WO2007074782A1 - アントラキノン誘導体を含む光硬化性樹脂組成物 - Google Patents
アントラキノン誘導体を含む光硬化性樹脂組成物 Download PDFInfo
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- WO2007074782A1 WO2007074782A1 PCT/JP2006/325798 JP2006325798W WO2007074782A1 WO 2007074782 A1 WO2007074782 A1 WO 2007074782A1 JP 2006325798 W JP2006325798 W JP 2006325798W WO 2007074782 A1 WO2007074782 A1 WO 2007074782A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
- C08K5/08—Quinones
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/22—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and doubly-bound oxygen atoms bound to the same carbon skeleton
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/38—Esters containing sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/38—Esters containing sulfur
- C08F220/382—Esters containing sulfur and containing oxygen, e.g. 2-sulfoethyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/24—Anthracenes; Hydrogenated anthracenes
Definitions
- the present invention relates to an anthraquinone derivative having a specific molecular structure and a photocurable resin composition containing an anthraquinone derivative.
- a photocurable resin composition includes a component to be polymerized (for example, a monomer or an oligomer) and a photopolymerization initiator.
- the light irradiated to cure the photocurable resin composition is usually an ultraviolet ray.
- the photocurable resin composition is sometimes used as an adhesive.
- a wide range of applications such as temporary fixing of parts to printed boards, masking of substrates, and main seals of liquid crystal panels are used. Used in various applications.
- the photocurable resin composition can be used as an adhesive, but in recent years, particularly in the field of electronic materials and recording display materials, the photocurable resin composition has high sensitivity and low outgassing. And high adhesive strength to the substrate are required.
- photocurable resin compositions used as sealants for flat panel displays such as liquid crystal displays and organic EL displays are required to be cured by relatively long-wavelength ultraviolet or visible light.
- a liquid crystal display by a liquid crystal dropping (ODF) method a liquid crystal is dropped on a substrate coated with a sealant made of a photocurable resin composition, and then irradiated with light to form a sheet.
- the adhesive is cured.
- the irradiated light is ultraviolet light in a short wavelength band, it often damages liquid crystal molecules. For this reason, special considerations were required, such as shielding light from areas other than the desired irradiation area, and reducing the spot diameter of the light source. Therefore, the photocurable resin composition for the sealant is strongly required to be cured by ultraviolet light or visible light in a relatively long wavelength band.
- ultraviolet light and visible light having a wavelength of 370 nm or more have high transmittance with respect to an organic material substrate, and are also known as a high pressure mercury lamp, a low pressure mercury lamp, a metal halide lamp, a xenon lamp, a fluorescent lamp, Since any lamp light source can be used, it is strongly desired to use it as a wavelength for photocuring in terms of environmental load and energy saving.
- photopolymerization initiators can be broadly classified into self-cleavage photoinitiators; hydrogen abstraction photoinitiators; and photoinitiators using photoinduced electron transfer reactions.
- the self-opening photoinitiator is one that absorbs light energy and then cleaves into active radical species to initiate a polymerization reaction, and is typified by an acetophenone derivative.
- a hydrogen abstraction type photoinitiator is one that, after absorbing light energy, generates an active radical species by a hydrogen abstraction reaction of a carbonyl group to initiate a polymerization reaction, and is typified by benzophenone, thixanthone, and the like.
- Photoinitiators that utilize photoinduced electron transfer reactions are typified by combinations of triazine and organic dyes, organic acid oxides, and organic dyes.
- a photocurable resin composition containing such a photopolymerization initiator has a relatively short wavelength of 300 nm or more and less than 370 ⁇ m, is not irradiated with ultraviolet rays, and is not cured! I can't get anything.
- a photocuring containing a-aminoacetophenone-based or acylphosphine oxide-based photopolymerization initiator which is a self-cleavage photopolymerization initiator that absorbs light from ultraviolet light in the long wavelength band to visible light.
- An active rosin composition has been developed.
- these photopolymerization initiators generate benzaldehyde, for example, as a photodecomposition product, the viewpoint power to reduce hygiene problems, for example, outgas such as V OC (volatile organic compound) is preferable. It was not a photopolymerization initiator.
- a photosensitizer having a (meth) atalyloyl group in a part of a tetraalkyldiaminobenzophenone skeleton has been proposed (see Patent Document 2).
- this method is complex to synthesize and has insufficient sensitivity for radical generation efficiency.
- a thixanthone derivative having an ethylenically unsaturated group has also been proposed (see Patent Document 3).
- Patent Document 3 since a carbonyl group is directly introduced into thixanthone as a substituent, the electron density of the aromatic ring decreases. Therefore, the radical generation ability may be reduced and the sensitivity may be insufficient.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-313216
- Patent Document 2 Japanese Patent Laid-Open No. 6-211758
- Patent Document 3 Japanese Patent Laid-Open No. 2004-224993
- Patent Document 4 JP-A-53-142490
- photocurable resin compositions that are highly sensitive to ultraviolet light and visible light having a relatively long wavelength are limited, and have low outgassing properties and properties that do not easily give photolysis products.
- a photocurable rosin composition having a combination has been provided.
- the present invention provides these photocurable resin compositions using a thiaanthraquinone derivative having a specific structure. These photocurable resin compositions are preferably used as adhesives or sealants in the electronic component field.
- the first of the present invention relates to the following photocurable resin composition.
- a photocurable resin composition comprising a component (a) composed of an anthraquinone derivative represented by the formula (I) and a component (b) composed of a compound having a (meth) atalyloyl group in the molecule, A part or all of the component contained in the component (b) further has an oxyl group in the molecule, and the content of the component (a) is based on the content of the component (b).
- a photocurable resin composition that is 0.01 to 10% by mass.
- X represents a phenyl group or an alkyl group having 1 to 8 carbon atoms, an alcohol form of the phenyl group or an alkyl group, or a derivative of the alcohol form
- R is a hydrogen atom or a methyl group
- Y is a phenylene group or a derivative thereof, or an alkylene group having 1 to 8 carbon atoms or a derivative thereof.
- Z is a single bond or a divalent organic group
- a sealant comprising the photocurable resin composition according to any one of [1] to [4].
- a liquid crystal sealant comprising the photocurable resin composition according to any one of [1] to [4].
- a sealant for a liquid crystal dropping method comprising the photocurable resin composition according to any one of [1] to [4].
- a second aspect of the present invention relates to a method for manufacturing a liquid crystal panel shown below.
- a third aspect of the present invention relates to the following anthraquinone derivatives.
- a to A is a thioether group represented by the formula (A),
- a to A other than the thioether group represented by the formula (A) are a hydrogen atom or a carbon number of 1
- Y is a phenylene group or a derivative thereof, or an alkylene group having 1 to 8 carbon atoms or a derivative thereof.
- Z is a single bond or a divalent organic group
- a photocurable resin composition comprising the anthraquinone derivative according to [12] and a compound having a (meth) ataryloyl group.
- the photocurable resin composition of the present invention has excellent sensitivity to long-wavelength ultraviolet light and visible light, and has a small amount of outgassing during curing. It is particularly advantageously used in the field of recording and display materials. Among them, it is preferably used as a liquid crystal sealant for producing a liquid crystal panel by a liquid crystal dropping method.
- the photocurable resin composition of the present invention includes a component (a) composed of an anthraquinone derivative represented by the following formula (I), and a component (b) composed of a compound having a (meth) atalyloyl group.
- Component (a) consists of a compound represented by formula (I).
- X is preferably a phenyl group, an alkyl group having 1 to 8 carbon atoms, an alcohol form of the phenyl group or an alkyl group, or a derivative of the alcohol form.
- Examples of the phenol group represented by X, an alcohol form thereof, or a derivative thereof include a phenyl group, a phenoxy group, a methoxyphenyl group (including a 3-methoxyphenyl group), and the like.
- Examples of the alkyl group having 1 to 8 carbon atoms represented by X include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, and the like.
- Examples of the alcohol group of an alkyl group having 1 to 8 carbon atoms represented by X include a hydroxymethyl group, a hydroxychetyl group, a hydroxypropyl group, a hydroxybutyl group and the like.
- the alcohol derivative of a phenol group or an alkyl group having 1 to 8 carbon atoms is, for example, a derivative in which an alcohol group hydroxyl group is bonded to an arbitrary group by an ester bond, an ether bond or a urethane bond. It is. Any group bonded here includes a reactive functional group that preferably has a reactive functional group, including a photopolymerization functional group or a thermopolymerizable functional group. Examples of the photopolymerization functional group include A (meth) atallyloyl group is included, and examples of the thermally polymerizable functional group include an oxyl group.
- the compound represented by the formula (I) contained in the photocurable resin composition has a hydroxyl group or a reactive functional group, it is represented by the formula (I) when the resin composition is cured.
- the chemical compound and other components can form chemical bonds such as hydrogen bonds and additional bonds. Therefore, elution of the compound represented by the formula (I) or the decomposition product thereof can be suppressed.
- Specific examples of the compound represented by the formula (I) include 2-phenolthio-9,10-anthraquinone; 2- (3-methoxyphenolthio) -9,10-anthraquinone; 2- (2- Hydroxyethylthio) -9,10-anthraquinone; and 2- (2-hydroxyethylthio) -9,10-anthraquinone derivatives.
- the compound represented by the formula (I) can be produced by any method, and for example, it can be produced with reference to the description in JP-A No. 2003-104930. That is, a compound having a thiol may be allowed to act on a halogenated hydroquinone (eg, 2-chloroanthraquinone).
- a halogenated hydroquinone eg, 2-chloroanthraquinone
- the component (a) contained in the photocurable resin composition of the present invention is an anthraquino represented by the formula (I) It may contain a compound represented by the formula ( ⁇ ), which is an embodiment of a thione derivative.
- the compound represented by the formula ( ⁇ ) has a thioether group containing a (meth) attalyloyl group.
- R is a hydrogen atom or a methyl group.
- Y is a phenylene group or a derivative thereof, or an alkylene group having 1 to 8 carbon atoms or a derivative thereof.
- Z is a single bond or a divalent organic group.
- the divalent organic group is not particularly limited and is appropriately selected according to the method for producing the compound.
- the compound represented by the formula ( ⁇ ) can be produced by any method, and can be synthesized, for example, via the following intermediate (II).
- Y is a phenylene group or a derivative thereof as described above, or an alkylene group having 1 to 8 carbon atoms or a derivative thereof.
- “Halo” is a halogen atom such as a black hole.
- the intermediate ( ⁇ ) is produced with reference to the reaction between a halogenated anthraquinone and a hydroxyl group described in JP-A-2003-104930.
- HS—Y—OH in the above reaction formula is preferably a C 1-8 alkyl alcohol having a mercaptophenol or mercapto group.
- Mercaptophenol can be para, meta, or ortho.
- alkyl alcohol having 1 to 8 carbon atoms having a mercapto group examples include 2-mercaptoethanol, 1-mercapto-2-propanol, 3-mercapto-1-propanol, 4-mercapto-1-butanol, 3-mercapto-2-butanol, 5-mercapto-1-pentanol, 6-mercapto-1-hexano And 3-mercapto-1-hexanol. From the viewpoint of obtaining raw materials, 2-mercaptoethanol, 1-mercapto-2-propanol, and 3-mercapto-1-propanol are preferred.
- the intermediate represented by the formula ( ⁇ ) is subjected to dehydration condensation reaction of (meth) acrylic acid; the carboxyl group of the (meth) acrylate having a carboxyl group is removed.
- the above reaction formula is an example in which (meth) acrylic acid is subjected to dehydration condensation on the intermediate (II).
- Z is a single bond.
- (meth) acrylate having a carboxyl group is dehydrated and condensed in the intermediate ( ⁇ ).
- Z is a carbo-loxy group.
- Examples of (meth) atalylates having a carboxyl group include force-prolatatone-modified (meth) atalylate, 2- (meth) atalylooxychetyl phthalic acid, 2- (meth) atalylooxychetyl succinic acid , 2- (Meth) Ataloyloxyschetilhydrophthalic acid, 2- (Meth) Atalyloxyxetylmaleic acid, 2- (Meth) Atalyloxypropyl phthalic acid, 2- (Meth) Atallylooxy Propyl succinic acid, 2- (meth) ataryloxypropyl maleic acid and the like are included.
- the above reaction formula is an example in which an intermediate ( ⁇ ) is subjected to a ring-opening addition reaction of alkylene oxide and then subjected to dehydration condensation of (meth) acrylate having a strong lpoxyl group.
- alkylene oxide include ethylene oxide and propylene oxide.
- (meth) acrylate having a carboxyl group include the same compounds as described above.
- Z is an oxide group containing a carboxylate.
- Y contained in the intermediate (II) is an alkylene group, so that Y is preferably a phenylene group.
- the above two reaction formulas are examples in which a ring-opening addition reaction of (meth) acrylate having an oxyl group is performed on the intermediate ( ⁇ ). Specifically, there are a reaction formula in which glycidyl (meth) acrylate is reacted, and a reaction formula in which 4-hydroxybutyl (meth) acrylate glycidyl ether is reacted. Also in the above reaction, Y is preferably a phenylene group because it is difficult to react when Y contained in the intermediate ( ⁇ ) is an alkylene group. In this case, Z is an alkylene oxide group having a hydroxyl group.
- the above two reaction formulas are examples in which (meth) acrylate having an isocyanate group is urethanated to the intermediate ( ⁇ ).
- the reaction formula obtained by reacting intermediate ( ⁇ ) with 2- (meth) atiloyloxychetyl isocyanate, and 1, 1 ′-[bis (meth) ataryloxymethyl] ethyl isocyanate It is the reaction formula made to react. In this case, Z becomes a force ruberamoyloxy group.
- one of the diisocyanate compounds is reacted with a urethane bond with the intermediate ( ⁇ ); and the other isocyanate has a hydroxyl group (meth).
- This is an example of reaction with attalylate.
- Z is also a force ruberamoyloxy group.
- diisocyanate compound examples include tolylene diisocyanate, diphenylmethane diisocyanate, xylylene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, bis (isocyanate methyl) cyclohexane, Naphthalene diisocyanate Salts, norbornene diisocyanate, 1,6-diisocyanate-2,2,4-trimethylhexane and the like.
- the reactivity of the two isocyanates of the diisocyanate compound is preferably different from the viewpoint of reaction control. Therefore, tolylene diisocyanate and isophorone diisocyanate can be preferably used.
- Specific examples of the (meth) acrylate having a hydroxyl group include hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate and jetylene glycol (meth) acrylate.
- hydroxyethyl (meth) acrylate hydroxypropyl (meth) acrylate, and hydroxybutyl (meth) acrylate are preferred.
- the content of the compound represented by the component (a) contained in the photocurable resin composition is usually 0.01 to 10% by mass with respect to the component (b) described later, preferably 0.1 to 5% by mass. If the content is 0.01% by mass or more, the necessary curability can be obtained, and if it is 10% by mass or less, the necessary adhesive strength of the cured product is obtained.
- Component (a) may act as a photopolymerization initiator. Furthermore, the compound represented by the formula (I) or the formula ( ⁇ ) constituting the component (a) has an absorption band in a longer wavelength band as compared with an anthraquinone derivative which has been used as a photopolymerization initiator. Therefore, the photocurable resin composition containing component (a) can be cured by light having a relatively long wavelength. These will be described in detail later.
- the photocurable resin composition of the present invention of the other aspect includes an anthraquinone derivative represented by the following formula ( ⁇ ).
- the compound represented by the formula ( ⁇ ) has an anthraquinone skeleton, and A to A of anthraquinone
- the thioether group represented by the formula (A) may be substituted with any of A to A, but preferably
- each thioether group may be the same or different.
- a to A are a hydrogen atom or a lower group.
- alkyl group for example, an alkyl group having 1 to 3 carbon atoms, preferably a methyl group.
- R in the formula (A) is a hydrogen atom or a methyl group.
- Y in the formula (A) is a vinylene group or a derivative thereof, or an alkylene group having 1 to 8 carbon atoms or a derivative thereof.
- Z in the formula (A) is a single bond or a divalent organic group.
- the thioether group represented by the formula (A) may have one or more (meth) atalyloyl groups, and may have two or more (meth) atalyloyl groups.
- Specific examples of the thioether group represented by the formula (A) include a group similar to the thioether group of the compound represented by the formula ( ⁇ ).
- preferable examples of the compound represented by the formula ( ⁇ ) include the compound represented by the formula ( ⁇ ).
- the compound represented by the formula ( ⁇ ) is used for any purpose, but is preferably used as a photopolymerization initiator.
- a known and commonly used (meth) acrylate monomer may be used as long as the polymerization monomer is a monomer having an ethylenically unsaturated group.
- Component (b) contained in the photocurable rosin composition also has a compound strength having a (meth) atalyloyl group in the molecule.
- the number of (meth) atalyloyl groups per molecule may be one or more.
- the (meth) atalyloyl group means an attalyloyl group or a methacryl group.
- Examples of the compound having one (meth) attalyloyl group per molecule include (meth) acrylate.
- Examples of (meth) acrylic acid esters include methyl ester, ethino estenole, propino estenole, butino estenole, amino les eno enole, 2- ethino hexeno estenole, octino les eno enore, nonino les eno enore.
- Component (b) may also contain oligomers of these compounds.
- Examples of the compound having two or more (meth) attalyloyl groups per molecule include polyfunctional (meth) acrylic acid esters.
- polyfunctional (meth) acrylic acid esters examples include 1,3-butylene glycol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,6- Di (meth) acrylates such as xanthdiol, neopentyl glycol, 1,8-octanediol, 1,9-nonanediol, tricyclodecane dimethanol, ethylene glycol, polyethylene glycol, propylene glycol, polypropylene glycol;
- EO-modified bisphenol A di (meth) acrylate PO-modified bisphenol A di (meth) acrylate, force prolataton modified bisphenol A (meth) acrylate, EO modified bisphenol F di (meth) acrylate
- alkylene oxides such as di (meth) acrylate of prolataton-modified bisphenol.
- polyester poly (meth) acrylate polyether poly (meth) acrylate, urethane poly (meth) acrylate, and the like may be used.
- Component (b) is a compound force having a (meth) attalyloyl group in the molecule. Part or all of the components contained in component (b) further have an oxylanyl group in the molecule. It is preferable. One or more oxyl groups are contained in the molecule.
- the compound constituting the component (b) has not only a (meth) atalyloyl group but also an oxyl group in the molecule, it can be applied to a photocurable resin composition containing it. Curability and thermosetting can be imparted. As a result, the curability of the cured product can be increased and the adhesiveness can be increased, so that it is useful as an adhesive or a sealant.
- Examples of compounds having a (meth) attalyloyl group and an oxylanyl group in the molecule include the power of known and commonly used compounds, such as glycidyl ester of (meth) acrylic acid and (meth) Examples thereof include partial epoxy (meth) acrylate with added acrylic acid, and epoxy-modified urethane (meth) acrylate in which (meth) acrylate having a hydroxyl group and an oxysilane compound having a hydroxyl group are combined with diisocyanate.
- examples of the compound having a (meth) atalyloyl group and an oxyl group in the molecule include bisphenol A diglycidyl ether di (meth) acrylate, bisphenol F diglycidyl ether di (meth).
- Epoxy (meth) acrylate, such as attalylate, PO-modified bisphenol A diglycidyl ether di (meth) acrylate, diglycidyl phthalate di (meth) acrylate, etc. are included.
- Preferable examples include a bur compound in which 0.2 to 0.8 equivalent of (meth) acrylic acid is added to bisphenol A diglycidyl ether.
- the compound having a (meth) atalyloyl group and an oxyl group in the molecule contained in the component (b) may be one kind or a combination of plural kinds.
- the content of the compound having a (meth) attalyloyl group and an oxylanyl group in the molecule is arbitrary and not particularly limited, but is 50% by mass based on the entire component (b). The above is preferable.
- the compound contained in component (b) is preferably a photopolymerizable compound.
- a (meth) attalyloyl group undergoes an addition polymerization reaction. Because the oxyl group has excellent thermal polymerizability
- the resin composition can be imparted with thermosetting properties that are not only photocurable.
- a cured product obtained by addition polymerization of an oxylanyl group with heat is excellent in adhesion and the like, and is therefore suitable as a sealing material.
- the photocurable resin composition may contain a component (c) composed of a compound containing an oxyl group in the molecule and having no radical polymerizability.
- the compound having no radical polymerizability may be any compound that does not have a radical polymerizable functional group, and examples of the radical polymerizable functional group include a (meth) atalyloyl group.
- the photocurable resin composition containing the component (c) can have not only photocurability but also thermosetting, a cured product having a strong cross-linked structure by photocuring and thermosetting.
- the component (c) is preferably added when the photocurable resin composition is cured by radical photopolymerization and then further heated to obtain a stronger cured product.
- the component (a) and the component (b) react by radical photopolymerization, and the component (c) undergoes thermal polymerization in the next heating step. A cured product can be obtained.
- the photocurable resin composition of the present invention is preferably subjected to radical photopolymerization with ultraviolet light or visible light in a relatively long wavelength region (370 ⁇ m or more) as described later.
- radical photopolymerization is performed with light in the long wavelength region
- the light of the light is compared with that when radical photopolymerization is performed under the same conditions except that ordinary ultraviolet rays (use ultraviolet rays of less than 370 nm) are used. Due to the difference in energy, the degree of cure of the resulting cured product may be low.
- the component (c) is added to the photocurable resin composition, a strong cured product can be obtained by heat curing in addition to radical photopolymerization. Preferred as an agent.
- Examples of the compound contained in component (c) include known and commonly used epoxy resins.
- Examples of known and commonly used epoxy resins include aromatic diols (represented by bisphenol A, bisphenol S, bisphenol F, bisphenol AD, etc.) or those modified with ethylene glycol, propylene glycol, or alkylene glycol.
- Novolac-type polyvalent glycidyl ether compounds obtained by reaction of phenol or talesol with formaldehyde and force-induced novolac oleaginous chlorohydrin; polyphenols (represented by polyalkenylphenols and their copolymers) Polyhydric glycidyl ether compound obtained by reaction with picrohydrin;
- the component (c) includes epoxy polymer such as epoxidized polybutadiene and epoxidized polyisoprene; bis (2,3-epoxycyclopentyl) ether; urethane-modified epoxy resin; polysulfide-modified epoxy.
- Rubber modified epoxy resin modified with CTBN, ATB N, etc.
- Polyalkylene glycol type epoxy resin Ether elastomer added bisphenol A type epoxy resin
- Silicon rubber modified epoxy resin Acrylic modified epoxy Modified epoxy resins such as resin can also be included within a range that does not impair the properties of the present invention.
- the content of component (c) in the photocurable resin composition is 10 to 50 quality relative to component (b).
- the amount is preferably%. This is to increase the adhesion and maintain the required photocurability.
- the photopolymerizable resin composition may contain a latent epoxy curing agent (d).
- a latent epoxy curing agent does not react with epoxy groups at the temperature at which the composition is normally stored (usually at room temperature), but the ability to cure the composition when exposed to light or heat. It is a hardening
- Known latent epoxy curing agents can be used.
- the ability to provide a one-pack type composition having good viscosity stability is that organic acid dihydrazide compounds, imidazole and its derivatives, dicyandiamide, Aromatic amines are preferred. These can be used alone or in combination.
- latent epoxy curing agents are preferred.
- examples include amine-based latent curing agents having a melting point or a softening point temperature of 100 ° C or higher by the ring and ball method.
- the active hydrogen of the amine latent hardener ammine causes a thermal nucleophilic addition reaction to the (meth) atallyloyl group or oxylanyl group of the compound contained in the component (b) or component (c). Therefore, curability and crosslink density are improved, and adhesive strength, heat resistance, durability, and high temperature and high humidity adhesion reliability are improved.
- Preferred amine-based latent curing agents include dicyandiamides such as dicyandiamide (melting point 209 ° C); adipic acid dihydrazide (melting point 181 ° C), 1,3-bis (hydrazinocarboxyl) -5 -Organic acid dihydrazides such as isopropylhydantoin (melting point 120 ° C); 2,4-diamino-6- [2'-ethylimidazolyl- (1 ')]-ethyltriazine (melting point 215 to 225.
- dicyandiamides such as dicyandiamide (melting point 209 ° C); adipic acid dihydrazide (melting point 181 ° C), 1,3-bis (hydrazinocarboxyl) -5 -Organic acid dihydrazides such as isopropylhydantoin (melting point 120 ° C); 2,4-dia
- the content of the latent epoxy curing agent (d) contained in the photocurable resin composition is usually 3 to 30% by mass, preferably 5 to 10% by mass, based on the component (b). . Within this range, adhesion reliability is exhibited and the viscosity stability of the adhesive composition can be maintained.
- the photocurable resin composition may contain a filler (e).
- Filler (e) is electronic
- a normal filler that can be used in the material field is preferable.
- Specific examples of the filler (e) include calcium carbonate, magnesium carbonate, barium sulfate, magnesium sulfate, aluminum silicate, zirconium silicate, iron oxide, titanium oxide, acid aluminum (alumina), acid zinc, dioxide
- Inorganic fillers such as silicon, potassium titanate, kaolin, talc, asbestos powder, quartz powder, mica, glass fiber; polymethyl methacrylate, polystyrene, monomers composing these and monomers copolymerizable with these monomers Contains known organic fillers for polymerized copolymers. These fillers may be grafted with an epoxy resin or a silane coupling agent.
- the content of the filler (e) in the photocurable resin composition is usually 5 to 30% by mass, preferably 10 to 20% by mass, based on the entire photocurable resin composition. Within this range, the coating stability and dimensional stability of the resin composition are improved, and the high temperature and high humidity adhesion reliability is improved.
- the photocurable resin composition may contain other optional components.
- optional ingredients include silane coupling agents.
- silane coupling agent are not particularly limited. For example, butyltrimethoxysilane, ⁇ - (meth) atalyloxypropyltrimethoxysilane, y-glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropinoretrie Examples include ethoxysilane, j8- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, ⁇ -mercaptopropyltrimethoxysilane, and y-aminopropyltriethoxysilane.
- silane coupling agents may be used singly or in combination of two or more. These silane coupling agents may be oligomerized by dehydration condensation with other silane compounds such as tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, and phenoltrimethoxysilane. ⁇ .
- the content of the silane coupling agent in the photocurable resin composition is preferably 0.01 to 5 mass% with respect to component (b). Adequate adhesion improvement is obtained when the content is 0.01 parts by mass or more, and when the content is 5 parts by mass or less, the amount of outgas generated when curing the resin can be minimized.
- photopolymerization initiators As other optional components, other photopolymerization initiators, sensitizers or promoters are included. May be. Examples of these include tertiary amines, thiol compounds, hydroquinones, or sterically hindered phenolic compounds, polymerization inhibitors such as phenothiazine, solvents, antioxidants, antifoaming agents, dyes, etc. Used accordingly.
- the photocurable resin composition can be produced by any method as long as the effects of the present invention are not impaired, but can be obtained by mixing the above-mentioned components by a conventional method.
- a known kneading machine such as a double-arm stirrer, a roll kneader, a twin-screw extruder, or a ball mill kneader can be used.
- the glass bottle or plastic container is hermetically filled. Can be stored and transported.
- the photocurable resin composition of the present invention is cured by irradiation with light, it is applied to the same use as a normal photocurable resin composition, but is preferably used as a sealant.
- the resin composition of the present invention may be applied to a portion to be sealed and then cured by irradiation with light.
- a known and conventional light source that emits ultraviolet light or visible light may be used.
- any known lamp light source such as a high-pressure mercury lamp, a low-pressure mercury lamp, a metal lamp, a ride lamp, a xenon lamp, or a fluorescent lamp can be used.
- the light irradiated for curing the photocurable resin composition of the present invention may be visible light or ultraviolet light having a relatively long wavelength.
- the mechanism is not limited, for example, the anthraquinone derivative contained in the resin composition of the present invention absorbs the light and is excited to cause a hydrogen abstraction reaction of monomer power.
- the present inventor compared the anthraquinone derivative, which has been conventionally used as a photopolymerization initiator, with the anthraquinone derivative represented by the formula (I) or the formula ( ⁇ ), and the formula ( ⁇ ). Have been found to absorb light on the longer wavelength side. This is thought to be due to the thioether group bound to the anthraquinone skeleton.
- FIG. 1 is a light absorption spectrum of a compound represented by the following structural formula.
- formula B “a compound having an anthraquinone skeleton to which a thioether group is bonded” is represented by the following formula A: More than “a compound having an anthraquinone skeleton, to which a thioether group is bonded”
- the compounds represented by formula (1), formula ( ⁇ ) and formula ( ⁇ ) preferably have an absorption peak in the range of 370 to 450 nm.
- the photocurable resin composition of the present invention is cured with light having a relatively long wavelength, and thus is particularly preferably used as a sealant for sealing a substance that is easily deteriorated by light.
- liquid crystal molecules are easily used for photodegradation and are therefore preferably used as liquid crystal sealants in the production of liquid crystal panel cells.
- the liquid crystal sealant preferably contains spacer particles together with the photocurable resin composition of the present invention. Spacer particles are particles for providing a gap between liquid crystal panel substrates (usually glass substrates), and are usually silica particles.
- the liquid crystal dropping method includes a step of applying a sealing agent to a first substrate to form a desired frame shape; a step of dropping and supplying liquid crystal into the frame-shaped frame; A step of superimposing the opposing second substrates; and a step of curing the sealant with light, and further comprising a step of curing the sealant with heat as necessary.
- the liquid crystal may be deteriorated if light is also applied to the liquid crystal dropped into the frame. Therefore, using the photocurable resin composition of the present invention as a sealing agent (sealing agent for liquid crystal dropping method), relatively By photocuring with long wavelength light (light with weak energy), deterioration of the liquid crystal can be suppressed.
- the wavelength of light for curing the sealant is preferably 370 to 450 nm.
- toluene 500 mL was added, dissolved uniformly, and washed 5 times with ultrapure water (200 mL). After washing with water, the toluene was removed again under the conditions of 50 ° C and 8000 to 10,000 Pa using an evaporator.
- the obtained photopolymerization initiator was a yellow viscous liquid, and it was confirmed by FT-IR and 'H-NMR that the meta-atalyloyl group was completely introduced. See ⁇ H-NMR below). The obtained liquid was used in Example 6 described later.
- Trimethylolpropane with EO Carrier Tartrate (Biscoat V # 360: Osaka Organic Chemical Co., Ltd.)
- O-cresol novolac epoxy resin (EOCN-1020-75: manufactured by Nippon Kayaku Co., Ltd.) [0113] The following components were added to the obtained uniform solution and premixed with a mixer.
- Latent epoxy curing agent 8 parts 1,3-bis (hydrazinocarboethyl) -5-isopropylhydantoin (Amicure VDH-J: Ajinomoto Co., Inc.)
- KIP150 poly [2-hydroxy-2-methyl- (4- (1-methylbi- (L) Fuel) Propanone]: manufactured by Lamberti
- Example 5 Preparation of rosin composition 3
- the compound of Example 1 (1 part) and bisphenol APO-modified diglycidyl ether diatalylate (100 parts) (epoxy ester 3002M: manufactured by Kyoeisha Engineering Co., Ltd.) were mixed in a separable flask, The kneaded product was vacuum defoamed to obtain a photocurable resin composition (P5).
- a photocurable resin composition (P6) was obtained in the same manner as in Example 5 except that the photoinitiator initiator was replaced with the compound of Example 1 and the compound of Example 2 was used.
- the photopolymerization initiator was replaced with the compound of Example 1 and lucillin TPO (2,4,6-trimethylbenzoyldiphosphine oxide: manufactured by BASF) was used in the same manner as in Example 5.
- a photocurable resin composition (C5) was obtained.
- Example 6 In the same manner as in Example 5 except that the photopolymerization initiator initiator was replaced with the compound of Synthesis Example 1 and Speed Cure 1 DETX (2,4-Jetylthioxanthone: manufactured by LAMBSON) was used, the photocuring property was reduced. A fat composition (C6) was obtained.
- test results are shown in Table 1 (P3-4, Cl-3) and Table 2 (P5-6, C4-6).
- Each photocurable resin composition was set in a UV rheometer (ViscoAnalyserl00: REOLOGICA Instruments AB) and a measurement cone system (10 mm ⁇ ).
- the light energy required for curing was measured by irradiating light (ultraviolet light and visible light) in a wavelength range of 370 nm to 450 nm with a light intensity at 405 nm of 3 mW / cm 2 .
- Each photocurable resin composition (10 mg) was weighed and sealed in 10 mL of noorbin. From the bottom of the vial, using an ultraviolet irradiation device (manufactured by Toshiba), light (ultraviolet light and visible light) with a wavelength of 370 to 450 nm using an ultraviolet ray + heat ray cut filter is applied at an illumination intensity of lOOmW / cm 2 at 2000mi / cm Photocuring was performed by irradiation with light energy of 2 . Then headspace (HP7694: made by Hewlet Packard) 120. The mixture was heated at C for 5 minutes, and outgas measurement was performed by GC (HP-6890: Hewlet Packard). The outgas amount was measured in ppm in terms of toluene.
- an ultraviolet irradiation device manufactured by Toshiba
- light ultraviolet ray + heat ray cut filter
- Each photocurable resin composition was applied on a Teflon (registered trademark) substrate using a 100 m ablator.
- the coating film under a nitrogen atmosphere, using a UV + heat ray cut filter, the light of the wavelength range of 370Nm ⁇ 450nm (ultraviolet light and visible light), the 100 mW / cm 2 at irradiance, 2000 mJ / cm 2 Photocuring was performed by irradiating with light energy. After that, heat treatment was performed in an oven at 120 ° C for 60 minutes in a nitrogen atmosphere to prepare a 100-m cured film adhesive.
- the prepared cured product (0. lg) and methanol (10 g) are put into a lOOmL volumetric flask and extracted in an oil bath at 80 ° C for 1 hour, and the elution amount of unreacted photopolymerization initiator is LC. -MS (LCMS—2010: manufactured by Shimadzu Corporation). The amount of elution was calculated in ppm based on the calibration curve prepared with each photopolymerization initiator.
- a pair of similar glasses was laminated to the cross.
- a UV irradiation device manufactured by Toshiba using a UV ray + heat ray cut filter, light with a wavelength in the range of 370 nm to 450 nm (long wavelength ultraviolet light and visible light) is 100 mW / cm 2 and 2000 mJ / cm 2 Irradiated and photocured. Furthermore, in a nitrogen atmosphere 120 in the oven. C. Heated for 60 minutes.
- Adhesive strength measurement test In the same manner as in 4., an adhesive test piece was prepared. The obtained adhesion test piece was stored in a pressure and tacker test (ETAC PLAMOUNT PM422: manufactured by Enomoto Kasei Co., Ltd.) at a temperature of 121 ° C, humidity of 100% and pressure of 2. 1 atm. Using the tensile tester (model 210: manufactured by Intesco), the plane tensile strength of the obtained test piece was measured at a pulling speed of 2 mmZ.
- the photocurable resin compositions (P3 and P4) obtained in Examples 3 and 4 have long wavelength ultraviolet light and visible light having a wavelength of 370 to 450 nm. Curability at is very good. In addition, the amount of unreacted photopolymerization initiator eluted from the cured product with extremely small outgas components is small, and the adhesive strength is high.
- C1 obtained in Comparative Example 1 uses oligomeric a-hydroxyacetophenone as a photopolymerization initiator, and outgas and elution amount are relatively small, but photocurability is inferior and adhesive strength is low. Does not develop.
- C2 and C3 obtained in Comparative Example 2 and Comparative Example 3 have good photocurability, but have a large amount of outgas or a large amount of unreacted photopolymerization initiator.
- the photocurable resin compositions (P5 and P6) obtained in Examples 5 and 6 have long wavelength ultraviolet light and visible light having a wavelength of 370 to 450 nm. Curability at is very good. In addition, the amount of unreacted photopolymerization initiator eluted from the cured product with extremely small outgas components is small, and the adhesive strength is high.
- C4 obtained in Comparative Example 4 uses oligomeric ⁇ -hydroxyacetophenone as a photopolymerization initiator and has a relatively small outgas and elution amount, but is inferior in photocurability.
- C5 and C6 obtained in Comparative Example 5 and Comparative Example 6 have a good photocurability, a large amount of outgas, or a large amount of unreacted photopolymerization initiator.
- the present invention relates to a photopolymerization initiator having a low outgassing property and excellent sensitivity to ultraviolet light and visible light, and a photocurable resin composition having a low outgassing property and a high adhesive force. It can be used in the field of display materials.
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Description
Claims
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JP2007551964A JP5112883B2 (ja) | 2005-12-27 | 2006-12-25 | アントラキノン誘導体を含む光硬化性樹脂組成物 |
CN2006800496918A CN101351482B (zh) | 2005-12-27 | 2006-12-25 | 含蒽醌衍生物的光固化性树脂组合物 |
US12/159,130 US7892388B2 (en) | 2005-12-27 | 2006-12-25 | Photocurable resin composition containing anthraquinone derivative |
HK09105792.0A HK1128297A1 (en) | 2005-12-27 | 2009-06-26 | Photocurable resin composition containing anthraquinone derivative |
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JP (2) | JP5112883B2 (ja) |
KR (1) | KR101011613B1 (ja) |
CN (2) | CN101351482B (ja) |
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JP2009179531A (ja) * | 2008-01-31 | 2009-08-13 | Sekisui Chem Co Ltd | 合わせガラス用中間膜、及び、合わせガラス |
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WO2012011220A1 (ja) * | 2010-07-20 | 2012-01-26 | 日本化薬株式会社 | 液晶シール剤及びそれを用いた液晶表示セル |
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JP2013057064A (ja) * | 2005-12-27 | 2013-03-28 | Mitsui Chemicals Inc | アントラキノン誘導体、およびアントラキノン誘導体を含む光硬化性樹脂組成物 |
WO2017002362A1 (ja) * | 2015-06-30 | 2017-01-05 | 三井化学株式会社 | 光硬化性樹脂組成物、表示素子シール剤、液晶シール剤、液晶表示パネル及び液晶表示パネルの製造方法 |
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WO2016153592A1 (en) * | 2015-03-20 | 2016-09-29 | Henkel IP & Holding GmbH | Photoinitiators that are polymeric or polymerizable for use in uv curable pressure sensitive adhesives |
US20210207004A1 (en) | 2016-01-22 | 2021-07-08 | Cemedine Co., Ltd. | Photocurable composition and product |
US11384169B2 (en) * | 2016-08-26 | 2022-07-12 | Sharp Kabushiki Kaisha | Sealant composition, liquid crystal cell, and method of producing liquid crystal cell |
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JP2012134446A (ja) * | 2010-11-30 | 2012-07-12 | Jnc Corp | 光ナノインプリント用硬化性組成物および硬化性組成物から得られた硬化膜 |
WO2017002362A1 (ja) * | 2015-06-30 | 2017-01-05 | 三井化学株式会社 | 光硬化性樹脂組成物、表示素子シール剤、液晶シール剤、液晶表示パネル及び液晶表示パネルの製造方法 |
JP6127223B1 (ja) * | 2015-06-30 | 2017-05-10 | 三井化学株式会社 | 光硬化性樹脂組成物、表示素子シール剤、液晶シール剤、液晶表示パネル及び液晶表示パネルの製造方法 |
KR20180011224A (ko) | 2015-06-30 | 2018-01-31 | 미쓰이 가가쿠 가부시키가이샤 | 광경화성 수지 조성물, 표시 소자 실링제, 액정 실링제, 액정 표시 패널 및 액정 표시 패널의 제조 방법 |
WO2017130594A1 (ja) * | 2016-01-25 | 2017-08-03 | 三井化学株式会社 | 光硬化性樹脂組成物、表示素子シール剤、液晶表示素子シール剤、及び液晶表示パネルとその製造方法 |
JP2017134124A (ja) * | 2016-01-25 | 2017-08-03 | 三井化学株式会社 | 光硬化性樹脂組成物、表示素子シール剤及び液晶表示パネル |
KR20180082530A (ko) | 2016-01-25 | 2018-07-18 | 미쓰이 가가쿠 가부시키가이샤 | 광경화성 수지 조성물, 표시 소자 실링제, 액정 표시 소자 실링제, 및 액정 표시 패널과 그의 제조 방법 |
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CN101351482A (zh) | 2009-01-21 |
JP2013057064A (ja) | 2013-03-28 |
TWI351580B (en) | 2011-11-01 |
KR20080077649A (ko) | 2008-08-25 |
US7892388B2 (en) | 2011-02-22 |
HK1128297A1 (en) | 2009-10-23 |
CN102050930A (zh) | 2011-05-11 |
TW200728907A (en) | 2007-08-01 |
JPWO2007074782A1 (ja) | 2009-06-04 |
KR101011613B1 (ko) | 2011-01-27 |
CN101351482B (zh) | 2011-01-12 |
JP5611298B2 (ja) | 2014-10-22 |
US20090173438A1 (en) | 2009-07-09 |
CN102050930B (zh) | 2012-07-25 |
JP5112883B2 (ja) | 2013-01-09 |
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