA, SH29PA, SH30PA, FS -1265-300 (above, manufactured by Toray Dow Corning Silicone Co., Ltd.), TSF-4300, -4440, -4445, -4446, -4442, -4460 (above, GE Toshiba Silicon Co., Ltd.) ), Polysiloxane polymer KP341 (manufactured by Shin-Etsu Chemical Co., Ltd.), BYK-301, BYK-302, BYK-307, BYK-325, BYK-331, BYK-333, BYK-341 BYK-345, BYK-346, BYK-348, BYK-375 (BIC Chemi) -Japan Co., Ltd.) Aron GS-30 (manufactured by Toa Go, To
  • the optical functional layer is formed from a coating film made of the composition for producing an optical functional layer.
  • the optical functional layer may be, for example, a layer formed by applying a composition for preparing an optical functional layer on a support and drying the resulting coating film, and further by light irradiation or heating. It may be a layer formed by being subjected to a curing process.
  • composition for producing an optical functional layer can be performed by a method of developing by an appropriate method such as a roll coating method, a gravure printing method, or a spin coating method. Furthermore, it can be performed by various methods such as a wire bar coating method, an extrusion coating method, a direct gravure coating method, a reverse gravure coating method, and a die coating method. Alternatively, the coating film can be formed by ejecting the composition for producing an optical functional layer from a nozzle using an ink jet apparatus.
  • Drying may be performed by standing or may be performed by heating.
  • an optical function derived from the optical functional component may be expressed.
  • a liquid crystal phase may be formed in the process of removing the solvent by drying.
  • the liquid crystal phase may be formed by setting the transition temperature to the liquid crystal phase by heating.
  • the liquid crystal phase can be stably formed by heating to the temperature of the isotropic phase and then cooling to the liquid crystal phase transition temperature.
  • the liquid crystal phase transition temperature is preferably in the range of 10 to 250 ° C., more preferably in the range of 10 to 150 ° C. from the viewpoint of production suitability and the like.
  • a cooling step or the like may be required to lower the temperature to a temperature range exhibiting a liquid crystal phase.
  • a high temperature is required to make the isotropic liquid state higher than the temperature range once exhibiting the liquid crystal phase, which is disadvantageous from waste of thermal energy, deformation of the substrate, and alteration.
  • the optical functional component contains a polymerizable compound
  • the optical functional component contains a polymerizable liquid crystal compound
  • the molecular alignment state of the liquid crystal compound can be maintained and fixed by curing. Curing can be carried out by a polymerization reaction of a polymerizable group in the polymerizable compound.
  • the polymerization reaction includes a thermal polymerization reaction using a thermal polymerization initiator and a photopolymerization reaction using a photopolymerization initiator.
  • a photopolymerization reaction is preferred.
  • the light irradiation for the polymerization of the polymerizable compound, particularly the polymerizable liquid crystal compound preferably uses ultraviolet rays.
  • the irradiation energy is preferably 50 mJ / cm 2 to 1000 J / cm 2 , more preferably 100 to 800 mJ / cm 2 .
  • light irradiation may be performed under heating conditions.
  • ultraviolet irradiation may be performed under heating conditions.
  • the oxygen concentration in the atmosphere is related to the degree of polymerization, if the desired degree of polymerization is not reached in the air and the film strength is insufficient, the oxygen concentration in the atmosphere is reduced by a method such as nitrogen substitution. It is preferable.
  • a preferable oxygen concentration is preferably 10% or less, more preferably 7% or less, and most preferably 3% or less.
  • the reaction rate of the curing reaction (for example, polymerization reaction) that proceeds by irradiation with ultraviolet rays is 60% or more from the viewpoint of maintaining the mechanical strength of the layer and suppressing unreacted substances from flowing out of the layer. Preferably, it is 70% or more, more preferably 80% or more.
  • a method of increasing the irradiation amount of ultraviolet rays to be irradiated and polymerization under a nitrogen atmosphere or heating conditions are effective. Moreover, after superposing
  • the reaction rate can be measured by comparing the absorption intensity of the infrared vibration spectrum of a reactive group (for example, a polymerizable group) before and after the reaction proceeds.
  • the optical properties based on the orientation of the liquid crystal compound molecules of the optical functional layer using the liquid crystal compound as the optical functional component are sufficient as long as they are retained in the layer, and are cured.
  • the liquid crystal composition of the later optical functional layer no longer needs to exhibit liquid crystallinity.
  • the liquid crystal compound molecules may become high molecular weight due to a curing reaction and may no longer have liquid crystallinity.
  • the optical functional layer is also preferably a cholesteric liquid crystal layer formed by fixing a cholesteric liquid crystal phase.
  • cholesteric liquid crystal layer and the method for producing the cholesteric liquid crystal layer reference can be made, for example, to those described in JP-A-1-133003, JP-A-3416302, JP-A-3363565, and JP-A-8-271731.
  • the optical film can be produced by forming the optical functional layer on the support as described above.
  • the support may be peeled off after the optical functional layer is formed.
  • the phrase “on the support” means “directly on the support surface” or “through another layer formed on the support surface”. You may form an optical functional layer in the surface of the other layer formed previously.
  • the composition for preparing an optical functional layer of the present invention is less likely to cause repellency when applied and formed, and particularly less likely to cause repellency when applied to the surface of a support, alignment layer, or liquid crystal layer described below. It is also preferable to form an optical functional layer on the surface of the optical functional layer as described above. Since the optical functional layer formed from the composition for preparing an optical functional layer of the present invention hardly causes repelling, various laminated optical films can be prepared.
  • the optical film includes an optical functional layer formed as described above.
  • the optical film may include one optical functional layer or two or more layers.
  • the optical film may be composed only of the optical functional layer, or may contain other layers in addition to the optical functional layer. Examples of other layers include a support, an alignment layer, and a surface protective layer.
  • you may have layers which have optical functionality, such as a liquid crystal layer, other than the optical functional layer formed from the composition for optical functional layer preparation of this invention.
  • the optical film preferably includes a layer formed by curing a composition containing a liquid crystal compound (hereinafter sometimes referred to as “liquid crystal layer”), and is formed from the composition for producing an optical functional layer of the present invention. It is also preferable to include a liquid crystal layer as a layer.
  • the optical film preferably includes a layer formed by fixing a cholesteric liquid crystal phase, and includes a layer formed by fixing a cholesteric liquid crystal phase as a layer formed from the composition for preparing an optical functional layer of the present invention. Is also preferable.
  • the optical film preferably has a structure in which two liquid crystal layers are laminated, and the two layers are preferably in direct contact with each other.
  • the liquid crystal layer which is a layer formed from the composition for producing an optical functional layer of the present invention, is selected from the group consisting of a polymerizable compound and a polymer as a lower layer (optical functional layer 1) on the surface thereof. It is preferable to have a structure having a liquid crystal layer (layer 2) formed by applying a composition 2 containing an optical functional component containing one or more compounds and a solvent.
  • the solvent of the composition 2 at this time can be selected from the organic solvents exemplified above.
  • the composition 2 may be the composition for producing an optical functional layer of the present invention.
  • a structure in which layers are similarly formed on the surface of the layer 2 is also preferable, and the optical film may be a laminated film of 3 to 10 liquid crystal layers formed in the same manner.
  • the composition for preparing an optical functional layer of the present invention does not require the addition of a fluorine-based surfactant or a silicone-based surfactant, so that it can be used for preparing a laminated film in which a liquid crystal layer is laminated as described above.
  • a fluorine-based surfactant or a silicone-based surfactant can be used for preparing a laminated film in which a liquid crystal layer is laminated as described above.
  • alignment disorder may occur at the interface between the lower layer and the upper layer.
  • the present inventors have found that when using a mixed solvent containing a low surface tension solvent, such alignment disturbance is also suppressed. Although not bound by any theory, it is considered that the low surface tension solvent does not remain on the lower liquid crystal surface as described above, and thus does not affect the liquid crystal interaction between the upper layer and the lower layer.
  • either one of the optical functional layer 1 and the layer 2 is a rod-like liquid crystal. It is also preferred that the layer is formed from a composition containing a compound and the other is a layer formed from a composition containing a discotic liquid crystal compound. Further, either one of the optical functional layer 1 and the layer 2 is a layer formed by curing a composition containing a polymerizable rod-like liquid crystal compound, and the other is a composition containing a polymerizable discotic liquid crystal compound. A layer formed by curing is also preferred.
  • optical film is not particularly limited.
  • examples of the optical film include a retardation film, a reflective film, and a light absorbing film. More specifically, examples include an optical compensation film, a polarizing film, a brightness enhancement film, a heat shielding film, and a projection film used for liquid crystal display devices.
  • the optical film produced using the composition for producing an optical functional layer of the present invention may be a support film for producing a laminated film.
  • the support film includes the lower layer (optical functional layer 1).
  • the support film preferably includes the optical functional layer 1 as an outermost layer or includes only an easily peelable film such as a laminate film outside the optical functional layer 1.
  • the optical functional layer 1 in the support film is preferably a liquid crystal layer.
  • the optical functional layer 1 in the support film is more preferably a layer formed by curing a composition containing a polymerizable discotic liquid crystal compound.
  • the support film may include a support, an alignment layer, and other liquid crystal layers.
  • the support glass or a polymer film can be used.
  • polymer film materials used as the support include cellulose acylate films (for example, cellulose triacetate film (refractive index 1.48), cellulose diacetate film, cellulose acetate butyrate film, cellulose acetate propionate film).
  • Polyolefins such as polyethylene and polypropylene, polyester resin films such as polyethylene terephthalate and polyethylene naphthalate, polyethersulfone films, polyacrylic resin films such as polymethyl methacrylate, polyurethane resin films, polyester films, polycarbonate films, polysulfone films , Polyether film, polymethylpentene film, polyetherketone film, (meth) a Rilnitrile film, polyolefin, polymer having alicyclic structure (norbornene resin (Arton: trade name, manufactured by JSR Corporation, amorphous polyolefin (ZEONEX: trade name, manufactured by ZEON Corporation)), and the like.
  • polyester resin films such as polyethylene terephthalate and polyethylene naphthalate
  • polyethersulfone films polyacrylic resin films such as polymethyl methacrylate, polyurethane resin films, polyester films, polycarbonate films, polysulfone films , Polyether film, polymethylpentene film,
  • the support may be a temporary support that is peeled off after the formation of the optical functional layer and is not included in the optical film.
  • the thickness of the support may be about 5 ⁇ m to 1000 ⁇ m, preferably 10 ⁇ m to 250 ⁇ m, more preferably 15 ⁇ m to 90 ⁇ m.
  • the optical film may include an alignment layer.
  • the alignment layer is used for aligning the molecules of the liquid crystal compound in the layer-forming composition when the layer containing the liquid crystal compound is formed.
  • the alignment layer is used in forming a layer such as an optical functional layer. In the optical film, the alignment layer may or may not be included.
  • the alignment layer can be provided by means such as a rubbing treatment of an organic compound (preferably a polymer), oblique vapor deposition of an inorganic compound such as SiO, or formation of a layer having microgrooves. Furthermore, an alignment layer in which an alignment function is generated by application of an electric field, application of a magnetic field, or light irradiation is also known. Depending on the material of the lower layer such as the support and the optical functional layer, the lower layer can be made to function as an alignment layer by direct alignment treatment (for example, rubbing treatment) without providing the alignment layer.
  • a lower layer support is PET.
  • the lower optical functional layer may act as an alignment layer to align the liquid crystal compound for producing the upper layer.
  • the upper liquid crystal compound can be aligned without providing an alignment layer or without performing a special alignment process (for example, rubbing process).
  • a rubbing-treated alignment layer and a photo-alignment layer used by rubbing the surface as preferred examples will be described.
  • the polymer that can be used for the rubbing treatment oriented layer include, for example, a methacrylate copolymer, a styrene copolymer, a polyolefin, polyvinyl alcohol, and the like described in paragraph No. [0022] of JP-A-8-338913.
  • Examples include modified polyvinyl alcohol, poly (N-methylolacrylamide), polyester, polyimide, vinyl acetate copolymer, carboxymethylcellulose, and polycarbonate.
  • Silane coupling agents can be used as the polymer.
  • Water-soluble polymers eg, poly (N-methylolacrylamide), carboxymethylcellulose, gelatin, polyvinyl alcohol, modified polyvinyl alcohol
  • gelatin, polyvinyl alcohol and modified polyvinyl alcohol are more preferred, and polyvinyl alcohol and modified polyvinyl alcohol are most preferred.
  • the aforementioned composition is applied to the rubbing-treated surface of the alignment layer to align the molecules of the liquid crystal compound. After that, if necessary, the alignment layer polymer and the polyfunctional monomer contained in the optically anisotropic layer are reacted, or the alignment layer polymer is crosslinked using a crosslinking agent, thereby the optical anisotropy described above.
  • a layer can be formed.
  • the film thickness of the alignment layer is preferably in the range of 0.1 to 10 ⁇ m.
  • the surface of the alignment layer, support, or other layer to which the composition for producing an optical functional layer is applied may be rubbed as necessary.
  • the rubbing treatment can be generally performed by rubbing the surface of a film containing a polymer as a main component with paper or cloth in a certain direction.
  • a general method of rubbing is described in, for example, “Liquid Crystal Handbook” (issued by Maruzen, October 30, 2000).
  • the rubbing density (L) is quantified by the following formula (A).
  • Formula (A) L Nl (1 + 2 ⁇ rn / 60v)
  • N is the number of rubbing
  • l is the contact length of the rubbing roller
  • r is the radius of the roller
  • n is the number of rotations (rpm) of the roller
  • v is the stage moving speed (second speed).
  • the rubbing frequency should be increased, the contact length of the rubbing roller should be increased, the radius of the roller should be increased, the rotation speed of the roller should be increased, and the stage moving speed should be decreased, while the rubbing density should be decreased. To do this, you can reverse this.
  • the description in Japanese Patent No. 4052558 can also be referred to as conditions for the rubbing process.
  • the photo-alignment layer formed from the above material is irradiated with linearly polarized light or non-polarized light to produce a photo-alignment layer.
  • linearly polarized light irradiation is an operation for causing a photoreaction in a photo-alignment material.
  • the wavelength of light used varies depending on the photo-alignment material used, and is not particularly limited as long as it is a wavelength necessary for the photoreaction.
  • the peak wavelength of light used for light irradiation is 200 nm to 700 nm, and more preferably ultraviolet light having a peak wavelength of light of 400 nm or less.
  • the light source used for light irradiation is a commonly used light source such as a tungsten lamp, a halogen lamp, a xenon lamp, a xenon flash lamp, a mercury lamp, a mercury xenon lamp, a carbon arc lamp, or various lasers (eg, semiconductor laser, helium). Neon laser, argon ion laser, helium cadmium laser, YAG laser), light emitting diode, cathode ray tube, and the like.
  • a method using a polarizing plate eg, iodine polarizing plate, dichroic dye polarizing plate, wire grid polarizing plate
  • reflection using a prism-based element eg, Glan-Thompson prism
  • a prism-based element eg, Glan-Thompson prism
  • Brewster angle A method using a type polarizer or a method using light emitted from a laser light source having polarization can be employed.
  • a method of irradiating light from the top surface or the back surface to the alignment layer surface perpendicularly or obliquely with respect to the alignment layer is employed.
  • the incident angle of light varies depending on the photo-alignment material, but is, for example, 0 to 90 ° (vertical), preferably 40 to 90.
  • the non-polarized light is irradiated obliquely.
  • the incident angle is 10 to 80 °, preferably 20 to 60, particularly preferably 30 to 50 °.
  • the irradiation time is preferably 1 minute to 60 minutes, more preferably 1 minute to 10 minutes.
  • the optical film of each Example and the comparative example was produced with the layer structure shown in Table 1.
  • the material of each layer is as follows.
  • TD40UL A commercially available cellulose acylate film “TD40UL” (manufactured by FUJIFILM Corporation) was used.
  • TD40UL with alignment layer After passing TD40UL through a dielectric heating roll having a temperature of 60 ° C. and raising the film surface temperature to 40 ° C., an alkali solution having the composition shown below is applied to one side of the film using a bar coater. It was transported for 10 seconds under a steam far-infrared heater manufactured by Noritake Company Limited, which was applied at 2 and heated to 110 ° C.
  • Alignment Layer Formation of Alignment Layer An alignment layer coating solution having the following composition was continuously applied to the long cellulose acetate film saponified as described above with a # 14 wire bar. Drying was performed with warm air of 60 ° C. for 60 seconds and further with warm air of 100 ° C. for 120 seconds. The obtained coating film was continuously rubbed to prepare an alignment layer. At this time, the longitudinal direction of the long film and the transport direction were parallel, and the rotation axis of the rubbing roller was 45 ° clockwise relative to the longitudinal direction of the film.
  • composition of alignment layer coating solution ⁇
  • a coating liquid A1 containing a discotic liquid crystal compound having the following composition was continuously applied with a # 3.6 wire bar.
  • the conveyance speed (V) of the film was 20 m / min.
  • UV irradiation was performed at 80 ° C. to fix the orientation of the liquid crystal compound and form a ⁇ / 4 layer.
  • the UV irradiation amount was 300 mJ / cm 2 .
  • the alignment aids 1 and 2 are each a mixture of two types of compounds having different methyl group substitution positions on the trimethyl-substituted benzene ring (mixing ratio of the two types of compounds 50:50 (mass ratio)).
  • a coating liquid (any one of B1 to B10, B12, B13, B15 to B18) is applied to the surface of the alignment layer formed on the surface of TD40UL or the surface of the alignment layer formed on the surface of ⁇ / 4 layer of TD40UL + ⁇ / 4.
  • the film thickness was adjusted to 3 ⁇ m and applied continuously.
  • the solvent was dried at 70 ° C. for 2 minutes, and after evaporating the solvent, heat aging was performed at 115 ° C. for 3 minutes to obtain a uniform alignment state.
  • the coating film was kept at 45 ° C., and irradiated with ultraviolet rays using a high-pressure mercury lamp in a nitrogen atmosphere to form a cholesteric liquid crystal layer.
  • the UV irradiation amount was 300 mJ / cm 2 .
  • Discotic liquid crystal compound (Compound 101) 80 parts by mass Discotic liquid crystal compound (Compound 102) 20 parts by mass Polymerizable monomer 1 10 parts by mass Surfactant 1 0.3 part by mass Polymerization initiator 1 3 parts by mass Chiral agent 1 8 parts by weight methyl ethyl ketone 290 parts by weight cyclohexanone 50 parts by weight ⁇
  • Discotic liquid crystal compound (Compound 101) 80 parts by mass Discotic liquid crystal compound (Compound 102) 20 parts by mass Polymerizable monomer 1 10 parts by mass Surfactant 2 (Shin-Etsu Chemical Co., Ltd .; X-22-2445) 0.2 parts by mass Polymerization initiator 1 3 parts by weight chiral agent 1 3.8 parts by weight methyl ethyl ketone 290 parts by weight cyclohexanone 50 parts by weight ⁇ ⁇
  • Discotic liquid crystal compound (Compound 101) 80 parts by mass Discotic liquid crystal compound (Compound 102) 20 parts by mass Polymerizable monomer 1 10 parts by mass Polymerization initiator 1 3 parts by mass chiral agent 1 3.8 parts by mass Methyl ethyl ketone 220 parts by mass Cyclohexanone 50 Part by mass Isopropyl acetate 70 parts by mass ⁇
  • B12 ⁇ Discotic liquid crystal compound (Compound 101) 80 parts by mass Discotic liquid crystal compound (Compound 102) 20 parts by mass Polymerizable monomer 1 10 parts by mass Polymerization initiator 1 3 parts by mass Chiral agent 1 3.8 parts by mass Cellulose acetate butyrate manufactured by EASTMAN (CAB-171-15) 0.5 parts by mass Methyl ethyl ketone 152 parts by mass Cyclohexanone 34 parts by mass tert-butanol 48 parts by mass ⁇ ⁇
  • Discotic liquid crystal compound (Compound 101) 80 parts by weight Discotic liquid crystal compound (Compound 102) 20 parts by weight Polymerizable monomer 1 10 parts by weight Polymerization initiator 1 3 parts by weight chiral agent 1 3.8 parts by weight Dihydroterpineol 10 parts by weight methyl ethyl ketone 189 parts by weight cyclohexanone 43 parts by weight tert-butanol 60 parts by weight ⁇
  • HC1 A hard coat coating solution having the following composition was applied to the surface of the TD40UL with a bar coater, dried, and irradiated with ultraviolet rays to form a 10 ⁇ m thick hard coat layer.
  • the liquid was applied with a wire bar coater # 1.6, the coating film was dried at 60 ° C. for 0.5 minutes, and then using a high-pressure mercury lamp, an oxygen concentration of about 0.1% under a nitrogen purge, an illuminance of 40 mW / cm 2 , An ultraviolet ray with an irradiation amount of 120 mJ / cm 2 was irradiated at 30 ° C.
  • the prepared hard coat coating solution was applied with a wire bar coater # 1.6, and the coating film was dried at 60 ° C. for 0.5 minutes, and then using a high pressure mercury lamp, the oxygen concentration was about 0.1% under nitrogen purge and the illuminance was 40 mW. / Cm 2 and an ultraviolet ray with an irradiation amount of 120 mJ / cm 2 were irradiated at 30 ° C.
  • the liquid was applied with a wire bar coater # 1.6, the coating film was dried at 60 ° C. for 0.5 minutes, and then using a high-pressure mercury lamp, an oxygen concentration of about 0.1% under a nitrogen purge, an illuminance of 40 mW / cm 2 ,
  • the intermediate layer was cured by irradiating UV rays with an irradiation amount of 120 mJ / cm 2 at 30 ° C. for 30 seconds.
  • the film thickness of the obtained intermediate layer was 0.6 ⁇ m.
  • HC3 A hard coat coating solution having the following composition is applied to the surface of the hard coat layer (HC1, HC2) prepared above by gravure coating, heated at 120 ° C. for 5 minutes to remove the solvent, and then irradiated with ultraviolet light using a high pressure mercury lamp. Irradiate 350 mJ / cm 2 , A hard coat layer having a thickness of 4 ⁇ m was formed.
  • ⁇ ⁇ 80% urethane acrylate solution (Dainippon Ink & Chemicals: Unidic-17806) 80 parts by weight polyester acrylate (Toa Gosei: Aronix-M8060) 20 parts by weight photopolymerization initiator (Irgacure 907 (manufactured by BASF) 2 parts by weight toluene 48 parts by weight ⁇ ⁇
  • the coating solution was applied with a # 3.2 wire bar, which was attached to a metal frame and heated in a constant temperature bath at 100 ° C. for 2 minutes to align the rod-like liquid crystal compound.
  • the UV irradiation amount was 300 mJ / cm 2 .
  • Rod-like liquid crystal compound 201 83 parts by weight Rod-like liquid crystal compound 202 15 parts by weight Rod-like liquid crystal compound 203 2 parts by weight polyfunctional monomer A-TMMT (manufactured by Shin-Nakamura Chemical Co., Ltd. 1 part by weight polymerization initiator IRGACURE 819 (manufactured by BASF) 4 Part by mass Surfactant 2 0.05 part by mass Surfactant 3 0.01 part by mass Chiral agent LC756 (manufactured by BASF) 5.1 parts by mass Toluene 165 parts by mass Cyclohexanone 10 parts by mass ⁇ ⁇
  • Viscosity measurement of coating solution For the coating solutions for preparing B1 to B10, B12, B13, B15 to B18 and HC1, HC2, and HC4 to 6 prepared above, use Vm-100 (vibrating viscometer) manufactured by Seconic. The viscosity was measured. The measured value was 31 mPa ⁇ s for the coating solution for B12 and 28 mPa ⁇ s for the coating solution for B13. All other coating solutions were in the range of 1.5 to 10 mPa ⁇ s.
  • the produced optical film was evaluated according to the following criteria.
  • the results are shown in Table 1.
  • ⁇ Repel> The number of repellency of the layer formed using each composition in the film of each Example and Comparative Example 15 cm ⁇ 20 cm was counted. Here, the area
  • the superiority or inferiority of the liquid crystal alignment was determined according to the following criteria depending on the presence or absence of alignment defects when the film was observed with a deflection microscope.
  • the evaluation is preferably any one of evaluation criteria A to C. If it is evaluation standard A or B, it is excellent in production efficiency and can be used suitably, and it is more preferable that it is evaluation standard A.

Abstract

L'invention fournit une composition pour fabriquer une couche dotée de fonctions optiques qui présente une viscosité de 0,3 à 30,0mPa.s, qui contient un solvant, et un composant doté de fonctions optiques contenant à son tour au moins un composé choisi dans un groupe constitué d'un composé polymérisable et d'un polymère, dans laquelle ledit solvant consiste en un solvant mixte à base d'un solvant à faible tension superficielle dont la tension superficielle est comprise entre 10 et 22mN/m, et d'un solvant à tension superficielle de référence dont la tension superficielle est supérieure à 22mN/m, et dans laquelle la teneur en solvant à faible tension superficielle pour la quantité totale de solvant est comprise entre 5 et 40% en masse. L'invention fournit également un procédé de fabrication de film optique qui met en œuvre ladite composition pour fabriquer une couche dotée de fonctions optiques, et un film optique fabriqué à l'aide de ladite composition pour fabriquer une couche dotée de fonctions optiques. La composition pour fabriquer une couche dotée de fonctions optiques de l'invention présente peu de risques d'apparition d'œil de poisson y compris en cas de faible viscosité dans une membrane formée par application, et présente également peu de risques d'apparition d'œil de poisson lors de la formation d'une couche supérieure.
PCT/JP2015/069337 2014-07-04 2015-07-03 Composition pour fabriquer une couche dotée de fonctions optiques, procédé de fabrication de film optique contenant une couche dotée de fonctions optiques, et film optique WO2016002946A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017179120A (ja) * 2016-03-30 2017-10-05 株式会社ダイセル 熱硬化性化合物
WO2023074732A1 (fr) * 2021-10-27 2023-05-04 富士フイルム株式会社 Film optique et procédé de production de film optique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111093843B (zh) * 2017-09-26 2023-01-24 富士胶片株式会社 薄膜的制造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001310912A (ja) * 2000-04-28 2001-11-06 Jsr Corp 帯電防止用硬化性組成物、硬化膜及び帯電防止性反射防止積層体
JP2005227425A (ja) * 2004-02-12 2005-08-25 Fuji Photo Film Co Ltd 位相差板、ならびにそれを用いたλ／４板及び楕円偏光板
JP2005284000A (ja) * 2004-03-30 2005-10-13 Jsr Corp 反射防止膜用組成物及び反射防止膜
JP2005301235A (ja) * 2004-03-19 2005-10-27 Fuji Photo Film Co Ltd 位相差板および画像表示装置
JP2007093864A (ja) * 2005-09-28 2007-04-12 Fujifilm Corp 位相差板、偏光板および液晶表示装置
JP2010204221A (ja) * 2009-02-27 2010-09-16 Dainippon Printing Co Ltd 光学素子及び液晶表示装置
JP2012177087A (ja) * 2011-01-31 2012-09-13 Jnc Corp 重合性液晶組成物および光学異方体
WO2014054769A1 (fr) * 2012-10-04 2014-04-10 富士フイルム株式会社 Plaque polarisante circulaire et procédé de production de ladite plaque, corps stratifié optique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2841611B2 (ja) 1990-01-11 1998-12-24 ダイキン工業株式会社 フッ素系界面活性剤
JP2005272560A (ja) 2004-03-24 2005-10-06 Dainippon Ink & Chem Inc 重合性液晶組成物、及びこれの重合物
JP5693027B2 (ja) 2010-03-16 2015-04-01 富士フイルム株式会社 積層膜の製造方法、積層膜、及び遮熱部材
WO2012020642A1 (fr) * 2010-08-11 2012-02-16 Jnc株式会社 Composition à cristaux liquides et élément d'affichage à cristaux liquides
JP5673047B2 (ja) 2010-12-07 2015-02-18 Jnc株式会社 液晶化合物、液晶組成物および液晶表示素子
JP6024950B2 (ja) * 2012-07-03 2016-11-16 Dic株式会社 ネマチック液晶組成物及びこれを用いた液晶表示素子
US10106740B2 (en) * 2012-12-12 2018-10-23 Dic Corporation Nematic liquid crystal composition and liquid crystal display element using same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001310912A (ja) * 2000-04-28 2001-11-06 Jsr Corp 帯電防止用硬化性組成物、硬化膜及び帯電防止性反射防止積層体
JP2005227425A (ja) * 2004-02-12 2005-08-25 Fuji Photo Film Co Ltd 位相差板、ならびにそれを用いたλ／４板及び楕円偏光板
JP2005301235A (ja) * 2004-03-19 2005-10-27 Fuji Photo Film Co Ltd 位相差板および画像表示装置
JP2005284000A (ja) * 2004-03-30 2005-10-13 Jsr Corp 反射防止膜用組成物及び反射防止膜
JP2007093864A (ja) * 2005-09-28 2007-04-12 Fujifilm Corp 位相差板、偏光板および液晶表示装置
JP2010204221A (ja) * 2009-02-27 2010-09-16 Dainippon Printing Co Ltd 光学素子及び液晶表示装置
JP2012177087A (ja) * 2011-01-31 2012-09-13 Jnc Corp 重合性液晶組成物および光学異方体
WO2014054769A1 (fr) * 2012-10-04 2014-04-10 富士フイルム株式会社 Plaque polarisante circulaire et procédé de production de ladite plaque, corps stratifié optique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017179120A (ja) * 2016-03-30 2017-10-05 株式会社ダイセル 熱硬化性化合物
WO2023074732A1 (fr) * 2021-10-27 2023-05-04 富士フイルム株式会社 Film optique et procédé de production de film optique

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