WO2016043520A1 - Adhesive composition for touch screen panel, optical adhesive film and touch screen panel - Google Patents

Adhesive composition for touch screen panel, optical adhesive film and touch screen panel Download PDF

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Publication number
WO2016043520A1
WO2016043520A1 PCT/KR2015/009722 KR2015009722W WO2016043520A1 WO 2016043520 A1 WO2016043520 A1 WO 2016043520A1 KR 2015009722 W KR2015009722 W KR 2015009722W WO 2016043520 A1 WO2016043520 A1 WO 2016043520A1
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WIPO (PCT)
Prior art keywords
meth
acrylate
adhesive composition
sensitive adhesive
pressure
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Application number
PCT/KR2015/009722
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French (fr)
Korean (ko)
Inventor
김원호
이슬
윤찬오
김장순
박은경
정부기
김민정
김상환
Original Assignee
(주)엘지하우시스
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Priority claimed from KR1020140135554A external-priority patent/KR101900529B1/en
Application filed by (주)엘지하우시스 filed Critical (주)엘지하우시스
Priority to CN201580049444.7A priority Critical patent/CN106795397B/en
Priority to US15/510,855 priority patent/US10259977B2/en
Priority to JP2017513530A priority patent/JP6490802B2/en
Publication of WO2016043520A1 publication Critical patent/WO2016043520A1/en

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    • 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
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • 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
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • 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

Definitions

  • It relates to an adhesive composition for a touch screen panel, an optical adhesive film, and a touch screen panel.
  • a transparent conductive plastic film is used for light weight and prevention of cracking.
  • a film based on a polyethylene terephthalate (PET) film and a conductive layer such as indium tin oxide (ITO) formed on one surface thereof, and the film is conductive by an adhesive layer. It is laminated
  • PET polyethylene terephthalate
  • ITO indium tin oxide
  • the pressure-sensitive adhesive layer is required for various physical properties such as touch sensitivity and durability.
  • One embodiment of the present invention provides an adhesive composition having excellent sensitivity to touch and excellent reliability.
  • Another embodiment of the present invention provides an optical adhesive film prepared from the pressure-sensitive adhesive composition.
  • Another embodiment of the present invention provides a touch screen panel to which the optical pressure-sensitive adhesive film prepared from the pressure-sensitive adhesive composition for touch screen panels is applied.
  • (meth) acrylic acid ester-based photocurable resin In one embodiment of the present invention, (meth) acrylic acid ester-based photocurable resin; And an oxygen-free bifunctional diene rubber curing agent.
  • the oxygen-free bifunctional diene rubber curing agent may include a diene difunctional group at both ends.
  • the oxygen-free bifunctional diene rubber curing agent is, for example, a bifunctional polybutadiene, a bifunctional isoprene rubber, a bifunctional isobutylene-isoprene rubber, a bifunctional styrene-butyrene rubber, or the like, or a combination thereof. It may include one selected from the group.
  • the weight average molecular weight of the oxygen-free bifunctional diene rubber curing agent may be 3,000 to 20,000.
  • the oxygen-free bifunctional diene rubber curing agent may have a dielectric constant k value of 2.1 to 2.5 measured at a frequency of 100 kHz.
  • the (meth) acrylic acid ester-based photocurable resin is a (meth) acrylic acid ester monomer; And a crosslinkable monomer including at least one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof.
  • the (meth) acrylic acid ester monomer may be alkyl (meth) acrylate, and the alkyl of the alkyl (meth) acrylate may be linear or branched C1-C14 alkyl.
  • the (meth) acrylic acid ester monomer is 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) acrylic And isooctyl (meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and combinations thereof.
  • the crosslinkable monomer is 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 8 -Hydroxyoctyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate, 2-hydroxypropylene glycol (meth) acrylate, acrylic acid, methacrylic acid, 2- (meth) acryloyloxy acetic acid , 3- (meth) acryloyloxy propyl acid, 4- (meth) acryloyloxy butyl acid, acrylic acid duplex, itaconic acid, maleic acid, 2-isocyanatoethyl (meth) acrylate, 3- From isocyanatopropyl (meth) acrylate, 4-isocyanatobutyl (meth) acrylate, (meth) acrylamide, N-vinyl pyrrolidon
  • the pressure-sensitive adhesive composition may further include a photoinitiator.
  • the photoinitiator may include one selected from the group consisting of a benzoin initiator, a hydroxy ketone initiator, an amino ketone initiator caprolactam, and a combination thereof.
  • an optical pressure-sensitive adhesive film comprising a pressure-sensitive adhesive layer containing a photocurable of the pressure-sensitive adhesive composition.
  • a conductive plastic film layer having a conductive layer formed on one surface;
  • the conductive plastic film layer may be a polyethylene terephthalate film having a conductive metal oxide layer formed on one surface thereof.
  • the cover window may be a transparent glass replacement plastic film or tempered glass.
  • the optical pressure-sensitive adhesive film prepared from the pressure-sensitive adhesive composition has very good sensitivity to touch and excellent reliability.
  • FIG. 1 is a schematic cross-sectional view of a touch screen panel according to an embodiment of the present invention.
  • An optical adhesive film used as a bonding medium for bonding a conductive plastic film layer having a conductive layer formed on one surface and a cover window layer when manufacturing a touch screen panel of a display device such as a mobile or a tablet PC may be manufactured from the adhesive composition. .
  • An optical adhesive film may be formed by photocuring the (meth) acrylic acid ester-based photocurable resin of the pressure-sensitive adhesive composition, and the optical adhesive film may be optically transparent to be applied to a touch screen panel. , Has a low dielectric constant. As such, the optical adhesive film having a low dielectric constant is useful for applying to a touch screen panel due to increased sensitivity to touch.
  • Oxygen-free bifunctional diene rubber curing agent of the pressure-sensitive adhesive composition as a material having a low dielectric constant contributes to the optical pressure-sensitive adhesive film to implement a low dielectric constant.
  • the oxygen-free bifunctional diene-based rubber curing agent has a low dielectric constant and is bifunctional, and thus may act as a crosslinking agent between the (meth) acrylic acid ester-based photocurable resins when cured.
  • the oxygen-containing bifunctional diene rubber curing agent may include a diene difunctional group at both ends.
  • the oxygen-free bifunctional diene-based rubber curing agent does not contain oxygen having a high electronegativity, it is nonpolar, and thus low dielectric constant can be realized.
  • the oxygen-free bifunctional diene-based rubber curing agent may have a crosslinking role because it has a bifunction as described above, but it should not be multifunctional more than trifunctional. That is, the oxygen-free bifunctional diene rubber curing agent is bifunctional, and is combined with the (meth) acrylic acid ester photocurable resin to be suitable for adhesive film production. This is because the (meth) acrylic acid ester-based photocurable resin has a certain degree of hardness after curing. If a trifunctional or higher polyfunctional compound is used as the curing agent, the crosslinking site is increased, and the adhesive film produced therefrom becomes excessive. Since it becomes hard, it will become unsuitable as an adhesive film.
  • the oxygen-free bifunctional diene rubber curing agent may not include other functional groups other than the diene-based functional groups at both ends.
  • the weight average molecular weight of the oxygen-free bifunctional diene rubber curing agent may be about 3,000 to about 20,000. That is, the diene rubber compound of the weight average molecular weight level of the oxygen-free bifunctional diene rubber curing agent, may be in the form of a resin or oligomer.
  • the oxygen-free bifunctional diene rubber curing agent having a weight average molecular weight in the above range can function properly as a curing agent.
  • the oxygen-free bifunctional diene-based rubber curing agent may have a dielectric constant k value measured at a frequency of 100 kHz of about 2.1 to about 2.5.
  • the oxygen-free bifunctional diene rubber curing agent may include a bifunctional polybutadiene, a bifunctional isoprene rubber, a bifunctional isobutylene-isoprene rubber, a bifunctional styrene-butyrene rubber, or the like, or a combination thereof.
  • the pressure-sensitive adhesive composition for the touch screen panel may be manufactured to have a low dielectric constant including the oxygen-free bifunctional diene-based rubber curing agent.
  • the dielectric constant k value measured at a frequency of 100 kHz is 3.0 or less.
  • the optical adhesive film prepared from the pressure-sensitive adhesive composition for touch screen panels having a low dielectric constant is excellent in touch sensitivity.
  • the pressure-sensitive adhesive composition is about 100 parts by weight of the (meth) acrylic acid ester photocurable resin; And about 0.1 to about 2 parts by weight of the oxygen-free bifunctional diene rubber curing agent.
  • the (meth) acrylic acid ester-based photocurable resin is a (meth) acrylic acid ester monomer; And a crosslinkable monomer including at least one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof.
  • the (meth) acrylic acid ester monomer may be alkyl (meth) acrylate, and the alkyl of the alkyl (meth) acrylate may be linear or branched C1-C14 alkyl.
  • the (meth) acrylic acid ester monomer is 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) acrylic Latex, isooctyl (meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and the like, or combinations thereof.
  • the crosslinkable monomer means a monomer having a copolymerizable functional group (eg, carbon-carbon double bond) and a crosslinkable functional group at the same time in its molecular structure.
  • the crosslinkable monomer may include, for example, one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof, but is not limited thereto.
  • the crosslinkable monomer is 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) Hydroxy group-containing monomers such as acrylate, 8-hydroxyoctyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate, 2-hydroxypropylene glycol (meth) acrylate, and the like; Acrylic acid, methacrylic acid, 2- (meth) acryloyloxy acetic acid, 3- (meth) acryloyloxy propyl acid, 4- (meth) acryloyloxy butyl acid, acrylic acid duplex, itaconic acid, maleic acid Carboxyl group-containing monomers such as the like; 2-isocyanatoethyl (meth) acrylate, 3-isocyanatopropyl (meth) acrylate, 4-isocyanatobutyl (meth)
  • the pressure-sensitive adhesive composition may further include a photoinitiator to control the degree of polymerization as a photocurable composition.
  • the photoinitiator may be used in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the (meth) acrylic acid ester-based photocurable resin, and the type of the photoinitiator may generate radicals by light irradiation to initiate a polymerization reaction. It is not particularly limited, and may include, for example, one selected from the group consisting of a benzoin initiator, a hydroxy ketone initiator, an amino ketone initiator caprolactam, and a combination thereof.
  • the pressure-sensitive adhesive composition is one selected from the group consisting of an epoxy resin, a crosslinking agent, an ultraviolet stabilizer, an antioxidant, a colorant, a reinforcing agent, a filler, an antifoaming agent, a surfactant, a plasticizer, and a combination thereof in a range that does not affect the effect of the invention. It may further include the above additives.
  • an optical adhesive film comprising a photocurable of the pressure-sensitive adhesive composition.
  • Light irradiation refers to the irradiation of electromagnetic waves that can affect the photoinitiator or polymerizable compound to cause a polymerization reaction, wherein the electromagnetic waves are microwaves, infrared rays, ultraviolet rays, X-rays and ⁇ -rays, as well as ⁇ -particle beams, Particle beams such as a proton beam, a neutron beam, and an electron beam are used generically.
  • the method for producing the optical pressure-sensitive adhesive film by photocuring the pressure-sensitive adhesive composition is not particularly limited.
  • the optical pressure-sensitive adhesive film can be produced by applying the above-described pressure-sensitive adhesive composition or a coating solution prepared by adding a solvent thereto to a suitable process substrate by a known means such as a bar coater, and curing.
  • the curing process is carried out after sufficiently removing the bubble-inducing components such as volatile components or reaction residues contained in the pressure-sensitive adhesive composition or the coating solution, to appropriately give the crosslinking density or molecular weight, elastic modulus, etc. of the cured product,
  • the bubbles present in the adhesive interface may be increased to prevent a problem of forming scatterers therein.
  • the method of hardening the said adhesive composition or its coating liquid is not specifically limited, For example, it hardens
  • the photocuring can be carried out, for example, by UV irradiation.
  • UV irradiation performed for the photocuring may be performed for about 10 seconds to about 15 seconds with a metal halide lamp that is commonly used.
  • the amount of light irradiated with UV is preferably about 0.5 J / cm 2 to about 2.0 J / cm 2 , and more preferably about 1.0 J / cm 2 to about 1.5 J / cm 2 .
  • the optical adhesive film may have a thickness of about 50 ⁇ m to about 300 ⁇ m, specifically about 100 ⁇ m to about 200 ⁇ m. By making the optical adhesive film have a thickness in the above range, while being applicable to a thin touch panel or a touch screen, it is possible to implement an adhesive film having excellent durability.
  • a conductive plastic film layer having a conductive layer formed on one surface; The optical adhesive film laminated on the conductive layer; And it provides a touch screen panel comprising a cover window layer laminated on the optical adhesive film.
  • the cover window layer may use a transparent glass replacement plastic film developed as a material capable of replacing tempered glass or tempered glass.
  • the glass replacement plastic film may be formed by imparting various functionalities to each layer in a multilayer structure.
  • FIG. 1 is a schematic cross-sectional view of the touch screen panel 100.
  • the touch screen panel 100 may include a cover window layer 150; Optical adhesive film 110; A conductive plastic film layer 130 having a conductive layer 132 formed on one surface of the plastic substrate layer 131; And a transparent substrate 160.
  • the touch screen panel 100 including each layer as described above may be attached to a display device such as a liquid crystal display (LCD) 170.
  • LCD liquid crystal display
  • the optical pressure-sensitive adhesive film 110 is a layer formed by photocuring the pressure-sensitive adhesive composition, the detailed description of the optical pressure-sensitive adhesive film 110 is as described above.
  • the specific kind of the conductive plastic film layer 130 is not particularly limited, and a conductive film known in the art may be used.
  • the conductive film 130 may be a transparent plastic film having an ITO electrode layer formed as a conductive layer 132 on one surface thereof.
  • the transparent plastic film forming the plastic base layer 131 polyethylene terephthalate film, polytetrafluoroethylene film, polyethylene film, polypropylene film, polybutene film, polybutadiene film, vinyl chloride air Copolymer film, polyurethane film, ethylene-vinyl acetate film, ethylene-propylene copolymer film, ethylene-ethyl acrylate copolymer film, ethylene-methyl acrylate copolymer film or polyimide film and the like can be used, but are not limited thereto. More specifically, the plastic base layer 131 may be a polyethylene terephthalate (PET) film.
  • PET polyethylene terephthalate
  • a bifunctional butadiene rubber curing agent based on 100 parts by weight of the obtained photocurable acrylic copolymer resin (based on solids)
  • a, a-methoxy-a-hydroxyacetophenone (Igacure 651, Ciba) as a photoinitiator 0.35 parts by weight of 1,6-hexanedioldiacrylate (HDDA) as a crosslinking agent was mixed and then sufficiently stirred to prepare an adhesive composition.
  • the pressure-sensitive adhesive composition was formed into a film with a thickness of 100 ⁇ m and photocured to prepare an optical pressure-sensitive adhesive film as a cured film.
  • Photocurable acrylic copolymer resin syrup was prepared in the same manner as in Example 1, except that 2.0 parts by weight of a bifunctional butadiene rubber curing agent was used relative to 100 parts by weight of the obtained photocurable acrylic copolymer resin, and the optical method was the same as in Example 1. An adhesive film for was prepared.
  • a photocurable acrylic copolymer resin syrup was prepared in the same manner as in Example 1, except that 0.5 parts by weight of a bifunctional urethane curing agent was used instead of a bifunctional butadiene rubber curing agent based on 100 parts by weight of the obtained photocurable acrylic copolymer resin. In the same manner as in the optical adhesive film was prepared.
  • Photocurable acrylic copolymer resin syrup was prepared in the same manner as in Example 1, except that 2.0 parts by weight of a bifunctional urethane curing agent was used instead of a bifunctional butadiene rubber curing agent based on 100 parts by weight of the obtained photocurable acrylic copolymer resin. In the same manner as in the optical adhesive film was prepared.
  • the dielectric constant k was measured by contacting electrodes on both sides of the optical adhesive films prepared in Examples 1-2 and Comparative Examples 1-2, and the dielectric constant k values were measured according to the following conditions and the following conditions.
  • Electrode diameter 5 mm
  • Comparative Example 1 had bubbles generated
  • Comparative Example 2 had a relatively high dielectric constant
  • Example 1-2 did not generate a bubble showing a good reliability while showing a low dielectric constant You can check it.
  • LCD liquid crystal display

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Abstract

Provided is an adhesive composition comprising a (meth)acrylic acid ester-based light-curing resin and an oxygen-free di-functional diene-based rubber hardener.

Description

터치 스크린 패널용 점착제 조성물, 광학용 점착 필름 및 터치 스크린 패널Adhesive composition for touch screen panels, adhesive film for optics and touch screen panel
터치 스크린 패널용 점착제 조성물, 광학용 점착 필름 및 터치 스크린 패널에 관한 것이다.It relates to an adhesive composition for a touch screen panel, an optical adhesive film, and a touch screen panel.
근래, PDA, 이동통신 단말기 또는 차량용 네비게이션 등과 같은 전자 기기가 큰 시장을 형성하고 있다. 이와 같은 전자 기기에 있어서, 추구되는 기술적 목표는 주로 박형화, 경량화, 저전력 소비화, 고해상도화 및 고휘도화 등을 들 수 있다. In recent years, electronic devices such as PDAs, mobile communication terminals, or vehicle navigation systems are forming a large market. In such an electronic device, the technical aims pursued are mainly thinner, lighter, lower power consumption, higher resolution, and higher brightness.
한편, 입력 조작부에 터치스크린 또는 터치패널 스위치가 설치된 전자 기기는, 경량화 및 깨짐 방지 등을 위하여, 투명 도전성 플라스틱 필름이 사용되고 있다. 그 예로는, 폴리에틸렌테레프탈레이트(PolyEthylenTerephthalate, PET) 필름을 기재로 하고, 그 일면에 인듐 주석 산화물(Indium Tin Oxide, ITO) 등의 도전층을 형성한 필름이 있으며, 상기 필름은 점착제층에 의해 전도성 유리, 보강재 또는 데코 필름 등에 적층되어 있다. On the other hand, in an electronic device provided with a touch screen or a touch panel switch in an input operation unit, a transparent conductive plastic film is used for light weight and prevention of cracking. Examples thereof include a film based on a polyethylene terephthalate (PET) film, and a conductive layer such as indium tin oxide (ITO) formed on one surface thereof, and the film is conductive by an adhesive layer. It is laminated | stacked on glass, a reinforcing material, or a decoration film.
상기 점착제층은 터치 민감도, 내구성 등의 다양한 물성이 요구된다.The pressure-sensitive adhesive layer is required for various physical properties such as touch sensitivity and durability.
본 발명의 일 구현예는 터치에 대한 민감도가 우수하고, 우수한 신뢰성을 가지는 점착제 조성물을 제공한다.One embodiment of the present invention provides an adhesive composition having excellent sensitivity to touch and excellent reliability.
본 발명의 다른 구현예는 상기 점착제 조성물로부터 제조된 광학용 점착 필름을 제공한다.Another embodiment of the present invention provides an optical adhesive film prepared from the pressure-sensitive adhesive composition.
본 발명의 또 다른 구현예는 상기 터치 스크린 패널용 점착제 조성물로부터 제조된 광학용 점착 필름을 적용한 터치 스크린 패널을 제공한다.Another embodiment of the present invention provides a touch screen panel to which the optical pressure-sensitive adhesive film prepared from the pressure-sensitive adhesive composition for touch screen panels is applied.
본 발명의 일 구현예에서, (메타)아크릴산 에스테르계 광경화성 수지; 및 산소 미함유 2관능 디엔계 고무 경화제를 포함하는 점착제 조성물을 제공한다.In one embodiment of the present invention, (meth) acrylic acid ester-based photocurable resin; And an oxygen-free bifunctional diene rubber curing agent.
상기 산소 미함유 2관능 디엔계 고무 경화제는 양 말단에 디엔계 2관능기를 포함할 수 있다.The oxygen-free bifunctional diene rubber curing agent may include a diene difunctional group at both ends.
상기 산소 미함유 2관능 디엔계 고무 경화제는, 예를 들어, 2관능 폴리부타디엔, 2관능 이소프렌 고무, 2관능 이소부틸렌-이소프렌 고무 또는 2관능 스티렌-부티렌 고무 등이거나, 이들의 조합으로부터 이루어진 군으로부터 선택된 하나를 포함할 수 있다.The oxygen-free bifunctional diene rubber curing agent is, for example, a bifunctional polybutadiene, a bifunctional isoprene rubber, a bifunctional isobutylene-isoprene rubber, a bifunctional styrene-butyrene rubber, or the like, or a combination thereof. It may include one selected from the group.
상기 산소 미함유 2관능 디엔계 고무 경화제의 중량평균분자량이 3,000 내지 20,000일 수 있다.The weight average molecular weight of the oxygen-free bifunctional diene rubber curing agent may be 3,000 to 20,000.
상기 산소 미함유 2관능 디엔계 고무 경화제는 주파수 100kHz에서 측정된 유전 상수 k값이 2.1 내지 2.5일 수 있다.The oxygen-free bifunctional diene rubber curing agent may have a dielectric constant k value of 2.1 to 2.5 measured at a frequency of 100 kHz.
상기 (메타)아크릴산 에스테르계 광경화성 수지 100 중량부; 및 상기 산소 미함유 2관능 디엔계 고무 경화제 0.1 내지 2 중량부를 포함할 수 있다.100 parts by weight of the (meth) acrylic acid ester-based photocurable resin; And 0.1 to 2 parts by weight of the oxygen-free bifunctional diene rubber curing agent.
상기 (메타)아크릴산 에스테르계 광경화성 수지는 (메타)아크릴산 에스테르 모노머; 및 히드록시기 함유 모노머, 카복실기 함유 모노머 또는 질소 함유 모노머 및 이들의 조합으로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 가교성 모노머가 함께 공중합된 수지일 수 있다.The (meth) acrylic acid ester-based photocurable resin is a (meth) acrylic acid ester monomer; And a crosslinkable monomer including at least one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof.
상기 (메타)아크릴산 에스테르 모노머는 알킬(메타)아크릴레이트이고, 상기 알킬(메타)아크릴레이트의 알킬은 선형 또는 분지형 C1-C14 알킬일 수 있다.The (meth) acrylic acid ester monomer may be alkyl (meth) acrylate, and the alkyl of the alkyl (meth) acrylate may be linear or branched C1-C14 alkyl.
상기 (메타)아크릴산 에스테르 모노머는 메틸 (메타)아크릴레이트, 에틸 (메타)아크릴레이트, n-프로필 (메타)아크릴레이트, 이소프로필 (메타)아크릴레이트, n-부틸 (메타)아크릴레이트, t-부틸 (메타)아크릴레이트, sec-부틸 (메타)아크릴레이트, 펜틸 (메타)아크릴레이트, 2-에틸헥실 (메타)아크릴레이트, 2-에틸부틸 (메타)아크릴레이트, n-옥틸(메타)아크릴레이트, 이소옥틸 (메타)아크릴레이트, 이소보닐 (메타)아크릴레이트, 이소노닐 (메타)아크릴레이트 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함할 수 있다.The (meth) acrylic acid ester monomer is 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) acrylic And isooctyl (meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and combinations thereof.
상기 가교성 모노머는 2-히드록시에틸 (메타)아크릴레이트, 2-히드록시프로필 (메타)아크릴레이트, 4-히드록시부틸 (메타)아크릴레이트, 6-히드록시헥실 (메타)아크릴레이트, 8-히드록시옥틸 (메타)아크릴레이트, 2-히드록시에틸렌글리콜 (메타)아크릴레이트, 2-히드록시프로필렌글리콜 (메타)아크릴레이트, 아크릴산, 메타크릴산, 2-(메타)아크릴로일옥시 아세트산, 3-(메타)아크릴로일옥시 프로필산, 4-(메타)아크릴로일옥시 부틸산, 아크릴산 이중체, 이타콘산, 말레산, 2-이소시아네이토에틸 (메타)아크릴레이트, 3-이소시아네이토프로필 (메타)아크릴레이트, 4-이소시아네이토부틸 (메타)아크릴레이트, (메타)아크릴아미드, N-비닐 피롤리돈, N-비닐 카프로락탐 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함할 수 있다.The crosslinkable monomer is 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 8 -Hydroxyoctyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate, 2-hydroxypropylene glycol (meth) acrylate, acrylic acid, methacrylic acid, 2- (meth) acryloyloxy acetic acid , 3- (meth) acryloyloxy propyl acid, 4- (meth) acryloyloxy butyl acid, acrylic acid duplex, itaconic acid, maleic acid, 2-isocyanatoethyl (meth) acrylate, 3- From isocyanatopropyl (meth) acrylate, 4-isocyanatobutyl (meth) acrylate, (meth) acrylamide, N-vinyl pyrrolidone, N-vinyl caprolactam and combinations thereof It may include the selected one.
상기 점착제 조성물은 광개시제를 더 포함할 수 있다.The pressure-sensitive adhesive composition may further include a photoinitiator.
상기 광개시제는 벤조인계 개시제, 히드록시 케톤계 개시제, 아미노 케톤계 개시제 카프로락탐 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함할 수 있다.The photoinitiator may include one selected from the group consisting of a benzoin initiator, a hydroxy ketone initiator, an amino ketone initiator caprolactam, and a combination thereof.
본 발명의 다른 구현예에서, 상기 점착제 조성물의 광경화물을 포함하는 점착제층을 포함하는 광학용 점착 필름을 제공한다.In another embodiment of the present invention, it provides an optical pressure-sensitive adhesive film comprising a pressure-sensitive adhesive layer containing a photocurable of the pressure-sensitive adhesive composition.
본 발명의 또 다른 구현예에서, 일면에 도전층이 형성된 전도성 플라스틱 필름층; 상기 도전층 상부에 적층된 상기 광학용 점착 필름; 및 상기 광학용 점착 필름 상부에 적층된 커버 윈도우층;을 포함하는 터치 스크린 패널을 제공한다.In another embodiment of the present invention, a conductive plastic film layer having a conductive layer formed on one surface; The optical adhesive film laminated on the conductive layer; It provides a touch screen panel comprising a; cover window layer laminated on the optical adhesive film.
상기 전도성 플라스틱 필름층이 도전성 금속 산화물층이 일면에 형성된 폴리에틸렌테레프탈레이트 필름일 수 있다.The conductive plastic film layer may be a polyethylene terephthalate film having a conductive metal oxide layer formed on one surface thereof.
상기 커버 윈도우는 투명한 유리 대체 플라스틱 필름 또는 강화 유리일 수 있다.The cover window may be a transparent glass replacement plastic film or tempered glass.
상기 점착제 조성물로부터 제조된 광학용 점착 필름은 터치에 대한 민감도가 매우 우수하면서도 우수한 신뢰성을 가진다.The optical pressure-sensitive adhesive film prepared from the pressure-sensitive adhesive composition has very good sensitivity to touch and excellent reliability.
도 1은 본 발명의 일 구현예에 따른 터치 스크린 패널의 개략적인 단면도이다.1 is a schematic cross-sectional view of a touch screen panel according to an embodiment of the present invention.
이하, 본 발명의 구현예를 상세히 설명하기로 한다. 다만, 이는 예시로서 제시되는 것으로, 이에 의해 본 발명이 제한되지는 않으며 본 발명은 후술할 청구항의 범주에 의해 정의될 뿐이다.Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, by which the present invention is not limited and the present invention is defined only by the scope of the claims to be described later.
본 발명의 (메타)아크릴산 에스테르계 광경화성 수지; 및 산소 미함유 2관능 디엔계 고무 경화제를 포함하는 점착제 조성물을 제공한다. (Meth) acrylic acid ester type photocurable resin of this invention; And an oxygen-free bifunctional diene rubber curing agent.
모바일, 태블릿 PC 등과 같은 표시 장치의 터치 스크린 패널 제조시 일면에 도전층이 형성된 전도성 플라스틱 필름층과 커버 윈도우층을 합착하기 위한 결합 매체로 사용되는 광학용 점착 필름이 상기 점착제 조성물로부터 제조될 수 있다.An optical adhesive film used as a bonding medium for bonding a conductive plastic film layer having a conductive layer formed on one surface and a cover window layer when manufacturing a touch screen panel of a display device such as a mobile or a tablet PC may be manufactured from the adhesive composition. .
상기 점착제 조성물의 상기 (메타)아크릴산 에스테르계 광경화성 수지를 광경화시켜 광학용 점착 필름이 형성될 수 있고, 상기 광학용 점착 필름은 광학적으로 투명하게 형성되어 터치 스크린 패널에 적용이 가능하며, 또한, 낮은 유전율을 갖는다. 이와 같이 낮은 유전율을 갖는 광학용 점착 필름은 터치에 대한 민감도가 증대되어 터치 스크린 패널에 적용하기 유용하다.An optical adhesive film may be formed by photocuring the (meth) acrylic acid ester-based photocurable resin of the pressure-sensitive adhesive composition, and the optical adhesive film may be optically transparent to be applied to a touch screen panel. , Has a low dielectric constant. As such, the optical adhesive film having a low dielectric constant is useful for applying to a touch screen panel due to increased sensitivity to touch.
상기 점착제 조성물 중 산소 미함유 2관능 디엔계 고무 경화제는 낮은 유전율을 갖는 물질로서, 상기 광학용 점착 필름이 낮은 유전율을 구현하도록 기여한다.Oxygen-free bifunctional diene rubber curing agent of the pressure-sensitive adhesive composition as a material having a low dielectric constant, contributes to the optical pressure-sensitive adhesive film to implement a low dielectric constant.
상기 산소 미함유 2관능 디엔계 고무 경화제는 낮은 유전율을 가지면서도 2관능이어서 경화시 상기 (메타)아크릴산 에스테르계 광경화성 수지 간 가교제로 작용할 수 있다.The oxygen-free bifunctional diene-based rubber curing agent has a low dielectric constant and is bifunctional, and thus may act as a crosslinking agent between the (meth) acrylic acid ester-based photocurable resins when cured.
구체적으로, 상기 산소 미함유 2관능 디엔계 고무 경화제는 양 말단에 디엔계 2관능기를 포함할 수 있다.Specifically, the oxygen-containing bifunctional diene rubber curing agent may include a diene difunctional group at both ends.
상기 산소 미함유 2관능 디엔계 고무 경화제는 전기음성도가 높은 산소를 함유하지 않기 때문에 비극성으로서, 저유전율의 구현이 가능하다. Since the oxygen-free bifunctional diene-based rubber curing agent does not contain oxygen having a high electronegativity, it is nonpolar, and thus low dielectric constant can be realized.
상기 산소 미함유 2관능 디엔계 고무 경화제는 전술한 바와 같이 2관능을 가지기 때문에 가교 역할이 가능하고, 그러나, 3관능 이상의 다관능이어서는 안된다. 즉, 상기 산소 미함유 2관능 디엔계 고무 경화제는 2관능이어서, 상기 (메타)아크릴산 에스테르계 광경화성 수지와 함께 조합되어 점착 필름 제조에 적합하다. 왜냐하면, (메타)아크릴산 에스테르계 광경화성 수지가 경화 이후 어느 정도 경도를 가지게 되는데, 만약 상기 경화제를 3관능 이상 다관능 화합물을 사용하게 되면, 가교 싸이트가 늘어나게 됨으로써, 그로부터 제조되는 점착 필름이 과도하게 단단해지기 때문에, 점착 필름으로서는 적당하지 않게 된다. The oxygen-free bifunctional diene-based rubber curing agent may have a crosslinking role because it has a bifunction as described above, but it should not be multifunctional more than trifunctional. That is, the oxygen-free bifunctional diene rubber curing agent is bifunctional, and is combined with the (meth) acrylic acid ester photocurable resin to be suitable for adhesive film production. This is because the (meth) acrylic acid ester-based photocurable resin has a certain degree of hardness after curing. If a trifunctional or higher polyfunctional compound is used as the curing agent, the crosslinking site is increased, and the adhesive film produced therefrom becomes excessive. Since it becomes hard, it will become unsuitable as an adhesive film.
따라서, 상기 산소 미함유 2관능 디엔계 고무 경화제는 양 말단의 디엔계 관능기 이외에 다른 관능기를 포함하지 않을 수 있다.Accordingly, the oxygen-free bifunctional diene rubber curing agent may not include other functional groups other than the diene-based functional groups at both ends.
상기 산소 미함유 2관능 디엔계 고무 경화제의 중량평균분자량이 약 3,000 내지 약 20,000 일 수 있다. 즉, 상기 산소 미함유 2관능 디엔계 고무 경화제의 상기 중량평균분자량 수준의 디엔계 고무 화합물로서, 수지 또는 올리고머 형태일 수 있다. 상기 범위의 중량평균분자량을 갖는 산소 미함유 2관능 디엔계 고무 경화제는 경화제로서 적절히 작용할 수 있다. The weight average molecular weight of the oxygen-free bifunctional diene rubber curing agent may be about 3,000 to about 20,000. That is, the diene rubber compound of the weight average molecular weight level of the oxygen-free bifunctional diene rubber curing agent, may be in the form of a resin or oligomer. The oxygen-free bifunctional diene rubber curing agent having a weight average molecular weight in the above range can function properly as a curing agent.
상기 산소 미함유 2관능 디엔계 고무 경화제는 주파수 100kHz에서 측정된 유전 상수 k값이 약 2.1 내지 약 2.5일 수 있다.The oxygen-free bifunctional diene-based rubber curing agent may have a dielectric constant k value measured at a frequency of 100 kHz of about 2.1 to about 2.5.
상기 산소 미함유 2관능 디엔계 고무 경화제는 2관능 폴리부타디엔, 2관능 이소프렌 고무, 2관능 이소부틸렌-이소프렌 고무, 2관능 스티렌-부티렌 고무 등 또는 이들의 조합을 포함할 수 있다. The oxygen-free bifunctional diene rubber curing agent may include a bifunctional polybutadiene, a bifunctional isoprene rubber, a bifunctional isobutylene-isoprene rubber, a bifunctional styrene-butyrene rubber, or the like, or a combination thereof.
이와 같이 상기 터치 스크린 패널용 점착제 조성물은 상기 산소 미함유 2관능 디엔계 고무 경화제를 포함하여 낮은 유전율을 가지도록 제조될 수 있는데, 구체적으로, 주파수 100kHz에서 측정된 유전 상수 k 값이 3.0 이하가 되도록 제조될 수 있다. 낮은 유전율을 갖는 터치 스크린 패널용 점착제 조성물로부터 제조된 광학용 점착 필름은 터치 민감도가 우수하다.As such, the pressure-sensitive adhesive composition for the touch screen panel may be manufactured to have a low dielectric constant including the oxygen-free bifunctional diene-based rubber curing agent. Specifically, the dielectric constant k value measured at a frequency of 100 kHz is 3.0 or less. Can be prepared. The optical adhesive film prepared from the pressure-sensitive adhesive composition for touch screen panels having a low dielectric constant is excellent in touch sensitivity.
상기 점착제 조성물은 상기 (메타)아크릴산 에스테르계 광경화성 수지 약 100 중량부; 및 상기 산소 미함유 2관능 디엔계 고무 경화제 약 0.1 내지 약 2 중량부를 포함할 수 있다.The pressure-sensitive adhesive composition is about 100 parts by weight of the (meth) acrylic acid ester photocurable resin; And about 0.1 to about 2 parts by weight of the oxygen-free bifunctional diene rubber curing agent.
상기 (메타)아크릴산 에스테르계 광경화성 수지는 (메타)아크릴산 에스테르 모노머; 및 히드록시기 함유 모노머, 카복실기 함유 모노머 또는 질소 함유 모노머 및 이들의 조합으로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 가교성 모노머가 함께 공중합된 수지일 수 있다.The (meth) acrylic acid ester-based photocurable resin is a (meth) acrylic acid ester monomer; And a crosslinkable monomer including at least one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof.
상기 (메타)아크릴산 에스테르 모노머는, 구체적으로, 알킬(메타)아크릴레이트이고, 상기 알킬(메타)아크릴레이트의 알킬은 선형 또는 분지형 C1-C14 알킬일 수 있다.Specifically, the (meth) acrylic acid ester monomer may be alkyl (meth) acrylate, and the alkyl of the alkyl (meth) acrylate may be linear or branched C1-C14 alkyl.
상기 (메타)아크릴산 에스테르 모노머는 메틸 (메타)아크릴레이트, 에틸 (메타)아크릴레이트, n-프로필 (메타)아크릴레이트, 이소프로필 (메타)아크릴레이트, n-부틸 (메타)아크릴레이트, t-부틸 (메타)아크릴레이트, sec-부틸 (메타)아크릴레이트, 펜틸 (메타)아크릴레이트, 2-에틸헥실 (메타)아크릴레이트, 2-에틸부틸 (메타)아크릴레이트, n-옥틸(메타)아크릴레이트, 이소옥틸 (메타)아크릴레이트, 이소보닐 (메타)아크릴레이트, 이소노닐 (메타)아크릴레이트 등일 수 있고, 또는 이들의 조합을 포함할 수 있다.The (meth) acrylic acid ester monomer is 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) acrylic Latex, isooctyl (meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and the like, or combinations thereof.
상기 가교성 모노머는, 분자 구조 내에 공중합성 관능기 (예를 들어, 탄소-탄소 이중 결합) 및 가교성 관능기를 동시에 포함하는 모노머를 의미한다.The crosslinkable monomer means a monomer having a copolymerizable functional group (eg, carbon-carbon double bond) and a crosslinkable functional group at the same time in its molecular structure.
상기 가교성 모노머는, 예를 들어, 히드록시기 함유 단량체, 카복실기 함유 단량체 또는 질소 함유 단량체 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함할 수 있고, 이에 한정되지 않는다.The crosslinkable monomer may include, for example, one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof, but is not limited thereto.
상기 가교성 모노머는, 구체적으로, 2-히드록시에틸 (메타)아크릴레이트, 2-히드록시프로필 (메타)아크릴레이트, 4-히드록시부틸 (메타)아크릴레이트, 6-히드록시헥실 (메타)아크릴레이트, 8-히드록시옥틸 (메타)아크릴레이트, 2-히드록시에틸렌글리콜 (메타)아크릴레이트, 2-히드록시프로필렌글리콜 (메타)아크릴레이트 등과 같은 히드록시기 함유 단량체; 아크릴산, 메타크릴산, 2-(메타)아크릴로일옥시 아세트산, 3-(메타)아크릴로일옥시 프로필산, 4-(메타)아크릴로일옥시 부틸산, 아크릴산 이중체, 이타콘산, 말레산 등과 같은 카르복실기 함유 단량체; 2-이소시아네이토에틸 (메타)아크릴레이트, 3-이소시아네이토프로필 (메타)아크릴레이트, 4-이소시아네이토부틸 (메타)아크릴레이트, (메타)아크릴아미드, N-비닐 피롤리돈, N-비닐 카프로락탐 등과 같은 질소 함유 단량체; 등일 수 있고, 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함할 수 있다.Specifically, the crosslinkable monomer is 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) Hydroxy group-containing monomers such as acrylate, 8-hydroxyoctyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate, 2-hydroxypropylene glycol (meth) acrylate, and the like; Acrylic acid, methacrylic acid, 2- (meth) acryloyloxy acetic acid, 3- (meth) acryloyloxy propyl acid, 4- (meth) acryloyloxy butyl acid, acrylic acid duplex, itaconic acid, maleic acid Carboxyl group-containing monomers such as the like; 2-isocyanatoethyl (meth) acrylate, 3-isocyanatopropyl (meth) acrylate, 4-isocyanatobutyl (meth) acrylate, (meth) acrylamide, N-vinyl pyrroli Nitrogen-containing monomers such as don, N-vinyl caprolactam and the like; And the like, and may include one selected from the group consisting of a combination thereof.
상기 점착제 조성물은 광경화형 조성물로서 중합도를 조절하기 위하여 광개시제를 더 포함할 수 있다. 상기 광개시제는 상기 (메타)아크릴산 에스테르계 광경화성 수지 100 중량부 기준 0.01 내지 10 중량부 함량으로 사용될 수 있고, 상기 광개시제의 종류는 광조사에 의해 라디칼을 발생시켜, 중합 반응을 개시시킬 수있는 것이라면, 특별히 한정되지 않으며, 예를 들어, 벤조인계 개시제, 히드록시 케톤계 개시제, 아미노 케톤계 개시제 카프로락탐 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함할 수 있다.The pressure-sensitive adhesive composition may further include a photoinitiator to control the degree of polymerization as a photocurable composition. The photoinitiator may be used in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the (meth) acrylic acid ester-based photocurable resin, and the type of the photoinitiator may generate radicals by light irradiation to initiate a polymerization reaction. It is not particularly limited, and may include, for example, one selected from the group consisting of a benzoin initiator, a hydroxy ketone initiator, an amino ketone initiator caprolactam, and a combination thereof.
또한, 상기 점착제 조성물은 발명의 효과에 영향을 미치지 않는 범위에서, 에폭시 수지, 가교제, 자외선 안정제, 산화 방지제, 조색제, 보강제, 충진제, 소포제, 계면 활성제, 가소제 및 이들의 조합으로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 더 포함할 수 있다.In addition, the pressure-sensitive adhesive composition is one selected from the group consisting of an epoxy resin, a crosslinking agent, an ultraviolet stabilizer, an antioxidant, a colorant, a reinforcing agent, a filler, an antifoaming agent, a surfactant, a plasticizer, and a combination thereof in a range that does not affect the effect of the invention. It may further include the above additives.
본 발명의 또 다른 구현예에서, 상기 점착제 조성물의 광경화물을 포함하는 광학용 점착 필름을 제공한다.In another embodiment of the present invention, it provides an optical adhesive film comprising a photocurable of the pressure-sensitive adhesive composition.
상기 터치 스크린 패널용 점착제 조성물을 기재층 상에 도포한 뒤 광조사에 의해 광경화하여 광학용 점착 필름을 제조할 수 있다. "광조사"는 광개시제 또는 중합성 화합물에 영향을 주어 중합 반응을 유발할 수 있는 전자기파의 조사를 의미하며, 상기에서 전자기파는 마이크로파, 적외선, 자외선, X선 및 γ선은 물론, α-입자선, 프로톤빔(proton beam), 뉴트론빔(neutron beam) 및 전자선(electron beam)과 같은 입자빔을 총칭하는 의미로 사용된다.After applying the pressure-sensitive adhesive composition for a touch screen panel on the substrate layer can be photocured by light irradiation to produce an optical pressure-sensitive adhesive film. "Light irradiation" refers to the irradiation of electromagnetic waves that can affect the photoinitiator or polymerizable compound to cause a polymerization reaction, wherein the electromagnetic waves are microwaves, infrared rays, ultraviolet rays, X-rays and γ-rays, as well as α-particle beams, Particle beams such as a proton beam, a neutron beam, and an electron beam are used generically.
상기 점착제 조성물을 광경화시켜 상기 광학용 점착 필름을 제조하는 방법은 특별히 제한되지 않는다. 예를 들면 상술한 상기 점착제 조성물 또는 여기에 용제를 추가하여 제조한 코팅액을, 바코터 등의 공지된 수단으로 적절한 공정 기재에 도포하고, 경화시키는 방법으로 상기 광학용 점착 필름을 제조할 수 있다.The method for producing the optical pressure-sensitive adhesive film by photocuring the pressure-sensitive adhesive composition is not particularly limited. For example, the optical pressure-sensitive adhesive film can be produced by applying the above-described pressure-sensitive adhesive composition or a coating solution prepared by adding a solvent thereto to a suitable process substrate by a known means such as a bar coater, and curing.
상기 경화 과정은, 점착제 조성물 또는 코팅액 내부에 포함된 휘발 성분 또는 반응 잔류물과 같은 기포 유발 성분을 충분히 제거한 후, 수행하여, 상기 경화물의 가교 밀도 또는 분자량, 탄성률 등을 적절하게 부여하고, 고온 상태에서 점착 계면에 존재하는 기포들이 커져 내부에서 산란체를 형성하는 문제점 등을 방지할 수 있다.The curing process is carried out after sufficiently removing the bubble-inducing components such as volatile components or reaction residues contained in the pressure-sensitive adhesive composition or the coating solution, to appropriately give the crosslinking density or molecular weight, elastic modulus, etc. of the cured product, The bubbles present in the adhesive interface may be increased to prevent a problem of forming scatterers therein.
또한, 상기 점착제 조성물 또는 그 코팅액을 경화시키는 방법은 특별히 한정되지 않고, 예를 들면, 상기 점착제 조성물 또는 그 코팅액에 의해 형성된 코팅층에 자외선을 조사하거나, 소정 조건에서 숙성(aging)하는 공정을 거쳐 경화 공정을 수행할 수 있다.In addition, the method of hardening the said adhesive composition or its coating liquid is not specifically limited, For example, it hardens | cures through the process of irradiating an ultraviolet-ray to the coating layer formed by the said adhesive composition or its coating liquid, or aging under predetermined conditions. The process can be carried out.
상기 광경화는 예를 들어 UV 조사에 의해 수행할 수 있다. The photocuring can be carried out, for example, by UV irradiation.
상기 광경화하기 위해 수행하는 UV 조사는 통상적으로 쓰이는 금속 할라이드 램프(Metal halide lamp)로 약 10초 내지 약 15초 동안 수행할 수 있다. UV irradiation performed for the photocuring may be performed for about 10 seconds to about 15 seconds with a metal halide lamp that is commonly used.
상기 UV 조사되는 광량은 바람직하게는 약 0.5J/cm2 내지 약 2.0 J/cm2 이 바람직하며 더욱 바람직하게는 약 1.0 J/cm2 내지 약 1.5 J/cm2 조사한다.The amount of light irradiated with UV is preferably about 0.5 J / cm 2 to about 2.0 J / cm 2 , and more preferably about 1.0 J / cm 2 to about 1.5 J / cm 2 .
상기 광학용 점착 필름은, 두께가 약 50 ㎛ 내지 약 300 ㎛, 구체적으로 약 100 ㎛ 내지 약 200 ㎛일 수 있다. 상기 광학용 점착 필름이 상기 범위의 두께를 갖도록 하여, 박형의 터치 패널 또는 터치 스크린에 적용 가능하면서도, 내구성이 우수한 점착 필름을 구현할 수 있다.The optical adhesive film may have a thickness of about 50 μm to about 300 μm, specifically about 100 μm to about 200 μm. By making the optical adhesive film have a thickness in the above range, while being applicable to a thin touch panel or a touch screen, it is possible to implement an adhesive film having excellent durability.
본 발명의 또 다른 구현예에서, 일면에 도전층이 형성된 전도성 플라스틱 필름층; 상기 도전층 상부에 적층된 상기 광학용 점착 필름; 및 상기 광학용 점착 필름 상부에 적층된 커버 윈도우층을 포함하는 터치 스크린 패널을 제공한다.In another embodiment of the present invention, a conductive plastic film layer having a conductive layer formed on one surface; The optical adhesive film laminated on the conductive layer; And it provides a touch screen panel comprising a cover window layer laminated on the optical adhesive film.
상기 커버 윈도우층은 강화 유리 또는 강화 유리를 대체할 수 있는 소재로서 개발된 투명한 유리 대체 플라스틱 필름을 사용할 수 있다. 상기 유리 대체 플라스틱 필름의 경우 다층 구조로 각 층에 다양한 기능성을 부여하여 형성할 수 있다. The cover window layer may use a transparent glass replacement plastic film developed as a material capable of replacing tempered glass or tempered glass. In the case of the glass replacement plastic film may be formed by imparting various functionalities to each layer in a multilayer structure.
도 1은 상기 터치 스크린 패널(100)의 개략적인 단면도이다.1 is a schematic cross-sectional view of the touch screen panel 100.
도 1에서, 상기 터치 스크린 패널(100)은, 커버 윈도우층(150); 광학용 점착 필름(110); 플라스틱 기재층(131) 상의 일면에 도전층(132)이 형성된 전도성 플라스틱 필름층(130); 및 투명 기판(160)을 포함할 수 있다. 또한, 상기와 같은 각 층을 포함하는 터치 스크린 패널(100)은, 액정표시장치(LCD)(170) 등과 같은 표시 장치에 부착되어 있을 수 있다. In FIG. 1, the touch screen panel 100 may include a cover window layer 150; Optical adhesive film 110; A conductive plastic film layer 130 having a conductive layer 132 formed on one surface of the plastic substrate layer 131; And a transparent substrate 160. In addition, the touch screen panel 100 including each layer as described above may be attached to a display device such as a liquid crystal display (LCD) 170.
상기 광학용 점착 필름(110)은 상기 점착제 조성물이 광경화되어 형성된 층으로서, 상기 광학용 점착 필름(110)에 대한 상세한 설명은 전술한 바와 같다.The optical pressure-sensitive adhesive film 110 is a layer formed by photocuring the pressure-sensitive adhesive composition, the detailed description of the optical pressure-sensitive adhesive film 110 is as described above.
상기 전도성 플라스틱 필름층(130)의 구체적인 종류는 특별히 제한되지 않고, 이 분야의 공지의 전도성 필름을 사용할 수 있다. 예를 들어, 상기 전도성 필름(130)으로, 일면에 도전층(132)으로서 ITO 전극층이 형성된 투명 플라스틱 필름일 수 있다. 구체적으로, 상기 플라스틱 기재층(131)을 형성하는 상기 투명 플라스틱 필름으로는, 폴리에틸렌테레프탈레이트 필름, 폴리테트라플로오루에틸렌 필름, 폴리에틸렌 필름, 폴리프로필렌 필름, 폴리부텐 필름, 폴리부타디엔 필름, 염화비닐 공중합체 필름, 폴리우레탄 필름, 에틸렌-비닐 아세테이트 필름, 에틸렌-프로필렌 공중합체 필름, 에틸렌-아크릴산 에틸 공중합체 필름, 에틸렌-아크릴산 메틸 공중합체 필름 또는 폴리이미드 필름 등을 사용할 수 있고, 이에 제한되지 않는다. 보다 구체적으로, 상기 플라스틱 기재층(131)은 폴리에틸렌테레프탈레이트(PET) 필름일 수 있다.The specific kind of the conductive plastic film layer 130 is not particularly limited, and a conductive film known in the art may be used. For example, the conductive film 130 may be a transparent plastic film having an ITO electrode layer formed as a conductive layer 132 on one surface thereof. Specifically, as the transparent plastic film forming the plastic base layer 131, polyethylene terephthalate film, polytetrafluoroethylene film, polyethylene film, polypropylene film, polybutene film, polybutadiene film, vinyl chloride air Copolymer film, polyurethane film, ethylene-vinyl acetate film, ethylene-propylene copolymer film, ethylene-ethyl acrylate copolymer film, ethylene-methyl acrylate copolymer film or polyimide film and the like can be used, but are not limited thereto. More specifically, the plastic base layer 131 may be a polyethylene terephthalate (PET) film.
이하 본 발명의 실시예 및 비교예를 기재한다. 그러한 하기한 실시예는 본 발명의 일 실시예일뿐 본 발명이 하기한 실시예에 한정되는 것은 아니다.Hereinafter, examples and comparative examples of the present invention are described. Such following examples are only examples of the present invention, and the present invention is not limited to the following examples.
(실시예)(Example)
실시예 1Example 1
에틸헥실아크릴레이트 85 중량부 및 가교성 모노머로서 히드록시프로필아크릴레이트 15 중량부를 1 리터 유리 반응기에 넣고 열중합시켜 점도 35cP의 광경화성 아크릴계 공중합 수지 시럽을 얻었다. 상기 광경화성 아크릴계 공중합 수지 시럽에 대하여 측정된 수산가 계산값는 62 mg KOH/g이다. 얻어진 광경화성 아크릴계 공중합 수지 100 중량부 (고형분 기준)에 대해 2관능 부타디엔 고무 경화제 0.5 중량부, 광개시제로서 a,a-메톡시-a-히드록시아세토페논 (Igacure 651, Ciba社) 0.5 중량부, 가교제로서 1,6-헥산디올디아크릴레이트 (HDDA) 0.35 중량부를 혼합한 후 충분히 교반하여 점착제 조성물을 제조하였다. 이어서, 상기 점착제 조성물을 100㎛ 두께로 성막하여 광경화하여 경화 필름으로서 광학용 점착 필름을 제조하였다. 85 parts by weight of ethylhexyl acrylate and 15 parts by weight of hydroxypropyl acrylate as a crosslinkable monomer were placed in a 1 liter glass reactor and thermally polymerized to obtain a photocurable acrylic copolymer resin syrup having a viscosity of 35 cP. The calculated hydroxyl value of the photocurable acrylic copolymer resin syrup is 62 mg KOH / g. 0.5 part by weight of a bifunctional butadiene rubber curing agent based on 100 parts by weight of the obtained photocurable acrylic copolymer resin (based on solids), 0.5 part by weight of a, a-methoxy-a-hydroxyacetophenone (Igacure 651, Ciba) as a photoinitiator, 0.35 parts by weight of 1,6-hexanedioldiacrylate (HDDA) as a crosslinking agent was mixed and then sufficiently stirred to prepare an adhesive composition. Subsequently, the pressure-sensitive adhesive composition was formed into a film with a thickness of 100 μm and photocured to prepare an optical pressure-sensitive adhesive film as a cured film.
실시예 2Example 2
실시예 1에서와 동일한 방법으로 광경화성 아크릴계 공중합 수지 시럽을 제조하였고, 얻어진 광경화성 아크릴계 공중합 수지 100 중량부 대비 2관능 부타디엔 고무 경화제 2.0 중량부를 사용한 점을 제외하고 실시예 1에서와 동일한 방법으로 광학용 점착 필름을 제조하였다.Photocurable acrylic copolymer resin syrup was prepared in the same manner as in Example 1, except that 2.0 parts by weight of a bifunctional butadiene rubber curing agent was used relative to 100 parts by weight of the obtained photocurable acrylic copolymer resin, and the optical method was the same as in Example 1. An adhesive film for was prepared.
비교예 1Comparative Example 1
실시예 1에서와 동일한 방법으로 광경화성 아크릴계 공중합 수지 시럽을 제조하였고, 얻어진 광경화성 아크릴계 공중합 수지 100 중량부 대비 2관능 부타디엔 고무 경화제 대신 2관능 우레탄 경화제 0.5 중량부를 사용한 점을 제외하고 실시예 1에서와 동일한 방법으로 광학용 점착 필름을 제조하였다.A photocurable acrylic copolymer resin syrup was prepared in the same manner as in Example 1, except that 0.5 parts by weight of a bifunctional urethane curing agent was used instead of a bifunctional butadiene rubber curing agent based on 100 parts by weight of the obtained photocurable acrylic copolymer resin. In the same manner as in the optical adhesive film was prepared.
비교예 2Comparative Example 2
실시예 1에서와 동일한 방법으로 광경화성 아크릴계 공중합 수지 시럽을 제조하였고, 얻어진 광경화성 아크릴계 공중합 수지 100 중량부 대비 2관능 부타디엔 고무 경화제 대신 2관능 우레탄 경화제 2.0 중량부를 사용한 점을 제외하고 실시예 1에서와 동일한 방법으로 광학용 점착 필름을 제조하였다.Photocurable acrylic copolymer resin syrup was prepared in the same manner as in Example 1, except that 2.0 parts by weight of a bifunctional urethane curing agent was used instead of a bifunctional butadiene rubber curing agent based on 100 parts by weight of the obtained photocurable acrylic copolymer resin. In the same manner as in the optical adhesive film was prepared.
평가evaluation
실험예 1Experimental Example 1
하기 기기와 하기 조건에 따라 상기 실시예 1-2 및 비교예 1-2에서 제조된 광학용 점착 필름의 양면에 전극을 접촉시킨 후 유전 상수 k값을 측정하여 하기 표 1에 기재하였다.The dielectric constant k was measured by contacting electrodes on both sides of the optical adhesive films prepared in Examples 1-2 and Comparative Examples 1-2, and the dielectric constant k values were measured according to the following conditions and the following conditions.
기기: Agilent Technologies E4980A LCR meterInstrument: Agilent Technologies E4980A LCR meter
테스트 주파수(Test Frequencies): 20 Hz - 2 MHzTest Frequencies: 20 Hz-2 MHz
전극 직경(Electrode diameter): 5mmElectrode diameter: 5 mm
실험예 2Experimental Example 2
상기 실시예 1-2 및 비교예 1-2에서 제조된 광학용 점착 필름을 사용하여 유리/접착 필름/유리의 적층 구조를 제작한 후 항온항습기 (85℃/85%RH) 에 3일간 방치 후 육안으로 기포 발생 여부 확인하였다. After the laminated structure of the glass / adhesive film / glass using the optical adhesive film prepared in Example 1-2 and Comparative Example 1-2 and left for 3 days in a thermo-hygrostat (85 ℃ / 85% RH) Visually, it was confirmed whether bubbles were generated.
실험예 3Experimental Example 3
상기 실시예 1-2 및 비교예 1-2에서 제조된 광학용 점착 필름을 사용하여 유리/접착 필름/유리의 적층 구조를 제작한 후 (-40℃ 1시간/80℃ 1시간)을 1 싸이클로 하여 30 사이클 진행한 후 육안으로 기포 발생 여부 확인하여 하기 표 1에 기재하였다.After the laminated structure of glass / adhesive film / glass was prepared using the optical adhesive films prepared in Examples 1-2 and Comparative Examples 1-2, (-40 ° C. 1 hour / 80 ° C. 1 hour) was changed to 1 cycle. After proceeding 30 cycles to determine whether the bubble is visually shown in Table 1 below.
표 1
유전율(@100kHz) 85℃/85%RH3일 방치 후기포발생여부 열충격 테스트-40℃/80℃30 사이클 후기포발생여부
실시예 1 3.16 X X
실시예 2 2.98 X X
비교예 1 3.24 O O
비교예 2 3.46 X X
Table 1
Dielectric constant (@ 100 kHz) 85 ℃ / 85% RH 3 days left post-mortem Thermal shock test -40 ℃ / 80 ℃ 30 cycle late foaming
Example 1 3.16 X X
Example 2 2.98 X X
Comparative Example 1 3.24 O O
Comparative Example 2 3.46 X X
상기 표 1에서 볼 수 있듯이, 비교예 1은 기포가 발생되었고, 비교예 2는 유전율이 상대적으로 높았으나, 실시예 1-2는 기포가 발생되지 않아서 우수한 신뢰성을 보여주면서 저 유전율을 구현하였음을 확인할 수 있다. As can be seen in Table 1, Comparative Example 1 had bubbles generated, Comparative Example 2 had a relatively high dielectric constant, but Example 1-2 did not generate a bubble showing a good reliability while showing a low dielectric constant You can check it.
이상에서 본 발명의 바람직한 실시예들에 대하여 상세하게 설명하였지만 본 발명의 권리 범위는 이에 한정되는 것은 아니고 다음의 청구 범위에서 정의하고 있는 본 발명의 기본 개념을 이용한 당업자의 여러 변형 및 개량 형태 또한 본 발명의 권리 범위에 속하는 것이다.Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of the invention.
<부호의 설명><Description of the code>
100: 터치 스크린 패널100: touch screen panel
110: 광학용 점착 필름110: optical adhesive film
131: 플라스틱 기재층131: plastic base layer
132: 도전층132: conductive layer
130: 전도성 플라스틱 필름층130: conductive plastic film layer
150: 커버 윈도우층150: cover window layer
160: 투명 기판160: transparent substrate
170: 액정표시 장치(LCD)170: liquid crystal display (LCD)

Claims (16)

  1. (메타)아크릴산 에스테르계 광경화성 수지; 및 산소 미함유 2관능 디엔계 고무 경화제를 포함하는 점착제 조성물.(Meth) acrylic acid ester type photocurable resin; And an oxygen-free bifunctional diene rubber curing agent.
  2. 제1항에 있어서,The method of claim 1,
    상기 산소 미함유 2관능 디엔계 고무 경화제는 양 말단에 디엔계 2관능기를 포함하는The oxygen-free bifunctional diene rubber curing agent includes a diene difunctional group at both ends.
    점착제 조성물.Pressure-sensitive adhesive composition.
  3. 제1항에 있어서,The method of claim 1,
    상기 산소 미함유 2관능 디엔계 고무 경화제는 2관능 폴리부타디엔, 2관능 이소프렌 고무, 2관능 이소부틸렌-이소프렌 고무, 2관능 스티렌-부티렌 고무 및 이들의 조합으로부터 이루어진 군으로부터 선택된 하나를 포함하는The oxygen-free bifunctional diene-based rubber curing agent comprises one selected from the group consisting of bifunctional polybutadiene, bifunctional isoprene rubber, bifunctional isobutylene-isoprene rubber, bifunctional styrene-butylene rubber, and combinations thereof.
    점착제 조성물.Pressure-sensitive adhesive composition.
  4. 제1항에 있어서,The method of claim 1,
    상기 산소 미함유 2관능 디엔계 고무 경화제의 중량평균분자량이 3,000 내지 20,000인 The weight average molecular weight of the oxygen-free bifunctional diene rubber curing agent is 3,000 to 20,000
    점착제 조성물.Pressure-sensitive adhesive composition.
  5. 제1항에 있어서,The method of claim 1,
    상기 산소 미함유 2관능 디엔계 고무 경화제는 주파수 100kHz에서 측정된 유전 상수 k값이 2.1 내지 2.5인The oxygen-free bifunctional diene rubber curing agent has a dielectric constant k of 2.1 to 2.5 measured at a frequency of 100 kHz.
    점착제 조성물.Pressure-sensitive adhesive composition.
  6. 제1항에 있어서,The method of claim 1,
    상기 (메타)아크릴산 에스테르계 광경화성 수지 100 중량부; 및 상기 산소 미함유 2관능 디엔계 고무 경화제 0.1 내지 2 중량부를 포함하는100 parts by weight of the (meth) acrylic acid ester photocurable resin; And 0.1 to 2 parts by weight of the oxygen-free bifunctional diene rubber curing agent.
    점착제 조성물.Pressure-sensitive adhesive composition.
  7. 제1항에 있어서,The method of claim 1,
    상기 (메타)아크릴산 에스테르계 광경화성 수지는 (메타)아크릴산 에스테르 모노머; 및 히드록시기 함유 모노머, 카복실기 함유 모노머 또는 질소 함유 모노머 및 이들의 조합으로 이루어진 군으로부터 선택된 적어도 하나를 포함하는 가교성 모노머가 함께 공중합된 수지인The (meth) acrylic acid ester-based photocurable resin is a (meth) acrylic acid ester monomer; And a crosslinkable monomer comprising at least one selected from the group consisting of a hydroxy group-containing monomer, a carboxyl group-containing monomer or a nitrogen-containing monomer, and a combination thereof.
    점착제 조성물.Pressure-sensitive adhesive composition.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 (메타)아크릴산 에스테르 모노머는 알킬(메타)아크릴레이트이고, 상기 알킬(메타)아크릴레이트의 알킬은 선형 또는 분지형 C1-C14 알킬인The (meth) acrylic acid ester monomer is an alkyl (meth) acrylate, and the alkyl of the alkyl (meth) acrylate is a linear or branched C1-C14 alkyl.
    점착제 조성물.Pressure-sensitive adhesive composition.
  9. 제7항에 있어서,The method of claim 7, wherein
    상기 (메타)아크릴산 에스테르 모노머는 메틸 (메타)아크릴레이트, 에틸 (메타)아크릴레이트, n-프로필 (메타)아크릴레이트, 이소프로필 (메타)아크릴레이트, n-부틸 (메타)아크릴레이트, t-부틸 (메타)아크릴레이트, sec-부틸 (메타)아크릴레이트, 펜틸 (메타)아크릴레이트, 2-에틸헥실 (메타)아크릴레이트, 2-에틸부틸 (메타)아크릴레이트, n-옥틸(메타)아크릴레이트, 이소옥틸 (메타)아크릴레이트, 이소보닐 (메타)아크릴레이트, 이소노닐 (메타)아크릴레이트 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함하는The (meth) acrylic acid ester monomer is 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) acrylic Containing one selected from the group consisting of latex, isooctyl (meth) acrylate, isobonyl (meth) acrylate, isononyl (meth) acrylate, and combinations thereof
    점착제 조성물.Pressure-sensitive adhesive composition.
  10. 제7항에 있어서,The method of claim 7, wherein
    상기 가교성 모노머는 2-히드록시에틸 (메타)아크릴레이트, 2-히드록시프로필 (메타)아크릴레이트, 4-히드록시부틸 (메타)아크릴레이트, 6-히드록시헥실 (메타)아크릴레이트, 8-히드록시옥틸 (메타)아크릴레이트, 2-히드록시에틸렌글리콜 (메타)아크릴레이트, 2-히드록시프로필렌글리콜 (메타)아크릴레이트, 아크릴산, 메타크릴산, 2-(메타)아크릴로일옥시 아세트산, 3-(메타)아크릴로일옥시 프로필산, 4-(메타)아크릴로일옥시 부틸산, 아크릴산 이중체, 이타콘산, 말레산, 2-이소시아네이토에틸 (메타)아크릴레이트, 3-이소시아네이토프로필 (메타)아크릴레이트, 4-이소시아네이토부틸 (메타)아크릴레이트, (메타)아크릴아미드, N-비닐 피롤리돈, N-비닐 카프로락탐 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함하는The crosslinkable monomer is 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 8 -Hydroxyoctyl (meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate, 2-hydroxypropylene glycol (meth) acrylate, acrylic acid, methacrylic acid, 2- (meth) acryloyloxy acetic acid , 3- (meth) acryloyloxy propyl acid, 4- (meth) acryloyloxy butyl acid, acrylic acid duplex, itaconic acid, maleic acid, 2-isocyanatoethyl (meth) acrylate, 3- From isocyanatopropyl (meth) acrylate, 4-isocyanatobutyl (meth) acrylate, (meth) acrylamide, N-vinyl pyrrolidone, N-vinyl caprolactam and combinations thereof Containing the selected one
    점착제 조성물.Pressure-sensitive adhesive composition.
  11. 제1항에 있어서,The method of claim 1,
    광개시제를 더 포함하는Further comprising a photoinitiator
    점착제 조성물.Pressure-sensitive adhesive composition.
  12. 제11항에 있어서,The method of claim 11,
    상기 광개시제는 벤조인계 개시제, 히드록시 케톤계 개시제, 아미노 케톤계 개시제 카프로락탐 및 이들의 조합으로 이루어진 군으로부터 선택된 하나를 포함하는The photoinitiator comprises one selected from the group consisting of a benzoin-based initiator, a hydroxy ketone-based initiator, an amino ketone-based initiator caprolactam, and combinations thereof
    점착제 조성물.Pressure-sensitive adhesive composition.
  13. 제1항 내지 제12항 중 어느 한 항에 따른 점착제 조성물의 광경화물을 포함하는 점착제층을 포함하는 광학용 점착 필름.The optical adhesive film containing the adhesive layer containing the photocured material of the adhesive composition of any one of Claims 1-12.
  14. 일면에 도전층이 형성된 전도성 플라스틱 필름층;A conductive plastic film layer having a conductive layer formed on one surface thereof;
    상기 도전층 상부에 적층된 제13항에 따른 광학용 점착 필름; 및An optical adhesive film according to claim 13 laminated on the conductive layer; And
    상기 광학용 점착 필름 상부에 적층된 커버 윈도우층Cover window layer laminated on the optical adhesive film
    을 포함하는 터치 스크린 패널.Touch screen panel comprising a.
  15. 제14항에 있어서,The method of claim 14,
    상기 전도성 플라스틱 필름층이 도전성 금속 산화물층이 일면에 형성된 폴리에틸렌테레프탈레이트 필름인The conductive plastic film layer is a polyethylene terephthalate film formed on one surface of the conductive metal oxide layer
    터치 스크린 패널.Touch screen panel.
  16. 제14항에 있어서,The method of claim 14,
    상기 커버 윈도우층은 투명한 유리 대체 플라스틱 필름 또는 강화 유리인The cover window layer is a transparent glass replacement plastic film or tempered glass
    터치 스크린 패널.Touch screen panel.
PCT/KR2015/009722 2014-09-16 2015-09-16 Adhesive composition for touch screen panel, optical adhesive film and touch screen panel WO2016043520A1 (en)

Priority Applications (3)

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CN201580049444.7A CN106795397B (en) 2014-09-16 2015-09-16 Adhesive composition for touch screen panel, optical adhesive film, and touch screen panel
US15/510,855 US10259977B2 (en) 2014-09-16 2015-09-16 Adhesive composition for touch screen panel, optical adhesive film and touch screen panel
JP2017513530A JP6490802B2 (en) 2014-09-16 2015-09-16 Adhesive composition for touch screen panel, optical adhesive film, and touch screen panel

Applications Claiming Priority (4)

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KR20140122866 2014-09-16
KR10-2014-0122866 2014-09-16
KR10-2014-0135554 2014-10-08
KR1020140135554A KR101900529B1 (en) 2014-09-16 2014-10-08 Adhesive composition for touch screen panel, optical adhesive film and touch screen panel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109072028A (en) * 2016-04-22 2018-12-21 株式会社Lg化学 Optical adhesive compositions and optical adhesive comprising its cured product

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7829605B2 (en) * 2005-05-31 2010-11-09 Denki Kagaku Kogyo Kabushiki Kaisha Energy ray-curable resin composition and adhesive using same
JP2011032410A (en) * 2009-08-04 2011-02-17 Bridgestone Corp Photocurable resin composition and adhesive sheet obtained from the same
KR20130063939A (en) * 2011-12-07 2013-06-17 제일모직주식회사 Photo-curable adhesive composition and display device comprising the same
KR20130143304A (en) * 2012-06-21 2013-12-31 (주)엘지하우시스 Adhesive composition including uv-curable rubber and protection films using the same
KR20140092362A (en) * 2011-11-14 2014-07-23 헨켈 유에스 아이피 엘엘씨 Adhesive compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022583A1 (en) * 2009-08-21 2011-02-24 Cardiac Pacemakers, Inc. Crosslinkable polyisobutylene-based polymers and medical devices containing the same
KR101591105B1 (en) * 2010-04-06 2016-02-02 (주)엘지하우시스 Pressure-sensitive adhesive film for touch panel and touch panel
EP2762506B1 (en) * 2011-09-27 2022-09-07 Kaneka Corporation (meth)acryloyl-terminated polyisobutylene polymer, method for producing same, and active energy ray-curable composition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7829605B2 (en) * 2005-05-31 2010-11-09 Denki Kagaku Kogyo Kabushiki Kaisha Energy ray-curable resin composition and adhesive using same
JP2011032410A (en) * 2009-08-04 2011-02-17 Bridgestone Corp Photocurable resin composition and adhesive sheet obtained from the same
KR20140092362A (en) * 2011-11-14 2014-07-23 헨켈 유에스 아이피 엘엘씨 Adhesive compositions
KR20130063939A (en) * 2011-12-07 2013-06-17 제일모직주식회사 Photo-curable adhesive composition and display device comprising the same
KR20130143304A (en) * 2012-06-21 2013-12-31 (주)엘지하우시스 Adhesive composition including uv-curable rubber and protection films using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109072028A (en) * 2016-04-22 2018-12-21 株式会社Lg化学 Optical adhesive compositions and optical adhesive comprising its cured product
CN109072028B (en) * 2016-04-22 2020-09-04 株式会社Lg化学 Optical adhesive composition and optical adhesive layer comprising cured product thereof

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TW201612276A (en) 2016-04-01

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