CN105229100B - It is laminated adhesive sheet, relative dielectric constant method of adjustment and its application - Google Patents

It is laminated adhesive sheet, relative dielectric constant method of adjustment and its application Download PDF

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Publication number
CN105229100B
CN105229100B CN201480025770.XA CN201480025770A CN105229100B CN 105229100 B CN105229100 B CN 105229100B CN 201480025770 A CN201480025770 A CN 201480025770A CN 105229100 B CN105229100 B CN 105229100B
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agent layer
methyl
adhering agent
dielectric constant
relative dielectric
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CN105229100A (en
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山本真之
高草木绘美
石田立治
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New Oji Paper Co Ltd
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Oji Paper Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • 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
    • C09J133/08—Homopolymers or copolymers of acrylic acid esters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered 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
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/025—Electric or magnetic properties
    • 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
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2405/00—Adhesive articles, e.g. adhesive tapes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • C09J2301/1242—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape the opposite adhesive layers being different
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/208—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer

Landscapes

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

Abstract

It is an object of the invention to find a kind of method for more accurately controlling relative dielectric constant, and provide a kind of adhesive sheet that relative dielectric constant is controlled using the control method.The present invention relates to one kind to be laminated adhesive sheet, it is characterised in that：It is at least to have the 1st adhering agent layer and the 2nd adhering agent layer, and the poor absolute value of the relative dielectric constant under the frequency 1MHz of the 1st adhering agent layer and the 2nd adhering agent layer is more than 0.5.And then the present invention relates to one kind stacking adhesive sheet, it is characterised in that：The 2nd adhering agent layer for being more than 4 with the relative dielectric constant under the relative dielectric constant under frequency 1MHz not the 1st adhering agent layer up to 4 and frequency 1MHz.

Description

It is laminated adhesive sheet, relative dielectric constant method of adjustment and its application
Technical field
The present invention relates to one kind stacking adhesive sheet, relative dielectric constant method of adjustment and its application.Specifically, it is of the invention It is related to the stacking adhesive sheet that a kind of relative dielectric constant is controlled, and is the stacking adhesive sheet that can play required adherence.
Background technology
In recent years, in various fields, liquid crystal display (Liquid Crystal Display, LCD) etc. is widely used The input unit that display device or touch-screen etc. are combined and used with display device.Manufacturing these display devices or input dress When putting, in the purposes of fitting optical component, using transparent double-faced pressure-sensitive adhesive sheet, when being bonded display device with input unit, Also transparent double-faced pressure-sensitive adhesive sheet (for example, patent document 1~3) is used.
In such a display device or input unit, adhesion is not required nothing more than to adhesive sheet, also requires insulation characterisitic etc. Various functions.For example, in patent document 4, the adhesive sheet for having the different cascade type of dielectric constant is disclosed.Also, in patent document 5 In, disclose the adhesive sheet for having the single-layer type with specific dielectric constant or Dielectric loss tangent.It is proposed viscous thus by control The dielectric constant of piece and improve performance of touch-screen etc..
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2003-238915 publications
Patent document 2：Japanese Patent Laid-Open 2003-342542 publications
Patent document 3：Japanese Patent Laid-Open 2004-231723 publications
Patent document 4：No. 4093355 publications of Japan Patent
Patent document 5：No. 2010/147047 specification of International Publication
The content of the invention
The invention problem to be solved
As described above, it is desirable to according to the performance required by display device or input unit, by the dielectric constant of adhesive sheet Control as particular range.However, relative dielectric constant is the intrinsic physics value of material, so precision is advantageously controlled and not allowed Easily, it is desirable to the method for finding more accurately to control relative dielectric constant.
Therefore, the present inventor is in order to solve the problem of such a prior art, to find more accurately to control relative dielectric normal Several methods, and provide and a kind of promote and grind for the purpose of adhesive sheet that relative dielectric constant is controlled using the control method Study carefully.
Solves the technological means of problem
The present inventor carries out effort research to solve above-mentioned problem, as a result finds：At least there is the 1st adhering agent layer With in the stacking adhesive sheet of the 2nd adhering agent layer, by the relative dielectric constant of the 1st adhering agent layer and thickness, with the 2nd adhering agent layer Relative dielectric constant and thickness are adjusted in a manner of as specified conditions, thus can adjust the relative dielectric of stacking adhesive sheet Constant.In this manner, the present inventor successfully obtains the stacking adhesive sheet that relative dielectric constant is controlled, so as to complete The present invention.
Specifically, the present invention has following composition.
[1] a kind of stacking adhesive sheet, it is at least to have the 1st adhering agent layer and the 2nd adhering agent layer, and above-mentioned 1st adhesion The poor absolute value of oxidant layer and the relative dielectric constant under the frequency 1MHz of above-mentioned 2nd adhering agent layer is more than 0.5.
[2] the stacking adhesive sheet according to [1], it is at least to have the 1st adhering agent layer and the 2nd adhering agent layer, and is had Have relative dielectric constant under frequency 1MHz not the 1st adhering agent layer up to 4, with the relative dielectric constant under frequency 1MHz for 4 with On the 2nd adhering agent layer.
[3] according to the stacking adhesive sheet described in [1] or [2], the relative dielectric under the frequency 1MHz of above-mentioned 1st adhering agent layer Constant is not up to 3.
[4] the stacking adhesive sheet according to any one of [1] to [3], above-mentioned 1st adhering agent layer and the above-mentioned 2nd adhesion The thickness of each layer of oxidant layer is more than 10 μm.
[5] the stacking adhesive sheet according to any one of [1] to [4], above-mentioned 1st adhering agent layer and the above-mentioned 2nd adhesion The ratio of the thickness of oxidant layer is 1：99~99：1.
[6] the stacking adhesive sheet according to any one of [1] to [5], above-mentioned 1st adhering agent layer and the above-mentioned 2nd adhesion Oxidant layer is acrylic acid series adhering agent layer.
[7] the stacking adhesive sheet according to any one of [1] to [6], above-mentioned 1st adhering agent layer and the above-mentioned 2nd adhesion Oxidant layer includes (methyl) acrylate.
[8] according to the stacking adhesive sheet any one of [1] to [7], itself so that there is the 3rd adhering agent layer.
[9] according to the stacking adhesive sheet any one of [1] to [8], itself so that there is resin bed.
[10] the stacking adhesive sheet according to [9], above-mentioned resin bed are arranged at above-mentioned 1st adhering agent layer and the above-mentioned 2nd Between adhering agent layer.
[11] the stacking adhesive sheet according to [9], is laminated with above-mentioned 1st adhering agent layer on above-mentioned resin bed, via Above-mentioned 1st adhering agent layer and be laminated with above-mentioned 2nd adhering agent layer in the opposing side with above-mentioned resin bed.
[12] according to the stacking adhesive sheet any one of [9] to [11], the phase under the frequency 1MHz of above-mentioned resin bed It is 2~10 to dielectric constant.
[13] a kind of layered product, it is to fit in the stacking adhesive sheet according to any one of [1] to [12] at least One optical component and formed.
[14] according to the layered product described in [13], at least one in above-mentioned optical component is ITO (Indium Tin Oxides, tin indium oxide) glass or ito film.
[15] a kind of relative dielectric constant method of adjustment, it at least has the stacking adhesive sheet of two layers of adhering agent layer for adjustment Relative dielectric constant method, and above-mentioned stacking adhesive sheet has relative dielectric constant under frequency 1MHz the 1st viscous not up to 4 The 2nd adhering agent layer that the relative dielectric constant under oxidant layer and frequency 1MHz is more than 4, by adjusting the 1st adhering agent layer respectively Frequency 1MHz under relative dielectric constant and thickness, with the relative dielectric constant and thickness under the frequency 1MHz of the 2nd adhering agent layer Degree, and adjust the relative dielectric constant of above-mentioned stacking adhesive sheet.
[16] according to the relative dielectric constant method of adjustment described in [15], under the frequency 1MHz of above-mentioned 1st adhering agent layer Relative dielectric constant and thickness, with the relative dielectric constant under the frequency 1MHz of above-mentioned 2nd adhering agent layer and thickness it is under use Formula (1) is stated to be adjusted,
[number 1]
(in formula (1), ε represents the overall relative dielectric constant of stacking adhesive sheet, and d represents the overall thickness of stacking adhesive sheet； Also, εnRepresent the relative dielectric constant of each adhering agent layer, dnRepresent the thickness of each adhering agent layer；Furthermore n represents adhering agent layer The number of plies).
[17] the relative dielectric constant method of adjustment according to [16], in above-mentioned formula (1), in ε1~εnTo be fixed Under the conditions of, determine d in a manner of as specific ε1~dn。
[18] the relative dielectric constant method of adjustment according to [16], in above-mentioned formula (1), in εnWith dnTo be fixed Under the conditions of, determine ε in a manner of as specific ε1~εn-1With d1~dn-1。
[19] the relative dielectric constant method of adjustment according to any one of [16] to [18], in above-mentioned formula (1), n For 2.
[20] a kind of manufacture method for being laminated adhesive sheet, it at least has the stacking adhesive sheet of two layers of adhering agent layer for manufacture Method, and adjust stacking adhesive sheet using according to the relative dielectric constant method of adjustment any one of [16] to [19] Relative dielectric constant.
The effect of invention
According to the present invention, it is possible to provide a kind of method of the relative dielectric constant in more accurately control stacking adhesive sheet.Cause This, in the present invention, can obtain the stacking adhesive sheet with required relative dielectric constant.Also, in the present invention, can be exactly Relative dielectric constant in control stacking adhesive sheet, so the production efficiency of stacking adhesive sheet can be improved, and can meet manufacturing Required detailed demand during layered product.
Brief description of the drawings
Fig. 1 (a)~Fig. 1 (d) is the summary section of the stacking adhesive sheet of the present invention.
Fig. 2 (a)~Fig. 2 (b) is the summary section for another aspect for representing the stacking adhesive sheet of the present invention.
The explanation of symbol
1 the 1st adhering agent layer
2 the 2nd adhering agent layers
3 the 3rd adhering agent layers
5 resin beds
10 stacking adhesive sheets
Embodiment
Hereinafter, the present invention is described in detail.The explanation for the constitutive requirements recorded below is to be based on representational reality Apply form or concrete example and complete, but the present invention is not limited to such a embodiment.Furthermore in this manual, with "~" The number range of expression is intended to be included in "~" front and rear numerical value recorded as lower limit and the scope of higher limit.
(stacking adhesive sheet)
The present invention relates to a kind of stacking adhesive sheet at least with the 1st adhering agent layer and the 2nd adhering agent layer.The present invention's It is laminated in adhesive sheet, the poor absolute value of the 1st adhering agent layer and the relative dielectric constant under the frequency 1MHz of the 2nd adhering agent layer is More than 0.5.Also, the relative dielectric constant under the preferably frequency 1MHz of the 1st adhering agent layer of the stacking adhesive sheet of the present invention is not It is more than 4 up to the relative dielectric constant under the frequency 1MHz of 4, the 2nd adhering agent layers.Furthermore stacking adhesive sheet of the invention can be made At least to have the double-faced pressure-sensitive adhesive sheet of the 1st adhering agent layer and the 2nd adhering agent layer to play function.
Fig. 1 (a)~Fig. 1 (d) is the summary section of the stacking adhesive sheet 10 of the present invention.Such as Fig. 1 (a)~Fig. 1 (c) institutes Show, stacking adhesive sheet 10 has the 1st adhering agent layer 1 and the 2nd adhering agent layer 2.In Fig. 1 (a)~Fig. 1 (c), adhesive sheet 10 is laminated The 1st adhering agent layer 1 and the 2nd adhering agent layer 2 are only included, but can also have other functional layers or adhering agent layer.For example, such as Fig. 1 (d) Shown, stacking adhesive sheet 10 of the invention can also have the 3rd to glue in addition to the 1st adhering agent layer 1 and the 2nd adhering agent layer 2 Oxidant layer 3.Furthermore when being laminated situation of the adhesive sheet 10 with other functional layers in addition to adhering agent layer, the 1st adhering agent layer 1st, at least any layer in the 2nd adhering agent layer 2 and the 3rd adhering agent layer 3 is configured at outermost layer.
In the stacking adhesive sheet of the present invention, the 1st adhering agent layer and the relative dielectric constant of the 2nd adhering agent layer it is poor exhausted It is more than 0.5 to value.The poor absolute value of the relative dielectric constant of 1st adhering agent layer and the 2nd adhering agent layer is preferably more than 1, More preferably more than 2.Can be by the way that the relative dielectric constant difference of the 1st adhering agent layer and the 2nd adhering agent layer be set into as described above Scope, and easily carry out being laminated the adjustment of the relative dielectric constant of adhesive sheet, further precision adjusts stacking adhesion well The relative dielectric constant of piece.
In the present invention, the relative dielectric constant under the frequency 1MHz of the 1st adhering agent layer is preferably not up to 4, is more preferably Not up to 3, and then it is preferably not up to 2.5, more and then is preferably not up to 2.Can be by by the phase under the frequency 1MHz of the 1st adhering agent layer Dielectric constant is set in above range, and further expeditiously control is laminated the overall relative dielectric constant of adhesive sheet.Also, Also will can be laminated the overall relative dielectric constant of adhesive sheet be suppressed to it is relatively low.
Relative dielectric constant under the frequency 1MHz of 2nd adhering agent layer is preferably more than 4, and more preferably more than 4.5, and then Preferably more than 5, more and then preferably more than 5.5.Can be by so by the relative dielectric under the frequency 1MHz of the 1st adhering agent layer Relative dielectric constant under the frequency 1MHz of constant and the 2nd adhering agent layer is set as particular range, and controls stacking adhesive sheet whole The relative dielectric constant of body.
Furthermore the relative dielectric constant (ε) in the present invention is obtained using method specified in JIS-C-2138.
The ratio of the thickness of 1st adhering agent layer and the 2nd adhering agent layer is preferably 1：99~99：1.Can be by so adjusting the 1st The thickness of adhering agent layer and the 2nd adhering agent layer, and control the overall relative dielectric constant of stacking adhesive sheet.
, can be by with the specific adhering agent layer of condition setting the 1st and the 2nd sticker in the stacking adhesive sheet of the present invention Layer, and control the overall relative dielectric constant of stacking adhesive sheet.Specifically, can be by adjusting the phase of the 1st adhering agent layer respectively To dielectric constant and thickness, relative dielectric constant and thickness with the 2nd adhering agent layer, and control the relative dielectric of stacking adhesive sheet Constant.
In the present invention, the relative dielectric constant of the 1st adhering agent layer and thickness, normal with the relative dielectric of the 2nd adhering agent layer Following formula (1) can be used to be adjusted for number and thickness.
[number 2]
Herein, in formula (1), the overall relative dielectric constant of ε expression stacking adhesive sheets, d represents stacking adhesive sheet entirety Thickness.Also, εiRepresent the relative dielectric constant of each adhering agent layer, diRepresent the thickness of each adhering agent layer.Furthermore n represents sticker The number of plies of layer.
In the present invention, when forming the stacking adhesive sheet with certain specific relative dielectric constant, above-mentioned formula can be used (1) relative dielectric constant and thickness, relative dielectric constant and thickness with the 2nd adhering agent layer of the 1st adhering agent layer are calculated. That is, if being determined to the relative dielectric constant of stacking adhesive sheet requirement, and the thickness of stacking adhesive sheet obtained is determined, then can calculated The relative dielectric constant and thickness of 1st adhering agent layer and the 2nd adhering agent layer.
In the present invention, specifically, dielectric constant is preferably adjusted under the conditions described below.For example, above-mentioned , can be in ε in formula (1)1~εiUnder conditions of fixation, in a manner of as specific ε, d is determined1~di.Also, in above-mentioned formula (1) In, can be in εiWith diUnder conditions of fixation, ε is determined1~εi-1With d1~di-1。
Imposed a condition by so coordinating the aspect of stacking adhesive sheet, and above-mentioned formula (1) can be used, selection, which has, to be met By the sticker of the adhesion physical property of then body, and form the stacking adhesive sheet with required relative dielectric constant.
Furthermore in the present invention, in above-mentioned formula (1), n is preferably 2~6, more preferably 2~4, and then preferably 2 or 3.By using above-mentioned formula (1), and it can easily adjust relative Jie of the stacking adhesive sheet with more than two layers of adhering agent layer Electric constant.
The stacking adhesive sheet of the present invention can also have the 3rd adhering agent layer.There are the feelings of the 3rd adhering agent layer in stacking adhesive sheet During shape, the 3rd adhering agent layer can be with the 1st adhering agent layer or the 2nd adhering agent layer identical relative dielectric constant with not abutting Adhering agent layer, or with adhesion with adjacent the 1st adhering agent layer or the 2nd adhering agent layer identical relative dielectric constant Oxidant layer.That is, the 3rd adhering agent layer can have with adjacent adhering agent layer identical relative dielectric constant, can also have different phases To dielectric constant.Also, when being sequentially laminated the situation of the 1st adhering agent layer, the 2nd adhering agent layer and the 3rd adhering agent layer, the 1st adhesion Oxidant layer also can be identical with the relative dielectric constant of the 3rd adhering agent layer.
Also, the 3rd adhering agent layer, which is alternatively, has the phase different from any layer of the 1st adhering agent layer and the 2nd adhering agent layer To the adhering agent layer of dielectric constant.When being laminated situation of the adhesive sheet with the 3rd adhering agent layer, relative Jie of the 3rd adhering agent layer Electric constant, with the poor absolute value of the relative dielectric constant of adjacent the 1st adhering agent layer or the 2nd adhering agent layer be preferably 0.5 with On, more preferably more than 1, and then preferably more than 2.And then the difference of the relative dielectric constant between preferably all adhering agent layers Absolute value be in above range.That is, the relative dielectric constant of preferably the 1st adhering agent layer is relative with the 2nd adhering agent layer The poor absolute value of dielectric constant is the relative dielectric constant and the 3rd sticker of more preferably the 2nd adhering agent layer in above range The poor absolute value of the relative dielectric constant of layer is in above range, and then preferably the 1st adhering agent layer and the 3rd adhering agent layer The poor absolute value of relative dielectric constant is in above range.
, also can be in ε in above-mentioned formula (1) when being laminated the situation for the adhering agent layer that adhesive sheet has the above that haves three layers1With εi、 d1With diUnder conditions of fixation, ε is determined2~εi-1With d2~di-1.In the situation, stacking adhesion can be present in by adjustment The relative dielectric constant and thickness of the adhering agent layer of the inner side of piece, and form the stacking with required relative dielectric constant and adhere Piece.
That is, in the situation for the stacking adhesive sheet that n is more than 3, can preset as then in by the adhesion of then body Having for oxidant layer (hereinafter referred to as outermost adhering agent layer) meet by the sticker and thickness of the appropriate adhesion physical property of then body, And can be by using above-mentioned (1) formula, and obtain the outermost adhesion that the overall dielectric constant of adhesive sheet is set to required will be laminated The thickness of layer beyond oxidant layer.Thus, can obtain can reach the stacking adhesive sheet of required adhesion physical property and dielectric constant simultaneously.
The present invention stacking adhesive sheet the 1st adhering agent layer and the 2nd adhering agent layer each layer thickness be preferably 10 μm with On.More than above-mentioned lower limit, then can precision adjust the overall relative dielectric constant of stacking adhesive sheet well.Stacking adhesion The overall thickness of piece is preferably 20 μm~1000 μm, and the thickness of especially outermost adhering agent layer is preferably 10 μm~100 μm, more excellent Elect 25 μm~50 μm as.By the way that the thickness of outermost adhering agent layer is adjusted within the above range, and become to have and meet quilt Then the stacking adhesive sheet of the adhesion physical property of body.Also, when the stacking adhesive sheet of the present invention has the situation of the 3rd adhering agent layer, The thickness of 3rd adhering agent layer is preferably also in above range.
In this way, at least there is the side of the relative dielectric constant of the stacking adhesive sheet of two layers of adhering agent layer the present invention relates to adjustment Method, and to use the relative dielectric constant method of adjustment of above-mentioned formula (1).It can be adjusted by using the relative dielectric constant of the present invention Method, and it is readily formed the stacking adhesive sheet with various relative dielectric constants.Thus, can precision to be advantageously controlled stacking viscous The overall relative dielectric constant of piece.
And then the present invention also relates to the manufacture method of the stacking adhesive sheet at least with two layers of adhering agent layer, and be to include The step of relative dielectric constant of stacking adhesive sheet is adjusted using the relative dielectric constant method of adjustment using above-mentioned formula (1) It is laminated the manufacture method of adhesive sheet.Also can be by using such a manufacture method, and improve the production efficiency of stacking adhesive sheet.
(sticker)
As the adhesion host for forming the 1st adhering agent layer and the 2nd adhering agent layer, in order to do not reduce display device etc. depending on recognizing Property, it is preferable to use there is the transparency.Such as acrylic acid series sticker, silicone-based sticker, Polyester sticker, rubber can be used Sticker known to glue system sticker, polyurethanes system sticker etc..Wherein, it is preferable to use acrylic acid series sticker, Acrylic acid series sticker more preferably containing polymer based on acrylic acid series polymeric compounds.
＜ acrylic acid series polymeric compounds ＞
Acrylic acid series polymeric compounds contain non-crosslinked property (methyl) acrylic ester unit and with bridging property functional group third Olefin(e) acid system monomeric unit.Herein, " monomeric unit " is the repeat unit for forming polymer." acrylic monomer " is with (first Base) acryloyl group compound." (methyl) acryloyl group " represents acryloyl group or methylacryloyl.Also, non-crosslinked property third Olefin(e) acid system monomer is the acrylic monomer without bridging property base, and cross-linkable monomer is the monomer with bridging property base.Crosslinking As long as property monomer can to polymerize with non-crosslinked property acrylic monomer, can be then acrylic monomer, or non-acrylic acid series Monomer, preferably acrylic monomer.Furthermore as bridging property base, it can enumerate：Carboxyl, hydroxyl, amino, epoxy radicals, shrink are sweet Oil base etc..
As non-crosslinked property acrylic monomer unit, such as can enumerate：Make the hydrogen atom of the carboxyl of (methyl) acrylic acid (methyl) acrylic ester unit substituted by alkyl.In the present invention, each adhering agent layer is preferably to contain (methyl) acrylic acid Ester units.
The carbon number of alkyl in (methyl) acrylic ester unit is preferably 1~18, and more preferably 1~8.Furthermore alkyl There can be substituent, as substituent, as long as without bridging property base, to be then not particularly limited, such as can enumerate：Methoxyl group, The alkoxies such as ethyoxyl.
As (methyl) acrylate, specifically, can enumerate：(methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) propyl acrylate, (methyl) isopropyl acrylate, (methyl) n-butyl acrylate, (methyl) isobutyl acrylate, (first Base) tert-butyl acrylate, (methyl) acrylic acid n-pentyl ester, (methyl) the just own ester of acrylic acid, (methyl) 2-EHA, (methyl) n-octyl, (methyl) Isooctyl acrylate monomer, the positive nonyl ester of (methyl) acrylic acid, (methyl) isobomyl acrylate Ester, the different nonyl ester of (methyl) acrylic acid, the positive last of the ten Heavenly stems ester of (methyl) acrylic acid, (methyl) isodecyl acrylate, (methyl) acrylic acid positive ten One Arrcostab, (methyl) acrylic acid n-dodecane base ester, (methyl) stearyl acrylate ester, (methyl) methoxyethyl acrylate, (methyl) ethoxyethyl acrylate, (methyl) cyclohexyl acrylate, (methyl) benzyl acrylate.Wherein, with regard to the side of adherence For face, it is preferable to use n-butyl acrylate, 2-EHA, methyl acrylate.These one kind that can be used alone, Or and with two or more.Furthermore in the present invention, so-called " (methyl) acrylic acid ", it is intended that include " acrylic acid " and " metering system Both acid ".
As cross-linking monomer units, can enumerate：The co-polymerized monomer list of carboxylic co-polymerized monomer unit, hydroxyl Member, the co-polymerized monomer unit containing amino, the co-polymerized monomer unit containing glycidyl.As carboxylic copolymerizable list Body, such as can enumerate：Acrylic acid, methacrylic acid, butenoic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, penta The alpha, beta-unsaturated carboxylic acids such as enedioic acid or its acid anhydrides etc..
As the co-polymerized monomer of hydroxyl, such as can enumerate：(methyl) acrylic acid 2- hydroxy methacrylates, (methyl) acrylic acid (methyl) hydroxyalkyl acrylates such as 4- hydroxybutyls, (methyl) acrylic acid 2- hydroxy propyl esters, (methyl) acrylic acid list (diethyl Glycol) etc. (methyl) acrylic acid such as (methyl) acrylic acid [(mono-, di- or poly-) aklylene glycol], (methyl) acrylic acid list caprolactone Lactone.
As the co-polymerized monomer containing amino, such as can enumerate：(methyl) acrylamide, allyl acid amides etc..
As the co-polymerized monomer containing glycidyl, such as can enumerate：(methyl) glycidyl acrylate etc..
Among these, with regard to adherence, bridging property and polymerism and then it is used for the tin-doped indium oxide of nesa coating or is used for For the less aspect of the corrosivity such as the copper of electromagnetic shielding, the preferably co-polymerized monomer of hydroxyl, more preferably (methyl) hydroxyalkyl acrylates, especially preferably (methyl) acrylic acid 2- hydroxy methacrylates, (methyl) acrylic acid 4- hydroxyl fourths Ester.
Furthermore when containing situation of the carboxylic co-polymerized monomer unit as cross-linking monomer units, acidity becomes strong, So if contact tin-doped indium oxide film or metal film etc. have corrosive film, there is the situation for corroding these films.Therefore, it is just anti- For corrosive aspect, when containing situation of the carboxylic co-polymerized monomer unit as cross-linking monomer units, it contains It is preferably not up to 0.5 mass % to have rate, has more preferably been entirely free of.Also, it is overall as stacking adhesive sheet, with regard to anticorrosive property For aspect, the containing ratio of the carboxylic co-polymerized monomer unit preferably in the acrylic acid series polymeric compounds is not up to 1.0 matter Measure %.
Also, acrylic acid series polymeric compounds can also have unless crosslinkable acrylic system monomeric unit and cross-linking monomer units with Outer other monomers unit.As other monomers, can enumerate：(methyl) acrylonitrile, vinyl acetate, styrene, vinyl chloride, second Vinyl pyrrolidone, vinylpyridine etc..
The containing ratio of other monomers unit in acrylic acid series polymeric compounds is preferably the mass of 0.1 mass %~20 %, more excellent Elect the mass % of 0.5 mass %~10 as.If the containing ratio of other monomers unit is more than above-mentioned lower limit, can be easily adjusted Physical property, below above-mentioned higher limit, then it can prevent xanthochromia caused by deterioration etc..
The relative dielectric constant of each adhering agent layer can be by suitably selecting the species of the resin for sticker to be set to The value needed.For example, when improving the situation of relative dielectric constant, it is preferable to use relatively high (methyl) the acrylate list of polarity Member, for example, (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) propyl acrylate, (methyl) isopropyl acrylate, (methyl) n-butyl acrylate, (methyl) isobutyl acrylate, (methyl) tert-butyl acrylate etc..Wherein, the just transparency or the It is preferably (methyl) methyl acrylate, (methyl) acrylic acid for the viewpoint of the adhesion of 1 adhering agent layer and the 2nd adhering agent layer N-butyl.
Also, as cross-linking monomer units, as long as similarly using the relatively high carboxylic co-polymerized monomer list of polarity Member, the co-polymerized monomer unit of hydroxyl, the co-polymerized monomer unit containing amino, as carboxylic co-polymerized monomer, Such as it can enumerate：Acrylic acid, methacrylic acid, butenoic acid, maleic acid, fumaric acid, itaconic acid, citraconic acid, amylene The α such as diacid, beta-unsaturated carboxylic acid or its acid anhydrides, as the co-polymerized monomer of hydroxyl, such as it can enumerate：(methyl) acrylic acid 2- (methyl) the dihydroxypropyl alkyl such as hydroxy methacrylate, (methyl) acrylic acid 4- hydroxybutyls, (methyl) acrylic acid 2- hydroxy propyl esters (methyl) acrylic acid such as ester, (methyl) acrylic acid list (diethylene glycol) [(mono-, di- is poly-) aklylene glycol], (methyl) acrylic acid Single caprolactone etc. (methyl) acryliclactones, as the co-polymerized monomer containing amino, such as can be enumerated：(methyl) acrylamide, Allyl acid amides etc..Wherein, for the viewpoint of the easiness of the control of relative dielectric constant, polar group is shared in molecule entirety Ratio increase, so be preferably (methyl) acrylic acid 2- hydroxy methacrylates, (methyl) acrylic acid 4- hydroxybutyls.
On the other hand, when reducing the situation of relative dielectric constant of adhering agent layer, as long as relatively low using polarity.Example It can such as enumerate：(methyl) 2-EHA, (methyl) n-octyl, (methyl) Isooctyl acrylate monomer, (methyl) The positive nonyl ester of acrylic acid, the different nonyl ester of (methyl) acrylic acid, the positive last of the ten Heavenly stems ester of (methyl) acrylic acid, (methyl) isodecyl acrylate, (methyl) Acrylic acid n-undecane base ester, (methyl) acrylic acid n-dodecane base ester, (methyl) stearyl acrylate ester, (methyl) acrylic acid ring The ester ring type compounds such as own ester, (methyl) benzyl acrylate, cyclohexyl acrylate or isobornyl acrylate, wherein, it is just transparent For the viewpoint of property or the adhesion of adhering agent layer, also, making relative dielectric constant not up to for 4 aspect with regard to may achieve, preferably For (methyl) 2-EHA, (methyl) isobornyl acrylate.
＜ crosslinking agents ＞
Also crosslinking agent can be used in each adhering agent layer.As crosslinking agent, such as can enumerate：Isocyanate compound, ring Oxygen compound, oxazoline compounds, aziridine cpd, meal chelate compounds, butylated melamines compound etc..This Among a little crosslinking agents, so that it may easily for the aspect of cross-linked acrylic acid based polymer, preferably isocyanate compound, epoxy Compound.Especially only contain the co-polymerized monomer unit of hydroxyl as cross-linking monomer units in acrylic acid series polymeric compounds During situation, for the reactive aspect of hydroxyl, it is preferable to use isocyanate compound.
As isocyanate compound, such as can enumerate：Toluene di-isocyanate(TDI), xylylene diisocyanate, six Asias Methyl diisocyanate, IPDI etc..As epoxide, such as can enumerate：Ethylene glycol two shrinks sweet Oily ether, polyethyleneglycol diglycidylether, propylene glycol diglycidylether, polypropylene glycol diglycidyl ether, glycerine two shrink Glycerin ether, neopentylglycol diglycidyl ether, 1,6 hexanediol diglycidylether, four glycidyl group benzene dimethylamine, 1,3- Double (N, N- diglycidyl amino methyl) hexamethylenes, trimethylolpropane polyglycidyl ether, two glycerine poly epihydric alcohols Ether, polyglycereol polyglycidyl ether, d-sorbite polyglycidyl ether etc..The content of crosslinking agent is preferably according to required adhesion Physical property and suitably select.
[additive]
Also, also can be in each adhering agent layer, optionally containing antioxidant, resist metal corrosion agent, adhesion imparting agent, silane Other additives such as light stabilizer, the filler such as coupling agent, ultra-violet absorber, the amine compound that is obstructed.
As antioxidant, can enumerate：Phenol antioxidant, amine system antioxidant, lactone system antioxidant, phosphorus system antioxygen Agent, sulphur system antioxidant etc..These antioxidants can be used alone one kind, also can and with two or more.
As resist metal corrosion agent, with regard to sticker compatibility or effect height aspect for, preferably benzo three Azoles system resin.
As adhesion imparting agent, such as can enumerate：Rosin series resin, terpenic series resin, terpene phenol resin, smoked careless click-indenes It is resin, phenylethylene resin series, diformazan benzene series resin, phenol resin, Petropols etc..
As silane coupling agent, such as can enumerate：Mercaptoalkoxysilane compound is (for example, the alcoxyl substituted through sulfydryl Base oligomer etc.) etc..
As ultra-violet absorber, such as can enumerate：BTA based compound, benzophenone based compound etc..
(resin bed)
The present invention stacking adhesive sheet in addition to above-mentioned 1st adhering agent layer, the 2nd adhering agent layer and the 3rd adhering agent layer, Also can and then there is resin bed.Resin bed can be adhering agent layer, or the resin bed of Abherent.Also, can be individual layer, also may be used For plural layer.In situation of the resin bed for the resin bed of Abherent, as used resin, preferably to optics physical property Do not have an impact, such as can enumerate：Makrolon, PET, polymethyl methacrylate, poly- naphthalenedicarboxylic acid Second diester, cyclic olefin polymer, triacetyl cellulose, polyimides, acylated cellulose etc..
Resin bed be adhering agent layer situation when adhesion host be used for each adhering agent layer adhesion host again it is preferred to For the transparency of the degree with the visibility for not reducing display device.Such as it can be used：Acrylic acid series sticker, silicone-based are glued Sticker known to agent, Polyester sticker, rubber series sticker, polyurethanes system sticker etc., it is especially just durable For the viewpoint of property, preferably contain by 1~18 (methyl) alkyl acrylate of the carbon number of alkyl and be used as main monomer composition Acrylic acid series polymeric compounds based on polymer acrylic acid series sticker.
In Fig. 2 (a)~Fig. 2 (b), the summary section of another aspect of the stacking adhesive sheet 10 of the present invention is represented.Such as Shown in Fig. 2 (a)~Fig. 2 (b), stacking adhesive sheet 10 of the invention has the 1st adhering agent layer 1, the 2nd adhering agent layer 2 and resin bed 5.In the present invention, resin bed 5 can be also arranged between the 1st adhering agent layer 1 and the 2nd adhering agent layer 2 as shown in Fig. 2 (a). In the situation, adhering agent layer is set on two sides via resin bed 5, so stacking adhesive sheet can be sent out as double-faced pressure-sensitive adhesive sheet Wave function.
Also, also can as shown in Fig. 2 (b), on resin bed 5 be laminated the 1st adhering agent layer 1, via the 1st adhering agent layer 1 Side opposite with resin bed 5 sets the 2nd adhering agent layer 2.In the situation, the 2nd adhering agent layer 2 and optical component etc. are by then thing Carry out then, so the 2nd adhering agent layer 2 be preferably contain with by the excellent resin of the adherence of then thing.
Relative dielectric constant under the frequency 1MHz of resin bed is preferably 2~10.Can be by by the frequency 1MHz of resin bed Under relative dielectric constant be set to such a scope, and easily carry out be laminated adhesive sheet relative dielectric constant adjustment, enter one Precision is walked well to stacking adhesive sheet adjustment relative dielectric constant.Furthermore for the relative dielectric constant of resin bed, it is also preferred that To be adjusted by the species for the resin for suitably selecting to use.
The thickness of resin bed is preferably 10 μm~500 μm, more preferably 25 μm~250 μm.If the thickness of resin bed is upper State more than lower limit, then the overall relative dielectric constant of stacking adhesive sheet is easily controlled, if the thickness of resin bed is the above-mentioned upper limit Value is following, then can easily manufacture stacking adhesive sheet.
(the stacking adhesive sheet of attached releasing sheet)
The stacking adhesive sheet of the present invention for example can be by applying the 1st adhesion agent composition and the 2nd adhesion on releasing sheet Agent composition and form film, and heat the film and hardening thing be made and obtains.As releasing sheet, can enumerate：With stripping From piece timber-used base material with being arranged at the releasing sheet by the use of the fissility laminated sheet of the peeling agent layer of the one side of base material or as low The polyolefin films such as the polyethylene film or polypropylene screen of polar substrates.
As the releasing sheet base material in fissility laminated sheet, stationery, polymeric membrane can be used.Peeled off as forming The remover of oxidant layer, such as the silicone series stripping agent of general add-on type or condensed type or the chemical combination containing chain alkyl can be used Thing.
As silicone series stripping agent, specifically, can enumerate：Beautiful DOW CORNING silicone (the Dow Corning Toray in east Silicone) BY24-4527, SD-7220 of company's manufacture etc., or KS-3600, KS- of SHIN-ETSU HANTOTAI's chemical industry (stock) manufacture 774th, X62-2600 etc..Also, it is preferably to contain there is SiO in silicone series stripping agent2Unit and (CH3)3SiO1/2Unit or CH2 =CH (CH3)SiO1/2The silicone resin of the organo-silicon compound of unit.As the concrete example of silicone resin, can enumerate：Dong Lidao BY24-843, SD-7292, SHR-1404 of healthy and free from worry silicone (Dow Corning Toray Silicone) company manufacture etc., or KS-3800, X92-183 of SHIN-ETSU HANTOTAI's chemical industry (stock) manufacture etc..
In order to which releasing sheet is easily peeled off, preferably make the 1st adhering agent layer side releasing sheet and the 2nd adhering agent layer side The respective fissility of releasing sheet is different.That is, if the fissility from one layer is different from the fissility from another layer, easily first only The higher releasing sheet of fissility is peeled off.In the situation, as long as adjusting the 1st sticker according to applying method or coating squence The fissility of layer side releasing sheet and the 2nd adhering agent layer side releasing sheet.
The coating for forming the adhesion agent composition of each adhering agent layer can be used known applying device and implement.Sticker group Compound is coatable in each adhering agent layer, also can be simultaneously multilayer coated by adhesion agent composition, is consequently formed more than two layers viscous Oxidant layer.As applying device, such as can enumerate：It is knife type coater, Kohler coater, roll coater, rod coater, recessed Version coating machine, micro- gravure coater, rod-type knife type coater, die lip coating machine, die coater, curtain application device etc.. Solvent is included in coating liquid.As solvent, such as methanol, ethanol, isopropanol, acetone, methyl ethyl ketone, toluene, just can be used Hexane, n-butanol, methyl iso-butyl ketone (MIBK), methyl butyl ketone, ethyl butyl ketone, cyclohexanone, ethyl acetate, butyl acetate, the third two Alcohol methyl ether acetate, ethylene glycol monoethyl ether, propylene glycol monomethyl ether, METHYLPYRROLIDONE etc..These can be used alone one Kind, it can also mix two or more and use.
The heating of film can be used heater known to heating furnace, infrared lamp etc. and implement.
For resin bed, it is possible to use above-mentioned applying device and formed.Furthermore in the resin bed that resin bed is Abherent Situation when, be molded, be not particularly limited, preferably twin shaft extension method, extrusion by melting etc. using known method.
(layered product)
In the present invention, can be by the way that stacking adhesive sheet be fitted in at least one optical component to make layered product.In layer When folded adhesive sheet is the situation of double-faced pressure-sensitive adhesive sheet, a pair of optical components can be bonded on the two sides of stacking adhesive sheet.
The so-called optical component for forming layered product, refers to each composition in the optical goods such as touch-screen or image display device Component.As the member of formation of touch-screen, such as can enumerate：The ito film of ito film is provided with transparent resin film, in glass plate Surface be provided with the ito glass of ito film, be coated with the transparent and electrically conductive film of electric conductive polymer in transparent resin film, hard apply Film, anti-finger printing film etc..As the member of formation of image display device, such as can enumerate：Anti-reflective for liquid crystal display device Penetrate film, alignment films, light polarizing film, phase retardation film, brightness enhancement film etc..As the material for these components, can enumerate：Glass, poly- carbon Acid esters, PET, polymethyl methacrylate, PEN, cyclic olefin polymer, triacetyl Cellulose, polyimides, acylated cellulose etc..
Also, a pair of optical components being bonded as the stacking adhesive sheet using the present invention, can be enumerated：The inside of touch-screen The mutual fitting of ito film, being bonded of ito film and ito glass, being bonded of the ito film of touch-screen and liquid crystal panel, cover glass with The fitting of ito film, cover glass are bonded with decorating film.
Embodiment
Hereinafter, embodiment is enumerated with comparative example and then specifically describes the feature of the present invention.Shown in following embodiment Material, usage amount, ratio, process content, processing sequence etc. without departing from the purport of the present invention, then can suitably change.Cause This, the scope of the present invention should not restrictively be explained by concrete example as shown below.
(making of contained adhesion agent composition (A) in the 1st adhering agent layer)
Using as the mass parts of 2-EHA 80 of non-crosslinked property acrylic ester unit, isobornyl acrylate 17 Mass parts, the mass parts of acrylic acid 4- hydroxybutyls 3 as the acrylic monomer unit with bridging property functional group utilize public affairs The solvent polymerization method known and carry out polymerisation, obtain acrylate copolymer solution.Will be with the acrylate copolymer solution Adhesion agent composition (A) is made in adhesion agent solution as adhesion host.
As releasing sheet, prepare at PET (polyethylene terephthalate, PET) Film possesses the stripping film [prince Ai Fusi (F-TEX) (stock) is manufactured, 38 μm of RL-07 (L)] of peeling agent layer, utilizes blade coating machine The solution of above-mentioned adhesion agent composition (A) is applied in the peeling agent layer of the releasing sheet, is heated 3 minutes at 100 DEG C, is formed thick The adhering agent layer of 100 μm of degree, using Dielectric Coefficient system (1260 types of Dongyang technology manufacture) and it is based on JIS-C-2138 And determine, detect relative dielectric constant, the as a result relative dielectric constant ε under frequency 1MHz1For 2.6.
(making of contained adhesion agent composition (B) in the 2nd adhering agent layer)
Using as the mass parts of methyl acrylate 40 of non-crosslinked property acrylic ester unit, the mass parts of butyl acrylate 40, work For solvent known to the mass parts of acrylic acid 2- hydroxy methacrylates 20 utilization of the acrylic monomer unit with bridging property functional group Polymerization and carry out polymerisation, obtain acrylate copolymer solution.Adhesion will be used as using the acrylate copolymer solution Adhesion agent composition (B) is made in the adhesion agent solution of host.
As releasing sheet, prepare stripping film [prince Ai Fusi (F-TEX) (stock) systems for possessing peeling agent layer in PET film Make, 38 μm of RL-07 (L)], apply above-mentioned adhesion agent composition (B) using peeling agent layer of the blade coating machine in the releasing sheet Solution, heated 3 minutes at 100 DEG C, form the adhering agent layer of 100 μm of thickness, determine relative dielectric constant, as a result frequency Relative dielectric constant ε under 1MHz2For 5.4.
(making of contained adhesion agent composition (C) in the 1st adhering agent layer)
By the mass parts of 2-EHA 80, the mass parts of isobornyl acrylate 17, the matter of acrylic acid 4- hydroxybutyls 3 Measure part known to usinging block polymerization and carry out polymerisation, acquisition acrylate copolymer.Will be relative to the acrylate 2-EHA 30 mass parts of the mass parts of copolymer 1 00 addition as reactive diluent, Isooctyl acrylate monomer 20 Adhesion agent composition (C) is made in the sticker slurries that mass parts, the mass parts of Photoepolymerizationinitiater initiater 0.5 and adjustment form.
As releasing sheet, prepare stripping film [prince Ai Fusi (F-TEX) (stock) systems for possessing peeling agent layer in PET film Make, 38 μm of RL-07 (L)], apply above-mentioned adhesion agent composition (C) using peeling agent layer of the blade coating machine in the releasing sheet Slurries, simultaneously in a nitrogen environment using UV (ultraviolet, ultraviolet) irradiating machine carry out cooling one side irradiation accumulation light Measure 1000mJ/cm2, the adhering agent layer of 100 μm of thickness of formation.The adhering agent layer is utilized into Dielectric Coefficient system (Dongyang skill 1260 types of art manufacture) and be based on JIS-C-2138 and determine, detect relative dielectric constant, it is as a result relative under frequency 1MHz Permittivity ε1For 2.4.
(making of contained adhesion agent composition (D) in the 2nd adhering agent layer)
Using as the mass parts of methyl acrylate 40 of non-crosslinked property acrylic ester unit, the mass parts of butyl acrylate 40, work For bulk known to the mass parts of acrylic acid 2- hydroxy methacrylates 20 utilization of the acrylic monomer unit with bridging property functional group Polymerization and carry out polymerisation, obtain acrylate copolymer.It will be added relative to the mass parts of acrylate copolymer 100 Sticker group is made in the sticker slurries that the mass parts of lauryl acrylate 50, the mass parts of Photoepolymerizationinitiater initiater 0.5 and adjustment form Compound (D).
As releasing sheet, prepare stripping film [prince Ai Fusi (F-TEX) (stock) systems for possessing peeling agent layer in PET film Make, 38 μm of RL-07 (L)], apply above-mentioned adhesion agent composition (D) using peeling agent layer of the blade coating machine in the releasing sheet Slurries, accumulated light 1000mJ/cm is irradiated when being cooled down in a nitrogen environment using UV irradiating machines2, formed thick The adhering agent layer of 100 μm of degree.The adhering agent layer is utilized into Dielectric Coefficient system (1260 types of Dongyang technology manufacture) and base Determine in JIS-C-2138, detect relative dielectric constant, as a result the relative dielectric constant ε under frequency 1MHz1For 5.8.
(embodiment 1) is laminated the making of adhesive sheet
In order that making the stacking adhesive sheet that relative dielectric constant is 3.5 of adhesion agent composition (A) and (B), use Formula (1) calculates the ratio of the thickness of the 1st adhering agent layer and the 2nd adhering agent layer.The ratio of the thickness calculated is " (the 1st adhering agent layer Thickness)：(thickness of the 2nd adhering agent layer)=1：1 ", so the 1st adhering agent layer and the 2nd adhesion are formed in the manner as described below Oxidant layer.
As the 1st releasing sheet, prepare stripping film [the prince Ai Fusi (F-TEX) (stock) for possessing peeling agent layer in PET film Manufacture, 38 μm of RL-07 (L)], apply above-mentioned sticker in the peeling agent layer of the 1st releasing sheet using blade coating machine and combine The solution of thing (A), heated 3 minutes at 100 DEG C, form the 1st adhering agent layer of 50 μm of thickness.
As the 2nd releasing sheet, prepare stripping film [the prince Ai Fusi (F-TEX) (stock) for possessing peeling agent layer in PET film Manufacture, 38 μm of RL-07 (L)], apply above-mentioned sticker in the peeling agent layer of the 2nd releasing sheet using blade coating machine and combine The solution of thing (B), heated 3 minutes at 100 DEG C, form the 2nd adhering agent layer of 50 μm of thickness.
Overlapping, crimping is carried out in a manner of above-mentioned 1st adhering agent layer is contacted with the 2nd adhering agent layer.In this manner, The stacking adhesive sheet for the attached releasing sheet that the thickness for obtaining adhering agent layer is 100 μm.
(embodiment 2)
In order that making the stacking adhesive sheet that relative dielectric constant is 4.3 of adhesion agent composition (A) and (B), use Formula (1) calculates the ratio of the thickness of the 1st adhering agent layer and the 2nd adhering agent layer.The ratio of the thickness calculated is " (the 1st adhering agent layer Thickness)：(thickness of the 2nd adhering agent layer)=1：3 ", so the thickness of the 1st adhering agent layer is set to 25 μm and the 2nd adhering agent layer Thickness be set to 75 μm, in addition, in the same manner as example 1, the thickness for obtaining adhering agent layer is 100 μm of attached stripping From the stacking adhesive sheet of sheet material.
(embodiment 3)
In order that making the stacking adhesive sheet that relative dielectric constant is 3.0 of adhesion agent composition (A) and (B), use Formula (1) calculates the ratio of the thickness of the 1st adhering agent layer and the 2nd adhering agent layer.The ratio of the thickness calculated is " (the 1st adhering agent layer Thickness)：(thickness of the 2nd adhering agent layer)=3：1 ", so the thickness of the 1st adhering agent layer is set to 75 μm and the 2nd adhering agent layer Thickness be set to 25 μm, in addition, in the same manner as example 1, the thickness for obtaining adhering agent layer is 100 μm of attached stripping From the stacking adhesive sheet of sheet material.
(embodiment 4) uses the making for being laminated adhesive sheet that UV hardening is adhesion agent composition
In order that making the stacking adhesive sheet that relative dielectric constant is 3.5 of adhesion agent composition (C) and (D), use Formula (1) calculates the ratio of the thickness of the 1st adhering agent layer and the 2nd adhering agent layer.The ratio of the thickness calculated is " (the 1st adhering agent layer Thickness)：(thickness of the 2nd adhering agent layer)=0.9：1.1 ", so in the manner as described below, form the 1st adhering agent layer and the 2nd Adhering agent layer.
As the 1st releasing sheet, prepare stripping film [the prince Ai Fusi (F-TEX) (stock) for possessing peeling agent layer in PET film Manufacture, 38 μm of RL-07 (L)], apply above-mentioned sticker in the peeling agent layer of the 1st releasing sheet using blade coating machine and combine The slurries of thing (C), accumulated light 1000mJ/cm is irradiated when being cooled down in a nitrogen environment using UV irradiating machines2, shape Into 45 μm of adhering agent layer of thickness.
As the 2nd releasing sheet, prepare stripping film [the prince Ai Fusi (F-TEX) (stock) for possessing peeling agent layer in PET film Manufacture, 38 μm of RL-07 (L)], apply above-mentioned sticker in the peeling agent layer of the 2nd releasing sheet using blade coating machine and combine The solution of thing (D), accumulated light 1000mJ/cm is irradiated when being cooled down in a nitrogen environment using UV irradiating machines2, shape Into 55 μm of adhering agent layer of thickness.
Overlapping, crimping is carried out in a manner of above-mentioned 1st adhering agent layer is contacted with the 2nd adhering agent layer.In this manner, The stacking adhesive sheet for the attached releasing sheet that the thickness for obtaining adhering agent layer is 100 μm.
(embodiment 5)
In order that making the stacking adhesive sheet that relative dielectric constant is 4.4 of adhesion agent composition (C) and (D), use Formula (1) calculates the ratio of the thickness of the 1st adhering agent layer and the 2nd adhering agent layer.The ratio of the thickness calculated is " (the 1st adhering agent layer Thickness)：(thickness of the 2nd adhering agent layer)=1：4 ", so the thickness of the 1st adhering agent layer is set to 20 μm and the 2nd adhering agent layer Thickness be set to 80 μm, in addition, in a manner of same as Example 4, the thickness for obtaining adhering agent layer is 100 μm of attached stripping From the stacking adhesive sheet of sheet material.
(embodiment 6)
In order that making the stacking adhesive sheet that relative dielectric constant is 3.0 of adhesion agent composition (C) and (D), use Formula (1) calculates the ratio of the thickness of the 1st adhering agent layer and the 2nd adhering agent layer.The ratio of the thickness calculated is " (the 1st adhering agent layer Thickness)：(thickness of the 2nd adhering agent layer)=6.5：3.5 ", so the thickness of the 1st adhering agent layer is set to 65 μm and the 2nd adhesion The thickness of oxidant layer is set to 35 μm, and in addition, in a manner of same as Example 4, the thickness for obtaining adhering agent layer is 100 μm The stacking adhesive sheet of attached releasing sheet.
(measure of relative dielectric constant)
Relative dielectric constant under the frequency 1MHz of stacking adhesive sheet obtained in embodiment is measured, as a result for The result of table 1.Furthermore so-called theoretical relative dielectric constant, refer to utilize the value calculated by formula (1).
[number 3]
In formula (1), ε represents the overall relative dielectric constant of stacking adhesive sheet, and d represents the overall thickness of stacking adhesive sheet. Also, εiRepresent the relative dielectric constant of each adhering agent layer, diRepresent the thickness of each adhering agent layer.Furthermore n represents adhering agent layer The number of plies.
[table 1]
As shown in Table 1, the relative dielectric constant according to calculated by formula (1) and the relative dielectric constant surveyed are basic Unanimously.Can be thus by use calculating formula (1), and easily manufacture the stacking adhesive sheet with required relative dielectric constant.
And then make the stacking adhesive sheet with the 3rd adhering agent layer.
(making of adhesion agent composition (1))
Using as the mass parts of methyl acrylate 40 of non-crosslinked property acrylic ester unit, the mass parts of butyl acrylate 40, work For solvent known to the mass parts of acrylic acid 4- hydroxybutyls 20 utilization of the acrylic monomer unit with bridging property functional group Polymerization and carry out polymerisation, obtain acrylate copolymer solution.Adhesion will be used as using the acrylate copolymer solution Adhesion agent composition (1) is made in the adhesion agent solution of host.
(making of adhesion agent composition (2))
Using as the mass parts of 2-EHA 60 of non-crosslinked property acrylic ester unit, isobornyl acrylate 38 Mass parts, the mass parts of acrylic acid 4- hydroxybutyls 2 as the acrylic monomer unit with bridging property functional group utilize public affairs The solvent polymerization method known and carry out polymerisation, obtain acrylate copolymer solution.Will be with the acrylate copolymer solution Adhesion agent composition (2) is made in adhesion agent solution as adhesion host.
(making of adhesion agent composition (3))
Using as the mass parts of methyl acrylate 30 of non-crosslinked property acrylic ester unit, the mass parts of butyl acrylate 60, work For solvent known to the mass parts of acrylic acid 4- hydroxybutyls 10 utilization of the acrylic monomer unit with bridging property functional group Polymerization and carry out polymerisation, obtain acrylate copolymer solution.Adhesion will be used as using the acrylate copolymer solution Adhesion agent composition (3) is made in the adhesion agent solution of host.
(embodiment 7) has the making of the stacking adhesive sheet 7 of three layers of adhering agent layer
The making of (1) the 2nd adhering agent layer
As the 1st releasing sheet, prepare stripping film [the prince Ai Fusi (F-TEX) (stock) for possessing peeling agent layer in PET film Manufacture, 38 μm of RL-07 (L)], apply above-mentioned sticker (2) using peeling agent layer of the blade coating machine in the 1st releasing sheet Solution, heated 3 minutes at 100 DEG C, form the 2nd adhering agent layer.Phase under the frequency 100Hz of the 2nd adhering agent layer formed To permittivity εrFor 4.5.
Furthermore 5.5 are set in order to which the overall relative dielectric constant of adhesive sheet 7 will be laminated, and according to the thickness of the 1st adhering agent layer Degree and relative dielectric constant and the thickness and relative dielectric constant of the 3rd adhering agent layer, the 2nd adhering agent layer is obtained using formula (1) Most preferred thickness, as a result for, by thickness turn into 51 μm in a manner of apply the 2nd sticker (2).
The making of (2) the 1st adhering agent layers
As the 2nd releasing sheet, prepare possess fissility less than the peeling agent layer of above-mentioned 1st releasing sheet in PET film Stripping film [prince Ai Fusi (F-TEX) (stock) is manufactured, 38 μm of RL-07 (2)], using blade coating machine in the 2nd releasing sheet Peeling agent layer, apply the solution of above-mentioned sticker (1) in a manner of thickness turns into 25 μm, heated 3 minutes at 100 DEG C, shape Into the 1st adhering agent layer.Relative dielectric constant ε under the frequency 100Hz of the 1st adhering agent layer formedrFor 7.1.
The making of (3) the 3rd adhering agent layers
As the 3rd releasing sheet, prepare and the 1st stripping film identical stripping film [prince Ai Fusi (F-TEX) (stock) systems Make, 38 μm of RL-07 (L)], using blade coating machine the 3rd releasing sheet peeling agent layer, by thickness turn into 25 μm in a manner of The solution of above-mentioned sticker (1) is applied, is heated 3 minutes at 100 DEG C, forms the 3rd adhering agent layer.The 3rd sticker formed Relative dielectric constant ε under the frequency 100Hz of layerrFor 7.1.
(4) it is laminated the making of adhesive sheet
After above-mentioned 2nd adhering agent layer is carried out overlapping, crimping in a contact fashion with the 1st adhering agent layer, peel off the 1st and peel off Sheet material and expose the 2nd adhering agent layer, the 2nd adhering agent layer and the 3rd adhering agent layer is carried out overlapping, crimping in a contact fashion Afterwards, the stacking adhesive sheet 7 of attached releasing sheet is obtained.The thickness and relative dielectric constant for being laminated each layer of adhesive sheet 7 are such as the institute of table 2 Show.
[table 2]
(measure of the relative dielectric constant of stacking adhesive sheet)
Relative dielectric constant under the frequency 100kHz of above-mentioned stacking adhesive sheet 7 is measured, the layer as a result obtained Relative dielectric constant ε under the overall frequency 100Hz of folded adhesive sheet 7rFor 5.4.In table 3, the frequency of stacking adhesive sheet 7 is represented Relative dielectric constant and measured value under 100Hz.
[table 3]
Embodiment 7
The relative dielectric constant calculated according to formula (1) 5.5
Measured value 5.4
As shown in table 3, the relatively low adhering agent layer of relative dielectric constant is formed in the 2nd adhering agent layer, and adjusts its thickness, by This can obtain the overall relative dielectric constant of stacking adhesive sheet 7 almost close to the measured value of guess value.Had i.e., it is possible to say There is the stacking adhesive sheet of required relative dielectric constant.
(embodiment 8) is laminated the making of adhesive sheet 8
Sticker (1) is used in the 1st adhering agent layer, sticker (2) is used in the 2nd adhering agent layer, makes in the 3rd adhering agent layer With sticker (3), stacking adhesive sheet 8 is made in method same as Example 7.Furthermore in order to which the relative of adhesive sheet 8 will be laminated Dielectric constant is set to 5.0, and according to the thickness and relative dielectric constant and the thickness and phase of the 3rd adhering agent layer of the 1st adhering agent layer To dielectric constant, the most preferred thickness of the 2nd adhering agent layer is obtained using formula (1), as a result to turn into 100 μm of side with thickness Formula coating sticker (2).
(embodiment 9) is laminated the making of adhesive sheet 9
Make in the 1st adhering agent layer using sticker (3), in the 2nd adhering agent layer using sticker (1), in the 3rd adhering agent layer With sticker (2), in addition, stacking adhesive sheet 9 is made in a manner of same as Example 8.
Furthermore for the relative dielectric constant ε overall by adhesive sheet 9 is laminatedr6.3 are set to, and according to the 1st adhering agent layer Thickness and relative dielectric constant and the thickness and relative dielectric constant of the 3rd adhering agent layer, the 2nd adhering agent layer is obtained using formula (1) Most preferred thickness, as a result for, by thickness turn into 100 μm in a manner of apply sticker (1).
The thickness of each layer of stacking adhesive sheet 8 and 9 is as shown in table 4 with relative dielectric constant.
[table 4]
(measure of the relative dielectric constant of stacking adhesive sheet)
Relative dielectric constant under the frequency 100kHz of above-mentioned stacking adhesive sheet 8 and 9 is measured, is as a result table 5 As a result.
[table 5]
Embodiment 8 Embodiment 9
The relative dielectric constant calculated according to formula (1) 5 6.3
Measured value 5.1 6.4
As shown in table 5, even if during the different situation of relative dielectric constant in all adhering agent layers, control can also be passed through The relative dielectric constant and thickness of adhering agent layer processed, and freely adjust the overall relative dielectric constant of stacking adhesive sheet.
Industrial applicability
According to the present invention, it is possible to provide a kind of method of the relative dielectric constant in more accurately control stacking adhesive sheet.Cause This, in the present invention, can obtain the stacking adhesive sheet with required relative dielectric constant.The stacking adhesive sheet of the present invention is in light Learn the mutual fitting of component, such as the mutual fitting of ito film in touch panel sensor or touch screen module and Liquid Crystal Module It is more useful in fitting.

Claims (18)

1. one kind stacking adhesive sheet, it is characterised in that：It is that at least the stacking with the 1st adhering agent layer and the 2nd adhering agent layer is glued Piece, and the poor absolute value of the 1st adhering agent layer and the relative dielectric constant under the frequency 1MHz of the 2nd adhering agent layer For more than 0.5, the 1st adhering agent layer and the 2nd adhering agent layer are acrylic acid series adhering agent layer, the 1st adhering agent layer Only include selected from different by (methyl) 2-EHA unit, (methyl) n-octyl unit, (methyl) acrylic acid Monooctyl ester unit, the positive nonyl ester units of (methyl) acrylic acid, the different nonyl ester units of (methyl) acrylic acid, the positive last of the ten Heavenly stems ester list of (methyl) acrylic acid Member, (methyl) Isodecyl ester units, (methyl) acrylic acid n-undecane base ester unit, (methyl) acrylic acid dodecyl Ester units, (methyl) stearyl acrylate ester units, (methyl) acrylate ester units, (methyl) benzyl acrylate unit and third (methyl) acrylic ester unit of the non-crosslinked property of at least one of the group that olefin(e) acid isobornyl thiocyanoacetate unit is formed and have The acrylic monomer unit of bridging property functional group, the 2nd adhering agent layer only include being selected from by (methyl) methyl acrylate list Member, (methyl) ethyl acrylate unit, (methyl) propyl acrylate unit, (methyl) isopropyl acrylate unit, (methyl) third In the group that olefin(e) acid N-butyl unit, (methyl) i-butyl ester units and (methyl) tert-butyl acrylate unit are formed (methyl) acrylic ester unit of at least one non-crosslinked property and the acrylic monomer unit with bridging property functional group.
2. stacking adhesive sheet according to claim 1, it is characterised in that：It is that at least there is the 1st adhering agent layer and the 2nd to glue The stacking adhesive sheet of oxidant layer, and with the relative dielectric constant under frequency 1MHz not up to 4 the 1st adhering agent layer and frequency The 2nd adhering agent layer that relative dielectric constant under 1MHz is more than 4.
3. stacking adhesive sheet according to claim 1 or 2, it is characterised in that：Under the frequency 1MHz of 1st adhering agent layer Relative dielectric constant not up to 3.
4. stacking adhesive sheet according to claim 1 or 2, it is characterised in that：1st adhering agent layer is viscous with the described 2nd The thickness for each layer of oxidant layer is more than 10 μm.
5. stacking adhesive sheet according to claim 1 or 2, it is characterised in that：1st adhering agent layer is viscous with the described 2nd The ratio for the thickness of oxidant layer is 1：99~99：1.
6. stacking adhesive sheet according to claim 1 or 2, it is characterised in that：Itself so there is the 3rd adhering agent layer.
7. stacking adhesive sheet according to claim 1 or 2, it is characterised in that：Itself so there is resin bed.
8. stacking adhesive sheet according to claim 7, it is characterised in that：The resin bed is arranged at the 1st sticker Between layer and the 2nd adhering agent layer.
9. stacking adhesive sheet according to claim 7, it is characterised in that：The 1st adhesion is laminated on the resin bed Oxidant layer, the 2nd adhering agent layer is folded in the opposing side with the resin bed via the 1st adhering agent layer.
10. stacking adhesive sheet according to claim 7, it is characterised in that：It is relative under the frequency 1MHz of the resin bed Dielectric constant is 2~10.
A kind of 11. layered product, it is characterised in that：It is by stacking adhesive sheet according to any one of claim 1 to 10 Fit at least one optical component and formed.
12. layered product according to claim 11, it is characterised in that：At least one of the optical component is tin indium oxide Glass or indium oxide tin film.
A kind of 13. relative dielectric constant method of adjustment, it is characterised in that：It at least has the stacking of two layers of adhering agent layer for adjustment The method of the relative dielectric constant of adhesive sheet, and
The stacking adhesive sheet have relative dielectric constant under frequency 1MHz not the 1st adhering agent layer up to 4, with frequency 1MHz Relative dielectric constant be more than 4 the 2nd adhering agent layer,
1st adhering agent layer and the 2nd adhering agent layer are acrylic acid series adhering agent layer；
The relative dielectric constant and thickness, the frequency with the 2nd adhering agent layer under frequency 1MHz by adjusting the 1st adhering agent layer respectively Relative dielectric constant and thickness under rate 1MHz, and the relative dielectric constant of the stacking adhesive sheet is adjusted, the 1st sticker Layer only includes being selected from by (methyl) 2-EHA unit, (methyl) n-octyl unit, (methyl) acrylic acid Different monooctyl ester unit, the positive nonyl ester units of (methyl) acrylic acid, the different nonyl ester units of (methyl) acrylic acid, the positive last of the ten Heavenly stems ester list of (methyl) acrylic acid Member, (methyl) Isodecyl ester units, (methyl) acrylic acid n-undecane base ester unit, (methyl) acrylic acid dodecyl Ester units, (methyl) stearyl acrylate ester units, (methyl) acrylate ester units, (methyl) benzyl acrylate unit and third (methyl) acrylic ester unit of the non-crosslinked property of at least one of the group that olefin(e) acid isobornyl thiocyanoacetate unit is formed and have The acrylic monomer unit of bridging property functional group, the 2nd adhering agent layer only include being selected from by (methyl) methyl acrylate list Member, (methyl) ethyl acrylate unit, (methyl) propyl acrylate unit, (methyl) isopropyl acrylate unit, (methyl) third In the group that olefin(e) acid N-butyl unit, (methyl) i-butyl ester units and (methyl) tert-butyl acrylate unit are formed (methyl) acrylic ester unit of at least one non-crosslinked property and the acrylic monomer unit with bridging property functional group.
14. relative dielectric constant method of adjustment according to claim 13, it is characterised in that：1st adhering agent layer Relative dielectric constant and thickness under frequency 1MHz, with the relative dielectric constant under the frequency 1MHz of the 2nd adhering agent layer and Thickness is adjusted using following formula (1),
<mrow> <mi>&amp;epsiv;</mi> <mo>=</mo> <mfrac> <mi>d</mi> <mrow> <msubsup> <mi>&amp;Sigma;</mi> <mn>1</mn> <mi>n</mi> </msubsup> <mfrac> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>&amp;epsiv;</mi> <mi>i</mi> </msub> </mfrac> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>
In formula (1), ε represents the overall relative dielectric constant of stacking adhesive sheet, and d represents the overall thickness of stacking adhesive sheet；Also, εi Represent the relative dielectric constant of each adhering agent layer, diRepresent the thickness of each adhering agent layer；Furthermore n represents the number of plies of adhering agent layer.
15. relative dielectric constant method of adjustment according to claim 14, it is characterised in that：In the formula (1), in ε1 ~εiUnder conditions of fixation, d is determined in a manner of as specific ε1~di。
16. relative dielectric constant method of adjustment according to claim 14, it is characterised in that：In the formula (1), in εi With diUnder conditions of fixation, ε is determined1~εi-1With d1~di-1。
17. the relative dielectric constant method of adjustment according to any one of claim 14 to 16, it is characterised in that：Described In formula (1), n 2.
A kind of 18. manufacture method for being laminated adhesive sheet, it is characterised in that：It is at least to have two layers of acrylic acid series adhering agent layer The manufacture method of adhesive sheet is laminated, and utilizes the relative dielectric constant adjustment side according to any one of claim 14 to 17 Method and adjust stacking adhesive sheet relative dielectric constant.
CN201480025770.XA 2013-05-10 2014-05-09 It is laminated adhesive sheet, relative dielectric constant method of adjustment and its application Active CN105229100B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203129697U (en) 2013-02-05 2013-08-14 客贝利(厦门)休闲用品有限公司 Tent frame pole
EP3106498B1 (en) 2015-06-16 2021-08-11 Nitto Denko Corporation Pressure-sensitive adhesive composition
JP6691813B2 (en) * 2015-06-16 2020-05-13 日東電工株式会社 Adhesive composition
KR102017014B1 (en) * 2017-05-22 2019-09-03 주식회사 엘지화학 Multilayer adhesive tape
JP7388323B2 (en) * 2020-09-07 2023-11-29 株式会社レゾナック Laminated structure and object detection structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190972A (en) * 2010-03-14 2011-09-21 宸鸿科技(厦门)有限公司 Optical adhesive layer with multilayer structure
CN102464955A (en) * 2010-11-10 2012-05-23 宸鸿光电科技股份有限公司 Optical level composite pressure-sensitive adhesive and an apparatus therewith
CN102510888A (en) * 2010-08-05 2012-06-20 新塔克化成株式会社 Double-faced pressure-sensitive adhesive sheet, double-faced pressure-sensitive adhesive sheet with release sheet, process for producing same, and transparent laminate
JP2012251030A (en) * 2011-06-01 2012-12-20 Toray Advanced Film Co Ltd Adhesive sheet, electrostatic capacity-type touch panel with surface protective layer, and display device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3880418B2 (en) 2002-02-21 2007-02-14 日東電工株式会社 Method for sticking and fixing double-sided adhesive sheet and touch panel to display device
JP4151828B2 (en) 2002-05-29 2008-09-17 日東電工株式会社 Double-sided adhesive sheet and display device with touch panel
JP4093355B2 (en) * 2002-10-21 2008-06-04 日東電工株式会社 Antistatic sheet and adhesive tape
JP4493273B2 (en) 2003-01-29 2010-06-30 日東電工株式会社 Double-sided adhesive sheet and display device with touch panel
JP2006124528A (en) * 2004-10-29 2006-05-18 Toyo Ink Mfg Co Ltd Pressure-sensitive adhesive laminated product and liquid crystal cell member using the same
JP2010147047A (en) 2008-12-16 2010-07-01 Toppan Printing Co Ltd Method of manufacturing multilayered wiring board
JP5498811B2 (en) * 2010-02-17 2014-05-21 アルプス電気株式会社 Capacitive input device
KR101393778B1 (en) * 2010-11-22 2014-05-13 (주)엘지하우시스 Double-Side Adhesive Sheet and Touch Panel Display Device comprising the same
JP5758647B2 (en) * 2011-02-17 2015-08-05 日東電工株式会社 Optical adhesive sheet
JP2012229358A (en) * 2011-04-27 2012-11-22 Nitto Denko Corp Adhesive sheet
JP2013014665A (en) * 2011-07-01 2013-01-24 Nitto Denko Corp Multilayer adhesive article and adhesive sheet
JP2013104028A (en) * 2011-11-15 2013-05-30 Oji Holdings Corp Double-sided adhesive sheet for optical member, and laminate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190972A (en) * 2010-03-14 2011-09-21 宸鸿科技(厦门)有限公司 Optical adhesive layer with multilayer structure
CN102510888A (en) * 2010-08-05 2012-06-20 新塔克化成株式会社 Double-faced pressure-sensitive adhesive sheet, double-faced pressure-sensitive adhesive sheet with release sheet, process for producing same, and transparent laminate
CN102464955A (en) * 2010-11-10 2012-05-23 宸鸿光电科技股份有限公司 Optical level composite pressure-sensitive adhesive and an apparatus therewith
JP2012251030A (en) * 2011-06-01 2012-12-20 Toray Advanced Film Co Ltd Adhesive sheet, electrostatic capacity-type touch panel with surface protective layer, and display device

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