WO2012067205A1 - 透光性硬質基板積層体の加工方法及び板状製品の製造方法 - Google Patents
透光性硬質基板積層体の加工方法及び板状製品の製造方法 Download PDFInfo
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- WO2012067205A1 WO2012067205A1 PCT/JP2011/076580 JP2011076580W WO2012067205A1 WO 2012067205 A1 WO2012067205 A1 WO 2012067205A1 JP 2011076580 W JP2011076580 W JP 2011076580W WO 2012067205 A1 WO2012067205 A1 WO 2012067205A1
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- WIPO (PCT)
- Prior art keywords
- adhesive
- meth
- acrylate
- cradle
- laminate
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
- C03B33/076—Laminated glass comprising interlayers
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- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
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- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- 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
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
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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
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
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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
- 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
- C09J2301/416—Additional features of adhesives in the form of films or foils characterized by the presence of essential components use of irradiation
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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
- C09J2433/00—Presence of (meth)acrylic polymer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
Definitions
- the present invention relates to a method for processing a light-transmitting hard substrate laminate.
- the present invention also relates to a method for manufacturing a plate-like product such as a protective glass of a display element.
- Display devices of various electronic devices such as TVs, notebook computers, car navigation systems, calculators, mobile phones, electronic notebooks, and PDAs (Personal Digital Assistants) include liquid crystal displays (LCD), organic EL displays (OELD), electroluminescent displays ( Display elements such as ELD), field emission displays (FED), and plasma displays (PDP) are used. And in order to protect a display element, it is common to install the plate glass product for protection facing a display element.
- LCD liquid crystal displays
- OELD organic EL displays
- ELD electroluminescent displays
- FED field emission displays
- PDP plasma displays
- This flat glass product is obtained by processing a flat glass into a size and shape suitable for each display device. In order to meet the price level required in the market, it is possible to process a large amount of flat glass products with high production efficiency. Desired.
- Patent Document 1 proposes a method for increasing the production efficiency of a sheet glass product. Specifically, “a large number of material glass sheets (1) are stacked, and each material glass sheet (1) is integrally fixed by a peelable fixing material (2) interposed between each material glass sheet (1). Forming the material glass block (A), dividing the material glass block (A) in the plane direction to form a small-area divided glass block (B), and processing at least the outer periphery of the divided glass block (B) A product glass block (C) having a product shape in plan view is formed, and after the end face processing of the product glass block (C), the product glass block (C) is individually separated. “Processing method” is proposed (claim 1).
- Patent Document 1 states that “the fixing material (2) interposed between the respective material glass plates (1) is cured when irradiated with ultraviolet rays, and is cured by softening the cured state when heated. It is described that “the material is used” (claim 4). As a result, "When a photocurable liquid sticking agent is interposed between the upper and lower material plate glasses and pressed in the vertical direction, the liquid sticking agent spreads in the form of a film with a uniform thickness over the entire surface between the upper and lower material plate glasses.
- the process glass block (B) is processed into at least the outer periphery to form a product glass block (C) having a plan view product shape
- the product glass block There is no description regarding fixing of a workpiece in the step of “end processing (C)” (hereinafter, the outer shape processing of the light-transmitting hard substrate laminate is referred to as “router processing”).
- an object of the present invention is to provide a method capable of processing a translucent hard substrate laminate such as a glass block described in Patent Document 1 with high accuracy. Moreover, this invention makes it another subject to provide the manufacturing method of the plate-shaped product using the said processing method.
- the present inventor has intensively studied to solve the above problems, and it is effective to carry out cutting processing and router processing after fixing the translucent hard substrate laminate on the receiving stand with an adhesive. Thought.
- the light-transmitting hard substrate laminate is fixed to the cradle with a permanent adhesive, it is not easy to peel off the laminate from the cradle after the processing is completed. There is a high risk of cracking. Moreover, even if it does not break, there is a concern that adhesive work may be left on the surface of the laminated body and the cradle, and the workability may be deteriorated such that a cleaning operation is required.
- the present inventor when using an adhesive having a predetermined component composition, maintains the fixed state to the cradle during cutting processing or router processing, while cutting processing or router After processing, it discovered that the translucent hard board
- the present invention completed on the basis of the above knowledge, in one aspect, -Preparing a translucent hard substrate laminate in which two or more translucent hard substrates are bonded together with a photocurable adhesive; -Fixing the laminate to the cradle with the following adhesive X, adhesive Y or combinations thereof; ⁇ Adhesive X> Curability containing (A ′) polyfunctional (meth) acrylate, (B ′) monofunctional (meth) acrylate, (C ′) organic peroxide, and (D ′) a decomposition accelerator for the organic peroxide.
- substrate laminated body which concerns on this invention is in one Embodiment.
- ⁇ Adhesive X> A ′) Multifunctional (meth) acrylate, (B ′) Monofunctional (meth) acrylate, (C ′) Organic peroxide, and (D ′) Adhesiveness containing the organic peroxide decomposition accelerator Adhesive composition which is a composition and the total mass of component (A '), (B'), (C ') and (D') occupies 90 mass% or more of the composition
- substrate laminated body serves as a cradle.
- the adhesive X, the adhesive Y, or a combination thereof is applied to the cradle and / or the adhesive surface of the laminate in an application pattern that can maintain the fixed state.
- substrate laminated body which concerns on this invention in one Embodiment WHEREIN When performing the said process B, the adhesive agent X and adhesion
- the agent Y is applied to the cradle and / or the adhesive surface of the laminate.
- the adhesive X, the adhesive Y, or a combination thereof is a mixture of the adhesive X and the adhesive Y.
- At least an adhesive X is used, and the adhesive X does not contain a polar organic solvent.
- substrate laminated body which concerns on this invention is external force, without heating the translucent hard board
- the step of peeling from the cradle by applying a slab is a step of inserting a jig into the adhesive layer between the cradle and the light-transmitting hard substrate laminate and peeling it using this principle.
- the light transmissive hard substrate is a plate glass.
- the translucent hard substrates bonded together by heating the translucent hard substrate laminate subjected to the processing method of the translucent hard substrate laminate according to the present invention.
- a method for producing a plate-like product which includes a step of forming a plurality of plate-like products.
- a translucent hard substrate laminate can be processed with high accuracy, and a plate-like product with improved dimensional accuracy can be industrially produced.
- the present invention can be suitably used, for example, when mass-producing protective glass for display elements.
- the adhesive may be a generic term for a photo-curable fixing agent and a room-temperature-curable adhesive composition.
- FIG. 1 is a schematic diagram illustrating an example of a light-transmitting hard substrate laminate before performing cutting processing or external processing.
- substrate which comprises a translucent hard board
- Plate glass Tempored plate glass, raw material glass plate, glass substrate with a transparent conductive film, a glass substrate with which the electrode and the circuit were formed, etc.
- Sapphire substrate Glass
- quartz substrate quartz substrate
- plastic substrate magnesium fluoride substrate and the like.
- Not particularly limited to the size of a sheet of translucent hard substrate but typically have a 2 degree of area 10000 ⁇ 250000mm, having a thickness of about 0.1 ⁇ 2 mm.
- the light-transmitting hard substrates to be laminated have the same size.
- the translucent hard substrate laminate is formed by laminating two or more translucent hard substrates. If the entire thickness of the light-transmitting hard substrate laminate is too thin, the mechanical strength becomes weak, and it becomes easy to break when peeling the light-transmitting hard substrate laminate fixed to the cradle with an adhesive for processing.
- the material of the translucent hard substrate preferably 5 or more (the total thickness of the substrate is 0.5 mm or more), more preferably about 10 to 30 (the total thickness of the substrate is 1). (About 60 mm) is laminated through a photo-curing adhesive.
- each translucent hard substrate can be provided with a predetermined printing pattern or plating pattern for performing one of the functions of the plate-like product.
- the print pattern include a mobile phone display screen design
- the plating pattern include a metal wiring pattern such as Al or AlNd, and a rotary encoder provided with a chromium plating pattern.
- the photo-curable adhesive is cured by irradiating light such as ultraviolet rays and softens when heated to a high temperature.
- the irradiation light is generally ultraviolet rays, but is not limited thereto, and may be appropriately changed according to the characteristics of the fixing agent used. For example, microwaves, infrared rays, visible light, ultraviolet rays, X-rays, ⁇ rays, electron beams and the like can be irradiated.
- light refers to not only visible light but also electromagnetic waves (energy rays) including a wide wavelength region.
- Lamination of the translucent hard substrate is performed by, for example, sandwiching each translucent hard substrate having a photocurable adhesive applied to one or both bonded surfaces, and then sandwiching the translucent hard substrate. It can be carried out by irradiating light for curing the spreading adhesive. By repeating this a desired number of times, a translucent hard substrate laminate in which a desired number of translucent hard substrates are laminated can be produced. The light irradiation may be performed every time one light-transmitting hard substrate is stacked, or may be performed collectively after stacking a plurality of sheets as long as the light reaches the fixing agent.
- Any known photocurable fixing agent can be used and is not particularly limited.
- (A) As a polyfunctional (meth) acrylate two or more (meth) acryloylated polyfunctional (meth) acrylate oligomer / polymer or two or more (meth) acryloyl groups at the oligomer / polymer terminal or side chain Polyfunctional (meth) acrylate monomers having can be used.
- 1,2-polybutadiene terminated urethane (meth) acrylate for example, “TE-2000”, “TEA-1000” manufactured by Nippon Soda Co., Ltd.
- hydrogenated product thereof for example, “TEAI-1000” manufactured by Nippon Soda Co., Ltd.
- 1,4-polybutadiene terminated urethane (meth) acrylate eg “BAC-45” manufactured by Osaka Organic Chemical Co., Ltd.
- polyisoprene terminated (meth) acrylate for example, “UV-2000B”, “UV-3000B”, “UV-7000B” manufactured by Nippon Synthetic Chemical Co., Ltd.
- polyester-based urethane (meth) acrylate and / or polyether-based urethane (meth) acrylate are preferable, and polyester-based urethane (meth) acrylate is more preferable because of its great effect.
- the urethane (meth) acrylate is a reaction between a polyol compound (hereinafter represented by X), an organic polyisocyanate compound (hereinafter represented by Y), and a hydroxy (meth) acrylate (hereinafter represented by Z).
- X polyol compound
- Y organic polyisocyanate compound
- Z hydroxy (meth) acrylate
- polyol compound (X) examples include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, 1,4-butanediol, polybutylene glycol, 1, 5-pentanediol, 1,6-hexanediol, 1,8-octanediol, 1,9-nonanediol, 3-methyl-1,5-pentanediol, 2,4-diethyl-1,5-pentanediol, 2,2-butylethyl-1,3-propanediol, neopentyl glycol, cyclohexanedimethanol, hydrogenated bisphenol A, polycaprolactone, trimethylolethane, trimethylolpropane, poly At least a polyhydric alcohol such as trimethylolpropane, pent
- the organic polyisocyanate compound (Y) is not particularly limited.
- aromatic, aliphatic, cycloaliphatic, and alicyclic polyisocyanates can be used.
- hydroxy (meth) acrylate (Z) examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 2-hydroxyethyl acryloyl phosphate, and 4-butyl.
- the weight average molecular weight of the polyfunctional (meth) acrylate oligomer / polymer is preferably 7000 to 60000, more preferably 13000 to 40000.
- the weight average molecular weight is obtained by preparing a calibration curve with commercially available standard polystyrene using GPC system (SC-8010 manufactured by Tosoh Corporation) using tetrahydrofuran as a solvent under the following conditions. It was.
- bifunctional (meth) acrylate monomer examples include 1,3-butylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, 1,9- Nonanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, dicyclopentanyl di (meth) acrylate, 2-ethyl-2-butyl-propanediol di (meth) acrylate, neopentyl glycol modified trimethylolpropane Di (meth) acrylate, stearic acid-modified pentaerythritol di (meth) acrylate, polypropylene glycol di (meth) acrylate, 2,2-bis (4- (meth) acryloxydiethoxyphenyl) propane, 2,2-bis (4- (meth) acryl Propoxy phenyl
- 1,6-hexadiol di (meth) acrylate and / or dicyclopentanyl di (meth) acrylate is preferable, and dicyclopentanyl di (meth) acrylate is more preferable from the viewpoint of great effect.
- trifunctional (meth) acrylate monomer examples include trimethylolpropane tri (meth) acrylate, tris [(meth) acryloxyethyl] isocyanurate, and the like. Among these, trimethylolpropane tri (meth) acrylate is more preferable because of its great effect.
- Examples of the tetrafunctional or higher (meth) acrylate monomer include dimethylolpropane tetra (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol ethoxytetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, or dipenta Examples include erythritol hexa (meth) acrylate.
- polyfunctional (meth) acrylates it is preferable to contain a polyfunctional (meth) acrylate oligomer / polymer and / or a bifunctional (meth) acrylate monomer in terms of high effect. It is more preferable to use a polymer and a bifunctional (meth) acrylate monomer in combination.
- the content ratio is 100 parts by mass in total of the polyfunctional (meth) acrylate oligomer / polymer and the bifunctional (meth) acrylate monomer.
- Multifunctional (meth) acrylate oligomer / polymer: bifunctional (meth) acrylate monomer 10 to 90:90 to 10, preferably 25 to 75:75 to 25, more preferably 40 to 65:60 to 35 Is most preferred.
- the polyfunctional (meth) acrylate is preferably hydrophobic.
- Hydrophobic polyfunctional (meth) acrylate refers to (meth) acrylate having no hydroxyl group.
- the cured product of the composition swells at the time of cutting, which causes positional displacement, which may be inferior in processing accuracy. Even if it is hydrophilic, it can be used as long as the cured product of the composition does not swell or partially dissolve in water.
- Monofunctional (meth) acrylate monomers include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate , Isodecyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, phenyl (meth) acrylate, cyclohexyl (meth) acrylate, dicyclopentanyl (meth) acrylate, dicyclopentenyl (meth) acrylate, dicyclo Pentenyloxyethyl (meth) acrylate, isobornyl (meth) acrylate, methoxylated cyclodecatriene (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydr
- phenolethylene oxide 2 mol-modified (meth) acrylate, 2- (1,2-cyclohexacarboximido) ethyl (meth) acrylate and 2-hydroxy-3 are more effective.
- -One or more of the group consisting of phenoxypropyl (meth) acrylate is preferred.
- Phenol ethylene oxide 2 mol modified (meth) acrylate may be used in combination with 2- (1,2-cyclohexacarboximido) ethyl (meth) acrylate and / or 2-hydroxy-3-phenoxypropyl (meth) acrylate More preferred.
- (A) If the polyfunctional (meth) acrylate is 5 parts by mass or more, there is no fear that the initial adhesiveness is lowered, and if it is 95 parts by mass or less, releasability can be secured.
- the content of (B) monofunctional (meth) acrylate is more preferably 40 to 80 parts by mass in 100 parts by mass of the total amount of (A) and (B).
- Monofunctional (meth) acrylate is more preferably hydrophobic as in (A).
- Hydrophobic polyfunctional (meth) acrylate refers to (meth) acrylate having no hydroxyl group.
- the cured product of the composition swells at the time of cutting, which causes positional displacement, which may be inferior in processing accuracy. Even if it is hydrophilic, it can be used if the cured product of the composition does not swell or partially dissolve with water.
- the photopolymerization initiator is blended for sensitization with visible light or ultraviolet active light to promote photocuring of the resin composition, and various known photopolymerization initiators can be used. . Specifically, benzophenone or a derivative thereof; benzyl or a derivative thereof; anthraquinone or a derivative thereof; benzoin; a benzoin derivative such as benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, benzoin isobutyl ether, or benzyl dimethyl ketal; diethoxyacetophenone, 4 Acetophenone derivatives such as t-butyltrichloroacetophenone; 2-dimethylaminoethyl benzoate; p-dimethylaminoethyl benzoate; diphenyl disulfide; thioxanthone or derivatives thereof; camphorquinone; 7,7-dimethyl-2,3-dioxobicycl
- a photoinitiator can be used 1 type or in combination of 2 or more types.
- One or more of the group consisting of [2-hydroxy-ethoxy] -ethyl ester are preferred.
- the content of the photopolymerization initiator is preferably 0.1 to 20 parts by mass, and more preferably 0.5 to 10 parts by mass with respect to 100 parts by mass in total of (A) and (B). If it is 0.1 mass part or more, the effect of hardening acceleration
- the total mass of the components (A), (B) and (C) preferably accounts for 90% by mass or more of the adhesive composition from the viewpoint of releasability, and can typically account for 95% by mass or more. 98 mass% or more.
- the photocurable sticking agent preferably contains a particulate substance (D) that does not dissolve in the sticking agent components (A), (B), and (C).
- the material of the particulate material (D) may be either generally used organic particles or inorganic particles.
- the organic particles include polyethylene particles, polypropylene particles, crosslinked polymethyl methacrylate particles, and crosslinked polystyrene particles.
- Inorganic particles include ceramic particles such as glass, silica, alumina, and titanium.
- the average particle diameter (D50) of the particulate material (D) is preferably in the range of 20 to 200 ⁇ m.
- the average particle size of the granular material is 20 ⁇ m or more, the peelability is excellent, and when it is 200 ⁇ m or less, it is difficult to cause a shift when the temporarily fixed member is processed, and the dimensional accuracy is excellent.
- a more preferable average particle diameter (D50) is 35 to 150 ⁇ m, more preferably 50 to 120 ⁇ m, from the viewpoint of peelability and dimensional accuracy.
- the average particle diameter (D50) is measured by a laser diffraction particle size distribution measuring device.
- the amount of the granular material (D) used is preferably 0.01 to 20 parts by mass with respect to 100 parts by mass of the total amount of (A) and (B), from the viewpoint of adhesiveness, processing accuracy, and peelability. 0.05 to 10 parts by mass is more preferable, and 0.1 to 6 parts by mass is most preferable.
- the granular material (D) is preferably spherical from the viewpoint of improving processing accuracy, that is, controlling the film thickness of the adhesive.
- the organic particles include methyl methacrylate monomers, crosslinked polymethyl methacrylate particles obtained as monodisperse particles by emulsion polymerization of a styrene monomer and a crosslinkable monomer, and crosslinked polystyrene particles. Examples include spherical silica.
- the said laminated body is fixed to a receiving stand by the adhesive agent X, the adhesive agent Y, or these combination.
- the adhesive may be applied to the surface of the cradle, may be applied to the surface of the laminate, or may be applied to both.
- Various processes such as a cutting process and a router process can be performed with high accuracy on the translucent hard substrate laminate fixed to the cradle.
- the adhesive receiving base and the coating pattern that can maintain the state in which each of the divided light-transmitting hard substrate laminates is fixed to the receiving base after the processing, It is preferable to apply to the surface of the laminate. By doing in this way, it can prevent that the divided translucent hard board
- the adhesive may exist across the boundary line (the path of cutting means such as a disk cutter) that divides the divided light-transmitting hard substrate laminate, and the entire adhesive surface of the light-transmitting hard substrate laminate You may apply to.
- the adhesive 12 is dispersed and applied to the cradle in the vicinity of the respective centers where the divided light-transmitting hard substrate laminate is to be disposed.
- the adhesive since there is no adhesive on the boundary line that divides the divided light-transmitting hard substrate laminate, there is an advantage that the adhesive is prevented from clinging to the cutting means and the life of the cutting means is not reduced.
- the adhesive X a room temperature curable adhesive composition described in JP 2007-39532 A can be suitably used.
- the adhesive X is (A ′) a polyfunctional (meth) acrylate, (B ′) a monofunctional (meth) acrylate, (C ′) an organic peroxide, or (D ′) the organic peroxide. It is an adhesive composition containing a decomposition accelerator and (E ′) a polar organic solvent.
- the adhesive X can be used as a one-component adhesive, (A ′) polyfunctional (meth) acrylate, (B ′) monofunctional (meth) acrylate, and (C ′) organic peroxide
- a second agent containing (A ′) a polyfunctional (meth) acrylate, (B ′) a monofunctional (meth) acrylate, and (D ′) a decomposition accelerator for the organic peroxide It is also possible to use it as a two-component adhesive containing a polar organic solvent (E ′) in either one or both of the first agent and the second agent.
- (E ′) is not contained in the one-component adhesive composition or the two-component adhesive composition. If (E ') is included, not only various processing such as cutting and router processing can be performed with high accuracy, but also it is easy to wobble, cause misalignment or chipping during processing. It is.
- (A ') As the polyfunctional (meth) acrylate the (A) polyfunctional (meth) acrylate listed in the description of the photocurable fixing agent described above can be used.
- As the (B ′) monofunctional (meth) acrylate the (B) monofunctional (meth) acrylate listed in the description of the photocurable fixing agent described above can be used.
- the blending ratio of (A ′) polyfunctional (meth) acrylate and (B ′) monofunctional (meth) acrylate is the same as (A) polyfunctional (meth) acrylate and (B) monofunctional described above in the description of the photocurable fixing agent.
- the mixing ratio of (meth) acrylate can be achieved.
- the compounding ratio here refers to the compounding ratio of the whole component (A ') and component (B') contained in a composition
- the 1st agent and the 2nd agent each of the agents preferably contains the component (A ′) and the component (B ′) at the blending ratio from the viewpoint of the uniformity of the composition and the ease of mixing the first agent and the second agent.
- Organic peroxides include, for example, tertiary butyl hydroperoxide, cumene hydroperoxide, diisopropylbenzene hydroperoxide, paramentane hydroperoxide, 2,5-dimethylhexane-2, hydroperoxides, 5-dihydroperoxide and 1,1,3,3-tetramethylbutyl hydroperoxide, etc.
- ketone peroxides include methyl ethyl ketone peroxide, cyclohexanone peroxide, 3,3,5-trimethylcyclohexanone peroxide, methyl Cyclohexanone peroxide, methyl acetoacetate peroxide, acetylacetone peroxide, etc.
- diacyl peroxides are acetyl peroxide, isobutyl peroxide, Ruperoxide, octanoyl peroxide, decanoyl peroxide, laurinoyl peroxide,
- the amount of (C ′) organic peroxide added is preferably 0.1 to 10 parts by mass with respect to 100 parts by mass as a total of (A ′) and (B ′). More preferably, it is 0.5 to 8 parts by mass. If it is 0.1 parts by mass or more, the curability can be reliably obtained, and if it is 10 parts by mass or less, the adhesiveness and storage stability are not significantly reduced, and the skin irritation is low. This is preferable.
- organic peroxide decomposition accelerator when an organic peroxide such as a hydroperoxide or a ketone peroxide is used, an organic acid metal salt, an organic metal chelate such as naphthene is used.
- Cobalt acid copper naphthenate, manganese naphthenate, cobalt octenate, copper octenoate and manganese octate, copper acetylacetonate, titanium acetylacetonate, manganese acetylacetonate, chromium acetylacetonate, iron acetylacetonate, vanadini Ruacetylacetonate, cobalt acetylacetonate, and the like can be used.
- thiourea derivatives such as diethylthiourea, dibutylthiourea, ethylenethiourea, tetramethylthiourea, mercaptobenzimidazole, and benzoylthiourea should be used. Can do.
- amines such as N, N-dimethyl-p-toluidine, N , N-diethyl-p-toluidine, N, N-di (2-hydroxyethyl) -p-toluidine, N, N-diisopropanol-p-toluidine, triethylamine, tripropylamine, ethyldiethanolamine, N, N- Dimethylaniline, ethylenediamine, triethanolamine, aldehyde-amine condensation reaction products, and the like can be used.
- organic peroxide decomposition accelerators may be used alone or in combination of two or more.
- the amount of the (D ′) organic peroxide decomposition accelerator used is preferably 0.1 to 10 parts by mass with respect to 100 parts by mass in total of (A ′) and (B ′). More preferably, it is 0.5 to 8 parts by mass. If it is 0.1 mass part or more, sclerosis
- the total mass of the components (A ′), (B ′), (C ′) and (D ′) preferably occupies 90% by mass or more of the adhesive composition from the viewpoint of peelability, typically 95. It can occupy more than mass% and can occupy 98 mass% or more.
- the (E ′) polar organic solvent is not particularly required, but rather is harmful if present. However, you may add a small amount for the reason of improving peelability.
- polar organic solvents include alcohols, ketones, esters, and the like.
- Examples of the alcohol include methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, sec-butanol, tert-butanol, n-amyl alcohol, isoamyl alcohol, 2-ethylbutyl alcohol and the like. Further, among the alcohols, methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol, sec-butanol, and tert-butanol having a boiling point of 120 ° C. or less are preferred, and among these, methanol, ethanol More preferred are isopropanol and n-butanol.
- the addition amount of the polar organic solvent is preferably 10 parts by mass or less, more preferably 5 parts by mass or less, and more preferably 1 part by mass or less with respect to 100 parts by mass of the total amount of (A ′) and (B ′). Is more preferred, and most preferred is 0.1 part by mass or less.
- the particulate material (F ′) may be either organic or inorganic particles generally used as the material.
- the organic particles include polyethylene particles, polypropylene particles, cross-linked polymethyl methacrylate particles, and cross-linked polystyrene particles
- examples of inorganic particles include ceramic particles such as glass, silica, alumina, and titanium.
- the granular material (F ′) is preferably spherical from the viewpoint of improving processing accuracy, that is, controlling the film thickness of the adhesive.
- the organic particles include methyl methacrylate monomers, crosslinked polymethyl methacrylate particles obtained as monodisperse particles by emulsion polymerization of a styrene monomer and a crosslinkable monomer, and crosslinked polystyrene particles. Examples include spherical silica.
- the cured product film thickness of the composition can be appropriately selected by those skilled in the art depending on the type, shape, size, etc. of the member, but the average particle diameter (D50) is 1 to 300 ⁇ m In particular, 5 to 200 ⁇ m is more preferable, and 10 to 100 ⁇ m is even more preferable. If it is 1 ⁇ m or more, peelability can be secured, and if it is 300 ⁇ m or less, the processing accuracy does not decrease.
- the particle size distribution is preferably as narrow as possible.
- the average particle diameter (D50) is measured by a laser diffraction particle size distribution measuring device.
- the amount of the particulate material (F ′) used is 0.01 to 20 parts by mass with respect to 100 parts by mass of the total amount of (A ′) and (B ′) from the viewpoint of adhesiveness, processing accuracy, and peelability.
- 0.05 to 10 parts by mass is more preferable, and 0.1 to 6 parts by mass is most preferable.
- the film thickness of the composition after curing is almost constant, and if it is 20 parts by mass or less, there is no fear that the initial adhesiveness is lowered.
- the adhesive composition of the present invention is usually used by stirring and mixing (A ′) to (E ′).
- (A ′), (B ′), (D ′) and (E ′) as necessary are mixed in advance and used.
- mix (A ') and (B') into two parts add (C ') to one agent and (D') to the other agent
- (E ′) may be added to both agents or one of them as necessary, and a method of mixing the two agents at the time of use and the like. Other additives may be added at an appropriate timing.
- the adhesive Y the above-mentioned photocurable fixing agent suitably used for bonding light-transmitting hard substrates, specifically, (A) polyfunctional (meth) acrylate, (B) single An adhesive composition containing a functional (meth) acrylate and (C) a photopolymerization initiator can be suitably used.
- the components that can be added and the blending ratio thereof are as described above.
- polymerization inhibitors include methyl hydroquinone, hydroquinone, 2,2-methylene-bis (4-methyl-6-tertiary butylphenol), catechol, hydroquinone monomethyl ether, monotertiary butyl hydroquinone, 2,5-ditertiary butyl Hydroquinone, p-benzoquinone, 2,5-diphenyl-p-benzoquinone, 2,5-ditertiarybutyl-p-benzoquinone, picric acid, citric acid, phenothiazine, tertiary butylcatechol, 2-butyl-4-hydroxyanisole, and Examples include 2,6-ditertiary butyl-p-cresol.
- the amount of the polymerization inhibitor used is preferably 0.001 to 3 parts by mass with respect to 100 parts by mass of the total amount of (A) and (B) (or (A ′) and (B ′)). More preferred is 01 to 2 parts by mass. Storage stability is ensured at 0.001 part by mass or more, good adhesiveness is obtained at 3 parts by mass or less, and it does not become uncured.
- the adhesives X and Y include various elastomers such as acrylic rubber, urethane rubber, acrylonitrile-butadiene-styrene rubber, inorganic fillers, solvents, extenders, etc. that are generally used within a range that does not impair the object of the present invention.
- Additives such as reinforcing materials, plasticizers, thickeners, dyes, pigments, flame retardants, silane coupling agents and surfactants may also be used.
- an appropriate amount of adhesive X is applied to the adhesive surface of the laminate and / or the receiving base, And bonding them together.
- the adhesive X is a two-component type, in addition to the method just described, the first agent containing (C ′) an organic peroxide is applied to either the laminate or the adhesive surface of the cradle.
- (D ′) a second agent containing an organic peroxide decomposition accelerator is applied and then both are bonded and fixed.
- an appropriate amount of adhesive Y is applied to the adhesive surface of the laminate and / or the cradle, Can be carried out by irradiating light for curing the sticking agent that is sandwiched between the laminate and the cradle in a state where the two are bonded together.
- the irradiated light may reach only the outer periphery of the adhesive surface, and the curing may not proceed sufficiently to the inside. Therefore, a method of using the adhesive Y for the outer peripheral portion of the adhesive surface and using the adhesive X for the inside of the adhesive surface can be considered. With only the adhesive X, it takes time to cure, so it is necessary to temporarily fix it until it cures so as not to be displaced. According to this method, the outer peripheral portion of the adhesive surface is temporarily cured in about 1 to 30 seconds. Since it can be temporarily fixed, it is excellent in terms of workability.
- This method is particularly easy to use when the divided light-transmitting hard substrate laminate is fixed to a cradle and subjected to external processing.
- an application pattern is formed on the adhesive surface 23 so that the adhesive Y22 surrounds the adhesive X21.
- the adhesive X and the adhesive Y are mixed and used. That is, the components of the adhesive X and the adhesive Y may be mixed in advance to form a mixture of the adhesive X and the adhesive Y. Also in this case, since the adhesive X is present only on a part of the adhesive surface, it is easy to reattach and adjust the position until the adhesive Y is cured by light irradiation.
- ⁇ III. Cutting of translucent hard substrate laminate> After fixing a translucent hard board
- the dividing method is not particularly limited, but a disk cutter (diamond disc, cemented carbide disc), fixed abrasive type or loose abrasive type wire saw, laser beam, etching (eg, chemical etching using hydrofluoric acid, sulfuric acid, etc.) And electrolytic etching), water jet, and red tropical (nichrome wire) or the like, and each may be used alone or in combination to divide into rectangular parallelepiped shapes of the same size.
- a disk cutter diamond disc, cemented carbide disc
- Etching can also be used for surface treatment of the cut surfaces after division.
- cutting can be performed in a state where the light-transmitting hard substrate laminate is fixed to the cradle, so that highly accurate cutting can be performed.
- FIG. 4 is a schematic diagram of the translucent hard substrate laminate 14 before cutting and placed on the cradle 10 and the translucent hard substrate laminate 14 after cutting. It can be seen that each translucent hard substrate laminate 14 divided by the cutting process is still fixed to the cradle 10.
- the divided translucent hard substrate laminate is peeled from the cradle by applying an external force without heating to 40 ° C. or higher.
- the temperature of 40 ° C. is a temperature that takes into consideration the work environment in summer, and does not need to be intentionally heated.
- the temperature of the translucent hard substrate laminate during peeling is typically 10 to 35 ° C.
- the adhesives X and Y used to adhere the light-transmitting hard substrate laminate to the cradle are essentially heated (typically 30 to 100 ° C., more typically 60 to 100 ° C.).
- a metal jig such as aluminum or stainless steel or a plastic jig 15 such as Teflon (registered trademark) is inserted into the adhesive layer between the cradle and the translucent hard substrate laminate.
- a method of peeling using the principle of leverage is mentioned.
- An example of such a jig 15 is shown in FIG.
- the material of the cradle is not particularly limited, and examples thereof include aluminum and stainless steel.
- the outer shape processing may be performed by any known means. For example, grinding with a rotating grindstone, drilling with an ultrasonic vibration drill, end surface processing with a rotating brush, drilling with etching, end surface processing with etching, outer shape processing with etching, burner Flame processing using The processing methods can be used alone or in combination. Etching can also be used for surface treatment after shape processing.
- the outer shape can be processed in a state in which the light-transmitting hard substrate laminate is fixed to the cradle, so that the outer shape can be processed with high accuracy.
- substrate laminated body after an external shape process are peeled, and a some plate-shaped product is formed.
- a heating method In order for a sticking agent to soften in a film form and to isolate
- a suitable hot water temperature varies depending on the fixing agent employed, but is usually about 60 to 100 ° C.
- photo-curing sticking agent (sticking agent (I) The following components (A) to (D) were mixed to prepare a photocurable fixing agent.
- UV-3000B 20 parts by mass of “UV-3000B” manufactured by Nippon Gosei Co., Ltd. (hereinafter abbreviated as “UV-3000B”), tripropylene glycol diacrylate (NK ester manufactured by Shin-Nakamura Chemical Co., Ltd.) as polyfunctional (meth) acrylate 30 parts by mass of APG-200 (hereinafter abbreviated as “APG-200”),
- APG-200 2- (1,2-cyclohexacarboximido) ethyl acrylate
- M-140 monofunctional (meth) acrylate -140 40 parts by mass, phenol ethylene oxide 2 mol modified acrylate (Aronix M-101A manufactured by Toa Gosei Co., Ltd., hereinafter abbreviated as “M-140”) 40 parts by mass, phenol ethylene oxide 2 mol modified acrylate (Aronix M-101A manufactured by Toa Gosei Co., Ltd., hereinafter abbreviated as “
- HP HP
- F ′ granular material
- MDP 2,2-methylene-bis (4-methyl-6-tertiarybutylphenol
- the plate glass laminate fixed to the cradle is cut in the thickness direction along the groove of the cradle by a disc cutter, and 40 plate glass laminates divided into a width of 100 mm, a length of 50 mm and a thickness of 8 mm are obtained. Obtained.
- the outer periphery of the sheet glass laminate is about 1 mm using a router 24 in which diamond is electrodeposited on a grindstone 25 as shown in FIG. 6 with respect to the divided sheet glass laminate fixed to the cradle. Outline processing was performed by grinding.
- Example 2 Preparation of plate glass laminate 10 plate glasses (width 20 mm ⁇ length 20 mm ⁇ thickness 0.7 mm) were prepared as a light-transmitting hard substrate, and bonded together via the photocurable adhesive for plate glass lamination used in Example 1, A laminate of plate glass was produced. Specifically, after applying 0.5 g of the above-mentioned photocurable fixing agent on the first sheet glass, the second sheet glass is pasted on the first sheet glass, and the surface of the second sheet glass The photocurable fixing agent was cured by UV irradiation from the side.
- the UV irradiation amount was 3000 mJ / cm 2 (measured by an integrating illuminometer with a 365 nm light receiver), and the UV irradiation time was 40 seconds. By repeating this procedure, a plate glass laminate made of 10 plate glasses having a thickness of 8 mm was produced.
- cradle fixing adhesive (adhesive (III))
- A As a polyfunctional (meth) acrylate, 15 parts by mass of “UV-3000B” manufactured by Nippon Gosei Co., Ltd. (hereinafter abbreviated as “UV-3000B”), dicyclopentanyl diacrylate (“KAYARAD” manufactured by Nippon Kayaku Co., Ltd.) R-684 ”, hereinafter abbreviated as“ R-684 ”) 15 parts by mass
- B 2- (1,2-cyclohexacarboximide) ethyl acrylate (“ Aronix ”manufactured by Toagosei Co., Ltd.) as monofunctional (meth) acrylate 45 parts by mass of “M-140”, hereinafter abbreviated as “M-140”), 25 parts by mass of phenol ethylene oxide 2 mol modified acrylate (“Aronix M-101A” manufactured by Toagosei Co., Ltd.), (C)
- the UV irradiation conditions are as follows: one side of the adhesive layer for fixing the cradle is irradiated once with a UV irradiation amount of 1600 mJ / cm 2 (measured by an integrated illuminometer with a 365 nm light receiver), and this is applied to the four sides. Irradiated. The UV irradiation time was 6 seconds per time.
- Example 3 As the cradle fixing adhesive, the cradle fixing adhesive composition used in Example 1 (sticking agent (II)) and Example 2 (sticking agent (III)) was mixed at 1: 1 (mass ratio). In the same manner as in Example 2 except that the adhesive was cured by UV irradiation and then left at room temperature for 30 minutes, the laminate was prepared, fixed to a cradle, cut and processed. Peeling from the cradle was performed. UV irradiation to cure the adhesive for fixing the cradle is to fix the cradle while paying attention so that the UV does not directly hit the photo-curing adhesive that bonds the glass plates constituting the laminate.
- Example 4 Example 1 in which the adhesive composition of Example 1 (sticking agent (II)) and the adhesive composition of Example 2 (sticking agent (III)) were prepared as adhesives for fixing the cradle and applied to the inside of the adhesive surface.
- the adhesive (fixing agent (III)) (0.2 g) of Example 2 was applied to the outer peripheral portion of the bonding surface so as to surround the adhesive (fixing agent (II)) (0.2 g). Then, the adhesive was cured by UV irradiation and then left at room temperature for 30 minutes, in the same manner as in Example 2, preparation of the laminate, fixation to the cradle, and peeling from the cradle Went.
- UV irradiation to cure the adhesive for fixing the cradle is to fix the cradle while paying attention so that the UV does not directly hit the photo-curing adhesive that bonds the glass plates constituting the laminate. This is performed by irradiating UV with a spot irradiator from the periphery of the laminate toward the agent layer, and the UV irradiation amount for each side of the adhesive layer for fixing the cradle: 1600 mJ / cm 2 (integrated illuminance by 365 nm light receiver) (Measurement with a meter) was performed once, and this was irradiated to four sides. The UV irradiation time was 6 seconds per time.
- Example 5 As the adhesive for fixing the cradle, a hot melt adhesive “Adfix A” manufactured by Nikka Seiko Co., Ltd. was used, and the adhesive was cured and peeled off from the cradle. In the same manner as in Example 2, production of the laminate, fixation to the cradle, cutting processing, and peeling from the cradle were performed. Heating for curing and peeling was performed by heating the cradle with a hot plate at 100 ° C. for 30 minutes.
- Example 6 (comparison)> The same procedure as in Example 2 was used except that a two-component room temperature curing type “HF8600” manufactured by Loctite Co., Ltd. was used as the cradle fixing adhesive, and the adhesive was cured by leaving it at room temperature for 30 minutes. The laminate was prepared, fixed to the cradle, cut, and peeled off from the cradle.
- the difference between the present adhesive and the room temperature curable adhesive used in the present invention is that the total of A ′, B ′, C ′ and D ′ is less than 90% by mass of the composition.
- Example 7 As the adhesive for fixing the cradle, a two-component room temperature curing type Scotch-Weld EPX “DP-105 clear” manufactured by 3M was used, and the adhesive was cured by a method of leaving it at room temperature for 30 minutes. In the same manner as in Example 2, production of the laminate, fixation to the cradle, cutting processing, and peeling from the cradle were performed.
- the difference between the present adhesive and the room-temperature curable adhesive used in the present invention is an epoxy adhesive, and the total of A ′, B ′, C ′ and D ′ is less than 90% by mass of the composition. Is a point.
- Example 8 (comparison)> The laminate was prepared, fixed to the cradle, fixed to the cradle, cut and processed in the same manner as in Example 2 except that the UV-curable World Lock “8791L3” manufactured by Kyoritsu Kagaku Sangyo Co., Ltd. was used as the cradle fixing adhesive. Peeling from the cradle was performed.
- the difference between the present adhesive and the photo-curable adhesive used in the present invention is that it is epoxy-based and contains an inorganic filler.
- Example 9 Similar to Example 2 except that the adhesive for fixing the cradle (adhesive (IV)) was used instead of the adhesive composition for fixing the cradle used in Example 2 (adhesive (III)). Carried out. 1.
- UV-3000B As a polyfunctional (meth) acrylate, 20 parts by mass of “UV-3000B” (hereinafter abbreviated as “UV-3000B”, urethane acrylate, weight average molecular weight 18000) manufactured by Nippon Gosei Co., Ltd., dicyclopentanyl diacrylate (Nipponization) “KAYARADR-684” manufactured by Yakuhin Co., Ltd., hereinafter abbreviated as “R-684”), 25 parts by mass, (B) As monofunctional (meth) acrylate, 35 parts by mass of 2-hydroxy-3-phenoxypropyl acrylate (“Aronix M-5700” manufactured by Toa Gosei Co., Ltd., hereinafter abbreviated as “M-5700”), 2 mol of phenol ethylene oxide 20 parts by mass of modified acrylate (“Aronix M-101A” manufactured by Toa Gosei Co., Ltd.)
- Example 10 Example 3 except that the preparation of the cradle fixing adhesive (adhesive (IV)) was used instead of the adhesive composition for cradle fixing used in Example 2 (adhesive (III)). It carried out similarly.
- Example 11 Example 4 except that the preparation of the cradle fixing adhesive (adhesive (IV)) was used in place of the adhesive composition for fixing the cradle used in Example 2 (adhesive (III)). It carried out similarly.
- Example 1 The results of the experiment are shown in Table 1.
- Example 1 the glass side was cleanly peelable without any adhesive residue. Further, comparing Example 3 and Example 4, the glass cut in Example 4 had less chipping.
- Example 5 comparative
- the adhesive strength between the plate glasses constituting the laminate was lowered by the heat applied at the time of bonding and peeling, and the layers could be easily peeled by hand.
- Examples 6 to 8 the adhesive strength was too high, and a part of the plate glass was broken during peeling. Further, when Example 10 and Example 11 were compared, the glass cut in Example 11 had less chipping.
- Example 12 A cradle fixing adhesive having the same components as the photocurable sticking agent of Example 1 was used except that 5 parts by mass of methanol was added. Otherwise, in the same manner as in Example 1, the laminate was prepared, fixed to the cradle, cut, and peeled off from the cradle. In this case, it was possible to peel off the glass side with no adhesive residue, but a part of the divided glass sheet laminate was detached from the cradle during the cutting process.
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Abstract
Description
- 2枚以上の透光性硬質基板同士が光硬化性の固着剤で貼り合わせられた透光性硬質基板積層体を準備する工程と、
- 当該積層体を下記の接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する工程と、
<接着剤X>
(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、(C’)有機過酸化物、及び(D’)前記有機過酸化物の分解促進剤を含有する硬化性組成物
<接着剤Y>
(A)多官能(メタ)アクリレート、(B)単官能(メタ)アクリレート、及び(C)光重合開始剤を含有する接着性組成物
- 受け台に固定された当該積層体を厚み方向に切断し、所望の数の分割された透光性硬質基板積層体を形成する加工Aを行うか、又は、受け台に固定された当該積層体に所望の外形加工Bを行う工程と、
- 加工された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程と、
を含む透光性硬質基板積層体の加工方法である。
- 2枚以上の透光性硬質基板同士が光硬化性の固着剤で貼り合わせられた透光性硬質基板積層体を準備する工程と、
- 当該積層体を下記の接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する工程と、
<接着剤X>
(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、(C’)有機過酸化物、及び(D’)前記有機過酸化物の分解促進剤を含有する接着性組成物であり、成分(A’)、(B’)、(C’)及び(D’)の合計質量が組成物の90質量%以上を占める接着性組成物
<接着剤Y>
(A)多官能(メタ)アクリレート、(B)単官能(メタ)アクリレート、及び(C)光重合開始剤を含有する接着性組成物であり、成分(A)、(B)及び(C)の合計質量が組成物の90質量%以上を占める接着性組成物
- 受け台に固定された当該積層体を厚み方向に分割し、所望の数の分割された透光性硬質基板積層体を形成する加工Aを行う工程と、
- 分割された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程と、
- 剥離された透光性硬質基板積層体それぞれを接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する工程と、
- 受け台に固定された当該積層体に所望の外形加工Bを行う工程と、
- 当該外形加工を施された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程と、
を含む透光性硬質基板積層体の加工方法である。
図1は、切断加工や外形加工を行う前の透光性硬質基板積層体の一例を示す模式図である。透光性硬質基板積層体を構成する透光性硬質基板としては、特に制限はないが、板ガラス(強化板ガラス、素材板ガラス、透明導電膜付きガラス基板、電極や回路が形成されたガラス基板等)、サファイア基板、石英基板、プラスチック基板、フッ化マグネシウム基板などが挙げられる。一枚の透光性硬質基板の大きさに特に制限はないが、典型的には10000~250000mm2程度の面積を有し、0.1~2mm程度の厚みを有する。積層される一枚ごとの透光性硬質基板は同じサイズであるのが一般的である。透光性硬質基板積層体は2枚以上の透光性硬質基板が積層されている。透光性硬質基板積層体の全体の厚みが薄すぎると機械的強度が弱くなり、加工のために受け台に接着剤により固定した透光性硬質基板積層体を剥離する際に割れやすくなることから、透光性硬質基板の材質にもよるが、好ましくは5枚以上(基板の合計の厚みとしては0.5mm以上)、より好ましくは10~30枚程度(基板の合計の厚みとしては1~60mm程度)の透光性硬質基板が光硬化性固着剤を介して積層される。
流速:1.0ml/min
設定温度:40℃
カラム構成:東ソー社製「TSK guardcolumn MP(×L)」6.0mmID×4.0cm1本、および東ソー社製「TSK-GEL MULTIPOREHXL-M」 7.8mmID×30.0cm(理論段数16,000段)2本、計3本(全体として理論段数32,000段)、
サンプル注入量:100μl(試料液濃度1mg/ml)
送液圧力:39kg/cm2
検出器:RI検出器
多官能(メタ)アクリレートオリゴマー/ポリマーと2官能(メタ)アクリレートモノマーを併用する場合の含有割合は、多官能(メタ)アクリレートオリゴマー/ポリマーと2官能(メタ)アクリレートモノマーの合計100質量部中、質量比で、多官能(メタ)アクリレートオリゴマー/ポリマー:2官能(メタ)アクリレートモノマー=10~90:90~10が好ましく、25~75:75~25がより好ましく、40~65:60~35が最も好ましい。
粒状物質(D)の使用量は、接着性、加工精度、剥離性の観点から、(A)及び(B)の合計量100質量部に対して、0.01~20質量部が好ましく、0.05~10質量部がより好ましく、0.1~6質量部が最も好ましい。
透光性硬質基板積層体を準備した後、当該積層体を接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する。接着剤は受け台の表面に塗布してもよく、当該積層体の表面に塗布してもよく、又は、両者に塗布してもよい。受け台に固定された透光性硬質基板積層体に対しては、切断加工やルーター加工など種々の加工を高精度で実施できるようになる。
接着剤Xは一実施形態において、(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、(C’)有機過酸化物、(D’)前記有機過酸化物の分解促進剤、並びに(E’)極性有機溶剤を含有する接着性組成物である。
接着剤Xは1剤型接着剤として使用することも可能であるが、(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、及び(C’)有機過酸化物を含有する第一剤と、(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、及び(D’)前記有機過酸化物の分解促進剤を含有する第二剤とからなり、第一剤又は第二剤のいずれか一方又は両方に(E’)極性有機溶剤を含有する2剤型接着剤として使用することも可能である。
ただし、加工精度向上の観点からは、(E’)は1剤型の接着性組成物においても2剤型の接着性組成物においても含有しない方が好ましい。(E’)が含まれていると、切断加工やルーター加工など種々の加工を高精度で実施できないだけでなく、加工中にぐらついたり、位置ずれを起こしたり、チッピングが発生したりし易いからである。
粒状物質(F’)の使用量は、接着性、加工精度、剥離性の観点から、(A’)及び(B’)の合計量100質量部に対して、0.01~20質量部が好ましく、0.05~10質量部がより好ましく、0.1~6質量部が最も好ましい。
受け台に透光性硬質基板積層体を固定した後、これを厚み方向に切断し、所望の数の分割された透光性硬質基板積層体を形成する。
分割方法は特に制限はないが、円板カッター(ダイヤモンドディスク、超硬合金ディスク)、固定砥粒式又は遊離砥粒式ワイヤソー、レーザービーム、エッチング(例:フッ酸や硫酸等を用いた化学エッチングや電解エッチング)、ウォータージェット及び赤熱帯(ニクロム線)などの切断手段をそれぞれ単独で又は組み合わせて使用して、同サイズの直方体形状に分割する方法が挙げられる。エッチングは分割後の切断面の表面処理に用いることもできる。
本発明においては、受け台に透光性硬質基板積層体が固定された状態で切断加工を行うことができるため、高精度な切断加工が可能となる。図4は、受け台10に載置された切断加工前の透光性硬質基板積層体14と、切断加工後の透光性硬質基板積層体14の模式図を表している。切断加工によって分割された各透光性硬質基板積層体14は依然として受け台10に固定されることが分かる。
切断加工後は、分割された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する。40℃というのは夏場の作業環境を考慮した温度であり、意図的に加熱する必要はない。剥離時の透光性硬質基板積層体の温度は典型的には10~35℃である。本発明において透光性硬質基板積層体を受け台に接着するために使用する接着剤X及びYは、本質的には加熱(典型的には30~100℃、より典型的には60~100℃の温水への接触)することによって剥離しやすくなることから、剥離する際には加熱が予定されているものであるが、本発明ではこれを加熱することなく外部からの力学的作用のみによって剥離する点で特徴的である。これは当該接着剤がそれほど大きな接着力を付与しないという点と、積層体は一定の厚みを有しているために応力を与えても容易に割れないという点の共同効果によるものと考えられる。一方で、加熱しないため、透光性硬質基板積層体の各基板を仮接着している接着剤が接着力を失って層間剥離するおそれが少ない。
分割された透光性硬質基板積層体は、受け台から剥離した後、外形加工のための受け台へそれぞれ固定する。受け台への固定は「II.透光性硬質基板積層体の受け台への固定」の欄に記載した方法と同様の方法で行うことができる。接着面に対する接着剤の塗布パターンとしては特に制限はないが、接着剤Xを使用するときは図3の(b)に示すように、接着面に十文字を描くパターンとすることができる。また、接着剤Yを使用するときは外周から照射するUV光が接着剤に届きやすいように、図3の(c)に示すように、外周に接着剤を点在させるパターンとすることができる。
受け台に分割された透光性硬質基板積層体を固定した後、これに所望の外形加工を行う。この工程では、分割された透光性硬質基板積層体毎に目的とする板状製品の形状に一体的に加工を行うことができるため、板状製品の生産速度を格段に高められるという利点がある。外形加工は公知の任意の手段によって行えばよいが、例えば回転砥石による研削、超音波振動ドリルによる孔開け、回転ブラシによる端面加工、エッチングによる孔開け、エッチングによる端面加工、エッチングによる外形加工、バーナーを用いた火炎加工等が挙げられる。加工方法はそれぞれ単独で又は組み合わせて使用することができる。エッチングは形状加工後の表面処理に用いることもできる。
本発明においては、受け台に透光性硬質基板積層体が固定された状態で外形加工を行うことができるため、高精度な外形加工が可能となる。
外形加工後は、「IV.切断加工後の透光性硬質基板積層体の剥離」と同様に、透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する。
外形加工後の透光性硬質基板積層体を加熱することで貼り合わせられていた透光性硬質基板同士を剥離し、複数の板状製品を形成する。加熱方法としては特に制限はないが、固着剤がフィルム状に軟化して各板状製品に上手く分離するため、温水に形状加工後の透光性硬質基板積層体を浸漬する方法が好ましい。好適な温水の温度は採用する固着剤によって異なるが、通常は60~100℃程度である。
1.光硬化性固着剤の作製(固着剤(I))
以下の(A)~(D)の成分を混合して光硬化性固着剤を作製した。
(A)多官能(メタ)アクリレートとして、日本合成社製「UV-3000B」(ウレタンアクリレート以下「UV-3000B」と略す、重量平均分子量18000、ポリオール化合物はポリエステルポリオール、有機ポリイソシアネート化合物はイソホロンジイソシアネート、ヒドロキシ(メタ)アクリレートは2-ヒドロキシエチルアクリレート)20質量部、ジシクロペンタニルジアクリレート(日本化薬社製「KAYARAD R-684」、以下「R-684」と略す)15質量部、
(B)単官能(メタ)アクリレートとして、2-(1,2-シクロヘキサカルボキシイミド)エチルアクリレート(東亜合成社製「アロニックスM-140」、以下「M-140」と略す)40質量部、フェノールエチレンオキサイド2モル変性アクリレート(東亜合成社製「アロニックスM-101A」)25質量部、
(C)光重合開始剤としてBDK:ベンジルジメチルケタール(BASF社製「IRGACURE651」)5質量部、
(D)(A)~(C)に溶解しない粒状物質として平均粒径(D50)は100μmの球状架橋ポリスチレン粒子(ガンツ化成社製「GS-100S」)1質量部
透光性硬質基板として板ガラス(横530mm×縦420mm×厚み0.7mm)を10枚用意し、上記光硬化性固着剤を介して貼り合わせ、板ガラスの積層体を作製した。具体的には、1枚目の板ガラス上に上記光硬化性固着剤を40g塗布した後、1枚目の板ガラスの上に2枚目の板ガラスを貼り合わせて2枚目の板ガラスの表面側からUV照射し、上記光硬化性固着剤を硬化させた。UV照射量は3000mJ/cm2(365nmの受光器による積算照度計による測定)とし、UV照射時間は40秒とした。この手順を繰り返すことで、10枚の板ガラスからなる厚み8mmの板ガラス積層体を作製した。
(A’)多官能(メタ)アクリレートとして、日本合成社製「UV-3000B」(ウレタンアクリレート以下「UV-3000B」と略す)20質量部、トリプロピレングリコールジアクリレート(新中村化学社製NKエステル APG-200、以下「APG-200」と略す)30質量部、(B’)単官能(メタ)アクリレートとして、2-(1,2-シクロヘキサカルボキシイミド)エチルアクリレート(東亜合成社製アロニックスM-140、以下「M-140」と略す)40質量部、フェノールエチレンオキサイド2モル変性アクリレート(東亜合成社製アロニックスM-101A、以下「M-101A」と略す)10質量部、(C’)有機過酸化物としてクメンハイドロパーオキサイド(日本油脂社製パークミルH-80、以下「CHP」と略す)3質量部、粒状物質(F’)として平均粒子径35μmの架橋ポリメタクリル酸メチル粒子(根上工業社製アートパールGR-200、球状、以下「GR-200」と略す)0.6質量部、及び、重合禁止剤として2,2-メチレン-ビス(4-メチル-6-ターシャリーブチルフェノール)(以下「MDP」と略す)0.1質量部を混合して組成物を作製した。得られた組成物に(D’)有機過酸化物の分解促進剤としてオクテン酸コバルト(神東ファイン社製オクトライC012、以下「Oct-CO」と略す)を3質量部添加して接着性組成物を作製した。当該接着性組成物は接着剤Xに相当する。
受け台(材質アルミニウム)を用意し、接着剤を受け台の接着面に20g塗布した後、上記板ガラス積層体をこの接着面に気泡が入らないように注意しながら貼り合わせた。その後、室温で30分放置することで接着剤を硬化させることによって上記板ガラス積層体を図2に示すような溝付きの受け台に固定した。なお、溝部分には接着剤が付着しないようにした。
受け台に固定した板ガラス積層体を円板カッターによって受け台の溝に沿って厚み方向に切断し、横100mm×縦50mm×厚み8mmの分割された板ガラス積層体を40個得た。
その後、受け台と板ガラス積層体の間の接着剤層に図5に示す、差し込み部分が平板状のアルミ製の治具15(てこ)を差し込み、てこの原理を利用して加熱することなく、分割されたそれぞれの板ガラス積層体を剥離した。このときの板ガラス積層体の温度は20℃であった。
先とは別の平坦な受け台(材質アルミニウム)を用意し、上述した受け台固定用の接着剤を受け台の接着面に5g塗布した後、上記分割された板ガラス積層体の一つをこの接着面に気泡が入らないように注意しながら貼り合わせた。その後、室温で30分放置することで受け台固定用の接着剤を硬化させることによって当該分割された板ガラス積層体を受け台に固定した。
受け台に固定した分割された板ガラス積層体に対して図6に示すような砥石25にダイヤモンドが電着されたルーター24を用い板ガラス積層体の外周を1mm程度研削する方法で外形加工を施した。
その後、受け台と板ガラス積層体の間の接着剤層に図5に示す、差し込み部分が平板状のアルミ製の治具15(てこ)を差し込み、てこの原理を利用して加熱することなく、外形加工後の板ガラス積層体を剥離した。このときの板ガラス積層体の温度は20℃であった。
1.板ガラス積層体の作製
透光性硬質基板として板ガラス(横20mm×縦20mm×厚み0.7mm)を10枚用意し、例1で使用した板ガラス積層用の光硬化性固着剤を介して貼り合わせ、板ガラスの積層体を作製した。具体的には、1枚目の板ガラス上に上記光硬化性固着剤を0.5g塗布した後、1枚目の板ガラスの上に2枚目の板ガラスを貼り合わせて2枚目の板ガラスの表面側からUV照射し、上記光硬化性固着剤を硬化させた。UV照射量は3000mJ/cm2(365nmの受光器による積算照度計による測定)とし、UV照射時間は40秒とした。この手順を繰り返すことで、厚み8mmの10枚の板ガラスからなる板ガラス積層体を作製した。
(A)多官能(メタ)アクリレートとして、日本合成社製「UV-3000B」(ウレタンアクリレート以下「UV-3000B」と略す)15質量部、ジシクロペンタニルジアクリレート(日本化薬社製「KAYARAD R-684」、以下「R-684」と略す)15質量部、(B)単官能(メタ)アクリレートとして、2-(1,2-シクロヘキサカルボキシイミド)エチルアクリレート(東亜合成社製「アロニックスM-140」、以下「M-140」と略す)45質量部、フェノールエチレンオキサイド2モル変性アクリレート(東亜合成社製「アロニックスM-101A」)25質量部、(C)光重合開始剤としてベンジルジメチルケタール(BASF社製「IRGACURE651」)、以下「BDK」と略す)10質量部、(D)粒状物質として平均粒径100μmの球状架橋ポリスチレン粒子(ガンツ化成社製「GS-100S」)0.1質量部、重合禁止剤として2,2-メチレン-ビス(4-メチル-6-ターシャリーブチルフェノール)(住友化学社製「スミライザーMDP-S」、以下「MDP」と略す)0.1質量部を混合してUV接着性組成物を作製した。当該接着性組成物は接着剤Yに相当する。
受け台(材質アルミニウム)を用意し、受け台固定用の接着剤を受け台の接着面に0.5g塗布した後、上記板ガラス積層体をこの接着面に気泡が入らないように注意しながら貼り合わせた。次いで、積層体を構成するガラス板を貼り合わせている光硬化性固着剤にUVが直接当たらないように留意しながら、受け台固定用の接着剤層に向かって積層体の周囲からスポット照射器によってUVを照射し、受け台固定用の接着剤を硬化させることによって上記板ガラス積層体を受け台に固定した。UV照射条件は、受け台固定用の接着剤層1辺毎にUV照射量:1600mJ/cm2(365nmの受光器による積算照度計による測定)で1回照射し、これを4辺に対して照射した。UV照射時間は1回あたり6秒であった。
受け台に固定した板ガラス積層体を円板カッターによって受け台の溝に沿って厚み方向に切断し、横20mm×縦10mm×厚み8mmの分割された板ガラス積層体を2個得た。
その後、受け台と板ガラス積層体の間の接着剤層に図5に示す、差し込み部分が平板状のアルミ製の治具15(てこ)を差し込み、てこの原理を利用して加熱することなく、分割されたそれぞれの板ガラス積層体を剥離した。このときの板ガラス積層体の温度は20℃であった。
受け台固定用接着剤として、例1(固着剤(II))及び例2(固着剤(III))で使用した受け台固定用の接着性組成物を1:1(質量比)で混合したものを使用し、当該接着剤の硬化を、UV照射した後に室温で30分間放置する方法により行った他は、例2と同様にして、積層体の作製、受け台への固定、切断加工及び受け台からの剥離を行った。受け台固定用接着剤を硬化させるためのUV照射は、積層体を構成するガラス板を貼り合わせている光硬化性固着剤にUVが直接当たらないように留意しながら、受け台固定用の接着剤層に向かって積層体の周囲からスポット照射器によってUVを照射することにより行い、受け台固定用の接着剤層1辺毎にUV照射量:1600mJ/cm2(365nmの受光器による積算照度計による測定)で1回照射し、これを4辺に対して照射した。UV照射時間は1回あたり6秒であった。
受け台固定用接着剤として、例1の接着性組成物(固着剤(II))及び例2の接着性組成物(固着剤(III))を用意し、接着面の内部に塗布した例1の接着剤(固着剤(II))(0.2g)を取り囲むように、接着面の外周部分に例2の接着剤(固着剤(III))(0.2g)を塗布した。そして、当該接着剤の硬化を、UV照射した後に室温で30分間放置する方法により行った他は、例2と同様にして、積層体の作製、受け台への固定、及び受け台からの剥離を行った。受け台固定用接着剤を硬化させるためのUV照射は、積層体を構成するガラス板を貼り合わせている光硬化性固着剤にUVが直接当たらないように留意しながら、受け台固定用の接着剤層に向かって積層体の周囲からスポット照射器によってUVを照射することにより行い、受け台固定用の接着剤層1辺毎にUV照射量:1600mJ/cm2(365nmの受光器による積算照度計による測定)で1回照射し、これを4辺に対して照射した。UV照射時間は1回あたり6秒であった。
受け台固定用接着剤として、ホットメルト型の接着剤である日化精工社製「アドフィックスA」を使用し、当該接着剤の硬化及び受け台からの剥離を加熱することにより行った他は、例2と同様にして、積層体の作製、受け台への固定、切断加工及び受け台からの剥離を行った。硬化及び剥離のための加熱は、ホットプレートにより受け台を100℃×30分間加熱することにより行った。
受け台固定用接着剤として、二剤常温硬化型のロックタイト社製「HF8600」を使用し、当該接着剤の硬化を、室温で30分間放置する方法により行った他は、例2と同様にして、積層体の作製、受け台への固定、切断加工及び受け台からの剥離を行った。本接着剤が本発明で使用する常温硬化型の接着剤と異なる点は、A’、B’、C’及びD’の合計が組成物の90質量%未満である点である。
受け台固定用接着剤として、二剤常温硬化型の3M社製Scotch-Weld EPX「DP-105クリア」を使用し、当該接着剤の硬化を、室温で30分間放置する方法により行った他は、例2と同様にして、積層体の作製、受け台への固定、切断加工及び受け台からの剥離を行った。本接着剤が本発明で使用する常温硬化型の接着剤と異なる点は、エポキシ系接着剤であり、A’、B’、C’及びD’の合計が組成物の90質量%未満である点である。
受け台固定用接着剤として、紫外線硬化型の協立化学産業社製ワールドロック「8791L3」を使用した他は、例2と同様にして、積層体の作製、受け台への固定、切断加工及び受け台からの剥離を行った。本接着剤が本発明で使用する光硬化型の接着剤と異なる点は、エポキシ系であり、かつ無機フィラーが配合されている点である。
例2(固着剤(III))で使用した受け台固定用の接着性組成物の代わりに、受け台固定用接着剤(固着剤(IV))を使用したこと以外は、例2と同様に実施した。
1.受け台固定用接着剤の作製(固着剤(IV))
(A)多官能(メタ)アクリレートとして、日本合成社製「UV-3000B」(ウレタンアクリレート以下「UV-3000B」と略す、重量平均分子量18000)20質量部、ジシクロペンタニルジアクリレート(日本化薬社製「KAYARADR-684」、以下「R-684」と略す)25質量部、
(B)単官能(メタ)アクリレートとして、2-ヒドロキシ-3-フェノキシプロピルアクリレート(東亜合成社製「アロニックスM-5700」、以下「M-5700」と略す)35質量部、フェノールエチレンオキサイド2モル変性アクリレート(東亜合成社製「アロニックスM-101A」)20質量部、
(C)光重合開始剤としてベンジルジメチルケタール(BASF社製「IRGACURE651」)、以下「BDK」と略す)10質量部、
(D)粒状物質として平均粒径100μmの球状架橋ポリスチレン粒子(ガンツ化成社製「GS-100S」)1質量部、
(E)重合禁止剤として2,2-メチレン-ビス(4-メチル-6-ターシャリーブチルフェノール)(住友化学社製「スミライザーMDP-S」、以下「MDP」と略す)0.1質量部
例2(固着剤(III))で使用した受け台固定用の接着性組成物の代わりに、受け台固定用接着剤の作製(固着剤(IV))を使用したこと以外は、例3と同様に実施した。
例2(固着剤(III))で使用した受け台固定用の接着性組成物の代わりに、受け台固定用接着剤の作製(固着剤(IV))を使用したこと以外は、例4と同様に実施した。
実験の結果を表1に示す。例1~4、例9~11では、ガラス側に糊残り無くきれいに剥離可能であった。また、例3と例4を比較すると、例4で切断加工したガラスの方がチッピングが少なかった。例5(比較)では、接着時及び剥離時に与えた熱によって積層体を構成する板ガラス同士の接着強度が低下し、手で容易に層間剥離できる状態となった。例6~8(比較)では、接着力が高すぎ、剥離時に板ガラスの一部が割れてしまった。また、例10と例11を比較すると、例11で切断加工したガラスの方がチッピングが少なかった。
メタノールを5質量部添加した他は、例1の光硬化性固着剤と同様の成分を有する受け台固定用接着剤を使用した。その他は、例1と同様にして、積層体の作製、受け台への固定、切断加工及び受け台からの剥離を行った。この場合、ガラス側に糊残り無くきれいに剥離できたが、切断加工時に一部の分割された板ガラス積層体が受け台から外れてしまった。
11 溝部
12 接着剤
14 透光性硬質基板積層体
15 治具
21 接着剤X
22 接着剤Y
23 接着面
24 ルーター
25 砥石
Claims (9)
- - 2枚以上の透光性硬質基板同士が光硬化性の固着剤で貼り合わせられた透光性硬質基板積層体を準備する工程と、
- 当該積層体を下記の接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する工程と、
<接着剤X>
(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、(C’)有機過酸化物、及び(D’)前記有機過酸化物の分解促進剤を含有する接着性組成物であり、成分(A’)、(B’)、(C’)及び(D’)の合計質量が組成物の90質量%以上を占める接着性組成物
<接着剤Y>
(A)多官能(メタ)アクリレート、(B)単官能(メタ)アクリレート、及び(C)光重合開始剤を含有する接着性組成物であり、成分(A)、(B)及び(C)の合計質量が組成物の90質量%以上を占める接着性組成物
- 受け台に固定された当該積層体を厚み方向に切断し、所望の数の分割された透光性硬質基板積層体を形成する加工Aを行うか、又は、受け台に固定された当該積層体に所望の外形加工Bを行う工程と、
- 加工された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程と、
を含む透光性硬質基板積層体の加工方法。 - - 2枚以上の透光性硬質基板同士が光硬化性の固着剤で貼り合わせられた透光性硬質基板積層体を準備する工程と、
- 当該積層体を下記の接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する工程と、
<接着剤X>
(A’)多官能(メタ)アクリレート、(B’)単官能(メタ)アクリレート、(C’)有機過酸化物、及び(D’)前記有機過酸化物の分解促進剤を含有する接着性組成物であり、成分(A’)、(B’)、(C’)及び(D’)の合計質量が組成物の90質量%以上を占める接着性組成物
<接着剤Y>
(A)多官能(メタ)アクリレート、(B)単官能(メタ)アクリレート、及び(C)光重合開始剤を含有する接着性組成物であり、成分(A)、(B)及び(C)の合計質量が組成物の90質量%以上を占める接着性組成物
- 受け台に固定された当該積層体を厚み方向に分割し、所望の数の分割された透光性硬質基板積層体を形成する加工Aを行う工程と、
- 分割された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程と、
- 剥離された透光性硬質基板積層体それぞれを接着剤X、接着剤Y又はこれらの組み合わせによって受け台に固定する工程と、
- 受け台に固定された当該積層体に所望の外形加工Bを行う工程と、
- 当該外形加工を施された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程と、
を含む透光性硬質基板積層体の加工方法。 - 前記加工Aを行う場合には、当該加工後にも、分割された透光性硬質基板積層体のそれぞれが受け台に固定された状態を維持できるような塗布パターンで接着剤X、接着剤Y又はこれらの組み合わせを受け台及び/又は当該積層体の接着面に塗布する請求項1又は2に記載の透光性硬質基板積層体の加工方法。
- 前記加工Bを行う場合には、接着剤Xの周囲を接着剤Yが取り囲むような塗布パターンで接着剤X及び接着剤Yを受け台及び/又は当該積層体の接着面に塗布する請求項1~3の何れか一項に記載の透光性硬質基板積層体の加工方法。
- 接着剤X、接着剤Y又はこれらの組み合わせが接着剤X及び接着剤Yの混合物である請求項1~3の何れか一項に記載の透光性硬質基板積層体の加工方法。
- 少なくとも接着剤Xが使用され、接着剤Xは極性有機溶剤を含有しない請求項1~5の何れか一項に記載の透光性硬質基板積層体の加工方法。
- 前記分割された又は前記外形加工を施された透光性硬質基板積層体を40℃以上に加熱することなく、外力を与えることによって受け台から剥離する工程は、受け台と透光性硬質基板積層体の間の接着剤層に治具を差し込み、てこの原理を利用して剥離する工程である請求項1~6の何れか一項に記載の透光性硬質基板積層体の加工方法。
- 透光性硬質基板が板ガラスである請求項1~7の何れか一項に記載の透光性硬質基板積層体の加工方法。
- 請求項1~8の何れか一項に記載の透光性硬質基板積層体の加工方法を施された透光性硬質基板積層体を加熱することで貼り合わせられていた透光性硬質基板同士を剥離し、複数の板状製品を形成する工程を含む板状製品の製造方法。
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US13/885,929 US9227385B2 (en) | 2010-11-19 | 2011-11-17 | Method for processing transluscent rigid substrate laminate and method for manufacturing plate shaped product |
KR1020137015614A KR101696331B1 (ko) | 2010-11-19 | 2011-11-17 | 투광성 경질 기판 적층체의 가공 방법 및 판상 제품의 제조 방법 |
EP11840994.5A EP2641947A4 (en) | 2010-11-19 | 2011-11-17 | METHOD FOR PROCESSING A LIGHT-THRESHOLD ROBUST SUBSTRATE LAMINATE AND METHOD FOR PRODUCING A PANEL PRODUCT |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014036925A (ja) * | 2012-08-15 | 2014-02-27 | Denki Kagaku Kogyo Kk | 撹拌装置及び小サイズの平板部材の製造方法 |
JP2019011208A (ja) * | 2017-06-29 | 2019-01-24 | 日本電気硝子株式会社 | ガラス樹脂積層体の製造方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI550069B (zh) * | 2010-09-14 | 2016-09-21 | Sumitomo Chemical Co | Polymerizable liquid crystal composition |
CN103797082B (zh) * | 2011-09-14 | 2016-07-06 | 电化株式会社 | 组合物及使用了该组合物的部件的临时固定方法 |
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JP2021158852A (ja) * | 2020-03-27 | 2021-10-07 | 日本電産株式会社 | 積層体製造装置及び積層体製造方法 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0554878B2 (ja) * | 1985-06-14 | 1993-08-13 | Three Bond Co Ltd | |
JP2007039532A (ja) * | 2005-08-02 | 2007-02-15 | Denki Kagaku Kogyo Kk | 硬化性組成物及びそれを用いる部材の仮固定方法 |
WO2008018252A1 (fr) | 2006-08-10 | 2008-02-14 | Denki Kagaku Kogyo Kabushiki Kaisha | Composition adhésive et procédé pour fixer temporairement un élément à l'aide de cette dernière |
JP2009256125A (ja) * | 2008-04-15 | 2009-11-05 | Shoda Techtron Corp | 板ガラスの加工方法 |
WO2010010900A1 (ja) * | 2008-07-22 | 2010-01-28 | 電気化学工業株式会社 | 部材の仮固定・剥離方法及びそれに好適な仮固定用接着剤 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5641140A (en) * | 1995-03-10 | 1997-06-24 | Sorenson; Roger A. | Adhering structures for the purpose of employing the forces of intermolecular attraction in liquids to controllably and removably adhere one manufactured object to another |
JP3838637B2 (ja) * | 2002-06-10 | 2006-10-25 | 日東電工株式会社 | ガラス基板ダイシング用粘着シートおよびガラス基板ダイシング方法 |
JP4916681B2 (ja) * | 2005-07-04 | 2012-04-18 | 電気化学工業株式会社 | 仮固定方法用光硬化性接着剤及びそれを用いる部材の仮固定方法 |
US8313604B2 (en) * | 2005-07-04 | 2012-11-20 | Denki Kagaku Kogyo Kabushiki Kaisha | Curable composition and temporary fixation method of member using it |
JP5734876B2 (ja) * | 2010-01-21 | 2015-06-17 | 電気化学工業株式会社 | 透光性硬質基板積層体の製造方法及び透光性硬質基板貼り合わせ装置 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0554878B2 (ja) * | 1985-06-14 | 1993-08-13 | Three Bond Co Ltd | |
JP2007039532A (ja) * | 2005-08-02 | 2007-02-15 | Denki Kagaku Kogyo Kk | 硬化性組成物及びそれを用いる部材の仮固定方法 |
WO2008018252A1 (fr) | 2006-08-10 | 2008-02-14 | Denki Kagaku Kogyo Kabushiki Kaisha | Composition adhésive et procédé pour fixer temporairement un élément à l'aide de cette dernière |
JP2009256125A (ja) * | 2008-04-15 | 2009-11-05 | Shoda Techtron Corp | 板ガラスの加工方法 |
WO2010010900A1 (ja) * | 2008-07-22 | 2010-01-28 | 電気化学工業株式会社 | 部材の仮固定・剥離方法及びそれに好適な仮固定用接着剤 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014036925A (ja) * | 2012-08-15 | 2014-02-27 | Denki Kagaku Kogyo Kk | 撹拌装置及び小サイズの平板部材の製造方法 |
JP2019011208A (ja) * | 2017-06-29 | 2019-01-24 | 日本電気硝子株式会社 | ガラス樹脂積層体の製造方法 |
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