WO2015080536A1 - 점착제 조성물 - Google Patents
점착제 조성물 Download PDFInfo
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- WO2015080536A1 WO2015080536A1 PCT/KR2014/011627 KR2014011627W WO2015080536A1 WO 2015080536 A1 WO2015080536 A1 WO 2015080536A1 KR 2014011627 W KR2014011627 W KR 2014011627W WO 2015080536 A1 WO2015080536 A1 WO 2015080536A1
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- WIPO (PCT)
- Prior art keywords
- sensitive adhesive
- pressure
- weight
- adhesive composition
- block
- Prior art date
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Classifications
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- 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
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- 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
- C09J201/00—Adhesives based on unspecified macromolecular compounds
- C09J201/02—Adhesives based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
- C09J201/025—Adhesives based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups containing nitrogen atoms
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- 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
- C09J7/22—Plastics; Metallised plastics
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- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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- 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
- C09J2433/00—Presence of (meth)acrylic polymer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Definitions
- the present application relates to an adhesive composition, a protective film, an optical laminate, a polarizing plate, and a display device.
- the adhesive can be used for various applications.
- the adhesive is an application for attaching an optical film such as a polarizing plate or a retardation film to a display device such as a liquid crystal display device (hereinafter referred to as "LCD device"), or an optical film such as the polarizing plate or retardation film. It can be used for the purpose of laminating each other.
- the adhesive used for an optical film etc. may require cohesion force, adhesive force, reworkability, or low light leakage property with excellent transparency.
- the adhesive composition for optics for achieving the above physical property is proposed.
- the pressure-sensitive adhesive may be required for antistatic properties.
- Patent Documents 4 and 5 describe an adhesive for securing antistatic property.
- Patent Document 1 Republic of Korea Patent No. 1023839
- Patent Document 2 Republic of Korea Patent No. 1171976
- Patent Document 3 Republic of Korea Patent No. 1171977
- Patent Document 4 Japanese Patent Publication No. 2009-173875
- Patent Document 5 Korean Unexamined Patent Publication No. 2008-0024215
- the present application provides an adhesive composition, a protective film, an optical laminate, a polarizing plate, and a display device.
- Exemplary pressure-sensitive adhesive composition may include a block copolymer.
- block copolymer may refer to a copolymer comprising blocks of different polymerized monomers.
- the block copolymer may include a first block having a glass transition temperature of 50 ° C. or more and a second block having a glass transition temperature of ⁇ 10 ° C. or less.
- the "glass transition temperature of a predetermined block" of a block copolymer may mean a glass transition temperature measured from a polymer formed only of monomers included in the block.
- the glass transition temperature of the first block is at least 60 °C, at least 65 °C, at least 70 °C, at least 75 °C, at least 80 °C, at least 85 °C, at least 90 °C, at least 95 °C, at least 100 °C or 105 It may be at least °C.
- the upper limit of the glass transition temperature of the said 1st block in this application is not specifically limited.
- the glass transition temperature of the first block may be 150 ° C. or less, 140 ° C. or less, 130 ° C. or less, 120 ° C. or less, or 115 ° C. or less.
- the glass transition temperature of the second block may be, for example, -20 ° C or less, -30 ° C or less, -35 ° C or less, or -40 ° C or less.
- the lower limit of the glass transition temperature of the second block is not particularly limited.
- the glass transition temperature of the second block may be about -80 ° C or higher, -70 ° C or higher, -60 ° C or higher, -55 ° C or higher, or about -50 ° C or higher.
- the block copolymer including at least two types of blocks in which the glass transition temperature is in the above-mentioned range may form an appropriate fine phase separation structure in the pressure-sensitive adhesive.
- the block copolymer in which the phase separation structure is formed may provide an adhesive with proper cohesive force and stress relaxation property to the adhesive, thereby maintaining excellent adhesive properties such as durability, light leakage prevention properties, and reworkability.
- the first block may have, for example, a number average molecular weight (Mn) of about 2,500 to about 150,000.
- Mn number average molecular weight
- the number average molecular weight of the first block may mean, for example, the number average molecular weight of the polymer prepared by polymerizing only the monomer forming the first block.
- the number average molecular weight referred to in the present specification can be measured by, for example, the method shown in the Examples by using GPC (Gel Permeation Chromatograph).
- the number average molecular weight of the first block may be 5,000 or more, 7,000 or more, 9,000 or more, 10,000 or more, 11,000 or more, 12,000 or more, 13,000 or more, 14,000 or more, 15,000 or more, 16,000 or more, 17,000 or more, or 18,000 or more.
- the number average molecular weight of the first block may be 130,000 or less, 100,000 or less, 90,000 or less, 80,000 or less, 70,000 or less, 60,000 or less, 50,000 or less, 40,000 or less, 30,000 or less, or 25,000 or less.
- the block copolymer may have a number average molecular weight of about 50,000 to 300,000.
- the number average molecular weight of the block copolymer is in another example 90,000 to 250,000, 90,000 to 200,000, 90,000 to 180,000, 90,000 to 170,000, 90,000 to 160,000, 90,000 to 150,000, 90,000 to 140,000, 90,000 to 130,000, 90,000 to 120,000 or 90,000 to 115,000 May be enough.
- the block copolymer also has a molecular weight distribution (PDI; Mw / Mn), i.e., the ratio (Mw / Mn) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of about 1.0 to 2.5, 1.4 to 2.5 or about 1.45 to 2.0. Can be.
- PDI molecular weight distribution
- the block copolymer of the above characteristics can form an adhesive composition or pressure-sensitive adhesive of excellent physical properties.
- the block copolymer may be a crosslinkable copolymer having a crosslinkable functional group.
- a crosslinkable functional group a hydroxyl group, a carboxyl group, an isocyanate group, a glycidyl group, etc. can be illustrated, For example, a hydroxyl group can be used.
- the functional group When including a crosslinkable functional group, the functional group may be included in, for example, a second block having a low glass transition temperature.
- the first block having a high glass transition temperature may or may not include a crosslinkable functional group.
- a crosslinkable functional group when a crosslinkable functional group is not contained in a 1st block and a crosslinkable functional group is included only in a 2nd block, if a crosslinkable functional group is included in a 2nd block, appropriate cohesion force and stress relaxation property will change according to temperature change. It is possible to form a pressure-sensitive adhesive to maintain excellent physical properties required for optical films such as durability, light leakage prevention properties and reworkability.
- the block copolymer may also include polymerized units derived from compounds containing nitrogen atoms in the first block or the second block.
- the polymerized unit derived from the compound containing the nitrogen atom may be included in, for example, the first block or the second block, or may be included in both the first block and the second block.
- the ion association of the antistatic agent is suppressed and the antistatic agent
- the antistatic agent By improving the uniformity of the distribution of, for example, even when the pressure-sensitive adhesive or the like is maintained for a long time at high temperature or high humidity conditions, it is possible to suppress the change with time of the antistatic performance.
- the compound containing the nitrogen atom may be, for example, an amide group containing compound, an amino group containing compound, an imide group containing compound, or a cyano group containing compound.
- examples of the amide group-containing compound include (meth) acrylamide, N, N-dialkyl (meth) acrylamide, N-alkylol (meth) acrylamide, diacetone (meth) acrylamide, N- Vinylacetoamide, N, N-alkylenebisacrylamide, N-hydroxyalkyl (meth) acrylamide, N-hydroxy alkylaminoalkyl (meth) acrylamide, N- (2-aminoethyl) acrylamide hydrochloride , N- (3-aminopropyl) methacrylamide hydrochloride, N- (t-butoxycarbonyl-aminopropyl) methacrylamide, N, N-dialkylaminoalkyl (meth) acrylamide, N-vinylpy Ralidone, N-vinyl caprolactam, or (meth) acryloyl morpholine are mentioned, As an amino-group containing compound, aminoalkyl (meth) acrylate
- Compounds containing suitable nitrogen atoms that can be used in the present application include aminoalkyl (meth) acrylates, alkylaminoalkyl (meth) acrylates, dialkylaminoalkyl (meth) acrylates or hydroxyalkyl (meth) acrylics. Amides and the like can be exemplified, but are not limited thereto.
- alkyl in the present application may be a straight, branched or cyclic alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms, unless otherwise specified.
- the alkyl group may be optionally substituted with one or more substituents if necessary.
- polymerized units derived from a compound comprising a nitrogen atom may be included in a ratio of about 1% to 80% by weight, for example, based on the weight of monomers included as polymerized units in the entire block copolymer. Can be.
- the ratio may be at least 2% by weight, at least 3% by weight or at least 3.5% by weight in other examples.
- the ratio is 75% by weight, 70% by weight, 60% by weight, 65% by weight, 60% by weight, 55% by weight, 50% by weight, 45% by weight, 40% by weight in another example. Or up to 35 weight percent, up to 30 weight percent, up to 25 weight percent, up to 20 weight percent, or up to 15 weight percent.
- the type of monomers forming the first block and the second block is not particularly limited as long as the above glass transition temperature is secured by the combination of the monomers.
- the first block is a (meth) acrylic acid ester monomer; Or polymerized units derived from a compound comprising a (meth) acrylic acid ester monomer and a nitrogen atom.
- that the monomer is included in the polymer or the block as a polymerized unit may mean that the monomer forms a backbone, for example, a main chain or a side chain of the polymer or block through a polymerization reaction.
- an alkyl (meth) acrylate As a (meth) acrylic acid ester monomer, an alkyl (meth) acrylate can be used, for example. Considering cohesion, glass transition temperature, and adhesion control, an alkyl (meth) acrylate having an alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms may be used. Can be. In the above, the alkyl group may be, for example, linear, branched or cyclic.
- Examples of such monomers include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, t-butyl (meth ) Acrylate, sec-butyl (meth) acrylate, pentyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-ethylbutyl (meth) acrylate, n-octyl (meth) acrylate, iso Bornyl (meth) acrylate, isooctyl (meth) acrylate, isononyl (meth) acrylate, and lauryl (meth) acrylate, and the like, and the glass transition temperature of one or more of the above is ensured.
- the monomers forming the first block in consideration of the ease of glass transition temperature control, etc. are methacrylic acid ester monomers such as alkyl methacrylate, for example, 1 to 20 carbon atoms.
- alkyl methacrylates having an alkyl group having 1 to 16, 1 to 12 carbon atoms, 1 to 8 carbon atoms or 1 to 4 carbon atoms can be used.
- the first block may comprise an alkyl methacrylate, for example methyl methacrylate.
- the first block may be about 50% by weight, 60% by weight, 70% by weight, 80% by weight or more based on the weight of the total monomers including the methyl methacrylate as the polymerized unit in the first block. Or 90% by weight or more.
- an appropriate compound is selected from the compounds containing the above-described nitrogen atom in consideration of copolymerization properties, physical properties and the like with other monomers included in the first block. Can be used.
- the first block when the compound containing the nitrogen atom is included in the first block, the first block includes 70 parts by weight to 99.9 parts by weight of the (meth) acrylic acid ester monomer and 0.1 part by weight to 30 parts by weight of the compound including the nitrogen atom. And polymerized units derived from moieties.
- This ratio range may be advantageous for the provision of a pressure-sensitive adhesive that ensures proper uniformity such as cohesion and distribution uniformity of the antistatic agent.
- the unit weight part may mean a ratio of weights between components, unless otherwise specified.
- the second block comprises a polymerized unit derived from a (meth) acrylic acid ester monomer and a copolymerizable monomer having a crosslinkable functional group; Or polymerized units derived from a (meth) acrylic acid ester monomer, a copolymerizable monomer having a crosslinkable functional group and a compound comprising a nitrogen atom.
- the (meth) acrylic acid ester monomer forming the second block it is possible to secure the glass transition temperature in the above-described range through copolymerization with the copolymerizable monomer among the monomers that may be included in the first block.
- kinds of monomers can be selected and used.
- an acrylic acid ester monomer such as alkyl acrylate, for example, 1 to 20 carbon atoms and 1 to 1 carbon atoms
- Alkyl acrylates having an alkyl group having from 16 to 16 carbon atoms, from 1 to 8 carbon atoms or from 1 to 4 carbon atoms can be used.
- the pressure-sensitive adhesive can exhibit an appropriate cohesion force and stress relaxation property with temperature change, thereby forming an pressure-sensitive adhesive having excellent durability reliability, light leakage preventing property, workability and the like.
- a hydroxyl group or the like can be used as the crosslinkable functional group.
- Copolymerizable monomers having such crosslinkable functional groups are variously known in the field of pressure-sensitive adhesives, and all of these monomers may be used in the polymer.
- a copolymerizable monomer which has a hydroxyl group 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxy Hydroxyalkyl (meth) acrylates such as hexyl (meth) acrylate or 8-hydroxyoctyl (meth) acrylate, or 2-hydroxyethylene glycol (meth) acrylate or 2-hydroxypropylene glycol (meth) Hydroxyalkylene glycol (meth) acrylates such as acrylate may be used, but is not limited thereto.
- hydroxyalkyl acrylate or hydroxyalkylene glycol acrylate may be used, but is not limited thereto.
- an appropriate compound is selected from the compounds containing the above-described nitrogen atom in consideration of copolymerizability, physical properties and the like with other monomers included in the second block. Can be used.
- the second block when the compound including the nitrogen atom is not included in the second block but included only in the first block, the second block is 60 parts by weight to 99 parts by weight or 60 parts by weight to 99.8 by weight of the (meth) acrylic acid ester monomer. It may comprise a polymerized unit derived from 1 to 40 parts by weight or 0.1 to 10 parts by weight of the copolymerizable monomer having a weight part and a crosslinkable functional group.
- the second block is 60 parts by weight to 99.8 parts by weight of the (meth) acrylic acid ester monomer, from 0.1 part by weight to the copolymerizable monomer having a crosslinkable functional group Polymerized units derived from 0.1 to 30 parts by weight of a compound comprising 10 parts by weight and a nitrogen atom.
- a pressure-sensitive adhesive that ensures proper physical properties such as cohesion and distribution uniformity of the antistatic agent.
- the first block and / or the second block may further comprise other optional comonomers, if necessary, for example, for the control of the glass transition temperature, and the monomers may be included as polymerized units.
- the comonomer include (meth) acrylonitrile, (meth) acrylamide, N-methyl (meth) acrylamide, N-butoxy methyl (meth) acrylamide, N-vinyl pyrrolidone or N-vinyl capro Nitrogen atom-containing monomers such as lactam and the like; Alkoxy alkylene glycol (meth) acrylic acid ester, alkoxy dialkylene glycol (meth) acrylic acid ester, alkoxy trialkylene glycol (meth) acrylic acid ester, alkoxy tetraalkylene glycol (meth) acrylic acid ester, alkoxy polyethylene glycol (meth) acrylic acid Esters, phenoxy alkylene glycol (meth) acrylic acid esters, phenoxy dialkylene glycol (meth
- Such comonomers may be included in the polymer by selecting one or more kinds thereof as necessary. Such comonomers may be included, for example, in the block copolymer in a ratio of 20 parts by weight or less, or 0.1 to 15 parts by weight, relative to the total weight of other monomers used as polymerized units in each block.
- the block copolymer may include, for example, 5 parts by weight to 50 parts by weight of the first block and 50 parts by weight to 95 parts by weight of the second block. By adjusting the ratio of the weight between the first block and the second block as described above, it is possible to provide the pressure-sensitive adhesive composition and pressure-sensitive adhesive of excellent physical properties.
- the block copolymer may be, in another example, 5 parts by weight to 45 parts by weight of the first block and 55 parts by weight to 95 parts by weight of the second block or 5 parts by weight to 45 parts by weight of the first block and 60 parts by weight to 95 parts by weight of the second block. It may include parts by weight.
- the block copolymer may be a diblock copolymer including a first block and a second block, that is, a block copolymer including only two blocks of the first block and the second block.
- a diblock copolymer By using a diblock copolymer, the durability, stress relaxation property, and reworkability of an adhesive can be maintained more excellently.
- the method for producing the block copolymer is not particularly limited and can be prepared in a conventional manner.
- the block polymer may be polymerized by, for example, a Living Radical Polymerization (LRP) method, for example, an organic rare earth metal complex may be used as a polymerization initiator, or an organic alkali metal compound may be used as a polymerization initiator.
- LRP Living Radical Polymerization
- an inorganic acid salt such as a salt
- the pressure-sensitive adhesive composition may further include a crosslinking agent capable of crosslinking the block copolymer.
- a crosslinking agent it is a compound which has at least two functional groups which can react with a hydroxyl group or the above-mentioned crosslinkable functional group, and this kind of compound is known variously.
- an isocyanate crosslinking agent, an epoxy crosslinking agent, an aziridine crosslinking agent or a metal chelate crosslinking agent may be used as the crosslinking agent, for example, an isocyanate crosslinking agent may be used.
- isocyanate crosslinking agent For example, diisocyanate compounds, such as tolylene diisocyanate, xylene diisocyanate, diphenylmethane diisocyanate, hexamethylene diisocyanate, isoborone diisocyanate, tetramethyl xylene diisocyanate, or naphthalene diisocyanate, Alternatively, a compound obtained by reacting the diisocyanate compound with a polyol may be used. As the polyol, for example, trimethylol propane may be used.
- crosslinking agents may be used in the pressure-sensitive adhesive composition, but a crosslinking agent that may be used is not limited thereto.
- the multifunctional crosslinking agent may be included in the pressure-sensitive adhesive composition, for example, in an amount of 0.01 to 10 parts by weight or 0.01 to 5 parts by weight with respect to 100 parts by weight of the block copolymer, and in this range, the gel fraction, cohesion, adhesive strength and Durability etc. can be kept excellent.
- the pressure-sensitive adhesive composition may further include an antistatic agent.
- an antistatic agent for example, an ionic compound can be used.
- the ionic compound include organic salts and inorganic salts.
- a metal salt containing a metal ion as a cation can be used.
- Metal salts may include, for example, alkali metal cations or alkaline earth metal cations.
- As the cation lithium ion (Li + ), sodium ion (Na + ), potassium ion (K + ), rubidium ion (Rb + ), cesium ion (Cs + ), beryllium ion (Be2 + ), magnesium ion (Mg2 + ), Calcium ions (Ca 2+ ), strontium ions (Sr 2+ ), and barium ions (Ba 2+ ), and the like, or two or more kinds thereof may be exemplified.
- Lithium ions may be used in consideration of one or more kinds of magnesium ions, calcium ions, and barium ions, or in consideration of ion stability and mobility.
- an ionic compound containing an organic cation can be used.
- an onium cation can be exemplified.
- the term onium cation means an ion that is positively charged, including a structure in which at least a portion of the charge is localized in atoms such as nitrogen (N), phosphorus (P), and / or sulfur (S). can do.
- the onium cation may be a cyclic or acyclic compound, and in the cyclic case, may be an aromatic or non-aromatic compound.
- the onium cation may further include other atoms such as oxygen or carbon atoms in addition to the nitrogen, phosphorus and / or sulfur.
- the onium cation may be optionally substituted with a substituent such as halogen, alkyl group or aryl group.
- a substituent such as halogen, alkyl group or aryl group.
- the acyclic compound may include one or four or more substituents, and the substituents may be cyclic or acyclic substituents, aromatic or non-aromatic substituents.
- anion contained in the ionic compound such as inorganic salts or organic salts are PF 6 -, AsF -, NO2 -, fluoride (F -), chloride (Cl -), bromide (Br -), iodide (I -), perchlorate (ClO 4 -), hydroxide (OH -), carbonate (CO 3 2-), nitrate (NO 3 -), methanesulfonate trifluoroacetate carbonate (CF 3 SO 3 -), sulfonate (SO 4 -), phosphate (PF 6 -) hexafluoropropane, methyl benzene sulfonate (CH 3 (C 6 H 4 ) SO 3 -), p- toluenesulfonate (CH 3 C 6 H 4 SO 3 -) , Tetraborate (B 4 O 7 2- ), carboxybenzenesulfonate (COOH (C 6 H 4 ) SO,
- an anion or bisfluorosulfonylimide represented by the following Chemical Formula 1 may be used as the anion.
- X is a nitrogen atom or a carbon atom
- Y is a carbon atom or a sulfur atom
- R f is a perfluoroalkyl group
- m is 1 or 2
- n is 2 or 3.
- Anions or bis (fluorosulfonyl) imides of formula (1) exhibit high electronegativity due to perfluoroalkyl group (R f ) or fluorine group, and also contain unique resonance structures, forming weak bonds with cations At the same time, it has hydrophobicity. Therefore, while an ionic compound shows the outstanding compatibility with other components of compositions, such as a polymer, it can provide high antistatic property even with a small amount.
- R f in Formula 1 may be a perfluoroalkyl group having 1 to 20 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms or 1 to 4 carbon atoms, in which case the perfluoroalkyl group is linear, branched or cyclic. It may have a structure.
- the anion of formula (1) may be a sulfonyl metide, sulfonylimide, carbonyl metide or carbonyl imide anion, and specifically, tristrifluoromethanesulfonylmethide and bistrifluoromethanesulphate Ponylimide, bisperfluorobutanesulfonylimide, bispentafluoroethanesulfonylimide, tristrifluoromethanecarbonylmide, bisperfluorobutanecarbonylimide or bispentafluoroethanecarbonyl It may be a kind of imide or the like or a mixture of two or more thereof.
- the ratio of the antistatic agent may be adjusted in consideration of the desired antistatic property, and in one example, 0.1 parts by weight to 20 parts by weight, 0.1 parts by weight to 15 parts by weight, 0.1 parts by weight with respect to 100 parts by weight of the block copolymer. To about 10 parts by weight, 0.1 to 5 parts by weight, 0.1 to 3 parts by weight or 1 to 3 parts by weight may be included in the pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive composition may further include a silane coupling agent.
- a silane coupling agent the silane coupling agent which has a beta-cyano group or an acetoacetyl group can be used, for example.
- Such a silane coupling agent may, for example, allow the pressure-sensitive adhesive formed by a copolymer having a low molecular weight to exhibit excellent adhesion and adhesion stability, and also to maintain excellent durability and the like in heat and moisture resistant conditions. have.
- silane coupling agent which has a beta-cyano group or an acetoacetyl group
- the compound represented by following formula (2) or 3 can be used, for example.
- R 1 is a beta-cyanoacetyl group or a beta-cyanoacetylalkyl group
- R 3 is an acetoacetyl group or an acetoacetylalkyl group
- R 2 is an alkoxy group
- n is 1 to 3 It is a number.
- the alkyl group may be an alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms or 1 to 4 carbon atoms, and the alkyl group may be linear, branched or cyclic.
- the alkoxy group may be an alkoxy group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms or 1 to 4 carbon atoms, and the alkoxy group is linear, branched or cyclic. It may be a phase.
- n in Formula 2 or 3 may be, for example, 1 to 3, 1 to 2, or 1.
- acetoacetylpropyl trimethoxy silane for example, acetoacetylpropyl trimethoxy silane, acetoacetylpropyl triethoxy silane, beta-cyanoacetylpropyl trimethoxy silane or beta-cyanoacetylpropyl triethoxy silane Etc. may be illustrated, but is not limited thereto.
- the silane coupling agent may be included in an amount of 0.01 parts by weight to 5 parts by weight or 0.01 parts by weight to 1 parts by weight based on 100 parts by weight of the block copolymer, and may effectively impart desired properties to the pressure-sensitive adhesive within this range.
- An adhesive composition may further contain a tackifier as needed.
- a tackifier for example, a hydrocarbon resin or a hydrogenated substance thereof, a rosin resin or a hydrogenated substance thereof, a rosin ester resin or a hydrogenated substance thereof, a terpene resin or a hydrogenated substance thereof, a terpene phenol resin or a hydrogenated substance thereof, a polymerized rosin resin or One kind or a mixture of two or more kinds such as a polymerized rosin ester resin may be used, but is not limited thereto.
- the tackifier may be included in the pressure-sensitive adhesive composition in an amount of 100 parts by weight or less based on 100 parts by weight of the block copolymer.
- the pressure-sensitive adhesive composition is one selected from the group consisting of coordination binder compounds capable of forming coordination bonds with antistatic agents, epoxy resins, curing agents, ultraviolet stabilizers, antioxidants, colorants, reinforcing agents, fillers, antifoaming agents, surfactants, and plasticizers, if necessary.
- the above additive may be further included.
- the pressure-sensitive adhesive composition may have a coating solid content of 20 wt% or more or 25 wt% or more.
- coating solid content may refer to the pressure-sensitive adhesive composition, that is, the solid content of the coating liquid at the time of being applied to the coating process to form the pressure-sensitive adhesive.
- Such coating solids can be measured, for example, in the manner set forth in the Examples below.
- the pressure-sensitive adhesive composition that is, the coating liquid
- the pressure-sensitive adhesive composition may contain the block copolymer, the crosslinking agent, the initiator and other additives, and may also include the solvent and the like.
- the upper limit of the coating solids is not particularly limited and can be appropriately controlled in the range of, for example, 50 wt% or less, 40 wt% or less, or 30 wt% or less, in consideration of the viscosity to be applied to the coating process.
- the pressure-sensitive adhesive composition may also have a coating viscosity at 23 ° C. of about 500 cP to 3,000 cP.
- coating viscosity is a viscosity of the pressure-sensitive adhesive composition, that is, the coating liquid at the time when it is applied to the coating process to form the pressure-sensitive adhesive, it may mean the viscosity in a state in which the above-described coating solid content is maintained.
- the coating viscosity may be, for example, in the range of 500 cP to 2,500 cP, 700 cP to 2,500 cP, 900 cP to 2,300 cP at 23 ° C.
- the pressure-sensitive adhesive composition comprising the block copolymer may exhibit a level of viscosity at which the effective coating is possible even in a state where the coating solid content is set high.
- the pressure-sensitive adhesive composition may have a gel fraction of 80% by weight or less after implementing a crosslinked structure.
- the gel fraction can be calculated by the following general formula (1).
- A is the mass of the pressure-sensitive adhesive composition embodying a crosslinked structure
- B is 72 hours in ethyl acetate at room temperature in a state that the pressure-sensitive adhesive composition of mass A in a mesh of 200 mesh size
- the dry mass of the insoluble fraction collected after deposition is shown.
- the lower limit of the gel fraction of the pressure-sensitive adhesive composition is not particularly limited, and may be, for example, 0 wt%.
- the gel fraction of 0 wt% does not mean that the crosslinking did not proceed at all in the pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive composition having a gel fraction of 0% by weight the pressure-sensitive adhesive composition or crosslinking did not proceed at all, but the degree of crosslinking was low, so that the gel could not be maintained in the 200-mesh network. Leakage may also be included.
- the pressure-sensitive adhesive composition can be used for various applications. Typical applications include, but are not limited to, application to a protective film, an optical film, and the like described below.
- the present application also relates to a protective film.
- the protective film can be used, for example, in applications for protecting the surface of various optical films.
- a polarizing plate, a polarizer, a polarizer protective film, a retardation film, a viewing angle compensation film, or a brightness enhancing film may be exemplified, but is not limited thereto.
- the terms polarizer and polarizer refer to objects that are distinguished from each other. That is, the polarizer refers to the film, sheet or device itself exhibiting a polarizing function, and the polarizing plate means an optical element including other elements together with the polarizer.
- a polarizer protective film or a retardation layer may be exemplified, but is not limited thereto.
- a protective film may contain an adhesive layer, for example on one surface or both surfaces of a protective base material layer and this base material layer.
- the pressure-sensitive adhesive layer may include, for example, the pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive composition may be included in the pressure-sensitive adhesive layer, for example, in a crosslinked state, that is, a state in which a crosslinked structure is implemented.
- the protective base layer a general film or sheet known in the art may be used.
- polyester films such as polyethylene terephthalate or polybutylene terephthalate, polytetrafluoroethylene film, polyethylene film, polypropylene film, polybutene film, polybutadiene film, poly (vinyl chloride) film or polyimide film
- Plastic films such as Such a film may consist of a single layer, or two or more layers may be laminated, and in some cases, may further include a functional layer such as an antifouling layer.
- one or both surfaces of the substrate may be subjected to surface treatment such as primer treatment.
- the thickness of the base material layer is not particularly limited as appropriately selected depending on the use, and can be generally formed in a thickness of 5 ⁇ m to 500 ⁇ m or 10 ⁇ m to 100 ⁇ m.
- the thickness of the pressure-sensitive adhesive layer included in the protective film is not particularly limited, and may be, for example, 2 ⁇ m to 100 ⁇ m or 5 ⁇ m to 50 ⁇ m.
- the pressure-sensitive adhesive composition can be used for an optical film.
- a polarizing plate, a polarizer, a retardation film, an anti-glare film, a wide viewing angle compensation film or a brightness enhancement film, etc. are laminated on each other, or the optical film or a laminate thereof is attached to an adherend such as a liquid crystal panel. It may include the use for.
- the present application also relates to a pressure-sensitive adhesive optical laminate.
- Exemplary optical laminates include optical films; And it may include a pressure-sensitive adhesive layer formed on one side or both sides of the optical film.
- the pressure-sensitive adhesive layer may be, for example, for attaching the optical film to a liquid crystal panel or the like of an LCD device or another optical film, or for laminating another optical film on the laminate.
- the pressure-sensitive adhesive layer may include the pressure-sensitive adhesive composition.
- the pressure-sensitive adhesive composition may be included in the pressure-sensitive adhesive layer, for example, in a state in which a crosslinked structure is implemented.
- a polarizer, a retardation film, a brightness enhancement film, or the like, or a laminate in which two or more kinds thereof are laminated may be exemplified.
- the present application also relates to a pressure-sensitive adhesive polarizing plate.
- the polarizing plate may have, for example, a structure in which the optical film is a polarizer in the adhesive optical laminate.
- the kind of polarizer contained in a polarizing plate is not specifically limited,
- the polarizer is a functional film capable of extracting only light vibrating in one direction from incident light while vibrating in various directions.
- a polarizer may be, for example, a form in which a dichroic dye is adsorbed in a polyvinyl alcohol-based resin film.
- Polyvinyl alcohol-type resin which comprises a polarizer can be obtained by gelatinizing polyvinylacetate-type resin, for example.
- the polyvinylacetate resin which can be used may include not only a homopolymer of vinyl acetate but also a copolymer of vinyl acetate and other monomers copolymerizable with the above.
- Examples of the monomer copolymerizable with vinyl acetate include unsaturated carboxylic acids, olefins, vinyl ethers, unsaturated sulfonic acids, and a mixture of one or two or more kinds of acrylamides having an ammonium group, but are not limited thereto. no.
- the degree of gelation of the polyvinyl alcohol-based resin is usually 85 mol% to 100 mol%, preferably 98 mol% or more.
- the polyvinyl alcohol-based resin may be further modified, for example, polyvinyl formal or polyvinyl acetal modified with aldehydes may be used.
- the degree of polymerization of the polyvinyl alcohol-based resin may be about 1,000 to 10,000 or about 1,500 to 5,000.
- the polarizer is a step of stretching (ex. Uniaxial stretching) the polyvinyl alcohol resin film as described above, a step of dyeing the polyvinyl alcohol resin film with a dichroic dye, adsorbing the dichroic dye, and a dichroic dye adsorbed.
- the polyvinyl alcohol-based resin film can be produced through a process of treating with a boric acid aqueous solution and a process of washing with water after treating with a boric acid aqueous solution.
- the dichroic dye iodine or a dichroic organic dye may be used.
- the polarizing plate may further include a protective film attached to one side or both sides of the polarizer, in which case, the pressure-sensitive adhesive layer may be formed on one side of the protective film.
- the type of protective film is not particularly limited, and includes, for example, a cellulose film such as triacetyl cellulose (TAC); Polyester film such as polycarbonate film or PET (poly (ethylene terephthalet)); Polyether sulfone-based film; Alternatively, a film having a laminated structure of one layer or two or more layers, such as a polyethylene film, a polypropylene film or a polyolefin-based film produced using a resin having a cyclo or norbornene structure, an ethylene-propylene copolymer, or the like can be used.
- the polarizer may also further include one or more functional layers selected from the group consisting of protective layers, reflective layers, antiglare layers, retardation plates, wide viewing angle compensation films, and brightness enhancement films.
- a method of forming the pressure-sensitive adhesive layer on the protective film, the polarizing plate or the optical film is not particularly limited. After coating and curing the pressure-sensitive adhesive composition on the release treatment surface of the to form a crosslinked structure and the like can be used to transfer.
- the method of coating the pressure-sensitive adhesive composition is not particularly limited, and for example, a method of applying the pressure-sensitive adhesive composition by conventional means such as a bar coater may be used.
- the multifunctional crosslinking agent included in the pressure-sensitive adhesive composition is preferably controlled from the crosslinking reaction of the functional group from the viewpoint of performing a uniform coating process, whereby the crosslinking agent crosslinks in the curing and aging process after the coating operation.
- the cohesive force of the pressure-sensitive adhesive may be improved, and adhesive properties and cuttability may be improved.
- the coating process is also preferably carried out after sufficiently removing the bubble-inducing components such as volatile components or reaction residues in the pressure-sensitive adhesive composition, so that the crosslinking density or molecular weight of the pressure-sensitive adhesive is too low to lower the elastic modulus, at a high temperature Bubbles existing between the glass plate and the adhesive layer may be increased to prevent a problem of forming scatterers therein.
- the method of curing the pressure-sensitive adhesive composition to implement a crosslinking structure is not particularly limited, and for example, a method of maintaining the coating layer at an appropriate temperature so as to cause a crosslinking reaction between the block copolymer included in the coating layer and the multifunctional crosslinking agent. Or the like.
- the present application also relates to a display device, for example an LCD device.
- a display device for example an LCD device.
- Exemplary above-mentioned optical laminates or polarizing plates may be included.
- the display device is an LCD
- the device may include a liquid crystal panel and the polarizing plate or optical laminate attached to one or both surfaces of the liquid crystal panel.
- the polarizing plate or the optical laminate may be attached to the liquid crystal panel by the pressure-sensitive adhesive described above.
- liquid crystal panels applied to LCDs include passive matrix panels such as twisted nematic (TN) type, super twisted nematic (STN) type, ferroelectic (F) type, or polymer dispersed (PD) type; Active matrix panels, such as two-terminal or three-terminal; All known panels, such as an In Plane Switching (IPS) panel and a Vertical Alignment (VA) panel, can be applied.
- passive matrix panels such as twisted nematic (TN) type, super twisted nematic (STN) type, ferroelectic (F) type, or polymer dispersed (PD) type
- Active matrix panels such as two-terminal or three-terminal
- All known panels such as an In Plane Switching (IPS) panel and a Vertical Alignment (VA) panel, can be applied.
- IPS In Plane Switching
- VA Vertical Alignment
- types of upper and lower substrates such as color filter substrates or array substrates in LCDs are not particularly limited, and configurations known in the art can be employed without limitation.
- the pressure-sensitive adhesive composition capable of forming an adhesive having excellent general properties such as durability and excellent antistatic properties and less change of antistatic properties over time after durability conditions may be provided.
- the pressure-sensitive adhesive composition can be used, for example, for optical films such as protective films, polarizing plates, and the like.
- Mn number average molecular weight
- PDI molecular weight distribution
- Aglient GPC Aglient 1200 series, U.S.
- the specimens were prepared by cutting the polarizing plates prepared in Examples or Comparative Examples to have a length of 5 cm and a length of 5 cm.
- TAC triacetyl cellulose
- PVA polyvinyl alcohol polarizing film
- PSA adhesive layer
- PET release film
- Initial surface resistance of the layer was measured. After that, the specimen was measured at 80 ° C. for 7 days, and then the appearance was evaluated. In addition, after leaving the specimen for which the initial surface resistance was measured for 7 days at 60 ° C. and 90% relative humidity conditions, the surface resistance (surface resistance after durability reliability evaluation) was measured in the same manner as described above. The surface resistance was measured using a measuring instrument (Hiresta-UP (MCP-HT 450, Mitsubishi chemical
- Measuring instrument Hiresta-UP (MCP-HT 450, Mitsubishi chemical)
- the polarizing plate prepared in Example or Comparative Example was cut to have a width of about 180 mm and a length of about 320 mm, to prepare a specimen, and attach it to a 19 inch commercial panel.
- the panel is then stored in an autoclave (50 ° C., 5 atmospheres) for about 20 minutes to prepare a sample.
- Heat resistance of the prepared sample was evaluated based on the following criteria by observing the occurrence of bubbles and peeling after maintaining the sample at 80 ° C. for 500 hours, and (2) Moisture heat durability of the sample at 60 ° C. and 90%. After leaving for 500 hours at relative humidity conditions, the occurrence of bubbles and peeling at the adhesive interface was observed and evaluated according to the following criteria.
- Glass transition temperature (Tg) of each block of a block copolymer was computed according to the following formula.
- Wn is a weight fraction of the monomer used in each block and the like, and Tn represents a glass transition temperature that appears when the monomer used forms a homopolymer.
- the right side of the above formula is the sum of the calculated values after calculating all the monomers (Wn / Tn) divided by the glass transition temperature when the monomer forms the homopolymer (Wn / Tn). to be.
- ethyl 2-bromoisobutyrate (EBiB) and 44.3 g of methyl methacrylate (MMA) were mixed with 17 g of ethyl acetate (EAc). Then, 0.008 g of CuBr 2 , 0.002 g of tris (2-pyridylmethyl) amine) and 0.06 g of V-65 (2,2'-azobis (2,4-dimethyl valeronitrile)) were further added to the mixture. , Mix these. The flask containing the mixture was sealed, stirred at about 25 ° C. for about 30 minutes under nitrogen atmosphere, and dissolved oxygen was removed by bubbling.
- MMA methyl methacrylate
- the mixture was deoxygenated and immersed in a reactor at about 67 ° C. to initiate the reaction (polymerization of the first block).
- the conversion rate of methyl methacrylate is about 75%, it is bubbled with nitrogen in advance and 30.8 g of 2-dimethylamino ethyl acrylate (DMAEA), 123 g of butyl acrylate (BA), and 3.8 g of hydroxybutyl acrylate (HBA) And 202 g of ethyl acetate (EAc) were added under nitrogen.
- DAEA 2-dimethylamino ethyl acrylate
- BA butyl acrylate
- HBA hydroxybutyl acrylate
- EAc ethyl acetate
- Block copolymers were prepared by exposing the reaction mixture to oxygen and terminating the reaction by dilution in an appropriate solvent when the conversion of monomers (BA) reached 80% or more (in the process V-65 takes into account its half-life). Appropriately divided to the end of the reaction.)
- Each block copolymer was prepared by adjusting the type of raw material (monomer) used in the polymerization of the block copolymer to have a composition as shown in Table 1 below.
- a crosslinking agent (Coronate L, manufactured by Japan NPU), 0.1 part by weight of DBTDL (Dibutyltin dilaurate), and an inorganic salt as an antistatic agent (LiTFSi (Lithium trifluorosulfonylimide) based on 100 parts by weight of the block copolymer (A1) prepared in Preparation Example 1 ) And 0.2 parts by weight of a silane coupling agent (M812, LG Chem) having a beta cyanoacetyl group, and ethyl acetate as a solvent was mixed to adjust the coating solid content to about 30% by weight to prepare a coating solution (adhesive composition).
- a silane coupling agent M812, LG Chem
- An adhesive composition (coating solution) and an adhesive polarizing plate were prepared in the same manner as in Example 1 except that the copolymer (A2) prepared in Preparation Example 2 was used as a block copolymer when preparing the pressure-sensitive adhesive composition (coating solution).
- An adhesive composition (coating solution) and an adhesive polarizing plate were prepared in the same manner as in Example 1 except that the copolymer (A3) prepared in Preparation Example 3 was used as a block copolymer when preparing the pressure-sensitive adhesive composition (coating solution).
- An adhesive composition (coating solution) and an adhesive polarizing plate were prepared in the same manner as in Example 1 except that the copolymer (B1) prepared in Preparation Example 4 was used as a block copolymer when preparing the pressure-sensitive adhesive composition (coating solution).
- An adhesive composition (coating solution) and an adhesive polarizing plate were manufactured in the same manner as in Example 1 except that the block copolymer (B2) of Preparation Example 5 was used instead of the block copolymer of Preparation Example 1 in preparing the pressure-sensitive adhesive composition (coating solution). It was.
- An adhesive composition (coating solution) and an adhesive polarizing plate were manufactured in the same manner as in Example 1, except that the random copolymer (B3) of Preparation Example 6 was used instead of the block copolymer of Preparation Example 1 in preparing the pressure-sensitive adhesive composition (coating solution). It was.
Abstract
Description
블록 공중합체 | ||||||
A1 | A2 | A3 | B1 | B2 | ||
제1블록 | MMA비율 | 26 | 26 | 26 | 26 | 21.1 |
BMA비율 | - | - | - | - | 4.2 | |
HPMA비율 | - | - | - | - | 0.8 | |
Tg(℃) | 110 | 110 | 110 | 110 | 90 | |
Mn(×10000) | 1.9 | 1.9 | 1.9 | 1.9 | 2.3 | |
PDI | 1.27 | 1.27 | 1.27 | 1.27 | 1.36 | |
제2블록 | BA비율 | 58 | 68 | 68 | 72 | 58 |
HBA비율 | 2 | 2 | 2 | 2 | 2 | |
DMAEA비율 | 14 | 4 | - | - | 14 | |
HEAA비율 | - | - | 4 | - | - | |
Tg(℃) | -41 | -45 | -42 | -46 | -41 | |
블록공중합체 | Mn(×10000) | 10.6 | 10.1 | 10.2 | 10.8 | 12.2 |
PDI | 1.7 | 1.6 | 1.7 | 1.5 | 1.8 | |
비율 단위: 중량부Tg: 유리전이온도Mn: 수평균분자량PDI: 분자량 분포BA: butyl acrylateHBA: 4-hydroxybutyl acrylateMMA: methyl methacrylateBMA: butyl methacrylateHPMA: 3-hydroxypropyl methacrylateDMAEA: dimethylaminoethyl acryalteHEAA: hydroxyethyl acrylamide |
실시예 | 비교예 | |||||||
1 | 2 | 3 | 4 | 1 | 2 | 3 | ||
표면저항(×1010Ω/□) | 내구신뢰평가전 | 2.2 | 3.1 | 2.7 | 2.8 | 2.4 | 2.3 | 590 |
내구신뢰평가후 | 2.5 | 3.7 | 3.9 | 3.1 | 78 | 2.7 | 3700 | |
표면저항변화 | 소 | 소 | 소 | 소 | 대 | 소 | 대 | |
내구신뢰성(내열) | A | A | A | A | A | C | B | |
내구신뢰성(내습열) | A | A | A | A | A | C | C |
Claims (20)
- 유리전이온도가 50℃ 이상인 제 1 블록과 유리전이온도가 -10℃ 이하이며, 가교성 관능기를 포함하는 제 2 블록을 가지고, 상기 제 1 또는 제 2 블록은 질소 원자를 포함하는 화합물로부터 유래되는 중합 단위를 포함하는 블록 공중합체; 및 대전 방지제를 포함하는 점착제 조성물.
- 제 1 항에 있어서, 가교성 관능기는 제 1 블록에는 존재하지 않고, 제 2 블록에만 포함되어 있는 점착제 조성물.
- 제 1 항에 있어서, 질소 원자를 포함하는 화합물은, 아마이드기 함유 화합물, 아미노기 함유 화합물, 이미드기 함유 화합물 또는 사이아노기 함유 화합물인 점착제 조성물.
- 제 3 항에 있어서, 아마이드기 함유 화합물은, (메타)아크릴아마이드, N,N-다이알킬 (메타)아크릴아마이드, N-알킬롤 (메타)아크릴아마이드, 다이아세톤 (메타)아크릴아마이드, N-바이닐아세토아마이드, N,N-알킬렌비스아크릴아마이드, N-하이드록시알킬 (메타)아크릴아마이드, N-하이드록시 알킬아미노알킬 (메타)아크릴아마이드, N-(2-아미노에틸)아크릴 아마이드 하이드로클로라이드, N-(3-아미노프로필)메타크릴아마이드 하이드로클로라이드, N-(t-부톡시카르보닐-아미노프로필)메타크랄아마이드, N,N-다이알킬아미노알킬 (메타)아크릴아마이드, N-바이닐피롤리돈, N-바이닐카프로락탐 또는 (메트)아크릴로일모폴린이고, 아미노기 함유 화합물은, 아미노알킬 (메타)아크릴레이트, N-알킬아미노알킬 (메타)아크릴레이트 또는 N,N-다이알킬아미노알킬 (메타)아크릴레이트이며, 이미드기 함유 화합물은 N-알킬 말레이미드 또는 이타콘이미드이고, 사이아노기 함유 화합물은 (메타)아크릴로니트릴인 점착제 조성물.
- 제 1 항에 있어서, 질소 원자를 포함하는 화합물은, 아미노알킬 (메타)아크릴레이트, 알킬아미노알킬 (메타)아크릴레이트, 디알킬아미노알킬 (메타)아크릴레이트 또는 히드록시알킬 (메타)아크릴아미드인 점착제 조성물.
- 제 1 항에 있어서, 블록 공중합체는 제 1 블록 5 중량부 내지 50 중량부 및 제 2 블록 50 중량부 내지 95 중량부를 포함하는 점착제 조성물.
- 제 1 항에 있어서, 제 1 블록은 알킬 메타크릴레이트로부터 유래된 중합 단위를 포함하는 점착제 조성물.
- 제 1 항에 있어서, 제 1 블록은 메틸 메타크릴레이트로부터 유래된 중합 단위를 50 중량% 이상 포함하는 점착제 조성물.
- 제 1 항에 있어서, 제 1 블록은 알킬 메타크릴레이트 70 중량부 내지 99.9 중량부 및 질소 원자를 포함하는 화합물 0.1 중량부 내지 30 중량부로부터 유도된 중합 단위를 포함하는 점착제 조성물.
- 제 1 항에 있어서, 제 2 블록은 알킬 아크릴레이트 60 중량부 내지 99.8 중량부 및 가교성 관능기를 가지는 공중합성 단량체 0.1 중량부 내지 10 중량부로부터 유래된 중합 단위를 포함하는 점착제 조성물.
- 제 1 항에 있어서, 제 2 블록은 알킬 아크릴레이트 60 중량부 내지 99.8 중량부, 가교성 관능기를 가지는 공중합성 단량체 0.1 중량부 내지 10 중량부 및 질소 원자를 포함하는 화합물 0.1 중량부 내지 30 중량부로부터 유래된 중합 단위를 포함하는 점착제 조성물.
- 제 1 항에 있어서, 블록 공중합체는, 제 1 블록 및 제 2 블록을 가지는 디블록 공중합체인 점착제 조성물.
- 제 1 항에 있어서, 가교성 관능기와 반응할 수 있는 관능기를 2개 이상 가지는 다관능성 가교제를 추가로 포함하는 점착제 조성물.
- 제 13 항에 있어서, 가교제는 블록 공중합체 100 중량부 대비 0.01 중량부 내지 10 중량부로 포함되는 점착제 조성물.
- 제 1 항에 있어서, 대전 방지제는 유기염 또는 금속염인 점착제 조성물.
- 제 1 항에 있어서, 대전 방지제는 블록 공중합체 100 중량부 대비 0.1 중량부 내지 20 중량부로 포함되는 점착제 조성물.
- 보호 기재층; 및 상기 보호 기재층의 일면 또는 양면에 존재하고, 제 1 항의 점착제 조성물을 포함하는 점착제층을 가지는 보호 필름.
- 광학 필름; 및 상기 광학 필름의 일면 또는 양면에 존재하며, 제 1 항의 점착제 조성물을 포함하는 점착제층을 가지는 점착형 광학 적층체.
- 편광자; 및 상기 편광자의 일면 또는 양면에 존재하며, 제 1 항의 점착제 조성물을 포함하는 점착제층을 가지는 점착형 편광판.
- 제 18 항의 광학 적층체 또는 제 19 항의 편광판을 포함하는 디스플레이 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480049669.8A CN105518095B (zh) | 2013-11-29 | 2014-12-01 | 压敏粘合剂组合物 |
EP14866262.0A EP3075807B1 (en) | 2013-11-29 | 2014-12-01 | Adhesive composition |
JP2016533266A JP6256730B2 (ja) | 2013-11-29 | 2014-12-01 | 粘着剤組成物 |
US14/912,016 US9834709B2 (en) | 2013-11-29 | 2014-12-01 | Pressure sensitive adhesive composition |
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KR1020140169638A KR101655918B1 (ko) | 2013-11-29 | 2014-12-01 | 점착제 조성물 |
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Cited By (2)
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JP2018141990A (ja) * | 2018-04-03 | 2018-09-13 | 日東電工株式会社 | タッチセンシング機能付液晶パネルおよび液晶表示装置 |
US11643576B2 (en) * | 2017-02-14 | 2023-05-09 | Toagosei Co. Ltd. | Pressure-sensitive adhesive composition and producing method thereof |
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