WO2017039159A1 - 저온 경화 조성물, 그로부터 형성된 경화막, 및 상기 경화막을 갖는 전자 장치 - Google Patents
저온 경화 조성물, 그로부터 형성된 경화막, 및 상기 경화막을 갖는 전자 장치 Download PDFInfo
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- WO2017039159A1 WO2017039159A1 PCT/KR2016/008430 KR2016008430W WO2017039159A1 WO 2017039159 A1 WO2017039159 A1 WO 2017039159A1 KR 2016008430 W KR2016008430 W KR 2016008430W WO 2017039159 A1 WO2017039159 A1 WO 2017039159A1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
- C08G59/306—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4078—Curing agents not provided for by the groups C08G59/42 - C08G59/66 boron containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
-
- 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
Definitions
- It relates to a low-temperature curable composition, a cured film formed therefrom, and an element having the cured film.
- the substrate itself must be a film of an unbreakable material, not glass that is fragile.
- an overcoat layer such as a touch screen panel (TSP) or an optically clear adhesive (OCA) optical layer for planarization is used on the OLED device or TFT, and the thickness of the overcoat layer is improved and the planarization is improved.
- TTP touch screen panel
- OCA optically clear adhesive
- noise and touch sensitivity between the TFT internal circuit and the touch sensor are important.
- the transmittance should be high for high brightness, and the dielectric constant should be low because the overcoat layer itself serves as an organic insulating layer.
- One embodiment is to provide a low temperature cure composition that cures at low temperatures, has high mechanical strength, high transmittance, low dielectric constant, and good chemical resistance and low outgassing.
- Another embodiment is to provide a cured film obtained by curing the composition.
- Another embodiment is to provide an electronic device including the cured film.
- One embodiment is (A) epoxy group-containing siloxane compound represented by the formula (1):
- R 1 to R 9 are each independently a substituted or unsubstituted C1 to C6 monovalent aliphatic hydrocarbon group, a substituted or unsubstituted C6 to C20 monovalent alicyclic hydrocarbon group, substituted or unsubstituted.
- An organic group independently selected from a substituted C6 to C20 monovalent aromatic hydrocarbon group, and an epoxy-substituted monovalent organic group, wherein at least one of R 1 to R 6 is an epoxy-substituted monovalent organic group, 0 ⁇ M ⁇ 1, 0 ⁇ D1 ⁇ 1, 0 ⁇ T1 ⁇ 1, 0 ⁇ D2 ⁇ 1, 0 ⁇ T2 ⁇ 1, M + D1 + T1 + D2 + T2 1, wherein M, D1, T1,
- the structural units represented by D2 and T2 may each include one or more different structural units); And
- a low temperature curing composition wherein the compound represented by Formula 1 is a combination of a siloxane compound having a number average molecular weight of 100 to 1,000 and a siloxane compound having a number average molecular weight of 1,000 to 10,000.
- the compound represented by Formula 1 is a mixture of 20 wt% or less of the siloxane compound having a number average molecular weight of 100 to 1,000, and 80 wt% or more of the siloxane compound having a number average molecular weight of 1,000 to 10,000.
- siloxane units of the compound represented by Formula 1 may have an epoxy-substituted organic group.
- the compound represented by Formula 1 may be 0 ⁇ M ⁇ 0.3, 0 ⁇ D1 ⁇ 0.7, 0.3 ⁇ T1 ⁇ 1, 0 ⁇ D2 ⁇ 0.7, 0 ⁇ T2 ⁇ 0.7.
- the epoxy-substituted monovalent organic group may be an epoxy-substituted monovalent aliphatic organic group, an epoxy-substituted monovalent alicyclic organic group, or an epoxy-substituted monovalent aromatic organic group.
- the epoxy-substituted monovalent aliphatic organic group may be one containing a glycidyl ether group or an oxetanyl ether group.
- the epoxy ring-opening cation thermal initiator may be represented by the following formula (2):
- R 10 to R 13 are each independently hydrogen, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C2 to C20 heteroaryl group, or a combination thereof Selected from
- X ⁇ is a borate anion
- R 10 to R 13 may each independently be hydrogen, a C1 to C4 alkyl group, or a C6 to C10 aryl group unsubstituted or substituted with an alkyl group of C1 to C4.
- the borate-based anion may be represented by the following Formula 3:
- R 26 to R 30 are each independently F, Cl, Br, or I.
- the epoxy ring-opening cationic thermal initiator may be included in the composition from about 0.01% to about 5% by weight.
- composition may further comprise a solvent.
- the composition may further include a polymerization inhibitor.
- the composition may be cured at a temperature of 100 or less.
- a cured film obtained by curing the composition is provided.
- the cured film may be an overcoat layer of an organic light emitting diode (OLED) device.
- OLED organic light emitting diode
- an electronic device having the cured film is provided.
- the low temperature curing composition according to the embodiment has a high mechanical strength by curing at a temperature of 100 or less, high transmittance, low dielectric constant, excellent chemical resistance, and low outgas generation, and thus can be usefully used as an overcoat layer of a flexible display. have.
- the composition can also obtain a process time shortening effect by fast curing at low temperatures.
- substituted means that at least one hydrogen atom is a halogen atom (F, Cl, Br, I), hydroxy group, C1 to C20 alkoxy group, nitro group, cyano group, amino group, imino group, azi Pottery, amidino, hydrazino, hydrazono, carbonyl, carbamyl, thiol, ester, carboxyl or salts thereof, sulfonic acid groups or salts thereof, phosphoric acid or salts thereof, C1 to C20 alkyl groups, C2 to C20 alkenyl group, C2 to C20 alkynyl group, C6 to C20 aryl group, C3 to C20 cycloalkyl group, C3 to C20 cycloalkenyl group, C3 to C20 cycloalkynyl group, C2 to C20 heterocycloalkyl group, C2 to C20 heterocyclo It means substituted with an alkenyl group
- hetero means that at least one hetero atom of N, O, S, and P is included in a chemical formula.
- (meth) acrylate means that both “acrylate” and “methacrylate” are possible
- (meth) acrylic acid means “acrylic acid” and “methacrylic acid”.
- One embodiment is (A) epoxy group-containing siloxane compound represented by the formula (1):
- R 1 to R 9 are each independently a substituted or unsubstituted C1 to C6 monovalent aliphatic hydrocarbon group, a substituted or unsubstituted C6 to C20 monovalent alicyclic hydrocarbon group, substituted or unsubstituted.
- An organic group independently selected from a substituted C6 to C20 monovalent aromatic hydrocarbon group, and an epoxy-substituted monovalent organic group, wherein at least one of R 1 to R 6 is an epoxy-substituted monovalent organic group, 0 ⁇ M ⁇ 1, 0 ⁇ D1 ⁇ 1, 0 ⁇ T1 ⁇ 1, 0 ⁇ D2 ⁇ 1, 0 ⁇ T2 ⁇ 1, M + D1 + T1 + D2 + T2 1, wherein M, D1, T1,
- the structural units represented by D2 and T2 may each include one or more different structural units); And
- a low temperature curing composition wherein the compound represented by Formula 1 is a combination of a siloxane compound having a number average molecular weight of 100 to 1,000 and a siloxane compound having a number average molecular weight of 1,000 to 10,000.
- an interlayer insulating film is used to insulate the wirings arranged between the layers.
- the interlayer insulating film is manufactured through a series of processes such as application, prebaking, exposure, development, and post bake of the photosensitive resin composition.
- Conventional negative interlayer insulating films are composed of a binder, a reactive unsaturated compound, a photopolymerization initiator, a solvent, and the like, and the binder includes an olefinically unsaturated compound to manage heat resistance of the interlayer insulating film.
- the existing olefinically unsaturated compounds have a curing temperature of 150 ° C. or higher and low temperature curing of 100 ° C. or lower cannot be applied to the flexible display manufacturing process. Accordingly, there is a need for developing a binder and a curing system that can be cured at a significantly lower temperature than the conventional organic film, and are easily synthesized and easily supplied.
- the present invention is completed by finding that a cured film having high mechanical strength while curing at low temperature, at the same time, having high transmittance and low dielectric constant, having excellent chemical resistance and etch resistance, and having low outgas generation and no haze is obtained. It was.
- the cured film obtained as described above may be applied to an overcoat layer such as an OLED device, and thus may be usefully used for fabricating a flexible display.
- the composition may further include a solvent to achieve an appropriate viscosity and the like.
- the low temperature curing composition includes a siloxane compound including an epoxy-substituted monovalent organic group represented by Formula 1 below:
- R 1 to R 9 are each independently a substituted or unsubstituted C1 to C6 monovalent aliphatic hydrocarbon group, a substituted or unsubstituted C6 to C20 monovalent alicyclic hydrocarbon group, a substituted or unsubstituted C6 to C20
- the structural units indicated may include one or more different structural units.
- the compound represented by Formula 1 includes a mixture of a siloxane compound having a number average molecular weight in the range of 100 to 1,000 and a siloxane compound having a number average molecular weight in the range of 1,000 to 10,000.
- the compound represented by Formula 1 includes a combination of 20 wt% or less of the siloxane compound having a number average molecular weight in the range of 100 to 1,000, and 80 wt% or more of the siloxane compound having a number average molecular weight in the range of 1,000 to 10,000.
- the compound represented by Formula 1 is 15 wt% or less, for example, 1.0 wt% to 12 wt%, for example, 1.5 wt% or less, of the siloxane compound having a number average molecular weight in the range of 100 to 1,000.
- the composition according to the embodiment is low by the epoxy ring-opening reaction thermal initiator described below. Curing at a temperature of, for example, 100 ° C. or less can provide sufficient surface hardness and mechanical strength.
- the siloxane compound having a number average molecular weight in the range of 1,000 to 10,000 is very reactive and may cause problems such as storage stability when included in excess of the above range. In addition, a problem may occur such that the reaction occurs even at the temperature when stirring after the crude liquid.
- siloxane units of the compound represented by Formula 1 may have an epoxy-substituted organic group.
- the composition according to the embodiment is a low temperature, for example, 100 °C or less by the epoxy ring opening reaction thermal initiator described below Curing at a temperature of can provide sufficient surface hardness and mechanical strength.
- the composition according to the embodiment is ring-opened by an epoxy ring-opening reaction to crosslink with other siloxane compounds
- the ratio of epoxy groups to be made is low, and a cured film having sufficient surface hardness and mechanical strength after curing cannot be provided.
- the compound represented by Formula 1 may be 0 ⁇ M ⁇ 0.3, 0 ⁇ D1 ⁇ 0.7, 0.3 ⁇ T1 ⁇ 1, 0 ⁇ D2 ⁇ 0.7,0 ⁇ T2 ⁇ 0.7.
- the epoxy-substituted monovalent organic group may be an epoxy-substituted monovalent aliphatic organic group, an epoxy-substituted monovalent alicyclic organic group, or an epoxy-substituted monovalent aromatic organic group.
- the epoxy-substituted monovalent organic group may be an epoxy-substituted monovalent aliphatic organic group, wherein the epoxy-substituted monovalent aliphatic organic group includes a glycidyl ether group or an oxetanyl ether group Can be.
- the epoxy-substituted monovalent aliphatic organic group comprising the glycidyl ether group may be a 3-glycidoxy-propyl group.
- the compound represented by the formula (1) is, for example, a monomer represented by R 1 R 2 R 3 SiZ 1 , a monomer represented by R 4 R 5 SiZ 2 Z 3, and a monomer represented by R 6 SiZ 4 Z 5 Z 6 .
- At least one selected from a monomer represented by R 7 R 8 SiZ 7 Z 8 , and a monomer represented by R 9 SiZ 9 Z 10 Z 11 can be obtained by hydrolysis and polycondensation.
- the definitions of R 1 to R 9 are as described above, and Z 1 to Z 11 are each independently a C 1 to C 6 alkoxy group, a hydroxy group, a halogen group, a carboxyl group, or a combination thereof.
- the hydrolysis and polycondensation reaction for preparing the compound represented by Formula 1 may use a general method well known to those skilled in the art. For example, adding a solvent, water, and a catalyst as necessary to the mixture of monomers, and stirring for 0.5 to 50 hours at a temperature of 50 °C to 150 °C, for example 90 °C to 130 °C do. In addition, during stirring, distillation and removal of hydrolysis by-products (alcohols, such as methanol) and condensation by-products can also be performed by distillation as needed.
- hydrolysis by-products alcohols, such as methanol
- the reaction solvent is not particularly limited, but the same solvent as the solvent that may be included in the low temperature curing composition according to the above-described embodiment including the compound of Formula 1 may be used.
- the amount of the solvent added may be 10 to 1000 parts by weight based on 100 parts by weight of the total weight of the monomer.
- the addition amount of the water used for a hydrolysis reaction can be used in 0.5 mol-4.5 mol range with respect to 1 mol of hydrolysable groups.
- the catalyst added as needed, but an acid catalyst, a base catalyst, or the like can be used.
- the addition amount of a catalyst can be used in 0.001-10 weight part with respect to 100 weight part of total weight of the said monomer.
- the epoxy ring-opening reaction cationic thermal initiator is a salt of a sulfonium-based cation and a borate-based anion, and may initiate an epoxy ring-opening reaction at a temperature of 100 ° C. or less, for example, 75 ° C. or more and 90 ° C. or less, and thus, the epoxy ring opening
- a composition according to one embodiment comprising a reactive cationic thermal initiator may be curable at a low temperature, eg, 90 ° C. or less, for example, 80 ° C. or less.
- the epoxy ring-opening cation thermal initiator may be represented by the following formula (2):
- R 10 to R 13 are each independently hydrogen, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C2 to C20 heteroaryl group, or a combination thereof Selected from
- X ⁇ is a borate anion
- R 10 to R 13 may each independently be hydrogen, a C1 to C4 alkyl group, or a C6 to C10 aryl group unsubstituted or substituted with an alkyl group of C1 to C4.
- R 10 may be hydrogen or a C1 to C4 alkyl group
- one of R 11 and R 12 represents a C1 to C4 alkyl group
- the other is a C1 to C4 alkyl group, a C6 to C20 arylalkyl group, or C1 to A naphthyl group unsubstituted or substituted with a C4 alkyl group
- R13 represents a C1 to C4 alkyl group, for example, a methyl group.
- the borate-based anion may be represented by the following Formula 3:
- R 26 to R 30 are each independently F, Cl, Br, or I.
- R 26 to R 30 are all F.
- the epoxy ring-opening thermal initiator is 4-acetoxyphenyl methyl benzyl sulfonium tetrakis (2,3,4,5,6-pentafluorophenyl) borate represented by the following formula (4), or 4-acetoxy Phenyl methyl (2-methyl benzyl) sulfonium tetrakis (pentafluorophenyl) borate, 4-acetoxy phenyl 3-methyl phenylbenzyl methyl sulfonium tetrakis (pentafluorophenyl) borate, etc. can be used, It is not limited to these.
- the epoxy ring-opening cationic thermal initiator is from about 0.01% to about 5% by weight, for example from about 0.05% to about 4% by weight, for example from about 0.1% to about 3% by weight in the composition according to the embodiment. , May be included.
- the epoxy ring-opening reaction cationic thermal initiator allows the epoxy groups substituted in the compound represented by Formula 1 to be ring-opened at 100 ° C. or lower to cause condensation reaction with other siloxane compounds, and thus, 100 ° C. It becomes possible to manufacture the cured film which has sufficient surface hardness at the following low temperature. Accordingly, the composition according to the above embodiment, and a cured film obtained therefrom, may be usefully used for manufacturing a flexible display by forming an overcoat layer on top of an OLED device or the like.
- the low temperature curing composition according to one embodiment may further include a solvent to adjust the viscosity and the like.
- the solvent may be a substance having compatibility with the compound represented by Formula 1 and the epoxy ring-opening reaction initiator, but not reacting with them.
- the solvent examples include alcohols such as methanol and ethanol; Ethers such as dichloroethyl ether, n-butyl ether, diisoamyl ether, methylphenyl ether and tetrahydrofuran; Glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether and diethylene glycol dimethyl ether; Cellosolve acetates such as methyl cellosolve acetate, ethyl cellosolve acetate and diethyl cellosolve acetate; Carbitols such as methyl ethyl carbitol, diethyl carbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether and diethylene glycol diethyl ether; Propylene glycol alkyl ether acetates such as propylene glycol methyl
- glycol ethers such as ethylene glycol monoethyl ether and diethylene glycol dimethyl ether, in consideration of compatibility and reactivity; Ethylene glycol alkyl ether acetates such as ethyl cellosolve acetate; Esters such as 2-hydroxy ethyl propionate; Carbitols such as diethylene glycol monomethyl ether; Propylene glycol alkyl ether acetates such as propylene glycol monomethyl ether acetate and propylene glycol propyl ether acetate can be used.
- Ethylene glycol alkyl ether acetates such as ethyl cellosolve acetate
- Esters such as 2-hydroxy ethyl propionate
- Carbitols such as diethylene glycol monomethyl ether
- Propylene glycol alkyl ether acetates such as propylene glycol monomethyl ether acetate and propylene glycol propyl ether acetate
- the solvent may be used in the range of about 10 parts by weight to about 10,000 parts by weight with respect to 100 parts by weight of the compound represented by Formula 1, and the art within the range capable of realizing a suitable viscosity for coating the composition on the lower substrate.
- One of ordinary skill in the art can use in an appropriate amount in the composition according to the above embodiment.
- the low temperature curing composition according to one embodiment may further include a polymerization inhibitor.
- the siloxane compound represented by the formula (1) has a high polymerization reactivity at room temperature, and thus the molecular weight of the compound may gradually increase due to the polymerization reaction even at room temperature or refrigerated at 10 ° C or lower.
- the composition according to the embodiment may further include a polymerization inhibitor.
- a sulfonium-based compound having a structure similar to that of the epoxy ring-opening reaction thermal initiator and having a higher crosslinking temperature than the thermal initiator can be used.
- (4-hydroxyphenyl) dimethyl sulfonium methyl sulfate (salt), 4- (methylthio) phenol, etc. can be used.
- 3% by weight or less for example about 1% by weight or less, for example about 0.5% or less, for example about 0.1% by weight, based on the weight of the total composition
- up to about 0.05% by weight for example about 0.03% by weight or less, for example about 0.02% by weight or less.
- composition according to the embodiment may further comprise additional additives as described below.
- the composition may be malonic acid; 3-amino-1,2-propanediol; Silane coupling agent containing a vinyl group or a (meth) acryloxy group; Fluorine-based surfactants; Or a combination thereof.
- a silane coupling agent having a reactive substituent such as a vinyl group, a carboxyl group, a methacryloxy group, an isocyanate group, an epoxy group, etc. may be further included in order to improve adhesion to the lower substrate of the low temperature curing composition.
- silane coupling agent examples include trimethoxysilyl benzoic acid, ⁇ -methacryloxypropyl trimethoxysilane, vinyl triacetoxysilane, vinyl trimethoxysilane, ⁇ -isocyanate propyl triethoxysilane, and ⁇ -glycidoxy Cipropyl trimethoxysilane, (beta)-(3, 4- epoxycyclohexyl) ethyl trimethoxysilane, etc. are mentioned, These can be used individually or in mixture of 2 or more types.
- the silane coupling agent may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the low temperature curing composition. When the silane coupling agent is included in the above range, it may be excellent in adhesion, storage properties and the like.
- composition according to the embodiment may further include a surfactant, for example, a fluorine-based surfactant in order to improve the coating properties and prevent the formation of defects.
- a surfactant for example, a fluorine-based surfactant
- fluorine-based surfactants examples include BM-1000 ® , BM-1100 ® , and the like from BM Chemie Co .; Mecha packs F 142D ® , F 172 ® , F 173 ® , F 183 ®, etc. from Dai Nippon Inki Chemical Co., Ltd .; Prorad FC-135 ® , FC-170C ® , FC-430 ® , FC-431 ®, etc.
- the surfactant may be used in an amount of 0.001 part by weight to 5 parts by weight based on 100 parts by weight of the composition.
- the surfactant is included in the above range, coating uniformity is secured, staining does not occur, and wetting on the glass substrate is excellent.
- the low-temperature curing composition may be added a certain amount of other additives such as antioxidants, stabilizers, etc. within a range that does not inhibit the physical properties.
- the low temperature curing composition may be a negative photosensitive resin composition.
- the low temperature curing composition may be curable at a low temperature of 100 ° C. or less, such as 90 ° C. or less, such as 75 ° C. or more and 90 ° C. or less.
- Another embodiment provides a cured film prepared using the low temperature curing composition described above.
- the cured film may have a desired thickness using a method such as spin or slit coating method, roll coating method, screen printing method, applicator method, etc. on a substrate, for example, an OLED device having a predetermined pretreatment of the composition according to the embodiment.
- the coating was applied in a thickness of 1 ⁇ m to 30 ⁇ m, and heated at a temperature of 70 ° C. to 90 ° C. for 1 minute to 1 hour to initiate a ring-opening reaction of the epoxy group of the compound represented by Formula 1, and subsequently the composition.
- it can be prepared by curing to have a high surface hardness in the low temperature range.
- the cured film prepared as described above has a high surface hardness, and thus high mechanical strength, even though it is cured at a low temperature, it is also excellent in chemical resistance and etching resistance, and as can be seen from the examples described later, high It has light transmittance and low permittivity, low outgas generation and no haze after CVD.
- the polymer solution was distilled under reduced pressure to remove toluene to obtain an epoxy group-containing siloxane compound represented by the following formula (6) having a number average molecular weight of 721 g / mole.
- the number average molecular weight was measured by RI detector of Empower GPC of Waters.
- the polymer solution was distilled under reduced pressure to remove toluene to obtain an epoxy group-containing siloxane compound represented by the following formula (7) having a number average molecular weight of 2781 g / mole.
- the number average molecular weight was measured by RI detector of Empower GPC of Waters.
- the polymer solution was distilled under reduced pressure to remove toluene to obtain an epoxy group-containing siloxane compound represented by the following formula (8) having a number average molecular weight of 4133 g / mole.
- the number average molecular weight was measured by RI detector of Empower GPC of Waters.
- the resulting polymer solution was then washed with water to remove reaction byproducts.
- the polymer solution was distilled under reduced pressure to remove toluene to obtain an alkenyl group-containing siloxane compound represented by the following formula (9) having a number average molecular weight of 3218 g / mole.
- the number average molecular weight was measured by RI detector of Empower GPC of Waters.
- siloxane compounds according to Synthesis Example 1 and Synthesis Example 2 were mixed at the ratios shown in Table 1 below, and as the cationic ring opening reaction initiators, 4-acetoxyphenyl benzyl methyl sulfonium tetrakis (pentafluorophenyl), respectively, ) 0.2% by weight borate (Example 1), 0.2% by weight of 4-acetoxyphenyl methyl (2-methylbenzyl) sulfonium tetrakis (pentafluorophenyl) borate (Example 2), and 4-acetoxyphenyl 3 -Methyl phenylbenzyl methyl sulfonium tetrakis (pentafluoro phenyl) borate 0.2 wt% (Example 3) was mixed to prepare a cured composition according to Examples 1-3.
- siloxane compounds according to Synthesis Examples 2 to 4 were mixed at the ratios shown in Table 1, and [(4-acetyloxy) phenyl] methyl (phenylmethyl) sulfonium tetra as an epoxy ring opening reaction initiator was added thereto.
- siloxane compound according to Comparative Synthesis Example 1 and Comparative Synthesis Example 2 were mixed at the ratios shown in Table 1, and 3 ppm of hydrogen siliconization catalyst Pt-CS 2.0 (manufactured by Unicore) was mixed therein to form a curing composition according to Comparative Example 1. To prepare.
- siloxane compounds according to Synthesis Example 2 and Synthesis Example 3 were mixed at a ratio shown in Table 1, wherein the epoxy catalysts O , O -Diethyl ester phosphorodithioic acid ( O , O- diethyl ester phosphorodithioic acid), and tetrabutyl phosphonium (1.5% by weight) were mixed to prepare a cured composition according to Comparative Example 2.
- siloxane compounds according to Synthesis Example 1 and Synthesis Example 2 were mixed at the ratios shown in Table 1, where 4-acetoxyphenyl (methyl) 2-naphthyl methyl sulfonium hexafluoro anti 0.2 wt% of Monate (Comparative Example 3), 0.2 wt% of 4-acetoxyphenyl benzylmethyl sulfonium hexafluoro antimonate (Comparative Example 4), and 0.2 wt% of 4-acetoxyphenyl dimethyl sulfonium hexafluoro phosphate % (Comparative Example 5) were mixed to prepare a cured composition according to Comparative Examples 3 to 5.
- it After being placed in the flask, it can be prepared by adding and mixing an epoxy ring-opening thermal initiator, an epoxy catalyst, a hydrogen siliconization catalyst, or a further polymerization inhibitor.
- the cured compositions prepared above were each coated on a glass substrate using a screen printing equipment, and then cured in an oven at 85 ° C. for 1 hour to obtain a cured film having a thickness of 10 ⁇ m.
- Dielectric constant is applied to each of the curing compositions on a chromium (Cr) substrate, not a glass substrate, and cured for 1 hour at 85 °C to obtain a coating layer of 10 ⁇ m thickness, by depositing an aluminum layer thereon at 100kHz Measure
- WAYNE KERR ELECTRONICS, Inc. Precision Impedance Analyzer (Model: 4294A, HP) selects an arbitrary electrode 3EA per specimen and measures it for each frequency domain, and then calculates the average capacitance value.
- ⁇ r Dielectric constant
- ⁇ r C / ⁇ 0 ⁇ t / A
- A Area (cm 2 ).
- Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Synthesis Example 1 - - - - - - - - 75.0 - - - - Comparative Synthesis Example 2 - - - - - - 25.0 - - - - - Hydrogen Silicate Catalyst Pt - - - - - - - 3 ppm - - - - Synthesis Example 1 94.8 94.8 94.8 - - - - - - 94.8 94.8 94.8 Synthesis Example 2 5.0 5.0 5.0 1.5 1.5 1.5 1.5 - 1.5 5.0 5.0 5.0 Synthesis Example 3 - - - 98.3 98.0 - 97.5 - 97.0 - - - Synthesis Example 4 - - - - - - - 98.3 - - - - - - Epoxy ring opening initi
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Abstract
Description
| 실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예6 | 실시예7 | 비교예1 | 비교예2 | 비교예3 | 비교예4 | 비교예5 | |
| 비교합성예 1 | - | - | - | - | - | - | - | 75.0 | - | - | - | - |
| 비교합성예 2 | - | - | - | - | - | - | - | 25.0 | - | - | - | - |
| 수소규소화 촉매 Pt | - | - | - | - | - | - | - | 3 ppm | - | - | - | - |
| 합성예 1 | 94.8 | 94.8 | 94.8 | - | - | - | - | - | - | 94.8 | 94.8 | 94.8 |
| 합성예 2 | 5.0 | 5.0 | 5.0 | 1.5 | 1.5 | 1.5 | 1.5 | - | 1.5 | 5.0 | 5.0 | 5.0 |
| 합성예 3 | - | - | - | 98.3 | 98.0 | - | 97.5 | - | 97.0 | - | - | - |
| 합성예 4 | - | - | - | - | - | 98.3 | - | - | - | - | - | - |
| 에폭시 개환반응 개시제 | 0.2 | 0.2 | 0.2 | 0.15 | 0.5 | 0.15 | 1.0 | - | - | 0.2 | 0.2 | 0.2 |
| 에폭시 촉매 | - | - | - | - | - | - | - | - | 1.5 | - | - | - |
| 중합금지제 | - | - | - | 0.015 | 0.015 | 0.015 | 0.015 | - | - | - | - | - |
| 경도 (Pencil hardness, 1kg) | 4H | 6H | 4H | 3H | 3H | 3H | 3H | < 6B | < 6B | 2H | H | H |
| 투과도 (450nm, %) | 99.6 | 99.8 | 99.6 | 99.6 | 99.7 | 99.7 | 99.7 | 99.3 | 99.4 | 99.3 | 99.6 | 99.5 |
| CVD 後 Haze meter | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | > 30 | > 30 | 1.8 | 2.0 | 1.5 |
| 유전상수(ε') | 4.15 | 3.50 | 3.81 | 4.12 | 4.25 | 3.71 | 3.53 | 3.13 | 5.68 | 4.31 | 4.26 | 4.03 |
| 내화학성(막 두께 감소, %) | 0.2 | 0.1 | 0.4 | 0.4 | 0.6 | 0.8 | 1.5 | 0.5 | 6.3 | 5.8 | 17.4 | 7.6 |
| 아웃개싱 (%) | 0.2 | 0.1 | 0.3 | 0.3 | 0.3 | 0.2 | 2.0 | 0.6 | 2.0 | 2.4 | 7.5 | 5.1 |
Claims (15)
- (A) 하기 화학식 1로 표시되는 에폭시기 함유 실록산 화합물:[화학식 1](R1R2R3SiO1/2)M(R4R5SiO2/2)D1(R6SiO3/2)T1(R7R8SiO2/2)D2(R9SiO3/2)T2(화학식 1에서, R1 내지 R9는, 각각 독립적으로, 치환 또는 비치환된 C1 내지 C6의 1가 지방족 탄화수소기, 치환 또는 비치환된 C6 내지 C20의 1가 지환족 탄화수소기, 치환 또는 비치환된 C6 내지 C20의 1가 방향족 탄화수소기, 및 에폭시-치환된 1가 유기기로부터 독립적으로 선택되는 유기기이되, R1 내지 R6 중 적어도 하나는 에폭시-치환된 1가 유기기이고, 0≤M<1, 0≤D1<1, 0<T1≤1, 0≤D2<1, 0≤T2<1 이고, M+D1+T1+D2+T2=1이며, 상기 M, D1, T1, D2, 및 T2로 표시한 구조단위들은 각각 상이한 1 종 이상의 구조단위들을 포함할 수 있다); 및(B) 설포늄계 양이온과 보레이트계 음이온의 염인 에폭시 개환반응 양이온 열개시제를 포함하며,상기 화학식 1로 표시되는 화합물이 수평균 분자량 100 내지 1,000 범위인 실록산 화합물과, 수평균 분자량 1,000 내지 10,000 범위인 실록산 화합물의 조합인 저온 경화 조성물.
- 제1항에서, 상기 화학식 1로 표시되는 화합물은 수평균 분자량 100 내지 1,000 범위인 실록산 화합물 20 중량% 이하와, 수평균 분자량 1,000 내지 10,000 범위인 실록산 화합물 80 중량% 이상의 혼합물인 저온 경화 조성물.
- 제1항에서, 상기 화학식 1로 표시되는 화합물의 실록산 단위들의 약 35 몰% 내지 100 몰%는 에폭시-치환된 유기기를 가지는 것인 저온 경화 조성물.
- 제1항에서, 상기 화학식 1로 표시되는 화합물의 0≤M≤0.3, 0≤D1<0.7, 0.3≤T1≤1, 0≤D2<0.7,0≤T2<0.7 인 저온 경화 조성물.
- 제1항에서, 상기 에폭시-치환된 1가 유기기는 에폭시-치환된 1가 지방족 유기기, 에폭시-치환된 1가 지환족 유기기, 에폭시-치환된 1가 방향족 유기기이고, 상기에폭시-치환된 1가 지방족 유기기는 글리시딜 에테르기 또는 옥세타닐 에테르기를 포함하는 것인 저온 경화 조성물.
- 제6항에서, 상기 화학식 2의 R10 내지 R13은, 각각 독립적으로, 수소, C1 내지 C4 알킬기, 또는 C1 내지 C4 의 알킬기로 치환 또는 비치환된 C6 내지 C10의 아릴기인 저온 경화 조성물.
- 제1항에서, 상기 에폭시 개환반응 양이온 열개시제는 상기 조성물 내에 약 0.01 중량% 내지 약 5 중량% 포함되는 저온 경화 조성물.
- 제1항에서, 상기 조성물은 용매를 더 포함하는 저온 경화 조성물.
- 제1항에서, 상기 조성물은 중합금지제를 더 포함하는 저온 경화 조성물.
- 제1항에서, 상기 조성물은 100℃ 이하의 온도에서 경화되는 저온 경화 조성물.
- 제1항에 내지 제12항 중 어느 한 항에 따른 조성물을 경화시켜 얻어지는 경화막.
- 제13항에서, 상기 경화막은 유기발광 다이오드(OLED) 소자의 오버코트 층인 저온 경화 조성물.
- 제13항에 따른 경화막을 갖는 전자 장치.
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| JP2018506276A JP6585824B2 (ja) | 2015-08-31 | 2016-08-01 | 低温硬化組成物、それから形成された硬化膜、および前記硬化膜を有する電子装置 |
| US15/747,244 US10822449B2 (en) | 2015-08-31 | 2016-08-01 | Low temperature curing composition, cured film formed therefrom, and electronic device having cured film |
| CN201680049195.6A CN107922620B (zh) | 2015-08-31 | 2016-08-01 | 低温固化组合物、固化膜以及电子装置 |
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| KR1020150122991A KR101840219B1 (ko) | 2015-08-31 | 2015-08-31 | 저온 경화 조성물, 그로부터 형성된 경화막, 및 상기 경화막을 갖는 전자 장치 |
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| KR102801373B1 (ko) * | 2018-08-07 | 2025-05-02 | 에스케이이노베이션 주식회사 | 하드코팅층 형성용 조성물, 하드코팅 필름의 제조 방법 및 이를 이용하여 제조된 하드코팅 필름 |
| US11168212B2 (en) * | 2018-08-07 | 2021-11-09 | Sk Innovation Co., Ltd. | Composition for forming hard coating layer, method of preparing hard coating film and hard coating film prepared by using the same |
| KR102801433B1 (ko) * | 2018-08-17 | 2025-04-30 | 에스케이이노베이션 주식회사 | 하드코팅층 형성용 조성물, 하드코팅 필름의 제조 방법 및 이를 이용하여 제조된 하드코팅필름 |
| US11692108B2 (en) | 2018-08-17 | 2023-07-04 | Sk Innovation Co., Ltd. | Composition for forming hard coating layer, preparation method of hard coating film, and hard coating film prepared using the same |
| US20200056056A1 (en) * | 2018-08-17 | 2020-02-20 | Sk Innovation Co., Ltd. | Hard Coating Film and Preparation Method Thereof |
| KR102808435B1 (ko) * | 2018-08-23 | 2025-05-19 | 에스케이이노베이션 주식회사 | 반사방지 하드코팅 필름 및 이의 제조 방법 |
| US11693155B2 (en) | 2018-08-23 | 2023-07-04 | Sk Innovation Co., Ltd. | Antireflection hard coating film and preparation method thereof |
| KR102808462B1 (ko) * | 2018-08-23 | 2025-05-19 | 에스케이이노베이션 주식회사 | 반사방지 하드코팅 필름 및 이의 제조 방법 |
| US11693154B2 (en) | 2018-08-23 | 2023-07-04 | Sk Innovation Co., Ltd. | Antireflection hard coating film and preparation method thereof |
| KR20210155570A (ko) | 2020-06-16 | 2021-12-23 | 동우 화인켐 주식회사 | 격벽 형성용 조성물, 이를 이용하여 제조된 격벽 구조물 및 상기 격벽 구조물을 포함하는 표시 장치 |
| WO2023032724A1 (ja) * | 2021-08-30 | 2023-03-09 | 信越化学工業株式会社 | 低誘電率絶縁性コーティング組成物、その硬化物および表示装置 |
| CN117661801A (zh) * | 2022-08-26 | 2024-03-08 | 广西量子通达科技有限公司 | 一种交互式装饰板材及其制备方法和应用 |
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|---|---|
| US10822449B2 (en) | 2020-11-03 |
| JP2018523737A (ja) | 2018-08-23 |
| CN107922620B (zh) | 2021-06-08 |
| KR101840219B1 (ko) | 2018-03-20 |
| CN107922620A (zh) | 2018-04-17 |
| US20180162989A1 (en) | 2018-06-14 |
| JP6585824B2 (ja) | 2019-10-02 |
| KR20170025893A (ko) | 2017-03-08 |
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