KR101622945B1 - Adhesive layer and adhesive film - Google Patents
Adhesive layer and adhesive film Download PDFInfo
- Publication number
- KR101622945B1 KR101622945B1 KR1020130139689A KR20130139689A KR101622945B1 KR 101622945 B1 KR101622945 B1 KR 101622945B1 KR 1020130139689 A KR1020130139689 A KR 1020130139689A KR 20130139689 A KR20130139689 A KR 20130139689A KR 101622945 B1 KR101622945 B1 KR 101622945B1
- Authority
- KR
- South Korea
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive layer
- film
- meth
- Prior art date
Links
- 239000002313 adhesive film Substances 0.000 title claims abstract description 31
- 239000012790 adhesive layer Substances 0.000 title description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 191
- 239000010410 layer Substances 0.000 claims abstract description 124
- 239000000178 monomer Substances 0.000 claims abstract description 105
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 73
- 239000000203 mixture Substances 0.000 claims abstract description 48
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 34
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 25
- 230000001070 adhesive effect Effects 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 22
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 20
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 18
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 4
- 239000010408 film Substances 0.000 claims description 75
- 239000012788 optical film Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 15
- 229920001577 copolymer Polymers 0.000 claims description 13
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 10
- 239000003431 cross linking reagent Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 238000005401 electroluminescence Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 239000010409 thin film Substances 0.000 abstract description 4
- -1 acrylamide compound Chemical class 0.000 description 30
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 14
- 125000003118 aryl group Chemical group 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 238000004132 cross linking Methods 0.000 description 8
- 229920006243 acrylic copolymer Polymers 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 description 3
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 3
- 150000003926 acrylamides Chemical class 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000005361 soda-lime glass Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- IEQWWMKDFZUMMU-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethyl)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)CCOC(=O)C=C IEQWWMKDFZUMMU-UHFFFAOYSA-N 0.000 description 1
- YDRQKFSCVSLQKI-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethyl)cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1(CCOC(=O)C=C)C(O)=O YDRQKFSCVSLQKI-UHFFFAOYSA-N 0.000 description 1
- UXTGJIIBLZIQPK-UHFFFAOYSA-N 3-(2-prop-2-enoyloxyethyl)phthalic acid Chemical compound OC(=O)C1=CC=CC(CCOC(=O)C=C)=C1C(O)=O UXTGJIIBLZIQPK-UHFFFAOYSA-N 0.000 description 1
- QCJUPYAFGMTCIH-UHFFFAOYSA-N 3-prop-2-enoyloxyphthalic acid Chemical compound OC(=O)C1=CC=CC(OC(=O)C=C)=C1C(O)=O QCJUPYAFGMTCIH-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 description 1
- OCIFJWVZZUDMRL-UHFFFAOYSA-N 6-hydroxyhexyl prop-2-enoate Chemical compound OCCCCCCOC(=O)C=C OCIFJWVZZUDMRL-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000004103 aminoalkyl group Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004663 dialkyl amino group Chemical group 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- YHOSNAAUPKDRMI-UHFFFAOYSA-N n,n-di(propan-2-yl)prop-2-enamide Chemical compound CC(C)N(C(C)C)C(=O)C=C YHOSNAAUPKDRMI-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
- Polarising Elements (AREA)
Abstract
본 발명은 두께 1㎛∼20㎛의 박막에도 불구하고 고점착력, 고밀착성의 성능을 갖는 점착제층 및 그것을 사용한 점착 필름을 제공한다.
본 발명은 아크릴계 폴리머로 이루어지는 점착제 조성물을 가교시켜 이루어지는 점착제층에 있어서, 상기 점착제 조성물이, 주성분인 (메타)아크릴레이트 모노머로서 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종 이상을 함유하고, 다른 공중합성 모노머로서 질소 함유 비닐 모노머의 적어도 1종 이상과, 카르복실기를 함유하는 공중합성 비닐 모노머 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 적어도 1종 이상을 함유하며, 상기 점착제층의 두께가 1㎛∼20㎛이고, 두께가 5㎛일 때의 점착력이 4.0(N/25㎜) 이상인 점착제층을 제공한다.The present invention provides a pressure-sensitive adhesive layer having a high adhesive force and a high adhesion performance despite a thin film having a thickness of 1 탆 to 20 탆 and an adhesive film using the pressure-sensitive adhesive layer.
The present invention relates to a pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition comprising an acrylic polymer, wherein the pressure-sensitive adhesive composition comprises at least one (meth) acrylate monomer of an alkyl (meth) acrylate monomer having an alkyl group of C1- At least one or more copolymerizable vinyl monomers containing at least one nitrogen-containing vinyl monomer as the other copolymerizable monomer and a copolymerizable vinyl monomer and / or a hydroxyl group containing a carboxyl group, Wherein the pressure-sensitive adhesive layer has a thickness of 1 탆 to 20 탆 and an adhesive force of 4.0 (N / 25 mm) or more when the thickness is 5 탆.
Description
본 발명은 광학 부재의 층간 첩합(貼合) 등에 사용되는, 두께 1㎛∼20㎛의 박막에도 불구하고 고점착력, 고밀착성의 성능을 갖는 점착제층 및 그것을 사용한 점착 필름에 관한 것이다.The present invention relates to a pressure-sensitive adhesive layer having a high adhesive property and a high adhesion property, and a pressure-sensitive adhesive film using the pressure-sensitive adhesive layer, despite the thin film having a thickness of 1 탆 to 20 탆 and used for interlayer bonding of optical members and the like.
점착제층을 개재하여 편광판, 위상차판 등의 광학 부재를 액정 셀 등의 피착체에 첩합하기 위해, 다양한 점착 필름이 제안되어 있다(예를 들면, 특허문헌 1∼2 참조).A variety of pressure-sensitive adhesive films have been proposed in order to bond an optical member such as a polarizing plate and a phase difference plate to an adherend such as a liquid crystal cell via a pressure-sensitive adhesive layer (see, for example, Patent Documents 1 and 2).
특허문헌 1에는, 부틸아크릴레이트 등을 주성분 모노머로 하고 아크릴아미드 화합물 등을 함유하는 광학용 점착제 조성물이 기재되어 있다.Patent Document 1 discloses a pressure-sensitive adhesive composition for optical use which comprises butyl acrylate or the like as a main component monomer and contains an acrylamide compound or the like.
특허문헌 2에는, 탄소수 4∼8의 알킬기를 갖는 (메타)아크릴레이트를 주성분 모노머로 하고, 카르복실기 함유 모노머 및 질소 함유 비닐 모노머를 함유하는 광학용 점착제 조성물이 기재되어 있다.Patent Document 2 discloses a pressure-sensitive adhesive composition for optical use which contains a (meth) acrylate having an alkyl group of 4 to 8 carbon atoms as a main component monomer and a carboxyl group-containing monomer and a nitrogen-containing vinyl monomer.
또한, 점착제층의 굴절률을 높이기 위해 다양한 연구를 한 점착 필름이 제안되어 있다(예를 들면, 특허문헌 3∼8 참조).Adhesive films have been proposed in order to increase the refractive index of the pressure-sensitive adhesive layer (see, for example, Patent Documents 3 to 8).
특허문헌 3에는, 방향족 고리를 갖고 굴절률 1.51∼1.75의 점착 부여제(tackifier)를 함유하는 광학용 점착제 조성물이 기재되어 있다.Patent Document 3 discloses an optical adhesive composition having an aromatic ring and containing a tackifier having a refractive index of 1.51 to 1.75.
특허문헌 4에는, 방향족 고리를 함유하는 아크릴산 변성 모노머의 공중합성 폴리머를 포함하는 점착제 조성물을 사용한 점착 시트가 기재되어 있다.Patent Document 4 discloses a pressure-sensitive adhesive sheet using a pressure-sensitive adhesive composition comprising a copolymeric polymer of an acrylic acid-modified monomer containing an aromatic ring.
특허문헌 5에는, 방향족 고리를 갖는 점착 부여 수지와 방향족 인산에스테르계 가소제를 함유하는 광학용 점착제 조성물이 기재되어 있다.Patent Document 5 discloses a pressure-sensitive adhesive composition for optical purposes containing a tackifier resin having aromatic rings and an aromatic phosphate ester plasticizer.
특허문헌 6에는, 아크릴계 수지와 에틸렌성 불포화기를 1개 함유하는 방향족 화합물을 함유하는 점착제 조성물이 경화되어 이루어지는 점착제가 기재되어 있다.Patent Document 6 discloses a pressure-sensitive adhesive in which a pressure-sensitive adhesive composition containing an acrylic resin and an aromatic compound containing one ethylenic unsaturated group is cured.
특허문헌 7에는, 방향족 모노머를 함유하는 아크릴계 점착제를 개재하여 위상차 필름 및 복굴절판을 서로 고착시켜 이루어지는 광학 부품이 기재되어 있다.Patent Document 7 describes an optical component obtained by fixing a retardation film and a birefringent plate to each other through an acrylic pressure sensitive adhesive containing an aromatic monomer.
특허문헌 8에는, 방향족 디이소시아네이트와 방향족 폴리에스테르디올을 반응시켜 이루어지는 우레탄 수지를 포함하는 점착제 조성물이 기재되어 있다.Patent Document 8 discloses a pressure-sensitive adhesive composition comprising a urethane resin obtained by reacting an aromatic diisocyanate and an aromatic polyester diol.
근래에 있어서, 광학 부재의 층간을 첩합하기 위해 사용되는 점착 필름에 대해 요구되고 있는 것은, 광학 부재의 박막화를 도모하기 위해 점착제층의 두께를 20㎛ 이하로 얇게 한 점착 필름으로 하는 것이다.In recent years, what is required of an adhesive film used for bonding between layers of optical members is an adhesive film in which the thickness of the adhesive layer is reduced to 20 占 퐉 or less in order to reduce the thickness of the optical member.
일반적으로, 점착제층의 점착력은 점착제층의 두께에 대략 비례한다는 점에서, 점착제층의 두께를 얇게 하면 거기에 수반되어 점착력이 저하된다.Generally, since the adhesive force of the pressure-sensitive adhesive layer is approximately proportional to the thickness of the pressure-sensitive adhesive layer, when the thickness of the pressure-sensitive adhesive layer is made thinner, adherence is deteriorated.
그러나, 근래에 점착 필름은 점착제층의 두께를 얇게 해도, 종래의 점착 필름(점착제층의 두께가 약 30㎛로 두껍다)과 동등한 점착력을 가지면서, 또한 고온·고습도 분위기하에 장시간 방치한 후의 내구성에 있어서도 종래의 점착 필름과 동등 이상의 성능을 갖는 것이 요구되고 있다.In recent years, however, even if the thickness of the pressure-sensitive adhesive layer is reduced, the pressure-sensitive adhesive film has an adhesive strength equivalent to that of the conventional pressure-sensitive adhesive film (thickness of the pressure-sensitive adhesive layer is about 30 탆 thick) and has durability after being left for a long time under a high- Is required to have a performance equal to or higher than that of a conventional adhesive film.
또한, 점착제층의 두께를 얇게 할 수 있고, 및 에이징 처리(항온에서 양생을 행하는 것)를 실시할 필요가 없는 점착제층을 형성할 수 있다는 점에서, 점착 필름의 기재를 생략한 점착제층만으로 이루어지는 「이형 필름/점착제층/이형 필름」의 부재 구성으로 한 NCF(Non Carrier Film)의 형태로 하는 것이 요구되고 있다.In addition, in view of being able to form a pressure-sensitive adhesive layer in which the thickness of the pressure-sensitive adhesive layer can be made thin and the aging treatment (curing at a constant temperature) need not be carried out, It is required to be in the form of a NCF (Non Carrier Film) constituted by a member constituted of " release film / pressure-sensitive adhesive layer / release film ".
또한, 종래의 점착 필름에서는 피착체에 점착 필름을 첩합한 후에 에이징 처리를 실시함으로써, 피착체와 점착제층의 밀착성이 향상되었다.Further, in the conventional adhesive film, the adhesion between the adherend and the pressure-sensitive adhesive layer is improved by subjecting the adherend to aging treatment after bonding the pressure-sensitive adhesive film to the adherend.
그러나, NCF의 형태를 한 점착 필름은 피착체에 점착 필름을 첩합하기 전에 이미 점착제층의 에이징이 종료되어 있다는 점에서, 피착체와 점착제층의 밀착력이 부족해진다. 이 때문에, 피착체의 표면에 대해서 코로나 처리 등의 표면 처리를 실시할 필요가 있다는 문제가 있었다.However, in the case of the NCF-form adhesive film, since the aging of the pressure-sensitive adhesive layer has already been completed before the pressure-sensitive adhesive film is adhered to the adherend, adhesion between the adherend and the pressure-sensitive adhesive layer becomes insufficient. For this reason, there has been a problem in that it is necessary to perform surface treatment such as corona treatment on the surface of the adherend.
이들 요구 사항 및 문제를 극복한 점착 필름이 필요로 되고 있다.There is a need for an adhesive film that overcomes these requirements and problems.
본 발명은 상기 사정을 감안하여 이루어진 것이며, 두께 1㎛∼20㎛의 박막에도 불구하고 고점착력, 고밀착성의 성능을 갖는 점착제층 및 그것을 사용한 점착 필름을 제공하는 것을 과제로 한다.SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a pressure-sensitive adhesive layer having a high adhesive force and a high adhesion performance despite a thin film having a thickness of 1 탆 to 20 탆 and an adhesive film using the same.
상기 과제를 해결하기 위해, 본 발명은 아크릴계 폴리머로 이루어지는 점착제 조성물을 가교시켜 이루어지는 점착제층에 있어서, 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종을 주성분 모노머로 하고, 다른 공중합성 모노머로서 공중합 가능한 질소 함유 비닐 모노머의 적어도 1종 이상을 함유시켜 공중합 및 가교시킴으로써, 강인한 점착력과 고밀착성의 성능을 갖는 점착제층으로 하는 것을 기술 사상으로 하고 있다.In order to solve the above problems, the present invention provides a pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition comprising an acryl-based polymer, wherein at least one of alkyl (meth) acrylate monomers having an alkyl group of C1- A pressure-sensitive adhesive layer having at least one kind of nitrogen-containing vinyl monomer copolymerizable as another copolymerizable monomer and capable of cohesion and crosslinking to have a strong adhesive force and a high adhesion property.
또한, 상기 과제를 해결하기 위해, 본 발명은 아크릴계 폴리머로 이루어지는 점착제 조성물을 가교시켜 이루어지는 점착제층에 있어서, 상기 점착제 조성물이, 주성분인 (메타)아크릴레이트 모노머로서 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종 이상을 함유하고, 다른 공중합성 모노머로서 질소 함유 비닐 모노머의 적어도 1종 이상과, 카르복실기를 함유하는 공중합성 비닐 모노머 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 적어도 1종 이상을 함유하며, 상기 점착제층의 두께가 1㎛∼20㎛이고, 두께가 5㎛일 때의 점착력이 4.0(N/25㎜) 이상인 점착제층을 제공한다.According to another aspect of the present invention, there is provided a pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition comprising an acryl-based polymer, wherein the pressure-sensitive adhesive composition comprises an alkyl (meth) acrylate monomer having an alkyl group of C1- (Meth) acrylate monomer containing at least one nitrogen-containing vinyl monomer and a copolymerizable vinyl monomer and / or a hydroxyl group containing a carboxyl group as at least one other copolymerizable monomer, Vinyl monomer, wherein the pressure-sensitive adhesive layer has a thickness of 1 占 퐉 to 20 占 퐉 and a pressure-sensitive adhesive force of 4.0 (N / 25 mm) or more when the thickness of the pressure-sensitive adhesive layer is 5 占 퐉.
또한, 상기 점착제 조성물이, (A) 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종 이상을 포함한 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서, (B) 질소 함유 비닐 모노머의 1종 이상을 5∼50중량부와, (C) 카르복실기를 함유하는 공중합성 비닐 모노머 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 적어도 1종 이상을 0.1∼5중량부 함유하는 중량 평균 분자량 20만∼200만의 공중합체, 및 (D) 가교제를 0.01∼5중량부 함유하는 것이 바람직하다.(A) 100 parts by weight of a (meth) acrylate monomer as a main component containing at least one alkyl (meth) acrylate monomer having an alkyl group of C1 to C14 in the alkyl group, (B) (C) 0.1 to 5 parts by weight of at least one copolymerizable vinyl monomer containing a carboxyl group-containing copolymerizable vinyl monomer and / or a hydroxyl group is contained in an amount of 0.1 to 5 parts by weight (D) a cross-linking agent in an amount of 0.01 to 5 parts by weight.
또한, 상기 점착제 조성물이 상기 주성분인 (메타)아크릴레이트 모노머 100중량부 중, 메틸아크릴레이트 모노머를 20중량부 이상의 비율로 함유하는 것이 바람직하다.It is also preferable that the pressure-sensitive adhesive composition contains methyl acrylate monomer in a proportion of 20 parts by weight or more in 100 parts by weight of the (meth) acrylate monomer as the main component.
또한, 상기 점착제 조성물이 상기 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서, 카르복실기를 함유하는 공중합성 비닐 모노머의 1종 이상을 2.0중량부 이하, 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 1종 이상을 5.0중량부 이하의 비율로 함유하는 것이 바람직하다.The pressure-sensitive adhesive composition according to the present invention may further comprise at least 2.0 parts by weight of at least one copolymerizable vinyl monomer containing a carboxyl group per 100 parts by weight of the main component of the (meth) acrylate monomer, and / It is preferable that at least one of the vinyl monomers is contained in an amount of 5.0 parts by weight or less.
또한, 상기 점착제층의 굴절률이 1.47∼1.50인 것이 바람직하다.The refractive index of the pressure-sensitive adhesive layer is preferably 1.47 to 1.50.
또한, 본 발명은 상기 점착제층이 이형 필름의 한쪽 면에 형성되어 이루어지고, 이형 필름/점착제층/이형 필름의 구성인 점착 필름을 제공한다.The present invention also provides an adhesive film comprising the pressure-sensitive adhesive layer formed on one side of a release film and constituting a release film / pressure-sensitive adhesive layer / release film.
또한, 본 발명은 기재의 한쪽 면 위에 상기 점착제층이 적층되어 이루어지는 점착 필름을 제공한다.The present invention also provides an adhesive film comprising the pressure-sensitive adhesive layer laminated on one side of a substrate.
또한, 본 발명은 상기 점착 필름이 사용된 편광판의 주변 부재용 필름을 제공한다.Further, the present invention provides a film for a peripheral member of a polarizing plate using the above-mentioned pressure-sensitive adhesive film.
또한, 본 발명은 상기 점착 필름이 사용된 터치 패널용 필름을 제공한다.The present invention also provides a film for a touch panel using the adhesive film.
또한, 본 발명은 상기 점착 필름이 사용된 전자 종이용 필름을 제공한다.The present invention also provides an electron species utilizing film using the above adhesive film.
또한, 본 발명은 상기 점착 필름이 사용된 유기 일렉트로 루미네센스용 필름을 제공한다.Further, the present invention provides a film for organic electroluminescence in which the above-mentioned pressure-sensitive adhesive film is used.
또한, 본 발명은 광학 필름의 적어도 한쪽 면에 상기 점착제층이 적층되어 이루어지는 점착제층이 형성된 광학 필름을 제공한다.Further, the present invention provides an optical film having a pressure-sensitive adhesive layer formed by laminating the pressure-sensitive adhesive layer on at least one surface of an optical film.
본 발명에 의하면, 종래의 요구 사항 및 문제를 극복하여 두께 1㎛∼20㎛의 박막에도 불구하고 고점착력, 고밀착성의 성능을 갖는 점착제층 및 그것을 사용한 점착 필름을 제공할 수 있다.According to the present invention, it is possible to provide a pressure-sensitive adhesive layer having a high adhesive force and a high adhesion performance in spite of a thin film having a thickness of 1 탆 to 20 탆 and an adhesive film using the same, overcoming the conventional requirements and problems.
이하, 바람직한 실시형태에 기초하여 본 발명을 설명한다.Hereinafter, the present invention will be described based on preferred embodiments.
본 발명의 점착제층은 아크릴계 폴리머로 이루어지는 점착제 조성물을 가교시켜 이루어지는 점착제층에 있어서, 상기 점착제 조성물이 주성분인 (메타)아크릴레이트 모노머로서 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종 이상을 함유하고, 다른 공중합성 모노머로서 질소 함유 비닐 모노머의 적어도 1종 이상과, 카르복실기를 함유하는 공중합성 비닐 모노머 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 적어도 1종 이상을 함유하며, 상기 점착제층의 두께가 1㎛∼20㎛이고, 두께가 5㎛일 때의 점착력이 4.0(N/25㎜) 이상이다.The pressure-sensitive adhesive layer of the present invention is a pressure-sensitive adhesive layer formed by crosslinking a pressure-sensitive adhesive composition comprising an acryl-based polymer, wherein the pressure-sensitive adhesive layer comprises an alkyl (meth) acrylate monomer having an alkyl group of C1 to C14 as a (meth) At least one or more kinds of copolymerizable vinyl monomers containing at least one kind of nitrogen-containing vinyl monomer as the other copolymerizable monomer and a copolymerizable vinyl monomer and / or a hydroxyl group containing a carboxyl group , The pressure-sensitive adhesive layer having a thickness of 1 占 퐉 to 20 占 퐉 and a thickness of 5 占 퐉 is 4.0 (N / 25 mm) or more.
알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머로는, 메틸(메타)아크릴레이트, 에틸(메타)아크릴레이트, 프로필(메타)아크릴레이트, 이소프로필(메타)아크릴레이트, 부틸(메타)아크릴레이트, 이소부틸(메타)아크릴레이트, 펜틸(메타)아크릴레이트, 헥실(메타)아크릴레이트, 헵틸(메타)아크릴레이트, 옥틸(메타)아크릴레이트, 이소옥틸(메타)아크릴레이트, 2-에틸헥실(메타)아크릴레이트, 노닐(메타)아크릴레이트, 이소노닐(메타)아크릴레이트, 데실(메타)아크릴레이트, 운데실(메타)아크릴레이트, 도데실(메타)아크릴레이트, 트리데실(메타)아크릴레이트, 테트라데실(메타)아크릴레이트, 시클로펜틸(메타)아크릴레이트, 시클로헥실(메타)아크릴레이트 등의 적어도 1종 이상을 들 수 있다. 알킬(메타)아크릴레이트 모노머의 알킬기는 직쇄, 분기형, 고리형 중 어느 것이어도 된다. 알킬기의 탄소수가 C1∼C14인 (메타)아크릴산에스테르 모노머는, 점착제 조성물의 아크릴계 폴리머(공중합체) 100중량부에 대한 비율이 50∼95중량부인 것이 바람직하다.Examples of the alkyl (meth) acrylate monomer having an alkyl group of C1 to C14 include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) (Meth) acrylate, isobutyl (meth) acrylate, pentyl (meth) acrylate, hexyl (meth) acrylate, (Meth) acrylate, nonyl (meth) acrylate, nonyl (meth) acrylate, isononyl (meth) acrylate, decyl (Meth) acrylate, tetradecyl (meth) acrylate, cyclopentyl (meth) acrylate, cyclohexyl (meth) acrylate and the like. The alkyl group of the alkyl (meth) acrylate monomer may be any of linear, branched and cyclic. The (meth) acrylic acid ester monomer having an alkyl group having from 1 to 14 carbon atoms is preferably from 50 to 95 parts by weight based on 100 parts by weight of the acrylic polymer (copolymer) of the pressure-sensitive adhesive composition.
또한, 본 발명에 따른 점착제층에 있어서는, 점착제 조성물이 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 1종 이상으로 이루어지는 주성분인 (메타)아크릴레이트 모노머 100중량부 중, 메틸아크릴레이트 모노머를 20중량부 이상의 비율로 함유함으로써, 점착제층의 굴절률을 1.47 이상으로 높일 수 있다.Further, in the pressure-sensitive adhesive layer according to the present invention, the pressure-sensitive adhesive composition preferably comprises 100 parts by weight of a (meth) acrylate monomer which is a main component composed of at least one alkyl (meth) acrylate monomer having an alkyl group of C1- By containing the rate monomer in a proportion of 20 parts by weight or more, the refractive index of the pressure-sensitive adhesive layer can be increased to 1.47 or more.
본 발명에 따른 점착제 조성물에는, 주성분인 (메타)아크릴레이트 모노머로서 방향족기를 함유하는 (메타)아크릴레이트 모노머의 1종 이상을 추가로 함유시킬 수 있다. 방향족기를 함유하는 (메타)아크릴레이트 모노머로는, 벤질(메타)아크릴레이트, 나프틸(메타)아크릴레이트, 페녹시에틸(메타)아크릴레이트, 페녹시부틸(메타)아크릴레이트, 2-(1-나프틸옥시)에틸(메타)아크릴레이트, 2-(2-나프틸옥시)에틸(메타)아크릴레이트, 6-(1-나프틸옥시)헥실(메타)아크릴레이트, 6-(2-나프틸옥시)헥실(메타)아크릴레이트, 8-(1-나프틸옥시)옥틸(메타)아크릴레이트, 8-(2-나프틸옥시)옥틸(메타)아크릴레이트 등을 들 수 있다. 굴절률이 높은 점착제층을 얻기 위해서는, 방향족기를 함유하는 (메타)아크릴레이트 모노머의 적어도 1종 이상을 배합하는 것이 바람직하다.The pressure-sensitive adhesive composition according to the present invention may further contain at least one (meth) acrylate monomer containing an aromatic group as a (meth) acrylate monomer as a main component. Examples of the (meth) acrylate monomer containing an aromatic group include benzyl (meth) acrylate, naphthyl (meth) acrylate, phenoxyethyl (meth) acrylate, phenoxybutyl Naphthyloxy) ethyl (meth) acrylate, 2- (2-naphthyloxy) ethyl (meth) acrylate, 6- Octyl (meth) acrylate, 8- (1-naphthyloxy) octyl (meth) acrylate and 8- (2-naphthyloxy) octyl (meth) acrylate. In order to obtain a pressure-sensitive adhesive layer having a high refractive index, it is preferable to blend at least one or more of (meth) acrylate monomers containing an aromatic group.
이들 방향족기를 함유하는 (메타)아크릴레이트 모노머를, 주성분 모노머인 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머와 혼합함으로써, 얻어지는 점착제층의 굴절률을 상승시켜 조정할 수 있고, 광학 부재간의 굴절률차를 줄여 전반사를 저감시킴으로써 전광선 투과율을 향상시킬 수 있다. 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 방향족기를 함유하는 (메타)아크릴레이트 모노머를 함유시키는 경우에는, 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서 5∼30중량부의 비율로 함유시키는 것이 바람직하다.The refractive index of the obtained pressure-sensitive adhesive layer can be adjusted by adjusting the (meth) acrylate monomer containing these aromatic groups with an alkyl (meth) acrylate monomer having a C1-C14 alkyl group as a main component monomer. By reducing the refractive index difference to reduce the total reflection, the total light transmittance can be improved. When the pressure-sensitive adhesive composition according to the present invention contains a (meth) acrylate monomer containing an aromatic group in the pressure-sensitive adhesive composition, the pressure-sensitive adhesive composition is preferably contained in an amount of 5 to 30 parts by weight based on 100 parts by weight of the (meth) .
또한, 방향족기를 함유하는 (메타)아크릴레이트 모노머를 공중합시킴으로써, 상기 주성분인 (메타)아크릴레이트 모노머 100중량부 중 메틸아크릴레이트 모노머를 20중량부 이상의 비율로 함유시켜 점착제층의 굴절률을 높이는 효과보다, 점착제층의 굴절률을 더욱 높일 수 있다.Further, by copolymerizing a (meth) acrylate monomer containing an aromatic group, the effect of increasing the refractive index of the pressure-sensitive adhesive layer by containing methyl acrylate monomer in a proportion of not less than 20 parts by weight in 100 parts by weight of the main component (meth) acrylate monomer , The refractive index of the pressure-sensitive adhesive layer can be further increased.
또한, 상기와 같이 점착제층의 굴절률을 높이는 방법으로서, 주성분인 (메타)아크릴레이트 모노머 100중량부 중 메틸아크릴레이트 모노머를 20중량부 이상의 비율로 함유시키는 방법과, 방향족기를 함유하는 (메타)아크릴레이트 모노머를 공중합시키는 방법의 두 가지 방법이 있고, 각각의 방법을 단독으로 채용할 수 있지만, 이 두 가지 방법을 병용하는 것이 보다 바람직하다.As a method for increasing the refractive index of the pressure-sensitive adhesive layer as described above, there are a method of containing a methyl acrylate monomer in a proportion of 20 parts by weight or more in 100 parts by weight of a (meth) acrylate monomer as a main component, And a method of copolymerizing a monomer having a hydroxyl group and a method of copolymerizing a monomer having a hydroxyl group, and each of these methods can be employed singly, but it is more preferable to use both of these methods together.
질소 함유 비닐 모노머로는, 예를 들면 N-비닐피롤리돈, N-비닐카프로락탐, (메타)아크릴로일모르폴린 등의 고리형 질소 비닐 화합물, N-에틸-N-메틸(메타)아크릴아미드, N-메틸-N-프로필(메타)아크릴아미드, N-메틸-N-이소프로필(메타)아크릴아미드, N,N-디메틸(메타)아크릴아미드, N,N-디에틸(메타)아크릴아미드, N,N-디프로필(메타)아크릴아미드, N,N-디이소프로필(메타)아크릴아미드, N,N-디부틸(메타)아크릴아미드 등의 디알킬 치환 (메타)아크릴아미드, N-에틸-N-메틸아미노에틸(메타)아크릴레이트, N-메틸-N-프로필아미노에틸(메타)아크릴레이트, N-메틸-N-이소프로필아미노에틸(메타)아크릴레이트, N,N-디메틸아미노메틸(메타)아크릴레이트, N,N-디메틸아미노에틸(메타)아크릴레이트, N,N-디메틸아미노프로필(메타)아크릴레이트, N,N-디메틸아미노부틸(메타)아크릴레이트, N,N-디프로필아미노에틸(메타)아크릴레이트, N,N-디부틸아미노에틸(메타)아크릴레이트 등의 디알킬아미노(메타)아크릴레이트, N-에틸-N-메틸아미노프로필(메타)아크릴아미드, N-메틸-N-프로필아미노프로필(메타)아크릴아미드, N-메틸-N-이소프로필아미노프로필(메타)아크릴아미드, N,N-디메틸아미노프로필(메타)아크릴아미드, N,N-디에틸아미노프로필(메타)아크릴아미드, N,N-디프로필아미노프로필(메타)아크릴아미드, N,N-디메틸아미노에틸(메타)아크릴아미드, N,N-디에틸아미노에틸(메타)아크릴아미드 등의 디알킬 치환 아미노알킬(메타)아크릴아미드 등의 적어도 1종 이상을 들 수 있다.Examples of the nitrogen-containing vinyl monomer include cyclic nitrogen vinyl compounds such as N-vinylpyrrolidone, N-vinylcaprolactam and (meth) acryloylmorpholine, N-ethyl- (Meth) acrylamide, N, N-dimethyl (meth) acrylamide, N, N-diethyl Substituted (meth) acrylamides such as N, N-dipropyl (meth) acrylamide, N, N-diisopropyl (meth) acrylamide and N, N-dibutyl (Meth) acrylate, N-methyl-N-methylaminoethyl (meth) acrylate, N-methyl- (Meth) acrylate, N, N-dimethylaminoethyl (meth) acrylate, N, N-dimethylaminopropyl (meth) Dialkylamino (meth) acrylates such as N, N-dipropylaminoethyl (meth) acrylate and N, N-dibutylaminoethyl (meth) acrylate, N-ethyl- (Meth) acrylamide, N, N-dimethylaminopropyl (meth) acrylamide, N, N-dimethylaminopropyl (meth) acrylamide, , N-diethylaminopropyl (meth) acrylamide, N, N-dipropylaminopropyl (meth) acrylamide, N, N-dimethylaminoethyl (meth) acrylamide, N, ) Acrylamide and dialkyl-substituted aminoalkyl (meth) acrylamides such as acrylamide.
상기 질소 함유 비닐 모노머로는, 후술하는 (C)의 화합물과 구별 가능하게 하기 위해 수산기를 함유하지 않는 것이 바람직하고, 수산기 및 카르복실기를 함유하지 않는 것이 보다 바람직하다. 이러한 모노머로는 상기 예시한 모노머, 예를 들면, N,N-디알킬 치환 아미노기나 N,N-디알킬 치환 아미드기를 함유하는 아크릴계 모노머; N-비닐피롤리돈, N-비닐카프로락탐 등의 N-비닐 치환 락탐류; N-(메타)아크릴로일모르폴린 등의 N-(메타)아크릴로일 치환 고리형 아민류가 바람직하다.The nitrogen-containing vinyl monomer preferably contains no hydroxyl group in order to be distinguishable from the compound (C) described below, and more preferably contains no hydroxyl group and no carboxyl group. Examples of such a monomer include an acrylic monomer containing the above-exemplified monomers, for example, an N, N-dialkyl substituted amino group or an N, N-dialkyl substituted amide group; N-vinyl substituted lactams such as N-vinyl pyrrolidone and N-vinyl caprolactam; And N- (meth) acryloyl-substituted cyclic amines such as N- (meth) acryloylmorpholine.
또한, 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 질소 함유 비닐 모노머는 점착제층에 대해서 필요한 점착력 및 내구성을 부여시킬 수 있다. 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 질소 함유 비닐 모노머는 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서 5∼50중량부인 것이 바람직하다.Further, in the pressure-sensitive adhesive layer according to the present invention, the nitrogen-containing vinyl monomer contained in the pressure-sensitive adhesive composition can impart necessary adhesive strength and durability to the pressure-sensitive adhesive layer. In the pressure-sensitive adhesive layer according to the present invention, the nitrogen-containing vinyl monomer contained in the pressure-sensitive adhesive composition is preferably 5 to 50 parts by weight based on 100 parts by weight of the (meth) acrylate monomer as a main component.
또한, 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 질소 함유 비닐 모노머로는, N-비닐피롤리돈, N,N-디메틸(메타)아크릴아미드, N,N-디에틸(메타)아크릴아미드, N,N-디프로필(메타)아크릴아미드, N,N-디이소프로필(메타)아크릴아미드, N,N-디부틸(메타)아크릴아미드, N,N-디메틸아미노프로필(메타)아크릴아미드, N,N-디에틸아미노프로필(메타)아크릴아미드, N,N-디메틸아미노에틸(메타)아크릴아미드, N-비닐카프로락탐 등이 특히 바람직하게 사용된다.Examples of the nitrogen-containing vinyl monomer contained in the pressure-sensitive adhesive composition of the present invention include N-vinylpyrrolidone, N, N-dimethyl (meth) acrylamide, N, (Meth) acrylamide, N, N-dipropyl (meth) acrylamide, N, N-diisopropyl Acrylamide, N, N-diethylaminopropyl (meth) acrylamide, N, N-dimethylaminoethyl (meth) acrylamide and N-vinylcaprolactam are particularly preferably used.
카르복실기를 함유하는 공중합성 비닐 모노머(카르복실기 함유 모노머)로는, 예를 들면, (메타)아크릴산, 카르복시에틸(메타)아크릴레이트, 카르복시펜틸(메타)아크릴레이트, 2-(메타)아크릴로일옥시에틸헥사히드로프탈산, 2-(메타)아크릴로일옥시프로필헥사히드로프탈산, 2-(메타)아크릴로일옥시에틸프탈산, 2-(메타)아크릴로일옥시에틸숙신산, 2-(메타)아크릴로일옥시에틸말레산, 카르복시폴리카프로락톤모노(메타)아크릴레이트, 2-(메타)아크릴로일옥시에틸테트라히드로프탈산 등의 적어도 1종 이상을 들 수 있다.Examples of the carboxyl group-containing copolymerizable vinyl monomers (carboxyl group-containing monomers) include (meth) acrylic acid, carboxyethyl (meth) acrylate, carboxypentyl (meth) acrylate, 2- (meth) acryloyloxyethyl (Meth) acryloyloxyethylphthalic acid, 2- (meth) acryloyloxyethylsuccinic acid, 2- (meth) acryloyloxyphthalic acid, 2- (Meth) acrylate, carboxypolycaprolactone mono (meth) acrylate, 2- (meth) acryloyloxyethyltetrahydrophthalic acid, and the like.
또한, 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 카르복실기 함유 모노머는 점착제층에 대해서 필요한 응집력을 부여시킬 수 있다. 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 카르복실기 함유 모노머는 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서 0.1∼5중량부인 것이 바람직하다.Further, in the pressure-sensitive adhesive layer according to the present invention, the carboxyl group-containing monomer contained in the pressure-sensitive adhesive composition can impart necessary cohesive force to the pressure-sensitive adhesive layer. In the pressure-sensitive adhesive layer according to the present invention, the carboxyl group-containing monomer contained in the pressure-sensitive adhesive composition is preferably 0.1 to 5 parts by weight based on 100 parts by weight of the (meth) acrylate monomer as the main component.
히드록실기를 함유하는 공중합성 비닐 모노머(히드록실기 함유 모노머)로는, 예를 들면, 8-히드록시옥틸(메타)아크릴레이트, 6-히드록시헥실(메타)아크릴레이트, 4-히드록시부틸(메타)아크릴레이트, 히드록시에틸(메타)아크릴레이트 등의 히드록시알킬(메타)아크릴레이트류나, N-히드록시(메타)아크릴아미드, N-히드록시메틸(메타)아크릴아미드, N-히드록시에틸(메타)아크릴아미드 등의 히드록실기 함유 (메타)아크릴아미드류 등의 적어도 1종 이상을 들 수 있다.Examples of the hydroxyl group-containing copolymerizable vinyl monomers (hydroxyl group-containing monomers) include 8-hydroxyoctyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 4-hydroxybutyl (Meth) acrylates such as hydroxyethyl (meth) acrylate and hydroxyethyl (meth) acrylate, hydroxyalkyl (meth) acrylates such as N-hydroxy (Meth) acrylamides having a hydroxyl group such as hydroxyethyl (meth) acrylamide, and the like.
또한, 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 히드록실기 함유 모노머는, 얻어지는 점착제층이 투명 도전성 필름의 ITO 표면 등 부식되기 쉬운 피착체에 대한 부식성에 영향을 준다고 여겨지는, 카르복실기 함유 모노머의 함유량을 감소시키기 위한 공중합성 모노머로서 사용할 수 있다. 이 때문에, 히드록실기 함유 모노머는 점착제층의 점착력을 향상시키고, 또한 부식성을 저감시키기 위해 유용하게 쓸 수 있다. 본 발명에 따른 점착제층에 있어서, 점착제 조성물에 함유시키는 히드록실기 함유 모노머는 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서 0.1∼5중량부인 것이 바람직하다.In the pressure-sensitive adhesive layer according to the present invention, the hydroxyl group-containing monomer to be contained in the pressure-sensitive adhesive composition is preferably a hydroxyl group-containing monomer which is contained in the pressure-sensitive adhesive layer in which the pressure- Containing monomer may be used as a copolymerizable monomer for reducing the content of the monomer containing the monomer. For this reason, the hydroxyl group-containing monomer can be usefully used for improving the adhesion of the pressure-sensitive adhesive layer and for reducing the corrosiveness. In the pressure-sensitive adhesive layer according to the present invention, the hydroxyl group-containing monomer contained in the pressure-sensitive adhesive composition is preferably 0.1 to 5 parts by weight based on 100 parts by weight of the (meth) acrylate monomer as a main component.
본 발명의 점착제층에 사용되는 점착제 조성물의 공중합체는, (A) 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종 이상을 포함한 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서, (B) 질소 함유 비닐 모노머의 1종 이상을 5∼50중량부와, (C) 카르복실기를 함유하는 공중합성 비닐 모노머 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 적어도 1종 이상을 0.1∼5중량부 함유하는 것이 바람직하다.The copolymer of the pressure-sensitive adhesive composition used in the pressure-sensitive adhesive layer of the present invention comprises (A) 100 weight parts of a (meth) acrylate monomer as a main component containing at least one alkyl (meth) acrylate monomer having an alkyl group of C1- (B) 5 to 50 parts by weight of at least one of nitrogen-containing vinyl monomers and (C) at least one copolymerizable vinyl monomer containing a copolymerizable vinyl monomer and / or a hydroxyl group containing a carboxyl group More preferably 0.1 to 5 parts by weight.
또한, 주성분인 (메타)아크릴레이트 모노머 100중량부에 대해서, 카르복실기를 함유하는 공중합성 비닐 모노머의 1종 이상을 2.0중량부 이하, 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 1종 이상을 5.0중량부 이하의 비율로 함유하는 것이 바람직하다.Also, it is preferable that at least 100 parts by weight of a copolymerizable vinyl monomer containing a carboxyl group is contained in an amount of 2.0 parts by weight or less based on 100 parts by weight of a main (meth) acrylate monomer, and / By weight or more and 5.0 parts by weight or less.
공중합체의 중합 방법은 특별히 한정되지 않으며, 용액 중합법, 유화 중합법 등 적절히 공지된 중합 방법을 사용 가능하다. 공중합체의 중량 평균 분자량은 20만∼200만인 것이 바람직하다.The polymerization method of the copolymer is not particularly limited, and a well-known polymerization method such as a solution polymerization method or an emulsion polymerization method can be used. The weight average molecular weight of the copolymer is preferably 200,000 to 200,000.
상기 공중합체는 아크릴계 폴리머인 것이 바람직하고, (메타)아크릴산에스테르 모노머나 (메타)아크릴산, (메타)아크릴아미드류 등의 아크릴계 모노머를 50∼100중량％ 포함하는 것이 바람직하다.The copolymer is preferably an acrylic polymer, and it is preferable that the copolymer contains 50 to 100% by weight of an acrylic monomer such as (meth) acrylate monomer, (meth) acrylic acid or (meth) acrylamide.
상기 점착제 조성물은, 상기 공중합체에 가교제나 적절히 임의의 첨가제를 배합함으로써, 필요로 되는 물성값 등의 특성을 조정할 수 있다.The pressure-sensitive adhesive composition can be adjusted in properties such as required physical properties by blending a crosslinking agent and optionally an optional additive in the copolymer.
가교제로는, 예를 들면, 헥사메틸렌디이소시아네이트, 이소포론디이소시아네이트, 디페닐메탄디이소시아네이트, 톨릴렌디이소시아네이트, 자일릴렌디이소시아네이트 등의 디이소시아네이트류의 뷰렛 변성체나 이소시아누레이트 변성체, 트리메틸올프로판이나 글리세린 등 3가 이상의 폴리올과의 어덕트체 등의 폴리이소시아네이트 화합물, 금속계 킬레이트 화합물, 에폭시 화합물 등의 적어도 1종 이상을 들 수 있다. 또한, 자외선 등 광가교에 의해 점착제를 가교시켜도 된다.Examples of the crosslinking agent include biuret-modified or isocyanurate-modified products of diisocyanates such as hexamethylene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, tolylene diisocyanate and xylylene diisocyanate, trimethylol A polyisocyanate compound such as an adduct with a tri- or higher-valent polyol such as propane or glycerin, a metal-based chelate compound, and an epoxy compound. Further, the pressure-sensitive adhesive may be crosslinked by photo-crosslinking such as ultraviolet rays.
가교제를 사용하여 공중합체를 가교시키는 경우, 공중합체가 가교제와 가교 반응 가능한 관능기(가교제의 종류에 따라서 다르지만, 히드록실기나 카르복실기 등)를 갖는 것이 바람직하고, 또한, 이들의 관능기를 측쇄에 갖는 모노머를 함유하는 것이 바람직하다. 또한, 점착제 조성물이 (D) 가교제를 0.01∼5중량부 함유하는 것이 바람직하다. 또한, 중량부의 기준은 상기 공중합체에 있어서의 (A) 내지 (C)와 동일하다.When the copolymer is crosslinked using a crosslinking agent, it is preferable that the copolymer has a functional group capable of performing a crosslinking reaction with the crosslinking agent (depending on the type of crosslinking agent, but having a hydroxyl group or a carboxyl group), and further, It is preferable to contain a monomer. The pressure-sensitive adhesive composition preferably contains (D) a crosslinking agent in an amount of 0.01 to 5 parts by weight. The criteria for the parts by weight are the same as those for the copolymers (A) to (C).
그 외 임의의 성분으로서, 실란 커플링제, 산화 방지제, 계면활성제, 경화 촉진제, 가소제, 충전제, 가교 촉매, 가교 지연제, 경화 지연제, 가공 보조제, 노화 방지제 등의 공지된 첨가제를 적절하게 배합할 수 있다. 이들은 단독으로, 또는 2종 이상 함께 사용해도 된다.Known additives such as a silane coupling agent, an antioxidant, a surfactant, a curing accelerator, a plasticizer, a filler, a crosslinking catalyst, a crosslinking retarder, a curing retarder, a processing aid and an antioxidant may be appropriately added . These may be used alone or in combination of two or more.
본 발명의 점착제층은 상기 점착제 조성물을 기재나 이형 필름에 도포한 후, 점착제 조성물을 가교시킴으로써 얻을 수 있다.The pressure-sensitive adhesive layer of the present invention can be obtained by applying the pressure-sensitive adhesive composition to a substrate or a release film, and then crosslinking the pressure-sensitive adhesive composition.
광학 부재의 층간 첩합 등에 사용되는 경우, 얇은 점착제층인 것이 바람직하고, 상기 점착제층의 두께가 1㎛∼20㎛인 것이 바람직하다. 또한, 일반적으로 점착제층의 점착력은 점착제층의 두께에 대략 비례하고 있지만, 두께가 5㎛일 때의 점착력이 4.0(N/25㎜) 이상인 것이 바람직하다. 또한, 점착제층의 두께가 5㎛가 아닌 경우, 「두께가 5㎛일 때의 점착력」(N/25㎜)은 점착제층의 두께를 T(㎛), 점착제층의 점착력을 F(N/25㎜)로 하여, 수식 「(두께가 5㎛일 때의 점착력)〓5F/T」에 의해 추정할 수 있다.When it is used for layer-to-layer bonding of the optical member, it is preferably a thin pressure-sensitive adhesive layer, and the thickness of the pressure-sensitive adhesive layer is preferably 1 m to 20 m. In general, the adhesive force of the pressure-sensitive adhesive layer is approximately proportional to the thickness of the pressure-sensitive adhesive layer, but it is preferable that the adhesive force when the thickness is 5 占 퐉 is 4.0 (N / 25 mm) or more. Further, when the thickness of the pressure-sensitive adhesive layer is not 5 占 퐉, the thickness of the pressure-sensitive adhesive layer is T (占 퐉) and the pressure-sensitive adhesive layer has an adhesion force of F (N / 25 Mm), and can be estimated by the formula " 5F / T " (adhesion force when the thickness is 5 mu m).
본 발명에 따른 점착제층을 광학 부재의 층간 첩합 등에 사용하는 경우, 점착제층과 광학 부재의 계면에서의 광선의 반사를 저감시키기 위해, 굴절률차가 가능한 작은 것이 바람직하다. 이 때문에, 상기 점착제층의 굴절률이 1.47∼1.50인 것이 바람직하다.When the pressure-sensitive adhesive layer according to the present invention is used for layer-to-layer bonding of optical members, it is preferable that the refractive index difference is as small as possible in order to reduce reflection of light rays at the interface between the pressure-sensitive adhesive layer and the optical member. Therefore, the refractive index of the pressure-sensitive adhesive layer is preferably 1.47 to 1.50.
본 발명의 점착 필름은, 본 발명의 점착제층을 기재 또는 이형 필름의 한쪽 면 위에 형성함으로써 제조할 수 있다.The pressure-sensitive adhesive film of the present invention can be produced by forming the pressure-sensitive adhesive layer of the present invention on one side of a substrate or a release film.
점착제층의 형성에 사용되는 기재 필름이나 점착면을 보호하는 이형 필름(세퍼레이터)으로는, 폴리에스테르 필름 등의 수지 필름 등을 사용할 수 있다.As the base film used for forming the pressure-sensitive adhesive layer or the release film (separator) for protecting the pressure-sensitive adhesive surface, a resin film such as a polyester film or the like can be used.
기재 필름에는 수지 필름의 점착제층이 형성된 측과는 반대 면에, 실리콘계, 불소계의 이형제나 코트제, 실리카 미립자 등에 의한 방오 처리, 대전 방지제의 도포나 혼입 등에 의한 대전 방지 처리를 실시할 수 있다.Antistatic treatment with an antifouling treatment with a silicon-based or fluorine-based releasing agent, a coating agent, fine silica particles, antistatic treatment by application or incorporation of an antistatic agent, etc. can be performed on the surface of the base film opposite to the side where the pressure-
이형 필름에는 점착제층의 점착면과 맞춰지는 측의 면에, 실리콘계, 불소계의 이형제 등에 의해 이형 처리가 실시된다.The release film is subjected to releasing treatment by a silicone-based, fluorine-based releasing agent or the like on the side of the pressure-sensitive adhesive layer which is to be brought into contact with the adhesive surface.
1개의 점착제층의 양면에 각각 이형 필름의 이형 처리가 실시된 면을 맞춤으로써, 「이형 필름/점착제층/이형 필름」의 구성으로 할 수도 있다. 이 경우, 양측의 이형 필름을 순차적으로, 혹은 동시에 박리하여 점착면을 표출시킴으로써, 광학 필름 등의 광학 부재와 첩합 가능하게 된다. 광학 필름으로는 편광 필름, 위상차 필름, 반사 방지 필름, 방현(안티 글레어) 필름, 자외선 흡수 필름, 적외선 흡수 필름, 광학 보상 필름, 휘도 향상 필름 등을 들 수 있다.The release film, the pressure-sensitive adhesive layer, and the release film may be formed on both surfaces of one pressure-sensitive adhesive layer by aligning the surfaces subjected to the release treatment of the release film. In this case, the releasing films on both sides are sequentially or simultaneously peeled off to expose the adhesive surface, so that the releasing film can be bonded to an optical member such as an optical film. Examples of the optical film include a polarizing film, a retardation film, an antireflection film, an antiglare film, an ultraviolet absorbing film, an infrared absorbing film, an optical compensating film, and a brightness improving film.
본 발명의 점착 필름은, 편광판을 주로 하는 액정 표시 장치의 주변 부재용의 각종 광학 필름, 터치 패널용의 각종 광학 필름, 전자 종이용의 각종 광학 필름, 유기 일렉트로 루미네센스용의 각종 광학 필름 등의 첩합에 사용할 수 있다.INDUSTRIAL APPLICABILITY The adhesive film of the present invention can be applied to various optical films for peripheral members of a liquid crystal display device mainly including a polarizing plate, various optical films for touch panels, various optical films for electronic species, various optical films for organic electroluminescence Can be used for the fusion of
또한, 이들 광학 필름의 적어도 한쪽 면에 상기 점착제층이 적층되어 이루어지는 점착제층이 형성된 광학 필름으로 할 수 있다. 구체적으로는, 「광학 필름/점착제층/광학 필름」, 「광학 필름/점착제층/이형 필름」, 「광학 필름/점착제층」, 「광학 필름/점착제층/광학 필름/점착제층/광학 필름」, 「광학 필름/점착제층/광학 필름/점착제층/이형 필름」, 「이형 필름/점착제층/광학 필름/점착제층/이형 필름」 등의 구성을 들 수 있다.Further, the optical film may be formed with a pressure-sensitive adhesive layer in which the pressure-sensitive adhesive layer is laminated on at least one surface of these optical films. Specifically, the optical film / pressure-sensitive adhesive layer / optical film, the optical film / pressure-sensitive adhesive layer / release film, the optical film / pressure-sensitive adhesive layer, , "Optical film / pressure-sensitive adhesive layer / optical film / pressure-sensitive adhesive layer / release film", "release film / pressure-sensitive adhesive layer / optical film / pressure-sensitive adhesive layer / release film".
예를 들면, 「광학 필름/점착제층/이형 필름」과 같이 이형 필름으로 보호된 점착제층을 갖는 경우, 이형 필름을 박리하여 「광학 필름/점착제층」과 같이 점착제층을 표출시키고 다른 광학 필름과 첩합함으로써, 점착제층이 층간의 첩합에 사용된 「광학 필름/점착제층/광학 필름」과 같은 구성이 얻어진다.For example, in the case of having a pressure-sensitive adhesive layer protected with a release film such as "optical film / pressure-sensitive adhesive layer / release film", the release film is peeled off to expose the pressure-sensitive adhesive layer like "optical film / pressure- By the conjugation, a configuration similar to that of the "optical film / pressure-sensitive adhesive layer / optical film" in which the pressure-sensitive adhesive layer is used for bonding between the layers is obtained.
실시예Example
이하, 실시예를 통해 본 발명을 구체적으로 설명한다.Hereinafter, the present invention will be described in detail by way of examples.
＜아크릴 공중합체의 제조＞≪ Preparation of acrylic copolymer >
［실시예 1］[Example 1]
교반기, 온도계, 환류 냉각기 및 질소 도입관을 구비한 반응 장치에 질소 가스를 도입하여, 반응 장치 내의 공기를 질소 가스로 치환하였다. 그 후, 반응 장치에 부틸아크릴레이트 70중량부와, 메틸아크릴레이트 30중량부와, N-메틸피롤리돈 10중량부와, 아크릴산 1.5중량부와, 6-히드록시헥실아크릴레이트 0.5중량부와 함께, 용제(초산에틸)를 60중량부 첨가하였다. 그 후, 중합 개시제로서 아조비스이소부티로니트릴 0.1중량부를 2시간에 걸쳐 적하시키고, 65℃에서 6시간 반응시켜, 중량 평균 분자량 50만의 실시예 1에 사용되는 아크릴 공중합체 용액(1)을 얻었다. 아크릴 공중합체의 일부를 채취하여, 후술하는 산가의 측정 시료로 사용하였다.Nitrogen gas was introduced into a reactor equipped with a stirrer, a thermometer, a reflux condenser, and a nitrogen introduction tube to replace the air in the reactor with nitrogen gas. Thereafter, 70 parts by weight of butyl acrylate, 30 parts by weight of methyl acrylate, 10 parts by weight of N-methylpyrrolidone, 1.5 parts by weight of acrylic acid, 0.5 part by weight of 6-hydroxyhexyl acrylate, Together, 60 parts by weight of a solvent (ethyl acetate) was added. Thereafter, 0.1 part by weight of azobisisobutyronitrile as a polymerization initiator was added dropwise over 2 hours and reacted at 65 DEG C for 6 hours to obtain an acrylic copolymer solution (1) used in Example 1 having a weight average molecular weight of 500,000 . A part of the acrylic copolymer was sampled and used as a measurement sample of the acid value described later.
［실시예 2∼6 및 비교예 1∼3］[Examples 2 to 6 and Comparative Examples 1 to 3]
모노머의 조성을 각각 표 1의 (A), (B), (C-1), (C-2)의 기재와 같이 하는 것 이외에는, 상기 실시예 1에 사용되는 아크릴 공중합체 용액(1)과 동일하게 하여, 실시예 2∼6 및 비교예 1∼3에 사용되는 아크릴 공중합체 용액을 얻었다. 또한, 특별히 측정 결과를 나타내지 않지만, 실시예 2∼6 및 비교예 1∼3의 아크릴 공중합체 용액에 포함되는 공중합체의 중량 평균 분자량은 20만∼200만의 범위 내이다.Was the same as the acrylic copolymer solution (1) used in Example 1, except that the composition of the monomers was changed as shown in Table 1 (A), (B), (C-1) To obtain an acrylic copolymer solution used in Examples 2 to 6 and Comparative Examples 1 to 3. In addition, although the measurement results are not particularly shown, the weight average molecular weight of the copolymer contained in the acrylic copolymer solutions of Examples 2 to 6 and Comparative Examples 1 to 3 is in the range of 200,000 to 2,000,000.
＜점착제 조성물, 점착제층 및 점착 필름의 제조＞≪ Preparation of pressure-sensitive adhesive composition, pressure-sensitive adhesive layer and pressure-
［실시예 1］[Example 1]
상기와 같이 제조한 실시예 1의 아크릴 공중합체 용액(1)에 대해서, 코로네이트 L-45(톨릴렌디이소시아네이트(TDI) 화합물의 어덕트체) 0.3중량부를 첨가하고 교반 혼합하여, 실시예 1의 점착제 조성물을 얻었다. 이 점착제 조성물을 실리콘 수지 코트된 폴리에틸렌테레프탈레이트(PET) 필름으로 이루어지는 박리 필름 위에 도포한 후, 90℃에서 건조시킴으로써 용제를 제거하였다. 그 후, 23℃, 50％RH의 분위기하에서 7일간 에이징함으로써, 점착제 조성물을 가교시켜 이루어지는 점착제층을 박리 필름의 한쪽 면 위에 갖는 실시예 1의 점착 필름을 얻었다.0.3 parts by weight of Coronate L-45 (an adduct of a tolylene diisocyanate (TDI) compound) was added to the acrylic copolymer solution (1) of Example 1 prepared as described above, followed by stirring and mixing. To obtain a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition was coated on a release film made of a polyethylene terephthalate (PET) film coated with silicone resin, and then dried at 90 캜 to remove the solvent. Thereafter, the adhesive film was aged for 7 days in an atmosphere of 23 DEG C and 50% RH to obtain an adhesive film of Example 1 having a pressure-sensitive adhesive layer formed by crosslinking the pressure-sensitive adhesive composition on one side of the release film.
［실시예 2∼6 및 비교예 1∼3］[Examples 2 to 6 and Comparative Examples 1 to 3]
첨가제의 조성을 각각 표 1의 (D)의 기재와 같이 하는 것 이외에는, 상기 실시예 1의 점착 필름과 동일하게 하여, 실시예 2∼6 및 비교예 1∼3의 점착 필름을 얻었다.The pressure-sensitive adhesive films of Examples 2 to 6 and Comparative Examples 1 to 3 were obtained in the same manner as in the pressure-sensitive adhesive film of Example 1, except that the composition of the additives was changed as shown in Table 1 (D).
표 1에서는, (A)군의 합계를 100중량부로 하여 구한 (B)군 내지 (D)군까지의 첨가 비율로서, 중량부의 수치를 괄호로 둘러싸 나타낸다.In Table 1, numerical values in parts by weight are enclosed in parentheses as the addition ratios from the groups (B) to (D) determined by taking the total of the group (A) as 100 parts by weight.
또한, 표 1에 사용된 각 성분의 약기호의 화합물명을 표 2에 나타낸다. 한편, 코로네이트(등록상표) L-45는 니혼 폴리우레탄 공업 주식회사의 상품명이고, D-110N은 미츠이 화학 주식회사의 상품명이다. TDI는 톨릴렌디이소시아네이트를 의미하고, XDI는 자일릴렌디이소시아네이트를 의미한다.Table 2 shows the chemical names of the weak symbols of each component used in Table 1. < tb > < TABLE > On the other hand, Coronate (registered trademark) L-45 is a trade name of Nippon Polyurethane Industry Co., Ltd., and D-110N is a trade name of Mitsui Chemicals, TDI means tolylene diisocyanate, and XDI means xylylene diisocyanate.
＜시험 방법 및 평가＞<Test Method and Evaluation>
실시예 1∼6 및 비교예 1∼3에 있어서의 점착 필름으로부터 박리 필름(실리콘 수지 코트된 PET 필름)을 박리하여 점착제층을 표출시키고, 편광판(필름)의 한쪽 면에 점착제층을 전사하였다.A release film (PET film coated with a silicone resin) was peeled from the pressure-sensitive adhesive films in Examples 1 to 6 and Comparative Examples 1 to 3 to expose the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer was transferred to one side of the polarizer (film).
＜점착력의 측정 방법＞≪ Measurement method of adhesive force >
두께 180㎛인 편광판(필름)의 한쪽 면에 점착제층을 전사하여, 시료가 되는 점착 필름(점착제층이 형성된 광학 필름)을 얻었다.The pressure-sensitive adhesive layer was transferred onto one side of a polarizing plate (film) having a thickness of 180 占 퐉 to obtain a pressure-sensitive adhesive film (optical film on which a pressure-sensitive adhesive layer was formed) serving as a sample.
이 점착 필름을 소다 석회 유리의 아세톤으로 세정한 비주석면에, 압착 롤로 첩합하였다. 그 후, 50℃, 0.5MPa×20분간의 조건에서 오토클레이브 처리한 후, 23℃×50％RH의 분위기하에 되돌리고, 1시간 경과 후의 점착 필름의 박리 강도를 인장 시험기에 의해 측정하였다. JIS Z0237 「점착 테이프·점착 시트 시험 방법」에 준거하여 측정하고, 180°방향으로 300㎜/min의 속도로 박리했을 때의 박리 강도를 점착 필름의 점착제층의 점착력으로 하였다.This adhesive film was bonded to a non-asbestos surface washed with acetone of soda lime glass with a compression roll. Thereafter, the film was autoclaved under the conditions of 50 占 폚 and 0.5 MPa 占 폚 for 20 minutes, then returned to an atmosphere of 23 占 폚 占 50% RH, and the peel strength of the adhesive film after 1 hour was measured by a tensile tester. The peeling strength when measured in accordance with JIS Z0237 " Test Method for Adhesive Tape / Adhesive Sheet ", and peeled at a rate of 300 mm / min in the 180 占 direction was regarded as the adhesive strength of the adhesive layer of the adhesive film.
＜밀착성의 시험 방법＞≪ Test method of adhesion >
점착력을 측정한 후의 시료인 점착 필름의 점착제층을 육안으로 확인하고, 기재층의 편광판(필름)으로부터의 탈락 상태로 밀착성을 판단하였다.The pressure-sensitive adhesive layer of the pressure-sensitive adhesive film as a sample after the measurement of the pressure-sensitive adhesive force was visually confirmed, and adhesion was judged by the state of being separated from the polarizing plate (film) of the base layer.
○…기재층으로부터 점착제층이 전혀 탈락되어 있지 않다.○ ... The pressure-sensitive adhesive layer is not completely removed from the substrate layer.
△…기재층으로부터 점착제층이 일부 떠올라 탈락되어 있다.△ ... The pressure-sensitive adhesive layer partially falls from the substrate layer.
×…기재층으로부터 점착제층이 탈락되어, 피착체인 유리에 전착되어 있다.× ... The pressure-sensitive adhesive layer is detached from the base layer and is electrodeposited on the glass as the adherend.
＜내구성의 시험 방법＞<Test method of durability>
점착력의 측정과 동일한 방법으로 제작한 사방 10㎝의 점착 필름을, 동일한 방법으로 소다 석회 유리의 비주석면에 첩합하여 시료를 제작하였다. 이 시료를 60℃×90％RH의 분위기하에 250시간 방치한 후, 23℃×50％RH 분위기하에 취출하고, 1시간 후에 점착 필름의 상태를 육안으로 관찰하여 내구성을 판단하였다.A 10 cm square adhesive film produced in the same manner as in the measurement of the adhesive force was applied to the non-asbestos surface of the soda lime glass in the same manner to prepare a sample. The sample was allowed to stand in an atmosphere of 60 ° C × 90% RH for 250 hours, then taken out in an atmosphere of 23 ° C × 50% RH, and after 1 hour, the state of the adhesive film was visually observed to determine durability.
○…점착 필름의 박리 및 발포가 전혀 없다.○ ... There is no peeling or foaming of the adhesive film at all.
△…점착 필름의 일부에 박리 및 발포가 발생되어 있다.△ ... Peeling and foaming are generated on a part of the adhesive film.
×…점착 필름의 전체에 박리 및 발포가 발생되어 있다.× ... Peeling and foaming are generated in the whole of the adhesive film.
＜굴절률의 측정 방법＞<Method of measuring refractive index>
23℃의 점착제층의 굴절률을 아베식 굴절계(메이커명: ERMA, 형식: ER-2S)로 측정한다.The refractive index of the pressure-sensitive adhesive layer at 23 캜 is measured with an Abbe refractometer (manufacturer: ERMA, model: ER-2S).
표 3에 평가 결과를 나타낸다.Table 3 shows the evaluation results.
실시예 1∼6의 점착 필름은 두께 5㎛인 점착제층의 점착력이 4.0N/25㎜ 이상이고, 점착제층의 굴절률이 1.47∼1.50의 범위 내이며, 밀착성 및 내구성도 우수하였다. 즉, 실시예 1∼6의 점착 필름에서는 요구 사항 및 문제를 극복할 수 있었다.The pressure-sensitive adhesive films of Examples 1 to 6 had a pressure-sensitive adhesive strength of 4.0 N / 25 mm or more and a refractive index of the pressure-sensitive adhesive layer within a range of 1.47 to 1.50, respectively, and had excellent adhesion and durability. That is, the requirements and problems were overcome in the adhesive films of Examples 1 to 6.
표 4에, 실시예 1, 3의 점착제 조성물을 사용하여 동일한 방법으로 제조한, 두께 3㎛, 5㎛, 10㎛, 15㎛, 20㎛인 점착제층의 점착 필름에 대해 점착력을 측정한 결과를 나타낸다. 실시예 1, 3의 점착제 조성물을 사용한 점착제층의 점착력은, 일반적으로 알려진 바와 같이 점착제층의 두께에 대략 비례하고 있다는 것을 알 수 있다.Table 4 shows the results of measuring the adhesive force of the pressure-sensitive adhesive films of the pressure-sensitive adhesive layers having thicknesses of 3 占 퐉, 5 占 퐉, 10 占 퐉, 15 占 퐉 and 20 占 퐉 produced by the same method using the pressure-sensitive adhesive compositions of Examples 1 and 3 . It can be seen that the adhesive strength of the pressure-sensitive adhesive layer using the pressure-sensitive adhesive composition of Examples 1 and 3 is approximately proportional to the thickness of the pressure-sensitive adhesive layer as is generally known.
비교예 1의 점착 필름은 점착제 조성물에 질소 함유 모노머를 포함하지 않기 때문인지, 두께 5㎛인 점착제층의 점착력이 약하였다. 또한, 점착제층의 굴절률이 낮고, 밀착성 및 내구성도 떨어져 있었다.The pressure-sensitive adhesive film of Comparative Example 1 did not contain the nitrogen-containing monomer in the pressure-sensitive adhesive composition, and the adhesive strength of the pressure-sensitive adhesive layer having a thickness of 5 占 퐉 was weak. Further, the refractive index of the pressure-sensitive adhesive layer was low, and adhesion and durability were also deteriorated.
비교예 2의 점착 필름은 점착제 조성물에 카르복실기를 함유하는 공중합성 비닐 모노머의 배합량이 지나치게 많기 때문인지, 두께 5㎛인 점착제층의 점착력이 약하였다. 또한, 점착제층의 굴절률이 낮고, 밀착성 및 내구성도 다소 떨어져 있었다.The pressure-sensitive adhesive film of Comparative Example 2 was poor in adhesive strength of the pressure-sensitive adhesive layer having a thickness of 5 占 퐉, because the compounding amount of the copolymerizable vinyl monomer containing a carboxyl group in the pressure-sensitive adhesive composition was too large. Further, the refractive index of the pressure-sensitive adhesive layer was low, and adhesion and durability were also somewhat deteriorated.
비교예 3의 점착 필름은 점착제 조성물에 카르복실기를 함유하는 공중합성 비닐 모노머도 히드록실기를 함유하는 공중합성 비닐 모노머도 포함하지 않기 때문인지, 두께 5㎛인 점착제층의 점착력이 약하였다. 또한, 점착제층의 굴절률이 낮고, 밀착성 및 내구성도 떨어져 있었다.The pressure-sensitive adhesive film of Comparative Example 3 had a poor adhesion to the pressure-sensitive adhesive layer having a thickness of 5 占 퐉, because neither the copolymerized vinyl monomer containing a carboxyl group nor the copolymerizable vinyl monomer containing a hydroxyl group was present in the pressure-sensitive adhesive composition. Further, the refractive index of the pressure-sensitive adhesive layer was low, and adhesion and durability were also deteriorated.
이와 같이, 비교예 1∼3의 점착 필름에서는 종래의 요구 사항 및 문제를 극복할 수 없었다.Thus, the adhesive films of Comparative Examples 1 to 3 can not overcome the conventional requirements and problems.
Claims (12)
상기 점착제 조성물이, (A) 알킬기의 탄소수가 C1∼C14인 알킬(메타)아크릴레이트 모노머의 적어도 1종 이상을 포함한 (메타)아크릴레이트 모노머 100중량부에 대해서, (B) 질소 함유 비닐 모노머의 1종 이상을 5∼50중량부와, (C) 카르복실기를 함유하는 공중합성 비닐 모노머 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 적어도 1종 이상을 0.1∼5중량부 함유하는 중량 평균 분자량 20만∼200만의 공중합체, 및 (D) 가교제를 0.01∼5중량부 함유하며,
상기 점착제층의 두께가 1㎛∼10㎛이고, 두께가 5㎛일 때의 점착력이 4.0(N/25㎜) 이상이고,
피착체에 상기 점착제층이 형성된 점착 필름을 첩합하기 전에 에이징 처리가 이미 실시되어, 피착체에 상기 점착제층이 형성된 점착 필름을 첩합한 후에는 에이징 처리를 실시할 필요가 없는 점착제층.A pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition comprising an acrylic polymer cross-
Wherein the pressure-sensitive adhesive composition comprises (A) 100 parts by weight of a (meth) acrylate monomer containing at least one alkyl (meth) acrylate monomer having an alkyl group having from 1 to 14 carbon atoms, (B) (C) 0.1 to 5 parts by weight of at least one copolymerizable vinyl monomer containing a carboxyl group and a copolymerizable vinyl monomer containing a hydroxyl group, A copolymer having a molecular weight of 200,000 to 2,000,000, and (D) a crosslinking agent in an amount of 0.01 to 5 parts by weight,
Wherein the pressure-sensitive adhesive layer has a thickness of 1 占 퐉 to 10 占 퐉 and an adhesive force of 4.0 (N / 25mm) or more when the thickness is 5 占 퐉,
A pressure-sensitive adhesive layer which does not need to be subjected to an aging treatment after the aging treatment has already been carried out before the adhesion of the pressure-sensitive adhesive film on which the pressure-sensitive adhesive layer is formed to the adherend and the pressure-
상기 점착제 조성물이 상기 (메타)아크릴레이트 모노머 100중량부 중, 메틸아크릴레이트 모노머를 20중량부 이상의 비율로 함유하는 점착제층.The method according to claim 1,
Wherein the pressure-sensitive adhesive composition comprises, in 100 parts by weight of the (meth) acrylate monomer, a methyl acrylate monomer in a proportion of 20 parts by weight or more.
상기 점착제 조성물이 상기 (메타)아크릴레이트 모노머 100중량부에 대해서, 카르복실기를 함유하는 공중합성 비닐 모노머의 1종 이상을 0.1∼2.0중량부, 및/또는 히드록실기를 함유하는 공중합성 비닐 모노머의 1종 이상을 0.1∼5.0중량부의 비율로 함유하는 점착제층.3. The method according to claim 1 or 2,
Wherein the pressure-sensitive adhesive composition comprises 0.1 to 2.0 parts by weight of at least one copolymerizable vinyl monomer containing a carboxyl group, and / or a copolymerizable vinyl monomer containing a hydroxyl group, based on 100 parts by weight of the (meth) acrylate monomer And 0.1 to 5.0 parts by weight of at least one of them.
상기 점착제층의 굴절률이 1.47∼1.50인 점착제층.3. The method according to claim 1 or 2,
Wherein the pressure-sensitive adhesive layer has a refractive index of 1.47 to 1.50.
상기 점착제층의 굴절률이 1.47∼1.50인 점착제층.The method of claim 3,
Wherein the pressure-sensitive adhesive layer has a refractive index of 1.47 to 1.50.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012274796A JP6013898B2 (en) | 2012-12-17 | 2012-12-17 | Adhesive layer and adhesive film |
| JPJP-P-2012-274796 | 2012-12-17 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150120906A Division KR101701891B1 (en) | 2012-12-17 | 2015-08-27 | Adhesive layer and adhesive film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20140078537A KR20140078537A (en) | 2014-06-25 |
| KR101622945B1 true KR101622945B1 (en) | 2016-05-20 |
Family
ID=50904477
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020130139689A KR101622945B1 (en) | 2012-12-17 | 2013-11-18 | Adhesive layer and adhesive film |
| KR1020150120906A KR101701891B1 (en) | 2012-12-17 | 2015-08-27 | Adhesive layer and adhesive film |
| KR1020170011789A KR101799801B1 (en) | 2012-12-17 | 2017-01-25 | Adhesive layer and adhesive film |
| KR1020170151985A KR101908291B1 (en) | 2012-12-17 | 2017-11-15 | Adhesive layer and adhesive film |
| KR1020180076826A KR102088171B1 (en) | 2012-12-17 | 2018-07-03 | Adhesive layer and adhesive film |
| KR1020190148179A KR102270910B1 (en) | 2012-12-17 | 2019-11-19 | Adhesive layer and adhesive film |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150120906A KR101701891B1 (en) | 2012-12-17 | 2015-08-27 | Adhesive layer and adhesive film |
| KR1020170011789A KR101799801B1 (en) | 2012-12-17 | 2017-01-25 | Adhesive layer and adhesive film |
| KR1020170151985A KR101908291B1 (en) | 2012-12-17 | 2017-11-15 | Adhesive layer and adhesive film |
| KR1020180076826A KR102088171B1 (en) | 2012-12-17 | 2018-07-03 | Adhesive layer and adhesive film |
| KR1020190148179A KR102270910B1 (en) | 2012-12-17 | 2019-11-19 | Adhesive layer and adhesive film |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6013898B2 (en) |
| KR (6) | KR101622945B1 (en) |
| CN (1) | CN103865445B (en) |
| TW (2) | TWI568814B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6057693B2 (en) * | 2012-12-17 | 2017-01-11 | 藤森工業株式会社 | Adhesive layer and adhesive film |
| CN109554143A (en) * | 2014-03-31 | 2019-04-02 | 日东电工株式会社 | Pressure-sensitive adhesive for optical films composition, pressure-sensitive adhesive for optical films layer, optical film and image display device with adhesive phase |
| JP6644971B2 (en) * | 2014-08-06 | 2020-02-12 | 藤森工業株式会社 | Adhesive layer and adhesive film |
| JP6620325B2 (en) * | 2014-08-06 | 2019-12-18 | 藤森工業株式会社 | Adhesive layer and adhesive film |
| JP6511659B2 (en) * | 2015-06-08 | 2019-05-15 | 藤森工業株式会社 | Pressure-sensitive adhesive layer for optical film, and pressure-sensitive adhesive film for optical film |
| JP6544689B2 (en) * | 2015-11-25 | 2019-07-17 | 株式会社ケーイーアール | Operation grip and moving body |
| CN107987214B (en) * | 2016-10-26 | 2020-11-27 | 宁波激智科技股份有限公司 | Diffusion particles suitable for aqueous adhesive system and preparation method thereof |
| JP6688822B2 (en) * | 2017-03-29 | 2020-04-28 | 日東電工株式会社 | One-sided protective polarizing film with adhesive layer, image display device and continuous production method thereof |
| JP6730348B2 (en) * | 2017-03-29 | 2020-07-29 | 日東電工株式会社 | One-sided protective polarizing film with adhesive layer, image display device and continuous production method thereof |
| JP7153459B2 (en) * | 2018-03-28 | 2022-10-14 | 日東電工株式会社 | Adhesive layer, piece protective polarizing film with adhesive layer, image display device and continuous production method thereof |
| JP6859248B2 (en) * | 2017-10-26 | 2021-04-14 | 日本カーバイド工業株式会社 | Adhesive film and adhesive sheet |
| WO2020095878A1 (en) * | 2018-11-06 | 2020-05-14 | Dic株式会社 | Adhesive composition, adhesive layer, sheet and tape |
| JP6644129B2 (en) | 2018-12-27 | 2020-02-12 | 藤森工業株式会社 | Adhesive layer and adhesive film |
| JP6775616B2 (en) * | 2019-01-23 | 2020-10-28 | 藤森工業株式会社 | An adhesive layer for an optical film, an adhesive film for an optical film, and an adhesive composition for an optical film for producing them. |
| JP6777771B2 (en) * | 2019-01-23 | 2020-10-28 | 藤森工業株式会社 | Adhesive layer for optical film and adhesive film for optical film |
| JP6775042B2 (en) * | 2019-01-23 | 2020-10-28 | 藤森工業株式会社 | An adhesive layer for an optical film, an adhesive film for an optical film, and an adhesive composition for an optical film for producing them. |
| JP7092823B2 (en) * | 2020-04-07 | 2022-06-28 | 藤森工業株式会社 | Adhesive layer and adhesive film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006301572A (en) | 2004-11-30 | 2006-11-02 | Fuji Photo Film Co Ltd | Polarizing plate and liquid crystal display device using same |
| WO2011111575A1 (en) | 2010-03-10 | 2011-09-15 | 日東電工株式会社 | Adhesive sheet for optical use |
Family Cites Families (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006293281A (en) | 2005-03-17 | 2006-10-26 | Seiko Epson Corp | Optical component and projector |
| JP4800722B2 (en) | 2005-09-26 | 2011-10-26 | 日東電工株式会社 | Optical pressure-sensitive adhesive composition, optical pressure-sensitive adhesive layer, optical member with a pressure-sensitive adhesive layer, method for producing the same, and image display device |
| JP2007297452A (en) * | 2006-04-28 | 2007-11-15 | Daio Paper Corp | Adhesive sheet |
| JP2009091522A (en) | 2007-10-12 | 2009-04-30 | Toyo Ink Mfg Co Ltd | Adhesive composition and laminate obtained by using the same |
| JP5340649B2 (en) * | 2007-10-22 | 2013-11-13 | 日東電工株式会社 | Optical film pressure-sensitive adhesive composition, optical film pressure-sensitive adhesive layer, production method thereof, pressure-sensitive adhesive optical film, and image display device |
| JP5871297B2 (en) * | 2007-11-02 | 2016-03-01 | 日東電工株式会社 | Adhesive optical film, method for producing the same, and image display device |
| EP2072552A3 (en) * | 2007-12-20 | 2009-07-29 | Nitto Denko Corporation | Pressure-sensitive adhesive composition for optical films, pressure-sensitive adhesive optical film and image display |
| JP5379409B2 (en) * | 2008-02-15 | 2013-12-25 | 日東電工株式会社 | Adhesive composition for optical film, adhesive optical film, and image display device |
| KR20100029512A (en) * | 2008-09-08 | 2010-03-17 | 주식회사 엘지화학 | Pressure-sensitive adhesive compositions and pressure-sensitive adhesive films comprising the same |
| KR101455302B1 (en) * | 2008-09-24 | 2014-10-27 | 동우 화인켐 주식회사 | Adhesive composition and polarizing plate using the same |
| JP5243197B2 (en) * | 2008-11-18 | 2013-07-24 | 日東電工株式会社 | Optical member pressure-sensitive adhesive composition, optical member pressure-sensitive adhesive layer, pressure-sensitive adhesive optical member, and image display device |
| JP2010155974A (en) * | 2008-12-01 | 2010-07-15 | Nitto Denko Corp | Acrylic pressure sensitive adhesive sheet, method of manufacturing the same, and laminated constitution |
| KR101098401B1 (en) * | 2009-02-27 | 2011-12-26 | 고려대학교 산학협력단 | fabricating method of Field Effect Transistor using Ⅲ-Ⅴ compound semiconductor |
| JP2010285548A (en) * | 2009-06-11 | 2010-12-24 | Nitto Denko Corp | Adhesive tape for optical member |
| TWI486417B (en) * | 2009-11-17 | 2015-06-01 | Soken Kagaku Kk | A polarizing plate adhesive composition, and a polarizing plate obtained by using the polarizing plate |
| CN102181244B (en) * | 2009-12-29 | 2014-02-12 | 第一毛织株式会社 | Adhesive binder and preparation method thereof, composition, method for manufacturing adhesive binder layer and optical member |
| JP5524640B2 (en) | 2010-01-26 | 2014-06-18 | 大王製紙株式会社 | Adhesive sheet |
| JP5540847B2 (en) * | 2010-04-08 | 2014-07-02 | 藤倉化成株式会社 | Acrylic adhesive composition and adhesive film |
| JP5800469B2 (en) * | 2010-05-27 | 2015-10-28 | 綜研化学株式会社 | Adhesive composition for optical member and adhesive sheet |
| JP2012021148A (en) * | 2010-06-16 | 2012-02-02 | Nippon Synthetic Chem Ind Co Ltd:The | Pressure-sensitive adhesive, pressure-sensitive adhesive for optical member, optical member with pressure-sensitive adhesive layer and image display device |
| WO2012050049A1 (en) * | 2010-10-12 | 2012-04-19 | 日本合成化学工業株式会社 | Adhesive composition for optical components, adhesive for optical components, optical component with adhesive layer, and image display device |
| JP2012135951A (en) * | 2010-12-27 | 2012-07-19 | Mitsubishi Plastics Inc | Polyester film for double-sided adhesive tape |
| KR101385033B1 (en) * | 2010-12-31 | 2014-04-14 | 제일모직주식회사 | Acrylic Adhesive Composition |
| JP5583048B2 (en) | 2011-02-14 | 2014-09-03 | リンテック株式会社 | Optical pressure-sensitive adhesive composition, optical pressure-sensitive adhesive layer, and optical pressure-sensitive adhesive laminate |
| JP5758647B2 (en) * | 2011-02-17 | 2015-08-05 | 日東電工株式会社 | Optical adhesive sheet |
| JP5614328B2 (en) | 2011-02-25 | 2014-10-29 | 藤倉化成株式会社 | Adhesive composition, adhesive film, and optical component |
| JP5842439B2 (en) * | 2011-03-10 | 2016-01-13 | 住友化学株式会社 | Optical film with adhesive and optical laminate using the same |
| JP5760571B2 (en) | 2011-03-24 | 2015-08-12 | Dic株式会社 | Colored adhesive tape for fixing polarizing film |
| JP5683369B2 (en) * | 2011-04-22 | 2015-03-11 | 藤森工業株式会社 | Adhesive composition and surface protective film |
| JP5887066B2 (en) * | 2011-05-17 | 2016-03-16 | 綜研化学株式会社 | Adhesive composition for optical member and processed product thereof |
| JP5821309B2 (en) | 2011-06-14 | 2015-11-24 | 住友化学株式会社 | Light diffusing adhesive sheet, polarizing plate and liquid crystal display panel |
-
2012
- 2012-12-17 JP JP2012274796A patent/JP6013898B2/en active Active
-
2013
- 2013-11-18 KR KR1020130139689A patent/KR101622945B1/en active IP Right Grant
- 2013-11-22 TW TW104122869A patent/TWI568814B/en active
- 2013-11-22 TW TW102142715A patent/TWI496860B/en active
- 2013-11-26 CN CN201310610818.0A patent/CN103865445B/en active Active
-
2015
- 2015-08-27 KR KR1020150120906A patent/KR101701891B1/en active IP Right Grant
-
2017
- 2017-01-25 KR KR1020170011789A patent/KR101799801B1/en active IP Right Grant
- 2017-11-15 KR KR1020170151985A patent/KR101908291B1/en active IP Right Grant
-
2018
- 2018-07-03 KR KR1020180076826A patent/KR102088171B1/en active IP Right Grant
-
2019
- 2019-11-19 KR KR1020190148179A patent/KR102270910B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006301572A (en) | 2004-11-30 | 2006-11-02 | Fuji Photo Film Co Ltd | Polarizing plate and liquid crystal display device using same |
| WO2011111575A1 (en) | 2010-03-10 | 2011-09-15 | 日東電工株式会社 | Adhesive sheet for optical use |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140078537A (en) | 2014-06-25 |
| JP6013898B2 (en) | 2016-10-25 |
| KR102270910B1 (en) | 2021-06-29 |
| JP2014118485A (en) | 2014-06-30 |
| KR101701891B1 (en) | 2017-02-02 |
| KR102088171B1 (en) | 2020-03-12 |
| KR101799801B1 (en) | 2017-11-21 |
| TW201538659A (en) | 2015-10-16 |
| CN103865445B (en) | 2016-08-24 |
| KR101908291B1 (en) | 2018-10-16 |
| KR20150105276A (en) | 2015-09-16 |
| KR20170129655A (en) | 2017-11-27 |
| CN103865445A (en) | 2014-06-18 |
| TW201428075A (en) | 2014-07-16 |
| KR20170015411A (en) | 2017-02-08 |
| KR20180079280A (en) | 2018-07-10 |
| TWI496860B (en) | 2015-08-21 |
| KR20190131007A (en) | 2019-11-25 |
| TWI568814B (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101908291B1 (en) | Adhesive layer and adhesive film | |
| KR101908916B1 (en) | Adhesive layer and adhesive film | |
| KR101968917B1 (en) | Adhesive layer and adhesive film | |
| KR101707841B1 (en) | Light-diffusing adhesive layer and light-diffusing adhesive film | |
| KR101953605B1 (en) | Adhesive layer and adhesive film | |
| JP7092823B2 (en) | Adhesive layer and adhesive film | |
| JP6920483B2 (en) | Adhesive layer and adhesive film | |
| JP6744289B2 (en) | Adhesive layer and adhesive film | |
| JP6207109B2 (en) | Adhesive layer and adhesive film | |
| JP6810185B2 (en) | Adhesive layer and adhesive film | |
| JP2022090111A (en) | Adhesive film | |
| JP2020063428A (en) | Light diffusion adhesive film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| AMND | Amendment | ||
| E601 | Decision to refuse application | ||
| A107 | Divisional application of patent | ||
| AMND | Amendment | ||
| E902 | Notification of reason for refusal | ||
| AMND | Amendment | ||
| X701 | Decision to grant (after re-examination) | ||
| GRNT | Written decision to grant |