CN103038300A - Selection method for separator and adhesive sheet using separator selected by selection method - Google Patents

Selection method for separator and adhesive sheet using separator selected by selection method Download PDF

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Publication number
CN103038300A
CN103038300A CN2012800021986A CN201280002198A CN103038300A CN 103038300 A CN103038300 A CN 103038300A CN 2012800021986 A CN2012800021986 A CN 2012800021986A CN 201280002198 A CN201280002198 A CN 201280002198A CN 103038300 A CN103038300 A CN 103038300A
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China
Prior art keywords
barrier film
adhesive sheet
evaluation
binder layer
selection
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Granted
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CN2012800021986A
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Chinese (zh)
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CN103038300B (en
Inventor
龟井胜利
生岛伸祐
土生刚志
浅井文辉
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Nitto Denko Corp
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Nitto Denko Corp
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • 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
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • 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
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • 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
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H41/00—Machines for separating superposed webs
    • 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
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • 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
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/10—Homopolymers or copolymers of propene
    • C09J123/14—Copolymers of propene
    • 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
    • C09J7/21—Paper; Textile fabrics
    • 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
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/748—Releasability
    • 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
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/10—Peculiar tacticity
    • C08L2207/14—Amorphous or atactic polypropylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2314/00—Polymer mixtures characterised by way of preparation
    • C08L2314/06—Metallocene or single site catalysts
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • 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
    • C09J2423/00—Presence of polyolefin

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

Abstract

Provided is a method for simply selecting a preferable separator for an adhesive sheet. This selection method includes: a step for obtaining an adhesive sheet that has at least an adhesive layer and a separator in which at least a material that forms an adhesive layer is bonded with the separator in a molten state; a step for producing an adhesive sheet for evaluation in which the separator is peeled from the adhesive sheet obtained and a separator for evaluation is bonded with the adhesive layer of the adhesive sheet; and a step for holding the adhesive sheet for evaluation between a pair of cushion materials and a pair of pressing plates, maintaining the press plate surface temperature at 140 DEG C and pressure of 5 MPa for one minute and thereafter evaluating the peeling force for the separator for evaluation by 180 DEG peeling tests with a peeling rate of 300 mm/min.

Description

The system of selection of barrier film and use are by the adhesive sheet of the barrier film of this system of selection selection
Technical field
The present invention relates to the system of selection of barrier film and the adhesive sheet that the barrier film of this system of selection selection is passed through in use.
Background technology
As the manufacture method of the adhesive sheet with binder layer and substrate layer, from the viewpoint of production efficiency and cost-effectivenes excellence, the known forming method (for example, patent documentation 1) that will consist of the material of substrate layer and consist of the material coextrusion of binder layer.In addition, adhesive sheet usually with the mode configuration isolation film that joins with binder layer as protecting materials until use.In this adhesive sheet, by coextrusion during with the adhesive sheet moulding, can suppress foreign matter sneaks between binder layer and the barrier film, and can access the level and smooth adhesive sheet of face that binder layer and barrier film join, therefore, the binder layer of studying coextrusion forms the method that material is fitted with barrier film under the state of melting.Yet the adhesive sheet that obtains the so sometimes treatability of peeling off difficult, adhesive sheet of barrier film reduces.In addition, for this problem, when using the barrier film of gently peeling off, treatability improves, but the often bounding force of binder layer reduction when adhesive sheet is preserved.Thus, be difficult to take into account good treatability and the appropriate bounding force of adhesive sheet.
For the barrier film that is used for adhesive sheet, according to the barrier film of the suitable selection expectation such as stripper kind, its peeling force.Yet as mentioned above, when fitting with the binder layer formation material of melting, the original ability of barrier film can't be brought into play in the adhesive sheet that obtains sometimes.Therefore, the barrier film that uses in the adhesive sheet by the manufacturing of melting co-extrusion modling need at first be selected the barrier film as candidate, inquires into the suitability of barrier film behind the Practical manufacturing adhesive sheet again.Therefore, when changing the structure of adhesive sheet, make the suitability that adhesive sheet need to be inquired into barrier film, the barrier film that selection is suitable also is not easy.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2009-275209 communique
Summary of the invention
The problem that invention will solve
The present invention finishes in order to solve above-mentioned existing issue, and its purpose is, the method for the barrier film of the adhesive sheet that can select easily to be applicable to have at least binder layer is provided.
For the scheme of dealing with problems
The system of selection of barrier film of the present invention comprises following operation: the material that forms at least binder layer is fitted with barrier film under the state of melting, is had at least the operation of the adhesive sheet of binder layer and barrier film; This barrier film is peeled off from the adhesive sheet that obtains, binder layer and the evaluation of this adhesive sheet are fitted with barrier film, make the operation of estimating with adhesive sheet; And, be somebody's turn to do the evaluation adhesive sheet with a pair of cushioning material and a pair of pressing plate clamping, after keeping 1 minute under 140 ℃ of clamp surface temperature, the pressure 5MPa, the operation of evaluation being estimated with the peeling force of barrier film by 180 ° of stripping tests peeling rate 300mm/ minute under.
In preferred embodiment, the peeling force of selecting to measure in the above-mentioned evaluation operation is the following barrier film of 2.0N/50mm.
In preferred embodiment, the binder layer of above-mentioned adhesive sheet comprises polyolefin-based resins.
In preferred embodiment, said polyolefins is that resin comprises the amorphous propene that uses metallocene catalyst polymerisation to form-(1-butylene) multipolymer.
In other embodiment of the present invention, provide a kind of adhesive sheet.The barrier film that this adhesive sheet comprises substrate layer, binder layer and selects by above-mentioned system of selection.
The effect of invention
According to the present invention, can select easily to be suitable for the barrier film of adhesive sheet.
Embodiment
The system of selection of barrier film of the present invention is the method that selection is suitable for the barrier film of adhesive sheet.The method according to this invention can select easily to be adapted to pass through that the material that forms at least binder layer is fitted with barrier film and the barrier film of the adhesive sheet that obtains under the state of melting.The system of selection of barrier film of the present invention comprises following operation: the material that forms at least binder layer is fitted with barrier film under the state of melting, is had at least the operation of the adhesive sheet of binder layer and barrier film; This barrier film is peeled off from the adhesive sheet that obtains, binder layer and the evaluation of this adhesive sheet are fitted with barrier film, make the operation of estimating with adhesive sheet; And, be somebody's turn to do the evaluation adhesive sheet with a pair of cushioning material and a pair of pressing plate clamping, after keeping 1 minute under 140 ℃ of clamp surface temperature, the pressure 5MPa, the operation of evaluation being estimated with the peeling force of barrier film by 180 ° of stripping tests peeling rate 300mm/ minute under.According to system of selection of the present invention, can select easily to be suitable for by the peeling force of estimating barrier film the barrier film of adhesive sheet.
A. the operation that is had at least the adhesive sheet of binder layer and barrier film
System of selection of the present invention comprises that the material that forms at least binder layer fits with barrier film under the state of melting, had at least the operation of the adhesive sheet of binder layer and barrier film.Representational is that this adhesive sheet has substrate layer, binder layer and barrier film successively.
Method as the above-mentioned adhesive sheet of moulding is not particularly limited, and comprises that the material that forms at least binder layer gets final product with operation that barrier film is fitted under the state of melting.Above-mentioned forming method for example comprises following operation: after will forming the material of binder layer and forming the material melting of substrate layer, extrude, obtain the operation of the duplexer of binder layer and substrate layer; Be fit under the state of melting binder layer and the barrier film of this duplexer at the material that forms at least binder layer, obtain the operation of adhesive sheet.
Obtain in the operation of duplexer of above-mentioned binder layer and substrate layer, this duplexer for example can followingly obtain: at least two extruders that is connected in mould (dies) supplies with the material that forms binder layer respectively, supply with the material that forms substrate layer to another, after the melting, extrude, thereby obtain.Condition during the above-mentioned adhesive sheet of moulding (for example, die temperature) can be set aptly according to the material that consists of this each layer of adhesive sheet.For example, can be set as the formation material that makes each layer of adhesive sheet be the temperature of molten state to die temperature.In one embodiment, die temperature can be set as 160 ℃～220 ℃.
Particularly, the operation of above-mentioned duplexer and barrier film of fitting can followingly be carried out: in obtaining the operation of above-mentioned duplexer, be under the state of melting the binder layer of this duplexer to be contacted with barrier film at the material that forms at least this binder layer of the duplexer of extruding, process by the touch roll method of forming, thereby carry out.Condition when the material that forms above-mentioned binder layer contacts with barrier film (for example, consisting of temperature and the contact pressure that the material of binder layer contacts with barrier film) can be set aptly according to the material of each layer of formation adhesive sheet.For example, consist of the temperature that the material of binder layer contacts with barrier film and can be set as the temperature that the material that forms at least binder layer is kept the state of melting.In one embodiment, consist of the temperature that the material of binder layer contacts with barrier film and can be set as 120 ℃～200 ℃.
As the barrier film that uses in this operation (below be also referred to as make use barrier film), can use suitable arbitrarily barrier film.For example, in this technical field, as the barrier film of adhesive sheet, can use general barrier film.Particularly, can list trade(brand)name MRF-38, the trade(brand)name HY-S06 that film Co., Ltd. in Dongshan makes etc. that resin company of Mitsubishi makes.
B. estimate the production process with adhesive sheet
The evaluation of using in the evaluation operation of system of selection of the present invention can followingly obtain with adhesive sheet.At first, the adhesive sheet that obtains from the method by above-mentioned A item is peeled off barrier film.Peeling off of this barrier film can be undertaken by suitable arbitrarily means, can use suitable arbitrarily stripping machine to peel off, and also can peel off with hand.
Then, with peeled off barrier film adhesive sheet binder layer with fit with barrier film as the evaluation of alternative.Owing in the evaluation operation of peeling force described later, suppress, thereby need in the production process of estimating with adhesive sheet, this adhesive sheet and this evaluation not fitted securely with barrier film, use the degree applying of the stacked state of barrier film to get final product can keep this adhesive sheet and this evaluation.
C. estimate with the peeling force of barrier film and estimate operation
Operation is following carries out with the evaluation of the peeling force of barrier film in above-mentioned evaluation.With the evaluation that obtains in the above-mentioned B operation of a pair of cushioning material clamping with adhesive sheet after, use again a pair of pressing plate clamping, under 140 ℃ of clamp surface temperature, pressure 5MPa, kept 1 minute, suppress.For the barrier film that is used for adhesive sheet, when the clamp surface temperature surpasses 140 ℃, the tendency that exists peeling off of barrier film and binder layer to become very difficult.Therefore, can be take the clamp surface temperature as 140 ℃ of compactings of estimating with adhesive sheet, the peeling force of barrier film of the evaluation in the adhesive sheet after the evaluation compacting, thus selection is suitable as the barrier film of the barrier film of adhesive sheet.Need to prove that the clamp surface temperature in the peeling force evaluation test of the present invention is also referred to as the temperature of clamp surface.
In the above-mentioned compacting, the configuration cushioning material prevents from adhesive sheet is applied excessive pressure between estimating with adhesive sheet and pressing plate.As this cushioning material, can use the arbitrarily suitable cushioning material that can be applicable to hot pressing.As cushioning material, duplexer of material, non-woven fabrics, rubber and the non-woven fabrics that for example, can list rubber, thermotolerance elastomerics, the organic or inorganic fiber is combined into binding agent etc.The cushioning material choice for use that is used for compacting can make to put on to estimate with the pressure of the adhesive sheet suitable cushioning material for suitable pressure and get final product.For example, estimate the pressure of using adhesive sheet by adjusting constituent material, the size (area) of cushioning material, can adjust to put on.More specifically, with respect to the barrier film that is of a size of 150mm * 200mm, can usable floor area be the rubber plate of 130mm * 160mm.
In addition, cushioning material and estimate adhesion with adhesive sheet in order to prevent from suppressing can dispose respectively resin sheet between cushioning material and evaluation are with adhesive sheet, suppress.This resin sheet is to get final product as the resin sheet that barrier film uses, and can use suitable arbitrarily sheet, for example, can use PET series resin sheet, polyimide based resin film etc.The thickness of this resin sheet is generally 38 μ m～75 μ m.
Estimate with the compacting of adhesive sheet and can carry out with the arbitrarily suitable means that can set above-mentioned clamp surface temperature and pressure.For example, commercially available press can be used, particularly, the MINI TEST PRESS-10 of Japan smart machine company manufacturing etc. can be listed.
Evaluation after the compacting is placed to room temperature with adhesive sheet, estimates the stripping test with barrier film.This stripping test is carried out with barrier film by peeling off to estimate under the condition of 180 ° of peeling rate 300mm/ minutes, peel angle.
Can be according to the needed characteristic of barrier film by the barrier film of selecting by the peeling force of above-mentioned stripping test mensuration to expect.For example, when expecting the treatability excellence and keeping the barrier film of appropriate bounding force, the peeling force of using aptly above-mentioned stripping test to measure gets final product as the barrier film below the 2.0N/50mm.In addition, during the higher barrier film of the adaptation of expectation binder layer and barrier film, can use peeling force that above-mentioned stripping test measures above the barrier film of 2.0N/50mm.From with commercially available adhesive tape adhering apparatus (for example; the grinding back surface protective tapes adhering apparatus that day eastern smart machine company makes; trade(brand)name DR3000III etc.) viewpoint of processing; the peeling force 2.0N/50mm that can measure with above-mentioned stripping test selects the barrier film of expecting as benchmark.In addition, during the higher barrier film of expectation treatability, the less barrier film of peeling force that uses above-mentioned stripping test to measure gets final product.
D. adhesive sheet
Representational is that applicable adhesive sheet of the present invention comprises substrate layer, binder layer and barrier film.In addition, as required, this adhesive sheet also can comprise other suitable arbitrarily layer.As this other the layer, for example can list and give stable on heating upper layer.
The thickness of adhesive sheet (thickness that does not comprise barrier film) is preferably 90 μ m～285 μ m, more preferably 105 μ m～225 μ m, more preferably 130 μ m～210 μ m.
D-1. barrier film
Above-mentioned barrier film is to select by the system of selection of barrier film of the present invention.Barrier film has substrate layer and peeling agent layer usually.This substrate layer and peeling agent layer can be made of suitable arbitrarily material.For this barrier film, the peeling force of the barrier film of estimating in the system of selection of the present invention is preferably below the 2.0N/50mm, more preferably 0.05N/50mm～2.0N/50m, more preferably 0.05N/50mm～1.8N/50mm.By using this barrier film, can access the adhesive sheet that has excellent treatability and keep appropriate bounding force.In addition, when forming the more difficult adhesive sheet of peelling off from binder layer of barrier film, the barrier film that uses the peeling force of estimating in the system of selection of the present invention to surpass 2.0N/50mm gets final product.
The thickness of barrier film is not particularly limited, and can be set as suitable arbitrarily thickness.The thickness of barrier film for example can be set as 25 μ m～250 μ m.
D-2. binder layer
Above-mentioned binder layer is to be made of suitable arbitrarily tackiness agent, for example, can list the tackiness agent of thermoplastic resins such as comprising polyolefin-based resins, acrylic resin, phenylethylene resin series etc.This binder layer preferably comprises polyolefin-based resins, particularly, can list ethylene copolymer, the polyolefin modified polymkeric substance etc. such as Low Density Polyethylene, ultra-low density polyethylene, low crystalline polypropylene, amorphous propene-(1-butylene) multipolymer, ionomer resin, ethylene-vinyl acetate copolymer, ethene-(methyl) acrylic copolymer, ethene-(methyl) Acrylic Ester-Maleic Anhydride, ethylene-methyl methacrylate glycidyl ester copolymer.This binder layer more preferably comprises amorphous propene-(1-butylene) multipolymer.By using this binder layer, can obtain to the pollution of adherend less, the adhesive sheet that can take into account bounding force and separability and can make by co-extrusion modling.And then, so long as this binder layer, just can be by making adhesive sheet with the substrate layer co-extrusion modling, with few process number and with an organic solvent just can not obtain adhesive sheet.Need to prove that in this specification sheets, " amorphous " refers to not have the character of the clear and definite fusing point as crystallization.
Above-mentioned amorphous propene-(1-butylene) multipolymer can be preferably by making propylene and 1-butylene polymerization obtain with metallocene catalyst.More specifically, amorphous propene-(1-butylene) multipolymer for example can followingly obtain: use metallocene catalyst to make the polymerization process of propylene and 1-butylene polymerization, behind this polymerization process, remove the residual catalyst operation, remove the postprocessing working procedures such as foreign matter operation, thereby obtain.Amorphous propene-(1-butylene) multipolymer is through can be to obtain such as shapes such as Powdered, particulate state after such operation.As metallocene catalyst, for example, can list the even mixed catalyst of the metallocene that comprises metallocene compound and aikyiaiurnirsoxan beta, load has the metallocene loaded catalyst of metallocene compound etc. on particulate carrier.The amorphous propene that the use metallocene catalyst polymerisation forms-(1-butylene) multipolymer demonstrates narrow molecular weight distribution.
In above-mentioned amorphous propene-(1-butylene) multipolymer, the ratio that contains that derives from the Component units of propylene is preferably 80 % by mole～99 % by mole, and more preferably 85 % by mole～99 % by mole, more preferably 90 % by mole～99 % by mole.
In above-mentioned amorphous propene-(1-butylene) multipolymer, the ratio that contains that derives from the Component units of 1-butylene is preferably 1 % by mole～15 % by mole, more preferably 1 % by mole～10 % by mole.So long as be in such scope, just can access the adhesive sheet of the balance excellence of toughness and flexibility.
Above-mentioned amorphous propene-(1-butylene) multipolymer can be segmented copolymer, also can be random copolymers.
In the scope of not damaging effect of the present invention, above-mentioned amorphous propene-(1-butylene) multipolymer can also comprise the Component units that derives from other monomer.As other monomer, such as listing the alpha-olefins such as ethene, 1-amylene, 1-hexene, 1-octene, 1-decene, 4-methyl-1-pentene, 3-Methyl-1-pentene etc.
In the scope of not damaging effect of the present invention, above-mentioned binder layer can also comprise other composition.As this other composition, such as listing antioxidant, UV light absorber, photostabilizer, heat-resisting stabilizing agent, static inhibitor etc.The kind of other composition and consumption can suitably be selected according to purpose.
The thickness of binder layer is preferably 20 μ m～100 μ m, more preferably 30 μ m～65 μ m.
D-3. substrate layer
Above-mentioned substrate layer can consist of with suitable arbitrarily material, for example, can list polyester (polyethylene terephthalate, PEN, polybutylene terephthalate, PBN etc.), polyolefine (polyethylene, polypropylene, ethylene-propylene copolymer etc.), polyvinyl alcohol, polyvinylidene dichloride, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, polyvinyl acetate (PVA), polymeric amide, polyimide, cellulose family, fluorine resin, polyethers, polystyrene resin (polystyrene etc.), polycarbonate, polyethersulfone etc.Above-mentioned substrate layer preferably comprises ethylene-vinyl acetate copolymer.
In the scope of not damaging effect of the present invention, above-mentioned substrate layer can also comprise other composition.As this other composition, for example can use the identical composition of other composition that can comprise in the binder layer with above-mentioned explanation.
The thickness of substrate layer is preferably 30 μ m～185 μ m, more preferably 65 μ m～175 μ m.
D-4. other the layer
Other layer as contained in the adhesive sheet of the present invention for example, can list and can give stable on heating upper layer to adhesive sheet.This upper layer can use has stable on heating arbitrarily suitable resin, preferably comprises polypropylene-based resin.Preferably by obtain above-mentioned polypropylene-based resin with metallocene catalyst polymerisation.More specifically, polypropylene-based resin for example can followingly obtain: the polymerization process that uses metallocene catalyst to make to comprise the monomer composition polymerization of propylene, behind this polymerization process, remove the residual catalyst operation, remove the postprocessing working procedures such as foreign matter operation, thereby obtain.Polypropylene-based resin can be to obtain such as shapes such as Powdered, particulate state through such operation.As metallocene catalyst, for example can list above-mentioned illustrative metallocene catalyst.
Above-mentioned polypropylene-based resin can use commercially available product.As the object lesson of the polypropylene-based resin of commercially available product, can list trade(brand)name " WINTEC " that Japan Polypropylene Corp. makes, " WELNEX " series etc.
In the scope of not damaging effect of the present invention, above-mentioned upper layer can also comprise other composition.As this other composition, can list the identical composition of other composition that can comprise in the binder layer with above-mentioned explanation.The kind of other composition and consumption can suitably be selected according to purpose.
Embodiment
Below, by embodiment the present invention is specifically described, but the present invention is not subjected to any restriction of these embodiment.Need to prove that test and evaluation method among the embodiment etc. are as follows.In addition, part refers to weight part.
(reference example 1) test making of adhesive sheet
As forming the material that to give stable on heating upper layer, (Japan Polypropylene Corp. makes the polypropylene-based resin that use obtains by metallocene catalyst polymerisation, trade(brand)name " WELNEX:RFGV4A ", 130 ℃ of fusing points, 120 ℃ of softening temperatures, Mw/Mn=2.9).
As the material that forms substrate layer, use ethylene-vinyl acetate copolymer (DU PONT-MITSUI POLYCHEMICALS CO., LTD. makes, trade(brand)name " EVAFLEX P-1007 ").
As the material that forms binder layer, the amorphous propene that use obtains by metallocene catalyst polymerisation-(1-butylene) multipolymer (sumitomo chemical company manufacturing, trade(brand)name " TAFTHREN H5002 ", derive from 10 % by mole of the Component units of 90 % by mole of the Component units of propylene/derive from 1-butylene, Mw=230000, Mw/Mn=1.8).
With 100 parts of material input forcing machines separately that form the material of above-mentioned upper layer, 100 parts of materials that form above-mentioned substrate layer and 100 parts of above-mentioned binder layers of formation, carry out T-shaped mould melting coextrusion (die temperature: 180 ℃).From the binder layer of the duplexer of the upper layer/substrate layer of mould coextrusion/binder layer by the touch roll (air gap: 150mm of fitting, Contact Temperature: 165 ℃) makes with barrier film (resin company of Mitsubishi manufacturing, MRF38, thickness 38 μ m), obtain the test adhesive sheet of upper layer (thickness 30 μ m)/substrate layer (thickness 130 μ m)/binder layer (thickness 45 μ m)/barrier film.Need to prove that the thickness of upper layer, substrate layer and binder layer can be controlled by the shape of T-shaped mould outlet.
[embodiment 1] is suitable for the selection of the barrier film of adhesive sheet
(estimating with barrier film 1)
The barrier film of release adhesive layer side on the adhesive sheet that from reference example 1, obtains.Then, fit evaluation with barrier film 1 (film Co., Ltd. in Dongshan makes, HY-S30, thickness 38 μ m) at binder layer, obtain estimating and use adhesive sheet.
(Japan smart machine company makes, the evaluation adhesive sheet that the compacting of MINI TEST PRESS-10, plate face area: 250mm * 250mm) obtains to use press.Use the MRN38 of resin company of Mitsubishi manufacturing as resin sheet (barrier film), and the use rubber plate (thickness: 1mm, 130mm * 160mm) as cushioning material.To estimate with adhesive sheet with stainless steel plate (SUS plate)/resin sheet/cushioning material/resin sheet/evaluations usefulness sequential cascade of adhesive sheet/resin sheet/cushioning material/resin sheet/stainless steel plate after, use the pressing plate clamping, under 140 ℃ of clamp surface temperature, pressing pressure 5MPa, kept 1 minute.Then, adhesive sheet is placed to room temperature, the evaluation peeling force (peeling rate: 300mm/ minute, peel angle: 180 °) of barrier film of measuring adhesive sheet.The peeling force that records is shown in table 1.
(estimating with barrier film 2)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 2 (manufacturing of Dongshan film Co., Ltd., HY-TS11, thickness 75 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 3)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 3 (manufacturing of Dongshan film Co., Ltd., HY-TS15, thickness 75 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 4)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 4 (manufacturing of resin company of Mitsubishi, MRE38, thickness 38 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 5)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 5 (manufacturing of resin company of Mitsubishi, MRN38, thickness 38 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 6)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 6 (manufacturing of resin company of Mitsubishi, MRF38, thickness 38 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 7)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 7 (manufacturing of Dongshan film Co., Ltd., HY-S10, thickness 75 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 8)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 8 (manufacturing of Dongshan film Co., Ltd., HY-S06, thickness 75 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 9)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 9 (manufacturing of Dongshan film Co., Ltd., HY-TS05G, thickness 75 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
(estimating with barrier film 10)
Except in-service evaluation replaces estimating with outside the barrier film 1 with barrier film 10 (manufacturing of Dongshan film Co., Ltd., HY-US20, thickness 75 μ m), implement equally the evaluation of measuring peeling force of barrier film with barrier film 1 with evaluation.The peeling force that records is shown in table 1.
[table 1]
? Barrier film 1 Barrier film 2 Barrier film 3 Barrier film 4 Barrier film 5
Peeling force (N/50mm) 1.52 1.50 1.27 0.06 1.11
? Barrier film 6 Barrier film 7 Barrier film 8 Barrier film 9 Barrier film 10
Peeling force (N/50mm) 4.54 4.33 4.19 2.07 2.41
[embodiment 2] use the evaluation of the adhesive sheet of the barrier film of selecting
Implement equally with reference example 1 with the barrier film 1～10 except in-service evaluation, obtain adhesive sheet 1～10.The adhesive sheet 1～10 that obtains is supplied in following evaluation.Show the result in table 2.
[evaluation]
(1) peeling force of barrier film
The peeling force of the barrier film in the adhesive sheet that mensuration obtains (peeling rate: 300mm/min, peel angle: 180 °).
(2) bounding force of binder layer
With the adhesive sheet that obtains 50 ℃ of lower slakings after 2 days, peel off the barrier film that is fitted on the binder layer, by the method (laminating condition: 2kg roller round trip based on JIS Z 0237 (2000), peeling rate: 300mm/min, 180 ° of peel angle) measure this binder layer to the bounding force of the minute surface (silicon system) of 4 inches semiconductor crystal wafers.The value of measuring is 0.005N/20mm when above, has sufficient bounding force as adhesive sheet.
[table 2]
Figure BDA00002784515600141
Figure BDA00002784515600142
For the adhesive sheet 1～5 of the peeling force of using the barrier film that records among the embodiment 1 as the barrier film 1～5 below the 2.0N/50mm, barrier film is peeled off easily, and has moderately kept the bounding force of binder layer.In addition, for the adhesive sheet 6～10 of the peeling force of using the barrier film of measuring among the embodiment 1 above the barrier film 6～10 of 2.0N/50mm, compare with barrier film 1～5, it is larger to be used for peeling off the required power of barrier film.
Utilizability on the industry
The system of selection of barrier film of the present invention for example can be used for the selection of the employed barrier film of adhesive sheet aptly.

Claims (5)

1. the system of selection of a barrier film, it comprises following operation:
At least the material that forms binder layer is fitted with barrier film under the state of melting, is had at least the operation of the adhesive sheet of binder layer and barrier film;
This barrier film is peeled off from the adhesive sheet that obtains, binder layer and the evaluation of this adhesive sheet are fitted with barrier film, make the operation of estimating with adhesive sheet; And,
Be somebody's turn to do the evaluation adhesive sheet with a pair of cushioning material and a pair of pressing plate clamping, after keeping 1 minute under 140 ℃ of clamp surface temperature, the pressure 5MPa, the operation of evaluation being estimated with the peeling force of barrier film by 180 ° of stripping tests peeling rate 300mm/ minute under.
2. the system of selection of barrier film according to claim 1, wherein, the peeling force of selecting to measure in the described evaluation operation is the following barrier film of 2.0N/50mm.
3. the system of selection of barrier film according to claim 1, wherein, the binder layer of described adhesive sheet comprises polyolefin-based resins.
4. the system of selection of barrier film according to claim 3, wherein, described polyolefin-based resins comprises the amorphous propene that uses metallocene catalyst polymerisation to form-(1-butylene) multipolymer.
5. adhesive sheet, the barrier film that it contains substrate layer, binder layer and selects by each described system of selection of claim 1.
CN201280002198.6A 2011-06-14 2012-05-30 Selection method for separator and adhesive sheet using separator selected by selection method Expired - Fee Related CN103038300B (en)

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