WO2016125977A1 - Ruban adhésif double face pour fixer un panneau d'écran tactile - Google Patents

Ruban adhésif double face pour fixer un panneau d'écran tactile Download PDF

Info

Publication number
WO2016125977A1
WO2016125977A1 PCT/KR2015/010465 KR2015010465W WO2016125977A1 WO 2016125977 A1 WO2016125977 A1 WO 2016125977A1 KR 2015010465 W KR2015010465 W KR 2015010465W WO 2016125977 A1 WO2016125977 A1 WO 2016125977A1
Authority
WO
WIPO (PCT)
Prior art keywords
methacrylate
double
weight
touch screen
parts
Prior art date
Application number
PCT/KR2015/010465
Other languages
English (en)
Korean (ko)
Inventor
고세윤
김광재
이용수
신승수
Original Assignee
(주)켐코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020150039085A external-priority patent/KR20160097101A/ko
Application filed by (주)켐코 filed Critical (주)켐코
Publication of WO2016125977A1 publication Critical patent/WO2016125977A1/fr

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • 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
    • C09J11/04—Non-macromolecular additives inorganic
    • 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

  • the present invention relates to a double-sided adhesive tape for fixing a touch screen panel, and more particularly, a touch interposed between the touch screen panel and the outer surface of the intermediate case to alleviate the shock generated when the window is touched by the touch screen and to impart waterproofness.
  • a double-sided adhesive tape for screen panel fixing is a double-sided adhesive tape for screen panel fixing.
  • Touch screens of such electronic devices are changing from a resistive film type to a capacitive glass type, and various conductive films and adhesive films are attached to the tempered glass.
  • an OTO (Optically Clear Adhesive) as well as an ITO film is used in the lower portion of the touch panel.
  • a double-sided adhesive tape is required to attach surfaces of different materials, and a general double-sided tape is manufactured by applying an adhesive to both sides of a rigid film such as PET.
  • a rigid film such as PET
  • the touch screen and the device body or the LCD panel part are often separated from each other.
  • double-sided adhesive tapes used for touch screen panels is wide because the use of them is increasing in places where there are water such as beaches and bathrooms. Although it has a very thin width of less than 2mm, it also requires durability, such as excellent heat resistance, waterproof performance and impact resistance. According to these requirements, a product using a double-sided adhesive tape coated with a pressure-sensitive adhesive layer on both sides using a foam such as PE-foam having excellent impact resistance is used, but a double-sided adhesive tape using the foam as a substrate controls water penetration. The bubble walls of the independent bubbles can not be sufficiently secured in the width direction, so that sufficient waterproofness is not achieved.
  • the size of the foam shape is limited, it is difficult to finely control the size and has a low density structure and low modulus of elasticity, thereby preventing the reliability of durability.
  • An object of the present invention is to provide a double-sided adhesive tape for fixing a touch screen panel having excellent durability reliability such as adhesiveness, heat resistance, waterproofness, and impact resistance, which has a useful effect for fixing a panel of a touch screen.
  • An object of the present invention is a touch screen panel comprising a substrate layer, a binder layer formed on the upper and lower surfaces of the substrate layer and an adhesive layer formed on the upper and lower surfaces of the substrate layer on which the binder layer is formed.
  • the base layer is formed to a thickness of 1.4 to 50 ⁇ m, both sides of the corona discharge treated synthetic resin.
  • the synthetic resin is to be made of polyethylene terephthalate colored with a black pigment.
  • the binder layer is to be made by mixing 0.05 to 0.5 parts by weight of beads 100 parts by weight of acrylic resin.
  • the beads have an average diameter of 5 to 200 ⁇ m, and consists of one or more selected from the group consisting of thermally expandable resins, glass macroballoons, glass bubbles and silica beads. do.
  • the adhesive layer is composed of 100 parts by weight of acrylic resin, 10 to 50 parts by weight of solvent and 0.1 to 10 parts by weight of a curing agent.
  • the acrylic resin is butyl acrylate, butyl methacrylate, hexyl acrylate, hexyl methacrylate, n-octyl acrylate, n-octyl methacrylate, isooctyl acrylate, And at least one selected from the group consisting of isooctyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, isononyl acrylate and isononyl methacrylate.
  • the acrylic resin is composed of methacrylic acid, 2-methacryloxy acetic acid, 3-methacryloxy propyl acid, 4-methacryloxy butyl acid, fumaric acid, maleic acid and maleic anhydride
  • methacrylic acid 2-methacryloxy acetic acid
  • 3-methacryloxy propyl acid 4-methacryloxy butyl acid
  • fumaric acid maleic acid and maleic anhydride
  • 2-hydroxyethyl methacrylate 2-hydroxypropyl methacrylate
  • 4-hydroxybutyl methacrylate 6-hydroxyhexyl methacrylate
  • 8-hydroxyoctyl methacrylate 2-hydroxyethylene glycol methacrylate
  • the double-sided adhesive tape for fixing the touch screen panel according to the present invention has excellent durability reliability, such as adhesiveness, heat resistance, waterproofness, and impact resistance, thereby exhibiting useful effects for fixing the panel of the touch screen.
  • FIG. 1 is an exploded perspective view showing a double-sided adhesive tape for fixing a touch screen panel according to the present invention.
  • the double-sided adhesive tape for fixing the touch screen panel according to the present invention includes a base layer 10, a base layer 10 formed on the top and bottom surfaces of the base layer 10, and a base layer on which the binder layer 20 is formed. It consists of an adhesive layer 30 formed on the upper and lower surfaces of (10).
  • the base layer 10 is a layer serving as a base material of the double-sided adhesive tape for fixing the touch screen panel according to the present invention, and is made of a synthetic resin film having a thickness of 1.4 to 50 ⁇ m, more preferably showing a thickness of 1.4 to 38 ⁇ m. .
  • both surfaces are oxidized, concavo-convexed, or the like.
  • the surface treatment can be performed.
  • the oxidation method includes corona discharge treatment, chromic acid treatment, plasma discharge treatment and ultraviolet irradiation treatment, and the concavo-convex method includes a sand blasting method and a solvent treatment method. Corona discharge treatment is most preferred.
  • the base layer 10 applied to the double-sided adhesive tape of the present invention is preferably made of polyethylene terephthalate, more preferably made of polyethylene terephthalate colored with black pigment to improve the light shielding function.
  • the binder layer 20 is formed on the upper and lower surfaces of the base layer 10, and is made by mixing 0.05 to 3 parts by weight of beads with 100 parts by weight of acrylic resin, both sides for fixing the touch screen panel according to the present invention. It serves to improve the heat resistance, water resistance and impact resistance of the adhesive tape.
  • the content of the beads is less than 0.05 parts by weight, the above effects are insignificant.
  • the content of the beads exceeds 0.5 parts by weight, the adhesive strength of the binder layer 20 may be lowered.
  • the bead is an average diameter of 5 to 200 ⁇ m, preferably made of one or more selected from the group consisting of a thermally expandable resin, glass macroballoon (glass macroballoon), glass bubbles and silica beads.
  • the adhesive layer 30 is formed to a thickness of 30 to 100 ⁇ m on the upper and lower surfaces of the base layer 10, the binder layer 20 is formed, a group consisting of silicone-based, acrylic, rubber-based and urethane-based adhesive resin It is made by mixing a solvent and a curing agent to one or more resins selected from, 10 to 50 parts by weight of the solvent and 0.1 to 10 parts by weight of the curing agent is mixed, the resin is yellowing resistance and excellent optical properties Preference is given to using acrylics.
  • the polymer Since the polymer has a higher molecular weight, the higher the adhesion, and the higher the molecular weight, the higher the cohesion, the higher the PSI (polydispersity index) of the acrylic resin is 6 to 10, preferably 5 to 12. It is preferable that the composition of the acrylic resin is not particularly limited but may include an acrylic ester monomer.
  • the acrylic ester monomers are butyl acrylate, butyl methacrylate, hexyl acrylate, hexyl methacrylate, n-octyl acrylate, n-octyl methacrylate, isooctyl acrylate, isooctyl methacrylate, 2- It consists of one or more selected from the group consisting of ethylhexyl acrylate, 2-ethylhexyl methacrylate, isononyl acrylate, isononyl methacrylate, the acrylic monomer used in the present invention is glass transition in consideration of impact resistance and adhesion Most preferably, acrylic ester monomers having a temperature in the range of -80 ° C to -50 ° C are used.
  • the acrylic resin that can be used in the present invention is selected from the group consisting of methacrylic acid, 2-methacryloxy acetic acid, 3-methacryloxy propyl acid, 4-methacryloxy butyl acid, fumaric acid, maleic acid and maleic anhydride Hana, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 4-hydroxybutyl methacrylate, 6-hydroxyhexyl methacrylate, 8-hydroxyoctyl methacrylate and 2- It may be made by copolymerizing one selected from the group consisting of hydroxyethylene glycol methacrylate.
  • the solvent contains 10 to 50 parts by weight, and any component can be used as long as it is a component that can be used to synthesize the acrylic resin, but any one may be used, but ethyl acetate, cyclohexane, n-hexane, acetone, dimethyl carbonate , Methanol, ethanol and isopropyl alcohol is preferably made of one or more selected from the group consisting of, if the content of the solvent is less than 10 parts by weight of the viscosity of the adhesive resin is high may cause problems during coating work, the solvent When the amount exceeds 50 parts by weight of the solid content is reduced there is a fear that the physical properties of the adhesive layer is lowered.
  • the curing agent contains 0.1 to 10 parts by weight, and serves to crosslink the acrylic resin, at least one selected from the group consisting of isocyanate compounds, epoxy resins, melamine resins, urea resins, dialdehydes and metal chelate compounds. It is preferable to make.
  • the content of the curing agent is less than 0.1 parts by weight, there is a fear that the durability failure of the first adhesive layer under high temperature and high humidity conditions may occur and the durability is lowered, if the content of the curing agent exceeds 10 parts by weight Due to deterioration, there is a fear that fluidity may decrease.
  • the adhesive layer 30 composed of the above components is conventionally used in the production of double-sided tape, such as a bar coat method, a reverse roll coat method, a knife coat method, a roll knife coat method, a gravure coat method and a doctor blade coat method.
  • double-sided tape such as a bar coat method, a reverse roll coat method, a knife coat method, a roll knife coat method, a gravure coat method and a doctor blade coat method.
  • the substrate having a release property is polyethylene terephthalate, polyethylene, polypropylene, polybutene, polybutadiene, polymethylpentene, polyvinyl chloride, vinyl chloride copolymer, polyurethane, polystyrene, polycarbonate, fluorocarbon resin, low density It is composed of one selected from a resin film such as polyethylene and triacetyl cellulose, or a group consisting of fine paper, coated paper, glassine paper, laminated paper, and the like.
  • a substrate having releasability made of one of the above components has excellent elasticity and in terms of price.
  • An inexpensive polyethylene terephthalate film is preferable, and in this case, the thickness of the substrate having the releasability is preferably made of 5 to 200 ⁇ m, more preferably 50 to 100 ⁇ m.
  • Both surfaces of the polyethylene terephthalate film having a thickness of 25 ⁇ m were subjected to corona treatment to prepare a base layer.
  • a binder mixture was prepared by mixing 0.5 parts by weight of glass bubbles (3M Microspheres, K20) with 100 parts by weight of an acrylic resin composed of 3 parts of acrylate and stirring the mixture.
  • the prepared coating liquid mixture was coated on a release surface of a polyethylene terephthalate film having a thickness of 50 ⁇ m to 70 ⁇ m thickness to prepare an adhesive.
  • Example 2 Proceed in the same manner as in Example 1, 10 parts by weight of ethyl acrylate monomer, 30 parts by weight of butyl acrylate monomer, 40 parts by weight of 2-ethylhexyl acrylate monomer, 10 parts by weight of vinyl acrylate monomer, 2-hydroxyethyl 2 parts by weight of acrylic resin consisting of 2 parts by weight of methacrylate, 3 parts by weight of hydroxy propyl acrylate, 0.5 parts by weight of glass bubble (3M Microspheres, K20) was mixed and agitated using a binder mixture prepared by agitating both sides for fixing the touch screen panel An adhesive tape was prepared.
  • a binder mixture prepared by agitating both sides for fixing the touch screen panel
  • Example 2 Proceed in the same manner as in Example 1, 10 parts by weight of ethyl acrylate monomer, 40 parts by weight of butyl acrylate monomer, 30 parts by weight of 2-ethylhexyl acrylate monomer, 10 parts by weight of vinyl acrylate monomer, 2-hydroxyethyl 2 parts by weight of acrylic resin consisting of 2 parts by weight of methacrylate, 3 parts by weight of hydroxy propyl acrylate, 0.5 parts by weight of glass bubble (3M Microspheres, K20) was mixed and agitated using a binder mixture prepared by agitating both sides for fixing the touch screen panel An adhesive tape was prepared.
  • a binder mixture prepared by agitating both sides for fixing the touch screen panel
  • Example 2 Proceed in the same manner as in Example 1, to form a base layer with a polyethylene foam of 100 ⁇ m thickness to prepare a double-sided adhesive tape for fixing the touch screen panel.
  • Example 2 Proceed in the same manner as in Example 1, to form a base layer of a polyethylene foam of 200 ⁇ m thickness to prepare a double-sided adhesive tape for fixing the touch screen panel.
  • the peel strength was laminated to a polyethylene terephthalate film having a thickness of 25 ⁇ m on one surface of the manufactured double-sided tape and a measurement specimen having a width of 25mm and a length of 200mm was manufactured. Then, SUS (steel use stainless) PC (poly carbonate), Glass Five specimens each were attached by pressing two round trips with a 2 kg hand roller, and then left at room temperature for 30 minutes and then double-sided at 180 ° under a tensile speed of 300 mm / min using a tensile tester. Peel strength of the inside and outside of the tape was measured.
  • the double-sided tape prepared through Examples 1 to 6 of the present invention exhibits an adhesive force comparable to that of the double-sided tapes of Comparative Examples 1 to 3, in which the content of the glass bubble is controlled so that the glass bubble is not contained. Able to know.
  • the waterproof performance is made of double-sided adhesive tape in the shape of a frame, punched into 40mm wide, 60mm long and 1mm wide, attached to one side of acrylic plate 50mm wide, 70mm wide and 5mm wide, and covered with acrylic plate on the other side. After the specimen was prepared so that the double-sided adhesive tape was positioned in between, it was left to stand in a water tank of 1 m depth for 30 minutes to visually observe the appearance to determine whether the specimen was submerged inside.
  • the durability is prepared according to ASTM D3433 PC board (width 50mm, length 100mm, thickness 5mm) and L-type SUS plate (width 30mm, length 30mm, thickness 1mm) and prepared double-sided adhesive tape 25mm in width, 25mm in length After attaching the specimen made by punching between the PC plate and L-type SUS plate, it was put in an oven at 85 °C was put a 250g weight was used to measure the time the specimen falls.
  • the impact resistance is prepared after preparing glass specimens (25mm wide, 25mm wide, 5mm high) and PC boards (50mm wide, 25mm high, 2mm high), and after cutting the double-sided adhesive tape into 3mm size and sticking them to both ends of the glass specimen. After cutting the tape to fit the specimen size and removing it, attach the glass to the center of the PC board, compress it for 1 minute with a load of 3kg, and after 24 hours of ag- ing, drop the 150g weight from 50mm to 400mm in sequence and drop it. The method of measuring this peeling height was used. ⁇
  • Examples 1 to 2 have better impact resistance than Comparative Examples 2 to 3 using PE foam as the base layer.
  • the double-sided adhesive tape for fixing the touch screen panel according to the present invention has excellent durability reliability, such as adhesiveness, heat resistance, waterproofness, and impact resistance, thereby exhibiting useful effects for fixing the panel of the touch screen.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesive Tapes (AREA)

Abstract

La présente invention concerne un ruban adhésif double face pour fixer un panneau d'écran tactile qui comprend, plus particulièrement, une couche de base, des couches de liant formées sur les faces supérieure et inférieure de la couche de base, et des couches adhésives formées sur les faces supérieure et inférieure de la couche de base portant lesdites couches de liant formées sur celle-ci. Le ruban adhésif double face pour fixer un panneau d'écran tactile qui présente ladite structure, manifeste d'excellentes adhérence, résistance à la chaleur, propriétés d'étanchéité à l'eau, et résistance aux chocs par incorporation de billes dans lesdites couches de liant.
PCT/KR2015/010465 2015-02-05 2015-10-02 Ruban adhésif double face pour fixer un panneau d'écran tactile WO2016125977A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20150018115 2015-02-05
KR10-2015-0018115 2015-02-05
KR1020150039085A KR20160097101A (ko) 2015-02-05 2015-03-20 터치스크린 패널 고정용 양면 점착테이프
KR10-2015-0039085 2015-03-20

Publications (1)

Publication Number Publication Date
WO2016125977A1 true WO2016125977A1 (fr) 2016-08-11

Family

ID=56564289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/010465 WO2016125977A1 (fr) 2015-02-05 2015-10-02 Ruban adhésif double face pour fixer un panneau d'écran tactile

Country Status (1)

Country Link
WO (1) WO2016125977A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115124943A (zh) * 2021-03-26 2022-09-30 利诺士尖端材料有限公司 柔性显示器用粘结片及包括其的柔性显示器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07316515A (ja) * 1994-05-24 1995-12-05 Sekisui Chem Co Ltd アクリル系両面粘着テープ
JPH093418A (ja) * 1995-06-20 1997-01-07 Sekisui Chem Co Ltd 両面粘着テープ
KR20130092112A (ko) * 2012-02-10 2013-08-20 (주)앤디포스 내충격성이 우수한 터치스크린 패널용 양면테이프
JP2013249367A (ja) * 2012-05-31 2013-12-12 Hitachi Kasei Polymer Co Ltd 両面粘着テープ
KR101471361B1 (ko) * 2014-03-18 2014-12-11 (주)앤디포스 터치스크린 패널용 양면테이프 및 그 제조방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07316515A (ja) * 1994-05-24 1995-12-05 Sekisui Chem Co Ltd アクリル系両面粘着テープ
JPH093418A (ja) * 1995-06-20 1997-01-07 Sekisui Chem Co Ltd 両面粘着テープ
KR20130092112A (ko) * 2012-02-10 2013-08-20 (주)앤디포스 내충격성이 우수한 터치스크린 패널용 양면테이프
JP2013249367A (ja) * 2012-05-31 2013-12-12 Hitachi Kasei Polymer Co Ltd 両面粘着テープ
KR101471361B1 (ko) * 2014-03-18 2014-12-11 (주)앤디포스 터치스크린 패널용 양면테이프 및 그 제조방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115124943A (zh) * 2021-03-26 2022-09-30 利诺士尖端材料有限公司 柔性显示器用粘结片及包括其的柔性显示器
CN115124943B (zh) * 2021-03-26 2024-01-26 利诺士尖端材料有限公司 柔性显示器用粘结片及包括其的柔性显示器

Similar Documents

Publication Publication Date Title
WO2013118933A1 (fr) Bande adhésive double face pour écran tactile ayant une résistance aux chocs supérieure
CN103228748B (zh) 双面粘结片和包括该粘结片的触控面板用显示设备
KR101622867B1 (ko) 점착제 조성물 및 그를 이용한 점착 테이프
WO2013187571A1 (fr) Film adhésif optique ayant un excellent effet de décollement à des températures élevées
KR101918774B1 (ko) 양면 감압성 접착 시트
KR102295355B1 (ko) 양면 점착 시트 및 그 제조 방법
JP6005060B2 (ja) 改善された再加工性を有する両面接着テープ
WO2012070796A2 (fr) Composition adhésive pour panneau tactile, film adhésif et panneau tactile
WO2014204251A1 (fr) Composition collante-adhésive
WO2020040426A1 (fr) Ruban double face résistant au choc pour dispositif d'affichage
CN102906207B (zh) 粘结剂组合物、粘结片及触控面板
KR20170139596A (ko) 자외선 경화형 점착 시트 및 점착 시트
CN104817970A (zh) 双面粘合片
KR20160082543A (ko) 휴대 전자기기 부재 고정용 양면 점착 시트 및 휴대 전자기기의 제조 방법
CN104053734A (zh) 粘合带
CN105238283A (zh) 粘合片
CN104039912A (zh) 粘合带
WO2016125976A1 (fr) Ruban adhésif double face pour la fixation d'un panneau d'écran tactile
KR20130093033A (ko) 양면 점착 테이프
CN103998553A (zh) 粘合剂、粘合剂层以及粘合片
WO2018030755A1 (fr) Ruban double face utilisant une perle à base de polymère, en tant qu'absorbeur de chocs destiné à l'absorption d'impacts
WO2019009536A1 (fr) Pellicule détachable à base de silicone acrylique et son procédé de fabrication
KR20160037721A (ko) 터치스크린 패널 고정용 양면 점착 테이프
WO2014163300A1 (fr) Composition adhésive pour écran tactile, film adhésif et écran tactile
KR102044248B1 (ko) 다층 구조의 광학용 점착 시트, 다층 구조의 광학용 점착 시트의 제조 방법 및 터치 스크린 패널

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15881295

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15881295

Country of ref document: EP

Kind code of ref document: A1