WO2006080393A1 - 発光素子用積層体および発光素子 - Google Patents
発光素子用積層体および発光素子 Download PDFInfo
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- WO2006080393A1 WO2006080393A1 PCT/JP2006/301219 JP2006301219W WO2006080393A1 WO 2006080393 A1 WO2006080393 A1 WO 2006080393A1 JP 2006301219 W JP2006301219 W JP 2006301219W WO 2006080393 A1 WO2006080393 A1 WO 2006080393A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
- H10K50/8445—Encapsulations multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0441—Apparatus for sealing, encapsulating, glassing, decapsulating or the like
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23—Sheet including cover or casing
- Y10T428/239—Complete cover or casing
Definitions
- the present invention relates to a laminate for a light-emitting element and a light-emitting element, and more specifically, a substrate for a light-emitting element such as an organic electroluminescent element (organic EL element) and Z or a sealing container. And the like.
- An organic EL element useful as a light emitting element is a light emitting element having a basic structure of a laminated structure in which an organic light emitting layer is disposed between a cathode and an anode.
- Figure 3 shows the organic EL device.
- the organic EL element includes a light emitting element body 10 disposed on the surface of the substrate 11 and a sealing container 12 for protecting the entire light emitting element body 10 from external forces.
- the light emitting element body 10 has a laminated structure in which an organic light emitting layer 5 made of an organic compound having an electroluminescence function is disposed between a cathode 4 and an anode 6.
- the organic light-emitting layer 5 is usually composed of a plurality of layers, for example, a light-emitting compound-containing layer containing an organic light-emitting compound, and a transport layer and hole injection on one surface of the light-emitting compound layer toward the anode 6
- a layer may be laminated, and a transport layer and an electron injection layer may be laminated on the other surface of the light emitting compound-containing layer and on the surface facing the cathode 4.
- the substrate 11 is made of, for example, glass, ceramics, or plastic.
- the sealing container 12 is made of metal, for example. A large number of such organic EL elements are arranged on the same substrate 11 to constitute an organic EL panel. In the manufacture of organic EL panels, instead of arranging the sealing containers continuously, a method of sealing the organic EL elements with a sealing plate is used.
- An organic EL device is a very effective light emitting device, but has a drawback that it easily deteriorates due to oxygen, moisture, and the like because the organic light emitting layer contains a relatively unstable organic compound. For this reason, it is necessary to protect the organic light emitting layer from the oxygen, moisture, and the like with a substrate and a sealing container. Therefore, normally, as shown in FIG. 3, a drug placement portion 8 is provided in the sealed space, and an oxygen and oxygen scavenger is stored in the drug placement portion 8 together with a dehumidifying agent. Removes causative substances that degrade the organic light-emitting layer, such as moisture.
- Patent Document 1 discloses that a protective layer of a fluoropolymer or an oxide insulator is formed on the outer surface of a laminate in which an organic light emitting layer is disposed between a cathode and an anode.
- a protective layer of a fluoropolymer or an oxide insulator is formed on the outer surface of a laminate in which an organic light emitting layer is disposed between a cathode and an anode.
- Patent Document 2 describes an organic EL element device in which the side surface of an organic EL element is sealed with an epoxy resin-based adhesive containing a deoxidizing agent.
- Patent Document 3 describes the application of ultraviolet curable resin as an adhesive between a plastic organic EL panel substrate and a laminate.
- Patent Document 1 Japanese Patent Laid-Open No. 10-275682 US Patent US5990615A
- Patent Document 2 Japanese Patent Laid-Open No. 2002-175877 US Patent US6686063B
- Patent Document 3 Japanese Patent Laid-Open No. 2004-47381 International Publication WO2004Z881
- the present invention solves such problems of the prior art, and can be used as a substrate for a light emitting element such as an organic EL element and a protective material for a light emitting element body such as Z or a sealing container.
- An object of the present invention is to provide a laminate for a light emitting element having both a gas barrier function and a deoxygenation function, and to provide a light emitting element using the laminate as a substrate and Z or a sealing container. .
- a conjugated diene polymer cyclized product obtained by subjecting a conjugated diene polymer to a cyclization reaction, wherein the number of unsaturated bonds in the conjugated diene polymer corresponds to the number of unsaturated bonds present in the cyclized product.
- a laminate for a light-emitting element comprising: an oxygen absorption layer containing a conjugated cyclized polymer having an unsaturated bond reduction ratio indicating the number of saturated bonds of 10% or more; and a gas nolia layer.
- the conjugated diene polymer cyclized product is a laminate for a light emitting device according to the above (1), which has an oxygen absorption amount of 5 mLZg or more,
- the oxygen absorption layer is a laminate for a light emitting device according to the above (1), wherein the oxygen absorption rate from the surface thereof is 1 mLZm 2 Z days or more,
- the conjugated gen polymer cyclized product is a laminate for a light emitting device according to the above (1), which is a modified conjugated gen polymer cyclized product,
- the gas barrier layer is a laminate for a light emitting device according to the above (1), which has an oxygen permeability coefficient of 5 mL / m 2 or less,
- the conjugation polymer is a laminate of a light-emitting device according to (1), wherein the conjugation monomer is a copolymer of a conjugation monomer and another monomer,
- the laminate for a light emitting device of the present invention has both a gas barrier function and a deoxygenating function.
- a substrate for a light emitting device such as an organic EL device and a light emitting device such as Z or a sealing container It can be used as a material for mechanical protection of the main body.
- the laminate for a light emitting device of the present invention absorbs and removes oxygen present in the sealed container, prevents the entry of gas, particularly oxygen, into the sealed container, and has a long life and little deterioration. It can also be used as a protective material.
- a light-emitting element using the laminate for a light-emitting element as a substrate and Z or a sealing container is a light-emitting element that does not deteriorate for a long period of time. Light can be extracted from both the side and the sealed container side.
- a light-emitting panel using this light-emitting element can be a long-life light-emitting panel that is easy to manufacture, is thin, and has excellent flexibility.
- FIG. 1 is an explanatory diagram of an example of a light-emitting element provided with the laminate for a light-emitting element of the present invention.
- FIG. 2 is an explanatory view of an example of a light emitting device provided with the laminate for light emitting device of the present invention.
- FIG. 3 is an explanatory diagram of a conventional organic EL device.
- FIG. 4 is an illustration of a laminated structure of a laminate for a light emitting device of the present invention.
- FIG. 5 is a view showing an example of the laminated structure of the laminate for light emitting device of the present invention.
- FIG. 6 is a view showing an example of the laminated structure of the laminate for light emitting device of the present invention.
- FIG. 7 is a view showing an example of the laminated structure of the laminate for light emitting device of the present invention.
- FIG. 8 is a view showing an example of the laminated structure of the laminate for light emitting device of the present invention.
- FIG. 9 is a view showing an example of the laminated structure of the laminate for light emitting device of the present invention.
- FIG. 10 is a view showing an example of the laminated structure of the laminate for light emitting device of the present invention.
- the laminate for a light emitting device of the present invention is formed by laminating at least an oxygen absorption layer and a gas barrier layer.
- the basic laminated structure of the light emitting element laminate 14 has, for example, a structure in which a gas barrier layer 1, a protective resin layer 2, and an oxygen absorbing layer 3 are laminated in this order as shown in FIG.
- a laminated structure in which a protective resin layer 2, a gas barrier layer 1, and an oxygen absorbing layer 3 are laminated in this order can be mentioned.
- the oxygen absorption layer 3 is located on the inner side of the gas nolia layer 1, for example, as shown in FIG. It can be arranged so as to be in the existing space, that is, the sealed space side.
- the light-emitting element laminate 14 There are many other lamination methods for the light-emitting element laminate 14. For example, as shown in Fig. 6, a protective resin layer 2, a gas barrier layer 1, a protective resin layer 2, and an oxygen absorption layer 3 are stacked in this order, or a gas noria layer 1, as shown in Fig. 7, is protected.
- gas nolia layer 1 may be on both sides of oxygen absorbing layer 3 as shown in FIG. Furthermore, as shown in FIG. 9, a laminated structure of a gas barrier layer 1 and an oxygen absorbing layer 3 ′ having the function of a protective resin layer, or a gas barrier layer having a function of a protective resin layer as shown in FIG. A laminated structure of 1 ′ and the oxygen absorbing layer 3 can also be used.
- the laminate for a light emitting device of the present invention includes at least two layers of a gas barrier layer and an oxygen absorption layer, the gas barrier layer prevents entry of oxygen having an external force, and the oxygen absorption layer exists in the sealed space. Absorbed oxygen and a small amount of oxygen that has permeated through the Z or gas noble layer. It suffices to have a layered structure that can be used. Furthermore, it is preferable that the laminate for a light emitting device of the present invention has a protective resin layer having a function of maintaining mechanical strength (for example, the structure shown in FIG. 4 or FIG. 5). This protective resin layer may be an independent protective resin layer, or may be a gas barrier layer or an oxygen absorbing layer having the above functions.
- the laminate for a light emitting device of the present invention may have, for example, a plurality of protective resin layers, oxygen absorption layers, and gas nolia layers (for example, FIG. (The structure shown in Figure 7 or Figure 8).
- the oxygen absorbing layer is also a protective resin layer as long as the oxygen absorbing layer has sufficient mechanical strength and also functions as a protective resin layer. It may be regarded as a laminated structure having a two-layer force of a gas nolia single layer and an oxygen absorbing layer (for example, the structure shown in FIG. 9).
- the laminate for a light emitting device of the present invention may have a two-layer force of one gas barrier layer and one oxygen absorbing layer as long as one gas barrier layer has a sufficient thickness and functions as a protective resin layer (for example, FIG. Structure shown in 10).
- the light-emitting element laminate of the present invention desirably has a light transmittance of 85% or more in a wavelength region of 400 nm to 650 nm.
- the light-emitting element provided with the light-emitting element laminate of the present invention can also extract light from both side forces of the light-emitting element.
- the light transmittance of the light-emitting element laminate through which light passes is high!
- the light transmittance of the laminate for a light emitting element is preferably 85% or more, more preferably 90% or more, and further preferably 95% or more.
- the emission wavelength region of organic EL devices is 400 ⁇ ! Since it is ⁇ 650 nm, it is desired that the light transmittance is high at all wavelengths in this emission wavelength region.
- the laminate for a light-emitting element of the present invention is used for an organic EL element having an uneven emission wavelength region, the light transmittance of the laminate for the light-emitting element satisfies the above numerical range in the emission wavelength region of the organic EL element. It only has to be. In some cases, the above requirement may be satisfied as an average of the entire wavelength region.
- the light transmittance at a wavelength of 400 nm to 650 nm is measured with a commercially available turbidimeter in accordance with JIS K7361-1.
- the conjugated conjugated polymer cyclized product plays an important role, and will be described first.
- the conjugated diene polymer cyclized product used in the present invention can be obtained by cyclization reaction of a conjugated diene polymer in the presence of an acid catalyst. It has a ring structure derived from a monomer unit.
- Conjugated diene polymers include, for example, homopolymers of conjugated gen monomers, copolymers of different types of conjugated gen monomers, or other monomers copolymerizable with conjugated gen monomers. It is a copolymer with a monomer.
- the conjugation monomer that can be used is not particularly limited, and examples thereof include 1,3-butadiene, isoprene, 2,3-dimethyleno-1,3-butadiene, 2-phenol-1,3-butadiene, 1 , 3-pentagen, 2-methinole-1,3-pentagen, 1,3-hexagen, 4,5-jetinole-1,3-octagen, and 3-butyl-1,3-octagen. These monomers may be used alone or in combination of two or more. Of these, isoprene is preferred, with 1,3-butadiene and isoprene being preferred! /.
- Other monomers copolymerizable with the conjugation monomer are not particularly limited. Specific examples include styrene, 0-methyl styrene, p-methyl styrene, m-methyl styrene, 2, 4-dimethyl styrene, ethyl styrene, pt-butynole styrene, ⁇ -methino styrene, ⁇ -methyl ⁇ .
- -Aromatic butyl monomers such as methyl styrene, 0-chloro styrene, m-chloro styrene, p-chloro styrene, p- bromo styrene, 2, 4-dibu-mouthed styrene, and urnaphthalene; ethylene, propylene, and 1 -Chain olefin monomers such as butene; Cyclopentene, and cyclic olefin monomers such as 2-norbornene; 1,5-hexagen, 1,6-hexabutadiene, 1,7-octadiene, dicyclopenta Gen, and non-conjugated gen monomers such as 5-ethylidene-2-norbornene; (meth) acrylates such as methyl (meth) acrylate and ethyl (meth) acrylate Le ester; (meth) acryl
- the content of the conjugation monomer unit in the conjugation polymer is a force appropriately selected within a range not impairing the effects of the present invention. Usually, 40 mol% or more, preferably 60 mol% or more, more preferably Is more than 80 mol%. If the content of conjugation monomer units is too small, it will be difficult to increase the rate of reduction of unsaturated bonds, and oxygen absorption tends to be inferior.
- Specific examples of conjugation polymers include natural rubber (NR).
- Styrene-butadiene rubber S BR
- polyisoprene rubber IR
- polybutadiene rubber BR
- isoprene-isobutylene copolymer rubber IIR
- ethylene-propylene-gen copolymer rubber butadiene-isoprene copolymer rubber (BIR)
- BIR butadiene-isoprene copolymer rubber
- the conjugation polymer may be polymerized by a conventional method.
- an appropriate catalyst such as a Ziegler polymerization catalyst, an alkyllithium polymerization catalyst, or a radical polymerization catalyst containing titanium or the like as a catalyst component is used. And is carried out by suspension polymerization, solution polymerization or emulsion polymerization.
- the conjugated diene polymer cyclized product used in the present invention is obtained by subjecting the conjugated diene polymer to a cyclization reaction in the presence of an acid catalyst.
- an acid catalyst used in the cyclization reaction conventionally known acid catalysts can be used.
- sulfuric acid for example, sulfuric acid; fluoromethanesulfonic acid, difluoromethanesulfonic acid, p-toluenesulfonic acid, xylenesulfonic acid, having 2 to 18 carbon atoms.
- Organic sulfonic acid compounds such as alkylbenzene sulfonic acids having an alkyl group, their anhydrides or alkyl esters; boron trifluoride, trisalt-boron, tin tetrachloride, titanium tetrachloride, salt And metal halides such as aluminum, jetyl aluminum monochloride, ethyl ammonium dichloride, aluminum bromide, pentachloride-antimony, tungsten hexachloride, and iron chloride.
- These acid catalysts may be used alone or in combination of two or more.
- P-toluenesulfonic acid and its anhydride which are preferably organic sulfonic acid compounds, can be used more preferably.
- the amount of the acid catalyst used is usually 0.05 to 10 parts by mass, preferably 0.1 to 5 parts by mass, more preferably 0.3 to 2 parts by mass, per 100 parts by mass of the conjugate polymer. is there.
- the cyclization reaction is usually performed by dissolving a conjugated diene polymer in a hydrocarbon solvent and reacting in the presence of an acid catalyst.
- the hydrocarbon solvent is not particularly limited as long as it does not inhibit the cyclization reaction. Specific examples include aromatic hydrocarbons such as benzene, toluene, xylene, and ethylbenzene; aliphatic hydrocarbons such as n -pentane, n- hexane, n-heptane, and n-octane; And alicyclic hydrocarbons such as pentane and cyclohexane.
- the polymerization solvent can be used as it is as a solvent for the cyclization reaction, and in this case, the polymerization reaction solution after completion of the polymerization reaction is used.
- Add acid catalyst to perform cyclization reaction I can.
- the amount of the hydrocarbon solvent used is such that the solid content concentration of the conjugated diene polymer is usually 5 to 60% by mass, preferably 20 to 40% by mass.
- the cyclization reaction can be carried out under pressure, reduced pressure, or atmospheric pressure, but it is desirable to carry out under atmospheric pressure from the viewpoint of ease of operation. When carried out in an argon atmosphere, side reactions caused by moisture can be suppressed.
- the reaction temperature is usually 50 to 150 ° C, preferably 70 to 110 ° C, and the reaction time is usually 0. 5-10 hours, preferably 2-7 hours.
- the acid catalyst is deactivated and the acid catalyst residue is removed by a conventional method.
- an antioxidant is added, and a hydrocarbon solvent or unreacted polar group-containing vinyl chloride is added. The compound can be removed to obtain a solid conjugate conjugated polymer cyclized product.
- the conjugated gen polymer cyclized product used in the present invention is a modified conjugated gen polymer cyclized product (hereinafter abbreviated as a modified conjugated gen polymer cyclized product) as long as the object of the present invention is not impaired. Is preferred over the unmodified conjugate cyclized polymer.
- the conjugated conjugated diene polymer cyclized products the polar group-containing conjugated gen polymer cyclized product modified so as to contain a polar group is preferable.
- the polar group is not particularly limited, and examples thereof include an acid anhydride group, carboxyl group, hydroxyl group, thiol group, ester group, epoxy group, amino group, amide group, cyano group, silyl group, and halogen. Polar groups can be mentioned.
- Examples of the acid anhydride group or carboxyl group include maleic anhydride, itaconic anhydride, aconitic anhydride, norbornene dicarboxylic anhydride, acrylic acid, methacrylic acid, and maleic acid compounds such as maleic acid.
- Examples of such a group include a structure having a structure in which a conjugated diene polymer cyclized product is added. Among them, a group having a structure in which maleic anhydride is added to a cyclized polyisoprene is preferable in terms of reactivity and economy.
- Examples of the hydroxyl group include 2-hydroxyethyl (meth) acrylate (2-hydroxyethyl (meth) acrylate is 2-hydroxyethyl acrylate and / or 2-hydroxyethyl methacrylate).
- (meth) acryl " means a compound or substituent of "acryl ." and / or “methacryl !), (meth )acrylic Acids Hydroxyalkyl esters of unsaturated acids such as 2-hydroxypropyl; N-methylol (meth) acrylamide, and unsaturated acids with a hydroxyl group such as N- (2-hydroxyethyl) (meth) acrylamide Amides; Polyalkylene glycol monoesters of unsaturated acids such as polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, and poly (ethylene glycol-propylene glycol) mono (meth) acrylate; Examples include groups having a structure in which polyhydric alcohol monoesters of unsaturated acids such as glycerol mono (meth) acrylate are added to cyclized conjugation polymers.
- hydroxyalkyl esters of unsaturated acids Is especially preferred 2-hydroxyethyl acrylate Group of 2-hydroxyethyl methacrylate, 2-hydroxypropyl E chill is added to the conjugated diene polymer cyclized product structure is preferred.
- Examples of vinyl compounds containing other polar groups include methyl (meth) atrelate, ethyl (meth) acrylate, butyl (meth) acrylate, glycidyl (meth) acrylate, dimethylaminoethyl. Examples include (meth) acrylate, dimethylaminopropyl (meth) acrylate, (meth) acrylamide, and (meth) acrylonitrile.
- the content of the polar group in the conjugated conjugated polymer cyclized product, particularly the polar group-containing conjugated conjugated polymer cyclized product is not particularly limited, but is usually 0. 1 ⁇ 200 ⁇ Jimole, girls or 1 ⁇ : Monore, J girls or 5 ⁇ 50 ⁇ . If this content is too low or too high, the oxygen absorption function tends to be poor.
- the content of the polar group is determined based on 1 mol of the molecular weight corresponding to the molecular weight of the polar group bonded to the molecule of the modified conjugate cyclized polymer.
- the method for producing the modified conjugated gen polymer cyclized product includes (1) a method in which a conjugated gen polymer cyclized product obtained by the above method is subjected to an addition reaction with a polar group-containing vinyl compound, and (2) a polar group.
- a method obtained by cyclization reaction (4) a method in which a polar group-containing beryl complex is further added to the product obtained by the method (2) or (3), and the like.
- the method of (1) is preferred from the viewpoint of more easily adjusting the unsaturated bond reduction rate! /.
- a polar group-containing compound As a polar group-containing compound, a polar group is introduced into a conjugated cyclized polymer.
- an acid anhydride group force propyl group, hydroxyl group, thiol group, ester group, epoxy group, amino group, amide group, cyano group, silyl group, And vinyl compounds having a polar group such as halogen are preferred.
- Examples of vinyl compounds having an acid anhydride group or a carboxyl group include maleic anhydride, itaconic anhydride, aconitic anhydride, norbornene dicarboxylic acid anhydride, acrylic acid, methacrylic acid, and maleic acid.
- Examples thereof include maleic anhydride, and maleic anhydride can be preferably used from the viewpoint of reactivity and economy.
- the vinyl compound containing a hydroxyl group for example, hydroxyalkyl esters of unsaturated acids are preferred. Particularly, 2-hydroxyethyl acrylate and 2-hydroxyethyl methacrylate are preferred! /, Vinyl compounds. It is mentioned as a thing.
- the method for introducing a polar group derived from a polar group-containing bully compound by adding a polar group-containing vinyl compound to the conjugated conjugated polymer cyclized product is not particularly limited.
- a known reaction called reaction or graft polymerization reaction may be followed.
- This addition reaction is carried out by subjecting the conjugated cyclized polymer and the polar group-containing vinyl compound to a catalytic reaction in the presence of a radical generator, if necessary.
- the radical generator include peroxides such as di-tert-butyl peroxide, dicumyl peroxide, and benzoyl peroxide; azo-tolyls such as azobisisobutyor-tolyl; Can be mentioned.
- the addition reaction may be performed in a solid phase state or in a solution state. However, it is preferable to perform the addition reaction in a solution state in view of easy reaction control.
- the reaction solvent to be used include those similar to the inert solvent in the cyclization reaction as described above.
- the amount of the polar group-containing vinyl compound used varies depending on the reaction conditions, but is appropriately selected so that the content of the introduced polar group is within the above-mentioned range.
- the reaction for introducing the polar group can be carried out under pressure, reduced pressure, or atmospheric pressure. However, it is desirable to carry out the reaction under atmospheric pressure from the viewpoint of ease of operation. In particular, when it is carried out in an atmosphere of dry nitrogen or dry argon, side reactions caused by moisture can be suppressed.
- the reaction temperature and reaction time should be in accordance with conventional methods. 0-250. C, preferably 60-200. C, and the reaction time is usually 0.5 to 5 hours, preferably 1 to 3 hours.
- the cyclized conjugation polymer is present at least in the linear unsaturated bond present in the linear part of the conjugated diene polymer cyclized product and in the cyclized part. It has two types of unsaturated bonds and a cyclic unsaturated bond. Conjugated polymer cyclized products are considered that the cyclic unsaturated bond portion contributes greatly to oxygen absorption, and the linear unsaturated bond portion hardly contributes to oxygen absorption. Therefore, the oxygen absorption function can be exhibited by the presence of a cyclic unsaturated bond in the cyclized conjugate polymer obtained by subjecting the conjugated polymer to a cyclization reaction.
- the unsaturation rate of the unsaturated bond indicating the ratio of the number of unsaturated bonds present in the conjugated product cyclized product after the cyclization reaction with respect to the number of unsaturated bonds in the conjugation polymer before the cyclization reaction (simply simply Conjugated polymer cyclized product having a force of SlO% or more can be used as a material for the oxygen absorbing layer of the laminate for a light emitting device of the present invention.
- the unsaturated bond reduction rate of the conjugated-gen polymer cyclized product is preferably 40 to 75%, more preferably 55 to 70%. If the unsaturated bond reduction rate is too low, oxygen absorption tends to be low.
- Conjugated polymer cyclized products have an unsaturated bond reduction rate that is less than or equal to the upper limit of the above preferred range, thereby preventing the conjugated gen polymer cyclized products from becoming brittle, facilitating production, Suppresses the progress, improves transparency and can be used for many purposes.
- the unsaturated bond reduction rate exceeds 50%, adhesiveness appears, and this property can be utilized.
- the conjugated cyclized polymer may be a mixture of different types of unsaturated bond reduction rates. For example, an unsaturated bond reduction rate of about 10% and an unsaturated bond reduction rate of about 60% may be mixed.
- the unsaturated bond reduction rate is an index that represents the degree to which the unsaturated bond has been reduced by the cyclization reaction at the conjugation monomer unit site in the conjugation polymer, and is determined as follows. be able to. That is, by proton NMR analysis, the ratio of the peak area of the proton directly bonded to the double bond to the peak area of all the protons in the conjugation monomer unit portion in the conjugation polymer is calculated before and after the cyclization reaction. Find each and calculate the rate of decrease.
- the total proton peak area before the cyclization reaction is represented by SBT
- the peak area of the proton directly bonded to the double bond is represented by SBU
- the total proton peak area after the cyclization reaction is SAT
- the peak area of the proton peak directly bonded to the double bond is SAU.
- the degree of cyclization of the conjugate polymer can also be evaluated by the cyclization rate.
- the cyclization rate can be determined by proton NMR measurement according to the method described in the following documents (a) and (b).
- the oxygen absorption amount of the conjugated diene polymer cyclized product used in the present invention is 5 mLZg or more, preferably 10 mLZg or more.
- the amount of oxygen absorbed is the amount of oxygen absorbed per lg of conjugated cyclized polymer cyclized product when the conjugated conjugated polymer cyclized product is sufficiently absorbed and saturated at 23 ° C. The amount expressed in mL. If the oxygen absorption capacity is low, a large amount of conjugated conjugated polymer cyclized product is required to stably absorb oxygen for a long period of time.
- the amount of oxygen absorbed is mainly correlated with the rate of decrease in unsaturated bonds in the conjugated gen polymer cyclized product.
- the oxygen absorption layer has a thickness of 40 ⁇ m or more, preferably 70 ⁇ m or more, more preferably 100 ⁇ m or more, and even more preferably 200 m or more.
- the desirable oxygen absorption rate from the surface of the oxygen absorption layer is lmLZm 2 / Day or more, preferably 5 mLZm 2 Z days or more, more preferably 10 mLZm 2 Z days or more. Even if the conjugated cyclized polymer has a large oxygen absorption capability, if the oxygen absorption rate is too slow, the gas barrier layer side force of the laminate for the light-emitting element will not be able to absorb sufficiently and penetrate it. It may end up.
- oxygen absorption rate is expressed as the amount of oxygen absorbed per unit area for 24 hours after the start of oxygen absorption measurement.
- the conjugated conjugated polymer cyclized product preferably has a mass average molecular weight of 5,000 to 2,000,000, more preferably ⁇ 1,000,000 to 1,000,000, and even more preferably ⁇ 20,000 to 500,000. If the mass average molecular weight is too low, the oxygen absorption amount of the conjugated gen polymer cyclized product tends to decrease, and if it is too high, the fluidity and plasticity are reduced during the production and use of the conjugated gen polymer cyclized product. , Tend to be difficult to handle.
- the mass average molecular weight is a standard polystyrene conversion value measured using gel “permeation” chromatography.
- the glass transition temperature (Tg) of the conjugated-gen polymer cyclized product is not particularly limited, and is a force that can be appropriately selected depending on the application. Usually, 0 to 250 ° C, preferably 0 to 200 ° C, More preferably, it is in the range of 30 to 180 ° C, particularly preferably 40 to 150 ° C. Conjugated polymer cyclized product glass transition temperature force If these ranges are exceeded, problems may occur in the formability of the conjugated polymer cyclized product, the strength of the member, adhesion to other members, and handleability. is there.
- the glass transition temperature of the conjugated gen polymer cyclized product can be adjusted by appropriately selecting the molecular weight of the monomer used as a raw material or the conjugated gen polymer cyclized product and the unsaturated bond reduction rate.
- additives for example, an antioxidant, a catalyst having an action of increasing oxygen absorption, light, and the like, unless the effects of the present invention are essentially impaired.
- additives such as a surface treatment agent can be blended.
- additives are conventionally known It can be appropriately selected from those according to the purpose and can be blended in an appropriate amount.
- the method for combining the additives is not particularly limited, and can be performed by melt-kneading or mixing in a solution state.
- a double bond derived from a conjugation monomer which remains as it is without cyclization, is prone to oxidative degradation due to chemical structure, and has a low unsaturated bond reduction rate. It is effective to add an antioxidant to the cyclized product.
- the anti-oxidation agent is not particularly limited as long as it is usually used in the field of adhesives, resin materials or rubber materials. Specific examples include phenolic acid inhibitors and phosphite acid inhibitors.
- the anti-oxidation agent may be used alone or in combination of two or more.
- the content of the antioxidant in the oxygen absorption layer is preferably 500 ppm by mass (in this specification, “mass ppm” may be abbreviated as 111) or less, more preferably 400 ppm or less, particularly preferably Is less than 300ppm. When the content is too large, oxygen absorption tends to be deteriorated.
- the lower limit of the antioxidant content is preferably 10 ppm, more preferably 20 ppm. Conjugated polymer cyclized products that do not contain an acid-fastening agent may deteriorate at high temperatures or may have reduced mechanical strength after absorbing oxygen.
- Typical examples of the catalyst having an action of enhancing oxygen absorption include transition metal salts. Even if the conjugated-gen polymer cyclized product of the present invention does not contain such a transition metal salt, it exhibits sufficient oxygen absorptivity. However, by containing a transition metal salt, oxygen can be further added. Excellent absorbency. However, when used in the present invention, it is necessary to consider that the addition of a metal component does not adversely affect transparency and other purposes of use. Examples of such transition metal salts include cobalt oleate ( ⁇ ), cobalt naphthenate ( ⁇ ), cobalt 2-ethylhexanoate ( ⁇ ), cobalt stearate ( ⁇ ), and cobalt neodecanoate ( ⁇ ).
- cobalt 2-ethylhexanoate ( ⁇ ), cobalt stearate ( ⁇ ), and cobalt neodecanoate ( ⁇ ) are more preferred.
- the blending amount of the transition metal salt is usually 10 to 10, OOOppm, preferably 20 to 5, OOOppm, more preferably 50 to 5, OOOppm in the oxygen absorbing layer.
- the photoinitiator absorbs oxygen when conjugated product cyclized product is irradiated with energy rays. It has the effect of promoting the initiation of the reaction.
- Examples of the photoinitiator include those exemplified in JP-T-2003-504042.
- the blending amount is usually 0.001 to 10% by mass, preferably 0.01 to 1% by mass, based on the total amount of the conjugated cyclized polymer.
- the method for forming the oxygen absorbing layer is not particularly limited, and examples thereof include compression molding, injection molding, solvent casting, and melt extrusion.
- multilayer coextrusion molding with a resin used for a protective resin layer described later can also be performed.
- the oxygen-absorbing layer in the present invention can be used not only with two or more types of conjugated-gen polymer cyclized products, but also with other types of resin.
- it can be used by mixing with acrylic resin, alicyclic structure polymer, chain polyolefin, polyester, polyamide or the like, or by multilayering.
- the protective resin layer used in the present invention is a layer mainly for maintaining the mechanical strength of the laminate for a light emitting device. Since the oxygen absorption layer and the gas barrier layer are usually very thin films, the protective resin layer serves as a skeleton of the light emitting element laminate. For this reason, the resin used for the protective resin layer is required to have transparency and mechanical properties particularly according to the intended use.
- the resin used for the protective resin layer preferably has a tensile strength of 400 kg / cm 2 or more measured according to JIS K7113.
- acrylic resin, alicyclic structure polymer, polyester, polyethylene, polypropylene, polystyrene, polycarbonate, polyvinyl chloride, polybutyl alcohol, ethylene vinyl alcohol copolymer, polyvinyl chloride Polyacrylonitrile, polyamide, and the like can be used.
- polyesters, acrylic resin, and alicyclic structure polymers are preferred, and alicyclic structure polymers are more preferable.
- norbornene polymers and vinyl alicyclic hydrocarbon polymers are preferred from the viewpoint of optical properties, heat resistance, and mechanical strength.
- an alicyclic structure polymer having a polar group is used as the alicyclic structure polymer, the affinity with an inorganic substance can be improved without impairing the light transmittance. it can.
- the norbornene polymer used in the present invention includes a ring-opening polymer of a norbornene monomer, a ring-opening copolymer of a norbornene monomer and another monomer capable of ring-opening copolymerization thereof, a hydride thereof, and an addition weight of the norbornene monomer. And addition copolymers of norbornene monomers and other monomers copolymerizable therewith.
- hydrides of ring-opening (co) polymers of norbornene monomers are most preferred from the viewpoints of optical properties, heat resistance, and mechanical strength.
- Norbornene monomers include bicyclo [2.2.1] hept-2-ene (common name: norbornene) and its derivatives (having a substituent on the ring), and tricyclo [4. 3. I 2 ' 5 . O 1 ' 6 ] —deca-1,7-gen, tetracyclo [7. 4. I 1 . '13 0 1.' 9 0 2... '7] - Torideka 2, 4, 6, 11 Tetoraen, tetracyclo [4. 4. I 2' 5 I 7 '10 0 ] Dodeka 3 E down and the rings And derivatives having a substituent.
- Examples of the substituent present in the ring include an alkyl group, an alkylene group, a vinyl group, and an alkoxy carbo group, and the norbornene monomer may have two or more of these. These norbornene monomers can be used alone or in combination of two or more.
- Other monomers capable of ring-opening copolymerization with norbornene monomer include, for example, monocyclic cyclic olefin-based monomers such as cyclohexene, cycloheptene, and cyclootaten. Other monomers copolymerizable with these norbornene monomers can be used alone or in combination of two or more.
- the ratio of the structural unit derived from the norbornene monomer in the addition copolymer to the structural unit derived from the other monomer that can be copolymerized is appropriately selected so as to be in the range of 30:70 to 99: 1, preferably 50:50 to 97: 3, more preferably 70:30 to 95: 5.
- the monocyclic olefin-based polymer for example, an addition polymer of a monocyclic olefin monomer such as cyclohexene, cycloheptene, and cyclootaten can be used.
- a monocyclic olefin monomer such as cyclohexene, cycloheptene, and cyclootaten
- cyclic conjugated polymer for example, a polymer obtained by addition polymerization of 1,2 or 1,4 cyclic conjugated monomers such as cyclopentagen and cyclohexane, and a hydride thereof can be used. .
- Examples of the bull alicyclic hydrocarbon polymer include a bull alicyclic hydrocarbon monomer such as bullcyclohexene and belcyclohexane and hydrides thereof; styrene, ⁇ -methylstyrene, and the like. Hydride of the aromatic ring portion of the polymer of the bulu aromatic monomer; and the like, and can be copolymerized with vinyl alicyclic hydrocarbon monomers and vinyl aromatic monomers. And hydrides of copolymers with other monomers.
- Examples of the polar group in the alicyclic structure polymer having a polar group include a polar group containing an oxygen atom, a nitrogen atom, a sulfur atom, and a silicon atom, a halogen atom, and the like. From the viewpoints of dispersibility with inorganic compounds and compatibility with other resins, polar groups containing oxygen atoms and nitrogen atoms or nitrogen atoms are preferred.
- the polar group examples include a carboxinole group, a canoleboninole group, an epoxy group, a hydroxy group, a xy group, an ester group, a silanol group, a silyl group, an amino group, a nitrile group, and a sulfone group. And so on.
- the gas nolia single layer used in the present invention may be a layer having the performance of a gas nolia which is generally known, but preferably has an oxygen permeability coefficient of 5 mLZm 2 Z days or less, more preferably 3 mLZm 2 Z days or less. More preferably, it is desirably 1 mLZm 2 Z days or less.
- Such a gas nolia single layer may be any layer as long as the oxygen permeation coefficient is in the above range. You should choose the one that suits your purpose, considering the nature of the material itself and the thickness of the gas nolia.
- the oxygen permeation coefficient may be measured by using a commercially available oxygen permeation rate measuring device (for example, “OXY-TRAN” manufactured by MOCON, Inc.) in an atmosphere at a temperature of 25 ° C. and a humidity of 75% RH.
- Examples of the gas barrier layer include a single inorganic gas barrier layer and a single resin gas barrier layer.
- the inorganic gas barrier layer generally has a high gas barrier performance and functions even with a very thin film.
- vapor-deposited films such as metal oxides such as Si, Mg, Ti, Al, In, Sn, Zn, W, Ce, and Zr, nitrogen oxides, and sulfides can be used. Since the gas barrier layer is usually used as the outermost surface of the laminate for a light emitting device, hardness may be required to prevent scratches. Inorganic-based gas nolia monolayers are particularly suitable for such applications.
- the resin-based gas barrier layer a film of polybutyl alcohol, ethylene vinyl alcohol copolymer, polysalt vinylidene, polyacrylonitrile, polyamide 6, polyester, and acrylic resin is preferable. .
- Polysalt vinylidene and polyester are particularly suitable because of their low water vapor permeability.
- Acrylic resin is excellent in terms of transparency and hardness.
- many types of resin can be used in addition to the above-mentioned resin.
- polyethylene, polypropylene, polystyrene, polycarbonate, polyvinyl chloride, and alicyclic structure polymers can be used.
- alicyclic structure polymers particularly norbornene polymers are preferred.
- a gas nolia layer made of a norbornene polymer can also be used as the above-mentioned protective resin layer having high transparency.
- the protective resin layer and gas barrier layer of the light-emitting element laminate that is, the oxygen permeation coefficient of the entire layer outside the oxygen absorption layer is 5 mLZm 2 Z. day or less, preferably 3mLZm 2 Z day or less, further preferably not more than lmLZ m 2 Z date, there is a laminate formed by placing the oxygen absorbing layer on the inside. Further, it is desirable that the oxygen transmission coefficient of the protective resin layer and the gas nolia layer of the laminate for light emitting element is smaller than the oxygen absorption rate of the conjugated polymer cyclized product.
- a light-emitting element including the laminate of this embodiment as a substrate and a sealing container can normally extract light extracted from the substrate side force from the sealing container side. wear.
- an organic EL panel that can emit light from both sides, and an organic EL panel that extracts light from the sealed container side using an opaque material as a substrate, contrary to a normal organic EL panel.
- a light emitting element body 10 in which a cathode 4, a light emitting layer 5, and an anode 6 are laminated is disposed on a substrate 11, and a sealing container 12 is installed so as to cover and cover the light emitting element body 10. Speak.
- an epoxy adhesive or the like may be usually used for bonding the substrate 11 and the sealing container 12.
- V and adhesives having low oxygen permeability are suitable for bonding the substrate 11 and the sealing container 12.
- the light emitting element laminate 14 constituting the substrate 11 and the sealing container 12 includes a gas barrier layer 1, a protective resin layer 2, and an oxygen absorption layer 3.
- the light emitting element laminate 14 is arranged so that the oxygen absorption layer 3 is inside the sealed container 12, that is, the light emitting element body 10 side. Further, it is preferable that the oxygen absorbing layer 3 does not exist in the portion of the substrate 11 that comes into contact with the outside air, or is covered with epoxy resin to make it difficult to absorb oxygen.
- This laminate 14 for light-emitting elements has a high transparency of 400 ⁇ ! It is desirable that the light transmittance in the wavelength region of ⁇ 650 nm is 85% or more.
- the oxygen absorbing layer 3 first absorbs oxygen remaining in the sealing container 12, The inside of the sealed container 12 can be made oxygen-free. Thereafter, the oxygen absorption layer 3 absorbs a small amount of oxygen entering from the outside through the gas nolia layer 1 and the protective resin layer 2, and the inside of the sealed container 12 can always be in an oxygen-free state.
- the side surface of the sealed container is shown greatly in FIG. 1, the actual light emitting element has a very small area compared to the bottom surface of the sealed container, and the side surface does not require any transparency. So, any material that has a low oxygen permeability is not a problem.
- the side surface of the sealing container 12 may be made of the same material as the bottom surface.
- FIG. 2 shows an example of the light-emitting element 13 using the light-emitting element laminate 14 of the present invention for the sealing container 12 and the substrate 11 using another material, for example, an alicyclic structure polymer.
- a small amount of oxygen may enter from the substrate 11 side, but if the substrate 11 is thickened to suppress the oxygen permeation amount, it can be used without any problem in the case of a normal light emitting device.
- Example [0061] The present invention will be described more specifically with reference to examples. In the following description, “part” and “%” are based on mass unless otherwise specified.
- the unsaturated bond reduction rate was determined by proton NMR measurement with reference to the methods described in the following documents (a) and (b).
- the total peak peak area before the cyclization reaction is SBT
- the peak area of the proton directly bonded to the double bond is SBU
- SA SAUZSAT
- the light transmittance in the wavelength range of 400 nm to 650 nm is based on JIS K7361-1, using a turbidimeter (manufactured by Nippon Denshoku Industries Co., Ltd., haze meter NDH2000), the light of a square sample piece with a side of 40 mm Permeation force was calculated.
- the sample is compressed and molded at 100 ° C in a nitrogen atmosphere, and then stretched to form a film with a thickness of 10 m. Then, this is cut into a size of 100 mm ⁇ 100 mm to obtain a sample for measuring oxygen absorption.
- This oxygen absorption measurement sample is placed in an oxygen-impermeable bag with a three-layer film capacity of 150m x 220mm polyethylene terephthalate film (PET) Z aluminum foil (Al) Z polyethylene film (PE). Seal with air. This is left at 23 ° C, and the oxygen concentration in the bag is measured with an oxygen concentration meter every 24 hours. Assuming that oxygen absorption reaches saturation when the concentration stops decreasing, calculate the amount of oxygen absorbed by sample lg.
- an oxygen analyzer HS-750 manufactured by Neutronics, Inc. was used.
- the oxygen absorption rate was measured by measuring the oxygen absorption amount in the same manner as the measurement of the oxygen absorption amount in (3) above, and expressed as the oxygen absorption amount 24 hours after the start of the measurement.
- the measurement temperature was 23 ° C.
- the mass average molecular weight was shown as a standard polystyrene equivalent value by gel-permeation-chromatography analysis.
- the polar group content was calculated by a calibration curve method by measuring the characteristic peak intensity of the polar group by Fourier transform infrared absorption spectrum analysis. For example, measure the acid anhydride group peak intensity (1760 to 1780 cm and determine the content of acid anhydride groups by the calibration curve method. Similarly, measure the peak intensity of the ruboxyl group (1700 cm Thus, the carboxyl group content was determined.
- the styrene unit content (mol%) was determined by iH-NMR analysis.
- the oxygen transmission coefficient was measured with an oxygen transmission rate measuring instrument (MOCON, Inc., “OXY-TRANJ”) in an atmosphere at a temperature of 25 ° C. and a humidity of 75% RH.
- Polyisoprene (73% cis-1,4 bond unit, 22% cis-1,4 bond unit, 22% trans-1,4 bond unit, cut into 10 mm square in a pressure-resistant reactor equipped with a stirrer, thermometer, reflux condenser and nitrogen gas inlet tube 3, 4—bond unit 5%, mass average molecular weight 174, 000) 300 liters, together with Tonolen 700 liters.
- a pressure-resistant reactor equipped with a stirrer, thermometer, reflux condenser and nitrogen gas inlet tube 3, 4—bond unit 5%, mass average molecular weight 174, 000) 300 liters, together with Tonolen 700 liters.
- a film having a width of 100 mm and a length of 100 m was formed by melt extrusion molding using the conjugated-gen polymer cyclized product 1 prepared above.
- a sheet having a width of 100 mm, a length of 500 mm, and a wall thickness of lm m was produced by extrusion molding using a norbornene polymer ('ZEONOR 1060 manufactured by Nippon Zeon Co., Ltd.) as a raw material.
- This sheet was cut into a 50 mm square, and the above conjugate cyclized polymer cyclized product 1 film was pressure-bonded on one surface to prepare a laminated sheet.
- press molding at 100 ° C makes the film surface of the conjugated gen polymer cyclized product 1 inward and has dimensions of width 40mm, width 40mm, height 5mm.
- a box-shaped container with an opening at the bottom was produced.
- a 120 nm silica film was formed on the outer surface of the box-type container by vapor deposition. This was regarded as a light-emitting element sealing container made of a laminate for light-emitting elements. Since the conjugated diene polymer cyclized product absorbs oxygen, the operation was performed in a nitrogen atmosphere when there was a possibility that the conjugated diene polymer cyclized product could come into contact with the outside air. The same applies thereafter.
- the norbornene sheet was cut into a 50 mm square, and a 120 nm silica film was formed on one side by vapor deposition.
- the oxygen permeability coefficient of the sheet on which this silica film was formed was 0.8 mLZm 2 Z days.
- the film of conjugate cyclized polymer 1 prepared above was pressure-bonded to the entire surface of the sheet opposite to the silica film in the same manner as above to prepare a laminate for a light emitting device.
- the light transmittance of the laminate for light emitting element was measured. The results are shown in Table 2.
- the produced light emitting element laminate was used as a light emitting element substrate.
- the light emitting element substrate is covered with the upper opening of the light emitting element sealing container so that the silica film layer faces outside, and the contact surface between the light emitting element substrate and the upper end surface of the light emitting element sealing container is formed.
- the light emitting device sealing container is completed with the light emitting device substrate. Fully sealed. Considering this as a sealed light emitting element, a small hole was opened under a nitrogen atmosphere, and an oxygen concentration measurement sensor was inserted, and the small hole was blocked by this insertion. It was confirmed that the oxygen concentration in the sealed space of the light-emitting element sealing container sealed with the light-emitting element substrate was zero.
- the light-emitting element sealing container (also referred to as a pseudo light-emitting element) sealed with this light-emitting element substrate is left in the atmosphere, and the sealed space is assumed to be inside the organic EL element. Later, the oxygen concentration was measured. The results are shown in Table 2.
- Example 1 The polyisoprene used in Example 1 was changed to a high cis polyisoprene having a cis-1,4 bond unit of 99% or more and a mass average molecular weight force of S302,000, and the amount of p-toluenesulfonic acid used was 2.16 parts.
- a conjugated cyclized polymer 3 was obtained.
- Conjugated polymer cyclized product A box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that conjugated-gen polymer cyclized product 3 was used instead of cyclized product 1. These were evaluated in the same manner as in Example 1. The evaluation results are shown in Tables 1 and 2.
- Polyisoprene was changed to polyisoprene with a weight average molecular weight of 141,000 consisting of 68% cis-1,4 bond units, 25% trans-1,4 bond units and 7% 3,4 bond units, Conjugated polymer cyclization as in Example 1, except that the amount of enesulfonic acid used was changed to 2.69 parts and the amount of sodium carbonate added after the cyclization reaction was changed to 1.03 parts.
- Item 4 was obtained.
- a box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that the conjugated-gen polymer cyclized product 4 was used instead of the conjugated-gen polymer cyclized product 1. This Were evaluated in the same manner as in Example 1. The evaluation results are shown in Tables 1 and 2.
- conjugated cyclized polymer cyclized product 1 obtained in Example 1, 2.5 parts of maleic anhydride was added, and an addition reaction was performed at 160 ° C. for 4 hours. Part of toluene in the solution was distilled off, and phenolic acid deterrent in an amount equivalent to 300 ppm with respect to the conjugated cyclized polymer 1 (trade name: Irganox 1010, Ciba 'Specialty' Chemicals Co., Ltd.) The product is further dried under vacuum to remove toluene and unreacted maleic anhydride to give a modified conjugate conjugated polymer cyclized product (hereinafter referred to as conjugate conjugated polymer cyclized product 5). Obtained.
- a box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that the conjugate conjugate polymer cyclized product 5 was used instead of the conjugate conjugate polymer cyclized product 1. About these, evaluation similar to Example 1 was performed. The evaluation results are shown in Tables 1 and 2. The results of measuring the polar group content of the conjugated diene polymer cyclized product 5 are also shown in Table 1.
- a combined cyclized product (this is referred to as a conjugate conjugated polymer cyclized product 6) was obtained.
- a box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that the conjugated-gen polymer cyclized product 6 was used instead of the conjugated-gen polymer cyclized product 1. These were evaluated in the same manner as in Example 5. The evaluation results are shown in Tables 1 and 2. The results of measuring the polar group content of the conjugated diene polymer cyclized product 6 are also shown in Table 1.
- conjugate conjugate polymer cyclized product 7 was prepared in the same manner as in Example 5 except that the amount of sodium carbonate added after the reaction was changed to 0.75 part. Obtained.
- a box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that the conjugate conjugate polymer cyclized product 7 was used instead of the conjugate conjugate polymer cyclized product 1. These were evaluated in the same manner as in Example 5. The evaluation results are shown in Table 1 and Table 2. The The results of measuring the polar group content of the conjugated diene polymer cyclized product 7 are also shown in Table 1.
- Polyisoprene was changed to polyisoprene with a weight average molecular weight of 141,000 consisting of 68% cis-1,4 bond units, 25% trans-1,4 bond units and 7% 3,4-bond units.
- the modified conjugated gen polymer ring was changed in the same manner as in Example 5 except that the amount of enesulfonic acid used was changed to 2.69 parts and the amount of sodium carbonate added after the cyclization reaction was changed to 1.03 parts. (This is referred to as a conjugate cyclized product 8).
- a box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that the conjugated-gen polymer cyclized product 8 was used instead of the conjugated-gen polymer cyclized product 1. These were evaluated in the same manner as in Example 5. The evaluation results are shown in Tables 1 and 2. The results of measuring the polar group content of the conjugated diene polymer cyclized product 8 are also shown in Table 1.
- conjugate conjugate cyclized product 10 a modified conjugate conjugated polymer cyclized product to which maleic anhydride was added.
- a box-shaped container and a laminate were produced in the same manner as in Example 1, except that the conjugated gen polymer cyclized product 10 was used instead of the conjugated gen polymer cyclized product 1. These were evaluated in the same manner as in Example 1. The evaluation results are shown in Tables 1 and 2. The results of measuring the polar group content and the styrene unit content of the conjugated diene polymer cyclized product 10 are also shown in Table 1.
- the cyclized conjugation polymers obtained in Examples 9 and 10 were substantially free of a gel insoluble in toluene.
- polyisoprene resin was changed to the following molecular weight (cis 1, 4 units 73%, trans 1, 4 units 22%, 3, 4 units 5%, mass average molecular weight 154 , 0 00), the reaction temperature was 80 ° C, the catalyst amount was 2.19 parts, the reaction time was 4 hours, and other operations were experimental examples.
- a conjugated diene polymer cyclized product 11 was obtained.
- a box-shaped container and a laminate for a light-emitting device were produced in the same manner as in Example 1 except that the conjugated-gen polymer 11 was used instead of the conjugated-gene polymer cyclized product 1. These were evaluated in the same manner as in Example 1. The results are shown in Tables 1 and 2.
- a 20% toluene solution of ⁇ -vinene polymer (YS resin ⁇ -1150 ⁇ ; manufactured by Yasuhara Chemical Co., Ltd.) was prepared, and then purified by precipitation with methanol to obtain a ⁇ -pinene polymer from which the antioxidant was removed.
- a test piece was prepared in the same manner as in Comparative Example 1 except that a ⁇ -vinene polymer from which the antioxidant was removed was used instead of polyisoprene, and the same evaluation was performed. The results are shown in Tables 1 and 2.
- This comparative example is an example using a polymer that is not a conjugated cyclized polymer.
- This comparative example is an example using a polymer that is not a conjugated cyclized polymer.
- Example 10 This was dried under reduced pressure at 75 ° C. to obtain a modified conjugene copolymer to which maleic anhydride was added.
- a box-shaped container and a laminate for a light emitting device were produced in the same manner as in Example 1 except that the modified conjugated gen copolymer was used in place of the conjugated gen polymer cyclized product 1. These were evaluated in the same manner as in Example 10. The evaluation results are shown in Tables 1 and 2. The results of measuring the polar group content and the styrene unit content of the modified co-polymer are also shown in Table 1. In this comparative example, the cyclization reaction is not performed, and the unsaturated bond reduction rate is 0%.
- Example 9 132,800 57 50 54 15
- Example 10 137,400 57 60 61 21 15
- Example 11 141,000 48 50 58
- Example 1 (%) 1 day later 10 days later 100 days later
- Example 2 91 0.001>0.001>0.001>
- Example 3 91 0, 001>0.001>0.001>
- Example 4 91 0.001>0.001>0.001>
- Example 5 91 0.001>0.001>0.001>
- Example 6 90 0, 001>0.001>
- Example 7 90 0.001>0.001>0.001>
- Example 8 89 0, 001> 0.001 >0.001>
- Example 9 91 0.001>0.001>0.001>
- Example 10 91 0.001>0.001>0.001>
- Example 11 91 0, 001>0.001>
- Comparative Example 1 78 0, 001> 0.003 0.036
- Comparative Example 2 82 0, 001> 0.068 0.72 Comparative Example 3 70 0.001> 0.003 0.
- the oxygen concentration in the sealed space of the pseudo light-emitting element using the laminate for light-emitting elements of the present invention is 0.001% or less of the measurement limit during the measurement period. It was possible to maintain a substantially complete anoxic state. On the other hand, when the laminate of the present invention was not used so as to exert a comparative force, the oxygen concentration in the sealed space increased with time and could not be kept completely oxygen-free.
- the laminate for a light emitting device of the present invention can provide a transparent resin substrate for an organic EL device and a Z or sealing container also used as an oxygen absorbing member. This makes it possible to provide a flexible new organic EL element in which both sides of the light emitting element are light transmissive.
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Abstract
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115383A (ja) * | 2006-10-13 | 2008-05-22 | Nippon Zeon Co Ltd | 発光素子用樹脂組成物、発光素子用積層体、発光素子 |
| WO2008081593A1 (ja) * | 2006-12-28 | 2008-07-10 | Zeon Corporation | 発光素子用積層体、及び発光素子 |
| JP2010045016A (ja) * | 2008-07-16 | 2010-02-25 | Jsr Corp | 水分及び酸素捕捉用組成物、硬化体、及び有機el素子 |
| JP2010045015A (ja) * | 2008-07-16 | 2010-02-25 | Jsr Corp | 水分及び酸素捕捉用組成物、硬化体、及び有機el素子 |
| US11071224B2 (en) | 2014-10-28 | 2021-07-20 | Semiconductor Energy Laboratory Co., Ltd. | Functional panel, method for manufacturing the same, module, data processing device |
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| US9401491B2 (en) * | 2014-05-30 | 2016-07-26 | Samsung Sdi Co., Ltd. | Direct/laminate hybrid encapsulation and method of hybrid encapsulation |
| KR102456654B1 (ko) | 2014-11-26 | 2022-10-18 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 표시 장치 및 전자 기기 |
| DE102015205503A1 (de) * | 2015-03-26 | 2016-09-29 | Osram Oled Gmbh | Elektronisches Bauelement und Verfahren zum Herstellen eines elektronischen Bauelementes |
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| US11579093B2 (en) * | 2020-04-22 | 2023-02-14 | SciLogica Corp. | Optical component |
| KR102382567B1 (ko) * | 2020-04-29 | 2022-04-04 | 충북대학교 산학협력단 | 산소차단성이 증대된 이차전지용 포장재, 이의 표면처리방법, 및 이를 포함하는 파우치형 이차전지 |
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- 2006-01-26 US US11/883,224 patent/US20080131646A1/en not_active Abandoned
- 2006-01-26 TW TW095103048A patent/TWI381765B/zh not_active IP Right Cessation
- 2006-01-26 KR KR1020077019522A patent/KR101232479B1/ko not_active Expired - Fee Related
- 2006-01-26 WO PCT/JP2006/301219 patent/WO2006080393A1/ja not_active Ceased
- 2006-01-26 JP JP2007500570A patent/JP4877605B2/ja not_active Expired - Fee Related
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115383A (ja) * | 2006-10-13 | 2008-05-22 | Nippon Zeon Co Ltd | 発光素子用樹脂組成物、発光素子用積層体、発光素子 |
| WO2008081593A1 (ja) * | 2006-12-28 | 2008-07-10 | Zeon Corporation | 発光素子用積層体、及び発光素子 |
| JP2010045016A (ja) * | 2008-07-16 | 2010-02-25 | Jsr Corp | 水分及び酸素捕捉用組成物、硬化体、及び有機el素子 |
| JP2010045015A (ja) * | 2008-07-16 | 2010-02-25 | Jsr Corp | 水分及び酸素捕捉用組成物、硬化体、及び有機el素子 |
| US11071224B2 (en) | 2014-10-28 | 2021-07-20 | Semiconductor Energy Laboratory Co., Ltd. | Functional panel, method for manufacturing the same, module, data processing device |
| US11818856B2 (en) | 2014-10-28 | 2023-11-14 | Semiconductor Energy Laboratory Co., Ltd. | Functional panel, method for manufacturing the same, module, data processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2006080393A1 (ja) | 2008-06-19 |
| TWI381765B (zh) | 2013-01-01 |
| US20080131646A1 (en) | 2008-06-05 |
| JP4877605B2 (ja) | 2012-02-15 |
| KR101232479B1 (ko) | 2013-02-12 |
| KR20070114726A (ko) | 2007-12-04 |
| TW200631455A (en) | 2006-09-01 |
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