WO2018088713A1 - 경화성 조성물 - Google Patents
경화성 조성물 Download PDFInfo
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- WO2018088713A1 WO2018088713A1 PCT/KR2017/011597 KR2017011597W WO2018088713A1 WO 2018088713 A1 WO2018088713 A1 WO 2018088713A1 KR 2017011597 W KR2017011597 W KR 2017011597W WO 2018088713 A1 WO2018088713 A1 WO 2018088713A1
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
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- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/08—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polysiloxanes
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
- C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C08L75/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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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
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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
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Definitions
- the present application relates to curable compositions and uses thereof.
- the silicone composition has low hydrophobicity because the polydimethylsiloxane chain constituting the main skeleton has strong hydrophobicity. Therefore, when exposed to a high temperature and high humidity environment there is a problem that the introduced phase separation occurs at room temperature and haze occurs.
- the problem of the present application relates to a curable composition having excellent physical properties such as adhesive durability as well as maintaining transparency even in a high temperature and high humidity environment, and a display filler using the curable composition.
- the present application relates to a curable composition that can solve the above problems.
- the curable composition of the present application may include a curable component and a hydroxyl group-containing component.
- the curable component may comprise a reactive silicone oligomer.
- the hydroxyl group-containing component may include a non-reactive silicone oligomer having a hydroxyl group.
- the curable composition may include 20 to 70 parts by weight of the reactive silicone oligomer.
- the curable composition may include 20 to 70 parts by weight of the hydroxyl group-containing non-reactive silicone oligomer.
- the hydroxyl group-containing component may have a hydroxyl value (OH value) of 2 to 45 mgKOH / g.
- the curable composition is based on the silicone oligomer, there are few problems due to shrinkage and yellowing, and the hydroxyl-containing component can increase the moisture content, thereby reducing the haze even in a high temperature and high humidity environment.
- the haze after curing of the curable composition may be 1.0% or less. Specifically, the haze may be 0.8% or less, 0.6% or less, or 0.4% or less. Therefore, the curable composition can ensure excellent transparency even in a high temperature and high humidity environment.
- the haze can be measured by Measurement Example 5. High-temperature, high-humidity haze measurement described later. Specifically, the haze was stored for 1 hour at 25 °C temperature and 50% relative humidity after storing the cured composition cured to a thickness of 150 ⁇ m 1000 hours at 85 °C temperature and 85% relative humidity to ASTM D1003 standard It can be measured.
- the reactive silicone oligomer may include a compound including a polysiloxane skeleton and including one or more curable functional groups.
- the said curable functional group can illustrate a (meth) acryl group, for example.
- the reactive silicone oligomer may comprise polysiloxane urethane (meth) acrylate.
- the polysiloxane urethane (meth) acrylate may include a polysiloxane skeleton and include one or more (meth) acryl groups at its ends through urethane bonds.
- (meth) acrylate may mean acrylate or methacrylate, and the (meth) acryl group may mean an acrylic group or a methacrylate group.
- the reactive silicone oligomer may have no hydroxyl group.
- the polysiloxane may be, for example, polydialkylsiloxane, and more specifically, polydimethylsiloxane.
- the polysiloxane urethane (meth) acrylate may be a urethane reactant of hydroxyl group-containing polysiloxane, polyfunctional isocyanate and hydroxyl group-containing (meth) acrylate.
- the hydroxyl group-containing compound may mean a compound having one or more hydroxyl groups at its terminals.
- the hydroxyl group-containing polysiloxane may have one or more hydroxyl groups at the terminal.
- the hydroxyl group-containing polysiloxane may be, for example, a compound represented by the following formula (1).
- R 1 and R 3 are each independently a hydrocarbon group or an organic group including a hetero atom or an ether group
- R 2 is each independently an alkyl group, a cycloalkyl group or a phenyl group
- a is an integer of 10 or more
- b, c are each independently an integer of 0 to 3
- the sum of b and c is 1 or more.
- the hydrocarbon group may be, for example, a hydrocarbon group having 1 to 100 carbon atoms, specifically, 1 to 25 carbon atoms, more specifically, a hydrocarbon group having 1 to 5 carbon atoms, and may be a divalent or trivalent hydrocarbon group.
- a bivalent hydrocarbon group an alkylene group can be illustrated, for example.
- carbon number of an alkylene group 1-10 are preferable, Especially preferably, it is C1-C4,
- an ethylene group, a propylene group, tetramethylene group, etc. can be illustrated.
- an oxyalkylene group As an organic group containing the said hetero atom, an oxyalkylene group, a polyoxyalkylene group, a polycaprolactone group, an amino group etc. can be illustrated, for example.
- an organic group containing the said ether group an ethyl ether group etc. can be illustrated.
- R 2 may be each independently an alkyl group, a cycloalkyl group, or a phenyl group.
- the alkyl group may be, for example, an alkyl group having 1 to 15 carbon atoms, specifically, 1 to 10 carbon atoms, more specifically, 1 to 4 carbon atoms.
- a methyl group, an ethyl group, a propyl group, a butyl group, and the like are preferable. Especially preferably, it is a methyl group.
- the cycloalkyl group may be, for example, a cycloalkyl group having 3 to 10 carbon atoms, specifically, 5 to 8 carbon atoms, and examples thereof include a cyclopentyl group, a cyclohexyl group, a norbornyl group, and the like.
- the said alkyl group, a cycloalkyl group, and a phenyl group may have a substituent.
- a substituent a halogen atom, a hydroxyl group, an alkoxy group, an amino group, a mercapto group, a sulfanyl group, a vinyl group, an acryloxy group, methacryl oxy group, an aryl group, heteroaryl group, etc. are mentioned, for example.
- a is an integer of 10 or more, specifically, may be an integer of 30 to 200, more specifically 40 to 120.
- b and c are each independently integers of 0 to 3, and the sum of b and c may be 1 or more, for example, b and c may be 1, respectively.
- hydroxyl-containing polysiloxane specifically, as a compound which has a hydroxyl group at the terminal of polysiloxane, such as polydimethylsiloxane, polydiethylsiloxane, polymethylphenylsiloxane,
- polydimethylsiloxane which has a hydroxyl group at the terminal can be used. have.
- polydimethylsiloxane which has a hydroxyl group at the terminal
- polydimethylsiloxane monool which has one hydroxyl group at the one end
- polydimethylsiloxane diol which has two hydroxyl groups at the one end
- hydroxyl groups at both ends The polydimethylsiloxane diol etc. which have one by one can be illustrated.
- a polydimethylsiloxane monool which has one hydroxyl group at one end X-22-4015 (made by Shin-Etsu Chemical Co., Ltd.), Silaplane FM-0411, FM-0412, FM-0425 (nitrogen (note) ))
- Silaplane FM-DA11, FM-DA12, FM-DA25 made by Nippon Corporation
- polydimethylsiloxane diol which has one hydroxyl group at both ends As a polydimethylsiloxane monool which has one hydroxyl group at one end, X-22-4015 (made by Shin-Etsu Chemical Co., Ltd.), Silaplane FM-0411, FM-0412, FM-0425 (nitrogen (note) )))
- siaplane FM-DA11, FM-DA12, FM-DA25 made by Nippon Corporation
- polydimethylsiloxane diol which has one hydroxyl group at both ends As a polydimethylsiloxane mono
- Examples include X-22-160 AS, KF-6001, KF-6002, KF-6003 (manufactured by Shin-Etsu Chemical Co., Ltd.), Silaplane FM-4411, FM-4412, FM-4425 (manufactured by Nitrogen Co., Ltd.), Macromonomer-HK-20 (made by Dong-A Synthetic Co., Ltd.) etc. can be illustrated.
- polyfunctional isocyanate the compound which has at least 2 isocyanate group can be used.
- polyfunctional isocyanate hexamethylene diisocyanate [HDI], isophorone diisocyanate [IPDI], methylenebis (4-cyclohexyl isocyanate) [H12MDI], trimethyl hexamethylene diisocyanate [TMHMDI], tolylene diisocyanate Diisocyanate, such as [TDI], 4, 4- diphenylmethane diisocyanate [MDI], xylene diisocyanate [XDI], etc.
- HDI hexamethylene diisocyanate
- IPDI isophorone diisocyanate
- H12MDI methylenebis (4-cyclohexyl isocyanate)
- TSHMDI trimethyl hexamethylene diisocyanate
- Diisocyanate such as [TDI], 4, 4- diphenylmethane diisocyanate [MDI],
- the adduct body which modified the diisocyanate into trimetholpropane, the trimer (isocyanurate) of diisocyanate, the burette body by reaction of diisocyanate and water, etc. can be used 1 type, or in combination of 2 or more types. Can be.
- hydroxyl group-containing (meth) acrylate hydroxy alkyl (meth) acrylate can be used.
- hydroxyl-containing (meth) acrylate 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxy butyl (meth) acrylate, 4-hydroxy, for example Hydroxyalkyl (meth) acrylates, such as hydroxy butyl (meth) acrylate and 6-hydroxyhexyl (meth) acrylate, 2-hydroxy ethyl acryloyl phosphate, 2- (meth) acryloyl oxyethyl- 2-hydroxypropyl phthalate, caprolactone modified 2-hydroxy ethyl (meth) acrylate, dipropylene glycol (meth) acrylate, fatty acid modified-glycidyl (meth) acrylate, polyethylene glycol mono (meth) acrylate , Polypropylene glycol mono (meth) acrylate,
- the reactive silicone oligomer may have one or two or more curable functional groups at its ends. More specifically, the reactive silicone oligomer may have 1 to 6, 1 to 4 or 1 to 3 curable functional groups at the terminal. In the present specification, a reactive silicone oligomer having n curable functional groups at its terminals may be referred to as an n functional silicone oligomer.
- the n functional silicone oligomer when the reactive silicone oligomer includes polysiloxane urethane (meth) acrylate, the n functional silicone oligomer will refer to a compound having n (meth) acrylic groups through the urethane skeleton in the polysiloxane skeleton. Can be.
- the curable component may comprise a silicone oligomer having any one specified number of curable functional groups, or may be a mixture of reactive silicone oligomers having different numbers of curable functional groups.
- the curable component may be a mixture of monofunctional silicone oligomers and bifunctional silicone oligomers.
- the modulus may be too high, and when the monofunctional silicone oligomer alone is included, cohesive force may be lowered to weaken the adhesion durability. Therefore, when using the mixture of a monofunctional silicone oligomer and a bifunctional silicone oligomer, the general characteristic as a curable composition can be improved.
- the curable component may further include a trifunctional or higher functional silicone oligomer.
- the curable composition may include a reactive silicone oligomer in a ratio of 20 to 70 parts by weight.
- the curable component is a mixture of monofunctional silicone oligomer and bifunctional silicone oligomer
- the monofunctional silicone oligomer may be included in a ratio of 20 to 500 parts by weight with respect to 100 parts by weight of the bifunctional silicone oligomer.
- the curable component further includes a trifunctional or higher functional silicone oligomer
- the trifunctional or higher functional silicone oligomer may be included in a ratio of 2 to 50 parts by weight with respect to 100 parts by weight of the bifunctional oligomer.
- the weight average molecular weight of the reactive silicone oligomer may be, for example, 10,000 to 100,000, specifically 10,000 to 80,000, more specifically, 10,000 to 70,000.
- the weight average molecular weight of the reactive silicone oligomer satisfies the above range, it is possible to provide a curable composition having excellent transparency, heat resistance and adhesion.
- the weight average molecular weight may mean a value of standard polystyrene conversion measured by gel permeation chromatography (GPC) method.
- the aqueous phase-containing component included in the curable composition may have a hydroxyl value (OH value) of 2 to 45 mgKOH / g. More specifically, the hydroxyl group-containing component may have a hydroxyl value (OH value) of 4 to 40 mgKOH / g.
- the curable composition may increase the moisture content through the hydroxyl group-containing component, thereby reducing haze generation in a high temperature and high humidity environment, thereby ensuring transparency.
- the hydroxyl group-containing component may include a non-reactive silicone oligomer having a hydroxyl group.
- a non-reactive silicone oligomer may refer to a compound that includes a polysiloxane skeleton and does not include a curable functional group.
- the said curable functional group can illustrate a (meth) acryl group, for example.
- the non-reactive silicone oligomer may have one or more hydroxyl groups at the ends.
- the non-reactive silicone oligomer may serve as a diluent in the curable composition.
- the heat resistance may be further improved by reducing the (meth) acrylic group in the heat resistance improving system to suppress decomposition reaction of the ester group due to heat.
- the curable composition may include a non-reactive silicone oligomer having the hydroxyl group in a ratio of 20 to 70 parts by weight.
- a non-reactive silicone oligomer having the hydroxyl group in a ratio of 20 to 70 parts by weight.
- the curable composition contains a small amount of the non-reactive silicone oligomer, not only the modulus and viscosity are significantly increased, but also the haze may be increased in a high temperature and high humidity environment.
- the curable composition includes an excessive amount of the non-reactive silicone oligomer having the hydroxyl group, not only the modulus and viscosity are significantly reduced, but also the adhesion durability may be lowered.
- the non-reactive silicone oligomer may comprise at least one oligomer of non-reactive polysiloxane oligomer and non-reactive polysiloxane modified urethane oligomer.
- oligomer when not specifically defined as a urethane oligomer may mean an oligomer that does not contain a urethane bond.
- the non-reactive silicone oligomer may be a non-reactive polysiloxane oligomer.
- Such oligomers may be represented by the following formula (2).
- R 4 and R 6 are each independently a hydrocarbon group or an organic group including a hetero atom, an ether group or a hydroxyl group
- R 5 is each independently an alkyl group, a cycloalkyl group or a phenyl group
- n is an integer of 10 or more
- At least one of R 4 and R 6 is a hydroxyl group.
- non-reactive polysiloxane oligomer for example, FM-0411, FM-0421, FM-0425, FMDA11, FM-DA21, FM-DA26, FM-4411, FM-4421, FM-4425 (Chisso), DMS -T00, DMS-T01, DMS-T02, DMS-T03, DMS-T05, DMS-T07, DMS-T11, DMS-T 12, DMS-T 15, DMS-T 21, DMS-T 22, 23, DMS -T25, DMS-T31, DMS-T 35, DMS-T 41, DMS-T 43, DMS-T 46, DMS-T 51, DMS-T53, DMS-T 56, PDM-0421, PDM-0821, PDM -1922, PMM-1015, PMM-1025, PMM-1043, PMM-5021, PMM-0011, PMM-0021, PMM-0025 (Gelest), X-22-4039, X-22-4015
- KF-6003, KF-6004, X-22-4952, X-22-4272, KF-6123, X-21-5841, KF-9701, X-22-170BX, X-22-170DX, X-22- Silicone Oil or Silicone fluid products such as 176DX, X-22-176F, X-22-176GX-A, KF-6011, KF-6012, KF-6015, and KF-6017 (Shinetsu) can be used.
- the non-reactive silicone oligomer may be a non-reactive polysiloxane modified urethane oligomer.
- Such oligomers include polysiloxane backbones and urethane bonds and may have one or more hydroxyl groups at the ends.
- the oligomer may have an alkyl group through a urethane bond at a terminal having no hydroxyl group.
- Such oligomers include hydroxyl group-containing polysiloxanes; Polyfunctional isocyanates; And urethane reactants of monomers containing hydroxyl groups.
- the hydroxyl group-containing polysiloxane may be a compound represented by the following formula (1).
- R 1 and R 3 are each independently a hydrocarbon group or an organic group including a hetero atom or an ether group
- R 2 is each independently an alkyl group, a cycloalkyl group or a phenyl group
- a is an integer of 1 or more
- 10 b and c are each independently an integer of 0 to 3
- the sum of b and c is 1 or more.
- the monomer containing a hydroxyl group may have an alkyl group and / or an ether group at the terminal which does not have the said hydroxyl group.
- the monomer containing a hydroxyl group has an alkyl group having 1 to 12 carbon atoms. Or it may have a C1-C12 alkoxy group.
- the weight average molecular weight (Mw) of the non-reactive silicone oligomer may be 1,000 to 50,000.
- Mw weight average molecular weight
- the hydroxyl group-containing component may further include a hydroxyl group-containing reactive monomer.
- the curable composition may include 1 to 30 parts by weight of the hydroxyl group-containing reactive monomer.
- the hydroxyl group-containing reactive monomer may exemplify hydroxyalkyl (meth) acrylate or hydroxyalkylene glycol (meth) acrylate.
- Specific examples of the hydroxyl group-containing reactive monomers include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) Hydroxyalkyl (meth) acrylates such as acrylate or 8-hydroxyoctyl (meth) acrylate, or 2-hydroxyethylene glycol (meth) acrylate or 2-hydroxypropylene glycol (meth) acrylate Hydroxyalkylene glycol (meth) acrylate etc. can be illustrated.
- the curable composition may further comprise an initiator.
- an initiator a photoinitiator or a thermal polymerization initiator can be used.
- a photopolymerization initiator may be used as the initiator, for example, an ultraviolet polymerization initiator or a visible light polymerization initiator may be used.
- an ultraviolet polymerization initiator a benzoin system, a benzophenone system, an acetophenone system, etc.
- a visible light polymerization initiator For example, an acyl phosphine oxide type, a thioxanthone type, a metallocene type, a qui Non-based, ⁇ -aminoalkylphenone, etc. may be used, but is not limited thereto.
- the initiator may be included in a ratio of 1 to 10 parts by weight based on 100 parts by weight of the curable composition, which may be appropriately adjusted as necessary.
- the curable composition may further comprise a silane coupling agent.
- the silane coupling agent can improve the adhesion and adhesion stability, improve heat resistance and moisture resistance, and can improve the adhesion reliability even when left for a long time in harsh conditions.
- As the silane coupling agent for example, ⁇ -glycidoxypropyl triethoxy silane, ⁇ -glycidoxypropyl trimethoxy silane, ⁇ -glycidoxypropyl methyldiethoxy silane, ⁇ -glycidoxypropyl tri Ethoxy silane, 3-mercaptopropyl trimethoxy silane, vinyltrimethoxysilane, vinyltriethoxy silane, ⁇ -methacryloxypropyl trimethoxy silane, ⁇ -methacryloxy propyl triethoxy silane, ⁇ - Aminopropyl trimethoxy silane, (gamma) -aminopropyl triethoxy silane, etc. can be used, One type or
- the curable composition may further comprise an antioxidant.
- the antioxidant may be included in the ratio of 0.01 to 5 parts by weight, and more specifically in the ratio of 0.01 to 3 parts by weight based on 100 parts by weight of the curable composition, which may be appropriately adjusted as necessary.
- the curable composition may further include known additives such as elastomers, curing agents, plasticizers, fillers, colorants, UV stabilizers, colorants, reinforcing agents, antifoaming agents, surfactants, or crystals.
- additives such as elastomers, curing agents, plasticizers, fillers, colorants, UV stabilizers, colorants, reinforcing agents, antifoaming agents, surfactants, or crystals.
- the elastic modulus after curing of the curable composition may be 10,000 Pa to 100,000 Pa at 1 Hz, specifically 10,000 Pa to 80,000 Pa, 10,000 Pa to 60,000 Pa, and more specifically 10,000 Pa to 40,000 Pa. .
- the elastic modulus may be measured by Measurement Example 2. Modulus measurement described below. When the elastic modulus of the curable composition is in the above range, physical properties suitable for use as a filler for a display device may be realized.
- the viscosity at 1 Hz and 25 ° C. of the curable composition may be between 1,000 cp and 10,000 cp. Specifically, the viscosity at 1 Hz and 25 ° C. of the curable composition may be between 3,000 cp and 6,000 cp.
- the viscosity can be measured by Measurement Example 3. Viscosity measurement described below.
- the present application also relates to the use of the curable composition.
- the present application relates to a filler comprising a cured product of the curable composition. Since the curable composition is excellent in transparency, heat resistance and adhesion, it may be usefully used as a display filler.
- the cured product may mean a material in a cured state.
- the curing may refer to a process in which the composition expresses adhesiveness or tackiness through physical or chemical action or reaction of components included in the composition.
- Curing of the curable composition may be performed by a process of maintaining the composition at an appropriate temperature or by irradiating an appropriate active energy ray so that curing of the curable component may proceed. If the maintenance at the appropriate temperature and the irradiation of the active energy ray is required at the same time, the process can be carried out sequentially or simultaneously.
- irradiation of the active energy ray may be performed using, for example, a high pressure mercury lamp, an electrodeless lamp, or a xenon lamp, and the like.
- the curing may be selected in a range that can be appropriately made.
- curing of the curable composition may be performed by irradiating ultraviolet light in the wavelength range of about 150 nm to 450 nm at 1000 mJ / cm 2 to 6000 mJ / cm 2 light amount, but this may be appropriately adjusted as necessary.
- the thickness after curing of the curable composition that is, the thickness of the cured product may be 10 ⁇ m to 500 ⁇ m, specifically 100 ⁇ m to 300 ⁇ m, which may be appropriately adjusted as necessary.
- the present application relates to a display device including at least one air gap between optical members, and including a cured product of the curable composition filling the air gap.
- 1 exemplarily illustrates the display device.
- the display device includes a space between the touch panel 20 and the display panel 30 spaced apart by the spacer 10, a so-called air gap, and the cured product 40 of the curable composition. This filling is shown by way of example.
- the structure and position of the air gap is not limited to FIG. 1, and the curable composition may be used for filling an air gap of various structures and positions of the optical member constituting the display device.
- Examples of the display device may include, but are not limited to, a liquid crystal display, an organic light emitting display, a plasma display, and the like.
- the curable composition may be usefully used for direct bonding between the optical members constituting the display device.
- 2 exemplarily shows the display device.
- the cured product 40 of the curable composition directly attaches the touch panel and the display panel. The case is shown by way of example.
- the curable composition may be usefully used for direct bonding between the display device and other optically functional members.
- an acrylic plate for example, a hard coating or an antireflective coating may be applied to one or both surfaces
- PC Polycarbonate
- examples include transparent plastic plates such as a) plate, a polyethylene terephthalate (PET) plate, and a polyethylene naphthalate (PEN) plate, and tempered glass (for example, a shatterproof film may be attached) or a touch panel input sensor.
- the cured product of the curable composition When the cured product of the curable composition is applied to the display device, other components constituting the display device or a method of constituting the device are not particularly limited, and any material known in the art as long as the cured product is used. Both methods may be employed.
- the present application may provide a curable composition having excellent physical properties such as adhesion durability as well as maintaining transparency even in a high temperature and high humidity environment.
- a curable composition may be usefully used for direct bonding between the filler of the display device and the optical member.
- FIG. 1 and 2 exemplarily illustrate a display device to which a cured product of the curable composition of the present application is applied.
- the hydroxyl values of the curable compositions of Examples and Comparative Examples were measured according to JIS K 155701 using AT-510 equipment manufactured by Kyoto Electonics.
- the hydroxyl value is the mg number of mg KOH (mgKOH / g) required to neutralize the acetic acid bound to the acetyl compound obtained from 1 g of polyol (a substance containing a plurality of hydroxyl group-containing components).
- the ultraviolet light in the wavelength range of 150 nm to 450 nm with a light amount of about 4000 mJ / cm 2 It hardened
- the storage elastic modulus (G ′) at 1 Hz was measured using an ARES-G2 Rheometer manufactured by TA instruments.
- Measurement mode frequency sweep mode
- curable compositions of Examples and Comparative Examples were measured at 1 Hz using an ARES-G2 Rheometer from TA instruments.
- Measurement mode frequency sweep mode
- Measurement Example 4 The sample of Measurement Example 4 was stored at 85 ° C. temperature and 85% relative humidity for 1000 hours and then left at 25 ° C. temperature and 50% relative humidity for 1 hour. Haze was measured at 25 ° C. temperature and 50% relative humidity with a turbidimeter ASTM D1003 standard using an NDH-5000 Haze meter manufactured by Nippon Denshoku.
- the curable compositions of Examples and Comparative Examples were applied between glasses and cured under the same conditions as in the modulus measurement.
- the cured product was cut to a diameter of 1.5 cm and a thickness of 200 ⁇ m to prepare a circular sample, and then left at 105 ° C. for 1000 hours.
- the adhesive force was measured while pulling up and down at a speed of 12.7 mm / min.
- the adhesion durability before and after the heat treatment was compared to determine the adhesion durability according to the following evaluation criteria.
- the flask was reacted with 350 g of polydimethylsiloxane diol of formula A (Silaplane FM-4411, Chisso), 112 g of isophorone diisocyanate (37.8% isocyanate group content) and 1 g of dibutyltin dilaurate at 60 ° C. for 5 hours. .
- 9.8 g of hydroxyethyl acrylate and 15.6 g of lauryl alcohol were added dropwise, and the reaction was continued as it was, and the reaction was terminated when the isocyanate group disappeared.
- non-reactive silicone urethane oligomer (B1) monohydroxypolysiloxane (FM-0411, Chisso Co., Ltd.) was prepared.
- the flask was reacted with 350 g of polydimethylsiloxane diol of formula A (Silaplane FM-4411, Chisso), 124.4 g of isophorone diisocyanate (37.8% isocyanate group content) and 1 g of dibutyltin dilaurate at 60 ° C. for 5 hours. .
- 52.2 g of lauryl alcohol was added dropwise to continue the reaction as it was, and the reaction was terminated when the isocyanate group disappeared.
- the sum of the curable oligomer and the diluent is 100 parts by weight, and the initiator (C1), the silane coupling agent (C2), and the antioxidant (C3) are combined in the ratios of Table 1 to Examples 1-4 and Comparative Examples 1-4.
- a curable composition was prepared.
- Example One 2 3 4 Modulus ( ⁇ 10 4 Pa) 2.5 3.4 5.9 2.9 Viscosity ( ⁇ 10 3 cp) 2.4 5.6 3.1 4.5 Receive Value (mgKOH / g) 11 4 39 40 Early haze 0.19 0.20 0.18 0.19 High temperature and high humidity haze 0.30 0.32 0.29 0.29 Adhesive durability ⁇ ⁇ ⁇ ⁇
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Abstract
Description
단위(중량부) | 실시예 | 비교예 | |||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | ||
경화성올리고머 | A1 | 30 | 30 | 40 | 40 | 45 | - | 40 | - |
A2 | 20 | 30 | 20 | 20 | 40 | 30 | 30 | 20 | |
A3 | - | - | 10 | - | - | - | - | - | |
희석제 | B1 | 50 | - | 20 | 10 | - | 30 | 5 | 75 |
B2 | - | 40 | - | 20 | 15 | - | - | - | |
B3 | - | - | 10 | 10 | - | 40 | - | 5 | |
B4 | - | - | - | - | - | - | 25 | - | |
첨가제 | C1 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
C2 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | |
C3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
A1: 1 관능성 실리콘 올리고머 (Mw: 4만)A2: 2 관능성 실리콘 올리고머 (Mw: 7만)A3: 3 관능성 실리콘 올리고머 (Mw: 1만)B1: 비반응성 실리콘 올리고머 (Mw: 1만)B2: 비반응성 실리콘 우레탄 올리고머 (Mw: 1만)B3: 히드록시뷰틸 메트아크릴레이트 B4: 라우릴 아크릴레이트C1: 개시제(Irgacure 184, BASF사)C2: 실란커플링제(KBM-403, Shin-Etsu사)C3: 산화방지제(Irganox 1010, BASF사) |
실시예 | ||||
1 | 2 | 3 | 4 | |
모듈러스 (× 104 Pa) | 2.5 | 3.4 | 5.9 | 2.9 |
점도 (× 103 cp) | 2.4 | 5.6 | 3.1 | 4.5 |
수신가 값 (mgKOH/g) | 11 | 4 | 39 | 40 |
초기 헤이즈 | 0.19 | 0.20 | 0.18 | 0.19 |
고온고습 헤이즈 | 0.30 | 0.32 | 0.29 | 0.29 |
접착 내구성 | ○ | ○ | ○ | ○ |
비교예 | ||||
1 | 2 | 3 | 4 | |
모듈러스 (× 104 Pa) | 8.7 | 5.6 | 4.8 | 0.8 |
점도 (× 103 cp) | 12 | 1.2 | 5.3 | 0.5 |
수신가 값 (mgKOH/g) | 1.6 | 148 | 1.1 | 34 |
초기 헤이즈 | 0.20 | 2.5 | 0.20 | 0.21 |
고온고습 헤이즈 | 1.9 | 4.8 | 2.3 | 0.32 |
접착 내구성 | ○ | ○ | ○ | X |
Claims (15)
- 반응성 실리콘 올리고머 20 내지 70 중량부를 포함하는 경화성 성분 및수산기를 가지는 비반응성 실리콘 올리고머 20 내지 70 중량부를 포함하고, 수산기 값(OH value)이 2 내지 45 mgKOH/g인 수산기 함유 성분을 포함하는 경화성 조성물.
- 제 1 항에 있어서,상기 경화성 조성물을 두께 150 ㎛로 경화한 시편을 85℃ 온도 및 85%의 상대습도에서 1000 시간 보관 후 25℃ 온도 및 50% 상대 습도에서 1시간 방치하여 탁도계 ASTM D1003 규격으로 측정한 헤이즈가 1.0% 이하인 경화성 조성물.
- 제 1 항에 있어서,상기 반응성 실리콘 올리고머는 폴리실록산계 우레탄 (메타) 아크릴레이트를 포함하는 경화성 조성물.
- 제 1 항에 있어서,상기 반응성 실리콘 올리고머는 1 관능 실리콘 올리고머 및 2 관능 실리콘 올리고머를 포함하는 경화성 조성물.
- 제 4 항에 있어서,상기 반응성 실리콘 올리고머는 3 관능 이상의 실리콘 올리고머를 더 포함하는 경화성 조성물.
- 제 1 항에 있어서,상기 반응성 실리콘 올리고머의 중량 평균 분자량 (Mw)은 10,000 내지 100,000인 경화성 조성물.
- 제 1 항에 있어서,상기 비반응성 실리콘 올리고머는 비반응성 폴리실록산 올리고머 및 비반응성 폴리실록산 변성 우레탄 올리고머 중 하나 이상의 올리고머를 포함하는 경화성 조성물.
- 제 1 항에 있어서,상기 비반응성 실리콘 올리고머의 중량 평균 분자량(Mw)은 1,000 내지 50,000인 경화성 조성물.
- 제 1 항에 있어서,상기 수산기 함유 성분은 수산기 함유 반응성 모노머 1 내지 30 중량부를 더 포함하는 경화성 조성물.
- 제 9 항에 있어서,상기 수산기 함유 반응성 모노머는 히드록시알킬 (메트) 아크릴레이트인 경화성 조성물.
- 제 1 항에 있어서,상기 경화성 조성물은 개시제, 실란 커플링제 또는 산화 방지제를 더 포함하는 경화성 조성물.
- 제 1 항에 있어서,상기 경화성 조성물의 경화 후 탄성 모듈러스는 1 Hz에서 10,000 Pa 내지 100,000 Pa인 경화성 조성물.
- 제 1 항에 있어서,상기 경화성 조성물의 1 Hz 및 25 ℃에서의 점도는 1,000 cP 내지 10,000 cP인 경화성 조성물.
- 광학 부재 사이의 적어도 하나의 에어 갭을 포함하고, 상기 에어 갭을 충진하는 제 1 항의 경화성 조성물의 경화물을 포함하는 디스플레이 장치.
- 디스플레이 패널과 터치 패널을 포함하는 디스플레이 장치이고,상기 디스플레이 패널과 터치 패널을 부착하는 제 1 항의 경화성 조성물의 경화물을 포함하는 디스플레이 장치.
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CN108779332B (zh) | 2021-06-22 |
EP3431551B1 (en) | 2020-12-02 |
EP3431551A1 (en) | 2019-01-23 |
KR102118395B1 (ko) | 2020-06-03 |
US20190077904A1 (en) | 2019-03-14 |
JP6795607B2 (ja) | 2020-12-02 |
TWI648302B (zh) | 2019-01-21 |
US10577452B2 (en) | 2020-03-03 |
EP3431551A4 (en) | 2019-05-01 |
TW201821463A (zh) | 2018-06-16 |
JP2019506515A (ja) | 2019-03-07 |
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