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WO2008038946A1 - Film protecteur de surface - Google Patents

Film protecteur de surface Download PDF

Info

Publication number
WO2008038946A1
WO2008038946A1 PCT/KR2007/004588 KR2007004588W WO2008038946A1 WO 2008038946 A1 WO2008038946 A1 WO 2008038946A1 KR 2007004588 W KR2007004588 W KR 2007004588W WO 2008038946 A1 WO2008038946 A1 WO 2008038946A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective film
surface protective
coating layer
substrate film
film according
Prior art date
Application number
PCT/KR2007/004588
Other languages
English (en)
Inventor
Young Hee Kim
Seong Hwan Kim
Dong Geun Kim
Jin Hur
Byung Seob Kim
Original Assignee
Youl Chon Chemical Co., Ltd.
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
Application filed by Youl Chon Chemical Co., Ltd. filed Critical Youl Chon Chemical Co., Ltd.
Priority to JP2009530261A priority Critical patent/JP5193210B2/ja
Publication of WO2008038946A1 publication Critical patent/WO2008038946A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29Laminated material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K3/2279Oxides; Hydroxides of metals of antimony
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/10Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C09J2301/162Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/40Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/41Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/006Presence of polyolefin in the substrate

Definitions

  • the invention relates to a surface protective film, and more particularly, to a surface protective film for protecting a surface of an electronic part or optic part, such as diffusion sheet, polarizer and the like.
  • an inner side of a substrate film means a side on which an adhesive layer and a release film are formed and an outer side of the substrate film means a side opposite to the inner side.
  • a surface protective film of an electronic part or optic part, such as diffusion sheet, polarizer and the like is typically made of plastics.
  • the plastics has a high electric insulation, so that it accumulates the static electricity for a long time, which is generated due to the friction between the plastics and the other materials.
  • it is required measures for preventing the electrification, such as the removal, neutralization or leakage of the charges accumulated.
  • an electrification prevention agent of alkali metal salt or surfactant is added to an adhesive layer formed on an inner side of a substrate film or a coating layer using conductive polymer is formed between the adhesive layer and the substrate film or on an outer surface of the substrate film. It is also known to use the conductive powders, instead of the conductive polymer.
  • An object of the invention is to provide a surface protective film capable of securing an EDS function (to prevent the member to be adhered due to the static electricity from being stuck to something else after releasing the surface protective film) and a constant adhesive force and having no adhesive-pushed phenomenon and no problem that the above physical properties are changed as time goes by.
  • a surface protective film comprising a substrate film, an adhesive layer formed on an inner side of the substrate film and an inner surface coating layer formed between the substrate film and the adhesive layer and containing conductive particles ATO 40-100 weight parts for urethane-based or acryl-based resin 100 weight parts.
  • the substrate film preferably consists of a poly olefin resin that is biaxially extended after an electrification prevention agent is applied thereto before extension.
  • a first additional coating layer containing a conductive polymer is preferably formed on an outer surface of the surface protective film, the first additional coating layer preferably further contains a pollution prevention agent and the first additional coating layer preferably further contains a rubber-based resin.
  • a contact angle of the first additional coating layer is preferably 110° or more.
  • an average diameter of the conductive particles ATO is preferably 0.01- ID.
  • the adhesive layer preferably contains an electrification prevention agent.
  • the urethane-based or acryl-based resin is preferably a ultraviolet curing urethane acrylate resin.
  • the inner surface coating layer of the substrate film is applied in a thickness of 1-20D.
  • a Haze of the surface protective film having the inner surface coating layer formed thereon is preferably 1% or less.
  • the inner surface coating layer of the substrate film has preferably a surface resistance of 10 -10 ⁇ .
  • a Haze of the surface protective film having the first additional coating layer formed thereto is preferably 3% or less.
  • a surface resistance of the first additional coating layer is preferably 10 -10 ⁇ .
  • the surface protective film prepared according to the invention is capable of securing an EDS function (to prevent the member to be adhered due to the static electricity from being stuck to something else after releasing the surface protective film) as well as an electrification prevention function and a constant adhesive force and does not exhibit the adhesive-pushed phenomenon and the problem that the above physical properties are changed as time goes by.
  • FIG. 1 is a schematic view showing a structure of a surface protective film according to an embodiment of the invention.
  • FIG. 2 is a schematic view showing a structure of a surface protective film according to another embodiment of the invention. Mode for the Invention
  • FIG. 1 is a schematic view showing a structure of a surface protective film according to an embodiment of the invention.
  • a surface protective film according to an embodiment of the invention comprises a substrate film 20, an inner surface coating layer 30 formed on an inner side of the substrate film, an adhesive layer 40 formed on the inner surface coating layer 30 and a release film 50 formed on the adhesive layer 40.
  • the inner surface coating layer 30, which contains the conductive particles ATO (Antimony Tin Oxide; Sb O -SnO ), preferably the ATO having an average diameter of 0.01-lD, 40-100 weight parts for ultraviolet curing urethane acrylate resin 100 weight parts, is formed between the substrate film 20 and the adhesive layer 40.
  • ATO Antimony Tin Oxide
  • the desirable ESD function and the favorable adhesive force can be provided and such physical properties are prevented from being changed as time goes by.
  • ITO may be used, instead of the ATO, which is an equivalent of the invention.
  • the ultraviolet curing urethane acrylate resin 100 weight parts, the propyl alcohol 20-50 weight parts and the ATO having an average diameter of 0.01— ID 40-100 weight parts are used.
  • the coating method of gravure, micro gravure, reverse, kiss-roll and the like is used.
  • An application thickness is 1-20D (Haze 1% or less).
  • the inner surface coating layer 30 formed as described above exhibits a surface resistance of 10 -10 ⁇ .
  • the inner surface coating layer 30 between the substrate film 20 and the adhesive layer 40 it is important to form the inner surface coating layer 30 between the substrate film 20 and the adhesive layer 40, rather than on the outer surface of the substrate film 20, so as to secure the ESD function.
  • the ATO is used to prevent the electrification, if the ATO is provided to the outer side of the substrate film 20, the desirable ESD function cannot be achieved.
  • the formation of the ATO on the outer side of the substrate film 20 is not preferable in the Haze aspect.
  • a poly olefin resin film of PET film is used, for example.
  • the film has a thickness of 5-200D, preferably 20-100D.
  • a poly olefin resin film may be used which is biaxially extended after an electrification prevention agent is applied thereto before extending the substrate film.
  • the polypropylene film having an electrification prevention property applied thereto may be also used as the substrate film.
  • the adhesive layer 40 is comprised of adhesive composition, in which the general adhesive may be used as a main ingredient.
  • the acryl-based resin having a high molecular weight of about 200,000-1,000,000 may be used (for example, butyl acrylate, ethylene-methyl methacrylate copolymer (EMMA) resin, ethylene-ethyl acrylate copolymer (EEA) resin, ethylene methyl acrylate copolymer (EMA) and the like).
  • EMMA ethylene-methyl methacrylate copolymer
  • EAA ethylene-ethyl acrylate copolymer
  • EMA ethylene methyl acrylate copolymer
  • a silicone-based adhesive may be used.
  • the electrification prevention agent may be further added to the main ingredient.
  • the known electrification prevention agent such as alkali metal salt, organic/inorganic conductive polymer and the other surfactants may be added.
  • the alkali metal salt alone or both the alkali metal salt and the conductive polymer may be used.
  • the alkali metal salt lithium amide (LiNH ) or lithium diethyl amide (LiN(C H ) ) is preferably used, in consideration of the surface resistance and peeling electrification performances.
  • the curing agent, solvent and the like are typically used in addition to the main ingredient and the electrification prevention agent.
  • Fig. 2 is a schematic view showing a structure of a surface protective film according to another embodiment of the invention.
  • the surface protective film of the invention may further comprise a first additional coating layer 10 that is formed on the outer surface of the substrate film 20 and has the electrification prevention, pollution prevention and cushion functions.
  • a conductive polymer having the electrical properties of metal and the mechanical properties and processability of polymer for example, poly thiophene, poly aniline and poly pyrrole.
  • polymer for example, poly thiophene, poly aniline and poly pyrrole.
  • poly thiophene having the most excellent physical property stability in the process conditions such as heat.
  • a fluorine-based compound such as fluoro acryl-based binder may be used so as to provide the pollution prevention function.
  • the first additional coating layer 10 comprising the conductive polymer and the pollution prevention agent is formed for the purpose of the electrification and pollution prevention, the electrification is prevented on the outer side of the substrate film, so that the mixing of the particles are prevented and the pollution due to the other contaminants such as fingerprint are also inhibited.
  • the first additional coating layer 10 is applied on the substrate film 20 in an amount of 0.2-0.4 g/m . At this time, an inherent resistance of the surface is 10 -10 ⁇ (Haze 3% or less; even when the first additional coating layer 10 is formed, Haze may be lowered to 3% or less).
  • the first additional coating layer 10 is formed so that a contact angle (measure device: GONIOSTAR Series, Surface tech company) is about 90° or more, preferably 100° or more, more preferably 110° or more.
  • the polypropylene has a contact angle of 108°
  • paraffin has a contact angle of 110°
  • Teflon has a contact angle of 112°.
  • the contact angle is maintained to be the contact angel or more of Teflon, no material is polluted.
  • the fluorine-based compound 10-25 weight parts is included for a total composition 100 weight parts of electrification and pollution prevention coating solution, so that a high contact angle of 110° or more can be achieved.
  • the coating solution for the electrification and pollution prevention is comprised of conductive polymer (for example, PEDOT/PSS) 1-10 wt%, fluoro acryl- based binder 10-25 wt%, propanol 10-20 wt% and water 50-80 wt%.
  • conductive polymer for example, PEDOT/PSS
  • fluoro acryl- based binder 10-25 wt%
  • propanol 10-20 wt% propanol 10-20 wt%
  • water 50-80 wt% water 50-80 wt%.
  • the coating method of gravure, micro gravure, reverse, kiss-roll and the like is used.
  • the drying temperature is 100 ⁇ 120°C and the drying time is 30 seconds - 2 minutes.
  • a rubber-based resin in which polypropylene is included as a binder may be coated to add a cushion function.
  • the release film 50 is provided to prevent the foreign material due to silicone from being added in releasing.
  • a PET film of 25D is coated with siloxane-based material having excellent compatibility with silicone for the purpose of electrification prevention, to which silicone is then release-coated. Further, an electrification prevention treatment may be carried out on the silicone release film. Thereby, it is possible to minimize the mixing of the foreign material due to the static electricity that may be generated when performing a laminating process with a member to be adhered.
  • the release film it may be used a film having a laminated structure such as non-corona poly olefin resin and release film for a FPCB carrier (for example, OPP/paper/OPP structure).
  • the conductive particle ATO having an average diameter of 0.01— ID (for 0.01D, 0.1D, 0.5D and ID, the same results were obtained for the respective weight parts of the embodiments and comparative examples 2-4 and 5-7.
  • 0.01-lD range there was no difference of the experiment results depending on the difference of the average diameters) was included in following amounts and was gravure-coated on the substrate film 20 in a thickness of 4D. Then, the adhesive layer 40 was formed.
  • a table 1 shows the ATO contents (weight part) of the embodiments. [45] Table 1
  • a table 2 shows the ATO contents (weight part) of the comparative examples. [47] Table 2
  • the ATO containing coating layer was formed on the outer side of the substrate film 20 (i.e., it was formed at the position of the first additional coating layer), rather than the inner surface coating layer 30, and the adhesive layer 40 was formed without the inner surface coating layer 30 (comparative example 7).
  • the inner surface coating layer 30 was formed on the substrate film 20 with the coating solution in which 70 weight parts of the ATO having an average particle size of 1. ID (comparative example 8), 1.3D (comparative example 9), 1.5D (comparative example 10) and 9.5 nm (comparative example 11), respectively, was put therein, and the adhesive layer 40 was formed.
  • the ESD function was measured in a manner of determining whether a polarizer having the surface protective film attached thereto was stuck to a hand when the surface protective film was released from the polarizer. The measure was performed 20 times. The case where the polarizer was not stuck at all was denoted as O, the case where the polarizer was stuck 1-19 times was denoted as ⁇ and the case where the polarizer was stuck 20 times was denoted as x.
  • a table 4 shows the experiment results of the comparative examples 1, 7 and 8. [60] Table 4
  • the surface protective film of the invention forms the inner surface coating layer containing the ATO between the substrate film and the adhesive layer, thereby securing the ESD function, as compared to the case where the inner surface coating layer containing the ATO does not have the ESD function (comparative example 1).
  • the inner surface coating layer containing the ATO when the content of the ATO was less than 40 weight parts for the ultraviolet curing urethane acrylate resin 100 weight parts (comparative examples 2-4) and the ATO containing layer was formed on the outer side of the substrate film (comparative example 7), rather than on the inner side thereof, the ESD function was relatively lower.
  • the average particle size of ATO was 1. ID, 1.3D and 1.5D.
  • a predetermined adhesive force was not secured and there occurred the change over time in the adhesive force.
  • the surface is roughened, which causes the non-uniform adhesive force and the change over time in the adhesive force.
  • the average particle size of ATO was 9.5 nm. At this time, although there was no problem in the adhesive force, the ESD function was lowered a little as time went by.
  • ATO have affect on the ESD function, the adhesive force and the change over time. This exhibits that the ATO should be provided at a predetermined position (between the substrate film and the adhesive layer) in a predetermined amount, preferably the ATO having a predetermined particle size should be present at a predetermined position in a predetermined amount.
  • the surface protective film prepared according to the invention is capable of securing an EDS function (to prevent the member to be adhered due to the static electricity from being stuck to something else after releasing the surface protective film) as well as an electrification prevention function and a constant adhesive force and does not exhibit the adhesive-pushed phenomenon and the problem that the above physical properties are changed as time goes by.

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

Abstract

L'invention concerne un film protecteur de surface comprenant un film de substrat et une couche adhésive formée une face intérieure du film de substrat. Le film comprend également une couche de revêtement de surface intérieure formée entre le film de substrat et la couche adhésive et contenant 40 à 100 parties en poids de particules conductrices d'ATO pour 100 parties en poids de résine à base d'uréthane ou à base d'acryle. Le film protecteur de surface préparé selon l'invention peut assurer une fonction EDS (pour empêcher l'élément à coller sous l'effet de l'électricité statique de se coller à autre chose après libération du film protecteur de surface) ainsi qu'une fonction de prévention d'électrification et une force adhésive constante et ne présente pas le phénomène de l'adhésif poussé et le problème caractérisé par le fait que les propriétés physiques susmentionnées sont modifiées à mesure que le temps passe.
PCT/KR2007/004588 2006-09-28 2007-09-20 Film protecteur de surface WO2008038946A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009530261A JP5193210B2 (ja) 2006-09-28 2007-09-20 表面保護フィルム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2006-0094978 2006-09-28
KR1020060094978A KR100803782B1 (ko) 2006-09-28 2006-09-28 표면 보호 필름

Publications (1)

Publication Number Publication Date
WO2008038946A1 true WO2008038946A1 (fr) 2008-04-03

Family

ID=39230340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/004588 WO2008038946A1 (fr) 2006-09-28 2007-09-20 Film protecteur de surface

Country Status (3)

Country Link
JP (1) JP5193210B2 (fr)
KR (1) KR100803782B1 (fr)
WO (1) WO2008038946A1 (fr)

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WO2013095522A1 (fr) * 2011-12-22 2013-06-27 Intel Corporation Ruban de découpage compatible avec les décharges électrostatiques à capacité d'inscription au laser
US10283640B2 (en) 2011-10-01 2019-05-07 Intel Corporation Source/drain contacts for non-planar transistors

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CN108865013A (zh) * 2018-07-02 2018-11-23 合肥萃励新材料科技有限公司 一种线路板用esd功能胶粘剂的制备方法
CN111040217A (zh) * 2019-12-27 2020-04-21 江苏双冠新材料科技有限公司 一种可应用于医疗用品行业的离型膜的制备方法

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CN102097157A (zh) * 2010-11-23 2011-06-15 苏州禾盛新型材料股份有限公司 背胶式透明导电膜
US10283640B2 (en) 2011-10-01 2019-05-07 Intel Corporation Source/drain contacts for non-planar transistors
US10770591B2 (en) 2011-10-01 2020-09-08 Intel Corporation Source/drain contacts for non-planar transistors
WO2013095522A1 (fr) * 2011-12-22 2013-06-27 Intel Corporation Ruban de découpage compatible avec les décharges électrostatiques à capacité d'inscription au laser

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